* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #f8fafc; --bg2: #ffffff; --bg3: #f1f5f9;
  --accent: #2563eb; --accent2: #3b82f6;
  --text: #0f172a; --text2: #64748b; --border: #e2e8f0;
  --success: #22c55e; --error: #ef4444; --warn: #f59e0b;
  --green: #22c55e; --red: #ef4444;
}
body { font-family: -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }

/* Login */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); }
.login-box { background: var(--bg2); padding: 40px; border-radius: 12px; width: 360px; text-align: center; border: 1px solid var(--border); box-shadow: 0 4px 24px rgba(0,0,0,0.06); }
.login-box h1 { font-size: 24px; margin-bottom: 4px; }
.login-box .subtitle { color: var(--text2); margin-bottom: 24px; }
.login-box input { width: 100%; padding: 12px; margin-bottom: 12px; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 14px; outline: none; transition: border-color .2s; }
.login-box input:focus { border-color: var(--accent); }
.login-box button { width: 100%; padding: 12px; background: var(--accent); border: none; border-radius: 8px; color: white; font-size: 14px; cursor: pointer; }
.login-box button:hover { opacity: 0.9; }
.error { color: var(--error); font-size: 13px; margin-top: 8px; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: var(--bg2); padding: 20px 0; border-right: 1px solid var(--border); flex-shrink: 0; }
.sidebar h2 { font-size: 16px; padding: 0 20px 16px; border-bottom: 1px solid var(--border); margin-bottom: 12px; }
.sidebar a { display: block; padding: 10px 20px; color: var(--text2); font-size: 14px; transition: all .15s; }
.sidebar a:hover, .sidebar a.active { color: var(--accent); background: var(--bg3); }
.sidebar .user { padding: 12px 20px; font-size: 12px; color: var(--text2); border-top: 1px solid var(--border); margin-top: auto; position: absolute; bottom: 20px; }
.main { flex: 1; padding: 32px; overflow-y: auto; background: var(--bg); }
.main h1 { font-size: 22px; margin-bottom: 24px; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 32px; }
.card { background: var(--bg2); padding: 20px; border-radius: 10px; border: 1px solid var(--border); }
.card .label { font-size: 13px; color: var(--text2); margin-bottom: 4px; }
.card .value { font-size: 28px; font-weight: 700; }

/* Table */
table { width: 100%; border-collapse: collapse; background: var(--bg2); border-radius: 10px; overflow: hidden; border: 1px solid var(--border); }
th, td { padding: 12px 16px; text-align: left; font-size: 13px; border-bottom: 1px solid var(--border); }
th { background: var(--bg3); color: var(--text2); font-weight: 600; }
tr:hover { background: var(--bg3); }

/* Buttons */
.btn { display: inline-block; padding: 8px 16px; border-radius: 6px; font-size: 13px; border: none; cursor: pointer; }
.btn-primary { background: var(--accent); color: white; }
.btn-danger { background: var(--error); color: white; }
.btn-success { background: var(--success); color: white; }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text2); }
.btn:hover { opacity: 0.85; }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.4); display: flex; align-items: center; justify-content: center; z-index: 100; }
.modal { background: var(--bg2); padding: 28px; border-radius: 12px; width: 480px; max-height: 80vh; overflow-y: auto; border: 1px solid var(--border); box-shadow: 0 20px 60px rgba(0,0,0,0.15); }
.modal h2 { font-size: 18px; margin-bottom: 20px; }
.modal label { display: block; font-size: 13px; color: var(--text2); margin-bottom: 4px; margin-top: 12px; }
.modal input, .modal select { width: 100%; padding: 10px; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; color: var(--text); font-size: 13px; outline: none; }
.modal input:focus, .modal select:focus { border-color: var(--accent); }
.modal .actions { margin-top: 20px; display: flex; gap: 8px; justify-content: flex-end; }

/* Status */
.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 11px; }
.badge-ok { background: rgba(34,197,94,0.12); color: var(--success); }
.badge-err { background: rgba(239,68,68,0.12); color: var(--error); }
.badge-warn { background: rgba(245,158,11,0.12); color: var(--warn); }

/* Pagination */
.pagination { margin-top: 16px; display: flex; gap: 4px; }
.pagination a { padding: 6px 12px; background: var(--bg2); border-radius: 4px; font-size: 13px; border: 1px solid var(--border); }
.pagination a.active { background: var(--accent); color: white; border-color: var(--accent); }

/* Toast */
.toast { position: fixed; top: 20px; right: 20px; padding: 12px 20px; border-radius: 8px; font-size: 13px; z-index: 200; animation: slideIn .3s; }
.toast-ok { background: var(--success); color: white; }
.toast-err { background: var(--error); color: white; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }