/* Modern Courses Page Styles */

/* Hero Section */
.courses-hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.courses-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.courses-hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.courses-hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.courses-hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Courses Section */
.courses-section {
    padding: 4rem 0;
    background: #f8fafc;
}

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

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* Course Cards */
.course-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.course-card.featured {
    border: 2px solid #4f46e5;
    background: linear-gradient(135deg, #ffffff, #f8fafc);
}

/* Course Header */
.course-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.course-badge {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.course-level {
    background: #e5e7eb;
    color: #374151;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Course Content */
.course-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-align: center;
}

.course-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.course-subtitle {
    font-size: 1.1rem;
    color: #6b7280;
    margin-bottom: 1rem;
    font-style: italic;
}

.course-description {
    color: #4b5563;
    line-height: 1.6;
    margin-bottom: 2rem;
    text-align: justify;
}

/* Course Features */
.course-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: #f1f5f9;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.feature:hover {
    background: #e2e8f0;
    transform: translateX(4px);
}

.feature-icon {
    font-size: 1.2rem;
}

.feature span:last-child {
    font-size: 0.9rem;
    font-weight: 500;
    color: #374151;
}

/* Course Topics */
.course-topics {
    margin-bottom: 2rem;
}

.course-topics h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

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

.course-topics li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: #4b5563;
    border-bottom: 1px solid #f3f4f6;
}

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

.course-topics li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

/* Course Technologies */
.course-technologies {
    margin-bottom: 2rem;
}

.course-technologies h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background: #ddd6fe;
    color: #5b21b6;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Course Actions */
.course-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.btn-primary {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: white;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.3);
}

.btn-secondary {
    background: white;
    color: #4f46e5;
    padding: 0.75rem 2rem;
    border: 2px solid #4f46e5;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-secondary:hover {
    background: #4f46e5;
    color: white;
    transform: translateY(-2px);
}

/* Course Stats */
.course-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
    margin-top: 1rem;
    border: 1px solid #e5e7eb;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: #4f46e5;
    display: block;
}

.stat-label {
    font-size: 0.8rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .courses-hero h1 {
        font-size: 2rem;
    }
    
    .courses-hero p {
        font-size: 1rem;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .course-card {
        padding: 1.5rem;
    }
    
    .course-features {
        grid-template-columns: 1fr;
    }
    
    .course-actions {
        flex-direction: column;
    }
    
    .course-stats {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Animation */
.course-card {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading States */
.course-card.loading {
    opacity: 0.7;
    pointer-events: none;
}

.course-card.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #4f46e5;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}