/* ============================================
   DESIGN SYSTEM — antuan.us
   Shared across all pages
   ============================================ */
:root {
    --bg-primary: #0b0f14;
    --bg-surface: #111827;
    --bg-card: #1a2332;
    --bg-card-hover: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #60a5fa;
    --accent-glow: rgba(96, 165, 250, 0.15);
    --accent-hover: #93c5fd;
    --border: #1e293b;
    --border-hover: #334155;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    --nav-height: 64px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }

/* ============================================
   NAVIGATION
   ============================================ */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(11, 15, 20, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s;
}

nav.scrolled { border-bottom-color: var(--border); }

.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color 0.2s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-primary);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
section {
    padding: 6rem 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.section-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
}

.section-heading {
    font-family: var(--font-serif);
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 400;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.section-subheading {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    line-height: 1.8;
    margin-bottom: 2rem;
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.25s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(96, 165, 250, 0.25);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* ============================================
   HERO
   ============================================ */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

.hero-text .section-label { margin-bottom: 1.5rem; }

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-photo {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--border);
    box-shadow: 0 0 60px rgba(96, 165, 250, 0.08);
    transform: scaleX(-1);
}

/* ============================================
   PAGE HEADER (for inner pages)
   ============================================ */
.page-header {
    padding-top: calc(var(--nav-height) + 4rem);
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

/* ============================================
   ABOUT
   ============================================ */
.about-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border);
}

.stat-item { text-align: center; }

.stat-number {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--accent);
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* Skills/Expertise grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.skill-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.skill-card-icon {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.skill-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.skill-card-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   VENTURES
   ============================================ */
.ventures-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.venture-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
    overflow: hidden;
}

.venture-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.venture-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.venture-card:hover::after { opacity: 1; }

.venture-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.venture-logo {
    width: 52px;
    height: 52px;
    border-radius: 10px;
    object-fit: contain;
    background: #fff;
    padding: 6px;
    flex-shrink: 0;
}

.venture-name {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
}

.venture-role {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 500;
}

.venture-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.venture-link {
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: auto;
}

.venture-link i {
    font-size: 0.7rem;
    transition: transform 0.2s;
}

.venture-link:hover i { transform: translateX(4px); }

/* ============================================
   PRESS / MEDIA
   ============================================ */
.press-grid {
    display: grid;
    gap: 1rem;
    margin-top: 3rem;
}

.press-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.25rem 1.5rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: all 0.25s;
}

.press-item:hover {
    border-color: var(--border-hover);
    transform: translateX(6px);
}

.press-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--accent-glow);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.press-info { flex: 1; }

.press-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.2rem;
}

.press-source {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.press-arrow {
    color: var(--text-muted);
    transition: color 0.2s, transform 0.2s;
}

.press-item:hover .press-arrow {
    color: var(--accent);
    transform: translateX(4px);
}

/* ============================================
   CONTACT / SCHEDULE
   ============================================ */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 4rem;
    margin-top: 3rem;
}

.cal-embed {
    min-height: 580px;
    overflow: hidden;
}

.contact-sidebar { display: flex; flex-direction: column; gap: 2rem; }

.contact-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.contact-card-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.contact-card-value {
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
}

.contact-card-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ============================================
   HOMEPAGE TEASERS
   ============================================ */
.teaser-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.teaser-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.teaser-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.teaser-icon {
    font-size: 1.5rem;
    color: var(--accent);
}

.teaser-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
}

.teaser-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.teaser-link {
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: auto;
}

.teaser-link i {
    font-size: 0.7rem;
    transition: transform 0.2s;
}

.teaser-link:hover i { transform: translateX(4px); }

/* ============================================
   FOOTER
   ============================================ */
footer {
    border-top: 1px solid var(--border);
    padding: 3rem 2rem;
    text-align: center;
}

.footer-inner {
    max-width: 1100px;
    margin: 0 auto;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.footer-social a {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.25s;
}

.footer-social a:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(11, 15, 20, 0.98);
        padding: 1.5rem 2rem;
        gap: 1rem;
        border-bottom: 1px solid var(--border);
    }
    .nav-toggle { display: block; }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-photo {
        width: 200px;
        height: 200px;
        order: -1;
        margin: 0 auto;
    }
    .hero-subtitle { margin: 0 auto 2.5rem; }
    .hero-cta { justify-content: center; }

    .ventures-grid { grid-template-columns: 1fr; }

    .contact-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    section { padding: 4rem 1.25rem; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2.2rem; }
    .about-stats { grid-template-columns: repeat(2, 1fr); }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
}

/* Print */
@media print {
    nav, .cal-embed, .footer-social { display: none; }
    body { background: #fff; color: #000; }
    section { padding: 2rem 0; }
}