*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--ink: #1a1612;--ink-2: #3d3530;--ink-3: #7a6f68;--ink-4: #b5aba4;--paper: #faf8f5;--paper-2: #f2ede6;--paper-3: #e8e0d5;--accent: #8b4513;--accent-light: #c4793a;--accent-pale: #f5ece3;--green: #2d6a4f;--green-pale: #e8f5f0;--red: #9b2226;--red-pale: #fdecea;--shadow-sm: 0 1px 3px rgba(26,22,18,.08);--shadow-md: 0 4px 16px rgba(26,22,18,.12);--shadow-lg: 0 8px 32px rgba(26,22,18,.16);--radius: 6px;--radius-lg: 12px;--font-display: "Playfair Display", Georgia, serif;--font-body: "DM Sans", system-ui, sans-serif;--sidebar-w: 240px;--header-h: 60px}html,body{height:100%}body{font-family:var(--font-body);background:var(--paper);color:var(--ink);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}#root{height:100%}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}input,textarea,select{font-family:inherit}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--paper-3);border-radius:3px}.layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-w);background:var(--ink);color:var(--paper);display:flex;flex-direction:column;flex-shrink:0;padding:0 0 24px}.sidebar-logo{padding:24px 20px 20px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:12px}.sidebar-logo h1{font-family:var(--font-display);font-size:20px;font-weight:600;letter-spacing:.02em;color:var(--paper)}.sidebar-logo span{color:var(--accent-light)}.sidebar nav{flex:1;padding:0 10px}.nav-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--radius);color:var(--ink-4);font-size:14px;font-weight:400;transition:all .15s;margin-bottom:2px;cursor:pointer}.nav-item:hover{background:#ffffff0f;color:var(--paper)}.nav-item.active{background:var(--accent);color:#fff}.nav-icon{font-size:16px;width:20px;text-align:center}.sidebar-user{margin:0 10px;padding:16px 12px 12px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:var(--ink-4)}.sidebar-user strong{display:block;color:var(--paper);font-size:14px;margin-bottom:4px}.logout-btn{font-size:12px;color:var(--ink-3);padding:4px 0;transition:color .15s}.logout-btn:hover{color:var(--accent-light)}.main-area{flex:1;display:flex;flex-direction:column;overflow:hidden}.topbar{height:var(--header-h);background:var(--paper);border-bottom:1px solid var(--paper-3);display:flex;align-items:center;padding:0 28px;gap:16px;flex-shrink:0}.topbar h2{font-family:var(--font-display);font-size:22px;font-weight:600;color:var(--ink);flex:1}.page-content{flex:1;overflow-y:auto;padding:28px}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius);font-size:14px;font-weight:500;transition:all .15s;white-space:nowrap}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-light)}.btn-secondary{background:var(--paper-2);color:var(--ink-2);border:1px solid var(--paper-3)}.btn-secondary:hover{background:var(--paper-3)}.btn-ghost{color:var(--ink-3)}.btn-ghost:hover{color:var(--ink);background:var(--paper-2)}.btn-danger{background:var(--red-pale);color:var(--red)}.btn-danger:hover{background:var(--red);color:#fff}.btn-sm{padding:5px 10px;font-size:13px}.btn-lg{padding:11px 22px;font-size:15px}.form-group{margin-bottom:18px}.form-group label{display:block;font-size:13px;font-weight:500;color:var(--ink-2);margin-bottom:6px}.form-control{width:100%;padding:9px 12px;border:1px solid var(--paper-3);border-radius:var(--radius);background:#fff;color:var(--ink);font-size:14px;transition:border-color .15s;outline:none}.form-control:focus{border-color:var(--accent)}textarea.form-control{resize:vertical;min-height:80px}select.form-control{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%237a6f68'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}.card{background:#fff;border:1px solid var(--paper-3);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:20px}.book-card{background:#fff;border:1px solid var(--paper-3);border-radius:var(--radius-lg);overflow:hidden;cursor:pointer;transition:all .2s;box-shadow:var(--shadow-sm)}.book-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--accent-light)}.book-card-cover{width:100%;aspect-ratio:2/3;background:var(--paper-2);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}.book-card-cover img{width:100%;height:100%;object-fit:cover}.book-card-cover-placeholder{font-size:36px;opacity:.25;font-family:var(--font-display);font-weight:700;color:var(--ink)}.book-card-info{padding:10px 12px 14px}.book-card-title{font-size:13px;font-weight:500;color:var(--ink);line-height:1.35;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.book-card-author{font-size:12px;color:var(--ink-3)}.book-card-location{font-size:11px;color:var(--ink-4);margin-top:4px;display:flex;align-items:center;gap:3px}.badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:500}.badge-available{background:var(--green-pale);color:var(--green)}.badge-missing{background:var(--red-pale);color:var(--red)}.badge-damaged{background:#fff3cd;color:#856404}.search-wrap{position:relative;flex:1;max-width:480px}.search-wrap input{width:100%;padding:8px 12px 8px 36px;border:1px solid var(--paper-3);border-radius:20px;background:var(--paper-2);font-size:14px;outline:none;transition:all .15s;color:var(--ink)}.search-wrap input:focus{background:#fff;border-color:var(--accent);box-shadow:0 0 0 3px #8b45131a}.search-icon{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--ink-4);font-size:15px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#1a161280;display:flex;align-items:center;justify-content:center;z-index:100;padding:20px;animation:fadeIn .15s ease}.modal{background:var(--paper);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:100%;max-width:640px;max-height:90vh;overflow-y:auto;animation:slideUp .2s ease}.modal-header{padding:20px 24px 16px;border-bottom:1px solid var(--paper-3);display:flex;align-items:center;justify-content:space-between}.modal-header h3{font-family:var(--font-display);font-size:20px;font-weight:600}.modal-body{padding:20px 24px}.modal-footer{padding:16px 24px;border-top:1px solid var(--paper-3);display:flex;justify-content:flex-end;gap:10px}.dropzone{border:2px dashed var(--paper-3);border-radius:var(--radius-lg);padding:40px 20px;text-align:center;cursor:pointer;transition:all .2s;color:var(--ink-3)}.dropzone:hover,.dropzone.active{border-color:var(--accent);background:var(--accent-pale);color:var(--accent)}.dropzone-icon{font-size:32px;margin-bottom:8px}.dropzone p{font-size:14px}.ocr-result{background:var(--paper-2);border:1px solid var(--paper-3);border-radius:var(--radius);padding:14px;font-size:13px}.ocr-field{display:flex;gap:8px;margin-bottom:6px;align-items:baseline}.ocr-label{font-weight:500;color:var(--ink-2);min-width:70px;font-size:12px}.ocr-value{color:var(--ink)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin-bottom:28px}.stat-card{background:#fff;border:1px solid var(--paper-3);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm)}.stat-card .stat-icon{font-size:28px;margin-bottom:10px}.stat-card .stat-value{font-family:var(--font-display);font-size:32px;font-weight:700;color:var(--ink);line-height:1}.stat-card .stat-label{font-size:13px;color:var(--ink-3);margin-top:4px}.filters-bar{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap;align-items:center}.filters-bar select{padding:7px 28px 7px 10px;border:1px solid var(--paper-3);border-radius:var(--radius);font-size:13px;background:#fff;color:var(--ink);outline:none;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='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%237a6f68'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 8px center}.book-detail-header{display:flex;gap:32px;margin-bottom:28px}.book-detail-cover{width:160px;min-width:160px;aspect-ratio:2/3;background:var(--paper-2);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center}.book-detail-cover img{width:100%;height:100%;object-fit:cover}.book-detail-meta h1{font-family:var(--font-display);font-size:26px;font-weight:700;line-height:1.25;margin-bottom:6px}.book-detail-meta .authors{font-size:16px;color:var(--ink-3);margin-bottom:16px}.meta-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px}.meta-item label{font-size:11px;font-weight:500;color:var(--ink-4);text-transform:uppercase;letter-spacing:.05em;display:block}.meta-item span{font-size:14px;color:var(--ink)}.book-description{font-size:14px;color:var(--ink-2);line-height:1.75}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--ink);padding:20px}.login-box{background:var(--paper);border-radius:var(--radius-lg);padding:40px;width:100%;max-width:380px;box-shadow:var(--shadow-lg)}.login-logo{text-align:center;margin-bottom:28px}.login-logo h1{font-family:var(--font-display);font-size:28px;font-weight:700}.login-logo h1 span{color:var(--accent)}.login-logo p{color:var(--ink-3);font-size:14px;margin-top:4px}.tabs{display:flex;border-bottom:1px solid var(--paper-3);margin-bottom:20px}.tab{padding:8px 18px;font-size:14px;color:var(--ink-3);border-bottom:2px solid transparent;margin-bottom:-1px;transition:all .15s;cursor:pointer}.tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:500}.empty-state{text-align:center;padding:60px 20px;color:var(--ink-3)}.empty-state .empty-icon{font-size:48px;margin-bottom:12px;opacity:.4}.empty-state p{font-size:15px}.spinner{width:20px;height:20px;border:2px solid var(--paper-3);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}.loading-full{display:flex;align-items:center;justify-content:center;height:200px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(16px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes spin{to{transform:rotate(360deg)}}.author-row{display:flex;gap:8px;margin-bottom:8px;align-items:center}.author-row .form-control{margin:0}.author-row select.form-control{width:140px;flex-shrink:0}.author-row .remove-btn{color:var(--ink-4);font-size:18px;padding:4px 8px;flex-shrink:0}.author-row .remove-btn:hover{color:var(--red)}.form-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}.mobile-nav{display:none}@media (max-width: 768px){.sidebar{display:none}.book-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:12px}.book-detail-header{flex-direction:column}.stats-grid{grid-template-columns:1fr 1fr}.page-content{padding:16px 16px 80px}.topbar{padding:0 16px}.form-grid-2{grid-template-columns:1fr;gap:0}.modal{max-height:100dvh;border-radius:0}.modal-backdrop{padding:0}.mobile-nav{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--ink);padding:6px 8px calc(6px + env(safe-area-inset-bottom));justify-content:space-around;z-index:50}.mobile-nav a,.mobile-nav button{display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--ink-4);font-size:11px;padding:4px 14px;border-radius:var(--radius)}.mobile-nav a.active{color:var(--accent-light)}.mobile-nav .nav-icon{font-size:20px;width:auto}}