/* ============================================
   MERAE - Animations
   ============================================ */

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

/* Float Animation */
@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(2deg);
    }
    50% {
        transform: translateY(-10px) rotate(-1deg);
    }
    75% {
        transform: translateY(-30px) rotate(1deg);
    }
}

/* Scroll Dot */
@keyframes scrollDot {
    0%, 100% {
        transform: translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateY(12px);
        opacity: 0.3;
    }
}

/* Marquee */
@keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Typewriter Cursor Blink */
@keyframes cursorBlink {
    0%, 49% {
        opacity: 1;
    }
    50%, 100% {
        opacity: 0;
    }
}

/* Underline Draw Animation */
@keyframes drawUnderline {
    0% {
        stroke-dashoffset: 1000;
    }
    100% {
        stroke-dashoffset: 0;
    }
}

/* Pulse */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* Slide In Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Slide In Right */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Draw Line */
@keyframes drawLine {
    from {
        stroke-dashoffset: 1000;
    }
    to {
        stroke-dashoffset: 0;
    }
}

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

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

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

/* Glow Pulse */
@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 128, 128, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(0, 128, 128, 0.5);
    }
}

/* ============================================
   Reveal Animations (Scroll-triggered)
   ============================================ */
.reveal-up {
    opacity: 0;
    transform: translateY(60px);
    transition: 
        opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    transition-delay: var(--delay, 0s);
}

.reveal-up.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-60px);
    transition: 
        opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    transition-delay: var(--delay, 0s);
}

.reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(60px);
    transition: 
        opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    transition-delay: var(--delay, 0s);
}

.reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: 
        opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    transition-delay: var(--delay, 0s);
}

.reveal-scale.revealed {
    opacity: 1;
    transform: scale(1);
}

.reveal-fade {
    opacity: 0;
    transition: opacity 1s ease;
    transition-delay: var(--delay, 0s);
}

.reveal-fade.revealed {
    opacity: 1;
}

/* ============================================
   Stagger Children Animation
   ============================================ */
.stagger-children > * {
    opacity: 0;
    transform: translateY(30px);
    transition: 
        opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

/* ============================================
   Text Split Animation
   ============================================ */
.split-text .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(100%);
    transition: 
        opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.split-text.revealed .char {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Parallax Elements
   ============================================ */
.parallax {
    will-change: transform;
}

/* ============================================
   Hover Animations
   ============================================ */

/* Scale on Hover */
.hover-scale {
    transition: transform var(--transition-slow);
}

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

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

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

/* Glow on Hover */
.hover-glow {
    transition: box-shadow var(--transition-slow);
}

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

/* ============================================
   Loading States
   ============================================ */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-gray-200) 25%,
        var(--color-gray-100) 50%,
        var(--color-gray-200) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* ============================================
   Page Transitions
   ============================================ */
.page-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-primary);
    z-index: 10000;
    transform: translateY(100%);
    transition: transform 0.6s cubic-bezier(0.76, 0, 0.24, 1);
}

.page-transition-overlay.active {
    transform: translateY(0);
}

/* ============================================
   Counter Animation
   ============================================ */
.counter {
    display: inline-block;
    transition: transform 0.1s ease;
}

.counter.counting {
    transform: scale(1.02);
}

/* ============================================
   Image Reveal
   ============================================ */
.image-reveal {
    position: relative;
    overflow: hidden;
}

.image-reveal::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-primary);
    transform: translateX(-100%);
}

.image-reveal.revealed::after {
    animation: imageReveal 1.2s cubic-bezier(0.76, 0, 0.24, 1) forwards;
}

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

.image-reveal img {
    opacity: 0;
    transform: scale(1.1);
    transition: opacity 0.5s ease 0.5s, transform 1.2s ease;
}

.image-reveal.revealed img {
    opacity: 1;
    transform: scale(1);
}

/* ============================================
   Line Draw Animation
   ============================================ */
.line-draw {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
}

.line-draw.revealed {
    animation: drawLine 1.5s ease forwards;
}

/* ============================================
   Magnetic Button Enhancement
   ============================================ */
.magnetic {
    transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

/* ============================================
   Smooth Scroll Indicator
   ============================================ */
.scroll-indicator-line {
    position: fixed;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 100px;
    background: var(--color-gray-200);
    z-index: 100;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.scroll-indicator-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--scroll-progress, 0%);
    background: var(--color-primary);
    transition: height 0.1s linear;
}

body.scrolling .scroll-indicator-line {
    opacity: 1;
}

/* ============================================
   Prefers Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .reveal-up,
    .reveal-left,
    .reveal-right,
    .reveal-scale,
    .reveal-fade {
        opacity: 1;
        transform: none;
    }
}