/* === BACKEND DESIGN SYSTEM === */
:root {
    --primary: #4a0a6e;
    --primary-light: #6b2a8e;
    --primary-dark: #32054d;
    --secondary: #0ea5e9;
    --accent-gold: #ffd700;
    --bg: #f0f4f8;
    --bg-card: #ffffff;
    --text: #1f2937;
    --text-light: #6b7280;
    --border: #e2e8f0;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #f59e0b;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg) !important;
    color: var(--text);
    line-height: 1.6;
}

.card-modern {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    border: 1px solid var(--border);
    transition: var(--transition);
    margin-bottom: 20px;
}
.card-modern:hover {
    box-shadow: var(--shadow);
}

.card-modern-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 8px;
}
.card-modern-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.card-modern-header h3 i { color: var(--primary); }

.btn-modern {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.85rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-family: inherit;
}
.btn-modern-primary { background: var(--primary); color: #fff; }
.btn-modern-primary:hover { background: var(--primary-light); color: #fff; text-decoration: none; }
.btn-modern-success { background: var(--success); color: #fff; }
.btn-modern-success:hover { opacity: 0.9; color: #fff; }
.btn-modern-danger { background: var(--danger); color: #fff; }
.btn-modern-danger:hover { opacity: 0.9; color: #fff; }
.btn-modern-warning { background: var(--warning); color: #fff; }
.btn-modern-warning:hover { opacity: 0.9; }
.btn-modern-outline { background: transparent; border: 1.5px solid var(--border); color: var(--text); }
.btn-modern-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-modern-sm { padding: 6px 12px; font-size: 0.78rem; }

.table-wrap { overflow-x: auto; border-radius: var(--radius-sm); }
.table-modern { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.table-modern thead { background: #f1f5f9; }
.table-modern thead th { padding: 12px 16px; text-align: left; font-weight: 700; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-light); white-space: nowrap; border-bottom: 1px solid var(--border); }
.table-modern tbody td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; color: var(--text); }
.table-modern tbody tr { transition: var(--transition); }
.table-modern tbody tr:hover { background: #f9fafb; }

.badge-modern { display: inline-block; padding: 4px 12px; border-radius: 50px; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.3px; }
.badge-success { background: rgba(22,163,74,0.12); color: var(--success); }
.badge-pending { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-danger { background: rgba(220,38,38,0.12); color: var(--danger); }
.badge-info { background: rgba(74,10,110,0.1); color: var(--primary); }

.form-modern { width: 100%; padding: 10px 16px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-size: 0.9rem; font-family: inherit; transition: var(--transition); background: var(--bg-card); }
.form-modern:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(74,10,110,0.1); }

.flex-between { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.mb-20 { margin-bottom: 20px; }
.mt-20 { margin-top: 20px; }

.stats-grid-modern { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card-modern { background: var(--bg-card); border-radius: var(--radius); padding: 20px; border: 1px solid var(--border); box-shadow: 0 2px 8px rgba(0,0,0,0.04); transition: var(--transition); display: flex; align-items: center; gap: 16px; }
.stat-card-modern:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.stat-icon-modern { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; flex-shrink: 0; }
.stat-icon-modern.blue { background: rgba(37,99,235,0.12); color: #2563eb; }
.stat-icon-modern.green { background: rgba(22,163,74,0.12); color: var(--success); }
.stat-icon-modern.orange { background: rgba(245,158,11,0.15); color: var(--warning); }
.stat-icon-modern.purple { background: rgba(74,10,110,0.1); color: var(--primary); }
.stat-info h4 { font-size: 1.4rem; font-weight: 800; color: var(--primary-dark); margin: 0; line-height: 1.2; }
.stat-info p { font-size: 0.8rem; color: var(--text-light); margin: 2px 0 0; font-weight: 500; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--text-light); }
.empty-state i { font-size: 3rem; display: block; margin-bottom: 16px; opacity: 0.3; }
.empty-state h4 { font-weight: 700; color: var(--text); margin-bottom: 4px; }

.alert-modern { padding: 12px 18px; border-radius: var(--radius-sm); font-size: 0.88rem; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.alert-danger { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-info { background: #e0e7ff; color: #3730a3; border: 1px solid #c7d2fe; }