:root {
    --background: #0a0a0a;
    --surface: #111111;
    --surface-light: #171717;
    --text: #f4f4f4;
    --muted: #9b9b9b;
    --border: #292929;
    --accent: #8b5cf6;

    --max-width: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;

    background: var(--background);
    color: var(--text);

    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    line-height: 1.6;
}


/* NAV */

nav {
    position: sticky;
    top: 0;
    z-index: 10;

    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(12px);

    border-bottom: 1px solid var(--border);
}

.nav-content {
    max-width: var(--max-width);
    margin: auto;
    padding: 18px 24px;

    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: var(--text);
    text-decoration: none;

    font-size: 18px;
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 28px;
}

.nav-links a {
    color: var(--muted);
    text-decoration: none;

    font-size: 14px;

    transition: color 0.2s;
}

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


/* GENERAL */

main {
    max-width: var(--max-width);
    margin: auto;
    padding: 0 24px;
}

section {
    padding: 110px 0;
    border-bottom: 1px solid var(--border);
}

.eyebrow {
    margin-bottom: 16px;

    color: var(--accent);

    font-size: 12px;
    font-weight: 700;

    letter-spacing: 0.15em;
}

.section-heading {
    max-width: 700px;
    margin-bottom: 50px;
}

.section-heading h2 {
    margin: 0 0 18px;

    font-size: clamp(32px, 5vw, 52px);
    line-height: 1.1;
}

.section-heading p {
    color: var(--muted);
}


/* HERO */

.hero {
    min-height: 88vh;

    display: flex;
    flex-direction: column;
    justify-content: center;

    border-bottom: none;
}

.hero h1 {
    margin: 0;

    font-size: clamp(72px, 12vw, 150px);
    line-height: 0.95;

    letter-spacing: -0.06em;
}

.hero h2 {
    max-width: 800px;

    margin: 32px 0 20px;

    color: #d4d4d4;

    font-size: clamp(28px, 4vw, 48px);
    line-height: 1.1;

    font-weight: 500;
}

.hero-description {
    max-width: 650px;

    color: var(--muted);

    font-size: 18px;
}

.hero-buttons {
    display: flex;
    gap: 14px;

    margin-top: 30px;
}

.button {
    padding: 12px 20px;

    border: 1px solid var(--border);
    border-radius: 8px;

    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}

.button.primary {
    background: var(--accent);
    color: #0a0a0a;
    border-color: var(--accent);
}

.button.secondary {
    color: var(--text);
}


/* DEMO */

.demo-container {
    overflow: hidden;

    border: 1px solid var(--border);
    border-radius: 12px;

    background: var(--surface);
}

.demo-container video {
    display: block;

    width: 100%;
    height: auto;
}

.caption {
    max-width: 700px;

    margin-top: 18px;

    color: var(--muted);
    font-size: 14px;
}


/* RESEARCH */

.research-section {
    max-width: 900px;
}

blockquote {
    margin: 25px 0 35px;

    font-size: clamp(32px, 5vw, 56px);
    line-height: 1.15;

    letter-spacing: -0.03em;
}

.research-section > p:last-child {
    max-width: 700px;

    color: var(--muted);
    font-size: 18px;
}


/* PIPELINE */

.pipeline {
    display: flex;
    align-items: center;

    gap: 12px;

    overflow-x: auto;

    padding-bottom: 20px;
}

.pipeline-item {
    min-width: 125px;
    min-height: 105px;

    padding: 18px;

    display: flex;
    flex-direction: column;
    justify-content: space-between;

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
}

.pipeline-item span {
    color: var(--muted);
    font-size: 11px;
}

.pipeline-item strong {
    font-size: 14px;
}

.arrow {
    color: var(--muted);
}


/* METRICS */

.metrics {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 16px;

    margin-bottom: 60px;
}

.metric-card {
    padding: 34px;

    display: flex;
    flex-direction: column;

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
}

.metric-value {
    font-size: clamp(38px, 6vw, 64px);
    font-weight: 600;

    letter-spacing: -0.04em;
}

.metric-name {
    margin-top: 5px;

    color: var(--muted);
    font-size: 13px;
}


/* FINDING */

.finding {
    padding: 45px;

    background: var(--surface-light);

    border: 1px solid var(--border);
    border-radius: 12px;
}

.finding > div {
    max-width: 750px;
}

.finding h3 {
    margin: 0 0 20px;

    font-size: clamp(28px, 4vw, 42px);
    line-height: 1.15;
}

.finding p:last-child {
    color: var(--muted);
}


/* TECH */

.tech-list {
    display: flex;
    flex-wrap: wrap;

    gap: 10px;
}

.tech-list span {
    padding: 9px 14px;

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 100px;

    color: #d5d5d5;

    font-size: 13px;
}

.limitations {
    max-width: 750px;

    margin-top: 70px;
    padding-top: 40px;

    border-top: 1px solid var(--border);
}

.limitations h3 {
    font-size: 24px;
}

.limitations p {
    color: var(--muted);
}


/* FOOTER */

footer {
    max-width: var(--max-width);

    margin: auto;
    padding: 40px 24px 70px;

    color: var(--muted);

    font-size: 13px;
}


/* MOBILE */

@media (max-width: 700px) {

    section {
        padding: 75px 0;
    }

    .nav-links {
        display: none;
    }

    .hero {
        min-height: 80vh;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .finding {
        padding: 28px;
    }
}