/* =========================================
   Char Dham Yatra Page Styles
   ========================================= */

/* --- 1. Hero Slider --- */
.chardham-hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    background-size: cover;
    background-position: center;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(10, 5, 16, 0.4), var(--color-bg-dark));
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 3;
    width: 90%;
    max-width: 800px;
    opacity: 0;
    transition: all 0.5s ease 0.5s;
}

.slide.active .slide-content {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.slide-title {
    font-size: 4rem;
    margin-bottom: 20px;
    text-shadow: 0 0 20px var(--color-accent-glow);
}

.slider-nav {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 15px;
}

.slider-dot {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--color-primary-start);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.slider-dot.active {
    background: var(--color-primary-end);
    box-shadow: 0 0 10px var(--color-accent-glow);
}

/* --- 2. Interactive 3D Flip Cards --- */
.dhams-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    padding: 40px 0;
}

.flip-card {
    background-color: transparent;
    width: 100%;
    height: 400px;
    perspective: 1000px; /* 3D perspective */
    position: relative;
    z-index: 1;
    transition: z-index 0.8s;
}

.flip-card:hover {
    z-index: 10;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s;
    transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden; /* Safari */
    backface-visibility: hidden;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.flip-card-front {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    background-size: cover;
    background-position: center;
}

.flip-card-front::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; width: 100%; height: 60%;
    background: linear-gradient(to top, rgba(10, 5, 16, 0.9), transparent);
    z-index: 1;
}

.flip-card-front h3 {
    position: relative;
    z-index: 2;
    font-size: 2rem;
    color: var(--color-primary-end);
    text-shadow: 0 0 10px var(--color-bg-dark);
}

.flip-card-back {
    background: linear-gradient(135deg, var(--color-bg-purple), var(--color-bg-dark));
    border: 1px solid var(--color-primary-start);
    color: var(--color-text-light);
    transform: rotateY(180deg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

.flip-card-back p {
    margin-bottom: 20px;
    font-size: 1rem;
}

/* Specific Card Backgrounds (Placeholders) */
.card-yamunotri .flip-card-front { background-image: linear-gradient(to top, rgba(10, 5, 16, 0.7), transparent), url('https://www.chardham-pilgrimage-tour.com/assets/images/yamunotri-banner3.webp'); }
.card-gangotri .flip-card-front { background-image: linear-gradient(to top, rgba(10, 5, 16, 0.7), transparent), url('https://www.chardham-pilgrimage-tour.com/assets/images/gangotri-banner1.webp'); }
.card-kedarnath .flip-card-front { background-image: linear-gradient(to top, rgba(10, 5, 16, 0.7), transparent), url('https://wallpapers.com/images/featured/kedarnath-4k-9pd6c84fjldyenjg.jpg'); }
.card-badrinath .flip-card-front { background-image: linear-gradient(to top, rgba(10, 5, 16, 0.7), transparent), url('https://www.chardham-pilgrimage-tour.com/assets/images/badrinath-banner3.webp'); }

/* --- 3. Animated Route Map / Detailed Info --- */
.route-section {
    position: relative;
    padding: 80px 0;
}

.route-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
}

/* Animated Path Line */
.route-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50px;
    height: 100%;
    width: 4px;
    background: rgba(255, 153, 51, 0.2);
    border-radius: 2px;
}

.route-progress {
    position: absolute;
    top: 0;
    left: 50px;
    width: 4px;
    height: 0; /* Animated via JS on scroll */
    background: linear-gradient(to bottom, var(--color-primary-start), var(--color-primary-end));
    box-shadow: 0 0 15px var(--color-accent-glow);
    transition: height 0.3s ease-out;
}

.route-item {
    position: relative;
    margin-bottom: 60px;
    padding-left: 100px;
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease-out;
}

.route-item.active {
    opacity: 1;
    transform: translateX(0);
}

.route-dot {
    position: absolute;
    left: 42px;
    top: 10px;
    width: 20px;
    height: 20px;
    background: var(--color-bg-dark);
    border: 3px solid var(--color-primary-start);
    border-radius: 50%;
    z-index: 2;
    transition: all var(--transition-fast);
}

.route-item:hover .route-dot {
    background: var(--color-primary-end);
    box-shadow: 0 0 20px var(--color-accent-glow);
    transform: scale(1.3);
}

.route-content {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 25px;
    transition: transform var(--transition-fast);
}

.route-content:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary-start);
    box-shadow: 0 5px 20px rgba(255, 153, 51, 0.1);
}

.route-content h4 {
    color: var(--color-primary-start);
    margin-bottom: 10px;
    font-size: 1.5rem;
}

/* --- 4. Package Inclusions & CTA --- */
.inclusions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.inclusion-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--glass-bg);
    border-radius: var(--radius-md);
}

.inclusion-item .icon {
    font-size: 1.5rem;
}

@media (max-width: 768px) {
    .route-timeline::before, .route-progress {
        left: 20px;
    }
    .route-item {
        padding-left: 60px;
    }
    .route-dot {
        left: 12px;
    }
    .slide-title {
        font-size: 2.5rem;
    }
}