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

:root {
    --bg: #0a0a0b;
    --bg-subtle: #111113;
    --surface: #18181b;
    --border: #27272a;
    --text: #fafafa;
    --text-muted: #a1a1aa;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --radius: 12px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Nav */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 20px 0;
    transition: background 0.3s, padding 0.3s;
}

.nav.scrolled {
    background: rgba(10, 10, 11, 0.9);
    backdrop-filter: blur(12px);
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.25rem;
    font-weight: 300;
    text-decoration: none;
    color: var(--text);
    letter-spacing: -0.02em;
}

.logo span {
    font-weight: 700;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    transition: color 0.2s;
}

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

.nav-links .btn {
    color: #fff;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    transition: transform 0.3s, opacity 0.3s;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 24px;
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background 0.2s, transform 0.2s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 14px 36px;
    font-size: 1rem;
}

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

.btn-outline:hover {
    background: var(--surface);
    border-color: var(--text-muted);
}

/* Hero */
.hero {
    padding: 180px 0 120px;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.accent {
    color: var(--accent);
}

.hero-sub {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 auto 40px;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Sections */
section {
    padding: 100px 0;
}

h2 {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.section-sub {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 56px;
    max-width: 500px;
}

.services, .why {
    text-align: center;
}

.services .section-sub,
.why .section-sub {
    margin-left: auto;
    margin-right: auto;
}

/* Grid */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

/* Cards */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 28px;
    text-align: left;
    transition: border-color 0.3s, transform 0.3s;
}

.card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.card-icon {
    width: 40px;
    height: 40px;
    color: var(--accent);
    margin-bottom: 20px;
}

.card-icon svg {
    width: 100%;
    height: 100%;
}

.card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Ventures */
.ventures {
    background: var(--bg-subtle);
}

.venture-card {
    display: block;
    text-decoration: none;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 32px;
    transition: border-color 0.3s, transform 0.3s;
}

.venture-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.venture-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    background: rgba(59, 130, 246, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.venture-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.venture-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Why */
.why-item {
    text-align: left;
}

.why-num {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    display: block;
    margin-bottom: 12px;
}

.why-item h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.why-item p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Contact */
.contact {
    text-align: center;
    background: var(--bg-subtle);
}

.contact .section-sub {
    margin-left: auto;
    margin-right: auto;
}

.contact .btn-lg {
    margin-top: 8px;
}

/* Footer */
.footer {
    padding: 48px 0;
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 4px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text);
}

.footer-copy {
    color: var(--text-muted);
    font-size: 0.8rem;
    width: 100%;
    text-align: center;
    margin-top: 16px;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 10, 11, 0.95);
        backdrop-filter: blur(12px);
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.open {
        display: flex;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero {
        padding: 140px 0 80px;
    }

    .hero h1 {
        font-size: 2.25rem;
    }

    .grid-3, .grid-2 {
        grid-template-columns: 1fr;
    }

    section {
        padding: 72px 0;
    }

    h2 {
        font-size: 1.75rem;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }
}