/* ─── StemLab About v2.1.0 ───
   Rebuilt on stemlab-core design tokens + premium enhancements. */

.sla-about {
    max-width: 720px;
    margin: 0 auto;
    padding: var(--space-12) var(--space-6) var(--space-16);
    font-family: var(--font-sans);
    color: var(--color-text-primary);
}

/* ─── Hero ─── */
.sla-hero {
    text-align: center;
    margin-bottom: var(--space-12);
}

.sla-headline {
    font-size: var(--text-h2);
    font-weight: var(--weight-bold);
    color: var(--color-text-primary);
    margin: 0 0 var(--space-3);
    letter-spacing: var(--tracking-snug);
    line-height: var(--leading-snug);
}

.sla-pink {
    color: var(--color-accent);
    text-shadow: 0 0 20px rgba(240, 23, 111, 0.25);
}

.sla-subtitle {
    font-size: var(--text-body);
    color: var(--color-text-secondary);
    margin: 0;
    font-weight: var(--weight-regular);
    line-height: var(--leading-relaxed);
}

/* ─── Cards: premium frosted glass with accent depth ─── */
.sla-card {
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--card-padding-lg);
    margin-bottom: var(--space-6);
    position: relative;
    overflow: hidden;
    transition: border-color 150ms var(--ease-standard),
                box-shadow 150ms var(--ease-standard),
                transform 150ms var(--ease-standard);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3),
                0 1px 4px rgba(0, 0, 0, 0.35),
                inset 0 1px 0 rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(8px) saturate(1.1);
    -webkit-backdrop-filter: blur(8px) saturate(1.1);
}

/* Subtle top highlight */
.sla-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.07), transparent);
    pointer-events: none;
}

/* Left accent bar */
.sla-card::after {
    content: '';
    position: absolute;
    top: 20%;
    left: 0;
    width: 3px;
    height: 60%;
    background: linear-gradient(180deg, transparent, rgba(240, 23, 111, 0.5), transparent);
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
    pointer-events: none;
}

.sla-card:hover {
    border-color: rgba(240, 23, 111, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4),
                0 0 24px rgba(240, 23, 111, 0.06),
                inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* ─── Card Title: accent highlight ─── */
.sla-card-title {
    font-size: var(--text-h4);
    font-weight: var(--weight-bold);
    color: var(--color-accent);
    margin: 0 0 var(--space-4);
    letter-spacing: var(--tracking-snug);
    text-shadow: 0 0 16px rgba(240, 23, 111, 0.20);
}

.sla-card-body p {
    font-size: var(--text-body);
    line-height: var(--leading-relaxed);
    color: var(--color-text-secondary);
    margin: 0 0 var(--space-4);
}

.sla-card-body p:last-child {
    margin-bottom: 0;
}

/* ─── Values List ─── */
.sla-values-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sla-values-list li {
    font-size: var(--text-body);
    line-height: var(--leading-relaxed);
    color: var(--color-text-secondary);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border-subtle);
    transition: color 150ms var(--ease-standard),
                padding-left 150ms var(--ease-standard);
    position: relative;
}

.sla-values-list li:hover {
    color: var(--color-text-primary);
    padding-left: var(--space-2);
}

.sla-values-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.sla-value-title {
    color: var(--color-accent);
    font-weight: var(--weight-semibold);
    text-shadow: 0 0 12px rgba(240, 23, 111, 0.18);
}

/* ─── Responsive ─── */
@media (max-width: 480px) {
    .sla-about {
        padding: var(--space-8) var(--space-4) var(--space-12);
    }

    .sla-headline {
        font-size: var(--text-h3);
    }

    .sla-card {
        padding: var(--card-padding);
    }
}

/* ─── Reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
    .sla-card,
    .sla-values-list li {
        transition-duration: 0.01ms;
    }
}