body {
    margin: 0;
    font-family: system-ui, -apple-system, sans-serif;
    background: #0f172a;
    color: #e2e8f0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header {
    width: 100%;
    padding: 20px 40px;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: bold;
    font-size: 20px;
    color: #38bdf8;
}

.hero {
    text-align: center;
    margin-top: 100px;
    max-width: 600px;
}

.hero h1 {
    font-size: 42px;
    margin-bottom: 20px;
}

.hero p {
    color: #94a3b8;
    font-size: 18px;
    margin-bottom: 30px;
}

.btn {
    background: #38bdf8;
    color: #0f172a;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: 0.2s;
}

.btn:hover {
    background: #0ea5e9;
}

footer {
    margin-top: 120px;
    padding: 20px;
    color: #64748b;
    font-size: 14px;
}