:root {
    --background: #080b10;
    --surface: #10151d;
    --surface-hover: #151c26;
    --border: #252e3b;
    --text: #f4f7fb;
    --muted: #9aa7b6;
    --accent: #7de2c3;
    --max-width: 1180px;
}
* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(
            circle at 80% 10%,
            rgba(125, 226, 195, 0.08),
            transparent 28rem
        ),
        var(--background);
    color: var(--text);
    font-family:
        Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
        "Segoe UI", sans-serif;
    line-height: 1.6;
}
a {
    color: inherit;
    text-decoration: none;
}
.site-header {
    width: min(calc(100% - 40px), var(--max-width));
    margin: 0 auto;
    padding: 28px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.brand {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}
nav {
    display: flex;
    gap: 28px;
}
nav a {
    color: var(--muted);
    font-size: 0.9rem;
}
nav a:hover {
    color: var(--text);
}
main,
footer {
    width: min(calc(100% - 40px), var(--max-width));
    margin: 0 auto;
}
.hero {
    min-height: 75vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 80px 0 120px;
}
.eyebrow {
    margin: 0 0 20px;
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}
h1,
h2,
h3,
p {
    margin-top: 0;
}
h1 {
    max-width: 950px;
    margin-bottom: 28px;
    font-size: clamp(3rem, 8vw, 6.8rem);
    line-height: 0.98;
    letter-spacing: -0.06em;
}
h1 span {
    color: var(--muted);
}
.hero-description {
    max-width: 690px;
    margin-bottom: 36px;
    color: var(--muted);
    font-size: clamp(1rem, 2vw, 1.25rem);
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}
.primary-button,
.secondary-button {
    padding: 13px 20px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-weight: 600;
}
.primary-button {
    background: var(--text);
    color: var(--background);
}
.secondary-button:hover {
    background: var(--surface);
}
.section {
    padding: 110px 0;
    border-top: 1px solid var(--border);
}
.section-heading {
    max-width: 730px;
    margin-bottom: 48px;
}
h2 {
    font-size: clamp(2rem, 5vw, 3.8rem);
    line-height: 1.08;
    letter-spacing: -0.045em;
}
.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.card {
    min-height: 280px;
    padding: 28px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    transition:
        transform 160ms ease,
        background 160ms ease;
}
.card:hover {
    transform: translateY(-4px);
    background: var(--surface-hover);
}
.card span {
    color: var(--accent);
    font-family: monospace;
}
.card h3 {
    margin-top: 80px;
    margin-bottom: 12px;
    font-size: 1.4rem;
}
.card p,
.about-content {
    color: var(--muted);
}
.about {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 80px;
}
.about-content {
    font-size: 1.05rem;
}
footer {
    padding: 34px 0;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    color: var(--muted);
    font-size: 0.9rem;
}
footer p {
    margin: 0;
}
footer a:hover {
    color: var(--text);
}
@media (max-width: 800px) {
    nav {
        gap: 16px;
    }
    nav a:not(:last-child) {
        display: none;
    }
    .hero {
        min-height: auto;
        padding: 110px 0;
    }
    .cards,
    .about {
        grid-template-columns: 1fr;
    }
    .about {
        gap: 28px;
    }
    footer {
        flex-direction: column;
        gap: 8px;
    }
}