/* =============================================================
   ℹ️ About Page — Premium Redesign
   Integrated with PastQ Hub design system
   ============================================================= */

/* -------------------------------------------------------------
   About Hero Section
   ------------------------------------------------------------- */
.about-hero {
    font-family: var(--font-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    background: var(--bg-purple-gradient);
    text-align: center;
    padding: var(--spacing-20) var(--spacing-4);
    position: relative;
    overflow: hidden;
}

/* Subtle background pattern */
.about-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(102, 126, 234, 0.04) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(118, 75, 162, 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.about-hero-content {
    position: relative;
    z-index: 1;
    max-width: 680px;
}

.about-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(102, 126, 234, 0.08);
    border: 1px solid rgba(102, 126, 234, 0.15);
    padding: 8px 20px;
    border-radius: 60px;
    font-size: 0.82rem;
    font-weight: 600;
    color: #6d28d9;
    margin-bottom: var(--spacing-6);
}

.about-hero-badge i {
    font-size: 0.9rem;
    color: #667eea;
}

.about-hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-3);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

@media (min-width: 640px) {
    .about-hero-title {
        font-size: 3.2rem;
    }
}

.about-hero-title-accent {
    background: linear-gradient(to right, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-hero-subtitle {
    font-size: var(--font-size-base);
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.7;
}

/* -------------------------------------------------------------
   About Info Section
   ------------------------------------------------------------- */
.about-info-section {
    font-family: var(--font-primary);
    background: var(--bg-light-purple);
    padding: var(--spacing-20) var(--spacing-4);
    text-align: center;
}

.about-info-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 640px) {
    .about-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .about-info-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .about-info-grid .about-card:nth-child(4),
    .about-info-grid .about-card:nth-child(5) {
        grid-column: span 1;
    }
    .about-info-grid:has(.about-card:nth-child(4)) {
        max-width: 750px;
    }
}

/* -------------------------------------------------------------
   About Cards
   ------------------------------------------------------------- */
.about-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8) var(--spacing-6);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(102, 126, 234, 0.06);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    gap: var(--spacing-4);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.1);
    border-color: rgba(102, 126, 234, 0.15);
}

.about-card-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    color: white;
    flex-shrink: 0;
}

.about-card-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.about-card-text {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
}

/* Lists inside cards */
.about-card-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    width: 100%;
}

.about-card-list li {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.about-card-list li i {
    color: var(--color-primary);
    font-size: 0.8rem;
    margin-top: 4px;
    flex-shrink: 0;
}

/* Nested sub-list */
.about-card-sublist {
    list-style: none;
    padding: 0;
    margin: var(--spacing-2) 0 0 calc(var(--spacing-4) + 10px);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.about-card-sublist li {
    font-size: var(--font-size-xs);
    color: var(--text-light);
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.about-card-sublist li i {
    font-size: 0.55rem;
    color: var(--color-accent);
    margin-top: 5px;
}

/* -------------------------------------------------------------
   About CTA Section
   ------------------------------------------------------------- */
.about-cta-section {
    font-family: var(--font-primary);
    background: var(--bg-dark-gradient);
    padding: var(--spacing-20) var(--spacing-4);
    color: var(--text-white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.about-cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(255,255,255,0.05) 0%, transparent 50%);
    pointer-events: none;
}

.about-cta-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

.about-cta-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin: 0 0 var(--spacing-3);
}

.about-cta-text {
    font-size: var(--font-size-base);
    opacity: 0.9;
    line-height: 1.7;
    margin: 0 0 var(--spacing-8);
}

.about-cta-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-4);
}

@media (min-width: 640px) {
    .about-cta-actions {
        flex-direction: row;
        justify-content: center;
    }
}

.about-cta-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--bg-white);
    color: #667eea;
    border: none;
    padding: 14px 36px;
    border-radius: var(--radius-lg);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.about-cta-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.2);
}

.about-cta-btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: transparent;
    color: var(--text-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 14px 36px;
    border-radius: var(--radius-lg);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.about-cta-btn-secondary:hover {
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-3px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.15);
}

/* -------------------------------------------------------------
   Responsive
   ------------------------------------------------------------- */
@media (max-width: 480px) {
    .about-hero-title {
        font-size: 1.8rem;
    }

    .about-card {
        padding: var(--spacing-6) var(--spacing-4);
    }

    .about-cta-title {
        font-size: var(--font-size-2xl);
    }
}