.scroll-to-top{position:fixed;bottom:24px;right:24px;width:48px;height:48px;border-radius:50%;background:var(--color-primary);color:#fff;border:none;font-size:1.4rem;cursor:pointer;opacity:0;visibility:hidden;transition:var(--transition);z-index:1000;box-shadow:var(--shadow-lg);display:flex;align-items:center;justify-content:center}.scroll-to-top.visible{opacity:1;visibility:visible}.scroll-to-top:hover{background:var(--color-primary-dark);transform:scale(1.1);box-shadow:var(--shadow-xl)}.scroll-to-top:active{transform:scale(.95)}@media (max-width: 480px){.scroll-to-top{width:40px;height:40px;font-size:1.1rem;bottom:16px;right:16px}}.book-card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;transition:var(--transition);animation:fadeIn .4s ease-out;position:relative}.book-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--color-primary)}.book-card.compact{margin:.25rem}.book-card .book-cover-container{position:relative;width:100%;aspect-ratio:2 / 3;background-color:var(--color-surface2);overflow:hidden}.book-card .book-cover{width:100%;height:100%;display:flex;justify-content:center;align-items:center}.book-card .book-cover svg{width:100%;height:100%;display:block}.book-card .favorite-btn{position:absolute;top:8px;right:8px;z-index:10;width:32px;height:32px;border-radius:50%;background:#00000080;backdrop-filter:blur(4px);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.1rem;transition:var(--transition);color:#7c7c95}.book-card .favorite-btn:hover{background:#000000b3;transform:scale(1.1)}.book-card .favorite-btn.favorited{color:#ef4444;background:#ef444433}@keyframes heartbeat{0%{transform:scale(1)}25%{transform:scale(1.3)}50%{transform:scale(1)}75%{transform:scale(1.2)}to{transform:scale(1)}}.book-card .favorite-btn.favorited .heart-icon{animation:heartbeat .5s ease}.book-card .book-cover-overlay{position:absolute;inset:0;background:#0009;display:flex;justify-content:center;align-items:center;gap:var(--space-3);opacity:0;transition:var(--transition)}.book-card:hover .book-cover-overlay{opacity:1}.book-card .quick-action-btn{width:40px;height:40px;border-radius:50%;background:var(--color-surface);border:none;cursor:pointer;font-size:1.2rem;transition:var(--transition);display:flex;align-items:center;justify-content:center}.book-card .quick-action-btn:hover{background:var(--color-primary);color:#fff;transform:scale(1.1)}.book-card .book-info{padding:var(--space-3) var(--space-4)}.book-card .book-title{font-size:.95rem;font-weight:600;color:var(--color-text);margin-bottom:var(--space-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.book-card .book-author{font-size:.85rem;color:var(--color-text-muted);margin-bottom:var(--space-1)}.book-card .book-year{font-size:.75rem;color:var(--color-text-muted);margin-bottom:var(--space-1)}.book-card .book-rating{display:flex;align-items:center;gap:var(--space-1);margin-bottom:var(--space-1)}.book-card .rating-stars{color:var(--color-accent);font-size:.8rem}.book-card .rating-count{font-size:.7rem;color:var(--color-text-muted)}.book-card .book-categories{display:flex;flex-wrap:wrap;gap:var(--space-1)}.book-card .category-tag{background:#8b5cf626;color:var(--color-primary-light);padding:.15rem .6rem;border-radius:20px;font-size:.65rem;font-weight:500}.book-card.skeleton .book-cover{background:var(--color-surface2)}.book-card.skeleton .book-info{padding:var(--space-3)}.book-card.skeleton .skeleton-line{height:12px;border-radius:4px;background:var(--color-surface2);margin-bottom:var(--space-1)}.book-card.skeleton .skeleton-line.short{width:60%}.continue-reading-card{display:flex;gap:16px;align-items:center;padding:16px;margin:1.5rem 0;border-radius:20px;background:linear-gradient(135deg,#8b5cf626,#6d28d914);border:1px solid rgba(139,92,246,.25);position:relative;overflow:hidden;cursor:pointer;transition:transform .15s ease,border-color .15s ease}.continue-reading-card:hover{transform:translateY(-2px);border-color:#8b5cf680}.continue-reading-card:active{transform:translateY(0)}.continue-reading-cover{width:64px;height:96px;flex-shrink:0;border-radius:8px;overflow:hidden;box-shadow:0 6px 18px #00000059}.continue-reading-cover img{width:100%;height:100%;object-fit:cover}.continue-reading-info{flex:1;min-width:0}.continue-reading-label{font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--accent);margin-bottom:4px;display:flex;align-items:center;gap:4px}.continue-reading-title{font-weight:700;font-size:1rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-bottom:2px}.continue-reading-author{font-size:.82rem;color:var(--text-muted);margin-bottom:10px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.continue-reading-progress-track{height:5px;border-radius:999px;background:#ffffff1f;overflow:hidden;margin-bottom:6px}.continue-reading-progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),#a78bfa);transition:width .3s ease}.continue-reading-percentage{font-size:.75rem;color:var(--text-muted)}.continue-reading-btn{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;background:var(--accent);color:#fff;font-size:1.2rem;border:none;box-shadow:0 4px 14px #8b5cf666}@media (max-width: 480px){.continue-reading-title,.continue-reading-author{max-width:160px}}.referral-banner{display:flex;align-items:center;gap:14px;padding:14px 16px;margin:1rem 0;border-radius:16px;background:linear-gradient(135deg,#8b5cf62e,#d9770614);border:1px solid rgba(139,92,246,.3);animation:referral-banner-in .3s ease}@keyframes referral-banner-in{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.referral-banner-icon{font-size:1.8rem;flex-shrink:0}.referral-banner-text{flex:1;min-width:0}.referral-banner-text strong{display:block;font-size:.95rem;color:var(--text);margin-bottom:2px}.referral-banner-text p{font-size:.82rem;color:var(--text-muted);margin:0}.referral-banner-cta{flex-shrink:0;padding:10px 16px;border-radius:999px;border:none;background:linear-gradient(135deg,var(--accent),#6d28d9);color:#fff;font-weight:600;font-size:.85rem;cursor:pointer;box-shadow:0 4px 14px #8b5cf659;white-space:nowrap}@media (max-width: 480px){.referral-banner{flex-wrap:wrap}.referral-banner-cta{width:100%;order:3}}.offline-download-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;font-size:.9rem}.offline-download-btn.downloaded{border-color:var(--success);color:var(--success)}.offline-download-btn:disabled{opacity:.7;cursor:not-allowed}.offline-download-progress{font-size:.8rem;color:var(--text-muted)}.share-book-wrapper{position:relative}.share-book-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;font-size:.9rem}.share-menu{position:absolute;top:calc(100% + 8px);left:0;z-index:100;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg, 12px);box-shadow:var(--shadow-xl, 0 8px 30px rgba(0,0,0,.3));padding:8px;min-width:220px;display:flex;flex-direction:column;gap:2px}.share-menu-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;border:none;background:none;color:var(--text);font-size:.9rem;cursor:pointer;text-align:left;text-decoration:none}.share-menu-item:hover{background:var(--surface2)}.share-menu-backdrop{position:fixed;inset:0;z-index:90}.book-details-page{max-width:1200px;margin:0 auto;padding:1.5rem 1rem;animation:fadeIn .3s ease-out}.book-details-header{margin-bottom:1.5rem}.back-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);font-family:var(--font-primary);font-size:.9rem}.back-btn:hover{background:var(--color-surface2);border-color:var(--color-primary)}.book-details-content{display:grid;grid-template-columns:1fr 2fr;gap:2rem}.book-details-cover-section{display:flex;flex-direction:column;gap:1.2rem;align-items:center}.book-cover-large{width:100%;max-width:280px;aspect-ratio:2 / 3;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-lg);background:var(--color-surface2)}.book-cover-large svg{width:100%;height:100%;display:block}.book-actions{display:flex;flex-direction:column;gap:.6rem;width:100%;max-width:280px}.book-actions .btn{width:100%;justify-content:center}.book-details-info{display:flex;flex-direction:column;gap:1.2rem}.book-title-large{font-size:2rem;font-weight:700;color:var(--color-text);line-height:1.2}.book-author-large{font-size:1.2rem;color:var(--color-text-muted)}.book-year-large{color:var(--color-text-muted);font-size:.95rem}.book-rating-section{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.rating-stars-large{color:var(--color-accent);font-size:1.3rem;letter-spacing:1px}.rating-count-large{color:var(--color-text-muted);font-size:.95rem}.book-categories-section h3,.book-description-section h3{font-size:1.05rem;color:var(--color-text);margin-bottom:.5rem}.book-categories-section .categories-list{display:flex;flex-wrap:wrap;gap:.5rem}.category-tag-large{background:#8b5cf626;color:var(--color-primary-light);padding:.4rem .8rem;border-radius:20px;font-size:.85rem;font-weight:500}.book-description{color:var(--color-text-muted);line-height:1.8;font-size:1rem}.book-metadata{display:flex;flex-wrap:wrap;gap:1.2rem;margin-top:.5rem;padding-top:1rem;border-top:1px solid var(--color-border)}.metadata-item{display:flex;gap:.4rem;font-size:.9rem}.metadata-label{color:var(--color-text-muted);font-weight:500}.metadata-value{color:var(--color-text)}.book-details-secondary{margin-top:2.5rem;grid-column:1 / -1}.recommendations-section h3{font-size:1.2rem;margin-bottom:1rem;color:var(--color-text)}.recommendations-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:1rem}.favorite-btn-large{display:inline-flex;align-items:center;gap:.6rem;padding:.6rem 1.2rem;border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);cursor:pointer;transition:var(--transition);font-family:var(--font-primary);font-size:.95rem}.favorite-btn-large:hover{border-color:var(--color-primary);background:var(--color-surface2)}.favorite-btn-large.favorited{border-color:#ef4444;background:#ef44441a;color:#ef4444}@media (max-width: 768px){.book-details-content{grid-template-columns:1fr;gap:1.5rem}.book-details-cover-section{flex-direction:row;flex-wrap:wrap;justify-content:center}.book-cover-large,.book-actions{max-width:200px}.book-title-large{font-size:1.6rem}.recommendations-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}}@media (max-width: 480px){.book-cover-large,.book-actions{max-width:160px}.book-title-large{font-size:1.3rem}.book-author-large{font-size:1rem}.recommendations-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}}.legal-page{min-height:100vh;background:var(--bg);color:var(--text);padding:2rem 1rem}.legal-container{max-width:800px;margin:0 auto}.legal-back-btn{display:inline-flex;align-items:center;gap:8px;margin-bottom:1.5rem;padding:8px 14px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text-muted);font-size:.9rem;cursor:pointer;transition:color .15s ease,border-color .15s ease}.legal-back-btn:hover{color:var(--accent);border-color:var(--accent)}.legal-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:1.5rem}@media (min-width: 768px){.legal-card{padding:2.5rem}}.legal-title{font-family:var(--font-display);font-size:1.8rem;font-weight:700;color:var(--accent);margin:0 0 .4rem}.legal-updated{color:var(--text-muted);font-size:.85rem;margin:0 0 1.5rem}.legal-content h2{color:var(--accent-light, var(--accent));font-size:1.2rem;font-weight:600;margin:1.5rem 0 .5rem}.legal-content h3{font-size:1.05rem;font-weight:600;color:var(--text);margin:1.2rem 0 .4rem}.legal-content p,.legal-content li{color:var(--text-muted);line-height:1.65}.legal-content a{color:var(--accent)}.legal-content a:hover{text-decoration:underline}.legal-content table{width:100%;border-collapse:collapse;margin:1rem 0}.legal-content th{background:var(--surface2);color:var(--text);font-weight:600;text-align:left;padding:8px 12px}.legal-content td{color:var(--text-muted);padding:8px 12px;border-top:1px solid var(--border)}.legal-content strong{color:var(--text)}.legal-nav{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;gap:1rem;font-size:.9rem}.legal-nav a{color:var(--accent)}.legal-nav a:hover{text-decoration:underline}@tailwind base;@tailwind components;@tailwind utilities;:root{--font-display: "Georgia", serif;--font-body: "Inter", system-ui, sans-serif;--bg: #0B0B14;--surface: #15151F;--surface2: #1C1C2A;--text: #EAEAF2;--text-muted: #7C7C95;--border: #27273B;--accent: #8B5CF6;--accent-light: #A78BFA;--gold: #F2B705;--danger: #F43F5E;--success: #34D399;--color-primary: var(--accent);--color-primary-dark: #6D28D9;--color-primary-light: var(--accent-light);--color-secondary: #10B981;--color-accent: var(--gold);--color-bg: var(--bg);--color-surface: var(--surface);--color-surface2: var(--surface2);--color-text: var(--text);--color-text-muted: var(--text-muted);--color-border: var(--border);--color-danger: var(--danger);--color-success: var(--success);--color-warning: var(--gold);--radius-sm: 6px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .1);--shadow-md: 0 4px 12px rgba(0, 0, 0, .15);--shadow-lg: 0 8px 32px rgba(139, 92, 246, .2);--shadow-xl: 0 12px 48px rgba(0, 0, 0, .3);--transition: all .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: all .4s cubic-bezier(.4, 0, .2, 1);--app-side-padding: 16px}.layout-container{max-width:var(--app-max-width);margin:0 auto;padding-left:var(--app-side-padding);padding-right:var(--app-side-padding);box-sizing:border-box}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-body);background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--accent);text-decoration:none}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:.4}50%{opacity:.8}}@keyframes slideIn{0%{transform:translate(-100%)}to{transform:translate(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.spinner{animation:spin .7s linear infinite}.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.sr-only:focus{position:fixed!important;width:auto!important;height:auto!important;padding:10px 20px!important;margin:0!important;overflow:visible!important;clip:auto!important;white-space:normal!important;background:var(--accent, #8B5CF6);color:#fff;z-index:10000;top:0;left:50%;transform:translate(-50%);border-radius:0 0 12px 12px;text-decoration:none;font-weight:600}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1rem;transition:border-color .2s,box-shadow .2s}.card:hover{border-color:var(--accent);box-shadow:0 4px 20px #8b5cf61a}.badge-danger-bg{background:#f43f5e1f}.badge-accent-bg{background:#8b5cf626}.btn-primary{background:var(--accent);color:#fff;border:none;padding:10px 24px;border-radius:8px;font-weight:600;cursor:pointer;transition:background .2s,transform .1s}.btn-primary:hover{background:var(--accent-light)}.btn-primary:active{transform:scale(.98)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-outline{background:transparent;color:var(--text);border:1px solid var(--border);padding:10px 24px;border-radius:8px;font-weight:600;cursor:pointer;transition:border-color .2s,background .2s}.btn-outline:hover{border-color:var(--accent);background:var(--surface2)}.btn-danger{background:var(--danger);color:#fff;border:none;padding:10px 24px;border-radius:8px;font-weight:600;cursor:pointer;transition:background .2s}.btn-danger:hover{background:#e11d48}.form-input{width:100%;padding:10px 14px;background:var(--surface2);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:.95rem;outline:none;transition:border-color .2s}.form-input:focus{border-color:var(--accent)}.form-input::placeholder{color:var(--text-muted)}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.25rem;font-size:.9rem;font-weight:500;color:var(--text-muted)}[data-theme=light]{--bg: #F5F3EE;--surface: #FFFFFF;--surface2: #EDE9E0;--text: #1A1820;--text-muted: #8A8590;--border: #E0DCD4;--accent: #8B5CF6;--accent-light: #A78BFA;--gold: #D4A800;--danger: #DC2626;--success: #16A34A}[data-theme=sepia]{--bg: #F4ECD8;--surface: #EBE2CC;--surface2: #DFD5BB;--text: #3A3226;--text-muted: #8A7E63;--border: #D9CCA8;--accent: #8B5CF6;--accent-light: #A78BFA;--gold: #B89400;--danger: #DC2626;--success: #16A34A}[data-theme=night]{--bg: #070705;--surface: #100E0A;--surface2: #1A1712;--text: #D4C5A0;--text-muted: #6B5D44;--border: #2A2014;--accent: #8B5CF6;--accent-light: #A78BFA;--gold: #F2B705;--danger: #F43F5E;--success: #34D399}.navbar{display:flex;justify-content:space-between;align-items:center;background:var(--surface);border-bottom:2px solid var(--border);box-shadow:0 1px 3px #00000014;position:sticky;top:0;z-index:100}.navbar{width:100%;left:0;right:0;box-sizing:border-box}.navbar-left{display:flex;align-items:center;gap:12px}.navbar-logo{font-weight:700;font-size:1.2rem;color:var(--accent);background:none;border:none;cursor:pointer}.navbar-right{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.nav-link{color:var(--text);background:none;border:none;cursor:pointer;padding:6px 8px;border-radius:4px;transition:background .2s,color .2s}.nav-link:hover{background:var(--surface2)}.nav-link.admin{color:var(--accent)}.nav-link.author{color:var(--gold)}.nav-link.login{color:var(--accent)}.nav-link.signup{color:var(--text)}.theme-toggle{background:none;border:none;cursor:pointer;font-size:1.2rem;padding:4px 8px;border-radius:4px;transition:background .2s}.theme-toggle:hover{background:var(--surface2)}.user-email{color:var(--text-muted);font-size:.9rem}.btn-logout{background:var(--danger);color:#fff;border:none;padding:6px 16px;border-radius:8px;cursor:pointer;transition:background .2s}.btn-logout:hover{background:#e11d48}.desktop-only{display:inline}.hamburger-btn{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text);padding:4px 8px;border-radius:4px;transition:background .2s}.hamburger-btn:hover{background:var(--surface2)}.mobile-overlay{position:fixed;inset:0;background:#00000080;z-index:999;animation:fadeIn .2s ease}.mobile-menu{position:fixed;top:0;left:0;bottom:0;width:280px;background:var(--surface);border-right:1px solid var(--border);z-index:1000;padding:20px 16px;display:flex;flex-direction:column;gap:4px;animation:slideIn .25s ease;box-shadow:4px 0 24px #0000004d}.mobile-menu-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border)}.mobile-menu-title{font-weight:700;font-size:1.2rem;color:var(--accent)}.mobile-menu-close{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text);padding:4px 8px;border-radius:4px;transition:background .2s}.mobile-menu-close:hover{background:var(--surface2)}.mobile-link{display:flex;align-items:center;gap:12px;background:none;border:none;padding:12px 16px;border-radius:8px;text-align:left;font-size:1rem;color:var(--text);cursor:pointer;width:100%;transition:background .15s,color .15s}.mobile-link:hover{background:var(--surface2)}.mobile-link:active{background:var(--accent)20}.mobile-link.admin{color:var(--accent)}.mobile-link.author{color:var(--gold)}.mobile-link.logout{color:var(--danger)}.mobile-menu-footer{margin-top:auto;border-top:1px solid var(--border);padding-top:16px;font-size:.85rem;color:var(--text-muted)}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,var(--bg),var(--surface))}.auth-card{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px 28px;box-shadow:0 8px 40px #0000004d}.auth-header{text-align:center;margin-bottom:24px}.auth-icon{font-size:2.4rem;display:block;margin-bottom:8px}.auth-title{font-family:var(--font-display);font-size:1.6rem;font-weight:700;color:var(--text);margin-bottom:4px}.auth-subtitle{color:var(--text-muted);font-size:.9rem}.auth-error{background:#f43f5e1f;border:1px solid var(--danger);color:var(--danger);padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:.9rem}.auth-success{background:#34d3991f;border:1px solid var(--success);color:var(--success);padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:.9rem}.auth-form{display:flex;flex-direction:column;gap:16px}.auth-field{display:flex;flex-direction:column;gap:4px}.auth-field label{font-size:.85rem;font-weight:500;color:var(--text-muted)}.auth-input-wrapper{display:flex;align-items:center;background:var(--surface2);border:1px solid var(--border);border-radius:8px;transition:border-color .2s}.auth-input-wrapper:focus-within{border-color:var(--accent)}.auth-input-icon{padding:0 10px;font-size:1.1rem;color:var(--text-muted);flex-shrink:0}.auth-input-wrapper input{width:100%;padding:10px 12px 10px 0;background:transparent;border:none;outline:none;color:var(--text);font-size:.95rem}.auth-input-wrapper input::placeholder{color:var(--text-muted)}.auth-btn-primary{width:100%;padding:12px;background:var(--accent);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s,transform .1s}.auth-btn-primary:hover{background:var(--accent-light)}.auth-btn-primary:active{transform:scale(.98)}.auth-btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.auth-links{text-align:center;margin-top:12px}.auth-link{color:var(--text-muted);font-size:.85rem;transition:color .2s}.auth-link:hover{color:var(--accent)}.auth-link-highlight{color:var(--accent);font-weight:600;transition:color .2s}.auth-link-highlight:hover{color:var(--accent-light)}.auth-footer{margin-top:20px;padding-top:16px;border-top:1px solid var(--border);text-align:center;font-size:.9rem;color:var(--text-muted)}.auth-spinner{width:40px;height:40px;margin:12px auto;border:4px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}.home-page{max-width:1200px;margin:0 auto;padding:1rem}.home-banner{position:relative;background:linear-gradient(135deg,#8b5cf6,#6d28d9);border-radius:0 0 24px 24px;padding:3rem 1.5rem;margin-bottom:2rem;overflow:hidden;animation:slideUp .6s ease-out;min-height:420px;display:flex;align-items:center}.banner-content{max-width:800px;width:100%;min-width:0;margin:0 auto;text-align:center;position:relative;z-index:2}.banner-title{font-size:clamp(1.8rem,5vw,2.5rem);font-weight:800;color:#fff;margin-bottom:.5rem;line-height:1.2}.banner-subtitle{font-size:clamp(1rem,2.5vw,1.25rem);color:#ffffffe6;margin-bottom:1.5rem}.banner-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-top:1.5rem}.btn-lg{padding:.75rem 1.5rem;font-size:1rem}.home-section{padding:2rem 1.5rem;animation:fadeIn .5s ease-out}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.section-header h2{font-size:clamp(1.2rem,3vw,1.5rem);font-weight:700;color:var(--color-text)}.see-all-link{color:var(--color-primary);font-size:.9rem;font-weight:600;transition:all .2s ease}.see-all-link:hover{color:var(--color-primary-dark);text-decoration:underline}.books-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:1rem;margin-bottom:2rem}.categories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:1rem}.category-card{display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:1.5rem 1rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text);text-decoration:none;transition:all .3s ease}.category-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 8px 16px #8b5cf633}.category-icon{font-size:2rem}.category-name{font-size:.85rem;font-weight:600;text-align:center}.book-card-skeleton{display:flex;flex-direction:column;background:var(--surface);border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--border)}.skeleton-cover{width:100%;aspect-ratio:2 / 3;background:linear-gradient(90deg,var(--surface2) 25%,var(--border) 50%,var(--surface2) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}.skeleton-title{height:20px;margin:.75rem 1rem .5rem;background:linear-gradient(90deg,var(--surface2) 25%,var(--border) 50%,var(--surface2) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:4px}.skeleton-author{height:16px;margin:0 1rem .75rem;width:60%;background:linear-gradient(90deg,var(--surface2) 25%,var(--border) 50%,var(--surface2) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:4px}.search-container{max-width:600px;margin:0 auto;width:100%;position:relative}.banner-search .search-container{max-width:600px;margin:0 auto}.search-form{display:flex;gap:.5rem;align-items:center;background:#fff;border-radius:16px;padding:.5rem;box-shadow:0 4px 12px #00000014;transition:all .3s ease}.search-form:focus-within{box-shadow:0 4px 16px #8b5cf633;border:1px solid rgba(139,92,246,.3)}.search-input-wrapper{flex:1;position:relative;display:flex;align-items:center;min-width:200px}.search-icon{position:absolute;left:1rem;color:var(--text-muted);font-size:1.1rem;pointer-events:none;z-index:1}.search-input{width:100%;padding:.75rem 2.5rem;border:1px solid transparent;border-radius:12px;font-size:1rem;color:#1a1a2e;background:transparent;outline:none}.search-input::placeholder{color:#9ca3af}.clear-btn{position:absolute;right:.5rem;background:none;border:none;color:#9ca3af;cursor:pointer;font-size:1rem;padding:.25rem;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s ease}.clear-btn:hover{background:#0000000d;color:#ef4444}.search-filters{display:flex}.filter-select{padding:.5rem .75rem;border:1px solid #E2E8F0;border-radius:12px;background:#fff;font-size:.9rem;color:#1a1a2e;cursor:pointer;min-width:140px;outline:none;transition:all .2s ease}.filter-select:focus{border-color:var(--accent);box-shadow:0 0 0 2px #8b5cf61a}.search-btn{padding:.5rem 1rem;background:linear-gradient(135deg,var(--accent),#6D28D9);color:#fff;border:none;border-radius:12px;font-weight:600;font-size:.9rem;cursor:pointer;transition:all .2s ease;white-space:nowrap}.search-btn:hover:not(:disabled){background:linear-gradient(135deg,#6d28d9,#581c87);transform:translateY(-1px);box-shadow:0 2px 8px #8b5cf64d}.search-btn:disabled{opacity:.7;cursor:not-allowed}.suggestions-dropdown{position:absolute;top:100%;left:0;right:0;background:#fff;border:1px solid #E2E8F0;border-radius:0 0 16px 16px;margin-top:.5rem;max-height:300px;overflow-y:auto;z-index:1000;box-shadow:0 8px 24px #0000001a;animation:slideDown .2s ease-out}.suggestion-item{padding:.75rem 1rem;cursor:pointer;transition:all .2s ease;display:flex;justify-content:space-between;align-items:center}.suggestion-item:hover{background:#f8f9fa}.suggestion-title{font-weight:600;color:#1a1a2e;font-size:.95rem}.suggestion-author{font-size:.85rem;color:#6c757d;margin-top:.25rem}.suggestion-category{font-size:.8rem;color:var(--accent);background:#8b5cf61a;padding:.25rem .5rem;border-radius:8px;white-space:nowrap}@media (max-width: 768px){.desktop-only{display:none}.navbar{padding:14px;gap:2px}.navbar{width:100%;left:0;right:0;box-sizing:border-box}.navbar-logo{font-size:1rem}.theme-toggle,.hamburger-btn{font-size:1.2rem;padding:2px 6px}.btn-logout{padding:4px 10px;font-size:.75rem}.nav-link{font-size:.85rem;padding:4px 6px}.language-selector-dropdown button{font-size:.75rem;padding:2px 4px}.home-banner{padding:2rem 1rem;min-height:360px}.banner-title{font-size:1.8rem}.banner-subtitle{font-size:1rem}.books-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:.75rem}.categories-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}.search-form{flex-direction:column;gap:.5rem;padding:.5rem}.search-input-wrapper{min-width:100%}.search-filters,.filter-select,.search-btn{width:100%}.suggestions-dropdown{position:relative;margin-top:0;border-radius:0 0 12px 12px}}@media (max-width: 480px){.banner-actions{flex-direction:column;align-items:center}.btn-lg{width:100%;max-width:300px}.search-form{padding:.25rem}.search-input{padding:.5rem 1rem .5rem 2.25rem;font-size:.9rem}.filter-select{padding:.5rem;font-size:.85rem}.books-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:.6rem}.categories-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))}.category-card{padding:.8rem}}:root{--app-max-width: 1280px;--app-padding-x: 1rem;--bottom-nav-height: 64px}.app-container{max-width:var(--app-max-width);margin:0 auto;padding:0 var(--app-padding-x);width:100%;box-sizing:border-box}.main-content{padding-bottom:calc(var(--bottom-nav-height) + 1rem);min-height:calc(100vh - var(--bottom-nav-height));padding-top:1rem}html,body{overflow-x:hidden!important;max-width:100vw!important;width:100%!important;box-sizing:border-box}.notification-bell-wrapper{position:relative;display:inline-flex;align-items:center}.notification-bell{position:relative;background:none;border:none;cursor:pointer;font-size:1.3rem;padding:4px 6px;border-radius:var(--radius-sm);transition:background .2s;color:var(--text)}.notification-bell:hover{background:var(--surface2)}.bell-badge{position:absolute;top:-4px;right:-6px;background:var(--danger);color:#fff;font-size:.6rem;font-weight:700;padding:1px 5px;border-radius:999px;min-width:18px;text-align:center;line-height:1.4}.notification-panel-dropdown{position:absolute;top:calc(100% + 8px);right:0;width:360px;max-width:90vw;max-height:400px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);z-index:200;overflow:hidden}@media (max-width: 480px){.notification-panel-dropdown{position:fixed;top:64px;left:50%;right:auto;transform:translate(-50%);width:92vw;max-width:400px;max-height:calc(100vh - 96px)}}.notification-panel{display:flex;flex-direction:column;max-height:400px}.notification-panel-header{display:flex;align-items:center;padding:.8rem 1rem;border-bottom:1px solid var(--border);gap:.5rem;flex-shrink:0}.panel-title{font-weight:600;font-size:.95rem;flex:1;color:var(--text)}.mark-all-read{background:none;border:none;color:var(--accent);font-size:.75rem;cursor:pointer;padding:4px 8px;border-radius:var(--radius-sm);transition:background .2s}.mark-all-read:hover{background:var(--accent)20}.panel-close{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:1rem;padding:4px 6px;border-radius:var(--radius-sm);transition:background .2s}.panel-close:hover{background:var(--surface2);color:var(--text)}.notification-list{list-style:none;margin:0;padding:0;overflow-y:auto;flex:1}.notification-item{display:flex;align-items:flex-start;gap:.5rem;padding:.7rem 1rem;cursor:pointer;transition:background .15s;border-bottom:1px solid var(--border)50}.notification-item:hover{background:var(--surface2)}.notification-item.unread{background:var(--accent)08}.notification-item.unread:hover{background:var(--accent)15}.notification-content{flex:1;min-width:0}.notification-title{font-weight:600;font-size:.85rem;color:var(--text)}.notification-body{font-size:.8rem;color:var(--text-muted);margin-top:1px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.notification-time{font-size:.65rem;color:var(--text-muted)60;display:block;margin-top:2px}.notification-dot{width:8px;height:8px;background:var(--accent);border-radius:50%;flex-shrink:0;margin-top:6px}.panel-loading,.panel-empty{padding:2rem 1rem;text-align:center;color:var(--text-muted);font-size:.9rem}