:root {
    color-scheme: dark;
    --bg: #0d0f10;
    --bg-elev: #16191b;
    --fg: #e6e8ea;
    --fg-muted: #8a9097;
    --accent: #d96a2a;
    --accent-hover: #f08038;
    --border: #24282b;
    --radius: 10px;
    --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, sans-serif;
    --font-mono: ui-monospace, "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

main {
    max-width: 920px;
    margin: 0 auto;
    padding: 64px 24px 32px;
}

.muted { color: var(--fg-muted); }
.small { font-size: 0.875rem; }

.hero {
    text-align: center;
    padding: 24px 0 48px;
}
.hero .logo {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 16px;
    filter: drop-shadow(0 4px 16px rgba(0,0,0,0.6));
}
.hero h1 {
    margin: 0 0 8px;
    font-size: 2.5rem;
    letter-spacing: -0.02em;
}
.hero .tagline {
    margin: 0 0 32px;
    color: var(--fg-muted);
    font-size: 1.125rem;
}

.btn {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    transition: transform 0.08s ease, background 0.15s ease;
}
.btn.primary {
    background: var(--accent);
    color: #fff;
}
.btn.primary:hover {
    background: var(--accent-hover);
    color: #fff;
    text-decoration: none;
    transform: translateY(-1px);
}
.btn .btn-label { font-size: 1rem; }
.btn .btn-sub { font-size: 0.75rem; opacity: 0.8; font-weight: 400; }

.downloads { margin-top: 48px; }
.downloads h2,
.info h2 {
    font-size: 1.25rem;
    letter-spacing: -0.01em;
    margin: 0 0 16px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}
.card {
    display: block;
    padding: 16px 18px;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--fg);
    transition: border-color 0.15s ease, transform 0.08s ease;
}
.card:hover {
    border-color: var(--accent);
    color: var(--fg);
    text-decoration: none;
    transform: translateY(-1px);
}
.card.detected {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent) inset;
}
.card.disabled {
    opacity: 0.45;
    cursor: not-allowed;
    filter: grayscale(1);
}
.card.disabled:hover {
    border-color: var(--border);
    transform: none;
}
.card h3 {
    margin: 0 0 4px;
    font-size: 1rem;
}
.card p { margin: 0; font-size: 0.875rem; }

.info {
    margin-top: 48px;
    padding: 20px 24px;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.info p { margin: 0 0 12px; }
.info p:last-child { margin: 0; }

footer {
    max-width: 920px;
    margin: 0 auto;
    padding: 32px 24px 48px;
    text-align: center;
    border-top: 1px solid var(--border);
    margin-top: 64px;
}