/* ============================= */
/* PREMIUM ANIMATIONS - ALL PAGES */
/* ============================= */

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

@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 zoomIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

/* ========== HOVER EFFECTS ========== */

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

@keyframes lift {
    from {
        transform: translateY(0);
        box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    }
    to {
        transform: translateY(-8px);
        box-shadow: 0 15px 40px rgba(0,0,0,0.15);
    }
}

@keyframes glow {
    from {
        box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    }
    to {
        box-shadow: 0 0 30px rgba(0, 102, 204, 0.4), 0 5px 20px rgba(0,0,0,0.08);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* ========== BUTTON ANIMATIONS ========== */

@keyframes buttonPulse {
    0% {
        box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
    }
    50% {
        box-shadow: 0 4px 25px rgba(76, 175, 80, 0.5);
    }
    100% {
        box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
    }
}

@keyframes buttonPress {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(2px);
    }
    100% {
        transform: translateY(0);
    }
}

@keyframes ripple {
    0% {
        width: 0;
        height: 0;
        opacity: 1;
    }
    100% {
        width: 300px;
        height: 300px;
        opacity: 0;
    }
}

/* ========== SCROLL ANIMATIONS ========== */

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

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

@keyframes parallax {
    from {
        transform: translateY(0);
    }
    to {
        transform: translateY(20px);
    }
}

/* ========== CARD ANIMATIONS ========== */

@keyframes cardFlip {
    0% {
        transform: rotateY(0);
    }
    100% {
        transform: rotateY(10deg);
    }
}

@keyframes cardBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

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

/* ========== SKILL BAR ANIMATIONS ========== */

@keyframes progressBar {
    0% {
        width: 0;
        opacity: 0;
    }
    100% {
        width: 100%;
        opacity: 1;
    }
}

@keyframes fillProgress {
    from {
        width: 0;
    }
    to {
        width: inherit;
    }
}

@keyframes skillPulse {
    0%, 100% {
        background-position: 0%;
    }
    50% {
        background-position: 100%;
    }
}

/* ========== ICON ANIMATIONS ========== */

@keyframes iconSpin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes iconBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes iconPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

/* ========== TEXT ANIMATIONS ========== */

@keyframes textGlow {
    0%, 100% {
        text-shadow: 0 0 5px rgba(0, 102, 204, 0);
    }
    50% {
        text-shadow: 0 0 15px rgba(0, 102, 204, 0.5);
    }
}

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

@keyframes letterSpacing {
    from {
        letter-spacing: -0.5em;
        opacity: 0;
    }
    to {
        letter-spacing: normal;
        opacity: 1;
    }
}

/* ========== GRADIENT ANIMATIONS ========== */

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes gradientWave {
    0% {
        background-position: 0% center;
    }
    100% {
        background-position: 200% center;
    }
}

/* ========== LOADING ANIMATIONS ========== */

@keyframes skeleton {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

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

/* ========== TIMELINE ANIMATIONS ========== */

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

@keyframes dotPulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(0, 102, 204, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(0, 102, 204, 0);
    }
}

/* ========== NAVIGATION ANIMATIONS ========== */

@keyframes navSlide {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes underlineSlide {
    0% {
        width: 0;
        left: 0;
    }
    100% {
        width: 100%;
        left: 0;
    }
}

/* ========== APPLICATION CLASSES ========== */

/* Page Load Animations */
.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in-down {
    animation: fadeInDown 0.6s ease-out;
}

.fade-in-left {
    animation: fadeInLeft 0.6s ease-out;
}

.fade-in-right {
    animation: fadeInRight 0.6s ease-out;
}

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

.slide-in-up {
    animation: slideInUp 0.7s ease-out;
}

/* Stagger animations for lists */
.stagger-item {
    animation: fadeInUp 0.6s ease-out backwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.1s; }
.stagger-item:nth-child(2) { animation-delay: 0.2s; }
.stagger-item:nth-child(3) { animation-delay: 0.3s; }
.stagger-item:nth-child(4) { animation-delay: 0.4s; }
.stagger-item:nth-child(5) { animation-delay: 0.5s; }
.stagger-item:nth-child(6) { animation-delay: 0.6s; }

/* Card Hover Effects */
.card-hover {
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.card-hover:hover {
    animation: lift 0.3s ease-out forwards;
}

.card-glow:hover {
    animation: glow 0.3s ease-out forwards;
}

.card-scale:hover {
    animation: scaleUp 0.3s ease-out forwards;
}

.card-flip:hover {
    animation: cardFlip 0.3s ease-out forwards;
}

/* Button Animations */
.btn-animated {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-animated::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%);
}

.btn-animated:active::before {
    animation: ripple 0.6s ease-out;
}

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

.btn-pulse:hover {
    animation: none;
}

/* Smooth Link Hover */
.link-animated {
    position: relative;
    transition: color 0.3s ease;
}

.link-animated::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #0066cc, #2196F3);
    transition: width 0.3s ease;
}

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

/* Mobile-Optimized Animations */
@media (max-width: 768px) {
    /* Reduce animation duration on mobile for better performance */
    .fade-in-up,
    .fade-in-down,
    .fade-in-left,
    .fade-in-right,
    .zoom-in,
    .slide-in-up {
        animation-duration: 0.4s;
    }

    /* Disable some animations on mobile to save battery */
    .card-hover:hover {
        animation: none;
        transform: translateY(-2px);
    }

    .btn-pulse {
        animation: none;
    }

    /* Reduce stagger delay on mobile */
    .stagger-item {
        animation-duration: 0.4s;
    }

    .stagger-item:nth-child(1) { animation-delay: 0.05s; }
    .stagger-item:nth-child(2) { animation-delay: 0.1s; }
    .stagger-item:nth-child(3) { animation-delay: 0.15s; }
    .stagger-item:nth-child(4) { animation-delay: 0.2s; }
    .stagger-item:nth-child(5) { animation-delay: 0.25s; }
    .stagger-item:nth-child(6) { animation-delay: 0.3s; }

    /* Smooth transitions instead of complex animations */
    .card-glow:hover {
        animation: none;
        box-shadow: 0 8px 25px rgba(0,0,0,0.12);
    }

    .card-scale:hover {
        animation: none;
        transform: scale(1.02);
    }

    /* Disable parallax on mobile */
    .parallax {
        transform: none !important;
    }
}

/* Desktop Enhanced Animations */
@media (min-width: 769px) {
    /* Enable full animations on desktop */
    .card-hover {
        cursor: pointer;
    }

    .card-hover:hover {
        animation: lift 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    }

    .card-glow:hover {
        animation: glow 0.4s ease-out forwards;
    }

    .card-scale:hover {
        animation: scaleUp 0.3s ease-out forwards;
    }

    /* Desktop parallax effect */
    .parallax {
        position: relative;
    }

    .parallax-content {
        will-change: transform;
    }

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

    /* Text animations on hover */
    .text-animate:hover {
        animation: textGlow 0.6s ease-in-out;
    }
}

/* ========== PERFORMANCE OPTIMIZATIONS ========== */

/* Use GPU acceleration for smooth animations */
.animate-gpu {
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

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

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

.hero-image {
    animation: fadeInRight 0.8s ease-out;
}

.hero-title {
    animation: fadeInDown 0.8s ease-out;
}

.hero-subtitle {
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero-description {
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.hero-buttons {
    animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

/* ========== SECTION ANIMATIONS ========== */

.section {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.section:nth-of-type(1) { animation-delay: 0s; }
.section:nth-of-type(2) { animation-delay: 0.1s; }
.section:nth-of-type(3) { animation-delay: 0.2s; }
.section:nth-of-type(4) { animation-delay: 0.3s; }
.section:nth-of-type(5) { animation-delay: 0.4s; }

/* ========== EXPERTISE CARDS ANIMATIONS ========== */

.expertise-card {
    animation: fadeInUp 0.6s ease-out backwards;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.expertise-card:nth-child(1) { animation-delay: 0.1s; }
.expertise-card:nth-child(2) { animation-delay: 0.2s; }
.expertise-card:nth-child(3) { animation-delay: 0.3s; }
.expertise-card:nth-child(4) { animation-delay: 0.4s; }

.expertise-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.expertise-card .icon {
    transition: all 0.3s ease;
}

.expertise-card:hover .icon {
    animation: iconBounce 0.6s ease-in-out;
}

/* ========== PROJECT CARDS ANIMATIONS ========== */

.project-card {
    animation: fadeInUp 0.6s ease-out backwards;
    overflow: hidden;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }
.project-card:nth-child(5) { animation-delay: 0.5s; }
.project-card:nth-child(6) { animation-delay: 0.6s; }

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.project-card img {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

/* ========== SKILL CARDS ANIMATIONS ========== */

.skill-card {
    animation: fadeInUp 0.6s ease-out backwards;
}

.skill-card:nth-child(1) { animation-delay: 0.1s; }
.skill-card:nth-child(2) { animation-delay: 0.2s; }

.skill-progress-bar {
    animation: progressBar 1s ease-out forwards;
    position: relative;
    overflow: hidden;
}

.skill-progress-bar::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 2s infinite;
}

/* ========== TIMELINE ANIMATIONS ========== */

.timeline-item {
    animation: fadeInUp 0.6s ease-out backwards;
}

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

.timeline-dot {
    animation: dotPulse 2s ease-in-out infinite;
}

.timeline-content {
    transition: all 0.3s ease;
}

.timeline-content:hover {
    transform: translateX(5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

/* ========== BUTTON ANIMATIONS ========== */

.btn-download,
.btn-whatsapp,
.btn-view-cv {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.btn-download:hover,
.btn-whatsapp:hover,
.btn-view-cv:hover {
    animation: lift 0.3s ease-out forwards;
}

.btn-download::after,
.btn-whatsapp::after,
.btn-view-cv::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.btn-download:active::after,
.btn-whatsapp:active::after,
.btn-view-cv:active::after {
    animation: ripple 0.6s ease-out;
}

/* ========== STAT CARDS ANIMATIONS ========== */

.stat-card {
    animation: fadeInUp 0.6s ease-out backwards;
    transition: all 0.3s ease;
}

.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.3s; }
.stat-card:nth-child(4) { animation-delay: 0.4s; }

.stat-card h3 {
    transition: all 0.3s ease;
}

.stat-card:hover h3 {
    animation: iconBounce 0.6s ease-in-out;
}

/* ========== INFO CARDS ANIMATIONS ========== */

.info-card {
    animation: fadeInUp 0.6s ease-out backwards;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.info-card:nth-child(1) { animation-delay: 0.1s; }
.info-card:nth-child(2) { animation-delay: 0.2s; }
.info-card:nth-child(3) { animation-delay: 0.3s; }

.info-card:hover {
    animation: lift 0.3s ease-out forwards;
}

.info-card .icon {
    transition: all 0.3s ease;
}

.info-card:hover .icon {
    animation: iconPulse 0.6s ease-in-out;
}

/* ========== CONTACT ITEMS ANIMATIONS ========== */

.contact-item {
    animation: fadeInLeft 0.6s ease-out backwards;
    transition: all 0.3s ease;
}

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

.contact-item:hover {
    transform: translateX(8px);
}

.contact-item i {
    transition: all 0.3s ease;
}

.contact-item:hover i {
    animation: iconSpin 0.6s ease-out;
}

/* ========== CV PREVIEW ANIMATIONS ========== */

.cv-preview-container {
    animation: fadeInUp 0.8s ease-out;
}

.cv-preview {
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: box-shadow 0.3s ease;
}

.cv-preview:hover {
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

/* ========== SCROLL REVEAL ANIMATIONS ========== */

.scroll-reveal {
    opacity: 0;
    will-change: opacity, transform;
}

.scroll-reveal.active {
    animation: fadeInUp 0.6s ease-out forwards;
}

.scroll-reveal-left {
    opacity: 0;
}

.scroll-reveal-left.active {
    animation: fadeInLeft 0.6s ease-out forwards;
}

.scroll-reveal-right {
    opacity: 0;
}

.scroll-reveal-right.active {
    animation: fadeInRight 0.6s ease-out forwards;
}

/* ========== NAVBAR ANIMATIONS ========== */

.navbar {
    animation: navSlide 0.5s ease-out;
}

.nav-link {
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #0066cc, #2196F3);
    transition: width 0.3s ease;
}

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

.nav-link.active::after {
    width: 100%;
}

/* ========== FOOTER ANIMATIONS ========== */

.footer {
    animation: fadeInUp 0.6s ease-out;
}

/* ========== ANIMATION UTILITY CLASSES ========== */

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

.animate-bounce {
    animation: bounce 1s ease-in-out infinite;
}

/* Pulse animation */
.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* Spin animation */
.animate-spin {
    animation: iconSpin 2s linear infinite;
}

/* Wiggle animation */
@keyframes wiggle {
    0%, 100% {
        transform: rotate(0deg);
    }
    25% {
        transform: rotate(-2deg);
    }
    75% {
        transform: rotate(2deg);
    }
}

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

/* Flash animation */
@keyframes flash {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.animate-flash {
    animation: flash 1s ease-in-out infinite;
}

/* Heartbeat animation */
@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    10%, 30% {
        transform: scale(0.9);
    }
    20%, 50%, 80%, 100% {
        transform: scale(1);
    }
}

.animate-heartbeat {
    animation: heartbeat 1.3s ease-in-out infinite;
}

/* Swing animation */
@keyframes swing {
    0%, 100% {
        transform: rotate(0deg);
        transform-origin: top center;
    }
    20% {
        transform: rotate(15deg);
    }
    40% {
        transform: rotate(-10deg);
    }
    60% {
        transform: rotate(5deg);
    }
    80% {
        transform: rotate(-5deg);
    }
}

.animate-swing {
    animation: swing 1s ease-in-out;
    transform-origin: top center;
}