:root {
    --brand-green: #00ad52;
    --brand-green-dark: #0d7a43;
    --background: #f5fbf7;
    --surface: #ffffff;
    --surface-tint: #eef8f0;
    --border: #d7e8dc;
    --text: #183326;
    --muted: #5d7368;
    --shadow: 0 22px 50px rgba(24, 51, 38, 0.08);
    --radius: 24px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top right, rgba(0, 173, 82, 0.18), transparent 30%),
        linear-gradient(180deg, #f9fdf9 0%, var(--background) 100%);
    color: var(--text);
}

a {
    color: inherit;
}

.shell {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0 64px;
}

.shell-narrow {
    width: min(760px, calc(100% - 32px));
}

.hero {
    padding: 40px;
    margin-top: 12px;
}

.card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, var(--surface-tint) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-top: 18px;
}

.eyebrow {
    color: var(--brand-green-dark);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
h3 {
    margin: 0 0 14px;
    line-height: 1.08;
}

h1 {
    font-size: clamp(2.8rem, 8vw, 4.8rem);
    letter-spacing: -0.04em;
}

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

h2 {
    font-size: 1.2rem;
}

h3 {
    font-size: 1rem;
    margin-top: 20px;
}

p {
    margin: 0 0 14px;
    line-height: 1.6;
}

.lede {
    color: var(--muted);
    font-size: 1.08rem;
    max-width: 42rem;
}

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

.small {
    font-size: 0.92rem;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 20px;
    border-radius: 999px;
    background: var(--brand-green);
    color: #fff;
    font-weight: 700;
    text-decoration: none;
}

.button:hover {
    background: var(--brand-green-dark);
}

.button-secondary {
    background: rgba(0, 173, 82, 0.1);
    color: var(--brand-green-dark);
}

.scan-code {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding: 0 14px;
    border-radius: 999px;
    background: #e8f7ec;
    color: var(--brand-green-dark);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.95rem;
    font-weight: 700;
}

.prose h1 {
    font-size: clamp(2.2rem, 6vw, 3.2rem);
}

.prose h2 {
    margin-top: 28px;
}

.back-link {
    display: inline-block;
    margin-bottom: 18px;
    color: var(--brand-green-dark);
    font-weight: 600;
    text-decoration: none;
}

@media (max-width: 780px) {
    .shell {
        width: calc(100% - 20px);
        padding: 20px 0 40px;
    }

    .hero,
    .card {
        padding: 22px;
    }

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