/* ═══════════════════════════════════════════════════════════
   Cards & panels — extracted from TNonline
   (NewBooking card-section / Settings section / KpiCard)
   ═══════════════════════════════════════════════════════════ */

/* ── Plain card ── */
.tn-card {
    background: var(--tn-bg-card);
    border: 1px solid var(--tn-border);
    border-radius: var(--tn-radius-lg);
    padding: var(--tn-space-lg);
}

.tn-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--tn-text-primary);
    margin: 0 0 var(--tn-space-md);
    padding-bottom: var(--tn-space-xs);
    border-bottom: 2px solid var(--tn-accent-light);
}

/* Selectable card (e.g. choice tiles) */
.tn-card--selectable {
    cursor: pointer;
    transition: all var(--tn-transition);
}

.tn-card--selectable:hover {
    border-color: var(--tn-accent);
    box-shadow: var(--tn-shadow-md);
}

.tn-card--selectable.is-selected {
    border-color: var(--tn-accent);
    box-shadow: 0 0 0 3px rgba(13, 115, 119, 0.12);
    background: var(--tn-accent-light);
}

/* ── Section panel (header + body), used for grouped settings ── */
.tn-section {
    background: var(--tn-bg-card);
    border: 1px solid var(--tn-border);
    border-radius: var(--tn-radius-lg);
    overflow: hidden;
    margin-bottom: var(--tn-space-md);
}

.tn-section-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--tn-border);
    background: var(--tn-bg-page);
}

.tn-section-header h3 {
    margin: 0;
    font-size: var(--tn-font-size-base);
    font-weight: 600;
    color: var(--tn-text-primary);
}

.tn-section-header .bi {
    font-size: 1.05rem;
    color: var(--tn-text-secondary);
}

.tn-section-body {
    padding: 22px;
}

.tn-section-description {
    margin: 0 0 18px;
    font-size: var(--tn-font-size-sm);
    color: var(--tn-text-secondary);
    line-height: 1.5;
}

/* ── KPI card ── */
.tn-kpi {
    display: flex;
    align-items: flex-start;
    gap: var(--tn-space-md);
    padding: 20px;
    background: var(--tn-bg-card);
    border: 1px solid var(--tn-border);
    border-radius: var(--tn-radius-lg);
}

.tn-kpi-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    min-width: 42px;
    border-radius: var(--tn-radius);
    background: var(--tn-accent-light);
    color: var(--tn-accent);
    font-size: 1.1rem;
}

.tn-kpi-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.tn-kpi-title {
    font-size: var(--tn-font-size-xs);
    color: var(--tn-text-secondary);
    font-weight: 500;
    line-height: 1.3;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.tn-kpi-value-row {
    display: flex;
    align-items: baseline;
    gap: var(--tn-space-xs);
}

.tn-kpi-value {
    font-size: clamp(var(--tn-font-size-xl), 1rem + 0.9vw, var(--tn-font-size-2xl));
    font-weight: 700;
    color: var(--tn-text-primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
}

.tn-kpi-unit {
    font-size: var(--tn-font-size-sm);
    color: var(--tn-text-muted);
    font-weight: 500;
}

.tn-kpi-trend {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: var(--tn-font-size-xs);
    font-weight: 600;
    line-height: 1;
    margin-top: 2px;
}

.tn-kpi-trend--positive {
    color: var(--tn-success);
}

.tn-kpi-trend--negative {
    color: var(--tn-danger);
}

/* ── KPI grid — responsive row of KPI cards ──
   The canonical way to lay out .tn-kpi cards so every product arranges
   them identically: auto-fit columns, wrapping to as many per row as fit.
   Apps can still use their own layout; this is the shared default. */
.tn-kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--tn-space-md);
}

/* Info pair (label over value), used inside cards */
.tn-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.tn-info-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.tn-info-label {
    font-size: var(--tn-font-size-xs);
    font-weight: 600;
    color: var(--tn-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tn-info-value {
    font-size: var(--tn-font-size-sm);
    font-weight: 500;
    color: var(--tn-text-primary);
    word-break: break-word;
}

@media (max-width: 768px) {
    .tn-info-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
}

/* ── Mobile density — tighten the roomy desktop padding on phones so
   content feels dense + premium rather than floating in whitespace. ── */
@media (max-width: 640px) {
    .tn-card {
        padding: var(--tn-space-md); /* 24px → 16px */
    }

    .tn-section-header {
        padding: 12px var(--tn-space-md); /* 14px 20px → 12px 16px */
    }

    .tn-section-body {
        padding: var(--tn-space-md); /* 22px → 16px */
    }

    .tn-kpi {
        padding: var(--tn-space-md); /* 20px → 16px */
    }
}