:root{color-scheme:light;--bg: #f7f8fa;--panel: #ffffff;--border: #e2e5ea;--text: #1c2126;--muted: #6b7280;--accent: #2563eb;--danger: #dc2626;--warning: #d97706;--ok: #16a34a;font-family:Segoe UI,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.layout{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--panel);border-right:1px solid var(--border);padding:20px 12px;flex-shrink:0}.sidebar h1{font-size:16px;margin:0 0 20px 8px}.sidebar a{display:block;padding:8px 10px;border-radius:6px;color:var(--text);text-decoration:none;font-size:14px;margin-bottom:2px}.sidebar a.active,.sidebar a:hover{background:#eef2ff;color:var(--accent)}.content{flex:1;padding:24px 32px;max-width:1200px}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.page-header h2{margin:0}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:24px}.card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px}.card .value{font-size:26px;font-weight:600}.card .label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}table{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--border);border-radius:10px;overflow:hidden}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);font-size:14px}th{background:#fafbfc;font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase}tr:last-child td{border-bottom:none}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600}.badge.available{background:#dcfce7;color:var(--ok)}.badge.assigned{background:#dbeafe;color:var(--accent)}.badge.maintenance{background:#fef3c7;color:var(--warning)}.badge.retired{background:#f1f5f9;color:var(--muted)}.badge.active{background:#dcfce7;color:var(--ok)}.badge.expired,.badge.cancelled{background:#fee2e2;color:var(--danger)}.btn{background:var(--accent);color:#fff;border:none;padding:8px 14px;border-radius:6px;cursor:pointer;font-size:14px}.btn:hover{opacity:.9}.btn.secondary{background:#fff;color:var(--text);border:1px solid var(--border)}.btn.danger{background:var(--danger)}.alert{padding:10px 14px;border-radius:8px;margin-bottom:8px;font-size:14px}.alert.warning{background:#fef3c7;color:#92400e}.alert.danger{background:#fee2e2;color:#991b1b}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:10}.modal{background:#fff;border-radius:10px;padding:20px;width:420px;max-width:90vw}.modal h3{margin-top:0}.form-row{margin-bottom:12px;display:flex;flex-direction:column;gap:4px}.form-row label{font-size:13px;color:var(--muted)}.form-row input,.form-row select,.form-row textarea{padding:8px;border:1px solid var(--border);border-radius:6px;font-size:14px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}.error-text{color:var(--danger);font-size:13px}.muted{color:var(--muted);font-size:13px}