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

/* Hero Slide Clip-path Reveal Animation */
.hero-slide {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    animation: heroClipReveal 1.2s cubic-bezier(0.77, 0, 0.175, 1) forwards;
}

@keyframes heroClipReveal {
    0% {
        clip-path: polygon(0 0, 0 0, 0 100%, 0 100%);
    }
    50% {
        clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
    }
    100% {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
}

/* Hero Contact Info Cinematic Entrance */
.hero-contact-info {
    opacity: 0;
    transform: translateY(30px);
    animation: heroContactEntrance 1s cubic-bezier(0.4, 0, 0.2, 1) 0.8s forwards;
}

@keyframes heroContactEntrance {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Divider Reveal */
.hero-divider {
    width: 0%;
    animation: heroDividerReveal 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.5s forwards;
}

@keyframes heroDividerReveal {
    to {
        width: 100%;
    }
}

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

/* Horizontal Stagger Animation for Benefit Cards */
.benefit-card {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.benefit-card.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.benefit-card:nth-child(1) { transition-delay: 0ms; }
.benefit-card:nth-child(2) { transition-delay: 100ms; }
.benefit-card:nth-child(3) { transition-delay: 200ms; }
.benefit-card:nth-child(4) { transition-delay: 300ms; }

/* Course Updates Vertical Feed Animation */
.modern-update-card {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.modern-update-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

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

/* Horizontal Mask Reveal for About Text */
.about-text {
    opacity: 1;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    transition: clip-path 0.8s cubic-bezier(0.77, 0, 0.175, 1), opacity 0.8s ease;
}

.about-text.animate-in {
    opacity: 1;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

/* Parallax Effect for Image Stack */
.image-stack {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.image-stack.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.image-back {
    transition: transform 0.1s ease-out;
}

.image-front {
    transition: transform 0.1s ease-out;
}

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

/* Scale-in Animation for Offer Visual */
.offers-visual {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.offers-visual.animate-in {
    opacity: 1;
    transform: scale(1);
}

/* Center Reveal for Offer Content */
.offers-content {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.offers-content.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Count-up Animation for Numbers */
.count-up {
    display: inline-block;
}

/* ========== PACKAGES/PRICING SECTION ANIMATIONS ========== */

/* Staggered Cards Animation */
.package-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.package-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.package-card:nth-child(1) { transition-delay: 0ms; }
.package-card:nth-child(2) { transition-delay: 150ms; }
.package-card:nth-child(3) { transition-delay: 300ms; }

/* Featured Card Scale Animation */
.package-card.featured {
    transform: translateY(30px) scale(0.95);
}

.package-card.featured.animate-in {
    transform: translateY(-10px) scale(1.05);
}

/* ========== TECHNOLOGY STACK SECTION ANIMATIONS ========== */

/* Staggered Grid Animation */
.course-card {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.course-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Alternating Direction Animation */
.course-card:nth-child(odd) {
    transform: translateX(-20px);
}

.course-card:nth-child(even) {
    transform: translateX(20px);
}

.course-card.animate-in {
    transform: translateX(0) translateY(0);
}

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

/* Horizontal Reveal for Event Cards */
.event-card-new {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.event-card-new.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.event-card-new:nth-child(1) { transition-delay: 0ms; }
.event-card-new:nth-child(2) { transition-delay: 200ms; }

/* ========== ADVANCED ANIMATIONS ========== */

/* Alternate Left/Right Entrance for Images */
.animate-left-entrance {
    opacity: 0;
    transform: translateX(-100px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-left-entrance.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.animate-right-entrance {
    opacity: 0;
    transform: translateX(100px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-right-entrance.animate-in {
    opacity: 1;
    transform: translateX(0);
}

/* Staggered Alternating Entrance */
.stagger-entrance:nth-child(odd) {
    opacity: 0;
    transform: translateX(-80px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.stagger-entrance:nth-child(even) {
    opacity: 0;
    transform: translateX(80px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.stagger-entrance.animate-in {
    opacity: 1;
    transform: translateX(0);
}

/* Typing Effect for Text */
.typing-text {
    overflow: hidden;
    white-space: nowrap;
    border-right: 3px solid #0F4C81;
    animation: typing 2s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0 }
    to { width: 100% }
}

@keyframes blink-caret {
    from, to { border-color: transparent }
    50% { border-color: #0F4C81 }
}

/* Dynamic Typing Effect (for multiple lines) */
.dynamic-typing {
    opacity: 0;
    overflow: hidden;
}

.dynamic-typing.animate-in {
    opacity: 1;
    animation: fadeInTyping 0.5s ease forwards;
}

@keyframes fadeInTyping {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Letter by Letter Animation */
.letter-by-letter {
    display: inline-block;
}

.letter-by-letter span {
    opacity: 0;
    display: inline-block;
    animation: letterFadeIn 0.1s ease forwards;
}

@keyframes letterFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Text Reveal with Blur */
.text-reveal-blur {
    opacity: 0;
    filter: blur(10px);
    transform: translateY(20px);
    transition: opacity 0.6s ease, filter 0.6s ease, transform 0.6s ease;
}

.text-reveal-blur.animate-in {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
}

/* Left to Right Text Reveal */
.text-slide-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.text-slide-left.animate-in {
    opacity: 1;
    transform: translateX(0);
}

/* Scale In Text */
.text-scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Image Zoom with Rotation */
.image-zoom-rotate {
    opacity: 0;
    transform: scale(0.5) rotate(-10deg);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.image-zoom-rotate.animate-in {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

/* Alternate Image Animations */
.image-animate-left {
    opacity: 0;
    transform: translateX(-100px) scale(0.9);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.image-animate-left.animate-in {
    opacity: 1;
    transform: translateX(0) scale(1);
}

.image-animate-right {
    opacity: 0;
    transform: translateX(100px) scale(0.9);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.image-animate-right.animate-in {
    opacity: 1;
    transform: translateX(0) scale(1);
}

/* Fade Up Animation */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Staggered fade up with delays */
.fade-up:nth-child(1) { transition-delay: 0ms; }
.fade-up:nth-child(2) { transition-delay: 100ms; }
.fade-up:nth-child(3) { transition-delay: 200ms; }
.fade-up:nth-child(4) { transition-delay: 300ms; }
.fade-up:nth-child(5) { transition-delay: 400ms; }

/* ========== INTERSECTION OBSERVER TRIGGER CLASS ========== */
.is-visible {
    /* This class is added by JavaScript when element enters viewport */
    opacity: 1;
    transform: none;
}

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

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

/* Simplify animations on mobile */
@media (max-width: 768px) {
    .benefit-card,
    .modern-update-card,
    .package-card,
    .course-card,
    .event-card-new {
        transition-duration: 0.4s;
    }
    
    .hero-slide {
        animation-duration: 0.8s;
    }
}