/**
 * Card / surface / stat components — T3.2.1.
 * Load after ui.css (tokens available).
 */

/* ============ CK CARD / SURFACE ============ */
.ck-card {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-lg);
    box-shadow: var(--ring);
    transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}

.ck-card--pad { padding: var(--sp-7); }

.ck-card--hover:hover {
    transform: translateY(-6px);
    box-shadow: var(--ring-lg);
    border-color: var(--border-strong);
}

.ck-surface {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-lg);
    box-shadow: var(--ring-sm);
}

.ck-surface-2 {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
}

.ck-stat {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-md);
    padding: var(--sp-5);
    text-align: center;
    box-shadow: var(--ring);
}

.ck-stat__n {
    font-size: clamp(1.4rem, 4vw, 1.9rem);
    font-weight: 900;
    color: var(--heading);
    letter-spacing: var(--tracking-tight);
}

.ck-stat__l {
    font-size: var(--fs-xs);
    color: var(--muted);
    font-weight: 600;
    margin-top: 4px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-lg);
    box-shadow: var(--ring);
    color: var(--body);
}

.card-header,
.card-footer {
    background: transparent;
    border-color: var(--border);
    color: var(--heading);
}

.card-elevated,
#checkoutModal .card-elevated {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    box-shadow: var(--ring-sm);
}

.ck-card .ck-h3 { margin-top: var(--sp-4); }
.ck-card .ck-body { margin-top: var(--sp-2); }

/* ============ ADMIN LIST PAGE HEADER / STATS ============ */
.ck-app .page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.ck-app .page-header h1 {
    margin: 0;
    font-weight: 800;
    color: var(--heading);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 2rem;
}

.ck-app .page-header .text-muted {
    width: 100%;
    margin-top: -0.5rem;
}

.ck-app .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.ck-app .stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--ring);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    position: relative;
    overflow: hidden;
}

.ck-app .stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--stat-color, var(--primary)), transparent);
}

.ck-app a.stat-card:hover,
.ck-app .stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--ring-lg);
    border-color: var(--border-strong);
}

.ck-app .stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.ck-app .stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: color-mix(in srgb, var(--heading) 10%, transparent);
    color: var(--stat-color, var(--heading));
}

.ck-app .stat-card-label {
    font-size: 0.875rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.ck-app .stat-card-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--heading);
    margin: 0.5rem 0;
}

.ck-app .stat-card-amount {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--stat-color, var(--success-strong));
}

.ck-app .stat-card-total { --stat-color: var(--info); }
.ck-app .stat-card-paid { --stat-color: var(--success-strong); }
.ck-app .stat-card-pending { --stat-color: var(--warning); }
.ck-app .stat-card-failed { --stat-color: var(--danger); }
.ck-app .stat-card-expired { --stat-color: var(--muted); }
.ck-app .stat-card-user { --stat-color: var(--muted); }
.ck-app .stat-card-admin { --stat-color: var(--danger); }
.ck-app .stat-card-must-change { --stat-color: var(--warning); }
.ck-app .admin-dashboard .stat-card-voucher { --stat-color: var(--violet); }

.ck-app .aff-filter-title,
.ck-app .ud-hero-email,
.ck-app .ud-info-value,
.ck-app .ad-hero-email {
    color: var(--heading);
}

.ck-app .stats-grid a.stat-card {
    color: inherit;
    display: block;
}

.ck-app .aff-wd-stat-card:focus-visible {
    outline: 2px solid color-mix(in srgb, var(--primary) 60%, transparent);
    outline-offset: 3px;
}

.ck-app .stats-grid a.stat-card:focus-visible {
    outline: 2px solid color-mix(in srgb, var(--primary) 60%, transparent);
    outline-offset: 3px;
}

.stat-card-amount.text-muted {
    color: var(--muted) !important;
}

.ck-app .empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--muted);
}

.ck-app .empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h4,
.empty-state h5,
.aff-table-card .empty-state .aff-empty-title {
    color: var(--heading) !important;
}

@media (max-width: 991px) {
    .ck-app .page-header {
        margin-bottom: 1rem;
    }
}