:root {
    --primary: #2c3e50;
    --secondary: #3498db;
    --accent: #e74c3c;
    --light: #ecf0f1;
    --dark: #2c3e50;
    --success: #27ae60;
    --text: #333;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: #f9f9f9;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
}

.logo span {
    color: var(--secondary);
}

.advertorial-label {
    background-color: var(--light);
    color: var(--dark);
    padding: 3px 8px;
    font-size: 12px;
    border-radius: 4px;
}

.hero {
    background-image: url('images/hero.jpg');
    background-size: cover;
    background-position: center;
    height: 500px;
    margin-top: 60px;
    display: flex;
    align-items: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
}

.hero-content {
    position: relative;
    color: white;
    max-width: 600px;
    padding: 40px;
}

.hero h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 18px;
    margin-bottom: 30px;
}

main {
    padding: 60px 0;
}

.card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    padding: 40px;
    margin-bottom: 40px;
}

.section-title {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 30px;
    color: var(--primary);
}

.quiz-container {
    margin-bottom: 30px;
}

.quiz-question {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 20px;
    text-align: center;
}

.quiz-options {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    border: none;
    font-size: 16px;
}

.btn-primary {
    background-color: var(--secondary);
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-outline {
    background-color: transparent;
    color: var(--secondary);
    border: 2px solid var(--secondary);
}

.btn-outline:hover {
    background-color: var(--secondary);
    color: white;
}

.highlight-box {
    background-color: #f1f9fe;
    border-left: 4px solid var(--secondary);
    padding: 20px;
    margin: 30px 0;
    font-size: 18px;
    font-weight: 500;
}

.requirements {
    margin: 30px 0;
}

.requirements ul {
    list-style-type: none;
}

.requirements li {
    margin-bottom: 10px;
    padding-left: 30px;
    position: relative;
    font-size: 18px;
}

.requirements li::before {
    content: '✓';
    color: var(--success);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.steps {
    margin: 40px 0;
}

.steps h2 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 20px;
}

.steps ol {
    padding-left: 20px;
}

.steps li {
    margin-bottom: 15px;
    font-size: 18px;
}

.age-selection {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    margin: 30px 0;
}

.age-btn {
    padding: 12px 20px;
    border: 2px solid var(--secondary);
    border-radius: 6px;
    font-weight: 600;
    color: var(--secondary);
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.age-btn:hover, .age-btn.active {
    background-color: var(--secondary);
    color: white;
}

.cta-button {
    display: block;
    width: 100%;
    max-width: 400px;
    margin: 40px auto;
    padding: 15px;
    font-size: 20px;
    font-weight: 600;
    text-align: center;
    background-color: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.author {
    display: flex;
    align-items: center;
    margin: 30px 0;
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: 8px;
}

.author-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #ddd;
    margin-right: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #888;
}

.author-info {
    flex: 1;
}

.author-name {
    font-weight: 600;
    margin-bottom: 5px;
}

.author-bio {
    font-size: 14px;
    color: #666;
}

footer {
    background-color: var(--dark);
    color: white;
    padding: 60px 0 20px;
}

.disclaimer {
    font-size: 12px;
    color: #ccc;
    margin-bottom: 30px;
    line-height: 1.5;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    font-size: 12px;
}

@media (max-width: 768px) {
    .hero {
        height: 400px;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .quiz-question {
        font-size: 20px;
    }
    
    .quiz-options {
        flex-direction: column;
        gap: 10px;
    }
    
    .author {
        flex-direction: column;
        text-align: center;
    }
    
    .author-image {
        margin: 0 auto 15px;
    }
}