/* Program Cards and Poster Slider Styles */

.programs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.program-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow);
    transition: all 0.3s ease;
    border-left: 5px solid var(--primary-green);
    opacity: 0;
    transform: translateY(30px);
    animation: cardFadeIn 0.6s ease forwards;
}

.program-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.featured-card {
    border-left-color: var(--primary-red);
    background: linear-gradient(135deg, #fff9f9 0%, #ffffff 100%);
}

.card-header {
    padding: 25px;
    background: linear-gradient(135deg, var(--primary-green) 0%, #388e3c 100%);
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 15px;
}

.featured-card .card-header {
    background: linear-gradient(135deg, var(--primary-red) 0%, #d32f2f 100%);
}

.card-icon {
    /* @tweakable card icon size */
    font-size: 2rem;
    opacity: 0.9;
}

.card-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
    line-height: 1.3;
}

.card-content {
    padding: 25px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.detail-item i {
    color: var(--primary-green);
    width: 20px;
    text-align: center;
}

.description {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #eee;
    color: var(--text-light);
    font-style: italic;
}

/* Video Gallery in Program Cards */
.video-gallery {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid #eee;
}

.video-gallery h4 {
    /* @tweakable video gallery heading */
    font-size: 1.1rem;
    color: var(--primary-green);
    margin-bottom: 15px;
    font-weight: 600;
}

.video-grid {
    display: grid;
    /* @tweakable video grid layout */
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.video-item {
    position: relative;
    /* @tweakable video aspect ratio */
    aspect-ratio: 16/9;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.video-item:hover {
    transform: scale(1.02);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.video-item iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Poster Showcase Slider Styles */
.poster-showcase {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid #eee;
}

.poster-slider {
    position: relative;
    /* @tweakable poster slider border radius */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    background: #fff;
}

.poster-slider-container {
    position: relative;
    width: 100%;
    /* @tweakable poster slider aspect ratio */
    aspect-ratio: 16/10;
    overflow: hidden;
}

.poster-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    /* @tweakable poster slide transition duration */
    transition: opacity 0.8s ease-in-out;
}

.poster-slide.active {
    opacity: 1;
}

.poster-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* @tweakable poster image hover scale */
    transition: transform 0.5s ease;
}

.poster-slide:hover img {
    transform: scale(1.05);
}

/* Poster Slider Navigation */
.poster-nav {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 15px;
    z-index: 3;
    transform: translateY(-50%);
}

.poster-nav-btn {
    /* @tweakable poster navigation button styling */
    background: rgba(211, 47, 47, 0.8);
    border: none;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.poster-nav-btn:hover {
    background: rgba(211, 47, 47, 1);
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(211, 47, 47, 0.4);
}

/* Poster Slider Indicators */
.poster-indicators {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
}

.poster-indicator {
    /* @tweakable poster indicator size and styling */
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.7);
}

.poster-indicator.active,
.poster-indicator:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: scale(1.3);
}

/* Full-Width Main Poster Slider Styles */
.poster-slider-section {
    padding: 80px 0;
    background: var(--light-gray);
    /* @tweakable main poster slider section background */
    background-image: linear-gradient(135deg, rgba(46, 125, 50, 0.02) 0%, rgba(211, 47, 47, 0.02) 100%);
}

.main-poster-slider {
    position: relative;
    /* @tweakable main poster slider border radius */
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
    background: #fff;
    max-width: 1000px;
    margin: 0 auto;
}

.main-poster-slider-container {
    position: relative;
    width: 100%;
    /* @tweakable main poster slider aspect ratio */
    aspect-ratio: 16/9;
    overflow: hidden;
}

.main-poster-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    /* @tweakable main poster slide transition duration and effect */
    transition: opacity 1s ease-in-out, transform 1s ease-in-out;
    transform: scale(1.05);
}

.main-poster-slide.active {
    opacity: 1;
    transform: scale(1);
}

.main-poster-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* @tweakable main poster image hover scale effect */
    transition: transform 0.8s ease;
}

.main-poster-slide:hover img {
    transform: scale(1.03);
}

/* Slide Caption Overlay */
.slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 40px;
    /* @tweakable slide caption animation */
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.5s ease;
}

.main-poster-slide.active .slide-caption {
    transform: translateY(0);
    opacity: 1;
}

.slide-caption h3 {
    /* @tweakable slide caption heading size */
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.slide-caption p {
    /* @tweakable slide caption text size */
    font-size: 1.2rem;
    font-weight: 400;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Main Poster Slider Navigation */
.main-poster-nav {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 25px;
    z-index: 3;
    transform: translateY(-50%);
}

.main-poster-nav-btn {
    /* @tweakable main poster navigation button styling */
    background: rgba(211, 47, 47, 0.8);
    border: none;
    color: white;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.main-poster-nav-btn:hover {
    background: rgba(211, 47, 47, 1);
    transform: scale(1.15);
    box-shadow: 0 6px 20px rgba(211, 47, 47, 0.5);
}

/* Main Poster Slider Indicators */
.main-poster-indicators {
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 3;
}

.main-poster-indicator {
    /* @tweakable main poster indicator size and styling */
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 3px solid rgba(255, 255, 255, 0.8);
    position: relative;
}

.main-poster-indicator::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(211, 47, 47, 0.8);
    border-radius: 50%;
    transition: all 0.3s ease;
    transform: translate(-50%, -50%);
}

.main-poster-indicator.active::after,
.main-poster-indicator:hover::after {
    width: 8px;
    height: 8px;
}

.main-poster-indicator.active,
.main-poster-indicator:hover {
    background: rgba(255, 255, 255, 1);
    transform: scale(1.3);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Image Gallery Showcase Slider Styles */
.image-gallery-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.image-gallery-container {
    max-width: 1000px;
    margin: 0 auto;
}

.image-slider {
    position: relative;
    /* @tweakable image slider border radius */
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    background: #fff;
}

.image-slider-container {
    position: relative;
    width: 100%;
    /* @tweakable image slider aspect ratio */
    aspect-ratio: 16/9;
    overflow: hidden;
}

.image-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    /* @tweakable image slide transition duration */
    transition: opacity 1s ease-in-out;
}

.image-slide.active {
    opacity: 1;
}

.image-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* @tweakable image hover scale effect */
    transition: transform 0.6s ease;
}

.image-slide:hover img {
    transform: scale(1.05);
}

/* Image Slider Navigation */
.image-nav {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 3;
    transform: translateY(-50%);
}

.image-nav-btn {
    /* @tweakable image navigation button styling */
    background: rgba(46, 125, 50, 0.8);
    border: none;
    color: white;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.image-nav-btn:hover {
    background: rgba(46, 125, 50, 1);
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(46, 125, 50, 0.4);
}

/* Image Slider Indicators */
.image-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

.image-indicator {
    /* @tweakable image indicator size and styling */
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.image-indicator.active,
.image-indicator:hover {
    background: rgba(255, 255, 255, 1);
    transform: scale(1.3);
}

/* Quiz Reference Books Section */
.quiz-reference-books {
    margin-top: 25px;
    padding-top: 25px;
    border-top: 2px solid #eee;
}

.quiz-reference-books h4 {
    /* @tweakable reference books heading styling */
    font-size: 1.2rem;
    color: var(--primary-red);
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center;
}

.reference-books-grid {
    /* @tweakable reference books grid layout */
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 15px;
}

.reference-book {
    /* @tweakable individual book card styling */
    background: linear-gradient(135deg, #fff9f9 0%, #ffffff 100%);
    border-radius: 12px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 2px solid rgba(211, 47, 47, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.reference-book::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 3px;
    /* @tweakable book card accent color */
    background: linear-gradient(90deg, var(--primary-red), var(--primary-green));
    transition: left 0.5s ease;
}

.reference-book:hover::before {
    left: 0;
}

.reference-book:hover {
    /* @tweakable book card hover effects */
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(211, 47, 47, 0.15);
    border-color: rgba(211, 47, 47, 0.3);
}

.book-image {
    /* @tweakable book image container styling */
    margin-bottom: 15px;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.book-image img {
    /* @tweakable book image sizing and effects */
    width: 25%;
    height: auto;
    max-height: 25%;
    object-fit: cover;
    transition: transform 0.3s ease;
    border-radius: 8px;
}

.reference-book:hover .book-image img {
    /* @tweakable book image hover scale */
    transform: scale(1.05);
}

.book-details h5 {
    /* @tweakable book title styling */
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
    line-height: 1.3;
}

.book-author {
    /* @tweakable book author styling */
    font-size: 0.9rem;
    color: var(--text-light);
    font-style: italic;
    font-weight: 500;
}

/* Animation for cards on scroll */
.program-card:nth-child(1) { animation-delay: 0.1s; }
.program-card:nth-child(2) { animation-delay: 0.2s; }
.program-card:nth-child(3) { animation-delay: 0.3s; }
.program-card:nth-child(4) { animation-delay: 0.4s; }
.program-card:nth-child(5) { animation-delay: 0.5s; }
.program-card:nth-child(6) { animation-delay: 0.6s; }

@keyframes cardFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .programs-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .poster-slider-container {
        /* @tweakable mobile poster slider aspect ratio */
        aspect-ratio: 4/3;
    }
    
    .poster-nav {
        padding: 0 10px;
    }
    
    .poster-nav-btn {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    .poster-indicator {
        width: 8px;
        height: 8px;
    }
    
    .card-header h3 {
        font-size: 1.1rem;
    }
    
    .image-slider-container {
        /* @tweakable mobile image slider aspect ratio */
        aspect-ratio: 4/3;
    }
    
    .image-nav {
        padding: 0 15px;
    }
    
    .image-nav-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .image-indicator {
        width: 10px;
        height: 10px;
    }
    
    .main-poster-slider-container {
        /* @tweakable mobile main poster slider aspect ratio */
        aspect-ratio: 4/3;
    }
    
    .main-poster-nav {
        padding: 0 15px;
    }
    
    .main-poster-nav-btn {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
    
    .main-poster-indicator {
        width: 12px;
        height: 12px;
    }
    
    .main-poster-indicator::after {
        width: 6px;
        height: 6px;
    }
    
    .slide-caption {
        padding: 25px;
    }
    
    .slide-caption h3 {
        font-size: 1.5rem;
    }
    
    .slide-caption p {
        font-size: 1rem;
    }
    
    .reference-books-grid {
        /* @tweakable mobile reference books grid */
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .reference-book {
        padding: 12px;
    }
    
    .quiz-reference-books h4 {
        font-size: 1.1rem;
    }
    
    .book-details h5 {
        font-size: 0.95rem;
    }
    
    .book-author {
        font-size: 0.85rem;
    }
    
    .book-image img {
        /* @tweakable mobile book image height */
        max-height: 180px;
    }
}

@media (max-width: 480px) {
    .poster-indicators {
        bottom: 10px;
        gap: 6px;
    }
    
    .poster-showcase h4 {
        font-size: 1rem;
    }
    
    .video-gallery h4 {
        font-size: 1rem;
    }
    
    .image-indicators {
        bottom: 15px;
        gap: 8px;
    }
    
    .image-indicator {
        width: 8px;
        height: 8px;
    }
    
    .main-poster-indicators {
        bottom: 15px;
        gap: 8px;
    }
    
    .main-poster-indicator {
        width: 10px;
        height: 10px;
    }
    
    .slide-caption {
        padding: 20px;
    }
    
    .slide-caption h3 {
        font-size: 1.3rem;
    }
    
    .slide-caption p {
        font-size: 0.9rem;
    }
    
    .quiz-reference-books {
        margin-top: 20px;
        padding-top: 20px;
    }
    
    .quiz-reference-books h4 {
        font-size: 1rem;
        margin-bottom: 15px;
    }
    
    .reference-book {
        padding: 10px;
    }
    
    .book-image img {
        /* @tweakable small mobile book image height */
        max-height: 160px;
    }
}