/* ========================================
   FRIENDS Wedding Theme - Animations
   ======================================== */

/* ========================================
   Keyframe Animations
   ======================================== */

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

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Pulse Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.8);
    }
}

/* Bounce Animation */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-15px);
    }
    60% {
        transform: translateX(-50%) translateY(-7px);
    }
}

/* Heartbeat Animation */
@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    14% {
        transform: scale(1.3);
    }
    28% {
        transform: scale(1);
    }
    42% {
        transform: scale(1.3);
    }
    70% {
        transform: scale(1);
    }
}

/* Shimmer Animation */
@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* Float Animation */
@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-10px) rotate(2deg);
    }
    50% {
        transform: translateY(-5px) rotate(-1deg);
    }
    75% {
        transform: translateY(-15px) rotate(1deg);
    }
}

/* Gentle Float for Floating Elements */
@keyframes gentleFloat {
    0% {
        transform: translate(0, 0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.2;
    }
    90% {
        opacity: 0.2;
    }
    100% {
        transform: translate(var(--float-x, 50px), var(--float-y, -100vh)) rotate(var(--float-rotate, 360deg));
        opacity: 0;
    }
}

/* Steam Animation */
@keyframes steam {
    0% {
        opacity: 0;
        transform: translateY(0) scaleX(1);
    }
    50% {
        opacity: 0.6;
    }
    100% {
        opacity: 0;
        transform: translateY(-15px) scaleX(1.5);
    }
}

/* Water/Fountain Animation */
@keyframes waterFlow {
    0%, 100% {
        opacity: 0.3;
        transform: scaleY(1);
    }
    50% {
        opacity: 0.8;
        transform: scaleY(1.1);
    }
}

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

/* Clock Hands */
@keyframes hourHand {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes minuteHand {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Typewriter Effect */
@keyframes typewriter {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

/* Slide In Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Shake Animation (for form validation) */
@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-5px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

/* Success Checkmark Animation */
@keyframes checkmark {
    0% {
        stroke-dashoffset: 50;
    }
    100% {
        stroke-dashoffset: 0;
    }
}

@keyframes circleGrow {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Countdown Number Change */
@keyframes countdownPulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* ========================================
   Steam SVG Animations
   ======================================== */
.steam {
    animation: steam 2s ease-in-out infinite;
}

.steam-1 {
    animation-delay: 0s;
}

.steam-2 {
    animation-delay: 0.5s;
}

.steam-3 {
    animation-delay: 1s;
}

/* ========================================
   Water/Fountain SVG Animations
   ======================================== */
.water {
    animation: waterFlow 1.5s ease-in-out infinite;
}

.water-1 {
    animation-delay: 0s;
}

.water-2 {
    animation-delay: 0.3s;
}

.water-3 {
    animation-delay: 0.6s;
}

/* ========================================
   Clock Animation
   ======================================== */
.hour-hand {
    transform-origin: center;
    animation: hourHand 43200s linear infinite;
}

.minute-hand {
    transform-origin: center;
    animation: minuteHand 3600s linear infinite;
}

/* ========================================
   Scroll-Triggered Animations
   ======================================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll.delay-1 {
    transition-delay: 0.1s;
}

.animate-on-scroll.delay-2 {
    transition-delay: 0.2s;
}

.animate-on-scroll.delay-3 {
    transition-delay: 0.3s;
}

.animate-on-scroll.delay-4 {
    transition-delay: 0.4s;
}

/* ========================================
   Hover Animations
   ======================================== */
.hover-lift {
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.hover-scale {
    transition: transform var(--transition-fast);
}

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

.hover-glow {
    transition: box-shadow var(--transition-medium);
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(212, 175, 55, 0.3);
}

/* ========================================
   Loading States
   ======================================== */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    animation: shimmer 1.5s infinite;
}

/* ========================================
   Floating Coffee Cups Animation
   ======================================== */
.floating-coffee {
    position: absolute;
    opacity: 0;
    animation: gentleFloat linear forwards;
    will-change: transform, opacity;
}

.floating-coffee svg {
    width: 30px;
    height: 30px;
    color: var(--color-gray-700);
}

/* ========================================
   Reduced Motion
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .scroll-indicator {
        animation: none;
    }

    .floating-coffee {
        display: none;
    }
}

/* ========================================
   Page Transition
   ======================================== */
.page-transition {
    position: fixed;
    inset: 0;
    background: var(--color-black);
    z-index: 9999;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.page-transition.active {
    opacity: 1;
}

/* ========================================
   Reveal Animation Classes
   ======================================== */
.reveal {
    position: relative;
    overflow: hidden;
}

.reveal::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-black);
    transform: translateX(-101%);
    z-index: 1;
}

.reveal.active::before {
    animation: revealSlide 0.8s ease forwards;
}

@keyframes revealSlide {
    0% {
        transform: translateX(-101%);
    }
    50% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(101%);
    }
}

/* ========================================
   Text Reveal Animation
   ======================================== */
.text-reveal {
    overflow: hidden;
}

.text-reveal span {
    display: inline-block;
    transform: translateY(100%);
    opacity: 0;
    transition: transform 0.6s ease, opacity 0.6s ease;
}

.text-reveal.visible span {
    transform: translateY(0);
    opacity: 1;
}

/* ========================================
   Stagger Children Animation
   ======================================== */
.stagger-children > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.5s; }
.stagger-children.visible > *:nth-child(6) { transition-delay: 0.6s; }

.stagger-children.visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Parallax Effect (CSS Only)
   ======================================== */
.parallax-container {
    perspective: 1px;
    height: 100vh;
    overflow-x: hidden;
    overflow-y: auto;
}

.parallax-layer {
    position: absolute;
    inset: 0;
}

.parallax-layer--back {
    transform: translateZ(-1px) scale(2);
}

.parallax-layer--base {
    transform: translateZ(0);
}

/* ========================================
   Magnetic Button Effect
   ======================================== */
.magnetic-btn {
    position: relative;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.magnetic-btn span {
    display: inline-block;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}