/* ============================================================
   About Us Page Styles
   All colors reference semantic tokens from design-system.css
   ============================================================ */

/* Hero — dark navy gradient, blends seamlessly under fixed nav */
.about-hero {
    background: linear-gradient(135deg, var(--hero-bg-start) 0%, var(--hero-bg-end) 100%);
    color: var(--hero-text);
    min-height: 50vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--space-20) var(--space-6);
    position: relative;
    margin-top: -56px;
    padding-top: calc(56px + var(--space-20));
}

.about-hero h1 {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #ffffff 0%, #90e0ef 60%, #48cae4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: #ffffff;
    margin-bottom: var(--space-6);
    line-height: 1.15;
}

.about-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
    z-index: 1;
}

.about-hero > * {
    position: relative;
    z-index: 2;
}

.about-hero .lead {
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 400;
    color: var(--hero-text-muted);
    max-width: 720px;
    margin: 0 auto var(--space-6);
    line-height: 1.7;
}

.about-hero p {
    color: rgba(255, 255, 255, 0.65);
    max-width: 720px;
    margin: 0 auto var(--space-4);
    line-height: 1.7;
    font-size: var(--text-body);
}

/* Wave divider — smooth transition from hero to next section */
.about-hero .wave-divider {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    line-height: 0;
    overflow: hidden;
    z-index: 3;
}

.about-hero .wave-divider svg {
    display: block;
    width: 100%;
    height: 56px;
}

.about-hero .wave-fill {
    fill: var(--color-white);
}


/* Values Section — white bg, polished cards */
.values-section {
    background-color: var(--section-bg-white);
    background-image: radial-gradient(circle, var(--color-gray-300) 1px, transparent 1px);
    background-size: 24px 24px;
    padding: var(--space-20) 0;
    text-align: center;
    position: relative;
}

.values-section::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(180deg, var(--section-bg-white) 0%, transparent 15%, transparent 85%, var(--section-bg-white) 100%);
    z-index: 0;
}

.values-section h2 {
    font-size: var(--text-h1);
    font-weight: 800;
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

.values-section .section__subtitle {
    font-size: var(--text-body);
    color: var(--color-gray-500);
    max-width: 600px;
    margin: 0 auto var(--space-12);
    line-height: 1.7;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.value-card {
    background-color: var(--color-white);
    border: var(--border-default);
    border-radius: var(--radius-md);
    padding: var(--space-8);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.value-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.value-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-brand-50);
    border-radius: var(--radius-md);
    margin: 0 auto var(--space-5);
    color: var(--color-brand-600);
    font-size: 1.5rem;
}

.value-card h3 {
    font-size: var(--text-h3);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

.value-card p {
    color: var(--color-gray-500);
    font-size: var(--text-sm);
    line-height: 1.6;
    margin: 0;
}

@media (max-width: 992px) {
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .values-grid {
        grid-template-columns: 1fr;
    }
}


/* Tech Stack Section — light blue surface */
.tech-section {
    background-color: var(--section-bg-accent);
    padding: var(--space-20) 0;
    text-align: center;
}

.tech-section h2 {
    font-size: var(--text-h1);
    font-weight: 800;
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

.tech-section .section__subtitle {
    font-size: var(--text-body);
    color: var(--color-gray-500);
    max-width: 640px;
    margin: 0 auto var(--space-12);
    line-height: 1.7;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.tech-card {
    background-color: var(--color-white);
    border: var(--border-default);
    border-radius: var(--radius-md);
    padding: var(--space-8);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.tech-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.tech-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    margin: 0 auto var(--space-5);
    font-size: 1.5rem;
}

.tech-card__icon--blue {
    background-color: var(--color-brand-50);
    color: var(--color-brand-600);
}

.tech-card__icon--green {
    background-color: var(--color-success-light);
    color: var(--color-success);
}

.tech-card__icon--orange {
    background-color: var(--color-warning-light);
    color: var(--color-warning);
}

.tech-card h3 {
    font-size: var(--text-h3);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

.tech-card p {
    color: var(--color-gray-500);
    font-size: var(--text-sm);
    line-height: 1.6;
    margin: 0;
}

@media (max-width: 992px) {
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .tech-grid {
        grid-template-columns: 1fr;
    }
}


/* Stats Section — white bg with icon containers */
.about-stats {
    background-color: var(--stats-bg);
    padding: var(--space-16) 0;
}

.about-stats .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
    text-align: center;
}

.about-stats .stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.about-stats .stat-icon-wrap {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--stats-icon-bg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    color: var(--stats-icon-color);
    font-size: 1.25rem;
}

.about-stats .stat-item .number strong {
    display: block;
    font-size: var(--text-h1);
    font-weight: 800;
    color: var(--stats-number-color);
    margin-bottom: var(--space-1);
}

.about-stats .stat-item .number strong span {
    font-size: inherit;
    font-weight: inherit;
}

.about-stats .stat-item .number p {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin: 0;
}

@media (max-width: 768px) {
    .about-stats .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }
}


/* Team Section — light blue bg */
.team-section {
    background-color: var(--section-bg-accent);
    padding: var(--space-20) 0;
    text-align: center;
}

.team-section h2 {
    font-size: var(--text-h1);
    font-weight: 800;
    color: var(--color-gray-900);
    margin-bottom: var(--space-12);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.team-member {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.team-member__avatar {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-brand-600);
    color: #ffffff;
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-4);
    letter-spacing: 0.02em;
}

.team-member h3 {
    font-size: var(--text-h3);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--space-1);
}

.team-member p {
    color: var(--color-gray-500);
    font-size: var(--text-sm);
    margin: 0;
}

@media (max-width: 992px) {
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .team-grid {
        grid-template-columns: 1fr;
    }
}


/* Contact CTA — light bg to separate from footer */
.contact-cta {
    background-color: var(--cta-bg);
    background-image: radial-gradient(circle, var(--color-gray-300) 1px, transparent 1px);
    background-size: 24px 24px;
    padding: var(--space-20) 0;
    text-align: center;
    position: relative;
}

.contact-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(180deg, var(--cta-bg) 0%, transparent 15%, transparent 85%, var(--cta-bg) 100%);
    z-index: 0;
}

.contact-cta h2 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 800;
    color: var(--cta-heading-color);
    margin-bottom: var(--space-4);
}

.contact-cta .lead {
    font-size: var(--text-body);
    color: var(--cta-text-color);
    line-height: 1.7;
    max-width: 560px;
    margin: 0 auto var(--space-8);
}

.contact-cta__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .about-hero {
        min-height: auto;
        padding: var(--space-12) var(--space-4) calc(var(--space-8) + 36px);
        padding-top: calc(56px + var(--space-12));
    }

    .about-hero .wave-divider svg {
        height: 36px;
    }
}

@media (max-width: 576px) {
    .about-hero {
        padding: var(--space-8) var(--space-3) calc(var(--space-6) + 28px);
        padding-top: calc(56px + var(--space-8));
    }

    .about-hero .wave-divider svg {
        height: 28px;
    }
}

/* Landscape phone — reduce hero height and padding */
@media (max-height: 500px) {
    .about-hero {
        min-height: auto;
        padding: var(--space-8) var(--space-4);
        padding-top: calc(56px + var(--space-8));
    }
}

/* ── Dark Mode Overrides ── */
[data-theme="dark"] .value-card {
    background: #1e293b;
    border-color: #334155;
}

[data-theme="dark"] .tech-card {
    background: #1e293b;
    border-color: #334155;
}

[data-theme="dark"] .contact-cta {
    background-color: #0f172a;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
    background-size: 24px 24px;
    border-top: 1px solid rgba(148, 163, 184, 0.12);
}

[data-theme="dark"] .contact-cta::before {
    background: linear-gradient(180deg, #0f172a 0%, transparent 15%, transparent 85%, #0f172a 100%);
}

[data-theme="dark"] .values-section {
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
    background-size: 24px 24px;
}

[data-theme="dark"] .values-section::before {
    background: linear-gradient(180deg, var(--section-bg-white) 0%, transparent 15%, transparent 85%, var(--section-bg-white) 100%);
}