/* ============================================
   ANIMATIONS CSS
   ============================================ */

/* ============================================
   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);
    }
}

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

/* Fade In Classes */
.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in-down {
    animation: fadeInDown 0.8s ease forwards;
}

.fade-in-left {
    animation: fadeInLeft 0.8s ease forwards;
}

.fade-in-right {
    animation: fadeInRight 0.8s ease forwards;
}

.fade-in-scale {
    animation: fadeInScale 0.6s ease forwards;
}

/* Staggered Delays */
.delay-1 {
    animation-delay: 0.1s;
    opacity: 0;
}
.delay-2 {
    animation-delay: 0.2s;
    opacity: 0;
}
.delay-3 {
    animation-delay: 0.3s;
    opacity: 0;
}
.delay-4 {
    animation-delay: 0.4s;
    opacity: 0;
}
.delay-5 {
    animation-delay: 0.5s;
    opacity: 0;
}
.delay-6 {
    animation-delay: 0.6s;
    opacity: 0;
}
.delay-7 {
    animation-delay: 0.7s;
    opacity: 0;
}
.delay-8 {
    animation-delay: 0.8s;
    opacity: 0;
}

/* ============================================
   SLIDE ANIMATIONS
   ============================================ */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

.slide-up {
    animation: slideUp 0.8s ease forwards;
}

.slide-down {
    animation: slideDown 0.8s ease forwards;
}

.slide-left {
    animation: slideLeft 0.8s ease forwards;
}

.slide-right {
    animation: slideRight 0.8s ease forwards;
}

/* ============================================
   SCROLL REVEAL ANIMATIONS
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ============================================
   FLOATING ANIMATIONS
   ============================================ */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes floatSlow {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}

@keyframes floatFast {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-25px);
    }
}

.float {
    animation: float 6s ease-in-out infinite;
}

.float-slow {
    animation: floatSlow 8s ease-in-out infinite;
}

.float-fast {
    animation: floatFast 4s ease-in-out infinite;
}

/* ============================================
   GLOW EFFECTS
   ============================================ */
@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(108, 60, 225, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(108, 60, 225, 0.6);
    }
}

@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 30px rgba(108, 60, 225, 0.2);
    }
    25% {
        box-shadow: 0 0 60px rgba(108, 60, 225, 0.4);
    }
    50% {
        box-shadow: 0 0 30px rgba(108, 60, 225, 0.2);
    }
    75% {
        box-shadow: 0 0 60px rgba(108, 60, 225, 0.4);
    }
}

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

.glow-pulse {
    animation: glowPulse 4s ease-in-out infinite;
}

.glow-hover {
    transition: var(--transition-smooth);
}

.glow-hover:hover {
    box-shadow: 0 0 40px rgba(108, 60, 225, 0.4);
}

/* ============================================
   GRADIENT ANIMATIONS
   ============================================ */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes gradientFlow {
    0% {
        background-position: 0% 0%;
    }
    100% {
        background-position: 100% 100%;
    }
}

.gradient-shift {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
    background-size: 200% 200%;
    animation: gradientShift 6s ease-in-out infinite;
}

.gradient-flow {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
    background-size: 200% 200%;
    animation: gradientFlow 8s ease-in-out infinite;
}

/* ============================================
   HOVER ANIMATIONS
   ============================================ */
.hover-lift {
    transition: var(--transition-smooth);
}

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

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

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

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

.hover-rotate:hover {
    transform: rotate(6deg);
}

.hover-glow {
    transition: var(--transition-smooth);
}

.hover-glow:hover {
    box-shadow: 0 0 40px rgba(108, 60, 225, 0.3);
}

.hover-border-glow {
    transition: var(--transition-smooth);
}

.hover-border-glow:hover {
    border-color: var(--gradient-start);
    box-shadow: 0 0 30px rgba(108, 60, 225, 0.15);
}

/* ============================================
   TEXT ANIMATIONS
   ============================================ */
@keyframes textShimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.text-shimmer {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textShimmer 4s linear infinite;
}

@keyframes textPulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

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

/* ============================================
   LOADER ANIMATIONS
   ============================================ */
@keyframes loaderPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(0.8);
        opacity: 0.5;
    }
}

.loader-pulse {
    animation: loaderPulse 1.5s ease-in-out infinite;
}

@keyframes loaderSpin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

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

/* ============================================
   BORDER ANIMATIONS
   ============================================ */
@keyframes borderGlow {
    0% {
        border-color: var(--gradient-start);
    }
    50% {
        border-color: var(--gradient-end);
    }
    100% {
        border-color: var(--gradient-start);
    }
}

.border-glow-animation {
    animation: borderGlow 3s ease-in-out infinite;
}

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

/* ============================================
   BACKGROUND ANIMATIONS
   ============================================ */
@keyframes bgSlide {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.bg-slide {
    background-size: 200% 200%;
    animation: bgSlide 10s ease-in-out infinite;
}

/* ============================================
   PARTICLE ANIMATIONS
   ============================================ */
@keyframes particleFloat {
    0% {
        transform: translateY(0) translateX(0);
        opacity: 0.6;
    }
    25% {
        transform: translateY(-30px) translateX(15px);
        opacity: 0.8;
    }
    50% {
        transform: translateY(-60px) translateX(-10px);
        opacity: 0.4;
    }
    75% {
        transform: translateY(-90px) translateX(20px);
        opacity: 0.8;
    }
    100% {
        transform: translateY(-120px) translateX(0);
        opacity: 0;
    }
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    animation: particleFloat linear infinite;
    pointer-events: none;
}

/* ============================================
   CARD HOVER ANIMATIONS
   ============================================ */
@keyframes cardHover {
    0% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-8px) scale(1.02);
    }
    100% {
        transform: translateY(-4px) scale(1.01);
    }
}

.card-hover-animate {
    transition: var(--transition-smooth);
}

.card-hover-animate:hover {
    animation: cardHover 0.5s ease forwards;
}

/* ============================================
   PROJECT CARD OVERLAY ANIMATIONS
   ============================================ */
.project-card .project-overlay {
    opacity: 0;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-card .project-actions {
    transform: translateY(20px);
    transition: transform 0.4s ease;
}

.project-card:hover .project-actions {
    transform: translateY(0);
}

/* ============================================
   IMAGE ZOOM ANIMATIONS
   ============================================ */
.zoom-hover {
    overflow: hidden;
}

.zoom-hover img {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.zoom-hover:hover img {
    transform: scale(1.1);
}

/* ============================================
   BUTTON RIPPLE EFFECT
   ============================================ */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease, opacity 0.6s ease;
    opacity: 0;
}

.ripple:active::after {
    width: 300px;
    height: 300px;
    opacity: 1;
    transition: 0s;
}

/* ============================================
   COUNTER ANIMATIONS
   ============================================ */
@keyframes countUp {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.count-animate {
    animation: countUp 0.6s ease forwards;
}

/* ============================================
   SKILL BAR ANIMATIONS
   ============================================ */
.skill-item .progress-bar {
    width: 0;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-item.animate .progress-bar {
    width: var(--skill-width);
}

/* ============================================
   NAVBAR LINK UNDERLINE ANIMATION
   ============================================ */
.navbar-nav .nav-link {
    position: relative;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 80%;
}

/* ============================================
   SOCIAL ICON ANIMATIONS
   ============================================ */
.social-link {
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.social-link:hover {
    transform: translateY(-4px) scale(1.1);
}

/* ============================================
   BACK TO TOP ANIMATION
   ============================================ */
.back-to-top {
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.back-to-top:hover {
    transform: translateY(-4px) scale(1.1);
}

/* ============================================
   FORM INPUT FOCUS ANIMATION
   ============================================ */
.form-control {
    transition: all 0.3s ease;
}

.form-control:focus {
    transform: scale(1.01);
}

/* ============================================
   TIMELINE ITEM ANIMATIONS
   ============================================ */
.timeline-item {
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.timeline-item:nth-child(1) {
    transition-delay: 0.1s;
}
.timeline-item:nth-child(2) {
    transition-delay: 0.2s;
}
.timeline-item:nth-child(3) {
    transition-delay: 0.3s;
}
.timeline-item:nth-child(4) {
    transition-delay: 0.4s;
}

/* ============================================
   GLASSMORPHISM HOVER ANIMATION
   ============================================ */
.glass-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow), var(--shadow-glass);
}

/* ============================================
   SECTION DIVIDER ANIMATION
   ============================================ */
.section-divider {
    position: relative;
    overflow: hidden;
}

.section-divider::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* ============================================
   CONTRIBUTION SQUARE ANIMATIONS
   ============================================ */
.contrib-square {
    transition: all 0.2s ease;
}

.contrib-square:hover {
    transform: scale(1.3);
    z-index: 2;
}

/* ============================================
   SCROLL PROGRESS BAR ANIMATION
   ============================================ */
.scroll-progress {
    transition: width 0.1s linear;
}

/* ============================================
   HERO TITLE ANIMATION
   ============================================ */
.hero-title .gradient-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease-in-out infinite;
}

/* ============================================
   CERTIFICATE CARD ANIMATION
   ============================================ */
.certificate-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.certificate-card:hover {
    transform: translateY(-6px) scale(1.01);
}

.certificate-card .certificate-image img {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.certificate-card:hover .certificate-image img {
    transform: scale(1.08);
}

/* ============================================
   STAT CARD ANIMATION
   ============================================ */
.stat-card {
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.stat-card:hover {
    transform: translateY(-6px) scale(1.02);
}

.stat-card .stat-number {
    display: inline-block;
    transition: all 0.3s ease;
}

.stat-card:hover .stat-number {
    transform: scale(1.1);
}

/* ============================================
   PROJECT FILTER BUTTON ANIMATION
   ============================================ */
.filter-btn {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.filter-btn:hover {
    transform: translateY(-2px);
}

.filter-btn.active {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(108, 60, 225, 0.3);
}

/* ============================================
   FLOATING CARD HOVER ANIMATION
   ============================================ */
.floating-card {
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.floating-card:hover {
    transform: scale(1.1) translateY(-8px);
    box-shadow: var(--shadow-glow), var(--shadow-glass);
}

/* ============================================
   TYPING CURSOR ANIMATION
   ============================================ */
.typing-cursor {
    animation: blink 1s step-end infinite;
}

/* ============================================
   PARTICLE CONTAINER
   ============================================ */
.particles-container .particle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid));
    opacity: 0.4;
    pointer-events: none;
    animation: particleFloat linear infinite;
}