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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #0f172a;
    color: #0f172a;
}

a {
    text-decoration: none;
}

.btn-primary {
    display: inline-block;
    background: #2563eb;
    color: #fff;
    padding: 12px 20px;
    border-radius: 999px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    text-align: center;
    width: 100%;
}

.btn-primary:hover {
    background: #1d4ed8;
}