:root {
    --bg: #0d1117;
    --fg: #e6edf3;
    --muted: #8b949e;
    --accent: #58a6ff;
    --border: #30363d;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background: var(--bg);
    color: var(--fg);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

main {
    max-width: 720px;
    width: 100%;
    padding: 32px;
    text-align: center;
}

p {
    color: var(--muted);
    margin-bottom: 24px;
}

.lang {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-top: 32px;
}

.lang a {
    display: block;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    text-decoration: none;
    color: var(--fg);
    transition: background .15s, border-color .15s;
}

.lang a:hover {
    background: #161b22;
    border-color: var(--accent);
}

.lang span {
    display: block;
    font-size: 0.9rem;
    color: var(--muted);
    margin-top: 4px;
}

footer {
    margin-top: 40px;
    font-size: 0.85rem;
    color: var(--muted);
}

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

.logo {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.logo img {
    max-width: 360px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 0 14px rgba(88,166,255,0.25));
}