body {
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    background: linear-gradient(135deg, #020617, #0f172a);
    color: white;
}

header {
    text-align: center;
    padding: 80px 20px;
}

h1 {
    font-size: 42px;
    margin-bottom: 10px;
}

.tagline {
    font-size: 18px;
    color: #94a3b8;
}

.btn {
    background: #22c55e;
    padding: 14px 28px;
    border-radius: 8px;
    color: black;
    text-decoration: none;
    font-weight: bold;
    margin: 10px;
    display: inline-block;
    transition: 0.3s;
}

.btn:hover {
    background: #16a34a;
}

.section {
    padding: 60px 20px;
    text-align: center;
}

.card {
    background: #1e293b;
    padding: 25px;
    margin: 15px auto;
    max-width: 600px;
    border-radius: 12px;
}

input {
    padding: 12px;
    margin: 10px;
    width: 260px;
    border-radius: 6px;
    border: none;
}

.question-box {
    background: #1e293b;
    padding: 25px;
    border-radius: 12px;
    margin: 20px auto;
    max-width: 700px;
}

.option {
    display: block;
    margin: 10px;
    padding: 10px;
    background: #334155;
    border-radius: 8px;
    cursor: pointer;
}

.option:hover {
    background: #475569;
}