:root {
    color-scheme: dark;
    --bg: #0f1115;
    --panel: rgba(255, 255, 255, 0.06);
    --text: #f3f4f6;
    --muted: #b9bec7;
    --accent: #d0ced0;
    --border: rgba(255, 255, 255, 0.12);
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100%;
    font-family: Arial, Helvetica, sans-serif;
    background:
        radial-gradient(circle at top, rgba(255,255,255,0.08), transparent 35%),
        linear-gradient(135deg, #0b0d12, #161a22);
    color: var(--text);
}

body {
    display: grid;
    place-items: center;
    padding: 24px;
}

.container {
    width: min(720px, 100%);
    padding: 32px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--panel);
    backdrop-filter: blur(10px);
}

h1 {
    margin-top: 0;
}

p, li {
    color: var(--muted);
}

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

a:hover {
    text-decoration: underline;
}