* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #18181b;
    background: #ffffff;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}


/* HEADER */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid #eeeeef;
}

.nav {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    font-size: 22px;
    font-weight: 750;
    letter-spacing: -0.7px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
    font-size: 14px;
    font-weight: 550;
    color: #52525b;
}

.nav-links a:hover {
    color: #18181b;
}

.sign-in {
    padding: 10px 17px;
    color: #ffffff !important;
    background: #18181b;
    border-radius: 8px;
}


/* HERO */

.hero {
    padding: 118px 0 126px;
    background:
        radial-gradient(circle at 50% 0%, #eef4ff 0, transparent 40%),
        #ffffff;
}

.hero-inner {
    max-width: 900px;
    text-align: center;
}

.eyebrow,
.section-label {
    display: inline-flex;
    padding: 7px 12px;
    border: 1px solid #dbe5ff;
    border-radius: 999px;
    color: #2563eb;
    background: #f7f9ff;
    font-size: 13px;
    font-weight: 650;
}

.hero h1 {
    margin: 26px auto 24px;
    max-width: 900px;
    font-size: clamp(52px, 6vw, 78px);
    line-height: 1.02;
    letter-spacing: -4px;
    font-weight: 760;
}

.hero h1 span {
    color: #2563eb;
}

.hero-copy {
    max-width: 720px;
    margin: 0 auto;
    color: #64646f;
    font-size: 19px;
    line-height: 1.7;
}

.hero-actions {
    margin-top: 38px;
    display: flex;
    justify-content: center;
    gap: 12px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 22px;
    border-radius: 9px;
    font-size: 14px;
    font-weight: 650;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button-primary {
    color: #ffffff;
    background: #18181b;
    box-shadow: 0 5px 18px rgba(24, 24, 27, 0.14);
}

.button-secondary {
    border: 1px solid #dedee2;
    background: #ffffff;
}


/* SECTIONS */

.intelligence-flow,
.core-intelligence,
.how-it-works {
    padding: 110px 0;
}

.intelligence-flow {
    background: #fafafa;
    border-top: 1px solid #eeeeef;
    border-bottom: 1px solid #eeeeef;
}

.section-heading {
    max-width: 700px;
    margin-bottom: 55px;
}

.section-heading > span {
    color: #2563eb;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.section-heading h2,
.intelligence-copy h2,
.final-cta h2 {
    margin: 13px 0 18px;
    font-size: clamp(34px, 4vw, 48px);
    line-height: 1.12;
    letter-spacing: -2px;
}

.section-heading p,
.intelligence-copy p {
    color: #71717a;
    font-size: 17px;
    line-height: 1.7;
}


/* FLOW CARDS */

.flow-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.flow-card {
    min-height: 260px;
    padding: 28px;
    background: #ffffff;
    border: 1px solid #e8e8eb;
    border-radius: 14px;
}

.flow-number {
    margin-bottom: 62px;
    color: #2563eb;
    font-size: 12px;
    font-weight: 700;
}

.flow-card h3 {
    margin: 0 0 12px;
    font-size: 19px;
    letter-spacing: -0.4px;
}

.flow-card p {
    margin: 0;
    color: #71717a;
    font-size: 14px;
    line-height: 1.65;
}


/* MARKET INTELLIGENCE */

.intelligence-layout {
    display: grid;
    grid-template-columns: 1fr 0.85fr;
    gap: 100px;
    align-items: center;
}

.intelligence-copy h2 {
    margin-top: 20px;
}

.signal-card {
    padding: 18px;
    border: 1px solid #e4e4e7;
    border-radius: 16px;
    background: #fafafa;
    box-shadow: 0 15px 50px rgba(24, 24, 27, 0.06);
}

.signal-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 19px 20px;
    background: #ffffff;
    border: 1px solid #eeeeef;
    border-radius: 10px;
}

.signal-row span {
    color: #52525b;
    font-size: 14px;
}

.signal-row strong {
    font-size: 14px;
}

.signal-final {
    color: #ffffff;
    background: #18181b;
    border-color: #18181b;
}

.signal-final span {
    color: #d4d4d8;
}

.signal-arrow {
    padding: 7px 0;
    color: #a1a1aa;
    text-align: center;
}


/* HOW IT WORKS */

.how-it-works {
    background: #fafafa;
    border-top: 1px solid #eeeeef;
}

.steps {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    align-items: start;
    gap: 18px;
}

.step {
    padding-top: 5px;
}

.step strong {
    display: block;
    margin-bottom: 10px;
    font-size: 16px;
}

.step p {
    margin: 0;
    color: #71717a;
    font-size: 14px;
    line-height: 1.6;
}

.step-arrow {
    padding-top: 5px;
    color: #b4b4bc;
    font-size: 20px;
}


/* FINAL CTA */

.final-cta {
    padding: 110px 0;
    color: #ffffff;
    background: #111827;
}

.final-cta-inner {
    max-width: 820px;
    text-align: center;
}

.final-cta-inner > span {
    color: #93b4ff;
    font-size: 14px;
    font-weight: 700;
}

.final-cta h2 {
    margin: 20px auto 32px;
    max-width: 760px;
}

.button-light {
    color: #18181b;
    background: #ffffff;
}


/* FOOTER */

.site-footer {
    padding: 30px 0;
    color: #71717a;
    background: #ffffff;
    border-top: 1px solid #eeeeef;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
}


/* RESPONSIVE */

@media (max-width: 900px) {
    .flow-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .intelligence-layout {
        grid-template-columns: 1fr;
        gap: 50px;
    }

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

    .step-arrow {
        transform: rotate(90deg);
        width: 20px;
    }
}

@media (max-width: 650px) {
    .container {
        width: min(100% - 30px, 1180px);
    }

    .nav-links > a:not(.sign-in) {
        display: none;
    }

    .hero {
        padding: 85px 0 90px;
    }

    .hero h1 {
        letter-spacing: -2.5px;
    }

    .hero-copy {
        font-size: 17px;
    }

    .hero-actions {
        flex-direction: column;
    }

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

    .intelligence-flow,
    .core-intelligence,
    .how-it-works {
        padding: 80px 0;
    }

    .footer-inner {
        flex-direction: column;
        gap: 8px;
    }
}