/* Animation Styles */

/* Fade In 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: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

@keyframes scaleUp {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.05);
    }
}

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

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

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

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

/* Shimmer Effect */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* Bounce Animation */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

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

/* Glow Animation */
@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(99, 102, 241, 0.5),
                    0 0 10px rgba(99, 102, 241, 0.3);
    }
    50% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.8),
                    0 0 30px rgba(99, 102, 241, 0.5);
    }
}

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

/* Utility Classes */
.fade-in {
    animation: fadeIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* ── Scroll-Entry Animations (IntersectionObserver + .is-visible) ─────────── */
/* Content is visible even if JavaScript or the observer is unavailable. */
.fade-in-up,
.fade-in-down,
.fade-in-left,
.fade-in-right,
.scale-in {
    opacity: 1;
    will-change: auto;
    transition:
        opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1) var(--anim-delay, 0s),
        transform 0.5s cubic-bezier(0.4, 0, 0.2, 1) var(--anim-delay, 0s);
}

.fade-in-up,
.fade-in-down,
.fade-in-left,
.fade-in-right,
.scale-in { transform: none; }

/* Revealed state – added by IntersectionObserver */
.fade-in-up.is-visible,
.fade-in-down.is-visible,
.fade-in-left.is-visible,
.fade-in-right.is-visible,
.scale-in.is-visible {
    opacity: 1;
    transform: none;
    will-change: auto;
}

.slide-in-up {
    animation: slideInUp 0.6s ease-out forwards;
}

.slide-in-down {
    animation: slideInDown 0.6s ease-out forwards;
}

.rotate {
    animation: rotate 2s linear infinite;
}

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

.bounce {
    animation: bounce 2s ease-in-out infinite;
}

.shake {
    animation: shake 0.5s ease-in-out;
}

/* Scroll Animations */
.scroll-reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.45s ease-out, transform 0.45s ease-out;
}

@keyframes revealEntry {
    from { opacity: 0.35; transform: translateY(12px); }
    to { opacity: 1; transform: none; }
}

.reveal-entry {
    animation: revealEntry 450ms ease-out both !important;
    animation-delay: 0ms !important;
}

@media (prefers-reduced-motion: reduce) {
    .reveal-entry { animation: none !important; }
}

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

/* Stagger Animation Delays */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

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

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

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

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

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

.hover-rotate:hover {
    transform: rotate(5deg);
}

.hover-shine {
    position: relative;
    overflow: hidden;
}

.hover-shine::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: left 0.5s;
}

.hover-shine:hover::before {
    left: 100%;
}

/* Loading Animations */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: rotate 1s linear infinite;
}

.loading-dots {
    display: flex;
    gap: var(--space-sm);
}

.loading-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--primary-color);
    animation: pulse 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

/* Page Transition */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s, visibility 0.4s;
}

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

/* Parallax Effect */
.parallax {
    transition: transform 0.1s ease-out;
    will-change: transform;
}

/* Morphing Button */
.btn-morph {
    position: relative;
    overflow: hidden;
}

.btn-morph span {
    position: relative;
    z-index: 1;
    transition: transform var(--transition-base);
}

.btn-morph::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-morph:hover::before {
    width: 300px;
    height: 300px;
}

/* SVG Drawing Animation */
.svg-draw {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: draw 2s ease-out forwards;
}

@keyframes draw {
    to {
        stroke-dashoffset: 0;
    }
}

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

.text-reveal::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    transform: translateX(-100%);
    animation: textReveal 1.5s cubic-bezier(0.77, 0, 0.175, 1) forwards;
}

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

/* Counter Animation */
.count-up {
    font-variant-numeric: tabular-nums;
}

/* Gradient Background Animation */
.animated-gradient {
    background: linear-gradient(
        -45deg,
        var(--primary-color),
        var(--secondary-color),
        var(--accent-color),
        var(--primary-light)
    );
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

/* Smooth Scroll */
html.smooth-scroll {
    scroll-behavior: smooth;
}

/* Disable animations for reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .parallax {
        transform: none !important;
    }
}