:root {
    --bg: #0b1220;
    --panel: #111827;
    --primary: #3b82f6;
    --text: #e5e7eb;
    --muted: #94a3b8;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.container {
    max-width: 1100px;
    margin: auto;
    padding: 40px;
}

.card {
    background: var(--panel);
    border-radius: 14px;
    padding: 24px;
    margin: 16px 0;
    border: 1px solid rgba(255,255,255,0.05);
}

h1,h2,h3 {
    margin: 0 0 10px 0;
}

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

.btn {
    display: inline-block;
    padding: 12px 18px;
    background: var(--primary);
    color: white;
    border-radius: 10px;
    text-decoration: none;
}

.btn:hover {
    background: #2563eb;
}