* {
    box-sizing: border-box;
}

:root {
    --primary: #5b5fef;
    --primary-dark: #4145c8;
    --accent: #ff7657;
    --bg: #f6f7fb;
    --surface: #ffffff;
    --text: #171a2b;
    --muted: #6d7284;
    --border: #e5e7f0;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background: var(--surface);
}

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

.marketing-container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.marketing-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, .9);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(229, 231, 240, .8);
}

.nav-wrap {
    min-height: 76px;
    display: flex;
    align-items: center;
    gap: 34px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 21px;
    font-weight: 900;
}

.brand-mark {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border-radius: 13px;
    background: var(--primary);
    color: white;
    font-size: 14px;
}

.marketing-nav {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-left: auto;
    color: var(--muted);
    font-weight: 600;
}

.nav-cta,
.primary-button,
.white-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0 22px;
    border-radius: 15px;
    font-weight: 800;
}

.nav-cta,
.primary-button {
    background: var(--primary);
    color: white;
}

.hero-section {
    overflow: hidden;
    background:
        radial-gradient(circle at 8% 18%, rgba(91, 95, 239, .12), transparent 30%),
        radial-gradient(circle at 85% 28%, rgba(255, 118, 87, .11), transparent 28%),
        var(--bg);
}

.hero-grid {
    min-height: 680px;
    display: grid;
    grid-template-columns: 1.04fr .96fr;
    gap: 70px;
    align-items: center;
    padding: 80px 0;
}

.eyebrow {
    display: inline-block;
    color: var(--primary);
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 1.4px;
}

.eyebrow.light {
    color: #dfe0ff;
}

.hero-copy h1,
.content-page h1 {
    margin: 14px 0 22px;
    font-size: clamp(44px, 6vw, 72px);
    line-height: 1.02;
    letter-spacing: -2.5px;
}

.hero-copy p,
.content-page p {
    max-width: 650px;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 12px;
    margin-top: 34px;
}

.secondary-button {
    min-height: 50px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 22px;
    border-radius: 15px;
    border: 1px solid var(--border);
    background: white;
    font-weight: 800;
}

.store-note {
    margin-top: 16px;
    color: var(--muted);
    font-size: 13px;
}

.hero-preview {
    display: grid;
    place-items: center;
}

.preview-shell {
    width: min(370px, 100%);
    padding: 22px;
    border: 10px solid #171a2b;
    border-radius: 44px;
    background: white;
    box-shadow: 0 35px 80px rgba(30, 33, 69, .18);
    transform: rotate(2deg);
}

.preview-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 22px;
}

.preview-logo {
    font-weight: 900;
    font-size: 20px;
}

.preview-search {
    padding: 14px 16px;
    border-radius: 15px;
    background: var(--bg);
    color: #9a9dac;
    font-size: 13px;
}

.preview-label {
    margin: 22px 0 12px;
    font-weight: 800;
}

.activity-preview {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 13px;
    align-items: center;
    padding: 10px 0;
}

.activity-preview strong,
.activity-preview span {
    display: block;
}

.activity-preview span {
    margin-top: 5px;
    color: var(--muted);
    font-size: 12px;
}

.activity-visual {
    height: 72px;
    border-radius: 18px;
}

.activity-visual.one {
    background: linear-gradient(135deg, #7175ff, #b7b9ff);
}

.activity-visual.two {
    background: linear-gradient(135deg, #ff7657, #ffc3b5);
}

.preview-nav {
    margin-top: 18px;
    padding: 14px;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--primary);
    font-size: 20px;
}

.feature-section {
    padding: 110px 0;
}

.feature-section h2,
.final-cta h2 {
    margin: 12px 0 40px;
    font-size: clamp(34px, 4vw, 52px);
    letter-spacing: -1.5px;
}

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

.feature-card {
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: white;
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 15px;
    background: #eeeeff;
    color: var(--primary);
    font-size: 22px;
}

.feature-card h3 {
    margin: 20px 0 9px;
}

.feature-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.6;
}

.final-cta {
    padding: 0 0 90px;
}

.final-cta-box {
    min-height: 260px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    padding: 50px;
    color: white;
    border-radius: 32px;
    background: linear-gradient(135deg, #4145c8, #6d71ff);
}

.final-cta-box h2 {
    max-width: 720px;
    margin-bottom: 0;
}

.white-button {
    flex: 0 0 auto;
    background: white;
    color: var(--primary-dark);
}

.marketing-footer {
    padding: 50px 0;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.footer-links {
    display: flex;
    gap: 24px;
    color: var(--muted);
}

.content-page {
    min-height: 620px;
    padding: 110px 0;
    background: var(--bg);
}

.marketing-container.narrow {
    max-width: 850px;
}

.content-page h1 {
    font-size: clamp(40px, 5vw, 60px);
}

.stack-list {
    display: grid;
    gap: 12px;
    margin-top: 36px;
}

.stack-list > div {
    padding: 22px;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: white;
}

.stack-list strong,
.stack-list span {
    display: block;
}

.stack-list span {
    margin-top: 7px;
    color: var(--muted);
}

@media (max-width: 920px) {
    .marketing-nav {
        display: none;
    }

    .nav-cta {
        margin-left: auto;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        min-height: auto;
        padding: 70px 0;
    }

    .hero-preview {
        order: -1;
    }

    .preview-shell {
        transform: none;
    }

    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 620px) {
    .marketing-container {
        width: min(100% - 28px, 1180px);
    }

    .nav-wrap {
        min-height: 66px;
    }

    .nav-cta {
        min-height: 44px;
        padding: 0 15px;
        font-size: 13px;
    }

    .hero-grid {
        gap: 40px;
        padding: 48px 0 60px;
    }

    .hero-copy h1 {
        font-size: 45px;
    }

    .hero-copy p {
        font-size: 16px;
    }

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

    .feature-section {
        padding: 74px 0;
    }

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

    .final-cta-box {
        align-items: flex-start;
        flex-direction: column;
        padding: 32px 26px;
    }

    .footer-grid,
    .footer-links {
        align-items: flex-start;
        flex-direction: column;
    }
}