/* Animations and Transitions */
/* Smooth scrolling for anchor links */
html {
    scroll-behavior: smooth;
}

/* Global transition for interactive elements */
a, button, input, select, textarea, .btn, .card, .nav-link {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hover animations for cards and interactive elements */
.about-card:hover,
.week-card:hover,
.testimonial-card:hover,
.article-card:hover,
.featured-article:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Button hover animations */
.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

/* Navigation link hover effects */
.nav-link:hover {
    transform: translateY(-1px);
}

.nav-link::after {
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hero section animations */
.hero-title {
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-subtitle {
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-buttons {
    animation: fadeInUp 1s ease-out 0.6s both;
}

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

.hero-graphic i:nth-child(2) {
    animation-delay: 2s;
}

.hero-graphic i:nth-child(3) {
    animation-delay: 4s;
}

/* Section header animations */
.section-header {
    animation: fadeInUp 0.8s ease-out both;
}

.section-header h2 {
    animation: slideInLeft 0.8s ease-out 0.2s both;
}

.section-header p {
    animation: slideInRight 0.8s ease-out 0.4s both;
}

/* Card animations with staggered delays */
.about-card {
    animation: fadeInUp 0.8s ease-out both;
}

.about-card:nth-child(1) { animation-delay: 0.1s; }
.about-card:nth-child(2) { animation-delay: 0.3s; }
.about-card:nth-child(3) { animation-delay: 0.5s; }

.week-card {
    animation: fadeInUp 0.8s ease-out both;
}

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

.program-features .feature {
    animation: fadeInUp 0.8s ease-out both;
}

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

.testimonial-card {
    animation: fadeInUp 0.8s ease-out both;
}

.testimonial-card:nth-child(1) { animation-delay: 0.1s; }
.testimonial-card:nth-child(2) { animation-delay: 0.3s; }
.testimonial-card:nth-child(3) { animation-delay: 0.5s; }

/* Icon animations */
.card-icon {
    animation: scaleIn 0.6s ease-out 0.3s both;
}

.feature i {
    animation: bounceIn 0.8s ease-out 0.5s both;
}

/* Social media link animations */
.social-links a {
    animation: fadeInUp 0.8s ease-out both;
}

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

/* Form animations */
.form-section {
    animation: slideUp 0.8s ease-out both;
}

.form-section:nth-child(1) { animation-delay: 0.1s; }
.form-section:nth-child(2) { animation-delay: 0.2s; }
.form-section:nth-child(3) { animation-delay: 0.3s; }
.form-section:nth-child(4) { animation-delay: 0.4s; }
.form-section:nth-child(5) { animation-delay: 0.5s; }

/* Success message animations */
.success-message {
    animation: bounceIn 0.6s ease-out both;
}

.success-icon {
    animation: scaleIn 0.6s ease-out 0.2s both;
}

/* Loading animations */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        transform: translate3d(0, -30px, 0);
    }
    70% {
        transform: translate3d(0, -15px, 0);
    }
    90% {
        transform: translate3d(0, -4px, 0);
    }
}

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

@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 slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes scaleOut {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0.5);
    }
}

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

@keyframes bounceOut {
    0% {
        transform: scale(1);
    }
    25% {
        transform: scale(0.95);
    }
    50% {
        opacity: 1;
        transform: scale(1.1);
    }
    100% {
        opacity: 0;
        transform: scale(0.3);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes zoomOut {
    from {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0;
    }
    100% {
        opacity: 0;
        transform: scale(0.3);
    }
}

@keyframes flipInX {
    from {
        opacity: 0;
        transform: perspective(400px) rotateX(90deg);
    }
    40% {
        transform: perspective(400px) rotateX(-20deg);
    }
    60% {
        transform: perspective(400px) rotateX(10deg);
    }
    80% {
        transform: perspective(400px) rotateX(-5deg);
    }
    100% {
        opacity: 1;
        transform: perspective(400px) rotateX(0deg);
    }
}

@keyframes flipInY {
    from {
        opacity: 0;
        transform: perspective(400px) rotateY(90deg);
    }
    40% {
        transform: perspective(400px) rotateY(-20deg);
    }
    60% {
        transform: perspective(400px) rotateY(10deg);
    }
    80% {
        transform: perspective(400px) rotateY(-5deg);
    }
    100% {
        opacity: 1;
        transform: perspective(400px) rotateY(0deg);
    }
}

@keyframes lightSpeedIn {
    from {
        opacity: 0;
        transform: translate3d(100%, 0, 0) skewX(-30deg);
    }
    60% {
        opacity: 1;
        transform: translate3d(-20%, 0, 0) skewX(30deg);
    }
    80% {
        transform: translate3d(0%, 0, 0) skewX(-15deg);
    }
    100% {
        opacity: 1;
        transform: translate3d(0%, 0, 0) skewX(0deg);
    }
}

@keyframes lightSpeedOut {
    from {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translate3d(100%, 0, 0) skewX(30deg);
    }
}

/* Hover effect animations */
.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

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

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
}

/* Focus animations for accessibility */
.btn:focus,
.nav-link:focus,
input:focus,
select:focus,
textarea:focus {
    animation: pulse 0.3s ease-in-out;
}

/* Error state animations */
.error-shake {
    animation: shake 0.5s ease-in-out;
}

/* Success state animations */
.success-bounce {
    animation: bounce 0.6s ease-in-out;
}

/* Loading state animations */
.loading-pulse {
    animation: pulse 1.5s ease-in-out infinite;
}

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

/* Intersection Observer animations */
.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.fade-in-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animations for lists */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.stagger-item.visible {
    opacity: 1;
    transform: translateY(0);
}

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

/* Smooth page transitions */
.page-transition {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.page-transition.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Parallax effect for background elements */
.parallax-bg {
    transform: translateZ(0);
    will-change: transform;
}

/* Hover state transitions */
.hover-smooth {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-smooth:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* Text reveal animations */
.text-reveal {
    overflow: hidden;
}

.text-reveal span {
    display: inline-block;
    transform: translateY(100%);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.text-reveal.visible span {
    transform: translateY(0);
}

/* Image reveal animations */
.image-reveal {
    overflow: hidden;
}

.image-reveal img {
    transform: scale(1.1);
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Counter animation */
.counter {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s ease-out;
}

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

/* Progress bar animation */
.progress-bar {
    width: 0%;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-bar.animate {
    width: 100%;
}

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

@media (max-width: 768px) {
    .hero-title {
        animation-delay: 0.1s;
    }
    
    .hero-subtitle {
        animation-delay: 0.2s;
    }
    
    .hero-buttons {
        animation-delay: 0.3s;
    }
    
    .about-card,
    .week-card,
    .testimonial-card {
        animation-delay: 0.1s;
    }
}