:root {
    color-scheme: dark;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #090e1a;
    color: #f8fafc;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    display: grid;
    place-items: center;
    padding: 24px;
    background:
        radial-gradient(circle at 20% 20%, rgba(37, 99, 235, 0.24), transparent 35%),
        radial-gradient(circle at 80% 85%, rgba(124, 58, 237, 0.2), transparent 38%),
        #090e1a;
}

.card {
    width: min(100%, 560px);
    padding: clamp(28px, 7vw, 52px);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 28px;
    background: rgba(17, 24, 39, 0.94);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
    text-align: center;
}

.mark {
    width: 72px;
    height: 72px;
    margin: 0 auto 18px;
    display: grid;
    place-items: center;
    border-radius: 20px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    font-size: 25px;
    font-weight: 900;
    letter-spacing: -0.04em;
    box-shadow: 0 16px 36px rgba(37, 99, 235, 0.32);
}

.eyebrow {
    margin: 0 0 8px;
    color: #93c5fd;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: clamp(30px, 8vw, 46px);
    line-height: 1.05;
}

.description {
    margin: 18px auto 26px;
    max-width: 440px;
    color: #cbd5e1;
    line-height: 1.6;
}

.code-section {
    margin: 24px 0;
    padding: 18px;
    border: 1px solid rgba(147, 197, 253, 0.28);
    border-radius: 18px;
    background: rgba(30, 41, 59, 0.72);
}

.code-section span,
.code-section strong {
    display: block;
}

.code-section span {
    color: #94a3b8;
    font-size: 13px;
}

.code-section strong {
    margin: 8px 0 14px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: clamp(23px, 6vw, 32px);
    letter-spacing: 0.08em;
}

button,
.store-button {
    border: 0;
    border-radius: 13px;
    cursor: pointer;
    font: inherit;
    font-weight: 750;
}

.secondary {
    padding: 10px 16px;
    background: #dbeafe;
    color: #172554;
}

.store-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 22px;
}

.store-button {
    display: flex;
    min-height: 68px;
    flex-direction: column;
    justify-content: center;
    padding: 11px 14px;
    background: #f8fafc;
    color: #0f172a;
    text-decoration: none;
    font-size: 18px;
}

.store-button.primary {
    outline: 3px solid #60a5fa;
    outline-offset: 3px;
}

.store-small {
    font-size: 11px;
    font-weight: 600;
}

.hint,
.status {
    color: #94a3b8;
    font-size: 13px;
    line-height: 1.5;
}

.status {
    min-height: 20px;
    margin: 9px 0 0;
    color: #86efac;
}

.error {
    color: #fca5a5;
    font-weight: 700;
}

@media (max-width: 520px) {
    .store-actions {
        grid-template-columns: 1fr;
    }
}