:root {
    color-scheme: light dark;
    font-family: "Inter", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.5;
    font-size: 16px;
    --bg: #0f172a;
    --surface: rgba(15, 23, 42, 0.75);
    --border: rgba(148, 163, 184, 0.35);
    --text: #e2e8f0;
    --accent: #a5b4fc;
    --muted: #94a3b8;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: radial-gradient(circle at top, #312e81 0%, #0f172a 45%, #020617 100%);
    color: var(--text);
    min-height: 100vh;
}

.page {
    max-width: 960px;
    margin: 0 auto;
    padding: 3rem 1.5rem 4rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.hero {
    text-align: center;
    margin-bottom: 1rem;
}

.hero h1 {
    margin: 0.3rem 0 0.8rem;
    font-size: clamp(2.2rem, 5vw, 3rem);
}

.hero .eyebrow {
    letter-spacing: 0.2em;
    text-transform: uppercase;
    font-size: 0.78rem;
    color: var(--muted);
}

.hero .lede {
    max-width: 720px;
    margin: 0 auto;
    color: rgba(226, 232, 240, 0.85);
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.75rem;
    box-shadow: 0 25px 40px rgba(2, 6, 23, 0.6);
}

.card h2 {
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.35rem;
}

.config-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.config-table th,
.config-table td {
    padding: 0.8rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.3);
    text-align: left;
}

.config-table th {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.caption {
    color: var(--muted);
    margin-top: -0.3rem;
    margin-bottom: 1rem;
}

.instrument-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
}

.instrument-list li {
    background: rgba(49, 46, 129, 0.4);
    border: 1px solid rgba(129, 140, 248, 0.4);
    border-radius: 12px;
    padding: 0.85rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.instrument-list .label {
    font-variant-numeric: tabular-nums;
    font-weight: 600;
    color: var(--accent);
    width: 2ch;
}

.kv {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.9rem 1.2rem;
    margin: 0;
}

.kv div {
    background: rgba(15, 23, 42, 0.55);
    border-radius: 10px;
    padding: 0.9rem 1rem;
    border: 1px solid rgba(148, 163, 184, 0.25);
}

.kv dt {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin-bottom: 0.4rem;
}

.kv dd {
    margin: 0;
    font-weight: 600;
}

.future ul {
    margin: 0;
    padding-left: 1rem;
    color: rgba(226, 232, 240, 0.9);
}

.future li + li {
    margin-top: 0.5rem;
}

.feature-list {
    margin: 0;
    padding-left: 1rem;
    color: rgba(226, 232, 240, 0.95);
}

.feature-list li + li {
    margin-top: 0.45rem;
}

code {
    background: rgba(15, 23, 42, 0.6);
    padding: 0.1rem 0.3rem;
    border-radius: 4px;
}

@media (max-width: 600px) {
    .card {
        padding: 1.25rem;
    }

    .config-table th,
    .config-table td {
        padding: 0.6rem;
    }
}