/* Course Page Styles */
body {
    font-family: 'Segoe UI', Tahoma, sans-serif;
    margin: 0;
    background: #ffffff;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
header {
    background: #ffffff;
    padding: 1rem 0;
    border-bottom: 1px solid #e5e7eb;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

.logo {
    font-size: 1.2rem;
    font-weight: bold;
    color: #1a365d;
}

.back-link {
    color: #1a365d;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border: 1px solid #1a365d;
    border-radius: 6px;
    transition: all 0.3s;
}

.back-link:hover {
    background: #1a365d;
    color: white;
}

/* Hero Course Section */
.hero-course {
    background: linear-gradient(180deg, #ffffff 0%, #e8f4fd 30%, #b8d4f0 70%, #4a90e2 100%);
    padding: 4rem 0;
    text-align: center;
    color: #1a365d;
}

.hero-logo {
    width: 320px;
    height: auto;
    margin-bottom: 2rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(26,54,93,0.15);
}

.hero-course h1 {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: #1a365d;
}

.hero-course p {
    font-size: 1.2rem;
    margin-bottom: 0;
    color: #2d3748;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Content Sections */
.content-section {
    padding: 3rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 600;
    color: #1a365d;
    margin-bottom: 2.5rem;
    letter-spacing: 0.5px;
}

/* Course Grid */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.course-card {
    background: #f7fafc;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(26,54,93,0.1);
    border: 1px solid #e8f4fd;
    transition: transform 0.3s, box-shadow 0.3s;
}

.course-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(26,54,93,0.15);
}

.course-card h3 {
    color: #1a365d;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: 0.3px;
}

.course-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.course-card li {
    padding: 0.5rem 0;
    color: #555;
    border-bottom: 1px solid #e8f4fd;
}

.course-card li:last-child {
    border-bottom: none;
}

/* Levels Section */
.levels-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.level-box {
    background: linear-gradient(135deg, #4a90e2, #1a365d);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(26,54,93,0.2);
    transition: transform 0.3s, box-shadow 0.3s;
}

.level-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(26,54,93,0.3);
}

.level-box h4 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.level-box p {
    margin: 0.8rem 0;
    color: white;
    opacity: 0.95;
}

.level-box ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.level-box li {
    padding: 0.3rem 0;
    color: white;
    opacity: 0.9;
}

/* Price Box */
.price-box {
    background: linear-gradient(135deg, #1a365d, #2c5282);
    color: white;
    padding: 3rem;
    border-radius: 15px;
    text-align: center;
    margin: 3rem 0;
    box-shadow: 0 8px 25px rgba(26,54,93,0.2);
}

.price-box h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: white;
}

.price {
    font-size: 3rem;
    font-weight: bold;
    color: white;
    margin: 1rem 0;
}

.price-details {
    font-size: 1rem;
    margin: 1.5rem 0;
    color: white;
    opacity: 0.9;
    line-height: 1.6;
}

/* CTA Button */
.cta-button {
    background: white;
    color: #1a365d;
    padding: 1rem 2rem;
    border-radius: 25px;
    font-weight: bold;
    font-size: 1.1rem;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    border: 2px solid white;
}

.cta-button:hover {
    background: #f8fafc;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255,255,255,0.3);
}

/* FAQ Section */
.faq-section {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: #f7fafc;
    margin: 1rem 0;
    border-radius: 8px;
    border: 1px solid #e8f4fd;
    overflow: hidden;
    transition: box-shadow 0.3s;
}

.faq-item:hover {
    box-shadow: 0 2px 8px rgba(26,54,93,0.1);
}

.faq-question {
    background: #1a365d;
    color: white;
    padding: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.faq-question:hover {
    background: #2c5282;
}

.faq-answer {
    padding: 1.2rem;
    color: #555;
    line-height: 1.6;
    display: none;
}

/* Footer */
footer {
    background: #1a365d;
    color: white;
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
}

footer p {
    margin: 0;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-logo {
        width: 280px;
        margin-bottom: 1.5rem;
    }
    
    .hero-course h1 {
        font-size: 2.2rem;
    }
    
    .hero-course p {
        font-size: 1rem;
    }
    
    .course-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .levels-section {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .level-box {
        padding: 1.5rem;
    }
    
    .price-box {
        padding: 2rem;
    }
    
    .price {
        font-size: 2.5rem;
    }
    
    .container {
        padding: 0 1rem;
    }
}