:root{--bg: #f4f6fb;--bg-elev: #ffffff;--bg-hover: #f1f5f9;--bg-subtle: #f8fafc;--border: #e5e9f0;--border-strong: #d5dbe6;--fg: #0f172a;--fg-soft: #334155;--muted: #64748b;--muted-light: #94a3b8;--accent: #4f46e5;--primary: #4f46e5;--primary-strong: #4338ca;--primary-fg: #ffffff;--accent-fg: #ffffff;--primary-dim: rgba(79, 70, 229, .1);--accent-dim: rgba(79, 70, 229, .1);--teal: #0d9488;--teal-dim: rgba(13, 148, 136, .12);--emerald: #059669;--emerald-dim: rgba(5, 150, 105, .12);--amber: #d97706;--amber-dim: rgba(217, 119, 6, .12);--danger: #dc2626;--danger-dim: rgba(220, 38, 38, .1);--sidebar-bg: linear-gradient(180deg, #0f172a 0%, #131f38 100%);--sidebar-fg: #cbd5e1;--sidebar-muted: #64748b;--sidebar-active-bg: rgba(99, 102, 241, .16);--sidebar-active-fg: #a5b4fc;--sidebar-border: rgba(148, 163, 184, .12);--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow-md: 0 4px 16px rgba(15, 23, 42, .08);--shadow-lg: 0 12px 32px rgba(15, 23, 42, .12);--radius: 12px;--radius-sm: 8px}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg);color:var(--fg);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:inherit;text-decoration:none}.shell{display:flex;min-height:100vh}.sidebar{width:248px;flex-shrink:0;background:var(--sidebar-bg);border-right:1px solid var(--sidebar-border);padding:22px 16px;display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh}.sidebar-brand{display:flex;align-items:center;gap:12px;padding:6px 10px 22px;margin-bottom:8px;border-bottom:1px solid var(--sidebar-border)}.brand-mark{width:34px;height:34px;flex-shrink:0;border-radius:9px;background:linear-gradient(135deg,#6366f1,#0d9488);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;box-shadow:0 4px 12px #6366f166}.sidebar-brand .brand-text{display:flex;flex-direction:column;line-height:1.2}.brand-name{font-weight:700;font-size:15px;letter-spacing:.02em;color:#f1f5f9}.brand-sub{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--sidebar-muted)}.sidebar-section{padding:16px 12px 6px;font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--sidebar-muted)}.sidebar a.nav-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--sidebar-fg);font-size:14px;font-weight:500;transition:background .15s,color .15s}.sidebar a.nav-link:hover{background:#94a3b814;color:#f1f5f9}.sidebar a.nav-link.active{background:var(--sidebar-active-bg);color:var(--sidebar-active-fg);font-weight:600}.sidebar-footer{margin-top:auto;padding-top:16px;border-top:1px solid var(--sidebar-border)}.sidebar-footer .btn-ghost{width:100%;color:var(--sidebar-fg);border-color:var(--sidebar-border);background:transparent}.sidebar-footer .btn-ghost:hover{background:#94a3b81a;color:#f1f5f9;border-color:var(--sidebar-border)}.main{flex:1;padding:36px 44px 64px;max-width:1200px;width:100%}.page-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--border)}.page-header h1{font-size:24px;font-weight:700;letter-spacing:-.02em;color:var(--fg)}.subtle{color:var(--muted);font-size:13px}.card{position:relative;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:border-color .18s,box-shadow .18s,transform .18s}a.card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-md);transform:translateY(-2px)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}.stat-grid a.card{overflow:hidden}.stat-grid a.card:before{content:"";position:absolute;inset:0 auto 0 0;width:4px;background:var(--primary)}.stat-grid a.card:nth-child(2):before{background:var(--teal)}.stat-value{font-size:34px;font-weight:700;letter-spacing:-.02em;color:var(--fg)}.stat-label{color:var(--muted);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;margin-top:2px}.table{width:100%;border-collapse:separate;border-spacing:0;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}.table th,.table td{text-align:left;padding:13px 18px;border-bottom:1px solid var(--border);font-size:14px;vertical-align:middle}.table th{color:var(--muted);font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.08em;background:var(--bg-subtle)}.table tr:last-child td{border-bottom:none}.table tbody tr{transition:background .12s}.table tbody tr:hover td{background:var(--bg-hover)}.thumb{width:46px;height:46px;object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--border);display:block}.badge{display:inline-flex;align-items:center;padding:3px 11px;border-radius:99px;font-size:12px;font-weight:600;background:var(--primary-dim);color:var(--primary-strong)}.badge-teal{background:var(--teal-dim);color:var(--teal)}.badge-amber{background:var(--amber-dim);color:var(--amber)}.badge-emerald{background:var(--emerald-dim);color:var(--emerald)}.form{display:flex;flex-direction:column;gap:20px;max-width:620px;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}.field{display:flex;flex-direction:column;gap:7px}.label{font-size:13px;font-weight:600;color:var(--fg-soft)}.input,.textarea,.select{background:var(--bg-elev);border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--fg);padding:11px 13px;font-size:14px;font-family:inherit;width:100%;transition:border-color .15s,box-shadow .15s}.textarea{min-height:120px;resize:vertical}.input:focus,.textarea:focus,.select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-dim)}input[type=file].input{padding:9px}input[type=datetime-local].input{color-scheme:light}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--primary);color:var(--primary-fg);border:1px solid transparent;border-radius:var(--radius-sm);padding:10px 18px;font-size:14px;font-weight:600;cursor:pointer;transition:background .15s,box-shadow .15s,transform .1s;box-shadow:var(--shadow-sm)}.btn:hover{background:var(--primary-strong);box-shadow:var(--shadow-md)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}.btn-ghost{background:var(--bg-elev);color:var(--fg-soft);border:1px solid var(--border-strong);box-shadow:none}.btn-ghost:hover{background:var(--bg-hover);border-color:var(--muted-light)}.btn-danger{background:var(--danger-dim);color:var(--danger);box-shadow:none}.btn-danger:hover{background:var(--danger);color:#fff}.btn-sm{padding:7px 13px;font-size:13px}.error-text{color:var(--danger);font-size:13px;background:var(--danger-dim);border:1px solid rgba(220,38,38,.2);border-radius:var(--radius-sm);padding:10px 14px;margin-bottom:16px}.empty{border:1px dashed var(--border-strong);border-radius:var(--radius);padding:56px;text-align:center;color:var(--muted);background:var(--bg-subtle)}.row-actions{display:flex;gap:8px;justify-content:flex-end}.preview-media{max-width:220px;border-radius:var(--radius-sm);border:1px solid var(--border);display:block}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(1200px 600px at 50% -10%,rgba(79,70,229,.12),transparent 60%),var(--bg)}.login-card{width:100%;max-width:400px;background:var(--bg-elev);border:1px solid var(--border);border-radius:16px;padding:40px 34px;display:flex;flex-direction:column;gap:18px;box-shadow:var(--shadow-lg)}.login-brand{display:flex;flex-direction:column;align-items:center;gap:12px;margin-bottom:4px}.login-brand .brand-mark{width:48px;height:48px;border-radius:12px;font-size:22px;box-shadow:0 8px 20px #6366f159}.login-title{font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--fg);text-align:center}