:root {
    --bg: #0f1724;
    --card: #0b1220;
    --muted: #9aa4b2;
    --accent: #6ee7b7;
    --glass: rgba(255, 255, 255, 0.03);
    --radius: 14px;
    --max-width: 1100px;
    --container-padding: 24px;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    color-scheme: dark;
}

* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
    width: 100%;
    margin: 0;
    background: linear-gradient(180deg, #071025 0%, #071827 60%);
    color: #e6eef6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.4;
    padding: 40px 16px;
    display: flex;
    justify-content: center;
    font-size: 16px;
}

.pointer:hover {
    cursor: pointer;
}

.wrap {
    width: 100%;
    max-width: var(--max-width);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    margin-bottom: 28px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), #3b82f6);
    display: inline-grid;
    place-items: center;
    font-weight: 700;
    color: #022;
    box-shadow: 0 4px 18px rgba(6, 22, 37, 0.6);
}

.brand h1 {
    font-size: 16px;
    margin: 0;
}

.nav a.cta {
    background: linear-gradient(90deg, #22c55e, #06b6d4);
    color: #022;
    padding: 10px 14px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
}

.nav a.ghost {
    color: var(--muted);
    text-decoration: none;
    padding: 8px;
}

.hero {
    text-align: center;
    padding: 44px 20px;
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
    backdrop-filter: blur(6px);
    box-shadow: 0 8px 30px rgba(4, 8, 15, 0.6);
    margin-bottom: 34px;
}

.hero h2 {
    margin: 0;
    font-size: clamp(26px, 4vw, 40px);
    letter-spacing: -0.02em;
}

.hero p {
    color: var(--muted);
    max-width: 720px;
    margin: 12px auto 20px;
}

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

.btn {
    padding: 10px 16px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
}

.btn.primary {
    background: linear-gradient(90deg, #06b6d4, #6ee7b7);
    color: #022;
}

.btn.secondary {
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--muted);
    background: transparent;
}

.what {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 28px;
    align-items: center;
    margin-bottom: 38px;
}

.what .text h3 {
    margin: 0 0 10px;
    font-size: 20px;
}

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

.illustration {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
    padding: 18px;
    border-radius: 12px;
}

.arch {
    width: 100%;
    height: 260px;
    border-radius: 8px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
    display: grid;
    place-items: center;
    color: var(--muted);
}

.features {
    margin-bottom: 34px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.card {
    background: var(--glass);
    padding: 16px;
    border-radius: 12px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
    display: grid;
    place-items: center;
}

.card h4 {
    margin: 0 0 4px;
    font-size: 15px;
}

.card p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.tab {
    padding: 8px 12px;
    border-radius: 8px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.03);
    cursor: pointer;
    color: var(--muted);
}

.tab.active {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.06);
    color: #fff;
}

pre {
    background: #071726;
    padding: 16px;
    border-radius: 10px;
    overflow: auto;
    font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 13px;
}

.snippet-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 8px;
}

.link-plain {
    color: var(--muted);
    text-decoration: none;
    font-weight: 600;
}

.standalone {
    padding: 22px;
    border-radius: 12px;
    text-align: center;
    background: linear-gradient(90deg, rgba(14, 21, 34, 0.6), rgba(7, 12, 20, 0.4));
    margin-bottom: 36px;
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 36px;
}

.accordion {
    background: var(--glass);
    padding: 12px;
    border-radius: 10px;
}

.q {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    cursor: pointer;
    padding: 10px 4px;
}

.a {
    color: var(--muted);
    padding: 0 4px 10px 4px;
    display: none;
}

footer {
    background: #030612;
    padding: 20px;
    border-radius: 12px;
    color: var(--muted);
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
}

footer .partners {
    display: flex;
    gap: 12px;
    align-items: center;
}

footer a {
    color: var(--muted);
    text-decoration: none;
}

@media (max-width:980px) {
    .what {
        grid-template-columns: 1fr;
    }

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

    .faq-grid {
        grid-template-columns: 1fr;
    }
    footer {
        flex-direction: column;
    }
}

@media (max-width:640px) {
    body {
        padding: 20px;
    }

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

    .nav a.cta {
        display: none;
    }

    .brand h1 {
        display: none;
    }
}

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

.center {
    display: flex;
    justify-content: center;
}