/* Courses Page - Stili specifici per la pagina corsi */

/* Hero Section Corsi */
/* Hero section - Solo per pagine corsi, non per home */
.hero:not(.home-hero) {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
    padding: 5.5rem 2rem 3rem;
    margin-bottom: 0;
    margin-top: 0;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.hero:not(.home-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="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.4;
    z-index: -1;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

/* Course Controls */
.course-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.toggle-all-btn,
.progress-btn {
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.toggle-all-btn:hover,
.progress-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.toggle-all-btn i,
.progress-btn i {
    margin-right: 0.5rem;
}

/* Breadcrumb */
.breadcrumb {
    margin-bottom: 2rem;
    font-size: 0.875rem;
    opacity: 0.8;
}

.breadcrumb a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb a:hover {
    opacity: 0.8;
}

.breadcrumb-separator {
    margin: 0 0.5rem;
}

.breadcrumb-current {
    opacity: 0.6;
}

/* Page Title */
.page-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.page-title i {
    margin-right: 1rem;
    opacity: 0.9;
}

.page-description {
    font-size: 1.25rem;
    line-height: 1.7;
    max-width: 800px;
    margin: 0 auto 3rem;
    opacity: 0.9;
}

/* Course Navigation Pills */
.course-navigation {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.nav-pill {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
    font-weight: 600;
}

.nav-pill:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Course Section */
.course-section {
    padding: 4rem 0;
    position: relative;
}

.course-section:first-of-type {
    padding-top: 3rem;
}

.course-section:nth-child(even) {
    background: var(--gray-50);
}

/* Course Header */
.course-header {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 2rem;
    align-items: center;
    margin-bottom: 2rem;
    padding: 2rem;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
}

.course-badge .level-badge {
    font-size: 1.125rem;
    padding: 0.75rem 1.5rem;
    min-width: auto;
}

.course-info h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.course-info p {
    color: var(--gray-600);
    font-size: 1.125rem;
}

.course-stats {
    display: flex;
    gap: 2rem;
    text-align: center;
}

.course-stats .stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.course-stats .stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}

.course-stats .stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
}

/* Module Cards */
.module-card {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: var(--transition);
}

.module-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.module-card.featured {
    border-left: 5px solid var(--primary-color);
    position: relative;
}

.module-card.featured::before {
    content: 'Highlight';
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 1;
}

/* Module Header */
.module-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem 2rem;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    cursor: pointer;
    transition: var(--transition);
}

.module-header:hover {
    background: var(--gray-100);
}

.module-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.module-icon i {
    font-size: 1.5rem;
    color: white;
}

.module-info {
    flex: 1;
}

.module-info h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.module-info p {
    color: var(--gray-600);
    margin: 0;
}

.module-toggle {
    background: none;
    border: none;
    color: var(--gray-500);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition);
}

.module-toggle:hover {
    color: var(--primary-color);
}

.module-toggle.active {
    transform: rotate(180deg);
}

/* Module Content */
.module-content {
    padding: 2rem;
    display: none;
}

.module-content.active {
    display: block;
    animation: fadeInUp 0.3s ease-out;
}

/* Lessons Grid */
.lessons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* Lesson Cards */
.lesson-card {
    background: var(--gray-50);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    position: relative;
}

.lesson-card:hover {
    background: white;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.lesson-number {
    position: absolute;
    top: -10px;
    left: 1.5rem;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    font-weight: 700;
    font-size: 0.875rem;
}

.lesson-content {
    margin-top: 1rem;
}

.lesson-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.lesson-content p {
    color: var(--gray-600);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

/* Lesson Meta */
.lesson-meta {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.lesson-duration,
.lesson-difficulty {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--gray-500);
}

.lesson-difficulty.easy {
    color: var(--success-color);
}

.lesson-difficulty.medium {
    color: var(--warning-color);
}

.lesson-difficulty.hard {
    color: var(--error-color);
}

/* Lesson Links */
.lesson-links {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Practical Projects Section */
.practical-projects {
    padding: 5rem 0;
    background: var(--gray-900);
    color: white;
}

.practical-projects .section-title {
    color: white;
}

.practical-projects .section-subtitle {
    color: var(--gray-300);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

/* Project Cards per la sezione practical */
.practical-projects .project-card {
    background: var(--gray-800);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    transition: var(--transition);
    border: 1px solid var(--gray-700);
    position: relative;
}

.practical-projects .project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.practical-projects .project-card.featured {
    border: 2px solid var(--primary-color);
    background: linear-gradient(135deg, var(--gray-800) 0%, rgba(59, 130, 246, 0.1) 100%);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.project-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Project Images */
.project-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.practical-projects .project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-icon i {
    font-size: 1.5rem;
    color: white;
}

.project-badge {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.project-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.project-content p {
    color: var(--gray-300);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

/* Tech Stack */
.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    background: var(--gray-700);
    color: var(--gray-300);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid var(--gray-600);
}

/* Project Features */
.project-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-300);
    font-size: 0.875rem;
}

.feature i {
    color: var(--primary-color);
}

/* Project Links */
.project-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.cta-content p {
    font-size: 1.25rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .course-header {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }
    
    .course-stats {
        justify-content: center;
    }
    
    .lessons-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }
    
    .page-description {
        font-size: 1.125rem;
    }
    
    .course-navigation {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-pill {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .module-header {
        padding: 1rem 1.5rem;
        flex-wrap: wrap;
    }
    
    .module-content {
        padding: 1.5rem;
    }
    
    .lesson-card {
        padding: 1rem;
    }
    
    .lesson-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .project-features {
        grid-template-columns: 1fr;
    }
    
    .project-links {
        flex-direction: column;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-lg {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .courses-hero {
        padding: 4.5rem 0 3rem;
    }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    .page-title i {
        display: block;
        margin-bottom: 0.5rem;
    }
    
    .course-section {
        padding: 3rem 0;
    }
    
    .module-header {
        padding: 1rem;
    }
    
    .module-content {
        padding: 1rem;
    }
    
    .lesson-number {
        position: static;
        display: inline-block;
        margin-bottom: 1rem;
    }
    
    .lesson-content {
        margin-top: 0;
    }
}

/* Animazioni aggiuntive */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.module-content.active {
    animation: slideDown 0.3s ease-out;
}

/* Print styles */
@media print {
    .courses-hero,
    .cta-section,
    .header,
    .footer,
    .back-to-top {
        display: none;
    }
    
    .course-section {
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    .module-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* Reference Section Styles */
.reference-section {
    background: var(--gray-50);
    padding: 4rem 0;
}

.reference-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.reference-card {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.reference-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.reference-header {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 1.5rem;
    text-align: center;
}

.reference-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.reference-header i {
    margin-right: 0.5rem;
}

.reference-content {
    padding: 1.5rem;
}

.command-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--gray-50);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    margin-bottom: 0.75rem;
}

.command-item code {
    background: var(--gray-800);
    color: var(--accent-color);
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
    margin-right: 1rem;
}

.command-item span {
    color: var(--gray-600);
    font-size: 0.875rem;
    text-align: right;
    flex-grow: 1;
}