:root{--primary-color: #314d9b;--primary-hover: #263b78;--primary-light: #e6ebf5;--bg-color: #f7f9fc;--card-bg: #ffffff;--text-main: #1a202c;--text-muted: #718096;--border-color: #e2e8f0;--status-available-bg: #e6ffed;--status-available-text: #1a7f37;--status-borrowed-bg: #ffebe9;--status-borrowed-text: #cf222e;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--border-radius: 12px;--border-radius-sm: 8px;--transition: all .3s cubic-bezier(.25, .8, .25, 1);--shadow-sm: 0 1px 3px rgba(0,0,0,.05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .05), 0 2px 4px -1px rgba(0, 0, 0, .03);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .05), 0 4px 6px -2px rgba(0, 0, 0, .02);--shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04)}html{scroll-behavior:smooth}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{font-weight:600;color:#0f172a}.app-container{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;padding:2rem;max-width:1200px;margin:0 auto;width:100%}.navbar{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:100;box-shadow:var(--shadow-sm)}.navbar-content{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}.brand{display:flex;align-items:center;gap:1rem;font-size:1.25rem;font-weight:700;color:var(--primary-color);text-decoration:none}.brand-logo{height:40px;object-fit:contain}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.5rem 1rem;border-radius:var(--border-radius-sm);font-weight:500;cursor:pointer;transition:var(--transition);border:none;font-size:.875rem;text-decoration:none}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 6px #314d9b33}.btn-outline{background-color:transparent;color:var(--primary-color);border:1px solid var(--primary-color)}.btn-outline:hover{background-color:var(--primary-light)}.btn-danger{background-color:#e11d48;color:#fff}.btn-danger:hover{background-color:#be123c}.btn-success{background-color:#059669;color:#fff}.btn-success:hover{background-color:#047857}.form-group{margin-bottom:1rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500;font-size:.875rem}.form-input,.form-select{width:100%;padding:.75rem 1rem;border:1px solid var(--border-color);border-radius:var(--border-radius-sm);font-size:1rem;font-family:inherit;transition:var(--transition);background:var(--card-bg)}.form-input:focus,.form-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #314d9b1a}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:2rem;margin-top:2rem}.book-card{background:var(--card-bg);border-radius:var(--border-radius);overflow:hidden;box-shadow:var(--shadow-md);transition:var(--transition);display:flex;flex-direction:column;cursor:pointer;border:1px solid transparent}.book-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);border-color:var(--primary-light)}.book-cover{width:100%;height:300px;object-fit:cover;background-color:#f1f5f9;border-bottom:1px solid var(--border-color)}.book-info{padding:1.25rem;display:flex;flex-direction:column;flex:1}.book-category{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--primary-color);font-weight:600;margin-bottom:.5rem}.book-title{font-size:1.125rem;font-weight:600;margin-bottom:.25rem;line-height:1.3;color:#1a202c}.book-author{font-size:.875rem;color:var(--text-muted);margin-bottom:1rem}.book-footer{margin-top:auto;display:flex;justify-content:space-between;align-items:center}.status-badge{padding:.25rem .75rem;border-radius:9999px;font-size:.75rem;font-weight:600;letter-spacing:.025em}.status-badge.available{background-color:var(--status-available-bg);color:var(--status-available-text)}.status-badge.borrowed{background-color:var(--status-borrowed-bg);color:var(--status-borrowed-text)}.status-badge.active-on-track{background-color:#e6f0ff;color:#0056b3}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#0f172a99;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem;animation:fadeIn .2s ease-out}.modal-content{background:var(--card-bg);border-radius:var(--border-radius);max-width:800px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg);position:relative;display:flex;flex-direction:column;animation:slideUp .3s cubic-bezier(.16,1,.3,1)}@media (min-width: 768px){.modal-content{flex-direction:row}}.modal-close{position:absolute;top:1rem;right:1rem;background:#fff;border:1px solid var(--border-color);border-radius:50%;width:32px;height:32px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition);z-index:10}.modal-close:hover{background:var(--bg-color);transform:scale(1.1)}.modal-image{flex:0 0 300px;background:#f1f5f9}.modal-image img{width:100%;height:100%;object-fit:cover}.modal-details{padding:2rem;flex:1}.modal-meta-row{display:flex;gap:1.5rem;margin:1.5rem 0;padding-bottom:1.5rem;border-bottom:1px solid var(--border-color)}.meta-item{display:flex;flex-direction:column;gap:.25rem}.meta-label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;font-weight:600;letter-spacing:.05em}.meta-value{font-size:.875rem;font-weight:500}.modal-synopsis{color:var(--text-main);line-height:1.6;font-size:.95rem}.catalog-controls{display:flex;flex-direction:column;gap:1rem;margin-bottom:2rem;background:var(--card-bg);padding:1.5rem;border-radius:var(--border-radius);box-shadow:var(--shadow-sm)}@media (min-width: 768px){.catalog-controls{flex-direction:row;align-items:center}}.search-bar{flex:1;position:relative}.search-bar svg{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:var(--text-muted)}.search-bar input{padding-left:3rem}.filters{display:flex;gap:1rem}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.mt-1{margin-top:.25rem}.mt-4{margin-top:1rem}.mt-8{margin-top:2rem}.mb-4{margin-bottom:1rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.table-container{background:var(--card-bg);border-radius:var(--border-radius);box-shadow:var(--shadow-sm);overflow-x:auto}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{padding:1rem 1.5rem;text-align:left;border-bottom:1px solid var(--border-color)}.data-table th{background-color:#f8fafc;font-weight:600;color:var(--text-muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.05rem}.data-table tr:hover{background-color:var(--bg-color)}.empty-state{padding:6rem 2rem;text-align:center;color:var(--text-muted)}.horizontal-scroll{display:flex;overflow-x:auto;gap:1.5rem;padding-bottom:1rem;scroll-behavior:smooth}.horizontal-scroll::-webkit-scrollbar{height:8px}.horizontal-scroll::-webkit-scrollbar-track{background:#f1f5f9;border-radius:4px}.horizontal-scroll::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}.horizontal-scroll::-webkit-scrollbar-thumb:hover{background:#94a3b8}.compact-card{flex:0 0 200px;background:var(--card-bg);border-radius:var(--border-radius-sm);overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--transition);cursor:pointer;border:1px solid var(--border-color)}.compact-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--primary-light)}.compact-card .book-cover{height:250px}.compact-card .book-info{padding:.75rem}.compact-card .book-title{font-size:1rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.compact-card .book-author{font-size:.75rem;margin-bottom:.5rem}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;border-bottom:1px solid var(--border-color);padding:1.5rem 1.5rem 1rem}.btn-close{background:transparent;border:none;font-size:1.5rem;line-height:1;cursor:pointer;color:var(--text-muted);transition:color .2s}.btn-close:hover{color:var(--status-borrowed-text)}.dashboard-card{transition:transform .2s ease,box-shadow .2s ease}.dashboard-card:hover{transform:translateY(-4px);box-shadow:0 12px 20px -5px #00000014,0 8px 8px -5px #0000000a}.btn-primary:active{transform:scale(.98)}.form-input[type=number]{text-align:center;font-size:1.5rem;font-weight:700;color:var(--primary-color);max-width:120px;margin:0 auto}.dashboard-hero{animation:fadeIn .8s ease-out}