body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f9f9fb;
    color: #1a1a1a;
    margin: 0;
    padding: 0;
}
header {
    background: #ffffff;
    padding: 20px 40px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
header h1 {
    font-weight: 700;
    font-size: 28px;
    margin: 0;
    color: #0f0f0f;
}

h2 {
    font-weight: 600;
    font-size: 24px;
    margin-bottom: 20px;
}
p {
    font-weight: 400;
    font-size: 16px;
    line-height: 1.6;
    color: #444;
}
.btn-primary {
    background-color: #4F46E5;
    color: #fff;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.2s ease;
}
.btn-primary:hover {
    background-color: #4338ca;
}
.card {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}