body {
    margin: 0;
    font-family: Arial, sans-serif;
    color: #222;
}

.header {
    display: flex;
    justify-content: space-between;
    padding: 16px 32px;
    background: #0f172a;
    color: white;
}

.header a {
    color: white;
    margin-left: 16px;
    text-decoration: none;
}

.logo {
    font-weight: bold;
    font-size: 20px;
}

.hero {
    padding: 80px 32px;
    background: linear-gradient(135deg, #2563eb, #1e40af);
    color: white;
}

.section {
    padding: 48px 32px;
}

.section.gray {
    background: #f1f5f9;
}

.btn {
    padding: 10px 18px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
}

.btn.primary {
    background: #2563eb;
    color: white;
}

form {
    max-width: 300px;
}

input {
    width: 100%;
    margin-bottom: 12px;
    padding: 8px;
}

.footer {
    padding: 16px;
    text-align: center;
    background: #0f172a;
    color: white;
}