/* ================================================================
   GANGULY CABS — Animations Stylesheet
   Smooth, Elegant Transitions for Luxury Experience
   ================================================================ */

/* ----------------------------------------------------------------
   KEYFRAME ANIMATIONS
   ---------------------------------------------------------------- */

/* Fade In */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* Fade In Down */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Left */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Fade In Right */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scale In */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Bounce Down - For scroll indicator */
@keyframes bounceDown {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(10px);
    }
    60% {
        transform: translateY(5px);
    }
}

/* Pulse */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

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

/* Spin */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Gold Line Expand */
@keyframes goldLineExpand {
    from {
        width: 0;
    }
    to {
        width: 80px;
    }
}

/* Float */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ----------------------------------------------------------------
   SCROLL-TRIGGERED ANIMATIONS
   ---------------------------------------------------------------- */

/* Base state for animated elements */
[data-animate] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="fade-up"] {
    transform: translateY(40px);
}

[data-animate="fade-down"] {
    transform: translateY(-40px);
}

[data-animate="fade-left"] {
    transform: translateX(40px);
}

[data-animate="fade-right"] {
    transform: translateX(-40px);
}

[data-animate="scale"] {
    transform: scale(0.9);
}

[data-animate="fade"] {
    transform: none;
}

/* Animated state */
[data-animate].animated {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
}

/* Staggered animations */
[data-animate-delay="100"] { transition-delay: 100ms; }
[data-animate-delay="200"] { transition-delay: 200ms; }
[data-animate-delay="300"] { transition-delay: 300ms; }
[data-animate-delay="400"] { transition-delay: 400ms; }
[data-animate-delay="500"] { transition-delay: 500ms; }
[data-animate-delay="600"] { transition-delay: 600ms; }
[data-animate-delay="700"] { transition-delay: 700ms; }
[data-animate-delay="800"] { transition-delay: 800ms; }

/* ----------------------------------------------------------------
   HOVER ANIMATIONS
   ---------------------------------------------------------------- */

/* Button Hover Lift */
.btn-hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.btn-hover-lift:hover {
    transform: translateY(-3px);
}

/* Card Hover Lift */
.card-hover-lift {
    transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.card-hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

/* Image Zoom on Hover */
.img-hover-zoom {
    overflow: hidden;
}

.img-hover-zoom img {
    transition: transform var(--transition-slow);
}

.img-hover-zoom:hover img {
    transform: scale(1.08);
}

/* Link Underline Animation */
.link-underline {
    position: relative;
    display: inline-block;
}

.link-underline::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-gold);
    transition: width var(--transition-base);
}

.link-underline:hover::after {
    width: 100%;
}

/* Icon Rotate on Hover */
.icon-hover-rotate:hover .icon {
    transform: rotate(90deg);
}

/* ----------------------------------------------------------------
   PAGE TRANSITIONS
   ---------------------------------------------------------------- */

/* Page Loader */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-cream);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-max);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.loaded {
    opacity: 0;
    visibility: hidden;
}

.page-loader__spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-light);
    border-top-color: var(--color-gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Page Content Fade In */
.page-content {
    animation: fadeIn 0.6s ease;
}

/* ----------------------------------------------------------------
   NAVIGATION ANIMATIONS
   ---------------------------------------------------------------- */

/* Mobile Menu Slide */
.navbar__menu {
    transition: transform var(--transition-slow), opacity var(--transition-base);
}

/* Hamburger animation is defined in responsive.css to keep breakpoint-specific values in one place */

/* Header Hide on Scroll Down */
.header.header--hidden {
    transform: translateY(-100%);
}

/* ----------------------------------------------------------------
   ACCORDION / EXPAND ANIMATIONS
   ---------------------------------------------------------------- */

/* Service Card Details */
.service-card__details {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.3s ease, padding 0.3s ease;
}

.service-card__details:not([hidden]) {
    max-height: 500px;
    opacity: 1;
}

/* FAQ Accordion */
.accordion__content {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.3s ease;
}

.accordion__item.active .accordion__content {
    max-height: 300px;
    opacity: 1;
}

.accordion__icon {
    transition: transform var(--transition-base);
}

.accordion__item.active .accordion__icon {
    transform: rotate(180deg);
}

/* ----------------------------------------------------------------
   MODAL ANIMATIONS
   ---------------------------------------------------------------- */

.modal {
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal__content {
    transition: transform var(--transition-slow), opacity var(--transition-base);
}

.modal.active .modal__content {
    animation: scaleIn 0.4s ease forwards;
}

/* ----------------------------------------------------------------
   FORM ANIMATIONS
   ---------------------------------------------------------------- */

/* Input Focus Animation */
.form-input,
.form-select,
.form-textarea {
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

/* Form Success Animation */
.form-success {
    animation: fadeInUp 0.5s ease forwards;
}

/* Submit Button Loading */
.btn--loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn--loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-white);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ----------------------------------------------------------------
   SCROLL PROGRESS INDICATOR
   ---------------------------------------------------------------- */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold), var(--color-emerald));
    z-index: calc(var(--z-fixed) + 1);
    transition: width 0.1s linear;
}

/* ----------------------------------------------------------------
   NOTIFICATION / TOAST ANIMATIONS
   ---------------------------------------------------------------- */

.toast {
    animation: fadeInRight 0.4s ease forwards;
}

.toast.toast--exit {
    animation: fadeInRight 0.3s ease reverse forwards;
}

/* ----------------------------------------------------------------
   SKELETON LOADING
   ---------------------------------------------------------------- */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-cream) 25%,
        rgba(255, 255, 255, 0.5) 50%,
        var(--bg-cream) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton--text {
    height: 1em;
    margin-bottom: var(--space-2);
}

.skeleton--title {
    height: 2em;
    width: 60%;
    margin-bottom: var(--space-4);
}

.skeleton--image {
    aspect-ratio: 16/9;
}

/* ----------------------------------------------------------------
   REDUCED MOTION PREFERENCE
   ---------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    [data-animate] {
        opacity: 1;
        transform: none;
    }
}