:root {
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --accent-color: #38bdf8;
    --card-bg: #1e293b;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    max-width: 650px;
    width: 90%;
    padding: 2rem;
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

h1 {
    margin: 0;
    font-size: 2rem;
    color: var(--accent-color);
}

.subtitle {
    color: #94a3b8;
    margin-top: 0.25rem;
}

section {
    margin-top: 1.5rem;
}

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

a:hover {
    text-decoration: underline;
}

ul {
    padding-left: 1.2rem;
}