@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

:root {
    --bg-primary: #0b1120;
    --bg-secondary: #111a2e;
    --bg-card: #162038;
    --bg-card-hover: #1c2a48;
    --text-primary: #f0f2f5;
    --text-secondary: #8892a4;
    --text-muted: #5a6478;
    --accent: #c8a44e;
    --accent-light: #dbb85e;
    --accent-dim: rgba(200, 164, 78, 0.15);
    --border: rgba(255,255,255,0.06);
    --border-hover: rgba(255,255,255,0.12);
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.5);
    --radius: 6px;
    --max-width: 1200px;
    --nav-height: 72px;
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }

body {
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 400;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--accent-light); }

h1, h2, h3, h4 {
    font-family: 'Cinzel', serif;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.3;
}

.section-label {
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2rem;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
    display: block;
}

.section-heading { font-size: 2.2rem; letter-spacing: 0.05rem; margin-bottom: 1.5rem; }
.section-text { font-size: 1.05rem; max-width: 680px; color: var(--text-secondary); line-height: 1.8; }
.section-text.centered { margin: 0 auto; text-align: center; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 2rem; }

/* ============ NAVIGATION ============ */
.site-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    height: var(--nav-height);
    display: flex; align-items: center; padding: 0 3rem;
    transition: background 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out);
}

.site-nav.scrolled {
    background: rgba(11, 17, 32, 0.95);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 var(--border);
}

.nav-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: var(--max-width); margin: 0 auto; }
.nav-logo { display: flex; align-items: center; gap: 0.75rem; }
.nav-logo img { height: 40px; width: auto; }
.nav-logo span { font-family: 'Cinzel', serif; font-size: 1rem; font-weight: 600; color: var(--text-primary); letter-spacing: 0.08rem; }

.nav-links { display: flex; align-items: center; gap: 2.5rem; list-style: none; }
.nav-links a { font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); letter-spacing: 0.04rem; transition: color 0.3s; text-decoration: none; }
.nav-links a:hover { color: var(--text-primary); }

.nav-cta {
    padding: 0.55rem 1.5rem; border: 1px solid rgba(200,164,78,0.4); border-radius: 4px;
    color: var(--accent) !important; font-size: 0.8rem !important; letter-spacing: 0.06rem;
    transition: all 0.3s; cursor: pointer; background: transparent; font-family: 'Inter', sans-serif; font-weight: 500;
}
.nav-cta:hover { background: var(--accent-dim); border-color: var(--accent); color: var(--accent-light) !important; }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { width: 24px; height: 2px; background: var(--text-primary); transition: all 0.3s; }

/* ============ HERO ============ */
.hero {
    min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center; padding: 6rem 2rem 4rem; position: relative; overflow: hidden;
}

.hero::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse at 50% 40%, rgba(200,164,78,0.06) 0%, transparent 60%);
    animation: heroGlow 8s ease-in-out infinite alternate;
    pointer-events: none;
}

@keyframes heroGlow {
    0% { opacity: 0.6; transform: scale(1); }
    100% { opacity: 1; transform: scale(1.1); }
}

.hero-logo {
    width: 220px; height: auto; margin-bottom: 2.5rem;
    opacity: 0; animation: heroFloat 1.2s var(--ease-out) 0.3s forwards;
    will-change: transform;
}

.hero-logo.floating { animation: logoFloat 6s ease-in-out infinite; }

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero h1 { font-size: 2.8rem; letter-spacing: 0.15rem; margin-bottom: 1rem; opacity: 0; animation: heroFloat 1.2s var(--ease-out) 0.6s forwards; }
.hero-tagline { font-size: 1.1rem; color: var(--text-secondary); letter-spacing: 0.1rem; margin-bottom: 0.5rem; opacity: 0; animation: heroFloat 1.2s var(--ease-out) 0.8s forwards; }
.hero-divider { width: 60px; height: 1px; background: var(--accent); margin: 2rem auto; opacity: 0; animation: heroFloat 1.2s var(--ease-out) 1s forwards; }
.hero-actions { display: flex; gap: 1.5rem; margin-top: 1rem; opacity: 0; animation: heroFloat 1.2s var(--ease-out) 1.2s forwards; }

@keyframes heroFloat {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-parallax { transition: transform 0.1s linear, opacity 0.1s linear; will-change: transform, opacity; }

/* ============ BUTTONS ============ */
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.85rem 2rem; font-family: 'Inter', sans-serif; font-size: 0.85rem; font-weight: 500;
    letter-spacing: 0.06rem; border-radius: 4px; cursor: pointer;
    transition: all 0.4s var(--ease-out); text-decoration: none; border: none;
    transform: translateY(0);
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--bg-primary); }
.btn-primary:hover { background: var(--accent-light); color: var(--bg-primary); box-shadow: 0 4px 20px rgba(200,164,78,0.3); transform: translateY(-2px); }
.btn-outline { background: transparent; border: 1px solid var(--border-hover); color: var(--text-primary); }
.btn-outline:hover { border-color: rgba(255,255,255,0.3); background: rgba(255,255,255,0.04); color: var(--text-primary); transform: translateY(-2px); }

/* ============ SECTIONS ============ */
section { padding: 7rem 0; position: relative; }
section + section { border-top: 1px solid var(--border); }

/* ============ SCROLL ANIMATIONS ============ */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 1s var(--ease-out), transform 1s var(--ease-out); }
.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal-left { opacity: 0; transform: translateX(-50px); transition: opacity 1s var(--ease-out), transform 1s var(--ease-out); }
.reveal-left.visible { opacity: 1; transform: translateX(0); }

.reveal-right { opacity: 0; transform: translateX(50px); transition: opacity 1s var(--ease-out), transform 1s var(--ease-out); }
.reveal-right.visible { opacity: 1; transform: translateX(0); }

.reveal-scale { opacity: 0; transform: scale(0.9); transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-spring); }
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* Stagger delays */
[data-delay="1"] { transition-delay: 0.1s !important; }
[data-delay="2"] { transition-delay: 0.2s !important; }
[data-delay="3"] { transition-delay: 0.3s !important; }
[data-delay="4"] { transition-delay: 0.4s !important; }
[data-delay="5"] { transition-delay: 0.5s !important; }
[data-delay="6"] { transition-delay: 0.6s !important; }

/* ============ ABOUT ============ */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; margin-top: 3rem; }

.about-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }

.metric-card {
    padding: 1.5rem; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    transition: all 0.5s var(--ease-out);
}
.metric-card:hover { border-color: var(--border-hover); transform: translateY(-3px); box-shadow: var(--shadow); }

.metric-value { font-family: 'Cinzel', serif; font-size: 1.8rem; color: var(--accent); margin-bottom: 0.25rem; }
.metric-label { font-size: 0.8rem; color: var(--text-muted); letter-spacing: 0.04rem; }

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

.portfolio-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 2.5rem; cursor: pointer; position: relative; overflow: hidden;
    transition: all 0.5s var(--ease-out);
}

.portfolio-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 3px; height: 0;
    transition: height 0.5s var(--ease-out);
}

.card-engineering::before { background: #4a90d9; }
.card-technology::before { background: #22c55e; }
.card-investments::before { background: var(--accent); }
.card-ai::before { background: #8b5cf6; }

.portfolio-card:hover { background: var(--bg-card-hover); border-color: var(--border-hover); transform: translateY(-4px); box-shadow: var(--shadow); }
.portfolio-card:hover::before { height: 100%; }

.card-icon {
    width: 40px; height: 40px; border-radius: 8px; display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; margin-bottom: 1.25rem;
}

.card-engineering .card-icon { background: rgba(74,144,217,0.12); color: #4a90d9; }
.card-technology .card-icon { background: rgba(34,197,94,0.12); color: #22c55e; }
.card-investments .card-icon { background: rgba(200,164,78,0.12); color: var(--accent); }
.card-ai .card-icon { background: rgba(139,92,246,0.12); color: #8b5cf6; }

.portfolio-card h3 { font-size: 1.15rem; margin-bottom: 1rem; letter-spacing: 0.04rem; }
.portfolio-card p { font-size: 0.9rem; margin-bottom: 0.6rem; color: var(--text-secondary); line-height: 1.5; }

.card-link {
    display: inline-flex; align-items: center; gap: 0.4rem; margin-top: 1rem;
    font-size: 0.8rem; font-weight: 500; color: var(--accent); letter-spacing: 0.04rem;
    transition: gap 0.4s var(--ease-out);
}
.portfolio-card:hover .card-link { gap: 0.8rem; }

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

.leader-card {
    text-align: center; padding: 2.5rem 1.5rem; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); transition: all 0.5s var(--ease-out);
}
.leader-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: var(--shadow); }

.leader-avatar {
    width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 1.25rem;
    background: linear-gradient(135deg, var(--bg-card-hover), var(--accent-dim));
    display: flex; align-items: center; justify-content: center;
    font-family: 'Cinzel', serif; font-size: 1.3rem; color: var(--accent); font-weight: 600;
    border: 2px solid var(--border-hover);
}

.leader-photo {
    width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 1.25rem;
    object-fit: cover; border: 2px solid var(--border-hover);
    display: block;
}

.leader-name { font-family: 'Cinzel', serif; font-size: 1rem; color: var(--text-primary); margin-bottom: 0.3rem; }
.leader-title { font-size: 0.8rem; color: var(--accent); letter-spacing: 0.04rem; margin-bottom: 0.75rem; }
.leader-bio { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ============ CONTACT ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; margin-top: 3rem; }
.contact-info p { margin-bottom: 1.5rem; font-size: 1rem; }
.contact-detail { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; font-size: 0.9rem; color: var(--text-secondary); }
.contact-detail strong { color: var(--text-primary); min-width: 60px; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }

.contact-form input, .contact-form textarea {
    width: 100%; padding: 0.9rem 1rem; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); color: var(--text-primary); font-family: 'Inter', sans-serif; font-size: 0.9rem;
    transition: border-color 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out); outline: none;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: var(--text-muted); }
.contact-form textarea { resize: vertical; min-height: 120px; }

.form-status { padding: 0.8rem; border-radius: var(--radius); font-size: 0.85rem; display: none; text-align: center; }
.form-status.success { display: block; background: rgba(34,197,94,0.1); color: #22c55e; border: 1px solid rgba(34,197,94,0.2); }
.form-status.error { display: block; background: rgba(239,68,68,0.1); color: #ef4444; border: 1px solid rgba(239,68,68,0.2); }

/* ============ DETAIL OVERLAY ============ */
.detail-overlay {
    position: fixed; inset: 0; z-index: 200;
    background: rgba(5,8,16,0.92); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; transition: opacity 0.5s var(--ease-out), visibility 0.5s;
}
.detail-overlay.open { opacity: 1; visibility: visible; }

.detail-container {
    width: 90%; max-width: 960px; max-height: 85vh; background: var(--bg-secondary);
    border: 1px solid var(--border-hover); border-radius: 8px; overflow: hidden;
    display: flex; flex-direction: column; box-shadow: var(--shadow-lg);
    transform: translateY(30px) scale(0.97); transition: transform 0.5s var(--ease-spring);
}
.detail-overlay.open .detail-container { transform: translateY(0) scale(1); }

.detail-header { display: flex; align-items: center; justify-content: space-between; padding: 1.5rem 2rem; border-bottom: 1px solid var(--border); }
.detail-header h2 { font-size: 1.3rem; letter-spacing: 0.06rem; }
.detail-close { display: flex; align-items: center; gap: 0.5rem; background: none; border: none; color: var(--text-secondary); font-family: 'Inter', sans-serif; font-size: 0.85rem; cursor: pointer; transition: color 0.3s; padding: 0.4rem 0; }
.detail-close:hover { color: var(--text-primary); }

.detail-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); padding: 0 2rem; overflow-x: auto; }
.detail-tab { padding: 1rem 1.5rem; background: none; border: none; border-bottom: 2px solid transparent; color: var(--text-muted); font-family: 'Inter', sans-serif; font-size: 0.82rem; font-weight: 500; letter-spacing: 0.03rem; cursor: pointer; white-space: nowrap; transition: all 0.3s; }
.detail-tab:hover { color: var(--text-secondary); }
.detail-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.detail-body { padding: 2rem; overflow-y: auto; flex: 1; }
.tab-panel { display: none; animation: panelFadeIn 0.4s var(--ease-out); }
.tab-panel.active { display: block; }
@keyframes panelFadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.info-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; transition: border-color 0.3s; }
.info-card:hover { border-color: var(--border-hover); }
.info-card h4 { font-size: 0.95rem; margin-bottom: 0.75rem; letter-spacing: 0.03rem; }
.info-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; }

.info-row { display: flex; justify-content: space-between; padding: 0.75rem 0; border-bottom: 1px solid var(--border); font-size: 0.88rem; }
.info-row:last-child { border-bottom: none; }
.info-row .label { color: var(--text-secondary); }
.info-row .value { color: var(--text-primary); font-weight: 500; }
.info-row .value.accent { color: var(--accent); }

.info-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.info-table th { text-align: left; padding: 0.85rem 1rem; border-bottom: 1px solid var(--border-hover); color: var(--text-primary); font-weight: 600; font-size: 0.8rem; letter-spacing: 0.04rem; }
.info-table td { padding: 0.85rem 1rem; border-bottom: 1px solid var(--border); color: var(--text-secondary); }
.info-table tr:hover td { background: rgba(255,255,255,0.02); }

.status-badge { display: inline-block; padding: 0.2rem 0.6rem; border-radius: 3px; font-size: 0.75rem; font-weight: 500; letter-spacing: 0.03rem; }
.status-badge.active { background: rgba(34,197,94,0.12); color: #22c55e; }
.status-badge.pending { background: rgba(200,164,78,0.12); color: var(--accent); }

/* ============ LOGIN MODAL ============ */
.modal-overlay { position: fixed; inset: 0; z-index: 300; background: rgba(5,8,16,0.85); backdrop-filter: blur(6px); display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity 0.4s, visibility 0.4s; }
.modal-overlay.open { opacity: 1; visibility: visible; }

.modal-box { width: 90%; max-width: 420px; background: var(--bg-secondary); border: 1px solid var(--border-hover); border-radius: 8px; padding: 2.5rem; box-shadow: var(--shadow-lg); transform: translateY(20px) scale(0.97); transition: transform 0.5s var(--ease-spring); }
.modal-overlay.open .modal-box { transform: translateY(0) scale(1); }

.modal-box h2 { font-size: 1.3rem; text-align: center; margin-bottom: 0.5rem; }
.modal-box .modal-subtitle { text-align: center; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 2rem; }
.modal-box form { display: flex; flex-direction: column; gap: 1rem; }
.modal-box input { width: 100%; padding: 0.85rem 1rem; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-primary); font-family: 'Inter', sans-serif; font-size: 0.9rem; outline: none; transition: border-color 0.3s, box-shadow 0.3s; }
.modal-box input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }
.modal-box input::placeholder { color: var(--text-muted); }
.modal-close { position: absolute; top: 1rem; right: 1rem; background: none; border: none; color: var(--text-muted); font-size: 1.2rem; cursor: pointer; transition: color 0.3s; }
.modal-close:hover { color: var(--text-primary); }

/* ============ FOOTER ============ */
.site-footer { padding: 4rem 0 2rem; border-top: 1px solid var(--border); }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 3rem; }
.footer-brand img { height: 36px; margin-bottom: 1rem; }
.footer-brand p { font-size: 0.85rem; color: var(--text-muted); max-width: 280px; line-height: 1.6; }

.footer-links h4 { font-family: 'Inter', sans-serif; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1rem; text-transform: uppercase; color: var(--text-secondary); margin-bottom: 1rem; }
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links a { font-size: 0.85rem; color: var(--text-muted); transition: color 0.3s; }
.footer-links a:hover { color: var(--text-primary); }

.footer-bottom { padding-top: 2rem; border-top: 1px solid var(--border); display: flex; justify-content: space-between; font-size: 0.78rem; color: var(--text-muted); }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
    .site-nav { padding: 0 1.5rem; }
    .hamburger { display: flex; }
    .nav-links { position: fixed; top: var(--nav-height); left: 0; right: 0; background: rgba(11,17,32,0.98); backdrop-filter: blur(12px); flex-direction: column; padding: 2rem; gap: 1.5rem; border-bottom: 1px solid var(--border); transform: translateY(-100%); opacity: 0; visibility: hidden; transition: all 0.4s var(--ease-out); }
    .nav-links.open { transform: translateY(0); opacity: 1; visibility: visible; }

    .hero h1 { font-size: 2rem; }
    .hero-logo { width: 160px; }
    .hero-actions { flex-direction: column; align-items: center; }
    .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .leadership-grid { grid-template-columns: 1fr; }
    .info-grid { grid-template-columns: 1fr; }
    .footer-inner { flex-direction: column; gap: 2rem; }
    .footer-bottom { flex-direction: column; gap: 0.5rem; }
    section { padding: 4rem 0; }
    .section-heading { font-size: 1.7rem; }
    .detail-container { width: 95%; max-height: 90vh; }
    .detail-header { padding: 1.25rem 1.5rem; }
    .detail-body { padding: 1.5rem; }
    .detail-tabs { padding: 0 1rem; }
    .detail-tab { padding: 0.8rem 1rem; font-size: 0.78rem; }
}

@media (max-width: 480px) {
    .container { padding: 0 1.25rem; }
    .hero h1 { font-size: 1.6rem; }
    .nav-logo span { display: none; }
    .about-metrics { grid-template-columns: 1fr; }
}