:root{--color-primary: #7C5E14;--color-primary-hover: #6A4F11;--color-primary-light: rgba(124, 94, 20, .08);--color-primary-ring: rgba(124, 94, 20, .2);--color-bg: #FAFAF8;--color-bg-alt: #F4F3F0;--color-surface: #FFFFFF;--color-surface-hover: #F9F8F6;--color-text: #1A1917;--color-text-secondary: #52504C;--color-text-muted: #8A8782;--color-border: #E5E3DE;--color-border-light: #EDECEA;--color-success: #1A7A42;--color-success-light: #ECFDF3;--color-success-ring: rgba(26, 122, 66, .15);--color-error: #B42318;--color-error-light: #FEF3F2;--color-error-ring: rgba(180, 35, 24, .15);--shadow-xs: 0 1px 2px rgba(26, 25, 23, .04);--shadow-sm: 0 1px 3px rgba(26, 25, 23, .06), 0 1px 2px rgba(26, 25, 23, .04);--shadow-md: 0 4px 8px -1px rgba(26, 25, 23, .06), 0 2px 4px -2px rgba(26, 25, 23, .04);--shadow-lg: 0 10px 24px -3px rgba(26, 25, 23, .08), 0 4px 8px -4px rgba(26, 25, 23, .04);--shadow-xl: 0 20px 40px -4px rgba(26, 25, 23, .1), 0 8px 16px -6px rgba(26, 25, 23, .06);--radius-sm: 8px;--radius-md: 10px;--radius-lg: 14px;--radius-xl: 18px;--font-serif: "DM Serif Display", Georgia, serif;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--transition: .15s cubic-bezier(.4, 0, .2, 1);--transition-slow: .25s cubic-bezier(.4, 0, .2, 1)}@media(prefers-color-scheme:dark){:root{--color-primary: #D4A843;--color-primary-hover: #E0B94E;--color-primary-light: rgba(212, 168, 67, .1);--color-primary-ring: rgba(212, 168, 67, .25);--color-bg: #141210;--color-bg-alt: #1E1C18;--color-surface: #232119;--color-surface-hover: #2A2820;--color-text: #F5F4F0;--color-text-secondary: #B0ADA6;--color-text-muted: #706D66;--color-border: #36342E;--color-border-light: #2E2C26;--color-success: #34D058;--color-success-light: rgba(52, 208, 88, .1);--color-success-ring: rgba(52, 208, 88, .2);--color-error: #F85149;--color-error-light: rgba(248, 81, 73, .1);--color-error-ring: rgba(248, 81, 73, .2);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .2);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3), 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 8px -1px rgba(0, 0, 0, .3), 0 2px 4px -2px rgba(0, 0, 0, .2);--shadow-lg: 0 10px 24px -3px rgba(0, 0, 0, .4), 0 4px 8px -4px rgba(0, 0, 0, .2);--shadow-xl: 0 20px 40px -4px rgba(0, 0, 0, .5), 0 8px 16px -6px rgba(0, 0, 0, .3)}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}#app{max-width:600px;margin:0 auto;padding:0 20px 48px;min-height:100vh;display:flex;flex-direction:column}.app-header{padding:40px 0 32px;text-align:center;position:relative}.header-content{display:flex;flex-direction:column;align-items:center;gap:6px}.logo-row{display:flex;align-items:center;gap:10px}.logo-icon{color:var(--color-primary)}.logo{font-family:var(--font-serif);font-size:2rem;font-weight:400;color:var(--color-text);letter-spacing:-.01em}.tagline{font-size:.875rem;color:var(--color-text-muted);font-weight:400}#btn-settings{position:absolute;right:0;top:40px;color:var(--color-text-muted);transition:color var(--transition),background var(--transition);width:40px;height:40px;display:flex;align-items:center;justify-content:center}#btn-settings:hover{color:var(--color-text);background:var(--color-primary-light)}#btn-settings:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;border-radius:var(--radius-sm)}.app-main{flex:1;display:flex;flex-direction:column;gap:12px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow var(--transition),border-color var(--transition)}.card:hover{box-shadow:var(--shadow-md)}.card-header{display:flex;align-items:center;gap:12px;padding:20px 20px 0}.card-icon{width:36px;height:36px;border-radius:var(--radius-md);background:var(--color-primary-light);display:flex;align-items:center;justify-content:center;color:var(--color-primary);flex-shrink:0}.card-icon.success{background:var(--color-success-light);color:var(--color-success)}.card-icon.error{background:var(--color-error-light);color:var(--color-error)}.card-header h2{font-family:var(--font-serif);font-size:1.125rem;font-weight:400;flex:1}.badge{background:var(--color-primary-light);color:var(--color-primary);font-size:.75rem;font-weight:500;padding:2px 8px;border-radius:20px}.card-body{padding:16px 20px 20px}.drop-zone{border:2px dashed var(--color-border);border-radius:var(--radius-md);padding:48px 24px;text-align:center;cursor:pointer;transition:all var(--transition);background:var(--color-bg)}.drop-zone:hover,.drop-zone.dragover{border-color:var(--color-primary);background:var(--color-primary-light)}.drop-zone.dragover{transform:scale(1.01)}.drop-zone:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.drop-icon{color:var(--color-text-muted);margin-bottom:12px}.drop-text{font-size:.9375rem;font-weight:500;color:var(--color-text);margin-bottom:4px}.drop-subtext{font-size:.8125rem;color:var(--color-text-muted)}.drop-link{color:var(--color-primary);cursor:pointer;text-decoration:underline;text-underline-offset:2px}.drop-link:hover{text-decoration-thickness:2px}.drop-hint{font-size:.75rem;color:var(--color-text-muted);margin-top:8px}.file-info{display:flex;align-items:center;gap:12px;padding:14px 16px;background:var(--color-bg);border-radius:var(--radius-md);border:1px solid var(--color-border)}.file-icon{color:var(--color-primary);flex-shrink:0}.file-details{flex:1;min-width:0}.file-name{font-weight:500;font-size:.875rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-size{font-size:.75rem;color:var(--color-text-muted)}.chapter-list{list-style:none;max-height:360px;overflow-y:auto}.chapter-list li{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--color-border-light);font-size:.875rem}.chapter-list li:last-child{border-bottom:none}.chapter-list li.generated{background:var(--color-success-light);margin:4px -20px;padding:10px 20px;border-radius:var(--radius-md);border-bottom:none}.chapter-number{width:28px;height:28px;border-radius:50%;background:var(--color-bg-alt);display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:600;color:var(--color-primary);flex-shrink:0}.chapter-list li.generated .chapter-number{background:var(--color-success);color:#fff}.chapter-title{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.chapter-pages{font-size:.6875rem;color:var(--color-text-muted);flex-shrink:0}.chapter-actions-row{display:flex;gap:4px;flex-shrink:0}.btn-chapter{background:none;border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:6px 10px;cursor:pointer;color:var(--color-text-secondary);font-size:.75rem;font-family:var(--font-sans);font-weight:500;display:flex;align-items:center;gap:4px;transition:all var(--transition);white-space:nowrap;min-height:32px}.btn-chapter:hover:not(:disabled){background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.btn-chapter:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.btn-chapter:disabled{opacity:.35;cursor:not-allowed}.btn-chapter.btn-gen{color:var(--color-primary);border-color:var(--color-primary)}.btn-chapter.btn-gen:hover:not(:disabled){background:var(--color-primary);color:#fff}.btn-chapter.btn-dl{color:var(--color-success);border-color:var(--color-success)}.btn-chapter.btn-dl:hover:not(:disabled){background:var(--color-success);color:#fff}.btn-chapter svg{width:14px;height:14px}.chapter-actions{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.875rem;font-weight:500;cursor:pointer;transition:all var(--transition);min-height:40px}.btn:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.btn:disabled{opacity:.35;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover);box-shadow:var(--shadow-sm)}.btn-primary:active:not(:disabled){transform:scale(.98)}.btn-success{background:var(--color-success);color:#fff}.btn-success:hover:not(:disabled){filter:brightness(.9);box-shadow:var(--shadow-sm)}.btn-success:active:not(:disabled){transform:scale(.98)}.btn-ghost{background:transparent;color:var(--color-text-secondary);padding:8px 16px}.btn-ghost:hover:not(:disabled){background:var(--color-bg-alt);color:var(--color-text)}.btn-full{width:100%}.btn-icon{background:none;border:none;cursor:pointer;padding:8px;border-radius:var(--radius-sm);color:inherit;transition:background var(--transition),color var(--transition);display:flex;align-items:center;justify-content:center;min-width:40px;min-height:40px}.btn-icon:hover{background:var(--color-primary-light);color:var(--color-primary)}.btn-icon:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.btn-icon-small{background:none;border:none;cursor:pointer;padding:6px;border-radius:var(--radius-sm);color:var(--color-text-muted);transition:all var(--transition);display:flex;align-items:center;justify-content:center;min-width:32px;min-height:32px}.btn-icon-small:hover{background:var(--color-error-light);color:var(--color-error)}.btn-icon-small:focus-visible{outline:2px solid var(--color-error);outline-offset:2px}.progress-container{margin-bottom:16px}.progress-bar{height:6px;background:var(--color-bg-alt);border-radius:3px;overflow:hidden;margin-bottom:8px}.progress-fill{height:100%;background:var(--color-primary);border-radius:3px;transition:width .3s ease}.progress-info{display:flex;justify-content:space-between;font-size:.8125rem}#progress-text{color:var(--color-text-secondary)}#progress-percent{font-weight:600;color:var(--color-primary);font-variant-numeric:tabular-nums}.progress-chapter{font-size:.8125rem;color:var(--color-text-secondary);padding:8px 0}.progress-log{max-height:120px;overflow-y:auto;font-size:.75rem;color:var(--color-text-muted);font-family:SF Mono,Fira Code,Cascadia Code,monospace;background:var(--color-bg-alt);border-radius:var(--radius-sm);padding:12px;margin-top:12px;border:1px solid var(--color-border-light)}.progress-log div{padding:2px 0;line-height:1.5}.error-message{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:16px;line-height:1.6}.hidden{display:none!important}.modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px}.modal-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#1a191780;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{position:relative;background:var(--color-surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);width:100%;max-width:440px;max-height:80vh;overflow-y:auto;border:1px solid var(--color-border)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 16px;border-bottom:1px solid var(--color-border-light)}.modal-header h3{font-family:var(--font-serif);font-size:1.125rem;font-weight:400}.modal-body{padding:20px;display:flex;flex-direction:column;gap:20px}.setting-section{padding-top:16px;border-top:1px solid var(--color-border-light)}.setting-section:first-child{padding-top:0;border-top:none}.setting-section-title{font-family:var(--font-sans);font-size:.8125rem;font-weight:600;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.04em;margin-bottom:14px;display:flex;align-items:center;gap:8px}.setting-group{display:flex;flex-direction:column;gap:6px}.setting-group label{font-size:.8125rem;font-weight:500;color:var(--color-text-secondary)}.setting-hint{font-size:.75rem;color:var(--color-text-muted);line-height:1.4}input[type=text],input[type=password],select{width:100%;padding:10px 14px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.875rem;background:var(--color-surface);color:var(--color-text);transition:border-color var(--transition),box-shadow var(--transition);min-height:40px}input[type=text]:focus,input[type=password]:focus,select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-ring)}input[type=range]{width:100%;height:6px;padding:0;cursor:pointer;accent-color:var(--color-primary)}select{cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2352504C' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px}.style-presets{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.style-preset{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 6px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);cursor:pointer;transition:all var(--transition);font-family:var(--font-sans);min-height:56px}.style-preset:hover{border-color:var(--color-primary);background:var(--color-primary-light)}.style-preset:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.style-preset.active{border-color:var(--color-primary);background:var(--color-primary-light);color:var(--color-primary)}.style-preset svg{color:var(--color-text-muted)}.style-preset.active svg{color:var(--color-primary)}.style-name{font-size:.6875rem;font-weight:500}.slider-container{display:flex;align-items:center;gap:12px}.slider-value{font-size:.75rem;font-weight:500;color:var(--color-text-secondary);min-width:48px;text-align:right;font-variant-numeric:tabular-nums}.toggle-container{display:flex;align-items:center;gap:12px}.toggle{position:relative;display:inline-block;width:44px;height:24px;flex-shrink:0}.toggle input{opacity:0;width:0;height:0;position:absolute}.toggle-slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background:var(--color-border);border-radius:12px;transition:background var(--transition)}.toggle-slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background:#fff;border-radius:50%;transition:transform var(--transition);box-shadow:var(--shadow-xs)}.toggle input:checked+.toggle-slider{background:var(--color-primary)}.toggle input:checked+.toggle-slider:before{transform:translate(20px)}.toggle input:focus-visible+.toggle-slider{outline:2px solid var(--color-primary);outline-offset:2px}.toggle-info{display:flex;flex-direction:column;gap:1px}.toggle-label{font-size:.8125rem;font-weight:500;color:var(--color-text)}.app-footer{text-align:center;padding:32px 0 16px;font-size:.75rem;color:var(--color-text-muted)}.app-footer a{color:var(--color-primary);text-decoration:none;text-underline-offset:2px}.app-footer a:hover{text-decoration:underline}.spin-icon{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.toggle-small{width:36px;height:20px}.toggle-small .toggle-slider:before{height:14px;width:14px}.toggle-small input:checked+.toggle-slider:before{transform:translate(16px)}.voice-modifier-sub,.advanced-voice-sub{margin-top:12px;padding-top:12px;border-top:1px solid var(--color-border-light);display:flex;flex-direction:column;gap:12px;transition:opacity var(--transition)}@media(max-width:480px){#app{padding:0 16px 32px}.app-header{padding:32px 0 24px}.logo{font-size:1.75rem}.card-header{padding:16px 16px 0}.card-body{padding:12px 16px 16px}.drop-zone{padding:32px 16px}.style-presets{grid-template-columns:repeat(2,1fr)}.modal-content{max-height:90vh}.modal-body{padding:16px}}