:root{--primary: hsl(171, 75%, 28%);--primary-hover: hsl(171, 75%, 22%);--primary-light: hsl(171, 50%, 94%);--secondary: hsl(200, 60%, 25%);--accent: hsl(35, 100%, 50%);--background: hsl(210, 40%, 98%);--card-bg: hsl(0, 0%, 100%);--text-main: hsl(215, 28%, 17%);--text-muted: hsl(215, 16%, 47%);--border: hsl(214, 32%, 91%);--radius-sm: 6px;--radius-md: 12px;--radius-lg: 20px;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .05);--shadow-md: 0 4px 20px -2px rgba(15, 23, 42, .08);--shadow-lg: 0 10px 30px -4px rgba(15, 23, 42, .12);--transition-smooth: all .3s cubic-bezier(.4, 0, .2, 1);--header-height: 80px}body[data-theme=dark]{--background: hsl(215, 28%, 10%);--card-bg: hsl(215, 28%, 14%);--text-main: hsl(210, 40%, 98%);--text-muted: hsl(215, 16%, 70%);--border: hsl(215, 28%, 20%);--primary-light: rgba(13, 148, 136, .15);--shadow-md: 0 4px 20px -2px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 30px -4px rgba(0, 0, 0, .4)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--background);color:var(--text-main);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app-container{display:flex;flex-direction:column;min-height:100vh}main{flex-grow:1;padding:2.5rem 1.5rem;max-width:1200px;width:100%;margin:0 auto}a{color:inherit;text-decoration:none}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.625rem 1.25rem;font-size:.9rem;font-weight:550;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:var(--transition-smooth)}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-hover);transform:translateY(-2px);box-shadow:0 4px 12px #0d948859}.btn-secondary{background-color:var(--card-bg);border:1px solid var(--border);color:var(--text-main)}.btn-secondary:hover{background-color:var(--primary-light);color:var(--primary);border-color:var(--primary)}.spinner{width:1.25rem;height:1.25rem;border:3px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin 1s ease-in-out infinite}@keyframes spin{to{transform:rotate(360deg)}}.site-header{position:relative;top:0;z-index:100;background-color:#ffffffd9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}body[data-theme=dark] .site-header{background-color:#1e293bd9}.header-container{display:flex;flex-direction:column;max-width:1200px;margin:0 auto;padding:.75rem 1.5rem;gap:1rem}@media (min-width: 768px){.header-container{flex-direction:row;align-items:center;justify-content:space-between;height:var(--header-height);gap:2rem}}.logo-section{display:flex;align-items:center;gap:.75rem}.logo-section img.brand-logo{height:60px;object-fit:contain}.logo-section img.favicon-logo{height:48px;object-fit:contain}.header-actions{display:flex;flex-direction:column;gap:1rem;width:100%}@media (min-width: 768px){.header-actions{flex-direction:row;align-items:center;width:auto;flex-grow:1;justify-content:flex-end}}.theme-toggle-btn{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;border:1px solid var(--border);background:var(--card-bg);color:var(--text-main);cursor:pointer;transition:var(--transition-smooth);box-shadow:var(--shadow-sm)}.theme-toggle-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}.theme-toggle-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.nav-menu{display:flex;list-style:none;gap:1.5rem;align-items:center}.nav-item{position:relative;font-weight:550;color:var(--text-main);padding:.5rem .25rem;transition:var(--transition-smooth)}.nav-item:hover,.nav-item.active{color:var(--primary)}.nav-item:after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background-color:var(--primary);transition:var(--transition-smooth)}.nav-item:hover:after,.nav-item.active:after{width:100%}.dropdown-container{position:relative}.dropdown-toggle{cursor:pointer;display:flex;align-items:center;gap:.25rem}.dropdown-menu{position:absolute;top:100%;left:0;background-color:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:.5rem;min-width:220px;max-height:300px;margin-top:.5rem;opacity:0;visibility:hidden;transform:translateY(10px);transition:var(--transition-smooth);list-style:none;overflow-y:auto;z-index:1000}.dropdown-container:hover .dropdown-menu,.dropdown-container.open .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-item{padding:.625rem 1rem;border-radius:var(--radius-sm);transition:var(--transition-smooth);cursor:pointer;font-size:.95rem}.dropdown-item:hover{background-color:var(--primary-light);color:var(--primary)}.search-wrapper{position:relative;display:flex;width:100%;max-width:400px;background-color:var(--background);border:1px solid var(--border);border-radius:var(--radius-md);padding:.25rem;transition:var(--transition-smooth)}.search-wrapper:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.search-input{flex-grow:1;border:none;background:transparent;padding:.5rem .75rem;outline:none;color:var(--text-main);font-size:.9rem}.search-btn{background-color:var(--primary);border:none;color:#fff;border-radius:var(--radius-md);width:38px;height:38px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition-smooth)}.search-btn:hover{background-color:var(--primary-hover)}.search-clear-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:.75rem;min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:var(--transition-smooth)}.search-clear-btn:hover{background-color:var(--border);color:var(--text-main)}.search-clear-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.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}.hero-section{text-align:center;margin-bottom:3rem;padding:3rem 1.5rem;background:linear-gradient(135deg,var(--primary-light) 0%,rgba(255,255,255,.4) 100%);border-radius:var(--radius-lg);border:1px solid var(--border)}.hero-section h1{font-size:2.25rem;font-weight:800;color:var(--secondary);margin-bottom:.75rem;letter-spacing:-.025em}.hero-section p{font-size:1.1rem;color:var(--text-muted);max-width:600px;margin:0 auto}.page-heading-section{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;border-bottom:2px solid var(--border);padding-bottom:.75rem}.page-title{font-size:1.5rem;font-weight:700;color:var(--secondary)}.results-count{font-size:.9rem;color:var(--text-muted);font-weight:500}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1.75rem}.book-card{background-color:var(--card-bg);border-radius:var(--radius-md);border:1px solid var(--border);box-shadow:var(--shadow-sm);overflow:hidden;display:flex;flex-direction:column;transition:var(--transition-smooth)}.book-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:#0d94884d}.card-img-wrapper{position:relative;width:100%;height:220px;background-color:#f1f5f9;overflow:hidden}.card-img-wrapper img{width:100%;height:100%;object-fit:cover;transition:var(--transition-smooth)}.book-card:hover .card-img-wrapper img{transform:scale(1.05)}.card-content{padding:1.25rem;display:flex;flex-direction:column;flex-grow:1;gap:.5rem}.card-content h3.book-title{font-size:1.05rem;font-weight:700;line-height:1.4;color:var(--text-main);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;height:2.8rem;margin-bottom:.25rem}.card-meta-item{font-size:.85rem;color:var(--text-muted)}.card-meta-item strong{color:var(--text-main)}.card-footer{margin-top:auto;padding-top:1rem}.card-btn{width:100%}.no-results{text-align:center;padding:4rem 2rem;background-color:var(--card-bg);border-radius:var(--radius-md);border:1px solid var(--border);color:var(--text-muted)}.no-results svg{margin-bottom:1rem;stroke:var(--text-muted)}.back-link{display:inline-flex;align-items:center;gap:.5rem;font-weight:550;color:var(--primary);margin-bottom:1.5rem;transition:var(--transition-smooth)}.back-link:hover{color:var(--primary-hover);transform:translate(-4px)}.detail-layout{display:grid;grid-template-columns:1fr;gap:2.5rem;background-color:var(--card-bg);border-radius:var(--radius-lg);border:1px solid var(--border);padding:2rem;box-shadow:var(--shadow-md)}@media (min-width: 768px){.detail-layout{grid-template-columns:320px 1fr}}.detail-image-section{display:flex;flex-direction:column;align-items:center;gap:1.5rem}.detail-image-wrapper{width:100%;max-width:320px;aspect-ratio:2 / 3;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-lg);background-color:#f1f5f9}.detail-image-wrapper img{width:100%;height:100%;object-fit:cover}.detail-info-section{display:flex;flex-direction:column;gap:1.5rem}.detail-header{border-bottom:1px solid var(--border);padding-bottom:1rem}.detail-header h1{font-size:2rem;font-weight:800;color:var(--secondary);line-height:1.3;margin-bottom:.5rem}.detail-category{display:inline-block;background-color:var(--primary-light);color:var(--primary);padding:.35rem .75rem;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600}.metadata-grid{display:grid;grid-template-columns:1fr;gap:1rem}@media (min-width: 480px){.metadata-grid{grid-template-columns:1fr 1fr}}.metadata-item{border-left:3px solid var(--primary);padding-left:.75rem}.metadata-label{font-size:.8rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.25rem}.metadata-value{font-weight:600;color:var(--text-main)}.description-box{background-color:var(--background);border-radius:var(--radius-md);padding:1.5rem;border:1px solid var(--border)}.description-box h3{font-size:1.1rem;font-weight:700;color:var(--secondary);margin-bottom:.75rem}.description-box p{color:var(--text-main);line-height:1.7}.actions-layout{display:flex;flex-direction:column;gap:2rem;border-top:1px solid var(--border);padding-top:1.5rem}@media (min-width: 600px){.actions-layout{flex-direction:row;align-items:center;justify-content:space-between}}.qr-card{display:flex;align-items:center;gap:1.25rem;background-color:var(--background);padding:1rem 1.25rem;border-radius:var(--radius-md);border:1px solid var(--border)}.qr-canvas-container{background:#fff;padding:.5rem;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}.qr-text h4{font-size:.95rem;font-weight:700;color:var(--text-main);margin-bottom:.25rem}.qr-text p{font-size:.8rem;color:var(--text-muted);max-width:180px}.download-wrapper{display:flex;flex-direction:column;gap:.5rem}.btn-download{font-size:1.05rem;padding:.875rem 1.75rem;min-width:180px;gap:.5rem}.error-message{font-size:.85rem;color:#ef4343;display:flex;align-items:center;gap:.25rem}.about-hero{text-align:center;margin-bottom:3rem}.about-hero h1{font-size:2.25rem;font-weight:800;color:var(--secondary);line-height:1.3;margin-bottom:1.5rem}.about-hero-img{width:100%;max-height:450px;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}.about-intro-grid{display:grid;grid-template-columns:1fr;gap:3rem;margin-bottom:4rem}@media (min-width: 768px){.about-intro-grid{grid-template-columns:1.2fr 1fr;align-items:center}}.about-text-content h2{font-size:1.75rem;font-weight:700;color:var(--secondary);margin-bottom:1rem}.about-text-content p{font-size:1.05rem;color:var(--text-main);line-height:1.7;margin-bottom:1rem}.video-frame-container{position:relative;width:100%;aspect-ratio:16 / 9;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-md);background-color:#000}.video-frame-container iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}.timeline-section{margin-bottom:4rem}.timeline-section h2{font-size:1.75rem;font-weight:700;color:var(--secondary);text-align:center;margin-bottom:3rem}.timeline-container{position:relative;max-width:800px;margin:0 auto}.timeline-container:after{content:"";position:absolute;width:3px;background-color:var(--border);top:0;bottom:0;left:20px;margin-left:-1.5px}@media (min-width: 768px){.timeline-container:after{left:50%}}.timeline-item{padding:1rem 0 2rem 50px;position:relative;width:100%}@media (min-width: 768px){.timeline-item{padding:2rem 0;width:50%}.timeline-item-left{left:0;padding-right:40px;padding-left:0;text-align:right}.timeline-item-right{left:50%;padding-left:40px}}.timeline-dot{width:20px;height:20px;border-radius:50%;background-color:var(--primary);border:4px solid var(--card-bg);position:absolute;left:10px;top:15px;z-index:10;box-shadow:var(--shadow-sm)}@media (min-width: 768px){.timeline-dot{left:auto;right:-10px;top:36px}.timeline-item-right .timeline-dot{left:-10px}}.timeline-card{background-color:var(--card-bg);padding:1.5rem;border-radius:var(--radius-md);border:1px solid var(--border);box-shadow:var(--shadow-md)}.timeline-card h3.timeline-date{font-size:1.15rem;font-weight:800;color:var(--primary);margin-bottom:.5rem}.timeline-card p{font-size:.95rem;color:var(--text-main);line-height:1.6;margin-bottom:1rem}.timeline-media{border-radius:var(--radius-sm);overflow:hidden;box-shadow:var(--shadow-sm)}.timeline-media img{width:100%;display:block}.site-footer{background-color:var(--secondary);color:#ffffffd9;border-top:1px solid var(--border);padding:3rem 1.5rem 1.5rem;margin-top:auto}.footer-content{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr;gap:2rem;margin-bottom:2rem}@media (min-width: 768px){.footer-content{grid-template-columns:180px 1fr;align-items:flex-start}}.footer-logo-container{display:flex;justify-content:center}@media (min-width: 768px){.footer-logo-container{justify-content:flex-start}}.footer-logo-container img{height:90px;object-fit:contain;background:#fff;padding:.5rem;border-radius:var(--radius-md)}.footer-info{display:flex;flex-direction:column;gap:.75rem}.footer-info h3{color:#fff;font-size:1.1rem;font-weight:700;margin-bottom:.25rem}.footer-contacts{display:grid;grid-template-columns:1fr;gap:.5rem 2rem;font-size:.9rem}@media (min-width: 600px){.footer-contacts{grid-template-columns:1fr 1fr}}.contact-line span{color:#ffffff80;font-weight:500;margin-right:.25rem}.contact-line a{color:#fff;text-decoration:underline;transition:var(--transition-smooth)}.contact-line a:hover{color:var(--primary-light)}.footer-copyright{border-top:1px solid rgba(255,255,255,.1);padding-top:1.5rem;text-align:center;font-size:.8rem;color:#ffffff80}.audiobook-player-section{background-color:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-md);padding:1.75rem;margin-top:2rem;box-shadow:var(--shadow-md);display:flex;flex-direction:column;gap:1.5rem}.player-main-header{border-bottom:2px solid var(--primary-light);padding-bottom:.75rem;margin-bottom:.25rem;display:flex;align-items:center;gap:.5rem;color:var(--primary)}.player-main-header h2{font-size:1.4rem;font-weight:700}.audio-controls-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;padding:.5rem 0}.player-btn{background:none;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition-smooth);color:var(--text-main);padding:.5rem;border-radius:50%}.player-btn:hover{background-color:var(--primary-light);color:var(--primary)}.player-btn-play{background-color:var(--primary);color:#fff;width:3rem;height:3rem;box-shadow:0 4px 10px #0d94884d}.player-btn-play:hover{background-color:var(--primary-hover);color:#fff;transform:scale(1.05)}.timeline-control{display:flex;flex-direction:column;gap:.5rem;width:100%}.timeline-bar-wrapper{display:flex;align-items:center;gap:.75rem;width:100%}.timeline-slider{flex-grow:1;height:6px;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--border);border-radius:3px;outline:none;cursor:pointer}.timeline-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:var(--primary);cursor:pointer;transition:var(--transition-smooth)}.timeline-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.time-label{font-size:.85rem;font-weight:550;color:var(--text-muted);min-width:45px;text-align:center}.volume-speed-control{display:flex;align-items:center;gap:1.5rem}.volume-control-wrapper{display:flex;align-items:center;gap:.5rem}.volume-slider{width:80px;height:4px;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--border);border-radius:2px;outline:none;cursor:pointer}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:12px;height:12px;border-radius:50%;background:var(--primary);cursor:pointer}.speed-control-wrapper{display:flex;align-items:center;gap:.5rem}.speed-select{padding:.25rem .5rem;border-radius:var(--radius-sm);border:1px solid var(--border);background-color:var(--card-bg);color:var(--text-main);font-size:.85rem;font-weight:550;outline:none;cursor:pointer;transition:var(--transition-smooth)}.speed-select:focus{border-color:var(--primary)}.chapters-layout{display:flex;flex-direction:column;gap:.75rem}.chapters-title-bar{font-weight:700;font-size:1.1rem;color:var(--text-main);margin-top:.5rem}.chapters-list{display:flex;flex-direction:column;gap:.5rem;max-height:250px;overflow-y:auto;padding-right:.25rem}.chapter-item-btn{width:100%;display:flex;align-items:center;justify-content:space-between;padding:.75rem 1rem;background-color:var(--background);border:1px solid var(--border);border-radius:var(--radius-md);cursor:pointer;text-align:left;transition:var(--transition-smooth);font-family:inherit}.chapter-item-btn:hover{background-color:var(--primary-light);border-color:var(--primary)}.chapter-item-btn.active{background-color:var(--primary-light);border-color:var(--primary);color:var(--primary);font-weight:700}.chapter-title-text{font-size:.95rem}.chapter-duration{font-size:.85rem;color:var(--text-muted)}.chapter-item-btn.active .chapter-duration{color:var(--primary)}.player-buffering{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--primary);font-weight:550}.player-error{background-color:#fef1f1;border:1px solid hsl(0,84%,90%);color:#bc1010;padding:.75rem 1rem;border-radius:var(--radius-md);font-size:.9rem;display:flex;align-items:center;gap:.5rem}.player-loading,.player-empty{display:flex;align-items:center;gap:.5rem;padding:.85rem 1rem;border-radius:var(--radius-md);font-size:.9rem;font-weight:550}.player-loading{background-color:var(--primary-light);border:1px solid rgba(13,148,136,.25);color:var(--primary)}.player-loading svg{animation:spin 1s linear infinite}.player-empty{background-color:var(--background);border:1px solid var(--border);color:var(--text-muted)}.auth-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:var(--bg-alt);padding:2rem}.auth-card{background:#fffc;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);padding:2.5rem;border-radius:var(--radius-lg);box-shadow:0 8px 32px #1f268726;border:1px solid rgba(255,255,255,.5);width:100%;max-width:400px}.auth-title{text-align:center;color:var(--primary);margin-bottom:2rem;font-size:1.8rem;font-weight:800}.auth-error{background-color:#fee2e2;color:#b91c1c;padding:.75rem;border-radius:var(--radius-sm);margin-bottom:1.5rem;text-align:center;font-size:.9rem}.auth-form .form-group{margin-bottom:1.5rem}.auth-form label{display:block;margin-bottom:.5rem;color:var(--text-main);font-weight:600;font-size:.95rem}.auth-form input{width:100%;padding:.75rem 1rem;border:1px solid var(--border);border-radius:var(--radius-md);background:#fff;transition:var(--transition-smooth);font-family:inherit}.auth-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #0056b31a}.auth-button{width:100%;padding:.875rem;background-color:var(--primary);color:#fff;border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:700;cursor:pointer;transition:var(--transition-smooth)}.auth-button:hover{background-color:var(--primary-light);transform:translateY(-2px)}.auth-redirect{margin-top:1.5rem;text-align:center;font-size:.95rem;color:var(--text-light)}.auth-redirect a{color:var(--primary);font-weight:600}.auth-redirect a:hover{text-decoration:underline}.profile-container{display:flex;justify-content:center;padding:4rem 2rem;min-height:calc(100vh - 200px)}.profile-card{background:#fff;padding:3rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:100%;max-width:500px;text-align:center}.profile-card h2{color:var(--primary);margin-bottom:2rem}.profile-info{margin-bottom:2rem;font-size:1.1rem}.logout-button{padding:.75rem 2rem;background-color:#ef4444;color:#fff;border:none;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:var(--transition-smooth)}.logout-button:hover{background-color:#dc2626}.loading-spinner{display:flex;justify-content:center;align-items:center;min-height:50vh;font-size:1.2rem;color:var(--primary);font-weight:600}.activity-page{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:3rem}.activity-page-header{text-align:center;padding:2.5rem 1.5rem;background:linear-gradient(135deg,var(--primary-light) 0%,rgba(255,255,255,.4) 100%);border-radius:var(--radius-lg);border:1px solid var(--border)}body[data-theme=dark] .activity-page-header{background:linear-gradient(135deg,#0d948826,#1e293b66)}.activity-page-title{font-size:2rem;font-weight:800;color:var(--secondary);margin-bottom:.5rem;letter-spacing:-.025em}.activity-page-subtitle{color:var(--text-muted);font-size:1.05rem}.activity-page-subtitle strong{color:var(--primary)}.activity-section{display:flex;flex-direction:column;gap:1.5rem}.activity-section-header{display:flex;align-items:center;justify-content:space-between;border-bottom:2px solid var(--border);padding-bottom:.75rem}.activity-section-title-group{display:flex;align-items:center;gap:.625rem}.activity-section-icon{color:var(--primary);flex-shrink:0}.activity-section-heading{font-size:1.4rem;font-weight:700;color:var(--secondary)}.activity-section-count{font-size:.875rem;font-weight:500;color:var(--text-muted);background-color:var(--primary-light);color:var(--primary);padding:.25rem .75rem;border-radius:999px;border:1px solid rgba(13,148,136,.25)}.activity-card-list{list-style:none;display:flex;flex-direction:column;gap:1rem}.activity-card{display:flex;gap:1.25rem;background-color:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-md);padding:1.25rem;box-shadow:var(--shadow-sm);transition:var(--transition-smooth);align-items:flex-start}.activity-card:hover{box-shadow:var(--shadow-md);border-color:#0d94884d;transform:translateY(-2px)}.activity-card-cover{flex-shrink:0;width:76px;height:110px;border-radius:var(--radius-sm);overflow:hidden;background-color:#f1f5f9;box-shadow:var(--shadow-sm)}.activity-card-cover img{width:100%;height:100%;object-fit:cover}.activity-card-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:.4rem}.activity-card-category{display:inline-block;background-color:var(--primary-light);color:var(--primary);padding:.2rem .6rem;border-radius:var(--radius-sm);font-size:.78rem;font-weight:600;align-self:flex-start}.activity-card-title{font-size:1rem;font-weight:700;color:var(--text-main);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.activity-card-author{font-size:.85rem;color:var(--text-muted)}.activity-progress-wrapper{display:flex;align-items:center;gap:.625rem;margin-top:.25rem}.activity-progress-track{flex:1;height:8px;background-color:var(--border);border-radius:999px;overflow:hidden}.activity-progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),hsl(171,75%,40%));border-radius:999px;transition:width .4s ease;min-width:4px}.activity-progress-label{font-size:.8rem;font-weight:600;color:var(--primary);min-width:36px;text-align:right;flex-shrink:0}.activity-card-timestamp{display:flex;align-items:center;gap:.35rem;font-size:.78rem;color:var(--text-muted)}.activity-card-actions{display:flex;align-items:center;gap:.625rem;margin-top:.5rem;flex-wrap:wrap}.activity-card-btn{font-size:.85rem;padding:.5rem 1rem;gap:.375rem}.btn-ghost{background:none;border:1px solid var(--border);color:var(--text-muted);display:inline-flex;align-items:center;justify-content:center;padding:.5rem;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition-smooth);font-size:.85rem}.btn-ghost:hover{background-color:#fef1f1;border-color:#f7a1a1;color:#d31212}.btn-ghost:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.saved-book-card{display:flex;gap:1.25rem;background-color:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-md);padding:1.25rem;box-shadow:var(--shadow-sm);transition:var(--transition-smooth);align-items:flex-start}.saved-book-card:hover{box-shadow:var(--shadow-md);border-color:#0d94884d;transform:translateY(-2px)}.saved-book-card-cover{flex-shrink:0;width:76px;height:110px;border-radius:var(--radius-sm);overflow:hidden;background-color:#f1f5f9;box-shadow:var(--shadow-sm);position:relative}.saved-book-card-cover img{width:100%;height:100%;object-fit:cover}.saved-book-badge{position:absolute;top:4px;right:4px;background-color:var(--primary);color:#fff;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px #0003}.saved-book-card-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:.4rem}.saved-book-confirm{display:flex;align-items:center;gap:.5rem;background-color:#fff7eb;border:1px solid hsl(35,100%,80%);border-radius:var(--radius-sm);padding:.375rem .75rem;flex-wrap:wrap;animation:fadeIn .15s ease}@keyframes fadeIn{0%{opacity:0;transform:scale(.97)}to{opacity:1;transform:scale(1)}}.saved-book-confirm-icon{color:#b36800;flex-shrink:0}.saved-book-confirm-text{font-size:.8rem;font-weight:600;color:#995900}.btn-danger-sm{font-size:.78rem;font-weight:600;padding:.25rem .625rem;background-color:#ed2c2c;color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition-smooth)}.btn-danger-sm:hover{background-color:#d31212}.btn-danger-sm:focus-visible{outline:2px solid hsl(0,84%,55%);outline-offset:2px}.btn-ghost-sm{font-size:.78rem;font-weight:600;padding:.25rem .625rem;background:none;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;transition:var(--transition-smooth)}.btn-ghost-sm:hover{background-color:var(--border);color:var(--text-main)}.btn-ghost-sm:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.activity-loading{display:flex;align-items:center;gap:.75rem;padding:1.5rem;background-color:var(--primary-light);border:1px solid rgba(13,148,136,.25);border-radius:var(--radius-md);color:var(--primary);font-weight:550;font-size:.95rem}.activity-error{display:flex;align-items:flex-start;gap:.875rem;padding:1.25rem;background-color:#fef1f1;border:1px solid hsl(0,84%,88%);border-radius:var(--radius-md);color:#bc1010}.activity-error strong{display:block;margin-bottom:.2rem}.activity-error p{font-size:.9rem;margin:0}.activity-empty{text-align:center;padding:3.5rem 2rem;background-color:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-muted)}.activity-empty svg{margin-bottom:1rem;color:var(--text-muted);opacity:.6}.activity-empty h3{font-size:1.15rem;font-weight:700;color:var(--text-main);margin-bottom:.5rem}.activity-empty p{font-size:.95rem;max-width:380px;margin:0 auto}.activity-card-btn:focus-visible,.btn-primary:focus-visible{outline:2px solid var(--primary);outline-offset:2px}@media (max-width: 480px){.activity-card,.saved-book-card{flex-direction:column;align-items:flex-start}.activity-card-cover,.saved-book-card-cover{width:100%;height:160px}.activity-card-cover img,.saved-book-card-cover img{width:100%;object-position:top}}.btn-save-library{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;width:100%;max-width:320px;padding:.75rem 1.25rem;font-size:.95rem;font-weight:600;border-radius:var(--radius-md);border:2px solid var(--primary);background-color:var(--card-bg);color:var(--primary);cursor:pointer;transition:var(--transition-smooth);box-shadow:var(--shadow-sm);margin-top:.5rem}.btn-save-library:focus-visible{outline:3px solid var(--primary);outline-offset:3px}.btn-save-library:disabled{opacity:.7;cursor:not-allowed}.save-btn-spinner{animation:spin 1s linear infinite}.book-detail-actions-group{display:flex;flex-direction:column;gap:.5rem;width:100%;max-width:320px;margin-top:.5rem}.btn-save-library,.btn-favorite-library{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;width:100%;padding:.75rem 1.25rem;font-size:.95rem;font-weight:600;border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-smooth);box-shadow:var(--shadow-sm);margin-top:0}.btn-save-library{border:2px solid var(--primary);background-color:var(--card-bg);color:var(--primary)}.btn-save-library:hover:not(:disabled){background-color:var(--primary-light);transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-save-library.saved{background-color:var(--primary-light);border-color:var(--primary);color:var(--primary)}.btn-save-library.saved:hover:not(:disabled){background-color:#fef1f1;border-color:#ef4343;color:#bc1010}.btn-favorite-library{border:2px solid hsl(340,82%,52%);background-color:var(--card-bg);color:#e92063}.btn-favorite-library:hover:not(:disabled){background-color:#fdecf2;transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-favorite-library.favorited{background-color:#e92063;border-color:#e92063;color:#fff}.btn-favorite-library.favorited:hover:not(:disabled){background-color:#c3134e;border-color:#c3134e;color:#fff}.btn-save-library:focus-visible,.btn-favorite-library:focus-visible{outline:3px solid var(--primary);outline-offset:3px}.btn-save-library:disabled,.btn-favorite-library:disabled{opacity:.7;cursor:not-allowed}.favorite-book-card{display:flex;gap:1.25rem;background-color:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-md);padding:1.25rem;box-shadow:var(--shadow-sm);transition:var(--transition-smooth);align-items:flex-start}.favorite-book-card:hover{box-shadow:var(--shadow-md);border-color:#e11d484d;transform:translateY(-2px)}.favorite-book-card-cover{flex-shrink:0;width:76px;height:110px;border-radius:var(--radius-sm);overflow:hidden;background-color:#f1f5f9;box-shadow:var(--shadow-sm);position:relative}.favorite-book-card-cover img{width:100%;height:100%;object-fit:cover}.favorite-book-badge{position:absolute;top:4px;right:4px;background-color:#e92063;color:#fff;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px #0003}.favorite-book-card-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:.4rem}.activity-card-btn-favorite{border-color:#f8b9ce}.activity-card-btn-favorite:hover{background-color:#fdecf2;border-color:#f1749e;color:#d11553}.favorite-book-confirm{display:flex;align-items:center;gap:.5rem;background-color:#fef1f5;border:1px solid hsl(340,82%,85%);border-radius:var(--radius-sm);padding:.375rem .75rem;flex-wrap:wrap;animation:fadeIn .15s ease}.favorite-book-confirm-icon{color:#d11553;flex-shrink:0}.favorite-book-confirm-text{font-size:.8rem;font-weight:600;color:#a21041}