/* ============================================
   Animation System - iOS 18 Style Transitions
   ============================================ */

/* Page transition - iOS Push */
@keyframes pagePushIn {
    from {
        transform: translateX(100%);
        opacity: 0.8;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes pagePushOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(-30%);
        opacity: 0.5;
    }
}

/* Page transition - iOS Pop (back) */
@keyframes pagePopIn {
    from {
        transform: translateX(-30%);
        opacity: 0.5;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes pagePopOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0.8;
    }
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.92);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Stagger children animation */
@keyframes staggerFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Spring bounce */
@keyframes springBounce {
    0% { transform: scale(0.8); }
    40% { transform: scale(1.05); }
    60% { transform: scale(0.97); }
    80% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

/* Pulse glow */
@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 20px rgba(10, 132, 255, 0.2); }
    50% { box-shadow: 0 0 40px rgba(10, 132, 255, 0.4); }
}

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

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

/* Slide in from bottom */
@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Slide in from left */
@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Card stack reveal */
@keyframes cardReveal {
    from {
        opacity: 0;
        transform: translateY(40px) rotateX(10deg);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotateX(0);
    }
}

/* Hero text reveal */
@keyframes heroTextReveal {
    from {
        opacity: 0;
        transform: translateY(30px);
        filter: blur(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

/* Scale in with spring */
@keyframes scaleInSpring {
    0% {
        opacity: 0;
        transform: scale(0.6);
    }
    60% {
        transform: scale(1.05);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Ripple effect */
@keyframes ripple {
    from {
        transform: scale(0);
        opacity: 0.6;
    }
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Typing cursor blink */
@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Progress bar animation */
@keyframes progressFill {
    from { width: 0; }
}

/* Scroll indicator bounce */
@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 0.6; }
    50% { transform: translateY(8px); opacity: 1; }
}

/* Page transition classes */
.page-transition-enter {
    animation: pagePushIn 0.5s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

.page-transition-leave {
    animation: pagePushOut 0.5s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

.page-transition-enter-reverse {
    animation: pagePopIn 0.5s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

.page-transition-leave-reverse {
    animation: pagePopOut 0.5s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

/* Animation utility classes */
.anim-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

.anim-fade-in-up {
    animation: fadeInUp 0.6s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

.anim-fade-in-down {
    animation: fadeInDown 0.6s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

.anim-fade-in-scale {
    animation: fadeInScale 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.anim-spring-bounce {
    animation: springBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.anim-pulse-glow {
    animation: pulseGlow 2s ease-in-out infinite;
}

.anim-float {
    animation: float 3s ease-in-out infinite;
}

.anim-spin {
    animation: spin 1s linear infinite;
}

.anim-slide-up {
    animation: slideUp 0.5s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

.anim-card-reveal {
    animation: cardReveal 0.6s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

.anim-hero-reveal {
    animation: heroTextReveal 0.8s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

.anim-scale-in-spring {
    animation: scaleInSpring 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* Stagger delay utilities */
.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }
.stagger-5 { animation-delay: 0.25s; }
.stagger-6 { animation-delay: 0.3s; }
.stagger-7 { animation-delay: 0.35s; }
.stagger-8 { animation-delay: 0.4s; }

/* Initial hidden state for animated elements */
.anim-hidden {
    opacity: 0;
}

/* Scroll-triggered animation base */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: 
        opacity 0.6s cubic-bezier(0.32, 0.72, 0, 1),
        transform 0.6s cubic-bezier(0.32, 0.72, 0, 1);
}

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

.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: 
        opacity 0.6s cubic-bezier(0.32, 0.72, 0, 1),
        transform 0.6s cubic-bezier(0.32, 0.72, 0, 1);
}

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

.scroll-reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: 
        opacity 0.6s cubic-bezier(0.32, 0.72, 0, 1),
        transform 0.6s cubic-bezier(0.32, 0.72, 0, 1);
}

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

/* Hover lift effect */
.hover-lift {
    transition: transform var(--transition-spring), box-shadow var(--transition-spring);
}

.hover-lift:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-float);
}

/* Hover scale effect */
.hover-scale {
    transition: transform var(--transition-spring);
}

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

/* Active press effect (like iOS buttons) */
.press-effect {
    transition: transform 0.1s ease;
}

.press-effect:active {
    transform: scale(0.96);
}

/* Ripple container */
.ripple-container {
    position: relative;
    overflow: hidden;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    animation: ripple 0.6s ease-out forwards;
    pointer-events: none;
}

/* Smooth image loading */
.img-fade-in {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.img-fade-in.loaded {
    opacity: 1;
}

/* Skeleton loading shimmer */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-tertiary) 0%,
        var(--bg-secondary) 50%,
        var(--bg-tertiary) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

/* Loading spinner */
.loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--separator);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Cursor blink for typing effect */
.typing-cursor::after {
    content: '|';
    animation: blink 1s step-end infinite;
    color: var(--accent);
    margin-left: 2px;
}

/* Parallax wrapper */
.parallax-wrapper {
    perspective: 1000px;
    transform-style: preserve-3d;
}

/* 3D card tilt */
.card-3d {
    transition: transform 0.3s ease;
    transform-style: preserve-3d;
}

/* Magnetic button effect base */
.magnetic {
    transition: transform 0.2s ease-out;
}

/* Backdrop blur transition */
.blur-transition {
    transition: backdrop-filter 0.3s ease;
}

/* ============================================
   Vue Router Transition Animations
   ============================================ */

/* Fade transition */
.fade-enter-active,
.fade-leave-active {
    transition: opacity 0.3s ease;
}

.fade-enter-from,
.fade-leave-to {
    opacity: 0;
}

/* Slide left (forward navigation) */
.slide-left-enter-active {
    animation: pagePushIn 0.5s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

.slide-left-leave-active {
    animation: pagePushOut 0.5s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

/* Slide right (back navigation) */
.slide-right-enter-active {
    animation: pagePopIn 0.5s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

.slide-right-leave-active {
    animation: pagePopOut 0.5s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}

/* Page slide wrapper (alternative) */
.page-slide-enter-active,
.page-slide-leave-active {
    transition: all 0.5s cubic-bezier(0.32, 0.72, 0, 1);
}

.page-slide-enter-from {
    opacity: 0;
    transform: translateX(100%);
}

.page-slide-leave-to {
    opacity: 0.5;
    transform: translateX(-30%);
}

.page-slide-reverse-enter-active,
.page-slide-reverse-leave-active {
    transition: all 0.5s cubic-bezier(0.32, 0.72, 0, 1);
}

.page-slide-reverse-enter-from {
    opacity: 0.5;
    transform: translateX(-30%);
}

.page-slide-reverse-leave-to {
    opacity: 0;
    transform: translateX(100%);
}

/* Entrance animation for page sections */
.section-enter {
    opacity: 0;
}

.section-enter-active {
    animation: fadeInUp 0.7s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}