/* Frontend Styles for Thinkraft SkillHub */

:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f1c40f;
    --light-bg: #f8f9fa;
    --dark-bg: #343a40;
}

/* General Styles */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    overflow-x: hidden;
}

/* Header Styles */
.header {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    background: white;
}

.navbar-brand img {
    transition: transform 0.3s ease;
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

/* Hero Slider */
.hero-slider {
    width: 100%;
    position: relative;
}
.hero-slide {
    min-height: 650px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    display: flex;
    align-items: center;
}

.hero-slide .container {
    position: relative;
    z-index: 2;
}

.hero-slide .overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-content {
    max-width: 700px;
}

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

.hero-description {
    font-size: 1.2rem;
    margin-top: 15px;
    opacity: 0.9;
}



.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}


.hero-buttons .btn {
    padding: 12px 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.hero-buttons .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

/* Statistics Section */
.statistics {
    position: relative;
    overflow: hidden;
}

.statistics::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 0;
    width: 100%;
    height: 100px;
    background: linear-gradient(to bottom right, transparent 49%, white 50%);
}

.stat-item {
    padding: 20px;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-10px);
}

.stat-item i {
    filter: drop-shadow(0 5px 10px rgba(0,0,0,0.2));
}

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

/* Course Cards */
.course-card {
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    background: white;
    height: 100%;
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15) !important;
}

.course-image {
    height: 200px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.course-card:hover .course-image img {
    transform: scale(1.1);
}

.course-image .badge {
    z-index: 10;
    padding: 8px 12px;
    font-weight: 600;
}

/* Category Cards */
.category-card {
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 25px rgba(52,152,219,0.2) !important;
}

.category-card i {
    transition: transform 0.3s ease;
}

.category-card:hover i {
    transform: scale(1.1);
}

/* Testimonials */
.testimonial-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.testimonial-image img {
    border: 5px solid var(--primary-color);
    object-fit: cover;
}

.testimonial-content .lead {
    font-style: italic;
    color: #555;
    line-height: 1.8;
}

/* Events */
.event-card {
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.event-card:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1) !important;
}

.event-date {
    box-shadow: 0 5px 15px rgba(52,152,219,0.3);
}

/* Newsletter */
.newsletter {
    position: relative;
    overflow: hidden;
}

.newsletter::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100px;
    width: 200px;
    height: 200px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
}

.newsletter::after {
    content: '';
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
}

.newsletter-form {
    position: relative;
    z-index: 10;
}

.newsletter-form .form-control {
    border: none;
    padding: 15px 20px;
}

.newsletter-form .btn {
    padding: 15px 30px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.newsletter-form .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* Footer */
.footer {
    position: relative;
}

.footer-widget a {
    transition: all 0.3s ease;
}

.footer-widget a:hover {
    color: white !important;
    padding-left: 5px;
}

.social-links a {
    display: inline-block;
    width: 35px;
    height: 35px;
    line-height: 35px;
    text-align: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

/* Back to Top */
#backToTop {
    opacity: 0.9;
    transition: all 0.3s ease;
    z-index: 999;
}

#backToTop:hover {
    opacity: 1;
    transform: scale(1.1);
}

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

.fadeInUp {
    animation: fadeInUp 1s ease forwards;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-slide {
        height: 60vh;
        min-height: 400px;
    }
    
    .stat-item h3 {
        font-size: 2rem;
    }
    
    .navbar-nav {
        padding: 20px 0;
    }
    
    .navbar-nav .btn {
        margin: 10px 0 0 0 !important;
        width: 100%;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 10px 0 !important;
    }
    
    .event-date {
        min-width: 60px;
    }
}

/* Loading Spinner */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.9);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 80px 0;
    margin-bottom: 50px;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
}

.page-header::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 200px;
    height: 200px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    position: relative;
    z-index: 10;
}

.breadcrumb {
    background: transparent;
    padding: 0;
    margin: 0;
    position: relative;
    z-index: 10;
}

.breadcrumb-item a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb-item a:hover {
    color: white;
}

.breadcrumb-item.active {
    color: white;
}

/* Course Details Page */
.course-details-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 60px 0;
}

.course-details-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.course-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 20px;
}

.course-meta-item {
    display: flex;
    align-items: center;
}

.course-meta-item i {
    margin-right: 8px;
    font-size: 1.2rem;
}

.course-price {
    font-size: 2rem;
    font-weight: 700;
    color: white;
}

.course-price small {
    font-size: 1rem;
    opacity: 0.8;
}

.course-curriculum .accordion-item {
    border: none;
    margin-bottom: 10px;
    border-radius: 10px !important;
    overflow: hidden;
}

.course-curriculum .accordion-button {
    background: var(--light-bg);
    font-weight: 600;
    padding: 15px 20px;
}

.course-curriculum .accordion-button:not(.collapsed) {
    background: var(--primary-color);
    color: white;
}

.lesson-item {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    border-bottom: 1px solid #eee;
}

.lesson-item:last-child {
    border-bottom: none;
}

.lesson-item i {
    margin-right: 15px;
    color: var(--primary-color);
}

.lesson-item .duration {
    margin-left: auto;
    color: #999;
    font-size: 0.9rem;
}

.instructor-profile {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
}

.instructor-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 20px;
    border: 3px solid var(--primary-color);
}

.instructor-info h3 {
    margin-bottom: 5px;
}

.instructor-info p {
    color: #666;
    margin-bottom: 10px;
}

.instructor-stats {
    display: flex;
    gap: 20px;
}

.instructor-stat {
    text-align: center;
}

.instructor-stat .value {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.instructor-stat .label {
    font-size: 0.9rem;
    color: #999;
}

/* Gallery Page */
.gallery-filters {
    margin-bottom: 30px;
    padding: 20px;
    background: var(--light-bg);
    border-radius: 10px;
}

.gallery-filters .btn {
    margin: 5px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    margin-bottom: 30px;
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: -100%;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: white;
    transition: bottom 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    bottom: 0;
}

.gallery-overlay h5 {
    margin-bottom: 5px;
}

.gallery-overlay p {
    margin-bottom: 0;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Video Gallery */
.video-card {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 30px;
}

.video-thumbnail {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.video-card:hover .play-button {
    transform: translate(-50%, -50%) scale(1.1);
    background: var(--primary-color);
    color: white;
}

.video-info {
    padding: 15px;
    background: white;
}

.video-info h5 {
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.video-info .duration {
    color: #999;
    font-size: 0.9rem;
}

/* Contact Page */
.contact-info-card {
    background: var(--light-bg);
    border-radius: 15px;
    padding: 30px;
    height: 100%;
    transition: all 0.3s ease;
}

.contact-info-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.contact-info-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.contact-info-card h4 {
    margin-bottom: 15px;
    font-weight: 600;
}

.contact-info-card p {
    margin-bottom: 5px;
    color: #666;
}

.contact-info-card a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-info-card a:hover {
    color: var(--primary-color);
}

.contact-form {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.map-container {
    height: 400px;
    border-radius: 15px;
    overflow: hidden;
    margin-top: 50px;
}

/* FAQ Page */
.faq-section {
    background: white;
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
}

.faq-section h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.faq-item {
    border-bottom: 1px solid #eee;
    padding: 20px 0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    cursor: pointer;
    padding-right: 30px;
    position: relative;
    font-weight: 600;
    margin-bottom: 10px;
}

.faq-question::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 0;
    top: 0;
    transition: transform 0.3s ease;
}

.faq-question[aria-expanded="true"]::after {
    transform: rotate(180deg);
}

.faq-answer {
    color: #666;
    line-height: 1.8;
    padding-right: 30px;
}