:root {
  --primary: #c75b39;
  --primary-light: #e07a5f;
  --primary-dark: #a0442a;
  --secondary: #3d405b;
  --success: #2a9d8f;
  --warning: #e9c46a;
  --danger: #e76f51;
  --info: #264653;
  --bg: #f8f6f3;
  --card-bg: #ffffff;
  --text: #2d2d2d;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --sidebar-bg: #3d405b;
  --sidebar-text: #ffffff;
  --sidebar-hover: #4a4d6b;
  --gold: #d4a574;
  --sand: #f5f0e8;
  --indigo: #4a5568;
  --radius: 12px;
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
}

* { margin:0; padding:0; box-sizing:border-box; font-family:'Inter',sans-serif; }
body { background:var(--bg); color:var(--text); min-height:100vh; }

/* LAYOUT */
.app-container { display:flex; min-height:100vh; }
.sidebar { width:260px; background:var(--sidebar-bg); color:var(--sidebar-text); flex-shrink:0; display:flex; flex-direction:column; }
.sidebar-header { padding:20px; border-bottom:1px solid rgba(255,255,255,0.1); }
.logo { display:flex; align-items:center; gap:12px; font-size:22px; font-weight:700; }
.logo-icon { font-size:28px; }
.sidebar-nav { flex:1; padding:16px 0; }
.sidebar-nav ul { list-style:none; }
.sidebar-nav li { margin:2px 0; }
.sidebar-nav a { display:flex; align-items:center; gap:12px; padding:12px 20px; color:rgba(255,255,255,0.8); text-decoration:none; font-size:14px; transition:0.2s; cursor:pointer; }
.sidebar-nav a:hover, .sidebar-nav a.active { background:var(--sidebar-hover); color:#fff; }
.sidebar-nav .nav-icon { font-size:18px; }
.sidebar-footer { padding:16px; border-top:1px solid rgba(255,255,255,0.1); }
.user-info { display:flex; align-items:center; gap:12px; }
.avatar { width:36px; height:36px; border-radius:50%; background:var(--primary); color:#fff; display:flex; align-items:center; justify-content:center; font-weight:600; font-size:14px; }
.user-details { display:flex; flex-direction:column; }
.user-name { font-size:13px; font-weight:600; }
.user-role { font-size:11px; opacity:0.7; }
.logout-btn { margin-left:auto; background:none; border:none; color:rgba(255,255,255,0.6); cursor:pointer; font-size:18px; }
.logout-btn:hover { color:var(--danger); }

/* MAIN CONTENT */
.main-content { flex:1; display:flex; flex-direction:column; overflow:hidden; }
.top-bar { height:64px; background:var(--card-bg); border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; padding:0 24px; }
.page-title { font-size:20px; font-weight:600; }
.top-actions { display:flex; gap:12px; }
.content-area { flex:1; padding:24px; overflow-y:auto; }

/* BUTTONS */
.btn { padding:10px 16px; border-radius:8px; border:none; font-size:14px; font-weight:500; cursor:pointer; transition:0.2s; display:inline-flex; align-items:center; gap:8px; }
.btn-primary { background:var(--primary); color:#fff; }
.btn-primary:hover { background:var(--primary-dark); }
.btn-secondary { background:var(--bg); color:var(--text); border:1px solid var(--border); }
.btn-success { background:var(--success); color:#fff; }
.btn-danger { background:var(--danger); color:#fff; }
.btn-sm { padding:6px 12px; font-size:13px; }

/* CARDS */
.card { background:var(--card-bg); border-radius:var(--radius); box-shadow:var(--shadow); margin-bottom:20px; }
.card-header { padding:16px 20px; border-bottom:1px solid var(--border); display:flex; justify-content:space-between; align-items:center; }
.card-title { font-size:16px; font-weight:600; }
.card-body { padding:20px; }

/* STATS GRID */
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:24px; }
.stat-card { background:var(--card-bg); border-radius:var(--radius); padding:20px; box-shadow:var(--shadow); display:flex; align-items:center; gap:16px; }
.stat-icon { width:48px; height:48px; border-radius:12px; display:flex; align-items:center; justify-content:center; font-size:24px; }
.stat-icon.green { background:#dcfce7; }
.stat-icon.orange { background:#ffedd5; }
.stat-icon.blue { background:#dbeafe; }
.stat-icon.red { background:#fee2e2; }
.stat-icon.gold { background:#fef3c7; }
.stat-info h3 { font-size:13px; color:var(--text-muted); font-weight:500; margin-bottom:4px; }
.stat-info .value { font-size:24px; font-weight:700; }

/* TABLES */
.data-table { width:100%; border-collapse:collapse; }
.data-table th { text-align:left; padding:12px 16px; font-size:12px; text-transform:uppercase; letter-spacing:0.5px; color:var(--text-muted); border-bottom:1px solid var(--border); }
.data-table td { padding:12px 16px; border-bottom:1px solid var(--border); font-size:14px; }
.data-table tr:hover { background:var(--bg); }

/* BADGES */
.badge { padding:4px 10px; border-radius:20px; font-size:12px; font-weight:500; }
.badge-success { background:#dcfce7; color:#166534; }
.badge-warning { background:#fef3c7; color:#92400e; }
.badge-danger { background:#fee2e2; color:#991b1b; }
.badge-info { background:#dbeafe; color:#1e40af; }

/* FILTERS */
.filters-row { display:flex; gap:12px; margin-bottom:20px; flex-wrap:wrap; }
.filter-input, .filter-select { padding:8px 12px; border:1px solid var(--border); border-radius:8px; font-size:14px; min-width:200px; }

/* EMPTY STATE */
.empty-state { text-align:center; padding:60px 20px; color:var(--text-muted); }
.empty-state-icon { font-size:48px; margin-bottom:16px; }

/* LOGIN PAGE */
.login-page { display:flex; align-items:center; justify-content:center; min-height:100vh; background:var(--sand); }
.login-card { background:var(--card-bg); border-radius:var(--radius); box-shadow:var(--shadow); padding:40px; width:100%; max-width:420px; }
.login-logo { text-align:center; margin-bottom:32px; }
.login-logo .logo-icon { font-size:48px; }
.login-logo h1 { font-size:24px; margin-top:12px; }
.form-group { margin-bottom:20px; }
.form-group label { display:block; margin-bottom:6px; font-size:14px; font-weight:500; }
.form-group input { width:100%; padding:12px; border:1px solid var(--border); border-radius:8px; font-size:14px; }
.login-btn { width:100%; padding:14px; font-size:16px; }
.login-error { color:var(--danger); font-size:14px; margin-top:12px; text-align:center; display:none; }

/* UTILITIES */
.hidden { display:none !important; }
.text-right { text-align:right; }
.gap-2 { gap:8px; }
.gap-4 { gap:16px; }
.mb-4 { margin-bottom:16px; }

/* MODALS */
.modal-backdrop {
    position:fixed;
    top:0; left:0; right:0; bottom:0;
    background:rgba(0,0,0,0.5);
    display:flex;
    align-items:center;
    justify-content:center;
    z-index:1000;
    padding:20px;
}
.modal-backdrop .modal {
    background:var(--card-bg);
    border-radius:var(--radius);
    box-shadow:0 20px 40px rgba(0,0,0,0.2);
    width:100%;
    max-height:90vh;
    overflow-y:auto;
    padding:24px;
}

/* MOBILE */
@media (max-width:768px) {
  .sidebar { position:fixed; left:-260px; top:0; bottom:0; z-index:100; transition:0.3s; }
  .sidebar.open { left:0; }
  .stats-grid { grid-template-columns:repeat(2,1fr); }
}