:root {
    color-scheme: light;
    --ink: #182521;
    --muted: #5b6a64;
    --paper: #f5f7f2;
    --line: #d8dfd7;
    --green: #216b51;
    --green-dark: #174d3b;
    --coral: #d76c52;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--paper);
    color: var(--ink);
    font-family: "Segoe UI", sans-serif;
}

.topbar {
    min-height: 72px;
    padding: 0 clamp(24px, 7vw, 104px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--line);
}

.brand {
    color: var(--ink);
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
}

.topbar-label {
    color: var(--muted);
    font-size: 13px;
}

.welcome {
    width: min(760px, calc(100% - 48px));
    margin: clamp(72px, 13vh, 144px) auto;
}

.eyebrow {
    margin: 0 0 24px;
    color: var(--green);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-family: Georgia, serif;
    font-size: clamp(42px, 7vw, 72px);
    font-weight: 400;
    line-height: 1.08;
}

h1 span {
    color: var(--green);
}

.intro {
    max-width: 540px;
    margin: 28px 0 40px;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.7;
}

.api-link {
    min-height: 58px;
    width: min(100%, 390px);
    padding: 0 18px;
    display: flex;
    align-items: center;
    gap: 16px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
    text-decoration: none;
}

.api-link:hover {
    border-color: var(--green);
}

.method {
    color: var(--green);
    font-size: 11px;
    font-weight: 800;
}

.api-link code {
    font-size: 14px;
}

.arrow {
    margin-left: auto;
    color: var(--coral);
    font-size: 20px;
}

@media (max-width: 520px) {
    .topbar {
        min-height: 64px;
        padding-inline: 24px;
    }

    .welcome {
        margin-top: 72px;
    }

    .intro {
        font-size: 16px;
    }
}