:root {
    --primary: #0A192F;
    --secondary: #D4AF37;
    --danger: #dc3545;
    --success: #28a745;
    --warning: #ffc107;
    --bg-light: #f4f6f9;
    --white: #ffffff;
    --border: #dee2e6;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', sans-serif; background-color: var(--bg-light); color: #333; }

.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
    width: 260px;
    background-color: var(--primary);
    color: var(--white);
    display: flex;
    flex-direction: column;
}

.admin-brand {
    padding: 20px;
    text-align: center;
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: rgba(0,0,0,0.2);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.admin-nav {
    list-style: none;
    padding: 20px 0;
    flex: 1;
}

.admin-nav li a {
    display: block;
    padding: 15px 25px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: 0.3s;
}

.admin-nav li a:hover, .admin-nav li a.active {
    background-color: rgba(255,255,255,0.1);
    color: var(--secondary);
    border-left: 4px solid var(--secondary);
}

/* Main Content */
.admin-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.admin-header {
    background: var(--white);
    padding: 20px 30px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-content {
    padding: 30px;
    flex: 1;
    overflow-y: auto;
}

/* Cards & Dashboard */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--white);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
    border-left: 5px solid var(--secondary);
}

.stat-card h3 { font-size: 0.9rem; color: #666; margin-bottom: 10px; }
.stat-card .num { font-size: 2rem; font-weight: 700; color: var(--primary); }

/* Admin Panels */
.admin-panel {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}

.admin-panel-header {
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Forms */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 500; }
.form-control, .form-select {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: inherit;
}
.form-control:focus { outline: none; border-color: var(--primary); }

/* Tables */
.table-responsive { overflow-x: auto; }
.admin-table {
    width: 100%;
    border-collapse: collapse;
}
.admin-table th, .admin-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.admin-table th { background-color: #f8f9fa; font-weight: 600; }
.admin-table tbody tr:hover { background-color: #f8f9fa; }

/* Badges & Buttons */
.badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}
.badge-success { background: #d4edda; color: #155724; }
.badge-warning { background: #fff3cd; color: #856404; }

.btn { padding: 10px 20px; border: none; border-radius: 4px; cursor: pointer; text-decoration: none; font-size: 0.9rem; transition: 0.3s; }
.btn-primary { background: var(--primary); color: white; }
.btn-secondary { background: var(--secondary); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-sm { padding: 5px 10px; font-size: 0.8rem; }
.btn:hover { opacity: 0.9; transform: translateY(-1px); }

/* Alerts */
.alert {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
}
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-danger { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: var(--primary);
}
.login-card {
    background: white;
    padding: 40px;
    border-radius: 8px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.login-logo { text-align: center; margin-bottom: 30px; font-family: 'Playfair Display', serif; color: var(--primary); }

@media (max-width: 768px) {
    .admin-wrapper { flex-direction: column; }
    .admin-sidebar { width: 100%; }
    .admin-nav { display: flex; overflow-x: auto; padding: 0; }
    .admin-nav li { flex: 0 0 auto; }
}