:root{--ink: #2b2118;--parchment: #f3ecd9;--parchment-deep: #e8dfc4;--card: #fffcf5;--forest: #1f3b2d;--forest-light: #2c5541;--gold: #b4894f;--gold-light: #d9b579;--stamp-red: #a33d2e;--line: #d9cca4;--shadow: rgba(43, 33, 24, .12);--font-display: "Fraunces", serif;--font-body: "Inter", sans-serif;--font-mono: "Space Mono", monospace}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background-color:var(--parchment);background-image:radial-gradient(circle at 1px 1px,rgba(43,33,24,.05) 1px,transparent 0);background-size:22px 22px;color:var(--ink);font-family:var(--font-body);min-height:100vh}#root{min-height:100vh;display:flex;flex-direction:column}button{font-family:inherit;cursor:pointer}a{color:inherit}::selection{background:var(--gold-light)}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-thumb{background:var(--gold);border-radius:6px}.app-shell{display:flex;flex:1;min-height:100vh}.sidebar{width:220px;background:var(--forest);color:var(--parchment);display:flex;flex-direction:column;padding:28px 0;flex-shrink:0}.brand{padding:0 24px 24px;border-bottom:1px solid rgba(243,236,217,.15);margin-bottom:20px}.brand-mark{font-family:var(--font-display);font-size:26px;font-weight:600;letter-spacing:.5px;color:var(--gold-light);line-height:1.1}.brand-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:2px;text-transform:uppercase;color:#f3ecd98c;margin-top:6px}.nav-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column}.nav-item{padding:12px 24px;font-size:14.5px;font-weight:500;color:#f3ecd9bf;text-decoration:none;border-left:3px solid transparent;transition:all .15s ease;display:flex;align-items:center;gap:10px}.nav-item:hover{background:#f3ecd90f;color:var(--parchment)}.nav-item.active{border-left-color:var(--gold);background:#b4894f26;color:var(--gold-light)}.nav-index{font-family:var(--font-mono);font-size:11px;opacity:.7}.main-panel{flex:1;padding:40px 48px;overflow-y:auto}.page-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:32px;border-bottom:2px solid var(--ink);padding-bottom:16px}.page-title{font-family:var(--font-display);font-size:34px;font-weight:600;margin:0}.page-eyebrow{font-family:var(--font-mono);font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--gold);margin:0 0 6px}.btn{font-size:13.5px;font-weight:600;padding:10px 18px;border-radius:3px;border:1.5px solid var(--ink);background:transparent;color:var(--ink);transition:all .15s ease}.btn:hover{background:var(--ink);color:var(--parchment)}.btn-primary{background:var(--forest);border-color:var(--forest);color:var(--parchment)}.btn-primary:hover{background:var(--forest-light);border-color:var(--forest-light)}.btn-danger{border-color:var(--stamp-red);color:var(--stamp-red)}.btn-danger:hover{background:var(--stamp-red);color:var(--parchment)}.btn-sm{padding:6px 12px;font-size:12px}.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:36px}.stat-card{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:20px;position:relative;box-shadow:2px 2px 0 var(--shadow)}.stat-value{font-family:var(--font-display);font-size:32px;font-weight:600;color:var(--forest)}.stat-label{font-family:var(--font-mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;color:#7a6c50;margin-top:4px}.catalog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}.catalog-card{background:var(--card);border:1px solid var(--line);border-radius:2px;padding:18px 18px 16px;box-shadow:3px 3px 0 var(--shadow);position:relative;border-top:4px solid var(--forest)}.catalog-card-index{font-family:var(--font-mono);font-size:10px;color:var(--gold);letter-spacing:1px}.catalog-card-title{font-family:var(--font-display);font-size:19px;font-weight:600;margin:4px 0 2px;line-height:1.25}.catalog-card-author{font-size:13px;color:#6b5d43;font-style:italic;margin-bottom:10px}.catalog-meta{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.tag{font-family:var(--font-mono);font-size:10.5px;padding:3px 8px;border-radius:20px;background:var(--parchment-deep);color:var(--ink);border:1px solid var(--line)}.tag-available{background:#1f3b2d1a;color:var(--forest);border-color:#1f3b2d40}.tag-out{background:#a33d2e1a;color:var(--stamp-red);border-color:#a33d2e40}.catalog-card-actions{display:flex;gap:8px;margin-top:10px}.ledger{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line)}.ledger th{text-align:left;font-family:var(--font-mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;color:#7a6c50;padding:12px 16px;border-bottom:2px solid var(--ink);background:var(--parchment-deep)}.ledger td{padding:12px 16px;border-bottom:1px solid var(--line);font-size:14px}.ledger tr:last-child td{border-bottom:none}.ledger tr:hover td{background:#b4894f0f}.stamp{font-family:var(--font-mono);font-size:11px;font-weight:700;padding:3px 10px;border:1.5px solid currentColor;border-radius:3px;display:inline-block;transform:rotate(-2deg);letter-spacing:1px}.stamp-issued{color:var(--stamp-red)}.stamp-returned{color:var(--forest)}.form-panel{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:24px;max-width:480px;box-shadow:3px 3px 0 var(--shadow);margin-bottom:32px}.form-row{margin-bottom:14px;display:flex;flex-direction:column;gap:6px}.form-row label{font-family:var(--font-mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;color:#7a6c50}.form-row input,.form-row select{padding:10px 12px;border:1.5px solid var(--line);border-radius:3px;font-size:14px;font-family:var(--font-body);background:#fff;color:var(--ink)}.form-row input:focus,.form-row select:focus{outline:2px solid var(--gold);outline-offset:1px;border-color:var(--gold)}.form-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-actions{display:flex;gap:10px;margin-top:6px}.alert{padding:10px 14px;border-radius:3px;font-size:13px;margin-bottom:16px;border:1px solid}.alert-error{background:#a33d2e14;border-color:#a33d2e4d;color:var(--stamp-red)}.alert-success{background:#1f3b2d14;border-color:#1f3b2d4d;color:var(--forest)}.empty-state{font-family:var(--font-mono);font-size:13px;color:#8a7c5e;padding:40px 0;text-align:center;border:1px dashed var(--line);border-radius:4px}.section-heading{font-family:var(--font-display);font-size:20px;font-weight:600;margin:0 0 16px}.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}@media (max-width: 800px){.app-shell{flex-direction:column}.sidebar{width:100%;flex-direction:row;align-items:center;padding:12px 16px}.brand{border:none;padding:0;margin:0}.nav-list{flex-direction:row;margin-left:auto}.main-panel{padding:24px}.form-grid-2{grid-template-columns:1fr}}