/* ID TRAVELS - Custom Styles */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}
.slide-up {
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.8s ease-out;
}
.slide-up.visible {
    transform: translateY(0);
    opacity: 1;
}
.bounce-in {
    animation: bounceIn 0.8s ease-out;
}
@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); opacity: 1; }
}
.pulse-slow {
    animation: pulse 3s infinite;
}
.gradient-text {
    background: linear-gradient(135deg, #2563eb, #1e40af);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.card-hover {
    position: relative;
    z-index: 0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.12), 0 4px 10px rgba(0,0,0,0.06);
    z-index: 1; /* lift above siblings to avoid shadow clipping */
}
.quiz-progress {
    transition: width 0.3s ease;
}
.step-number {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
    transition: all 0.3s ease;
}
.step-number:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.6);
}

/* Enhanced micro-interactions */
.btn-hover {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}
.btn-hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}
.btn-hover:hover::before {
    left: 100%;
}

.floating {
    animation: float 3s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.scale-hover {
    transition: transform 0.2s ease;
}
.scale-hover:hover {
    transform: scale(1.05);
}

.glow-on-hover {
    transition: box-shadow 0.3s ease;
}
.glow-on-hover:hover {
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.5);
}

.text-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}
.text-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth loading spinner */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f4f6;
    border-top: 4px solid #2563eb;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Prevent shadow clipping inside carousel */
.carousel-viewport {
    overflow-x: hidden;
    overflow-y: visible;
}

/* Ensure GPU acceleration to avoid flicker on transform */
.transform-gpu {
    transform: translateZ(0);
}

/* Disable hover animation on testimonial review cards */
#testimonials .card-hover,
#testimonials .card-hover:hover {
    transform: none !important;
    box-shadow: none !important;
    transition: none !important;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Enhanced Mobile Navigation */
.mobile-menu {
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
}
.mobile-menu.open {
    transform: translateX(0);
}
.hamburger {
    cursor: pointer;
    transition: all 0.3s ease;
}
.hamburger.active .line1 {
    transform: translate(-50%, -50%) rotate(-45deg);
    position: absolute;
    top: 50%;
    left: 50%;
    margin: 0;
}
.hamburger.active .line2 {
    transform: translate(-50%, -50%) rotate(0deg);
    position: absolute;
    top: 50%;
    left: 50%;
    margin: 0;
}
.hamburger.active .line3 {
    transform: translate(-50%, -50%) rotate(45deg);
    position: absolute;
    top: 50%;
    left: 50%;
    margin: 0;
}
.hamburger.active .line4 {
    transform: translate(-50%, -50%) rotate(90deg);
    position: absolute;
    top: 50%;
    left: 50%;
    margin: 0;
    opacity: 1;
}
.hamburger .line {
    width: 25px;
    height: 3px;
    background-color: #374151;
    margin: 3px 0;
    transition: all 0.3s ease;
    display: block;
    position: relative;
}
.hamburger .line4 {
    opacity: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
}
.hamburger {
    padding: 8px;
    width: 41px;
    height: 41px;
    display: block;
    position: relative;
}

/* Touch-friendly targets */
@media (max-width: 768px) {
    .touch-target {
        min-height: 44px;
        min-width: 44px;
        padding: 12px 16px;
    }
    .mobile-quiz-option {
        padding: 16px;
        font-size: 16px;
        margin-bottom: 12px;
    }
    
    /* Mobile-specific optimizations */
    .mobile-text-lg {
        font-size: 1.125rem;
        line-height: 1.75rem;
    }
    .mobile-spacing {
        padding: 1rem;
    }
    .mobile-hero-text {
        font-size: 2.25rem;
        line-height: 2.5rem;
    }
}

/* Enhanced Image Loading System */
.lazy-img, [data-src] {
    opacity: 0;
    transition: opacity 0.4s ease, filter 0.3s ease;
    background-color: #f3f4f6;
    background-image: linear-gradient(90deg, #f3f4f6 0%, #e5e7eb 50%, #f3f4f6 100%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    will-change: opacity, filter;
}

.lazy-img.loading {
    opacity: 1;
    animation: none;
    background: none;
}

.lazy-img.loaded, [data-src].loaded {
    opacity: 1;
    background: none;
    animation: none;
}

.lazy-img.error {
    opacity: 1;
    background: #fee2e2;
    animation: none;
    position: relative;
}

.lazy-img.error::after {
    content: '📷';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    color: #dc2626;
}

/* Background image loading */
[data-bg] {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-color: #f3f4f6;
    background-image: linear-gradient(90deg, #f3f4f6 0%, #e5e7eb 50%, #f3f4f6 100%);
    animation: shimmer 1.5s infinite;
}

[data-bg].bg-loaded {
    background-image: var(--bg-url);
    animation: none;
}

/* Shimmer loading animation */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Progressive image enhancement */
.progressive-img {
    position: relative;
    overflow: hidden;
}

.progressive-img img {
    transition: filter 0.3s ease;
}

/* Responsive image containers */
.img-container {
    position: relative;
    display: block;
    overflow: hidden;
}

.img-container::before {
    content: '';
    display: block;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.img-container img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Image performance optimizations */
img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: optimize-contrast;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    .lazy-img, [data-src] {
        animation: none;
        transition: opacity 0.1s ease;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .lazy-img, [data-src] {
        background-color: #000;
        background-image: none;
    }
}

/* Safari select alignment fix inside Novatours widget */
.novatours-widget select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, #6b7280 50%), linear-gradient(135deg, #6b7280 50%, transparent 50%);
    background-position: calc(100% - 16px) calc(50% - 3px), calc(100% - 12px) calc(50% + 3px);
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    padding-right: 32px;
}

.novatours-widget select:focus {
    outline: none;
}

/* Mobile vibration feedback */
.vibrate-on-tap {
    transition: transform 0.1s ease;
}
.vibrate-on-tap:active {
    transform: scale(0.95);
}