:root{--color-parchment:#faf7f2;--color-warm-white:#fffdf9;--color-linen:#f5f0e8;--color-antique:#ede6da;--color-sand:#e8e0d0;--color-ink:#2c2825;--color-graphite:#4a4543;--color-stone:#7a7570;--color-mist:#a8a29e;--color-sage:#6b9080;--color-sage-light:#a4c3b2;--color-sage-pale:#e8f0ec;--color-sage-dark:#4a6b5a;--color-brown:#8b7355;--color-brown-light:#a0826d;--color-brown-pale:#f5ede6;--color-brown-dark:#6b5a45;--color-cocoa:#7b6b5a;--color-tan:#c4a882;--color-tan-light:#d9c9b0;--color-highlight-yellow:#fff3c4;--color-highlight-peach:#ffe4d6;--color-highlight-lavender:#e8e0f0;--color-highlight-mint:#d4ede1;--color-bookmark:#e07a5f;--color-success:#6b9080;--color-warning:#d4a574;--color-error:#c4746e;--color-focus:#6b908080;--color-surface:var(--color-parchment);--color-surface-elevated:var(--color-antique);--color-surface-modal:var(--color-warm-white);--color-surface-sidebar:var(--color-linen);--color-text-primary:var(--color-ink);--color-text-secondary:var(--color-graphite);--color-text-tertiary:var(--color-stone);--color-text-disabled:var(--color-mist);--color-border:var(--color-sand);--color-border-strong:var(--color-stone);--color-accent:var(--color-sage);--color-accent-hover:var(--color-sage-dark);--font-reading:"Literata","Crimson Pro","Georgia",serif;--font-ui:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:"JetBrains Mono","Fira Code","Consolas",monospace;--text-xs:.75rem;--text-sm:.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--leading-tight:1.3;--leading-normal:1.5;--leading-relaxed:1.7;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--reading-measure:65ch;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--shadow-sm:0 1px 2px #2c28250d;--shadow-md:0 4px 12px #2c282514;--shadow-lg:0 8px 24px #2c28251f;--shadow-inset:inset 0 1px 2px #2c28250f;--radius-sm:.25rem;--radius-md:.5rem;--radius-lg:.75rem;--radius-xl:1rem;--radius-full:9999px;--border-thin:1px;--border-medium:2px;--transition-fast:.15s ease-out;--transition-normal:.25s ease-out;--transition-slow:.35s cubic-bezier(.4,0,.2,1);--transition-page:.4s cubic-bezier(.25,.1,.25,1);--z-dropdown:100;--z-sticky:200;--z-modal-backdrop:300;--z-modal:400;--z-popover:500;--z-tooltip:600}[data-theme=eink]{--color-parchment:#fff;--color-warm-white:#fff;--color-linen:#f0f0f0;--color-antique:#e0e0e0;--color-sand:silver;--color-ink:#000;--color-graphite:#303030;--color-stone:#606060;--color-mist:#909090;--color-sage:#404040;--color-sage-light:gray;--color-sage-pale:#e8e8e8;--color-sage-dark:#202020;--color-highlight-yellow:#d0d0d0;--color-highlight-mint:#b0b0b0;--shadow-sm:none;--shadow-md:none;--shadow-lg:none;--transition-fast:0s;--transition-normal:0s;--transition-slow:0s;--transition-page:0s}[data-theme=dark]{--color-parchment:#1a1a2e;--color-warm-white:#222238;--color-linen:#1e1e32;--color-antique:#2a2a40;--color-sand:#3a3a50;--color-ink:#e0ddd5;--color-graphite:#c0bdb5;--color-stone:#9a9790;--color-mist:#6a6760;--color-sage:#6b9080;--color-sage-light:#5a7a6a;--color-sage-pale:#2a3a32;--color-sage-dark:#8ab0a0;--color-brown:#b09070;--color-brown-light:#c0a080;--color-brown-pale:#2a2520;--color-brown-dark:#d0b090;--color-cocoa:#a08a70;--color-tan:#8a7a60;--color-tan-light:#4a4030;--color-highlight-yellow:#4a4520;--color-highlight-peach:#4a3525;--color-highlight-lavender:#35304a;--color-highlight-mint:#253a30;--color-bookmark:#e07a5f;--color-success:#6b9080;--color-warning:#d4a574;--color-error:#d08080;--color-focus:#6b908080;--shadow-sm:0 1px 2px #0003;--shadow-md:0 4px 12px #0000004d;--shadow-lg:0 8px 24px #0006;--shadow-inset:inset 0 1px 2px #0003}[data-theme=sepia]{--color-parchment:#f5ecd7;--color-warm-white:#faf3e3;--color-linen:#efe5cc;--color-antique:#e8dcc4;--color-sand:#d8ccb0;--color-ink:#3d3225;--color-graphite:#5a4e3f;--color-stone:#7a6e5f;--color-mist:#9a8e7f}*,*:before,*:after{box-sizing:border-box}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;font-size:16px}body{font-family:var(--font-ui);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text-primary);background-color:var(--color-surface);margin:0;padding:0}::selection{background-color:var(--color-highlight-yellow);color:inherit}.ai-context ::selection{background-color:var(--color-highlight-mint)}:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}.reading-content{font-family:var(--font-reading);font-size:var(--text-lg);line-height:var(--leading-relaxed);max-width:var(--reading-measure);padding:0 var(--space-4)var(--space-6);margin:0 auto}.reading-content p{margin:0 0 var(--space-4)}.reading-content p+p{text-indent:var(--space-6);margin-top:0}.reading-content h1,.reading-content h2,.reading-content h3,.reading-content h4,.reading-content h5,.reading-content h6{font-family:var(--font-ui);font-weight:var(--font-weight-semibold);line-height:var(--leading-tight);margin:var(--space-8)0 var(--space-4);color:var(--color-text-primary)}.reading-content h1{font-size:var(--text-3xl)}.reading-content h2{font-size:var(--text-2xl)}.reading-content h3{font-size:var(--text-xl)}.chapter-header-image{margin:0 0 var(--space-6);text-align:center}.chapter-header-image img{border-radius:var(--radius-md);box-shadow:var(--shadow-md);display:block;max-width:100%;height:auto;margin:0 auto}.highlight{border-radius:2px;padding:.1em 0}.highlight--yellow{background-color:var(--color-highlight-yellow)}.highlight--peach{background-color:var(--color-highlight-peach)}.highlight--lavender{background-color:var(--color-highlight-lavender)}.highlight--mint{background-color:var(--color-highlight-mint)}.search-highlight{background-color:var(--color-highlight-yellow);animation:highlight-pulse 2s ease-in-out;border-radius:2px;padding:.1em .2em}@keyframes highlight-pulse{0%{background-color:var(--color-ai-primary);color:#fff}50%{background-color:var(--color-ai-primary);color:#fff}to{background-color:var(--color-highlight-yellow);color:inherit}}.btn{display:inline-flex;justify-content:center;align-items: center;gap:var(--space-2);padding:var(--space-3)var(--space-5);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);text-decoration:none;border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-warm-white);color:var(--color-text-primary);cursor:pointer;box-shadow:var(--shadow-sm);transition:background-color var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast);line-height:1}.btn:hover{background-color:var(--color-linen);border-color:var(--color-tan);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn:active{background-color:var(--color-antique);box-shadow:var(--shadow-sm);transform:translateY(0)}.btn:disabled{color:var(--color-text-disabled);background-color:var(--color-linen);box-shadow:none;cursor:not-allowed;border-color:#e8e0d080;transform:none}.btn--primary{background:linear-gradient(180deg,var(--color-brown-light)0%,var(--color-brown)100%);border-color:var(--color-brown-dark);color:#fff;box-shadow:var(--shadow-sm),inset 0 1px 0 #ffffff26}.btn--primary:hover{background:linear-gradient(180deg,var(--color-brown)0%,var(--color-brown-dark)100%);border-color:var(--color-brown-dark);box-shadow:var(--shadow-md),inset 0 1px 0 #ffffff1a;transform:translateY(-2px)}.btn--primary:active{background:var(--color-brown-dark);box-shadow:var(--shadow-sm),inset 0 2px 4px #0000001a;border-color:#5a4a38;transform:translateY(0)}.btn--ai{background:linear-gradient(180deg,var(--color-sage-light)0%,var(--color-sage)100%);border-color:var(--color-sage-dark);color:#fff;box-shadow:var(--shadow-sm),inset 0 1px 0 #ffffff26}.btn--ai:hover{background:linear-gradient(180deg,var(--color-sage)0%,var(--color-sage-dark)100%);border-color:var(--color-sage-dark);box-shadow:var(--shadow-md),inset 0 1px 0 #ffffff1a;transform:translateY(-2px)}.btn--ai:active{background:var(--color-sage-dark);box-shadow:var(--shadow-sm),inset 0 2px 4px #0000001a;border-color:#3a5a4a;transform:translateY(0)}.btn--secondary{background-color:var(--color-warm-white);border-color:var(--color-tan);color:var(--color-brown)}.btn--secondary:hover{background-color:var(--color-brown-pale);border-color:var(--color-brown);color:var(--color-brown-dark)}.btn--secondary:active{background-color:var(--color-tan-light)}.btn--ghost{box-shadow:none;background-color:#0000;border-color:#0000}.btn--ghost:hover{background-color:var(--color-brown-pale);box-shadow:none;color:var(--color-brown-dark);border-color:#0000}.btn--ghost:active{background-color:var(--color-tan-light)}.btn--nav{background-color:var(--color-warm-white);border:var(--border-thin)solid var(--color-tan);color:var(--color-cocoa);padding:var(--space-2)var(--space-4);min-width:70px}.btn--nav:hover{background-color:var(--color-brown-pale);border-color:var(--color-brown);color:var(--color-brown-dark);box-shadow:var(--shadow-md)}.btn--nav:active{background-color:var(--color-tan-light);box-shadow:var(--shadow-sm)}.btn--nav:disabled{background-color:var(--color-linen);border-color:var(--color-sand);color:var(--color-mist)}.btn--pill{border-radius:var(--radius-full);padding:var(--space-2)var(--space-5)}.btn--sm{padding:var(--space-2)var(--space-3);font-size:var(--text-xs)}.btn--lg{padding:var(--space-4)var(--space-6);font-size:var(--text-base)}.card{background-color:var(--color-surface-elevated);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-4);box-shadow:var(--shadow-sm)}.card--interactive{cursor:pointer;transition:box-shadow var(--transition-normal),transform var(--transition-normal),border-color var(--transition-normal)}.card--interactive:hover{box-shadow:var(--shadow-lg);border-color:var(--color-tan);transform:translateY(-3px)}.card--interactive:active{box-shadow:var(--shadow-md);transform:translateY(-1px)}.chat-panel-overlay{position:fixed;display:flex;z-index:var(--z-modal-backdrop);pointer-events:none;background-color:#0000004d;justify-content:flex-end;inset:0}.chat-panel{position:relative;background-color:var(--color-linen);border-left:var(--border-medium)solid var(--color-sage);box-shadow:var(--shadow-lg);display:flex;animation:slideInRight .25s ease-out;pointer-events:auto;flex-direction:column;height:100%}.chat-panel--resizing{user-select:none;transition:none}.chat-panel-resize-handle{position:absolute;cursor:ew-resize;z-index:10;background:0 0;width:6px;transition:background-color .15s ease-out;top:0;bottom:0;left:0}.chat-panel-resize-handle:hover,.chat-panel--resizing .chat-panel-resize-handle{background-color:var(--color-sage)}@keyframes slideInRight{0%{transform:translate(100%)}to{transform:translate(0)}}.chat-panel-header{display:flex;padding:var(--space-3)var(--space-4);background-color:var(--color-sage);color:#fff;flex-shrink:0;justify-content:space-between;align-items: center}.chat-panel-header h2{font-size:var(--text-lg);font-weight:var(--font-weight-semibold);margin:0}.chat-panel-close{color:#fff;font-size:var(--text-2xl);padding:var(--space-1);line-height:1}.chat-panel-close:hover{background-color:#fff3}.chat-messages{overflow-y:auto;padding:var(--space-4);display:flex;gap:var(--space-3);flex-direction:column;flex:1}.chat-empty{text-align:center;padding:var(--space-8)var(--space-4);color:var(--color-text-secondary)}.chat-empty p{margin:0 0 var(--space-2)0}.chat-empty-hint{font-size:var(--text-sm);color:var(--color-text-tertiary);font-style:italic}.chat-message{padding:var(--space-3);border-radius:var(--radius-md);font-family:var(--font-reading);line-height:var(--leading-relaxed);max-width:85%}.chat-message--user{background-color:var(--color-sage-light);color:var(--color-text-primary);border-bottom-right-radius:var(--radius-sm);align-self: flex-end}.chat-message--assistant{background-color:var(--color-warm-white);border:var(--border-thin)solid var(--color-border);border-bottom-left-radius:var(--radius-sm);align-self: flex-start}.chat-message-quote{font-style:italic;font-size:var(--text-sm);color:var(--color-text-secondary);margin-bottom:var(--space-2);padding-left:var(--space-2);border-left:2px solid var(--color-sage)}.chat-message-content{white-space:pre-wrap;word-wrap:break-word}.chat-message--loading{padding:var(--space-3)var(--space-4)}.chat-loading-dots{display:flex;gap:var(--space-1)}.chat-loading-dots span{background-color:var(--color-sage);animation:chatBounce 1.4s ease-in-out infinite both;border-radius:50%;width:8px;height:8px}.chat-loading-dots span:first-child{animation-delay:-.32s}.chat-loading-dots span:nth-child(2){animation-delay:-.16s}@keyframes chatBounce{0%,80%,to{transform:scale(.6);opacity:.5}40%{transform:scale(1);opacity:1}}.chat-error{padding:var(--space-3);margin:0 var(--space-4);border:var(--border-thin)solid var(--color-error);border-radius:var(--radius-md);color:var(--color-error);background-color:#c4746e1a;flex-shrink:0}.chat-error p{font-size:var(--text-sm);margin:0}.chat-input-area{display:flex;gap:var(--space-2);padding:var(--space-3)var(--space-4);border-top:var(--border-thin)solid var(--color-border);background-color:var(--color-sage-pale);flex-shrink:0}.chat-input-area textarea{resize:none;padding:var(--space-2)var(--space-3);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);font-family:var(--font-ui);font-size:var(--text-sm);line-height:var(--leading-normal);background-color:var(--color-warm-white);color:var(--color-text-primary);flex:1;transition:border-color .15s ease-out,box-shadow .15s ease-out}.chat-input-area textarea:focus{outline:none;border-color:var(--color-sage);box-shadow:0 0 0 3px #718c7226}.chat-input-area textarea:disabled{background-color:var(--color-linen);color:var(--color-text-tertiary)}.chat-input-area textarea::placeholder{color:var(--color-text-tertiary)}.chat-input-area{align-items: flex-end}.voice-input-btn{display:flex;background-color:var(--color-sage-pale);color:var(--color-sage-dark,#4a6b4e);cursor:pointer;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items: center;width:36px;height:36px;transition:background-color .15s ease-out,color .15s ease-out,box-shadow .15s ease-out}.voice-input-btn:hover{background-color:var(--color-sage-light,#d4e2d4);color:var(--color-sage,#718c72)}.voice-input-btn:disabled{opacity:.5;cursor:default}.voice-input-btn--recording{background-color:var(--color-error,#c4746e);color:var(--color-warm-white,#fffdf9);animation:voice-pulse 1.2s ease-in-out infinite}.voice-input-btn--recording:hover{color:var(--color-warm-white,#fffdf9);background-color:#b0625c}@keyframes voice-pulse{0%,to{box-shadow:0 0 #c4746e66}50%{box-shadow:0 0 0 8px #c4746e00}}.voice-input-btn--transcribing{background-color:var(--color-sage-light,#d4e2d4);color:var(--color-sage,#718c72)}.voice-input-spinner{border:2px solid var(--color-sage-light,#d4e2d4);border-top-color:var(--color-sage,#718c72);animation:voice-spin .6s linear infinite;border-radius:50%;width:16px;height:16px}@keyframes voice-spin{to{transform:rotate(360deg)}}.chat-message-actions{margin-top:var(--space-1,.25rem)}.tts-btn{display:inline-flex;border-radius:var(--radius-sm,.25rem);color:var(--color-text-tertiary,#7a7570);cursor:pointer;background:0 0;border:none;justify-content:center;align-items: center;width:26px;height:26px;padding:0;transition:color .15s ease-out,background-color .15s ease-out}.tts-btn:hover{color:var(--color-sage,#718c72);background-color:var(--color-sage-pale,#eef2ee)}.tts-btn--playing{color:var(--color-sage,#718c72);animation:tts-pulse 1.5s ease-in-out infinite}@keyframes tts-pulse{0%,to{opacity:1}50%{opacity:.5}}.read-aloud-container{position:relative}.read-aloud-controls{display:flex;align-items: center;gap:var(--space-1)}.read-aloud-btn{display:inline-flex;align-items: center;gap:var(--space-2);padding:var(--space-2)var(--space-3);font-size:var(--text-sm);border:1px solid var(--color-sage);border-radius:var(--radius-md);background:var(--color-sage-pale);color:var(--color-sage-dark);cursor:pointer;transition:all .15s}.read-aloud-btn:hover{background:var(--color-sage-light);color:#fff;border-color:var(--color-sage-dark)}.read-aloud-btn--playing{background:var(--color-sage);color:#fff;border-color:var(--color-sage-dark);animation:read-aloud-pulse 2s ease-in-out infinite}.read-aloud-btn--paused{background:var(--color-sage-pale);color:var(--color-sage-dark);border-color:var(--color-sage);border-style:dashed}.read-aloud-label{white-space:nowrap}@keyframes read-aloud-pulse{0%,to{opacity:1}50%{opacity:.8}}.read-aloud-stop{display:inline-flex;padding:var(--space-1);border:1px solid var(--color-mist);border-radius:var(--radius-sm);background:var(--color-warm-white);color:var(--color-stone);cursor:pointer;justify-content:center;align-items: center;transition:all .15s}.read-aloud-stop:hover{background:var(--color-bookmark);color:#fff;border-color:var(--color-bookmark)}.read-aloud-error{position:absolute;margin-top:var(--space-1);padding:var(--space-1)var(--space-2);color:var(--color-error);border:1px solid var(--color-error);border-radius:var(--radius-sm);font-size:var(--text-xs);word-wrap:break-word;white-space:normal;cursor:pointer;z-index:10;background:#fdf2f1;max-width:100%;top:100%;left:0;right:0}.text-selection-button{animation:fadeIn .15s ease-out}.text-selection-actions{display:flex;gap:var(--space-2);padding:var(--space-2);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-md)}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%,-100%)scale(.9)}to{opacity:1;transform:translate(-50%,-100%)scale(1)}}.text-selection-button .btn--small{padding:var(--space-2)var(--space-3);font-size:var(--text-xs);box-shadow:none}.ai-panel__header{display:flex;padding:var(--space-3)var(--space-4);background-color:var(--color-sage);color:#fff;border-radius:0 var(--radius-lg)0 0;justify-content:space-between;align-items: center}.ai-panel__content{padding:var(--space-4)}.ai-panel__quote{color:var(--color-text-secondary);padding:var(--space-3);background-color:var(--color-warm-white);border-radius:var(--radius-sm);margin-bottom:var(--space-4);font-style:italic}.ai-panel__response{font-family:var(--font-reading);line-height:var(--leading-relaxed);color:var(--color-text-primary)}.settings-overlay{position:fixed;display:flex;z-index:1000;padding:var(--space-4);background-color:#0006;justify-content:center;align-items: center;inset:0}.settings-panel{overflow-y:auto;background-color:var(--color-warm-white);width:100%;max-width:500px;max-height:90vh}.settings-header{display:flex;padding-bottom:var(--space-4);border-bottom:var(--border-thin)solid var(--color-border);margin-bottom:var(--space-4);justify-content:space-between;align-items: center}.settings-header h2{font-size:var(--text-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0}.settings-content{display:flex;gap:var(--space-6);flex-direction:column}.settings-section h3{font-size:var(--text-base);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0 0 var(--space-2)0}.settings-description{font-size:var(--text-sm);color:var(--color-text-secondary);margin:0 0 var(--space-3)0;line-height:var(--leading-relaxed)}.settings-option{display:flex;gap:var(--space-2);margin-bottom:var(--space-3);flex-direction:column}.settings-option label{font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.settings-control{display:flex;align-items: center;gap:var(--space-3)}.settings-control input[type=range]{accent-color:var(--color-brown);flex:1}.settings-value{font-size:var(--text-sm);color:var(--color-text-secondary);text-align:right;min-width:50px}.settings-saved{font-size:var(--text-sm);color:var(--color-success);margin:var(--space-2)0 0 0}.settings-status{font-size:var(--text-sm);margin:var(--space-2)0 0 0}.settings-status--success{color:var(--color-success)}.settings-status--warning{color:var(--color-warning)}.api-key-input-group{display:flex;gap:var(--space-2);flex-direction:column}.api-key-input-group label{font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.input-with-toggle{display:flex;align-items: center;gap:var(--space-2)}.input-with-toggle .input{flex:1}.toggle-visibility{flex-shrink:0}.api-key-actions{display:flex;gap:var(--space-2);margin-top:var(--space-2)}.input{padding:var(--space-2)var(--space-3);font-family:var(--font-ui);font-size:var(--text-sm);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-warm-white);color:var(--color-text-primary);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input:focus{outline:none;border-color:var(--color-brown);box-shadow:0 0 0 3px var(--color-brown-pale)}.input::placeholder{color:var(--color-text-disabled)}.font-family-options{display:flex;gap:var(--space-2)}.theme-options{display:flex;gap:var(--space-3)}.theme-option{display:flex;align-items: center;gap:var(--space-2);padding:var(--space-3);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:border-color var(--transition-fast),background-color var(--transition-fast);background:0 0;flex-direction:column}.theme-option:hover{border-color:var(--color-tan);background-color:var(--color-linen)}.theme-option--active{border-color:var(--color-brown);background-color:var(--color-brown-pale)}.theme-option span{font-size:var(--text-sm);color:var(--color-text-primary)}.theme-preview{border-radius:var(--radius-sm);border:var(--border-thin)solid var(--color-border);width:48px;height:32px}.theme-preview--light{background-color:#fffefa}.theme-preview--sepia{background-color:#f5ecd7}.theme-preview--dark{background-color:#2c2c2c}.top-nav{display:flex;padding:var(--space-3)var(--space-4);background:linear-gradient(180deg,var(--color-warm-white)0%,var(--color-linen)100%);border-bottom:var(--border-thin)solid var(--color-border);margin-left:calc(-1*var(--space-4));margin-right:calc(-1*var(--space-4));margin-top:calc(-1*var(--space-4));margin-bottom:var(--space-4);box-shadow:var(--shadow-sm);position:sticky;z-index:var(--z-sticky);justify-content:space-between;align-items: center;top:0}.top-nav__brand{display:flex;align-items: center;gap:var(--space-3);cursor:pointer;transition:opacity var(--transition-fast);background:0 0;border:none;padding:0}.top-nav__brand:hover{opacity:.8}.top-nav__brand:active{opacity:.6}.top-nav__logo{display:flex;background:linear-gradient(135deg,var(--color-sage)0%,var(--color-sage-dark)100%);border-radius:var(--radius-md);color:#fff;box-shadow:var(--shadow-sm);justify-content:center;align-items: center;width:40px;height:40px}.top-nav__title{font-size:var(--text-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);letter-spacing:-.01em}.settings-btn{display:inline-flex;justify-content:center;align-items: center;gap:var(--space-2);padding:var(--space-2)var(--space-4);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);background:var(--color-warm-white);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-full);cursor:pointer;box-shadow:var(--shadow-sm);transition:background-color var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast)}.settings-btn:hover{background:var(--color-linen);border-color:var(--color-tan);color:var(--color-brown-dark);box-shadow:var(--shadow-md);transform:translateY(-1px)}.settings-btn:active{background:var(--color-antique);box-shadow:var(--shadow-sm);transform:translateY(0)}.settings-btn:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}.settings-btn__icon{display:block;flex-shrink:0;transition:transform .3s}.settings-btn:hover .settings-btn__icon{transform:rotate(45deg)}.settings-btn__text{line-height:1}@media (max-width:480px){.settings-btn__text{display:none}.settings-btn{border-radius:var(--radius-md);width:44px;height:44px;padding:0}}.library{padding:var(--space-4);max-width:1200px;margin:0 auto}.library-header{display:flex;margin-bottom:var(--space-6);justify-content:space-between;align-items: center;gap:var(--space-3);flex-wrap:wrap}.library-header h2{font-size:var(--text-2xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0}.library-actions{display:flex;gap:var(--space-2);align-items: center}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:var(--space-4)}.book-card{display:flex;text-align:center;padding:var(--space-4);position:relative;flex-direction:column;align-items: center}.book-card__content{display:flex;cursor:pointer;flex-direction:column;align-items: center;width:100%}.book-cover{background-color:var(--color-linen);border-radius:var(--radius-sm);display:flex;margin-bottom:var(--space-3);border:var(--border-thin)solid var(--color-border);justify-content:center;align-items: center;width:100px;height:140px}.book-icon{font-size:48px}.book-info{flex:1}.book-title{font-size:var(--text-base);font-weight:var(--font-weight-medium);color:var(--color-text-primary);margin:0 0 var(--space-1)0;line-height:1.3}.book-author{font-size:var(--text-sm);color:var(--color-text-secondary);margin:0}.book-date{font-size:var(--text-xs);color:var(--color-text-tertiary);margin:var(--space-1)0 0 0}.book-delete{position:absolute;top:var(--space-2);right:var(--space-2);opacity:0;transition:opacity var(--transition-fast)}.book-card:hover .book-delete{opacity:1}.empty-library{text-align:center;color:var(--color-text-secondary);padding:var(--space-8)var(--space-4)}.reader{padding:var(--space-4);max-width:800px;margin:0 auto}.reader-header{display:flex;align-items: center;gap:var(--space-4);margin-bottom:var(--space-4);padding-bottom:var(--space-3);border-bottom:var(--border-thin)solid var(--color-border)}.book-title-header{flex:1;min-width:0}.book-title-header h1{font-size:var(--text-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0}.book-title-header .author{font-size:var(--text-sm);color:var(--color-text-secondary)}.reader-header-actions{display:flex;align-items: center;gap:var(--space-3);flex-shrink:0}.reader-back-btn{text-align:left;justify-content:flex-start;padding-left:0}.reader-header--mobile{position:sticky;z-index:20;background-color:var(--color-surface);padding:var(--space-1)0;margin-bottom:var(--space-1);top:0}.reader-header--mobile .reader-header-actions{justify-content:flex-end;gap:var(--space-2);width:auto;margin-left:auto}.reader-header--mobile-compact .btn{padding:var(--space-1)var(--space-3)}.reader-header--mobile-compact .reader-back-btn{text-align:left;padding-left:0;padding-right:var(--space-2);justify-content:flex-start}.reader--mobile-paged{height:calc(100dvh - env(safe-area-inset-top) - env(safe-area-inset-bottom));overflow:hidden}.sync-indicator{font-size:var(--text-sm);opacity:.7}.chapter-nav{display:flex;justify-content:space-between;align-items: center;gap:var(--space-4);margin-bottom:var(--space-4);padding:var(--space-3);background-color:var(--color-linen);border-radius:var(--radius-md);flex-wrap:wrap}.chapter-nav select{padding:var(--space-2)var(--space-3);font-family:var(--font-ui);font-size:var(--text-sm);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-warm-white);cursor:pointer;flex:1;min-width:150px;max-width:300px}.nav-buttons{display:flex;align-items: center;gap:var(--space-2)}.chapter-indicator{font-size:var(--text-sm);color:var(--color-text-secondary);text-align:center;min-width:60px}.reading-content{font-family:var(--font-reading);font-size:var(--text-lg);line-height:var(--leading-relaxed);color:var(--color-text-primary)}.reading-content h1,.reading-content h2,.reading-content h3,.reading-content h4,.reading-content h5,.reading-content h6{font-family:var(--font-ui);margin:var(--space-6)0 var(--space-3)0;color:var(--color-text-primary)}.reading-content p{margin:0 0 var(--space-4)0;text-align:inherit}.reading-content blockquote{margin:var(--space-4)0;padding:var(--space-3)var(--space-4);border-left:4px solid var(--color-tan);background-color:var(--color-linen);font-style:italic}.reading-content pre{margin:var(--space-4)0;padding:var(--space-3);background-color:var(--color-antique);border-radius:var(--radius-md);overflow-x:auto}.reading-content code{font-family:var(--font-mono);font-size:var(--text-sm)}.reading-content--paged{scrollbar-width:none;overscroll-behavior:contain;touch-action:pan-y}.reading-content--paged::-webkit-scrollbar{display:none}.reading-content--paged .paged-chapter-title{break-before:column;margin-top:0}.reading-content--paged .paged-chapter-title:first-child{break-before:auto}.empty-book{text-align:center;color:var(--color-text-secondary);padding:var(--space-8)var(--space-4)}.progress{background-color:var(--color-sand);border-radius:var(--radius-full);overflow:hidden;height:4px}.progress__fill{background-color:var(--color-sage);border-radius:var(--radius-full);transition:width var(--transition-normal);height:100%}.text-primary{color:var(--color-text-primary)}.text-secondary{color:var(--color-text-secondary)}.text-tertiary{color:var(--color-text-tertiary)}.text-disabled{color:var(--color-text-disabled)}.text-accent{color:var(--color-accent)}.text-error{color:var(--color-error)}.text-success{color:var(--color-success)}.text-warning{color:var(--color-warning)}.bg-surface{background-color:var(--color-surface)}.bg-elevated{background-color:var(--color-surface-elevated)}.bg-linen{background-color:var(--color-linen)}.bg-sage-pale{background-color:var(--color-sage-pale)}.font-reading{font-family:var(--font-reading)}.font-ui{font-family:var(--font-ui)}.font-mono{font-family:var(--font-mono)}.text-xs{font-size:var(--text-xs)}.text-sm{font-size:var(--text-sm)}.text-base{font-size:var(--text-base)}.text-lg{font-size:var(--text-lg)}.text-xl{font-size:var(--text-xl)}.text-2xl{font-size:var(--text-2xl)}.text-3xl{font-size:var(--text-3xl)}.p-1{padding:var(--space-1)}.p-2{padding:var(--space-2)}.p-3{padding:var(--space-3)}.p-4{padding:var(--space-4)}.p-6{padding:var(--space-6)}.p-8{padding:var(--space-8)}.m-1{margin:var(--space-1)}.m-2{margin:var(--space-2)}.m-3{margin:var(--space-3)}.m-4{margin:var(--space-4)}.m-6{margin:var(--space-6)}.m-8{margin:var(--space-8)}.gap-1{gap:var(--space-1)}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.app-footer{display:flex;padding:var(--space-6)var(--space-4);margin-top:var(--space-8);border-top:var(--border-thin)solid var(--color-border);background:linear-gradient(180deg,transparent 0%,var(--color-linen)100%);justify-content:center;align-items: center}.app-footer__version{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-text-tertiary);padding:var(--space-1)var(--space-3);background-color:var(--color-antique);border-radius:var(--radius-full);border:var(--border-thin)solid var(--color-border)}.search-container{display:flex;gap:var(--space-3);margin-bottom:var(--space-6);padding:var(--space-4);background-color:var(--color-linen);border-radius:var(--radius-lg);border:var(--border-thin)solid var(--color-border)}.search-input-wrapper{position:relative;display:flex;flex:1;align-items: center}.search-icon{position:absolute;left:var(--space-3);color:var(--color-text-tertiary);pointer-events:none}.search-input{padding:var(--space-2)var(--space-3)var(--space-2)var(--space-10);font-family:var(--font-ui);font-size:var(--text-base);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-warm-white);color:var(--color-text-primary);transition:border-color var(--transition-fast),box-shadow var(--transition-fast);width:100%}.search-input:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-focus)}.search-input::placeholder{color:var(--color-text-tertiary)}.search-clear{position:absolute;right:var(--space-2);padding:var(--space-1);color:var(--color-text-tertiary);cursor:pointer;border-radius:var(--radius-sm);transition:color var(--transition-fast),background-color var(--transition-fast);background:0 0;border:none}.search-clear:hover{color:var(--color-text-primary);background-color:var(--color-sand)}.search-btn{flex-shrink:0}.library-results-bar{display:flex;align-items: center;gap:var(--space-3);margin-bottom:var(--space-3);padding:var(--space-2)0;font-size:var(--text-sm);color:var(--color-text-secondary)}.library-results-bar__count{font-weight:var(--font-weight-medium);color:var(--color-text-tertiary)}.library-results-bar__query-pill{display:inline-flex;align-items: center;gap:var(--space-1);padding:var(--space-1)var(--space-3);background-color:var(--color-brown-pale);border-radius:var(--radius-full);font-size:var(--text-xs);color:var(--color-brown-dark)}.library-results-bar__clear{display:inline-flex;color:var(--color-brown);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast);background:0 0;border:none;border-radius:50%;justify-content:center;align-items: center;width:16px;height:16px;padding:0}.library-results-bar__clear:hover{background-color:var(--color-brown-light);color:#fff}.library-continue{margin-bottom:var(--space-6);padding-bottom:var(--space-6);border-bottom:var(--border-thin)solid var(--color-border)}.library-continue__header{font-size:var(--text-base);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0 0 var(--space-3)0}.library-continue__row{display:flex;gap:var(--space-4);overflow-x:auto;padding-bottom:var(--space-2);scrollbar-width:thin;scrollbar-color:var(--color-tan)transparent}.library-continue__card{cursor:pointer;transition:transform var(--transition-fast);flex-shrink:0;width:120px}.library-continue__card:hover{transform:translateY(-2px)}.library-continue__cover{aspect-ratio:2/3;border-radius:var(--radius-sm);overflow:hidden;background-color:var(--color-linen);margin-bottom:var(--space-2);width:100%}.library-continue__cover img{object-fit:cover;width:100%;height:100%}.library-continue__progress{background-color:var(--color-warm-200,var(--color-border));border-radius:var(--radius-full);margin-bottom:var(--space-2);overflow:hidden;height:6px}.library-continue__progress-fill{background-color:var(--color-accent,var(--color-brown));border-radius:var(--radius-full);transition:width var(--transition-normal);min-width:4px;height:100%}.library-continue__title{display:block;font-size:var(--text-xs);color:var(--color-text-secondary);display:-webkit-box;-webkit-line-clamp:2;overflow:hidden;-webkit-box-orient:vertical;line-height:1.3}.library-empty-state{display:flex;text-align:center;padding:var(--space-10)var(--space-4);align-items: center;gap:var(--space-3);flex-direction:column}.library-empty-state__icon{color:var(--color-stone);margin-bottom:var(--space-2)}.library-empty-state__title{font-size:var(--text-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0}.library-empty-state__hint{font-size:var(--text-sm);color:var(--color-text-secondary);margin:0}.library-empty-state__actions{display:flex;gap:var(--space-3);margin-top:var(--space-2)}.login-overlay{position:fixed;display:flex;z-index:1000;padding:var(--space-4);background-color:#0006;justify-content:center;align-items: center;inset:0}.login-panel{background-color:var(--color-warm-white);width:100%;max-width:400px}.login-header{display:flex;padding-bottom:var(--space-4);border-bottom:var(--border-thin)solid var(--color-border);margin-bottom:var(--space-4);justify-content:space-between;align-items: center}.login-header h2{font-size:var(--text-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0}.login-form{display:flex;gap:var(--space-4);flex-direction:column}.login-error{border:var(--border-thin)solid var(--color-error);color:var(--color-error);padding:var(--space-3);border-radius:var(--radius-sm);font-size:var(--text-sm);background-color:#c4746e1a}.form-group{display:flex;gap:var(--space-2);flex-direction:column}.form-group label{font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.form-hint{font-size:var(--text-xs);color:var(--color-text-tertiary);margin:var(--space-1)0 0 0}.login-footer{margin-top:var(--space-4);padding-top:var(--space-4);border-top:var(--border-thin)solid var(--color-border);text-align:center}.login-footer p{font-size:var(--text-sm);color:var(--color-text-secondary);margin:0}.btn--link{color:var(--color-accent);cursor:pointer;font-size:inherit;font-weight:var(--font-weight-medium);background:0 0;border:none;padding:0}.btn--link:hover{color:var(--color-accent-hover);text-decoration:underline}.btn--full{width:100%}.login-page{display:flex;padding:var(--space-8);flex-direction:column;justify-content:center;align-items: center;min-height:70vh}.login-page__header{text-align:center;margin-bottom:var(--space-8)}.login-page__header h1{font-size:var(--text-3xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin:0 0 var(--space-2)0}.login-page__header p{font-size:var(--text-lg);color:var(--color-text-secondary);margin:0}.login-page .login-overlay{position:static;background:0 0}.login-page .login-panel{box-shadow:var(--shadow-lg);width:100%;max-width:400px}.login-page__guest{margin-top:var(--space-6);text-align:center}.login-page__guest .btn{color:var(--color-text-secondary)}.login-page__guest .btn:hover{color:var(--color-text-primary)}.top-nav__actions{display:flex;align-items: center;gap:var(--space-3)}.top-nav__user{font-size:var(--text-sm);color:var(--color-text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:150px}.top-nav__user--guest{color:var(--color-text-tertiary);font-style:italic}.library-tabs{display:flex;gap:var(--space-1);margin-left:calc(-1*var(--space-4));margin-right:calc(-1*var(--space-4));margin-bottom:var(--space-6);padding:var(--space-2)var(--space-4);background-color:var(--color-linen);border-top:none;border-left:none;border-right:none;border-bottom:var(--border-thin)solid var(--color-border);border-radius:0}.library-tab{padding:var(--space-3)var(--space-4);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);border-radius:var(--radius-md);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast),box-shadow var(--transition-fast);background:0 0;border:none;flex:1}.library-tab:hover{color:var(--color-text-primary);background-color:var(--color-warm-white)}.library-tab--active{color:var(--color-text-primary);background-color:var(--color-warm-white);box-shadow:var(--shadow-sm)}.catalog-browser{margin-top:var(--space-2)}.catalog-search{margin-bottom:var(--space-3);padding:var(--space-4);background-color:var(--color-linen);border-radius:var(--radius-lg);border:var(--border-thin)solid var(--color-border)}.catalog-results-bar{display:flex;align-items: center;gap:var(--space-3);margin-bottom:var(--space-3);padding:var(--space-2)0;font-size:var(--text-sm);color:var(--color-text-secondary)}.catalog-results-bar__count{font-weight:var(--font-weight-medium);color:var(--color-text-tertiary)}.catalog-results-bar__query-pill{display:inline-flex;align-items: center;gap:var(--space-1);padding:var(--space-1)var(--space-3);background-color:var(--color-brown-pale);border-radius:var(--radius-full);font-size:var(--text-xs);color:var(--color-brown-dark)}.catalog-results-bar__clear{display:inline-flex;color:var(--color-brown);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast);background:0 0;border:none;border-radius:50%;justify-content:center;align-items: center;width:16px;height:16px;padding:0}.catalog-results-bar__clear:hover{background-color:var(--color-brown-light);color:#fff}.catalog-genre-chips{position:relative;margin-bottom:var(--space-4)}.catalog-genre-chips__scroll{display:flex;gap:var(--space-2);overflow-x:auto;padding-bottom:var(--space-1);scrollbar-width:none;-ms-overflow-style:none}.catalog-genre-chips__scroll::-webkit-scrollbar{display:none}.catalog-genre-chips__fade{position:absolute;top:0;right:0;bottom:var(--space-1);background:linear-gradient(to left,var(--color-surface)0%,transparent 100%);pointer-events:none;width:40px}.catalog-genre-chip{display:inline-flex;white-space:nowrap;padding:var(--space-2)var(--space-4);border-radius:var(--radius-full);border:1px solid var(--color-sand);background:var(--color-warm-white);color:var(--color-graphite);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast),border-color var(--transition-fast);flex-shrink:0;align-items: center}.catalog-genre-chip:hover{border-color:var(--color-brown-light);background-color:var(--color-brown-pale)}.catalog-genre-chip--active{background:var(--color-brown);color:#fff;border-color:var(--color-brown)}.catalog-genre-chip--active:hover{background:var(--color-brown-dark);border-color:var(--color-brown-dark)}.catalog-popular{margin-bottom:var(--space-5)}.catalog-popular__header{font-size:var(--text-base);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0 0 var(--space-3)}.catalog-popular__row{display:flex;gap:var(--space-3);overflow-x:auto;padding-bottom:var(--space-2);scrollbar-width:none;-ms-overflow-style:none}.catalog-popular__row::-webkit-scrollbar{display:none}.catalog-popular-card{display:flex;gap:var(--space-1);flex-direction:column;flex-shrink:0;width:120px}.catalog-popular-card__cover{border-radius:var(--radius-sm);overflow:hidden;background-color:var(--color-linen);border:var(--border-thin)solid var(--color-border);position:relative;transition:border-color var(--transition-fast),box-shadow var(--transition-fast);width:120px;height:180px}.catalog-popular-card__cover img{object-fit:cover;width:100%;height:100%}.catalog-popular-card__cover-placeholder{display:flex;color:var(--color-mist);justify-content:center;align-items: center;width:100%;height:100%}.catalog-popular-card__title{font-size:var(--text-xs);font-weight:var(--font-weight-medium);color:var(--color-text-primary);display:-webkit-box;-webkit-line-clamp:2;overflow:hidden;-webkit-box-orient:vertical;margin:0;line-height:1.3}.catalog-popular-card--skeleton .catalog-popular-card__cover,.catalog-popular-card__title-skeleton{background:linear-gradient(90deg,color-mix(in srgb,var(--color-border)55%,transparent)25%,color-mix(in srgb,var(--color-border)30%,transparent)37%,color-mix(in srgb,var(--color-border)55%,transparent)63%);animation:catalog-skeleton-shimmer 1.2s ease-in-out infinite;background-size:400% 100%}.catalog-popular-card__title-skeleton{border-radius:var(--radius-sm);width:80%;height:10px}.catalog-unavailable{text-align:center;padding:var(--space-8)var(--space-4);background-color:var(--color-linen);border-radius:var(--radius-lg);border:var(--border-thin)solid var(--color-border)}.catalog-unavailable h3{font-size:var(--text-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0 0 var(--space-2)0}.catalog-unavailable p{color:var(--color-text-secondary);margin:0 0 var(--space-4)0}.catalog-unavailable pre{display:inline-block;padding:var(--space-2)var(--space-3);background-color:var(--color-antique);border-radius:var(--radius-md);font-family:var(--font-mono);font-size:var(--text-sm);color:var(--color-text-primary)}.catalog-empty-state{display:flex;text-align:center;padding:var(--space-10)var(--space-4);align-items: center;gap:var(--space-3);flex-direction:column}.catalog-empty-state__icon{color:var(--color-stone);margin-bottom:var(--space-2)}.catalog-empty-state__title{font-size:var(--text-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0}.catalog-empty-state__hint{font-size:var(--text-sm);color:var(--color-text-secondary);margin:0}.catalog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:var(--space-4);margin-bottom:var(--space-6)}.catalog-card{display:flex;background-color:var(--color-surface-elevated);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;transition:box-shadow var(--transition-normal),transform var(--transition-normal),border-color var(--transition-normal);flex-direction:column}.catalog-card:hover{box-shadow:var(--shadow-md);border-color:var(--color-tan);transform:translateY(-2px)}.catalog-card--skeleton{pointer-events:none}.catalog-card__cover{position:relative;aspect-ratio:2/3;background-color:var(--color-linen);overflow:hidden;width:100%}.catalog-card__cover img{object-fit:cover;width:100%;height:100%}.catalog-card__cover-placeholder{display:flex;background-color:var(--color-linen);justify-content:center;align-items: center;width:100%;height:100%}.catalog-card__book-svg{color:var(--color-mist);opacity:.5}.catalog-card__spine{position:absolute;pointer-events:none;z-index:1;background:linear-gradient(90deg,#2c282526,#0000);width:4px;top:0;bottom:0;left:0}.catalog-card__import-overlay{position:absolute;top:var(--space-2);right:var(--space-2);background:var(--color-brown);color:#fff;display:flex;cursor:pointer;box-shadow:var(--shadow-sm);transition:background-color var(--transition-fast),transform var(--transition-fast),opacity var(--transition-fast);z-index:2;opacity:0;border:none;border-radius:50%;justify-content:center;align-items: center;width:32px;height:32px}.catalog-card:hover .catalog-card__import-overlay{opacity:1}.catalog-card__import-overlay:focus-visible{opacity:1}.catalog-card__import-overlay:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.catalog-card__import-overlay:hover{background:var(--color-brown-dark);transform:scale(1.1)}.catalog-card__import-overlay:disabled{background:var(--color-mist);cursor:not-allowed;transform:none}.catalog-card__imported-badge{position:absolute;bottom:var(--space-2);right:var(--space-2);background:var(--color-success);color:#fff;display:flex;z-index:2;box-shadow:var(--shadow-sm);border-radius:50%;justify-content:center;align-items: center;width:28px;height:28px}.catalog-card__info{padding:var(--space-3);flex:1}.catalog-card__title{font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);margin:0 0 var(--space-1)0;display:-webkit-box;-webkit-line-clamp:2;overflow:hidden;-webkit-box-orient:vertical;line-height:1.3}.catalog-card__author{font-size:var(--text-xs);color:var(--color-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0}.catalog-card__genre-badge{display:inline-flex;padding:0 var(--space-2);margin-top:var(--space-1);border-radius:var(--radius-full);background-color:var(--color-linen);color:var(--color-stone);font-size:var(--text-xs);font-weight:var(--font-weight-medium);align-items: center;height:20px}.catalog-card__skeleton-cover,.catalog-card__skeleton-title,.catalog-card__skeleton-author{background:linear-gradient(90deg,color-mix(in srgb,var(--color-border)55%,transparent)25%,color-mix(in srgb,var(--color-border)30%,transparent)37%,color-mix(in srgb,var(--color-border)55%,transparent)63%);animation:catalog-skeleton-shimmer 1.2s ease-in-out infinite;border-radius:var(--radius-sm);background-size:400% 100%}.catalog-card__skeleton-cover{width:100%;height:100%}.catalog-card__skeleton-title{margin-bottom:var(--space-2);width:80%;height:14px}.catalog-card__skeleton-author{width:60%;height:10px}.catalog-card__spinner{display:inline-block;animation:catalog-spin .6s linear infinite;border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:12px;height:12px}@keyframes catalog-spin{to{transform:rotate(360deg)}}@keyframes catalog-skeleton-shimmer{0%{background-position:100%}to{background-position:0}}.catalog-pagination{display:flex;justify-content:center;align-items: center;gap:var(--space-4);padding:var(--space-4);background-color:var(--color-linen);border-radius:var(--radius-lg);border:var(--border-thin)solid var(--color-border)}.catalog-pagination__pages{display:flex;align-items: center;gap:var(--space-1)}.catalog-pagination__page{display:inline-flex;border:var(--border-thin)solid transparent;border-radius:var(--radius-md);color:var(--color-text-secondary);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast);background:0 0;justify-content:center;align-items: center;width:36px;height:36px}.catalog-pagination__page:hover{background-color:var(--color-brown-pale);color:var(--color-brown-dark)}.catalog-pagination__page--active{background:var(--color-brown);color:#fff;border-color:var(--color-brown);cursor:default}.catalog-pagination__page--active:hover{background:var(--color-brown-dark)}.catalog-pagination__ellipsis{display:inline-flex;color:var(--color-text-tertiary);font-size:var(--text-sm);justify-content:center;align-items: center;width:36px;height:36px}@media (pointer:coarse){.catalog-card__import-overlay{opacity:1;width:44px;height:44px}.catalog-genre-chip{min-height:44px}}.book-detail-overlay{position:fixed;display:flex;z-index:var(--z-modal-backdrop);background-color:#0000004d;justify-content:flex-end;inset:0}.book-detail-panel{position:relative;background-color:var(--color-warm-white);border-left:2px solid var(--color-brown);box-shadow:var(--shadow-lg);display:flex;animation:slideInRight .25s ease-out;overflow:hidden;flex-direction:column;width:480px;max-width:100%;height:100%}.book-detail__header{position:absolute;top:var(--space-2);right:var(--space-3);z-index:2}.book-detail__close{color:var(--color-text-secondary);font-size:var(--text-2xl);padding:var(--space-1);line-height:1}.book-detail__close:hover{color:var(--color-text-primary);background-color:#0000}.book-detail__body{overflow-y:auto;padding:var(--space-5);flex:1}.book-detail__hero{display:flex;gap:var(--space-5);margin-bottom:var(--space-5)}.book-detail__cover{border-radius:var(--radius-md);overflow:hidden;background-color:var(--color-linen);border:var(--border-thin)solid var(--color-border);box-shadow:var(--shadow-md);flex-shrink:0;width:160px;height:240px}.book-detail__cover img{object-fit:cover;width:100%;height:100%}.book-detail__cover-placeholder{display:flex;background-color:var(--color-linen);justify-content:center;align-items: center;width:100%;height:100%}.book-detail__cover-svg{color:var(--color-mist);opacity:.5;width:60%;height:auto}.book-detail__primary{display:flex;gap:var(--space-2);flex-direction:column;flex:1;min-width:0}.book-detail__title{font-family:var(--font-reading);font-size:var(--text-xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);line-height:var(--leading-tight);margin:0}.book-detail__author{font-family:var(--font-ui);font-size:var(--text-sm);color:var(--color-text-secondary);margin:0}.book-detail__genre-badge{display:inline-flex;padding:0 var(--space-2);border-radius:var(--radius-full);background-color:var(--color-linen);color:var(--color-stone);font-size:var(--text-xs);font-weight:var(--font-weight-medium);align-self: flex-start;align-items: center;height:24px}.book-detail__stats{display:flex;gap:var(--space-2);margin-top:var(--space-1);flex-wrap:wrap}.book-detail__stat{display:inline-flex;align-items: center;gap:var(--space-1);font-family:var(--font-ui);font-size:var(--text-xs);color:var(--color-text-tertiary)}.book-detail__stat svg{flex-shrink:0}.book-detail__stat--audio{color:var(--color-sage);font-weight:var(--font-weight-medium)}.book-detail__cta{margin-bottom:var(--space-5)}.book-detail__import-btn{display:inline-flex;justify-content:center;align-items: center;gap:var(--space-2);width:100%}.book-detail__section{margin-bottom:var(--space-5)}.book-detail__section-title{font-family:var(--font-ui);font-size:var(--text-xs);font-weight:var(--font-weight-semibold);color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:.05em;margin:0 0 var(--space-3);padding-bottom:var(--space-2);border-bottom:var(--border-thin)solid var(--color-border)}.book-detail__blurb{font-family:var(--font-reading);font-size:var(--text-base);line-height:var(--leading-relaxed);color:var(--color-text-primary);margin:0}.book-detail__tag-group{margin-bottom:var(--space-3)}.book-detail__tag-group:last-child{margin-bottom:0}.book-detail__tag-label{display:block;font-family:var(--font-ui);font-size:var(--text-xs);font-weight:var(--font-weight-medium);color:var(--color-text-tertiary);margin-bottom:var(--space-1)}.book-detail__tags{display:flex;gap:var(--space-1);flex-wrap:wrap}.book-detail__tag{display:inline-flex;padding:0 var(--space-2);border-radius:var(--radius-full);border:var(--border-thin)solid var(--color-border);background:var(--color-warm-white);color:var(--color-text-secondary);font-family:var(--font-ui);font-size:var(--text-xs);font-weight:var(--font-weight-medium);align-items: center;height:26px}.book-detail__tag--mood{background:var(--color-sage-pale);border-color:var(--color-sage-light);color:var(--color-sage-dark)}.book-detail__tag--theme{background:var(--color-brown-pale);border-color:var(--color-tan-light);color:var(--color-brown-dark)}.book-detail__meta-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-3);margin:0}.book-detail__meta-item{display:flex;flex-direction:column;gap:2px}.book-detail__meta-item dt{font-family:var(--font-ui);font-size:var(--text-xs);color:var(--color-text-tertiary);font-weight:var(--font-weight-medium)}.book-detail__meta-item dd{font-family:var(--font-ui);font-size:var(--text-sm);color:var(--color-text-primary);margin:0}.book-detail__warnings{display:flex;gap:var(--space-1);flex-wrap:wrap}.book-detail__warning-tag{display:inline-flex;padding:0 var(--space-2);border-radius:var(--radius-full);border:var(--border-thin)solid var(--color-warning);background:color-mix(in srgb,var(--color-warning)10%,var(--color-warm-white));color:var(--color-brown-dark);font-family:var(--font-ui);font-size:var(--text-xs);font-weight:var(--font-weight-medium);align-items: center;height:26px}.book-detail__similar-row{display:flex;gap:var(--space-3);overflow-x:auto;padding-bottom:var(--space-2);scrollbar-width:none}.book-detail__similar-row::-webkit-scrollbar{display:none}.book-detail__similar-card{display:flex;gap:var(--space-1);cursor:pointer;text-align:left;background:0 0;border:none;flex-direction:column;flex-shrink:0;width:100px;padding:0}.book-detail__similar-cover{border-radius:var(--radius-sm);overflow:hidden;background-color:var(--color-linen);border:var(--border-thin)solid var(--color-border);transition:border-color var(--transition-fast),box-shadow var(--transition-fast);width:100px;height:150px}.book-detail__similar-card:hover .book-detail__similar-cover{border-color:var(--color-tan);box-shadow:var(--shadow-sm)}.book-detail__similar-cover img{object-fit:cover;width:100%;height:100%}.book-detail__similar-title{font-family:var(--font-ui);font-size:var(--text-xs);font-weight:var(--font-weight-medium);color:var(--color-text-primary);display:-webkit-box;-webkit-line-clamp:2;overflow:hidden;-webkit-box-orient:vertical;margin:0;line-height:1.3}.book-detail__error{display:flex;text-align:center;padding:var(--space-8)var(--space-4);align-items: center;gap:var(--space-3);color:var(--color-text-secondary);flex-direction:column}.book-detail__skeleton{padding-top:var(--space-2)}.book-detail__skeleton-cover{background:linear-gradient(90deg,color-mix(in srgb,var(--color-border)55%,transparent)25%,color-mix(in srgb,var(--color-border)30%,transparent)37%,color-mix(in srgb,var(--color-border)55%,transparent)63%);animation:catalog-skeleton-shimmer 1.2s ease-in-out infinite;border-radius:var(--radius-sm);background-size:400% 100%;width:100%;height:100%}.book-detail__skeleton-title{background:linear-gradient(90deg,color-mix(in srgb,var(--color-border)55%,transparent)25%,color-mix(in srgb,var(--color-border)30%,transparent)37%,color-mix(in srgb,var(--color-border)55%,transparent)63%);animation:catalog-skeleton-shimmer 1.2s ease-in-out infinite;border-radius:var(--radius-sm);background-size:400% 100%;width:85%;height:18px}.book-detail__skeleton-author{background:linear-gradient(90deg,color-mix(in srgb,var(--color-border)55%,transparent)25%,color-mix(in srgb,var(--color-border)30%,transparent)37%,color-mix(in srgb,var(--color-border)55%,transparent)63%);animation:catalog-skeleton-shimmer 1.2s ease-in-out infinite;border-radius:var(--radius-sm);background-size:400% 100%;width:60%;height:14px}.book-detail__skeleton-badge{background:linear-gradient(90deg,color-mix(in srgb,var(--color-border)55%,transparent)25%,color-mix(in srgb,var(--color-border)30%,transparent)37%,color-mix(in srgb,var(--color-border)55%,transparent)63%);animation:catalog-skeleton-shimmer 1.2s ease-in-out infinite;border-radius:var(--radius-full);background-size:400% 100%;width:80px;height:24px}.book-detail__skeleton-cta{margin-bottom:var(--space-5);background:linear-gradient(90deg,color-mix(in srgb,var(--color-border)55%,transparent)25%,color-mix(in srgb,var(--color-border)30%,transparent)37%,color-mix(in srgb,var(--color-border)55%,transparent)63%);animation:catalog-skeleton-shimmer 1.2s ease-in-out infinite;border-radius:var(--radius-md);background-size:400% 100%;width:100%;height:44px}.book-detail__skeleton-blurb{display:flex;gap:var(--space-2);flex-direction:column}.book-detail__skeleton-line{background:linear-gradient(90deg,color-mix(in srgb,var(--color-border)55%,transparent)25%,color-mix(in srgb,var(--color-border)30%,transparent)37%,color-mix(in srgb,var(--color-border)55%,transparent)63%);animation:catalog-skeleton-shimmer 1.2s ease-in-out infinite;border-radius:var(--radius-sm);background-size:400% 100%;width:100%;height:12px}.book-detail__skeleton-line--short{width:45%}.book-detail__skeleton-line--medium{width:70%}.catalog-card{cursor:pointer}.catalog-popular-card{cursor:pointer;transition:transform var(--transition-normal)}.catalog-popular-card:hover{transform:translateY(-2px)}.catalog-popular-card:hover .catalog-popular-card__cover{border-color:var(--color-tan);box-shadow:var(--shadow-md)}.catalog-popular-card__import-overlay{position:absolute;top:var(--space-1);right:var(--space-1);background:var(--color-brown);color:#fff;display:flex;cursor:pointer;box-shadow:var(--shadow-sm);transition:background-color var(--transition-fast),transform var(--transition-fast),opacity var(--transition-fast);z-index:2;opacity:0;-webkit-appearance:none;appearance:none;border:none;border-radius:50%;justify-content:center;align-items: center;width:28px;height:28px;margin:0;padding:0;font-size:0}.catalog-popular-card:hover .catalog-popular-card__import-overlay,.catalog-popular-card__cover:hover>.catalog-popular-card__import-overlay{opacity:1}.catalog-popular-card__import-overlay:focus-visible{opacity:1}.catalog-popular-card__import-overlay:hover{background:var(--color-brown-dark);transform:scale(1.1)}.catalog-popular-card__import-overlay:disabled{background:var(--color-mist);cursor:not-allowed;transform:none}.catalog-popular-card__imported-badge{position:absolute;bottom:var(--space-1);right:var(--space-1);background:var(--color-sage);color:#fff;display:flex;border-radius:50%;justify-content:center;align-items: center;width:24px;height:24px}@media (pointer:coarse){.catalog-popular-card__import-overlay{opacity:1;width:36px;height:36px}}@media (max-width:480px){.book-detail-panel{border-left:none;width:100%}.book-detail__hero{text-align:center;flex-direction:column;align-items: center}.book-detail__primary{align-items: center}.book-detail__genre-badge{align-self: center}.book-detail__stats{justify-content:center}.book-detail__meta-grid{grid-template-columns:1fr}}@media (pointer:coarse){.book-detail__close{min-width:44px;min-height:44px}}.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:var(--space-4);margin-bottom:var(--space-6)}.library-card{display:flex;background-color:var(--color-surface-elevated);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;position:relative;cursor:pointer;transition:box-shadow var(--transition-normal),transform var(--transition-normal),border-color var(--transition-normal);flex-direction:column}.library-card:hover{box-shadow:var(--shadow-md);border-color:var(--color-tan);transform:translateY(-2px)}.library-card--skeleton{pointer-events:none}.library-card__cover{position:relative;aspect-ratio:2/3;background-color:var(--color-linen);overflow:hidden;width:100%}.library-card__cover img{object-fit:cover;width:100%;height:100%}.library-card__cover-placeholder{display:flex;background-color:var(--color-linen);justify-content:center;align-items: center;width:100%;height:100%}.library-card__spine{position:absolute;pointer-events:none;z-index:1;background:linear-gradient(90deg,#2c282526,#0000);width:4px;top:0;bottom:0;left:0}.library-card__book-svg{color:var(--color-mist);opacity:.5}.library-card__info{padding:var(--space-3);flex:1}.library-card__title{font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);margin:0 0 var(--space-1)0;display:-webkit-box;-webkit-line-clamp:2;overflow:hidden;-webkit-box-orient:vertical;line-height:1.3}.library-card__author{font-size:var(--text-xs);color:var(--color-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0}.library-card__progress{background-color:var(--color-warm-200,var(--color-border));overflow:hidden;height:4px}.library-card__progress-fill{background-color:var(--color-accent,var(--color-brown));transition:width var(--transition-normal);min-width:3px;height:100%}.library-card__skeleton-cover,.library-card__skeleton-title,.library-card__skeleton-author{background:linear-gradient(90deg,color-mix(in srgb,var(--color-border)55%,transparent)25%,color-mix(in srgb,var(--color-border)30%,transparent)37%,color-mix(in srgb,var(--color-border)55%,transparent)63%);animation:catalog-skeleton-shimmer 1.2s ease-in-out infinite;border-radius:var(--radius-sm);background-size:400% 100%}.library-card__skeleton-cover{width:100%;height:100%}.library-card__skeleton-title{margin-bottom:var(--space-2);width:80%;height:14px}.library-card__skeleton-author{width:60%;height:10px}.library-card__download{position:absolute;bottom:var(--space-2);right:var(--space-2);opacity:0;transition:opacity var(--transition-fast);border:var(--border-thin)solid var(--color-border);min-width:unset;z-index:1;padding:var(--space-1)var(--space-2)!important;background-color:#fffffff2!important}.library-card:hover .library-card__download,.library-card__download--active{opacity:1}@media (max-width:768px){.library-card__download{opacity:1}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.library-card__download-spinner{animation:spin 1s linear infinite}.library-card__offline-badge{position:absolute;top:var(--space-2);left:var(--space-2);background-color:var(--color-ai-green,#48bb78);color:#fff;display:flex;z-index:1;border-radius:50%;justify-content:center;align-items: center;width:20px;height:20px}.library-card__info-btn{position:absolute;bottom:var(--space-2);left:var(--space-2);color:var(--color-text-secondary);display:flex;cursor:pointer;box-shadow:var(--shadow-sm);transition:background-color var(--transition-fast),opacity var(--transition-fast),color var(--transition-fast);z-index:2;opacity:0;background:#ffffffe6;border:none;border-radius:50%;justify-content:center;align-items: center;width:32px;height:32px}.library-card:hover .library-card__info-btn{opacity:1}.library-card__info-btn:hover{background:var(--color-sage-pale);color:var(--color-sage-dark)}.library-card__info-btn:focus-visible{opacity:1;outline:2px solid var(--color-accent);outline-offset:2px}@media (pointer:coarse){.library-card__info-btn{opacity:1}}@media (max-width:768px){.library-card__info-btn{opacity:1}}.book-info-popover{position:absolute;background:var(--color-surface-modal);border-bottom:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md)var(--radius-md)0 0;box-shadow:var(--shadow-md);padding:var(--space-3);z-index:var(--z-popover);font-family:var(--font-ui);top:0;left:0;right:0}.book-info-popover__header{display:flex;margin-bottom:var(--space-2);justify-content:space-between;align-items: center}.book-info-popover__heading{font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary)}.book-info-popover__close{color:var(--color-text-tertiary);display:flex;cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast);background:0 0;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items: center;width:28px;height:28px}.book-info-popover__close:hover{background:var(--color-linen);color:var(--color-text-primary)}.book-info-popover__close:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}@media (pointer:coarse){.book-info-popover__close{width:44px;height:44px}}.book-info-popover__label{font-size:var(--text-xs);color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:.05em;margin:0 0 2px}.book-info-popover__value{font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);margin:0 0 var(--space-2)}.book-info-popover__value--muted{color:var(--color-text-tertiary);font-weight:var(--font-weight-normal);font-style:italic}.book-info-popover__divider{height:var(--border-thin);background:var(--color-border);margin:var(--space-2)0}.book-info-popover__delete{display:flex;align-items: center;gap:var(--space-2);padding:var(--space-2);border-radius:var(--radius-sm);color:var(--color-error,#c4746e);font-family:var(--font-ui);font-size:var(--text-sm);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast);background:0 0;border:none;width:100%}.book-info-popover__delete:hover{background:var(--color-error-bg,#fee2e2)}.book-info-popover__delete:focus-visible{outline:2px solid var(--color-error,#c4746e);outline-offset:2px}@media (pointer:coarse){.book-info-popover__delete{min-height:44px}}.book-info-popover__skeleton{background:var(--color-linen);border-radius:var(--radius-sm);margin:0 0 var(--space-2);animation:pulse 1.5s ease-in-out infinite;width:60%;height:1em}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.app-container{padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}@media (pointer:coarse){input[type=text],input[type=email],input[type=password],input[type=number],input[type=search],input[type=tel],input[type=url],textarea,select{font-size:var(--text-base)!important}.btn,button{min-width:44px;min-height:44px}.btn--sm{padding:var(--space-2)var(--space-3);min-width:44px;min-height:44px}.chat-panel-close,.settings-btn,.voice-input-btn,.tts-btn{min-width:44px;min-height:44px}.nav-buttons .btn{padding:var(--space-3)var(--space-4)}.book-grid{gap:var(--space-6)}}@media (max-width:480px){.app{padding:var(--space-3)!important}.reading-content{font-size:var(--text-base);padding:0 var(--space-3)var(--space-4)}.reading-content--paged{padding:0}.book-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:var(--space-3)}.book-cover{width:80px;height:112px}.library-header{align-items:stretch;gap:var(--space-3);flex-direction:column}.library-header h2{font-size:var(--text-xl)}.library-actions{justify-content:center}.reader{padding:var(--space-1)var(--space-3)var(--space-2)}.reader-header{align-items: flex-start;gap:var(--space-3);flex-direction:column}.reader-header--mobile{align-items: center;gap:var(--space-1);flex-direction:row}.reader-header-actions{justify-content:space-between;width:100%}.reader-header--mobile .reader-header-actions{justify-content:flex-end;width:auto;margin-left:auto}.chapter-nav{gap:var(--space-3);flex-direction:column}.chapter-nav select{width:100%;max-width:none}.nav-buttons{justify-content:space-between;width:100%}.chat-panel{border-left:none;border-top:var(--border-medium)solid var(--color-sage);max-width:100%;width:100%!important}.chat-panel-resize-handle{display:none}.settings-panel{border-radius:0;max-width:100%;max-height:100vh}.settings-overlay{padding:0}.login-panel{border-radius:0;max-width:100%}.login-overlay{padding:0}.search-container{flex-direction:column}.search-btn{width:100%}.top-nav{padding:var(--space-2)var(--space-3)}.top-nav__title{font-size:var(--text-lg)}.top-nav__logo{width:36px;height:36px}.top-nav__user{display:none}.catalog-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}.catalog-card__info{padding:var(--space-2)}.library-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}.library-card__info{padding:var(--space-2)}.library-continue__card{width:100px}.catalog-pagination{gap:var(--space-2);flex-wrap:wrap}.catalog-pagination__pages{display:none}}@media (min-width:481px) and (max-width:768px){.library{padding:var(--space-4)}.book-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}.chat-panel{width:320px;min-width:280px}.reader{padding:var(--space-4)}.reading-content{font-size:var(--text-lg)}}@media (min-width:769px) and (max-width:1024px){.library{max-width:960px}.reader{max-width:720px}.chat-panel{width:360px}}@media (min-width:1025px){.chat-panel{width:400px;max-width:50vw}}html,body{overflow-x:hidden;overscroll-behavior-x:none;margin:0;padding:0}.library,.reader{overflow-x:clip;max-width:100%}.reading-content img{max-width:100%;height:auto}.reading-content .content-image{margin:var(--space-4)0;text-align:center}.read-aloud-btn--resumable{background:var(--color-sage-pale);border-color:var(--color-sage);color:var(--color-sage-dark)}.read-aloud-btn--resumable:hover{background:var(--color-sage-light);color:#fff;border-color:var(--color-sage-dark)}.read-aloud-pulse{position:absolute;background-color:var(--color-sage);animation:pulse 2s ease-in-out infinite;border-radius:50%;width:8px;height:8px;top:8px;right:8px}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.2)}}.read-aloud-btn{position:relative}.read-aloud-btn--unlock{background:linear-gradient(135deg,var(--color-sage)0%,var(--color-sage-dark)100%);color:#fff;border-color:var(--color-sage-dark);animation:unlock-pulse 2s ease-in-out infinite}.read-aloud-btn--unlock:hover{background:linear-gradient(135deg,var(--color-sage-dark)0%,#3a5a4a 100%)}@keyframes unlock-pulse{0%,to{box-shadow:0 0 #6b908066}50%{box-shadow:0 0 0 8px #6b908000}}.read-aloud-btn--loading{opacity:.8;cursor:wait}.read-aloud-spinner{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}[data-high-contrast=true]{--color-text-primary:#000;--color-text-secondary:#1a1a1a;--color-text-tertiary:#333;--color-border:#555;--color-border-strong:#000}[data-theme=dark][data-high-contrast=true]{--color-text-primary:#fff;--color-text-secondary:#f0f0f0;--color-text-tertiary:#e0e0e0;--color-border:#aaa;--color-border-strong:#fff}[data-reduced-motion=true],[data-reduced-motion=true] *{--transition-fast:0s!important;--transition-normal:0s!important;--transition-slow:0s!important;--transition-page:0s!important;animation-duration:0s!important;transition-duration:0s!important}.dyslexia-font{--font-reading:"OpenDyslexic","Comic Sans MS",sans-serif}.admin-layout{display:flex;background:var(--color-linen);min-height:100vh}.admin-sidebar{background:var(--color-parchment);border-right:1px solid var(--color-border);display:flex;box-shadow:var(--shadow-sm);flex-direction:column;flex-shrink:0;width:240px}.admin-sidebar__header{padding:var(--space-6);border-bottom:1px solid var(--color-border);background:linear-gradient(180deg,var(--color-warm-white)0%,var(--color-parchment)100%)}.admin-sidebar__title{font-size:var(--text-xl);color:var(--color-text-primary);margin:0;font-weight:600}.admin-sidebar__nav{padding:var(--space-4);display:flex;gap:var(--space-2);flex-direction:column;flex:1}.admin-sidebar__footer{padding:var(--space-4);border-top:1px solid var(--color-border)}.admin-nav-item{display:flex;align-items: center;gap:var(--space-3);padding:var(--space-3)var(--space-4);color:var(--color-text-secondary);font-size:var(--text-sm);cursor:pointer;border-radius:var(--radius-md);transition:all var(--transition-fast);text-align:left;background:0 0;border:none;width:100%}.admin-nav-item:hover{background:var(--color-linen);color:var(--color-text-primary);transform:translate(2px)}.admin-nav-item--active{background:var(--color-sage-pale);color:var(--color-sage-dark);box-shadow:var(--shadow-sm);font-weight:500}.admin-nav-item__icon{display:inline-flex;justify-content:center;align-items: center;width:20px;height:20px}.admin-nav-item__icon:before{content:"";mask-size:contain;mask-repeat:no-repeat;mask-position:center;background:currentColor;width:16px;height:16px}.admin-nav-item__icon[data-icon=home]:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z'/%3E%3Cpolyline points='9 22 9 12 15 12 15 22'/%3E%3C/svg%3E")}.admin-nav-item__icon[data-icon=key]:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M21 2l-2 2m-7.61 7.61a5.5 5.5 0 1 1-7.778 7.778 5.5 5.5 0 0 1 7.777-7.777zm0 0L15.5 7.5m0 0l3 3L22 7l-3-3m-3.5 3.5L19 4'/%3E%3C/svg%3E")}.admin-nav-item__icon[data-icon=users]:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='9' cy='7' r='4'/%3E%3Cpath d='M23 21v-2a4 4 0 0 0-3-3.87'/%3E%3Cpath d='M16 3.13a4 4 0 0 1 0 7.75'/%3E%3C/svg%3E")}.admin-nav-item__icon[data-icon=list]:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='8' y1='6' x2='21' y2='6'/%3E%3Cline x1='8' y1='12' x2='21' y2='12'/%3E%3Cline x1='8' y1='18' x2='21' y2='18'/%3E%3Cline x1='3' y1='6' x2='3.01' y2='6'/%3E%3Cline x1='3' y1='12' x2='3.01' y2='12'/%3E%3Cline x1='3' y1='18' x2='3.01' y2='18'/%3E%3C/svg%3E")}.admin-nav-item__icon[data-icon=chart]:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='12' y1='20' x2='12' y2='10'/%3E%3Cline x1='18' y1='20' x2='18' y2='4'/%3E%3Cline x1='6' y1='20' x2='6' y2='16'/%3E%3C/svg%3E")}.admin-nav-item__icon[data-icon=plus]:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='12' y1='5' x2='12' y2='19'/%3E%3Cline x1='5' y1='12' x2='19' y2='12'/%3E%3C/svg%3E")}.admin-logout-btn{padding:var(--space-3)var(--space-4);border:1px solid var(--color-border);color:var(--color-text-secondary);font-size:var(--text-sm);cursor:pointer;border-radius:var(--radius-md);transition:all var(--transition-fast);background:0 0;width:100%}.admin-logout-btn:hover{background:var(--color-linen);color:var(--color-text-primary);border-color:var(--color-tan)}.admin-main{display:flex;position:relative;flex-direction:column;flex:1;min-width:0}.admin-content{padding:var(--space-8);overflow-y:auto;flex:1}.admin-session-warning{color:var(--color-warning);padding:var(--space-3)var(--space-6);display:flex;font-size:var(--text-sm);border-bottom:1px solid var(--color-warning);background:#d4a5741a;justify-content:space-between;align-items: center}.admin-error-banner{color:var(--color-error);padding:var(--space-3)var(--space-6);display:flex;font-size:var(--text-sm);border-bottom:1px solid var(--color-error);background:#c4746e1a;justify-content:space-between;align-items: center}.admin-loading-overlay{position:absolute;display:flex;z-index:100;background:#ffffffe6;justify-content:center;align-items: center;inset:0}.admin-loading-spinner{border:3px solid var(--color-border);border-top-color:var(--color-sage);animation:spin .8s linear infinite;border-radius:50%;width:32px;height:32px}@keyframes spin{to{transform:rotate(360deg)}}.admin-page-header{display:flex;margin-bottom:var(--space-8);justify-content:space-between;align-items: center}.admin-page-title{font-size:var(--text-3xl);color:var(--color-text-primary);margin:0;font-weight:600}.admin-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-6);margin-bottom:var(--space-8)}.admin-stat-card{background:var(--color-warm-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-sm);transition:all var(--transition-normal)}.admin-stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.admin-stat-card__header{display:flex;align-items: center;gap:var(--space-3);margin-bottom:var(--space-4)}.admin-stat-card__icon{color:var(--color-sage);width:24px;height:24px}.admin-stat-card__icon:before{content:"";mask-size:contain;mask-repeat:no-repeat;mask-position:center;display:block;background:currentColor;width:24px;height:24px}.admin-stat-card__icon[data-icon=users]:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='9' cy='7' r='4'/%3E%3Cpath d='M23 21v-2a4 4 0 0 0-3-3.87'/%3E%3Cpath d='M16 3.13a4 4 0 0 1 0 7.75'/%3E%3C/svg%3E")}.admin-stat-card__icon[data-icon=key]:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M21 2l-2 2m-7.61 7.61a5.5 5.5 0 1 1-7.778 7.778 5.5 5.5 0 0 1 7.777-7.777zm0 0L15.5 7.5m0 0l3 3L22 7l-3-3m-3.5 3.5L19 4'/%3E%3C/svg%3E")}.admin-stat-card__icon[data-icon=chart]:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='12' y1='20' x2='12' y2='10'/%3E%3Cline x1='18' y1='20' x2='18' y2='4'/%3E%3Cline x1='6' y1='20' x2='6' y2='16'/%3E%3C/svg%3E")}.admin-stat-card__title{font-size:var(--text-sm);color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em;margin:0;font-weight:500}.admin-stat-card__value{font-size:var(--text-3xl);color:var(--color-sage-dark);margin-bottom:var(--space-4);font-weight:700;line-height:1.2}.admin-stat-card__details{display:flex;gap:var(--space-2);padding-top:var(--space-4);border-top:1px solid var(--color-border);flex-direction:column}.admin-stat-detail{display:flex;font-size:var(--text-sm);justify-content:space-between}.admin-stat-detail__label{color:var(--color-text-secondary)}.admin-stat-detail__value{color:var(--color-text-primary);font-weight:500}.admin-stat-detail__value--warning{color:var(--color-warning)}.admin-quick-actions{margin-top:var(--space-8)}.admin-section-title{font-size:var(--text-xl);color:var(--color-text-primary);margin:0 0 var(--space-4)0;font-weight:600}.admin-quick-actions__grid{display:flex;gap:var(--space-4);flex-wrap:wrap}.admin-quick-action{display:flex;align-items: center;gap:var(--space-3);padding:var(--space-4)var(--space-6);background:var(--color-warm-white);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-normal);color:var(--color-text-primary);box-shadow:var(--shadow-sm)}.admin-quick-action:hover{border-color:var(--color-sage);box-shadow:var(--shadow-md);background:var(--color-sage-pale);transform:translateY(-2px)}.admin-quick-action__icon:before{content:"";mask-size:contain;mask-repeat:no-repeat;mask-position:center;display:block;background:currentColor;width:20px;height:20px}.admin-quick-action__icon[data-icon=plus]:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='12' y1='5' x2='12' y2='19'/%3E%3Cline x1='5' y1='12' x2='19' y2='12'/%3E%3C/svg%3E")}.admin-quick-action__icon[data-icon=users]:before{mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpath d='M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='9' cy='7' r='4'/%3E%3Cpath d='M23 21v-2a4 4 0 0 0-3-3.87'/%3E%3Cpath d='M16 3.13a4 4 0 0 1 0 7.75'/%3E%3C/svg%3E")}.admin-table-container{background:var(--color-warm-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}.admin-table{border-collapse:collapse;width:100%}.admin-table th,.admin-table td{padding:var(--space-3)var(--space-4);text-align:left;border-bottom:1px solid var(--color-border)}.admin-table th{background:var(--color-linen);font-size:var(--text-xs);color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em;font-weight:600}.admin-table td{font-size:var(--text-sm);color:var(--color-text-primary)}.admin-table tbody tr:hover{background:var(--color-sage-pale)}.admin-table tbody tr:last-child td{border-bottom:none}.admin-table__row--muted{opacity:.6}.admin-table__row--selected{background:var(--color-sage-pale)}.admin-table__empty{text-align:center;color:var(--color-text-secondary);padding:var(--space-8)!important}.admin-badge{display:inline-block;padding:var(--space-2)var(--space-3);font-size:var(--text-xs);border-radius:var(--radius-sm);font-weight:500}.admin-badge--success{color:var(--color-success);background:#6b90801a}.admin-badge--warning{color:var(--color-warning);background:#d4a5741a}.admin-badge--danger{color:var(--color-error);background:#c4746e1a}.admin-badge--info{background:var(--color-sage-pale);color:var(--color-sage-dark)}.admin-key-code{font-family:var(--font-mono);font-size:var(--text-sm);background:var(--color-linen);padding:var(--space-2)var(--space-3);border-radius:var(--radius-sm);border:1px solid var(--color-border)}.admin-action-buttons{display:flex;gap:var(--space-2)}.admin-muted-text{color:var(--color-text-secondary);font-size:var(--text-sm)}.admin-dialog-overlay{position:fixed;display:flex;z-index:1000;background:#2c282599;justify-content:center;align-items: center;inset:0}.admin-dialog{background:var(--color-warm-white);border-radius:var(--radius-lg);padding:var(--space-8);box-shadow:var(--shadow-lg);width:100%;max-width:400px}.admin-dialog__title{font-size:var(--text-xl);color:var(--color-text-primary);margin:0 0 var(--space-4)0;font-weight:600}.admin-dialog__text{font-size:var(--text-sm);color:var(--color-text-secondary);margin:0 0 var(--space-6)0;line-height:var(--leading-relaxed)}.admin-dialog__actions{display:flex;justify-content:flex-end;gap:var(--space-3);margin-top:var(--space-6)}.admin-form{display:flex;gap:var(--space-4);flex-direction:column}.admin-form__field{display:flex;gap:var(--space-2);flex-direction:column}.admin-form__label{font-size:var(--text-sm);color:var(--color-text-secondary);font-weight:500}.admin-form__input,.admin-form__select{padding:var(--space-3)var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--text-sm);background:var(--color-warm-white);color:var(--color-text-primary);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.admin-form__input:focus,.admin-form__select:focus{outline:none;border-color:var(--color-sage);box-shadow:0 0 0 3px var(--color-sage-pale)}.admin-created-keys{border:1px solid var(--color-success);border-radius:var(--radius-lg);padding:var(--space-6);margin-bottom:var(--space-6);background:#6b90801a}.admin-created-keys__header{display:flex;margin-bottom:var(--space-4);justify-content:space-between;align-items: center}.admin-created-keys__header h3{color:var(--color-success);margin:0}.admin-created-keys__list{display:flex;gap:var(--space-3);margin-bottom:var(--space-4);flex-direction:column}.admin-created-key{display:flex;padding:var(--space-3);background:var(--color-warm-white);border-radius:var(--radius-sm);border:1px solid var(--color-border);justify-content:space-between;align-items: center}.admin-created-key__value{font-family:var(--font-mono);font-size:var(--text-sm)}.admin-filter-tabs{display:flex;gap:var(--space-2)}.admin-filter-tab{padding:var(--space-2)var(--space-4);border:1px solid var(--color-border);color:var(--color-text-secondary);font-size:var(--text-sm);cursor:pointer;border-radius:var(--radius-md);transition:all var(--transition-fast);background:0 0}.admin-filter-tab:hover{background:var(--color-linen)}.admin-filter-tab--active{background:var(--color-sage);border-color:var(--color-sage);color:#fff}.admin-users-layout{display:grid;grid-template-columns:1fr 320px;gap:var(--space-6)}.admin-users-layout .admin-table-container{min-width:0}.admin-user-details{background:var(--color-warm-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);position:sticky;top:var(--space-6);box-shadow:var(--shadow-sm);height:-moz-fit-content;height:fit-content}.admin-user-details__header{display:flex;margin-bottom:var(--space-6);padding-bottom:var(--space-4);border-bottom:1px solid var(--color-border);justify-content:space-between;align-items: center}.admin-user-details__header h3{font-size:var(--text-base);word-break:break-all;margin:0}.admin-user-details__section{margin-bottom:var(--space-6)}.admin-user-details__section h4{font-size:var(--text-sm);color:var(--color-text-secondary);margin:0 0 var(--space-3)0;text-transform:uppercase;letter-spacing:.05em;font-weight:600}.admin-user-banned-info{display:flex;gap:var(--space-2);flex-direction:column}.admin-user-banned-info p{font-size:var(--text-sm);color:var(--color-text-secondary);margin:0}.admin-usage-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-3)}.admin-usage-item{display:flex;gap:var(--space-2);padding:var(--space-3);background:var(--color-linen);border-radius:var(--radius-sm);flex-direction:column}.admin-usage-item__label{font-size:var(--text-xs);color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em}.admin-usage-item__value{font-size:var(--text-sm);color:var(--color-text-primary);font-weight:600}.admin-pagination{display:flex;justify-content:center;align-items: center;gap:var(--space-4);padding:var(--space-4);border-top:1px solid var(--color-border)}.admin-pagination__info{font-size:var(--text-sm);color:var(--color-text-secondary)}.admin-audit-entries{display:flex;gap:var(--space-3);flex-direction:column}.admin-audit-empty{text-align:center;color:var(--color-text-secondary);padding:var(--space-8);background:var(--color-warm-white);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.admin-audit-entry{background:var(--color-warm-white);border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);transition:all var(--transition-normal)}.admin-audit-entry:hover{box-shadow:var(--shadow-md)}.admin-audit-entry--expanded{border-color:var(--color-sage)}.admin-audit-entry__header{display:flex;padding:var(--space-4);cursor:pointer;transition:background var(--transition-fast);justify-content:space-between;align-items: center}.admin-audit-entry__header:hover{background:var(--color-sage-pale)}.admin-audit-entry__main{display:flex;align-items: center;gap:var(--space-4)}.admin-audit-action{font-size:var(--text-sm);color:var(--color-text-primary);font-weight:500}.admin-audit-action--success{color:var(--color-success)}.admin-audit-action--warning{color:var(--color-warning)}.admin-audit-action--danger{color:var(--color-error)}.admin-audit-target{font-size:var(--text-xs);color:var(--color-text-secondary);font-family:var(--font-mono)}.admin-audit-entry__meta{display:flex;align-items: center;gap:var(--space-4)}.admin-audit-time,.admin-audit-expand-icon{font-size:var(--text-xs);color:var(--color-text-secondary)}.admin-audit-entry__details{padding:var(--space-4);border-top:1px solid var(--color-border);background:var(--color-linen)}.admin-audit-detail-row{display:flex;gap:var(--space-4);margin-bottom:var(--space-3);font-size:var(--text-sm)}.admin-audit-detail-row:last-child{margin-bottom:0}.admin-audit-detail-label{color:var(--color-text-secondary);min-width:100px}.admin-audit-detail-value{color:var(--color-text-primary)}.admin-audit-detail-value--truncate{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:400px}.admin-audit-detail-json{font-family:var(--font-mono);font-size:var(--text-xs);background:var(--color-warm-white);padding:var(--space-3);border-radius:var(--radius-sm);overflow-x:auto;border:1px solid var(--color-border);margin:0}.admin-loading{display:flex;padding:var(--space-8);color:var(--color-text-secondary);justify-content:center;align-items: center}.admin-loading-page{display:flex;background:var(--color-linen);justify-content:center;align-items: center;gap:var(--space-6);flex-direction:column;min-height:100vh}.admin-loading-page p{color:var(--color-text-secondary);font-size:var(--text-sm)}.admin-access-denied{display:flex;background:var(--color-linen);justify-content:center;align-items: center;gap:var(--space-4);text-align:center;padding:var(--space-8);flex-direction:column;min-height:100vh}.admin-access-denied h2{font-size:var(--text-3xl);color:var(--color-text-primary);margin:0;font-weight:600}.admin-access-denied p{color:var(--color-text-secondary);font-size:var(--text-base);margin:0 0 var(--space-6)0}@media (max-width:1024px){.admin-users-layout{grid-template-columns:1fr}.admin-user-details{position:static}}@media (max-width:768px){.admin-sidebar{width:60px}.admin-sidebar__title,.admin-nav-item__label{display:none}.admin-nav-item{padding:var(--space-4);justify-content:center}.admin-logout-btn{padding:var(--space-4);font-size:0}.admin-logout-btn:before{content:"←";font-size:var(--text-lg)}.admin-page-header{align-items: flex-start;gap:var(--space-4);flex-direction:column}.admin-stats-grid{grid-template-columns:1fr}.admin-quick-actions__grid{flex-direction:column}.admin-table-container{overflow-x:auto}.admin-audit-filters,.admin-form__select{width:100%}}.settings-page{display:flex;min-height:100vh;background:var(--color-surface);color:var(--color-text-primary);flex-direction:column;min-height:100dvh}.settings-page .settings-header{display:flex;align-items: center;gap:var(--space-4);padding:var(--space-3)var(--space-4);border-bottom:var(--border-thin)solid var(--color-border);background:linear-gradient(180deg,var(--color-warm-white)0%,var(--color-linen)100%);position:sticky;z-index:var(--z-sticky);box-shadow:var(--shadow-sm);top:0}.settings-page .settings-header .btn{flex-shrink:0}.settings-page .settings-header__back-btn{text-align:left;justify-content:flex-start;padding-left:0}.settings-page .settings-header__title{text-align:center;font-family:var(--font-ui);font-size:var(--text-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);letter-spacing:-.01em;flex:1;margin:0}.settings-page .settings-header__spacer{flex-shrink:0;width:80px}.settings-body{display:flex;flex-direction:column;flex:1;min-height:0}.settings-content{overflow-y:auto;scroll-behavior:smooth;padding:var(--space-6)var(--space-4);flex:1;max-width:720px;min-height:0}.settings-footer{display:flex;padding:var(--space-6)var(--space-4);border-top:var(--border-thin)solid var(--color-border);background:linear-gradient(180deg,transparent 0%,var(--color-linen)100%);justify-content:center;align-items: center}@media (min-width:768px){.settings-body{display:flex;flex-flow:wrap}.settings-body>.settings-nav{flex-shrink:0;width:100%}.settings-content{padding:var(--space-6);flex:1;min-width:0;max-width:720px;margin:0 auto}}@media (min-width:1024px){.settings-page .settings-header{padding:var(--space-3)var(--space-8)}.settings-body{flex-wrap:nowrap}.settings-body>.settings-nav{width:auto}.settings-content{padding:var(--space-8);max-width:720px}}.settings-section{margin-bottom:var(--space-10);scroll-margin-top:80px}.settings-section__title{font-family:var(--font-ui);font-size:var(--text-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0 0 var(--space-6)0;padding-bottom:var(--space-3);border-bottom:var(--border-thin)solid var(--color-border)}.settings-section__group{margin-bottom:var(--space-5)}.settings-section__label{display:block;font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);margin-bottom:var(--space-2)}.settings-section__description{font-size:var(--text-sm);color:var(--color-text-secondary);margin:var(--space-1)0 var(--space-3)0;line-height:var(--leading-relaxed)}.settings-nav{display:flex;overflow-x:auto;gap:var(--space-1);padding:var(--space-2)var(--space-4);border-bottom:var(--border-thin)solid var(--color-border);background:var(--color-linen);-webkit-overflow-scrolling:touch;scrollbar-width:none;z-index:9}.settings-nav::-webkit-scrollbar{display:none}.settings-nav__item{padding:var(--space-3)var(--space-4);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);cursor:pointer;border-radius:var(--radius-md);white-space:nowrap;transition:color var(--transition-fast),background-color var(--transition-fast),box-shadow var(--transition-fast);background:0 0;border:none;flex-shrink:0;min-height:44px}.settings-nav__item:hover{color:var(--color-text-primary);background:var(--color-warm-white)}.settings-nav__item--active{color:var(--color-text-primary);background:var(--color-warm-white);box-shadow:var(--shadow-sm)}@media (min-width:1024px){.settings-nav{overflow-x:visible;border-bottom:none;border-right:var(--border-thin)solid var(--color-border);padding:var(--space-4);overflow-y:auto;position:sticky;background:var(--color-surface);flex-direction:column;flex-shrink:0;align-self: flex-start;width:200px;min-width:200px;height:-moz-fit-content;height:fit-content;max-height:calc(100vh - 57px);top:0}.settings-nav__item{text-align:left;border-radius:var(--radius-md);padding:var(--space-3)var(--space-4)}}.range-slider{margin-bottom:var(--space-4)}.range-slider__header{display:flex;margin-bottom:var(--space-2);justify-content:space-between;align-items: center}.range-slider__label{font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.range-slider__value{font-family:var(--font-mono);font-size:var(--text-sm);color:var(--color-brown);font-weight:var(--font-weight-semibold)}.range-slider__controls{display:flex;align-items: center;gap:var(--space-3)}.range-slider__input{-webkit-appearance:none;appearance:none;background:var(--color-sand);border-radius:var(--radius-full);outline:none;cursor:pointer;flex:1;height:6px}.range-slider__input::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;background:var(--color-brown);cursor:pointer;border:2px solid var(--color-warm-white);box-shadow:var(--shadow-sm);transition:transform var(--transition-fast);border-radius:50%;width:20px;height:20px}.range-slider__input::-webkit-slider-thumb:hover{transform:scale(1.15)}.range-slider__input::-moz-range-thumb{background:var(--color-brown);cursor:pointer;border:2px solid var(--color-warm-white);box-shadow:var(--shadow-sm);border-radius:50%;width:20px;height:20px}.range-slider__stepper{display:inline-flex;border-radius:var(--radius-md);border:var(--border-thin)solid var(--color-border);background:var(--color-warm-white);color:var(--color-text-primary);font-size:var(--text-base);font-weight:var(--font-weight-semibold);cursor:pointer;transition:background-color var(--transition-fast),border-color var(--transition-fast),box-shadow var(--transition-fast);box-shadow:var(--shadow-sm);flex-shrink:0;justify-content:center;align-items: center;width:36px;min-width:44px;height:36px;min-height:44px}.range-slider__stepper:hover{background:var(--color-brown-pale);border-color:var(--color-tan);box-shadow:var(--shadow-md)}.range-slider__stepper:active{background:var(--color-tan-light);box-shadow:var(--shadow-sm)}.range-slider__stepper:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}@media (pointer:coarse){.range-slider__input::-webkit-slider-thumb{width:28px;height:28px}.range-slider__input::-moz-range-thumb{width:28px;height:28px}.range-slider__stepper{width:44px;height:44px}}.segmented-control{display:inline-flex;border-radius:var(--radius-md);border:var(--border-thin)solid var(--color-border);overflow:hidden;background:var(--color-warm-white);box-shadow:var(--shadow-sm);width:100%}.segmented-control__option{padding:var(--space-2)var(--space-3);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast);text-align:center;display:inline-flex;white-space:nowrap;background:0 0;border:none;flex:1;justify-content:center;align-items: center;min-height:44px}.segmented-control__option:not(:last-child){border-right:var(--border-thin)solid var(--color-border)}.segmented-control__option:hover{background:var(--color-brown-pale);color:var(--color-text-primary)}.segmented-control__option--active{background:linear-gradient(180deg,var(--color-brown-light)0%,var(--color-brown)100%);color:#fff;font-weight:var(--font-weight-semibold)}.segmented-control__option--active:hover{background:linear-gradient(180deg,var(--color-brown)0%,var(--color-brown-dark)100%)}.toggle-switch{display:flex;justify-content:space-between;align-items: flex-start;gap:var(--space-4);padding:var(--space-3)0;cursor:pointer;min-height:44px}.toggle-switch__text{flex:1}.toggle-switch__label{font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);display:block}.toggle-switch__description{font-size:var(--text-xs);color:var(--color-text-secondary);margin-top:var(--space-1);display:block;line-height:var(--leading-normal)}.toggle-switch__track{position:relative;background:var(--color-sand);transition:background-color var(--transition-fast);border-radius:14px;flex-shrink:0;width:48px;height:28px;margin-top:2px}.toggle-switch__track--checked{background:var(--color-sage)}.toggle-switch__thumb{position:absolute;box-shadow:var(--shadow-sm);transition:transform var(--transition-fast);background:#fff;border-radius:50%;width:22px;height:22px;top:3px;left:3px}.toggle-switch__track--checked .toggle-switch__thumb{transform:translate(20px)}@media (pointer:coarse){.toggle-switch__track{border-radius:16px;width:52px;height:32px}.toggle-switch__thumb{width:26px;height:26px;top:3px;left:3px}.toggle-switch__track--checked .toggle-switch__thumb{transform:translate(20px)}}.preset-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-3);margin-bottom:var(--space-4)}.preset-card{display:flex;align-items: center;gap:var(--space-1);padding:var(--space-3);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);background:var(--color-warm-white);cursor:pointer;transition:border-color var(--transition-fast),background-color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast);text-align:center;box-shadow:var(--shadow-sm);flex-direction:column;min-height:44px}.preset-card:hover{border-color:var(--color-tan);box-shadow:var(--shadow-md);transform:translateY(-1px)}.preset-card--active{border-color:var(--color-brown);background:var(--color-brown-pale);box-shadow:var(--shadow-md)}.preset-card__icon{font-size:var(--text-xl);margin-bottom:var(--space-1)}.preset-card__name{font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.preset-card__detail{font-size:var(--text-xs);color:var(--color-text-secondary)}.theme-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-3);margin-bottom:var(--space-4)}.theme-card{display:flex;align-items: center;gap:var(--space-2);padding:var(--space-3);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);background:var(--color-warm-white);cursor:pointer;transition:border-color var(--transition-fast),background-color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast);box-shadow:var(--shadow-sm);flex-direction:column;min-height:44px}.theme-card:hover{border-color:var(--color-tan);box-shadow:var(--shadow-md);transform:translateY(-1px)}.theme-card--active{border-color:var(--color-brown);background:var(--color-brown-pale);box-shadow:var(--shadow-md)}.theme-card__preview{aspect-ratio:4/3;border-radius:var(--radius-sm);border:var(--border-thin)solid var(--color-border);display:flex;font-family:var(--font-reading);font-size:var(--text-xl);font-weight:var(--font-weight-semibold);justify-content:center;align-items: center;width:100%}.theme-card__preview--light{color:#2c2417;background:#fffef9}.theme-card__preview--sepia{color:#3d3225;background:#f5ecd7}.theme-card__preview--dark{color:#e0ddd5;background:#1a1a2e}.theme-card__label{font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.settings-reset-btn{color:var(--color-text-tertiary);font-family:var(--font-ui);font-size:var(--text-sm);cursor:pointer;padding:var(--space-2)0;text-decoration:underline;text-underline-offset:2px;transition:color var(--transition-fast);background:0 0;border:none}.settings-reset-btn:hover{color:var(--color-error)}.settings-reset-confirm{display:inline-flex;align-items: center;gap:var(--space-3);font-family:var(--font-ui);font-size:var(--text-sm);color:var(--color-error)}.settings-reset-confirm__btn{border:var(--border-thin)solid var(--color-error);color:var(--color-error);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);padding:var(--space-2)var(--space-4);border-radius:var(--radius-md);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast);background:0 0;min-height:36px}.settings-reset-confirm__btn:hover{background:var(--color-error);color:#fff}.settings-reset-confirm__cancel{color:var(--color-text-tertiary);font-family:var(--font-ui);font-size:var(--text-sm);cursor:pointer;padding:var(--space-2)var(--space-4);transition:color var(--transition-fast);background:0 0;border:none;min-height:36px}.settings-reset-confirm__cancel:hover{color:var(--color-text-primary)}.api-key-group{margin-bottom:var(--space-4)}.api-key-input-row{display:flex;gap:var(--space-2)}.api-key-input{padding:var(--space-2)var(--space-3);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);font-family:var(--font-mono);font-size:var(--text-sm);background:var(--color-warm-white);color:var(--color-text-primary);transition:border-color var(--transition-fast),box-shadow var(--transition-fast);flex:1;min-height:44px}.api-key-input:focus{outline:none;border-color:var(--color-brown);box-shadow:0 0 0 3px var(--color-brown-pale)}.api-key-input::placeholder{color:var(--color-text-disabled)}.api-key-btn{padding:var(--space-2)var(--space-5);border-radius:var(--radius-md);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:background-color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast);white-space:nowrap;border:none;min-height:44px}.api-key-btn--save{background:linear-gradient(180deg,var(--color-brown-light)0%,var(--color-brown)100%);color:#fff;box-shadow:var(--shadow-sm),inset 0 1px 0 #ffffff26}.api-key-btn--save:hover{background:linear-gradient(180deg,var(--color-brown)0%,var(--color-brown-dark)100%);box-shadow:var(--shadow-md);transform:translateY(-1px)}.api-key-btn--save:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}.api-key-btn--clear{border:var(--border-thin)solid var(--color-error);color:var(--color-error);padding:var(--space-1)var(--space-3);font-size:var(--text-xs);background:0 0;min-height:auto}.api-key-btn--clear:hover{background:var(--color-error);color:#fff}.api-key-status{display:flex;align-items: center;gap:var(--space-2);margin-top:var(--space-2);font-size:var(--text-sm)}.api-key-status--saved{color:var(--color-success)}.api-key-status--none{color:var(--color-text-tertiary)}.settings-select{padding:var(--space-2)var(--space-3);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);font-family:var(--font-ui);font-size:var(--text-sm);background:var(--color-warm-white);color:var(--color-text-primary);cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238B7355' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right var(--space-3)center;padding-right:var(--space-10);box-shadow:var(--shadow-sm);transition:border-color var(--transition-fast),box-shadow var(--transition-fast);width:100%;min-height:44px}.settings-select:focus{outline:none;border-color:var(--color-brown);box-shadow:0 0 0 3px var(--color-brown-pale)}.settings-text-input{padding:var(--space-2)var(--space-3);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);font-family:var(--font-ui);font-size:var(--text-sm);background:var(--color-warm-white);color:var(--color-text-primary);box-sizing:border-box;box-shadow:var(--shadow-sm);transition:border-color var(--transition-fast),box-shadow var(--transition-fast);width:100%;min-height:44px}.settings-text-input:focus{outline:none;border-color:var(--color-brown);box-shadow:0 0 0 3px var(--color-brown-pale)}.settings-text-input::placeholder{color:var(--color-text-disabled)}.quota-section{display:flex;gap:var(--space-5);flex-direction:column}.quota-category{padding:var(--space-4);background:var(--color-warm-white);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);overflow:visible}.quota-category__title{font-family:var(--font-ui);font-size:var(--text-base);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0 0 var(--space-2)0}.quota-bar{margin-bottom:var(--space-4)}.quota-bar:last-child{margin-bottom:0}.quota-bar__header{display:flex;margin-bottom:var(--space-2);justify-content:space-between;align-items: center}.quota-bar__label{font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.quota-bar__reset{font-size:var(--text-xs);color:var(--color-text-tertiary);margin-left:var(--space-2);font-weight:var(--font-weight-normal)}.quota-bar__value{font-size:var(--text-sm);font-family:var(--font-mono);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.quota-bar__track{background:var(--color-antique);border-radius:var(--radius-full);overflow:hidden;border:var(--border-thin)solid var(--color-border);height:12px}.quota-bar__fill{border-radius:var(--radius-full);height:100%;transition:width .3s}.quota-bar__fill--ok{background:var(--color-success)}.quota-bar__fill--warning{background:var(--color-warning)}.quota-bar__fill--error{background:var(--color-error)}.quota-empty{text-align:center;padding:var(--space-6)var(--space-4);color:var(--color-text-tertiary);font-size:var(--text-sm)}.preview-fab{position:fixed;bottom:var(--space-6);right:var(--space-6);z-index:var(--z-popover);background:linear-gradient(180deg,var(--color-brown-light)0%,var(--color-brown)100%);color:#fff;font-family:var(--font-reading);font-size:var(--text-xl);font-weight:var(--font-weight-semibold);cursor:pointer;box-shadow:var(--shadow-lg);transition:transform var(--transition-fast),box-shadow var(--transition-fast);display:flex;border:none;border-radius:50%;justify-content:center;align-items: center;width:56px;height:56px}.preview-fab:hover{transform:scale(1.08);box-shadow:0 8px 28px #2c28252e}.preview-fab--active{background:var(--color-brown-dark)}.preview-panel{position:fixed;bottom:88px;right:var(--space-6);z-index:var(--z-popover);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden;animation:preview-panel-in .15s ease-out;width:340px;max-height:320px}@keyframes preview-panel-in{0%{opacity:0;transform:translateY(8px)scale(.96)}to{opacity:1;transform:translateY(0)scale(1)}}.preview-panel__header{display:flex;padding:var(--space-2)var(--space-3);border-bottom:var(--border-thin)solid var(--color-border);background:var(--color-linen);justify-content:space-between;align-items: center}.preview-panel__title{font-family:var(--font-ui);font-size:var(--text-xs);font-weight:var(--font-weight-semibold);color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:.05em}.preview-panel__close{color:var(--color-text-tertiary);font-size:var(--text-base);cursor:pointer;padding:var(--space-1);border-radius:var(--radius-sm);transition:color var(--transition-fast),background-color var(--transition-fast);background:0 0;border:none;line-height:1}.preview-panel__close:hover{color:var(--color-text-primary);background:var(--color-sand)}.preview-panel__body{padding:var(--space-4);overflow-y:auto;transition:background-color var(--transition-normal),color var(--transition-normal);max-height:270px}.preview-panel__text{word-wrap:break-word;overflow-wrap:break-word;transition:font-family var(--transition-normal),font-size var(--transition-normal),line-height var(--transition-normal)}@media (max-width:767px){.preview-fab{bottom:var(--space-4);right:var(--space-4)}.preview-panel{left:var(--space-3);right:var(--space-3);border-radius:var(--radius-lg);width:auto;max-width:none;bottom:80px}}.account-info{padding:var(--space-4);background:var(--color-linen);border:var(--border-thin)solid var(--color-border);border-radius:var(--radius-md);margin-bottom:var(--space-4)}.account-info__row{display:flex;padding:var(--space-2)0;justify-content:space-between;align-items: center}.account-info__row:not(:last-child){border-bottom:var(--border-thin)solid var(--color-border)}.account-info__label{font-size:var(--text-sm);color:var(--color-text-secondary)}.account-info__value{font-size:var(--text-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.account-signout-btn{display:inline-flex;align-items: center;gap:var(--space-2);padding:var(--space-3)var(--space-5);border:var(--border-thin)solid var(--color-error);border-radius:var(--radius-md);color:var(--color-error);font-family:var(--font-ui);font-size:var(--text-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast),box-shadow var(--transition-fast);background:0 0;min-height:44px}.account-signout-btn:hover{background:var(--color-error);color:#fff;box-shadow:var(--shadow-md)}@media (prefers-reduced-motion:reduce){.settings-content{scroll-behavior:auto}.toggle-switch__thumb,.toggle-switch__track,.segmented-control__option,.preset-card,.theme-card,.preview-fab,.preview-panel,.preview-panel__body,.preview-panel__text,.preview-panel__close,.quota-bar__fill{animation:none;transition:none}.range-slider__input::-webkit-slider-thumb{animation:none;transition:none}}@media (max-width:480px){.settings-page .settings-header{padding:var(--space-2)var(--space-3)}.settings-page .settings-header__spacer{display:none}.settings-content{padding:var(--space-4)var(--space-3)}.preset-cards,.theme-cards{grid-template-columns:repeat(3,1fr);gap:var(--space-2)}.settings-section{margin-bottom:var(--space-8)}}.audio-unlock-overlay{position:fixed;z-index:2000;backdrop-filter:blur(4px);display:flex;padding:var(--space-4);background-color:#000000d9;justify-content:center;align-items: center;inset:0}.audio-unlock-modal{background-color:var(--color-warm-white);border-radius:var(--radius-large);padding:var(--space-8);text-align:center;width:100%;max-width:400px;box-shadow:0 8px 32px #0000004d}.audio-unlock-icon{display:inline-block;background-color:var(--color-sage-pale);display:flex;margin:0 auto var(--space-4);color:var(--color-sage-dark);border-radius:50%;justify-content:center;align-items: center;width:64px;height:64px}.audio-unlock-modal h3{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-charcoal);margin-bottom:var(--space-3)}.audio-unlock-modal p{font-size:var(--font-size-base);color:var(--color-text-secondary);margin-bottom:var(--space-5);line-height:1.5}.audio-unlock-button{padding:var(--space-4)var(--space-6);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-warm-white);background-color:var(--color-sage);border-radius:var(--radius-medium);cursor:pointer;transition:all var(--transition-fast);border:none;width:100%;box-shadow:0 2px 8px #6b90804d}.audio-unlock-button:hover{background-color:var(--color-sage-dark);transform:translateY(-1px);box-shadow:0 4px 12px #6b908066}.audio-unlock-button:active{background-color:var(--color-sage-darker);transform:translateY(0);box-shadow:0 1px 4px #6b90804d}.audio-unlock-note{margin-top:var(--space-4);font-size:var(--font-size-sm);color:var(--color-text-tertiary);font-style:italic}.audio-player{position:fixed;z-index:1000;background-color:var(--color-warm-white);border-top:var(--border-medium)solid var(--color-sage);transition:height var(--transition-normal);bottom:0;left:0;right:0;box-shadow:0 -4px 12px #2c282526}.audio-player--expanded{height:100vh}.audio-player__minimized{display:flex;align-items: center;gap:var(--space-3);padding:var(--space-3)var(--space-4);cursor:pointer;transition:background-color var(--transition-fast);position:relative}.audio-player__minimized:hover{background-color:var(--color-sage-pale)}.audio-player__minimized:active{background-color:var(--color-linen)}.audio-player__cover{background-color:var(--color-linen);border-radius:var(--radius-sm);display:flex;color:var(--color-sage);border:var(--border-thin)solid var(--color-border);overflow:hidden;flex-shrink:0;justify-content:center;align-items: center;width:40px;height:40px}.audio-player__cover-img{object-fit:cover;width:100%;height:100%}.audio-player__info{display:flex;gap:var(--space-1);flex-direction:column;flex:1;min-width:0}.audio-player__title{font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.audio-player__subtitle{font-size:var(--text-xs);color:var(--color-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.audio-player__control{background-color:var(--color-sage);color:#fff;display:flex;cursor:pointer;transition:background-color var(--transition-fast),transform var(--transition-fast),box-shadow var(--transition-fast);box-shadow:var(--shadow-sm);border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items: center;width:44px;height:44px}.audio-player__control:hover{background-color:var(--color-sage-dark);box-shadow:var(--shadow-md);transform:scale(1.05)}.audio-player__control:active{box-shadow:var(--shadow-sm);transform:scale(.95)}.audio-player__progress-bar{position:absolute;background-color:var(--color-sand);overflow:hidden;height:3px;bottom:0;left:0;right:0}.audio-player__progress-fill{background:linear-gradient(90deg,var(--color-sage)0%,var(--color-sage-light)100%);transition:width var(--transition-normal);border-radius:0;height:100%}.audio-player__expanded{display:flex;padding-top:calc(64px + env(safe-area-inset-top,0px));padding-left:var(--space-6);padding-right:var(--space-6);padding-bottom:var(--space-8);background:linear-gradient(180deg,var(--color-warm-white)0%,var(--color-sage-pale)100%);position:relative;flex-direction:column;justify-content:flex-start;align-items: center;height:100vh}.audio-player__close{position:absolute;top:max(52px,calc(var(--space-8) + env(safe-area-inset-top,0px)));right:var(--space-4);color:var(--color-text-secondary);display:flex;cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast);z-index:10;background-color:#0000;border:none;border-radius:50%;justify-content:center;align-items: center;width:44px;height:44px}.audio-player__close:hover{background-color:var(--color-linen);color:var(--color-text-primary)}.audio-player__close:active{background-color:var(--color-antique)}.audio-player__cover-large{background:linear-gradient(135deg,var(--color-linen)0%,var(--color-tan-light)100%);border-radius:var(--radius-lg);display:flex;color:var(--color-sage);border:var(--border-medium)solid var(--color-border);box-shadow:var(--shadow-lg);margin-bottom:var(--space-6);overflow:hidden;flex-shrink:0;justify-content:center;align-items: center;width:200px;height:200px}.audio-player__cover-img-large{object-fit:cover;width:100%;height:100%}.audio-player__metadata{text-align:center;margin-bottom:var(--space-8);max-width:500px}.audio-player__expanded-title{font-size:var(--text-2xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:0 0 var(--space-2)0;line-height:var(--leading-tight)}.audio-player__expanded-author{font-size:var(--text-base);color:var(--color-text-secondary);margin:0 0 var(--space-1)0}.audio-player__expanded-chapter{font-size:var(--text-sm);color:var(--color-text-tertiary);margin:0;font-style:italic}.audio-player__controls{display:flex;justify-content:center;align-items: center;gap:var(--space-4);margin-bottom:var(--space-6)}.audio-player__control-btn{border:var(--border-thin)solid var(--color-border);background-color:var(--color-warm-white);color:var(--color-sage);display:flex;cursor:pointer;transition:background-color var(--transition-fast),transform var(--transition-fast),box-shadow var(--transition-fast),border-color var(--transition-fast);box-shadow:var(--shadow-sm);border-radius:50%;justify-content:center;align-items: center;width:56px;height:56px}.audio-player__control-btn:hover:not(:disabled){background-color:var(--color-sage-pale);border-color:var(--color-sage);box-shadow:var(--shadow-md);transform:scale(1.05)}.audio-player__control-btn:active:not(:disabled){box-shadow:var(--shadow-sm);transform:scale(.95)}.audio-player__control-btn:disabled{opacity:.4;cursor:not-allowed}.audio-player__control-btn--primary{background:linear-gradient(180deg,var(--color-sage-light)0%,var(--color-sage)100%);border-color:var(--color-sage-dark);color:#fff;box-shadow:var(--shadow-md);width:72px;height:72px}.audio-player__control-btn--primary:hover:not(:disabled){background:linear-gradient(180deg,var(--color-sage)0%,var(--color-sage-dark)100%);box-shadow:var(--shadow-lg);transform:scale(1.1)}.audio-player__control-btn--primary:active:not(:disabled){box-shadow:var(--shadow-md);transform:scale(1)}.audio-player__progress-section{width:100%;max-width:500px}.audio-player__advanced-controls{display:flex;gap:var(--space-2);padding:var(--space-4)0;flex-direction:column;width:100%;max-width:500px}.audio-player__progress-bar--expanded{position:relative;background-color:var(--color-sand);border-radius:var(--radius-full);overflow:hidden;margin-bottom:var(--space-2);cursor:pointer;height:6px}.audio-player__progress-bar--expanded:hover .audio-player__progress-fill{background:linear-gradient(90deg,var(--color-sage-dark)0%,var(--color-sage)100%)}.audio-player__progress-labels{display:flex;font-size:var(--text-xs);color:var(--color-text-tertiary);justify-content:space-between}@media (max-width:480px){.audio-player__minimized{padding:var(--space-2)var(--space-3);gap:var(--space-2)}.audio-player__cover{width:36px;height:36px}.audio-player__title{font-size:var(--text-xs)}.audio-player__subtitle{font-size:10px}.audio-player__control{width:40px;height:40px}.audio-player__expanded{padding:var(--space-6)var(--space-4)}.audio-player__cover-large{margin-bottom:var(--space-4);width:160px;height:160px}.audio-player__cover-large svg{width:80px;height:80px}.audio-player__metadata{margin-bottom:var(--space-6)}.audio-player__expanded-title{font-size:var(--text-xl)}.audio-player__expanded-author{font-size:var(--text-sm)}.audio-player__controls{gap:var(--space-3);margin-bottom:var(--space-4)}.audio-player__control-btn{width:48px;height:48px}.audio-player__control-btn--primary{width:64px;height:64px}.audio-player__progress-section{max-width:100%}}@media (min-width:481px) and (max-width:768px){.audio-player__minimized{padding:var(--space-3)}.audio-player__cover-large{width:180px;height:180px}}@media (min-width:769px){.audio-player__minimized{border-radius:var(--radius-md)var(--radius-md)0 0;max-width:600px;margin:0 auto}.audio-player__expanded{padding:var(--space-10)var(--space-8)}.audio-player__metadata,.audio-player__progress-section{max-width:600px}}@media (min-width:1025px){.audio-player__minimized{max-width:800px}}@keyframes player-slide-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}.audio-player{animation:player-slide-up var(--transition-normal)ease-out}@keyframes player-pulse{0%,to{opacity:1}50%{opacity:.7}}.audio-player__minimized:not(:hover) .audio-player__control{animation:player-pulse 2s ease-in-out infinite}@media (pointer:coarse){.audio-player__control,.audio-player__control-btn,.audio-player__close{min-width:44px;min-height:44px}.audio-player__minimized{padding:var(--space-3)var(--space-4)}.audio-player__minimized,.audio-player__controls{user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent}}[data-theme=dark] .audio-player{border-top-color:var(--color-sage-dark);background-color:#2c2c2c}[data-theme=dark] .audio-player__minimized:hover{background-color:#3a3a3a}[data-theme=dark] .audio-player__expanded{background:linear-gradient(#2c2c2c 0%,#1a1a1a 100%)}[data-theme=dark] .audio-player__cover,[data-theme=dark] .audio-player__cover-large{background-color:#3a3a3a;border-color:#4a4a4a}[data-theme=dark] .audio-player__control-btn{color:var(--color-sage-light);background-color:#3a3a3a;border-color:#4a4a4a}[data-theme=dark] .audio-player__control-btn:hover:not(:disabled){background-color:#4a4a4a}.audio-btn{padding:var(--space-3)var(--space-4);border-radius:var(--radius-md);background-color:var(--color-sage);color:#fff;font-size:var(--text-base);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-fast);display:inline-flex;justify-content:center;align-items: center;gap:var(--space-2);box-shadow:var(--shadow-sm);border:none}.audio-btn--circular{font-size:var(--text-xl);border-radius:50%;width:60px;height:60px;padding:0}.audio-btn:hover{background-color:var(--color-sage-dark)}.audio-btn:active{transform:scale(.98)}.audio-btn:disabled{opacity:.5;cursor:not-allowed}.audio-btn--small{padding:var(--space-2)var(--space-3);font-size:var(--text-sm)}.audio-btn--large{padding:var(--space-4)var(--space-6);font-size:var(--text-lg)}.audio-btn--secondary{background-color:var(--color-warm-white);color:var(--color-sage);border:var(--border-medium)solid var(--color-sage);box-shadow:none}.audio-btn--secondary:hover{background-color:var(--color-sage-pale);border-color:var(--color-sage-dark);box-shadow:var(--shadow-sm)}.audio-btn--secondary:active{background-color:var(--color-linen)}.audio-btn--timer{font-size:var(--text-sm);font-weight:var(--font-weight-semibold);justify-content:center;min-width:140px}.audio-btn--play-pause{font-size:var(--text-2xl);border-radius:50%;width:60px;height:60px}.audio-btn--play-pause.audio-btn--large{font-size:var(--text-3xl);width:72px;height:72px}.audio-btn--stop{font-size:var(--text-xl);border-radius:50%;width:44px;height:44px}.audio-btn--skip{display:flex;justify-content:center;align-items: center;gap:var(--space-1);padding:var(--space-2);border-radius:50%;flex-direction:column;width:60px;height:60px}.skip-icon{display:block;flex-shrink:0}.skip-label{font-size:var(--text-xs);font-weight:var(--font-weight-semibold)}.audio-progress{display:flex;align-items: center;gap:var(--space-3);width:100%}.audio-progress__bar{position:relative;background-color:var(--color-linen);border-radius:var(--radius-full);cursor:pointer;display:flex;padding:0 var(--space-2);transition:background-color var(--transition-fast);flex:1;align-items: center;height:36px}.audio-progress__bar:hover:not(.audio-progress__bar--disabled){background-color:var(--color-sand)}.audio-progress__bar--disabled{cursor:not-allowed;opacity:.6}.audio-progress__fill{position:absolute;top:50%;left:var(--space-2);background-color:var(--color-sage);border-radius:var(--radius-full);pointer-events:none;height:4px;transition:width .1s linear;transform:translateY(-50%)}.audio-progress__thumb{position:absolute;background-color:var(--color-sage);pointer-events:none;border:2px solid #fff;border-radius:50%;width:16px;height:16px;top:50%;transform:translate(-50%,-50%);box-shadow:0 2px 4px #2c282533}.audio-progress__time{font-size:var(--text-sm);color:var(--color-text-secondary);text-align:center;min-width:48px}.audio-control{display:flex;align-items: center;gap:var(--space-3);padding:var(--space-3)0}.audio-control__label{font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);min-width:80px}.audio-control__input{position:relative;flex:1}.audio-control__icon-btn{padding:var(--space-2);font-size:var(--text-xl);cursor:pointer;transition:transform var(--transition-fast);background:0 0;border:none}.audio-control__icon-btn:hover{transform:scale(1.1)}.audio-control__value{font-size:var(--text-sm);color:var(--color-text-secondary);text-align:right;min-width:32px}.audio-slider{border-radius:var(--radius-full);background:linear-gradient(to right,var(--color-sage-light)0%,var(--color-sage-light)var(--slider-value,0%),var(--color-linen)var(--slider-value,0%),var(--color-linen)100%);outline:none;cursor:pointer;-webkit-appearance:none;transition:height var(--transition-fast);width:100%;height:8px}.audio-slider:hover{height:10px}.audio-slider:focus{outline:2px solid var(--color-sage);outline-offset:2px}.audio-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;background:linear-gradient(135deg,var(--color-sage)0%,var(--color-sage-light)100%);cursor:pointer;transition:transform var(--transition-fast),box-shadow var(--transition-fast);border:3px solid #fff;border-radius:50%;width:20px;height:20px;box-shadow:0 2px 8px #2c282533}.audio-slider::-webkit-slider-thumb:hover{transform:scale(1.1);box-shadow:0 4px 12px #2c28254d}.audio-slider::-webkit-slider-thumb:active{transform:scale(1.05);box-shadow:0 2px 8px #2c282540}.audio-slider::-moz-range-thumb{background:linear-gradient(135deg,var(--color-sage)0%,var(--color-sage-light)100%);cursor:pointer;border:3px solid #fff;border-radius:50%;width:20px;height:20px;transition:transform .15s,box-shadow .15s;box-shadow:0 2px 8px #2c282533}.audio-slider::-moz-range-thumb:hover{transform:scale(1.1);box-shadow:0 4px 12px #2c28254d}.audio-slider::-moz-range-thumb:active{transform:scale(1.05);box-shadow:0 2px 8px #2c282540}.audio-slider::-webkit-slider-runnable-track{border-radius:var(--radius-full);height:8px}.audio-slider::-moz-range-track{border-radius:var(--radius-full);background:0 0;height:8px}.audio-dropdown-trigger{padding:var(--space-2)var(--space-4);border:var(--border-medium)solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-size:var(--text-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-fast);background:#fff;min-width:80px}.audio-dropdown-trigger:hover{border-color:var(--color-sage);background-color:var(--color-sage-pale)}.audio-dropdown-trigger:focus-visible{outline:2px solid var(--color-sage);outline-offset:2px;border-color:var(--color-sage)}.audio-dropdown{position:absolute;margin-top:var(--space-2);border:var(--border-medium)solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:10;overflow-y:auto;background:#fff;min-width:120px;max-height:240px;top:100%;left:0}.audio-dropdown__item{display:block;padding:var(--space-3)var(--space-4);color:var(--color-text-primary);font-size:var(--text-sm);text-align:left;cursor:pointer;transition:background-color var(--transition-fast);background:0 0;border:none;width:100%}.audio-dropdown__item:hover{background-color:var(--color-sage-pale)}.audio-dropdown__item--active{background-color:var(--color-sage);color:#fff;font-weight:var(--font-weight-medium)}.audio-drawer{position:fixed;z-index:1001;display:flex;animation:slideUp .3s ease-out;background:#fff;flex-direction:column;inset:0}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.audio-drawer__header{display:flex;padding:var(--space-4);border-bottom:var(--border-medium)solid var(--color-border);justify-content:space-between;align-items: center}.audio-drawer__title{font-size:var(--text-lg);font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin:0}.audio-drawer__close{color:var(--color-text-secondary);font-size:var(--text-xl);cursor:pointer;transition:background-color var(--transition-fast);background:0 0;border:none;border-radius:50%;width:40px;height:40px}.audio-drawer__close:hover{background-color:var(--color-linen)}.audio-drawer__content{overflow-y:auto;padding:var(--space-2);flex:1}.audio-chapter-item{display:flex;align-items: center;gap:var(--space-3);padding:var(--space-3)var(--space-4);color:var(--color-text-primary);text-align:left;cursor:pointer;border-radius:var(--radius-md);transition:background-color var(--transition-fast);background:0 0;border:none;width:100%}.audio-chapter-item:hover{background-color:var(--color-sage-pale)}.audio-chapter-item--active{background-color:var(--color-sage);color:#fff;font-weight:var(--font-weight-medium)}.audio-chapter-item__number{background-color:var(--color-linen);color:var(--color-text-secondary);display:flex;font-size:var(--text-sm);font-weight:var(--font-weight-bold);border-radius:50%;flex-shrink:0;justify-content:center;align-items: center;width:32px;height:32px}.audio-chapter-item--active .audio-chapter-item__number{color:var(--color-sage);background-color:#fff}.audio-chapter-item__title{font-size:var(--text-base);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.audio-timer-active{display:flex;align-items: center;gap:var(--space-3);padding:var(--space-3)var(--space-4);background:linear-gradient(135deg,var(--color-sage-pale)0%,var(--color-linen)100%);border-radius:var(--radius-md);border:var(--border-medium)solid var(--color-sage);box-shadow:var(--shadow-sm)}.audio-timer-active__label{font-size:var(--text-sm);color:var(--color-sage-dark);font-weight:var(--font-weight-semibold);display:flex;align-items: center;gap:var(--space-2);flex:1}.audio-timer-active__label:before{content:"";display:inline-block;background-color:var(--color-sage);animation:timer-pulse 2s ease-in-out infinite;border-radius:50%;width:8px;height:8px}@keyframes timer-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(.9)}}@media (prefers-reduced-motion:reduce){.audio-timer-active__label:before,.audio-player__control,.audio-player__minimized,.audio-btn,.audio-progress__thumb{animation:none!important}.audio-slider::-webkit-slider-thumb{animation:none!important}.audio-slider::-moz-range-thumb{animation:none!important}*{transition-duration:.01ms!important}.audio-btn:active,.audio-player__control:active{transform:none!important}.audio-slider::-webkit-slider-thumb:hover{transform:none!important}.audio-slider::-moz-range-thumb:hover{transform:none!important}}