:root{--bg: #f5f7fb;--panel: #ffffff;--text: #0f172a;--muted: #64748b;--brand: #3b82f6;--danger: #ef4444;--border: #e5e7eb;--input: #ffffff;--shadow: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.1)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;overflow:hidden}a{color:inherit;text-decoration:none}button{cursor:pointer}input,select,textarea{background:var(--input);color:var(--text);border:1px solid var(--border);padding:10px 12px;border-radius:8px;outline:none}label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}.container{display:grid;grid-template-columns:260px 1fr;height:100vh;position:relative}.sidebar{background:var(--panel);border-right:1px solid var(--border);padding:16px;display:flex;flex-direction:column;gap:10px;position:sticky;top:0;height:100vh;overflow:auto;z-index:20}.sidebar .brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;margin-bottom:8px}.avatar{width:36px;height:36px;border-radius:50%;background:#e2e8f0;display:inline-flex;align-items:center;justify-content:center;font-weight:700;color:#475569}.sidebar .search{margin:6px 0 10px}.sidebar .search input{width:100%}.nav{display:flex;flex-direction:column;gap:6px}.nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--text)}.nav a .nav-icon{width:18px;text-align:center;color:#94a3b8}.nav a.active,.nav a:hover{background:#f1f5f9}.main{display:grid;grid-template-rows:60px minmax(0,1fr);height:100vh}.topbar{border-bottom:1px solid var(--border);background:var(--panel);display:flex;align-items:center;justify-content:space-between;padding:0 16px;box-shadow:var(--shadow);position:sticky;top:0;z-index:30}.topbar .title{font-weight:700;font-size:18px}.content{padding:20px;overflow:auto;height:100%}.card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:16px;box-shadow:var(--shadow)}.row{display:flex;gap:12px;flex-wrap:wrap}.col{display:flex;flex-direction:column;gap:10px}.btn{background:var(--brand);color:#fff;border:none;border-radius:10px;padding:10px 14px;font-weight:600;font-size:14px}.btn.secondary{background:#e2e8f0;color:#0f172a}.btn.danger{background:var(--danger);color:#fff}.btn:disabled{opacity:.7;cursor:default}.table{width:100%;border-collapse:collapse}.table th,.table td{border-bottom:1px solid var(--border);padding:14px 12px;font-size:14px;vertical-align:middle}.table th{color:var(--muted);text-align:left}.table tbody tr{height:72px}.table tbody tr:hover{background:#f8fafc}.row-actions{display:flex;align-items:center;gap:8px;height:72px}.row-actions .btn{padding:8px 12px}.badge{display:inline-block;padding:4px 8px;border-radius:8px;font-size:12px;background:#eef2ff;color:#1d4ed8}.input-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.form-actions{display:flex;gap:10px}.filters{display:grid;grid-template-columns:repeat(6,minmax(150px,1fr));gap:12px}.pagination{display:flex;gap:8px;align-items:center}.image-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}.image-item{border:1px solid var(--border);border-radius:12px;overflow:hidden;background:#fff;box-shadow:var(--shadow);display:flex;flex-direction:column}.image-item img{width:100%;height:220px;object-fit:cover;display:block}.image-item .actions{display:flex;gap:8px;padding:8px;flex-wrap:wrap}.image-item .actions .btn{flex:1 1 48%}.alert{padding:10px 12px;background:#f8fafc;border-radius:10px;border:1px solid var(--border);color:var(--muted)}.login{max-width:420px;margin:80px auto}.modal-backdrop{position:fixed;inset:0;background:#0f172a59;display:flex;align-items:center;justify-content:center;z-index:100}.modal{background:var(--panel);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);width:min(560px,96vw);padding:16px}.modal-title{font-weight:700;font-size:16px;margin-bottom:10px}.modal-body{margin-bottom:12px}.modal-actions{display:flex;gap:8px;justify-content:flex-end}