body {
    background-color: #0f172a;
    color: #e5e7eb;
    line-height: 1.5;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}



.hero {
    background: linear-gradient(135deg, #1e293b, #020617);
    text-align: center;
    padding: 80px 20px;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 15px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #cbd5f5;
}

.start-btn {
    background-color: #38bdf8;
    color: #020617;
    padding: 15px 30px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 6px;
    transition: background 0.3s;
}

.start-btn:hover {
    background-color: #0ea5e9;
}

.content {
    max-width: 1000px;
    margin: 50px auto;
    padding: 0 20px;
}

.info {
    text-align: center;
    margin-bottom: 50px;
}

.info h2 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.card {
    background-color: #020617;
    padding: 25px;
    
.quiz-container {
    max-width: 600px;
    margin: 40px auto;
    padding: 20px;
    background-color: #020617;
    border-radius: 12px;
}

.options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 20px 0;
}

.option-btn {
    padding: 15px;
    font-size: 1rem;
    border-radius: 8px;
    border: none;
    background-color: #1e293b;
    color: #e5e7eb;
}

.option-btn:hover {
    background-color: #334155;
}

#next-btn {
    width: 100%;
    padding: 15px;
    margin-top: 15px;
    font-weight: bold;
    border-radius: 8px;
}

/* Mobile Optimization */
@media (max-width: 600px) {
    .quiz-container {
        margin: 20px;
        padding: 15px;
    }

    h3 {
        font-size: 1.1rem;
    }
}
    border-radius: 10px;
    border: 1px solid #1e293b;
    text-align: center;
}

.card h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
}

footer {
    text-align: center;
    padding: 20px;
    margin-top: 60px;
    font-size: 0.9rem;
    color: #94a3b8;
}