/**
 * IMAVAIS.COM - Animations
 * ========================
 * Smooth, premium animations and effects
 */

/* ========================================
   ANIMATION UTILITIES
   ======================================== */

/* Fade animations */
.fade-in {
    opacity: 0;
    animation: fadeIn 0.6s ease forwards;
}

.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.in-view {
    opacity: 1;
    transform: translateY(0);
}

.fade-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-left.in-view {
    opacity: 1;
    transform: translateX(0);
}

.fade-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-right.in-view {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.scale-in.in-view {
    opacity: 1;
    transform: scale(1);
}

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

.stagger-children.in-view > *:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: translateY(0); }
.stagger-children.in-view > *:nth-child(2) { transition-delay: 80ms; opacity: 1; transform: translateY(0); }
.stagger-children.in-view > *:nth-child(3) { transition-delay: 160ms; opacity: 1; transform: translateY(0); }
.stagger-children.in-view > *:nth-child(4) { transition-delay: 240ms; opacity: 1; transform: translateY(0); }
.stagger-children.in-view > *:nth-child(5) { transition-delay: 320ms; opacity: 1; transform: translateY(0); }
.stagger-children.in-view > *:nth-child(6) { transition-delay: 400ms; opacity: 1; transform: translateY(0); }

/* ========================================
   KEYFRAME ANIMATIONS
   ======================================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes slideInUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

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

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

/* Gradient shift */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* ========================================
   HERO ANIMATIONS
   ======================================== */

.hero-content {
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-eyebrow {
    animation: fadeInLeft 0.6s ease-out 0.5s both;
}

.hero h1 {
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-tagline {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-cta {
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.hero-scroll {
    animation: fadeIn 0.6s ease-out 1.5s both;
}

/* ========================================
   INTERACTIVE EFFECTS
   ======================================== */

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

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

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

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

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

.hover-scale:hover {
    transform: scale(1.02);
}

/* Magnetic effect (for buttons) */
.magnetic {
    transition: transform var(--transition-fast);
}

/* 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: currentColor;
    transition: width var(--transition-base);
}

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

/* ========================================
   LOADING STATES
   ======================================== */

/* Skeleton loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-alt) 25%,
        var(--color-border) 50%,
        var(--color-bg-alt) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

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

/* ========================================
   PAGE TRANSITIONS
   ======================================== */

/* Page enter */
.page-enter {
    animation: fadeIn 0.4s ease-out;
}

/* Section reveal on scroll */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ========================================
   PRELOADER
   ======================================== */

.preloader {
    position: fixed;
    inset: 0;
    background: var(--color-text);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-logo {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.preloader-bar-container {
    width: 200px;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.preloader-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), #fff);
    width: 0;
    animation: preloaderProgress 2s ease-out forwards;
}

@keyframes preloaderProgress {
    0% { width: 0; }
    100% { width: 100%; }
}

/* ========================================
   SPECIAL EFFECTS
   ======================================== */

/* Gradient text animation */
.gradient-text-animated {
    background: linear-gradient(
        90deg,
        var(--color-accent),
        var(--color-secondary),
        var(--color-accent)
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
}

/* Animated border */
.animated-border {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.animated-border::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: linear-gradient(
        90deg,
        var(--color-accent),
        var(--color-secondary),
        var(--color-accent)
    );
    background-size: 200% 100%;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    animation: gradientShift 3s ease infinite;
    border-radius: inherit;
}

/* Typing cursor */
.typing-cursor::after {
    content: '|';
    animation: blink 1s step-end infinite;
    color: var(--color-accent);
}

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

/* ========================================
   PARALLAX EFFECTS
   ======================================== */

.parallax-slow {
    transform: translateY(calc(var(--scroll) * 0.1));
}

.parallax-medium {
    transform: translateY(calc(var(--scroll) * 0.2));
}

.parallax-fast {
    transform: translateY(calc(var(--scroll) * 0.3));
}

/* ========================================
   COUNTER ANIMATION
   ======================================== */

.counter {
    display: inline-block;
    font-variant-numeric: tabular-nums;
}

/* ========================================
   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-behavior: auto !important;
    }
    
    .parallax-slow,
    .parallax-medium,
    .parallax-fast {
        transform: none !important;
    }
}