:root {
    color-scheme: light dark;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: #0f172a;
    color: #e2e8f0;
}

body {
    margin: 0;
    padding: 0;
    background: radial-gradient(circle at top, rgba(30, 64, 175, 0.35), transparent 60%), #0f172a;
    min-height: 100vh;
}

main {
    max-width: 960px;
    margin: 0 auto;
    padding: 3rem 1.5rem 4rem;
    line-height: 1.6;
}

header {
    margin-bottom: 2rem;
    text-align: center;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

h2 {
    margin-top: 2rem;
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

p, li {
    font-size: 1rem;
    color: #cbd5f5;
}

ul {
    padding-left: 1.25rem;
}

a {
    color: #60a5fa;
}

a:hover,
a:focus {
    color: #93c5fd;
}

section {
    background: rgba(15, 23, 42, 0.65);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(12px);
}

section + section {
    margin-top: 1.5rem;
}

@media (max-width: 640px) {
    main {
        padding: 2rem 1rem 3rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.25rem;
    }
}