@font-face{font-family:Neue Haas Display;src:url(/fonts/NeueHaasDisplayRoman.ttf) format("truetype");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Monaspace Neon;src:url(/fonts/MonaspaceNeon-Regular.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Monaspace Neon;src:url(/fonts/MonaspaceNeon-SemiBold.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}@font-face{font-family:Quicksand;src:url(/fonts/Quicksand-VariableFont_wght.ttf) format("truetype");font-weight:300 700;font-style:normal;font-display:swap}@font-face{font-family:Queensides;src:url(/fonts/Queensides-3z7Ey.ttf) format("truetype");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Queensides;src:url(/fonts/QueensidesMedium-x30zV.ttf) format("truetype");font-weight:500;font-style:normal;font-display:swap}@font-face{font-family:Panama;src:url(/fonts/PanamaProportionalRegular.woff) format("woff");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Panama Mono;src:url(/fonts/PanamaMonospaceRegular.woff) format("woff");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Charis SIL;src:url(/fonts/CharisSILR.ttf) format("truetype");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Charis SIL;src:url(/fonts/CharisSILB.ttf) format("truetype");font-weight:700;font-style:normal;font-display:swap}@font-face{font-family:Charis SIL;src:url(/fonts/CharisSILI.ttf) format("truetype");font-weight:400;font-style:italic;font-display:swap}@font-face{font-family:Charis SIL;src:url(/fonts/CharisSILBI.ttf) format("truetype");font-weight:700;font-style:italic;font-display:swap}:root{--font-display: "Neue Haas Display", "Inter", -apple-system, sans-serif;--font-ui: "Quicksand", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-reading: "Charis SIL", "Literata", "Georgia", "Times New Roman", serif;--font-reading-sans: "Panama", "Quicksand", "Inter", sans-serif;--font-mono: "Monaspace Neon", "Panama Mono", "SF Mono", monospace;--font-accent: "Queensides", "Neue Haas Display", sans-serif;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 2rem;--text-4xl: 2.5rem;--reading-line-height: 1.85;--reading-letter-spacing: .012em;--reading-max-width: 680px;--reading-paragraph-spacing: 1.6em;--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;--space-20: 5rem;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--shadow-subtle: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);--shadow-md: 0 4px 16px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .12);--shadow-xl: 0 16px 48px rgba(0, 0, 0, .16);--shadow-float: 0 8px 40px rgba(0, 0, 0, .15), 0 2px 8px rgba(0, 0, 0, .08);--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-in-out: cubic-bezier(.65, 0, .35, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--duration-fast: .15s;--duration-base: .25s;--duration-slow: .4s;--z-base: 0;--z-float: 100;--z-overlay: 200;--z-modal: 300;--sidebar-width: 300px;--controls-height: 56px}:root,[data-theme=light]{--color-bg: #FFFFFF;--color-bg-subtle: #FAFAFA;--color-bg-muted: #F5F5F5;--color-bg-overlay: rgba(255, 255, 255, .95);--color-text: #1A1A1A;--color-text-secondary: #666666;--color-text-muted: #999999;--color-text-faint: #BBBBBB;--color-accent: #5856D6;--color-accent-hover: #4B49B6;--color-accent-subtle: rgba(88, 86, 214, .08);--color-border: rgba(0, 0, 0, .06);--color-border-subtle: rgba(0, 0, 0, .03);--color-reading-bg: #FFFFFF;--color-reading-text: #2C2C2C;--color-hover: rgba(0, 0, 0, .03);--color-active: rgba(0, 0, 0, .06);--scrollbar-thumb: rgba(0, 0, 0, .15);--scrollbar-thumb-hover: rgba(0, 0, 0, .25)}[data-theme=dark]{--color-bg: #0D0D0D;--color-bg-subtle: #141414;--color-bg-muted: #1A1A1A;--color-bg-overlay: rgba(20, 20, 20, .95);--color-text: #ECECEC;--color-text-secondary: #A0A0A0;--color-text-muted: #6E6E6E;--color-text-faint: #4A4A4A;--color-accent: #7B79FF;--color-accent-hover: #9290FF;--color-accent-subtle: rgba(123, 121, 255, .12);--color-border: rgba(255, 255, 255, .06);--color-border-subtle: rgba(255, 255, 255, .03);--color-reading-bg: #0D0D0D;--color-reading-text: #D8D8D8;--color-hover: rgba(255, 255, 255, .04);--color-active: rgba(255, 255, 255, .08);--scrollbar-thumb: rgba(255, 255, 255, .12);--scrollbar-thumb-hover: rgba(255, 255, 255, .2)}[data-theme=sepia]{--color-bg: #FAF6F0;--color-bg-subtle: #F5F0E8;--color-bg-muted: #EDE6DC;--color-bg-overlay: rgba(250, 246, 240, .95);--color-text: #3D3229;--color-text-secondary: #6B5D4D;--color-text-muted: #9A8B78;--color-text-faint: #BFB09C;--color-accent: #A67C52;--color-accent-hover: #8F6A45;--color-accent-subtle: rgba(166, 124, 82, .1);--color-border: rgba(61, 50, 41, .08);--color-border-subtle: rgba(61, 50, 41, .04);--color-reading-bg: #FAF6F0;--color-reading-text: #3D3229;--color-hover: rgba(61, 50, 41, .04);--color-active: rgba(61, 50, 41, .08);--scrollbar-thumb: rgba(61, 50, 41, .15);--scrollbar-thumb-hover: rgba(61, 50, 41, .25)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;font-feature-settings:"kern" 1,"liga" 1}body{font-family:var(--font-ui);font-size:var(--text-base);font-weight:400;line-height:1.5;color:var(--color-text);background:var(--color-bg);min-height:100vh;transition:background-color var(--duration-slow) var(--ease-out),color var(--duration-slow) var(--ease-out)}:focus{outline:none}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}button{font-family:inherit;font-size:inherit;font-weight:500;border:none;background:none;cursor:pointer;color:inherit;-webkit-tap-highlight-color:transparent}a{color:var(--color-accent);text-decoration:none;transition:opacity var(--duration-fast) var(--ease-out)}a:hover{opacity:.8}img{max-width:100%;height:auto;display:block}ul,ol{list-style:none}input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;background:var(--color-bg-muted);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);transition:border-color var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out)}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-subtle)}::selection{background:var(--color-accent-subtle);color:var(--color-text)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}.hide-scrollbar{scrollbar-width:none;-ms-overflow-style:none}.hide-scrollbar::-webkit-scrollbar{display:none}#app{min-height:100vh}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInScale{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes slideDown{0%{transform:translateY(-100%)}to{transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.animate-fade-in{animation:fadeIn var(--duration-base) var(--ease-out)}.animate-fade-in-up{animation:fadeInUp var(--duration-slow) var(--ease-out)}.spinner{width:20px;height:20px;border:2px solid var(--color-border);border-top-color:var(--color-accent);border-radius:50%;animation:spin .7s linear infinite}.spinner-lg{width:32px;height:32px;border-width:2.5px}@keyframes spin{to{transform:rotate(360deg)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);font-size:var(--text-sm);font-weight:500;line-height:1;border-radius:var(--radius-md);transition:all var(--duration-fast) var(--ease-out);cursor:pointer;-webkit-user-select:none;user-select:none}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.btn-primary{background:var(--color-accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-accent-hover)}.btn-secondary{background:var(--color-bg-muted);color:var(--color-text)}.btn-secondary:hover:not(:disabled){background:var(--color-active)}.btn-ghost{background:transparent;color:var(--color-text-secondary);padding:var(--space-2)}.btn-ghost:hover:not(:disabled){background:var(--color-hover);color:var(--color-text)}.btn-icon{width:40px;height:40px;padding:0;border-radius:var(--radius-md)}.btn-icon svg{width:20px;height:20px}.dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-5);padding:var(--space-16) var(--space-8);border:1.5px dashed var(--color-border);border-radius:var(--radius-xl);background:var(--color-bg-subtle);cursor:pointer;transition:all var(--duration-base) var(--ease-out)}.dropzone:hover,.dropzone.dragover{border-color:var(--color-accent);background:var(--color-accent-subtle)}.dropzone-icon{font-size:3.5rem;line-height:1;opacity:.7;transition:all var(--duration-base) var(--ease-spring)}.dropzone:hover .dropzone-icon,.dropzone.dragover .dropzone-icon{opacity:1;transform:scale(1.08) translateY(-4px)}.dropzone-text{text-align:center}.dropzone-title{font-size:var(--text-lg);font-weight:500;color:var(--color-text);margin-bottom:var(--space-1)}.dropzone-hint{font-size:var(--text-sm);color:var(--color-text-muted)}.floating-controls{position:fixed;left:50%;bottom:var(--space-8);transform:translate(-50%) translateY(calc(100% + var(--space-8)));z-index:var(--z-float);display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2);background:var(--color-bg-overlay);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-float);opacity:0;visibility:hidden;transition:transform var(--duration-slow) var(--ease-out),opacity var(--duration-base) var(--ease-out),visibility var(--duration-base)}.floating-controls.visible{transform:translate(-50%) translateY(0);opacity:1;visibility:visible}.floating-controls .divider{width:1px;height:24px;background:var(--color-border);margin:0 var(--space-1)}.chapter-pill{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);background:var(--color-bg-muted);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:500;color:var(--color-text-secondary)}.sidebar{position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-width);background:var(--color-bg);border-right:1px solid var(--color-border-subtle);z-index:var(--z-overlay);transform:translate(-100%);transition:transform var(--duration-slow) var(--ease-out);display:flex;flex-direction:column}.sidebar.open{transform:translate(0)}.sidebar-backdrop{position:fixed;inset:0;background:#0006;z-index:calc(var(--z-overlay) - 1);opacity:0;visibility:hidden;transition:opacity var(--duration-base) var(--ease-out),visibility var(--duration-base)}.sidebar-backdrop.visible{opacity:1;visibility:visible}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-5);border-bottom:1px solid var(--color-border-subtle);flex-shrink:0}.sidebar-title{font-size:var(--text-sm);font-weight:600;letter-spacing:.02em;text-transform:uppercase;color:var(--color-text-muted)}.sidebar-content{flex:1;overflow-y:auto;padding:var(--space-3)}.toc-item{display:block;padding:var(--space-3) var(--space-4);font-size:var(--text-sm);color:var(--color-text-secondary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--duration-fast) var(--ease-out);margin-bottom:2px}.toc-item:hover{background:var(--color-hover);color:var(--color-text)}.toc-item.active{background:var(--color-accent-subtle);color:var(--color-accent);font-weight:500}.toc-item-nested{padding-left:var(--space-8);font-size:var(--text-xs)}.reading-area{min-height:100vh;padding:var(--space-16) var(--space-6);cursor:pointer}.reading-container{max-width:var(--reading-max-width);margin:0 auto}.reading-content{font-family:var(--font-reading-active, var(--font-reading));font-size:calc(var(--text-lg) * var(--font-scale, 1));line-height:var(--reading-line-height);letter-spacing:var(--reading-letter-spacing);color:var(--color-reading-text)}.reading-content.sans-serif{font-family:var(--font-ui);letter-spacing:0}.reading-content h1,.reading-content h2,.reading-content h3,.reading-content h4{font-family:var(--font-ui);font-weight:600;line-height:1.3;margin:var(--reading-paragraph-spacing) 0 var(--space-5);color:var(--color-text)}.reading-content h1{font-size:calc(var(--text-3xl) * var(--font-scale, 1));margin-top:0}.reading-content h2{font-size:calc(var(--text-2xl) * var(--font-scale, 1))}.reading-content h3{font-size:calc(var(--text-xl) * var(--font-scale, 1))}.reading-content p{margin-bottom:var(--reading-paragraph-spacing)}.reading-content p:last-child{margin-bottom:0}.reading-content img{max-width:100%;height:auto;margin:var(--space-8) auto;border-radius:var(--radius-lg)}.reading-content blockquote{border-left:2px solid var(--color-accent);padding-left:var(--space-5);margin:var(--space-6) 0;color:var(--color-text-secondary);font-style:italic}.reading-content a{color:var(--color-accent);text-decoration:underline;text-decoration-color:var(--color-accent-subtle);text-underline-offset:2px}.reading-content a:hover{text-decoration-color:var(--color-accent)}.settings-overlay{position:fixed;inset:0;z-index:var(--z-modal);display:flex;align-items:center;justify-content:center;padding:var(--space-6);background:#00000080;opacity:0;visibility:hidden;transition:opacity var(--duration-base) var(--ease-out),visibility var(--duration-base)}.settings-overlay.open{opacity:1;visibility:visible}.settings-panel{width:100%;max-width:400px;max-height:90vh;background:var(--color-bg);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);display:flex;flex-direction:column;overflow:hidden;transform:scale(.95) translateY(10px);transition:transform var(--duration-slow) var(--ease-out)}.settings-overlay.open .settings-panel{transform:scale(1) translateY(0)}.settings-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-5) var(--space-6);border-bottom:1px solid var(--color-border-subtle);flex-shrink:0}.settings-title{font-size:var(--text-lg);font-weight:600}.settings-body{padding:var(--space-6);overflow-y:auto;flex:1;min-height:0}.settings-section{margin-bottom:var(--space-8)}.settings-section:last-child{margin-bottom:0}.settings-label{font-size:var(--text-xs);font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--color-text-muted);margin-bottom:var(--space-4);display:block}.theme-options{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-3)}.theme-option{display:flex;flex-direction:column;align-items:center;gap:var(--space-2);padding:var(--space-4) var(--space-3);background:var(--color-bg-subtle);border:2px solid transparent;border-radius:var(--radius-lg);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.theme-option:hover{background:var(--color-hover)}.theme-option.active{border-color:var(--color-accent);background:var(--color-accent-subtle)}.theme-preview{width:36px;height:36px;border-radius:var(--radius-md);border:1px solid var(--color-border)}.theme-preview.light{background:#fff}.theme-preview.dark{background:#0d0d0d}.theme-preview.sepia{background:#faf6f0}.theme-name{font-size:var(--text-sm);font-weight:500;color:var(--color-text-secondary)}.theme-option.active .theme-name{color:var(--color-accent)}.font-size-slider{display:flex;align-items:center;gap:var(--space-4)}.font-size-slider .label{font-size:var(--text-xs);color:var(--color-text-muted);font-weight:500}.font-size-slider .label.small{font-size:12px}.font-size-slider .label.large{font-size:18px}.font-size-slider input[type=range]{flex:1;-webkit-appearance:none;appearance:none;height:4px;background:var(--color-bg-muted);border-radius:var(--radius-full);border:none;padding:0}.font-size-slider input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;background:var(--color-accent);border-radius:50%;cursor:pointer;transition:transform var(--duration-fast) var(--ease-spring);box-shadow:var(--shadow-sm)}.font-size-slider input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.15)}.font-size-value{min-width:40px;text-align:center;font-size:var(--text-sm);font-weight:600;color:var(--color-accent)}.font-style-options{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-3)}.font-style-option{padding:var(--space-4);background:var(--color-bg-subtle);border:2px solid transparent;border-radius:var(--radius-lg);text-align:center;cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.font-style-option:hover{background:var(--color-hover)}.font-style-option.active{border-color:var(--color-accent);background:var(--color-accent-subtle)}.font-style-sample{font-size:var(--text-xl);margin-bottom:var(--space-2);color:var(--color-text)}.font-style-option.serif .font-style-sample{font-family:var(--font-reading)}.font-style-option.sans .font-style-sample{font-family:var(--font-ui)}.font-style-name{font-size:var(--text-sm);color:var(--color-text-secondary)}.font-style-option.active .font-style-name{color:var(--color-accent);font-weight:500}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:var(--space-5);padding:var(--space-6)}.loading-text{font-size:var(--text-base);color:var(--color-text-secondary)}@media(max-width:768px){.reading-area{padding:var(--space-10) var(--space-4)}.reading-container{max-width:100%}.floating-controls{padding:var(--space-2) var(--space-3);gap:var(--space-2);border-radius:var(--radius-full)}.floating-controls .btn-icon{width:44px;height:44px}.chapter-pill{padding:var(--space-2) var(--space-3);font-size:var(--text-sm)}.sidebar{width:85vw;max-width:320px}.settings-panel{max-width:95vw;margin:var(--space-4)}.dropzone{padding:var(--space-8)}.dropzone-icon{font-size:3rem}.dropzone-text{font-size:var(--text-base)}}@media(max-width:480px){.reading-area{padding:var(--space-8) var(--space-3)}.floating-controls{left:var(--space-3);right:var(--space-3);bottom:var(--space-4);width:auto;transform:translate(0);justify-content:space-around}.floating-controls .divider{display:none}.chapter-pill{min-width:auto;flex:0}.reading-progress-bar{height:3px}.sidebar-header{padding:var(--space-4)}.sidebar-content{padding:var(--space-2)}.toc-item{padding:var(--space-3) var(--space-4);font-size:var(--text-sm)}.settings-panel{max-height:85vh}.settings-header,.settings-body{padding:var(--space-4)}.font-grid{grid-template-columns:repeat(2,1fr)}}@media(hover:none)and (pointer:coarse){.btn-icon{min-width:44px;min-height:44px}.toc-item{min-height:44px;display:flex;align-items:center}.btn:hover,.toc-item:hover{transform:none}.floating-controls{opacity:1}}