/* Course Page Styles */
.course-hero {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    border-bottom: 1px solid #333;
}

.course-breadcrumb {
    color: #999;
    font-size: 14px;
    margin-bottom: 24px;
}

.course-breadcrumb a {
    color: #d4af37;
    text-decoration: none;
    transition: color 0.3s ease;
}

.course-breadcrumb a:hover {
    color: #f4d03f;
}

.course-title {
    font-size: 48px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.course-subtitle {
    font-size: 20px;
    color: #cccccc;
}

.course-content {
    padding: 80px 0;
    background: #0a0a0a;
}

.course-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 48px;
}

.course-main {
    min-width: 0;
}

.course-section {
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.5) 0%, rgba(0, 0, 0, 0.5) 100%);
    border: 1px solid #333;
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 32px;
    backdrop-filter: blur(10px);
}

.course-section h2 {
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.course-section h3 {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.course-section p {
    color: #cccccc;
    line-height: 1.8;
    margin-bottom: 16px;
}

.learning-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.learning-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid #2a2a2a;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.learning-item:hover {
    border-color: rgba(212, 175, 55, 0.3);
    background: rgba(212, 175, 55, 0.05);
}

.check-icon {
    color: #d4af37;
    flex-shrink: 0;
    margin-top: 2px;
}

.learning-item span {
    color: #cccccc;
    font-size: 14px;
    line-height: 1.6;
}

.module-card {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid #2a2a2a;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.module-card h4 {
    font-size: 20px;
    font-weight: 600;
    color: #d4af37;
    margin-bottom: 16px;
}

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

.module-card ul li {
    color: #cccccc;
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    font-size: 14px;
}

.module-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: #d4af37;
    border-radius: 50%;
}

.course-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-card {
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.5) 0%, rgba(0, 0, 0, 0.5) 100%);
    border: 1px solid #333;
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.sidebar-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 24px;
}

.detail-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.detail-item svg {
    color: #d4af37;
    flex-shrink: 0;
    margin-top: 4px;
}

.detail-item strong {
    display: block;
    color: #fff;
    font-size: 14px;
    margin-bottom: 4px;
}

.detail-item p {
    color: #999;
    font-size: 13px;
}

.sidebar-card .btn {
    margin-bottom: 12px;
}

.related-courses {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.related-courses a {
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid #2a2a2a;
    border-radius: 8px;
    color: #cccccc;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.related-courses a:hover {
    border-color: rgba(212, 175, 55, 0.5);
    background: rgba(212, 175, 55, 0.1);
    color: #d4af37;
}

/* Responsive */
@media (max-width: 968px) {
    .course-grid {
        grid-template-columns: 1fr;
    }
    
    .course-sidebar {
        position: static;
    }
    
    .course-title {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .course-title {
        font-size: 28px;
    }
    
    .course-subtitle {
        font-size: 16px;
    }
    
    .learning-grid {
        grid-template-columns: 1fr;
    }
    
    .course-section,
    .sidebar-card {
        padding: 24px;
    }
}