body {
    font-family: system-ui, sans-serif;
    background: #0f172a;
    color: #e5e7eb;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: 40px auto;
    padding: 20px;
}

.card {
    background: #1e293b;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

h1, h2 {
    margin-top: 0;
}

input, button {
    width: 100%;
    padding: 10px;
    margin-top: 12px;
    border-radius: 6px;
    border: none;
}

button {
    background: #38bdf8;
    color: #0f172a;
    font-weight: bold;
    cursor: pointer;
}

.navbar {
    background: #1e293b;
    padding: 12px 20px;
    display: flex;
    gap: 20px;
}

.navbar a {
    color: #e5e7eb;
    text-decoration: none;
    font-weight: 500;
}

.navbar a:hover {
    color: #38bdf8;
}