/*
 * ===================================================================
 * TRIPLEDOTS - ADVANCED SCROLL EFFECTS
 * Modern scrolling animations and effects for the wow factor
 * ===================================================================
*/

/* ===== SCROLL PROGRESS INDICATOR ===== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(90deg, var(--highlight-blue), #00d4ff, var(--primary-blue));
    z-index: 9999;
    transition: width 0.1s ease-out;
    box-shadow: 0 0 10px rgba(75, 172, 221, 0.5);
}

/* ===== PARALLAX CONTAINER ===== */
.parallax-container {
    position: relative;
    overflow: hidden;
}

.parallax-element {
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

/* ===== SCROLL REVEAL ANIMATIONS ===== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-100px);
    transition: opacity 1s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.scroll-reveal-right {
    opacity: 0;
    transform: translateX(100px);
    transition: opacity 1s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.scroll-reveal-scale {
    opacity: 0;
    transform: scale(0.8) rotateY(15deg);
    transition: opacity 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.scroll-reveal-scale.revealed {
    opacity: 1;
    transform: scale(1) rotateY(0deg);
}

/* ===== STAGGER ANIMATIONS ===== */
.scroll-stagger-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* Stagger delay classes */
.scroll-stagger-item:nth-child(1) { transition-delay: 0.1s; }
.scroll-stagger-item:nth-child(2) { transition-delay: 0.2s; }
.scroll-stagger-item:nth-child(3) { transition-delay: 0.3s; }
.scroll-stagger-item:nth-child(4) { transition-delay: 0.4s; }
.scroll-stagger-item:nth-child(5) { transition-delay: 0.5s; }
.scroll-stagger-item:nth-child(6) { transition-delay: 0.6s; }

/* ===== FLOATING ELEMENTS ===== */
.floating-element {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
    }
    25% { 
        transform: translateY(-10px) rotate(1deg); 
    }
    50% { 
        transform: translateY(-5px) rotate(0deg); 
    }
    75% { 
        transform: translateY(-15px) rotate(-1deg); 
    }
}

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

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

/* ===== HERO PARALLAX EFFECTS ===== */
.hero-bg-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    background: linear-gradient(135deg, 
        rgba(30, 36, 81, 0.95) 0%, 
        rgba(75, 172, 221, 0.1) 50%,
        rgba(30, 36, 81, 0.95) 100%);
    will-change: transform;
}

/* ===== HERO BACKGROUND MEDIA (CROSSFADE + FLAIR) ===== */
.hero-bg-media {
    position: absolute;
    inset: 0;
    z-index: -2;
    overflow: hidden;
    pointer-events: none;
}

.hero-bg-media .bg-item,
.hero-bg-media .bg-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease, transform 8s ease;
    background-size: cover;
    background-position: center center;
}

.hero-bg-media .bg-item.visible,
.hero-bg-media .bg-video.visible {
    opacity: 1;
}

.hero-bg-media .bg-item.visible {
    transform: scale(1.03);
}

.hero-bg-media .bg-video {
    object-fit: cover;
}

/* Small vignette to enhance flair during transitions */
.hero-bg-media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(0,0,0,0.0) 40%, rgba(0,0,0,0.18) 100%);
    pointer-events: none;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(75, 172, 221, 0.6);
    border-radius: 50%;
    animation: particle-float 15s infinite linear;
}

@keyframes particle-float {
    0% {
        transform: translateY(100vh) translateX(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    90% {
        opacity: 0.8;
    }
    100% {
        transform: translateY(-100px) translateX(100px) rotate(360deg);
        opacity: 0;
    }
}

/* ===== TEXT WAVE ANIMATION (DISABLED) ===== */
.wave-text {
    display: inline-block;
}

.wave-text .char {
    display: inline-block;
    /* Wave animation disabled for professional appearance */
    animation: none;
}

/* Wave animation keyframes (disabled)
@keyframes wave {
    0%, 60%, 100% {
        transform: initial;
    }
    30% {
        transform: translateY(-15px);
    }
}
*/

/* ===== MAGNETIC HOVER EFFECTS ===== */
.magnetic-element {
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.magnetic-element:hover {
    transform: scale(1.05) translateY(-5px);
}

/* ===== SCROLL TRIGGERED COUNTERS ===== */
.counter-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--highlight-blue);
    transition: color 0.3s ease;
}

.counter-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

/* ===== ADVANCED CARD HOVER EFFECTS ===== */
.enhanced-card {
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    overflow: hidden;
}

.enhanced-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(75, 172, 221, 0.1) 50%, transparent 100%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.enhanced-card:hover {
    transform: rotateY(5deg) rotateX(5deg) translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.enhanced-card:hover::before {
    transform: translateX(100%);
}

/* Disable enhanced hover effects specifically for course cards */
#courses .card.enhanced-card:hover,
#courses .enhanced-card:hover {
    transform: none;
    box-shadow: none;
}

#courses .card.enhanced-card::before,
#courses .enhanced-card::before {
    display: none;
}

/* Disable magnetic effects for course cards to maintain grid alignment */
#courses .card.magnetic-element,
#courses .magnetic-element {
    transition: none !important;
    transform: none !important;
}

#courses .card.magnetic-element:hover,
#courses .magnetic-element:hover {
    transform: none !important;
}

/* ===== SECTION ENTRANCE ANIMATIONS ===== */
.section-entrance {
    opacity: 0;
    transform: translateY(100px);
    transition: opacity 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.section-entrance.in-view {
    opacity: 1;
    transform: translateY(0);
}

/* ===== SMOOTH SCROLL SNAP (SOFTENED) ===== */
html.scroll-snap {
    scroll-snap-type: y proximity;
}

.snap-section {
    scroll-snap-align: start;
    scroll-snap-stop: normal;
    /* Softer snapping - less aggressive */
}

/* ===== GLITCH EFFECT FOR HEADINGS ===== */
.glitch-text {
    position: relative;
    display: inline-block;
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    pointer-events: none;
}

.glitch-text::before {
    animation: glitch-1 0.3s infinite;
    color: #ff00ff;
    z-index: -1;
}

.glitch-text::after {
    animation: glitch-2 0.3s infinite;
    color: #00ffff;
    z-index: -2;
}

@keyframes glitch-1 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
}

@keyframes glitch-2 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(2px, 2px); }
    40% { transform: translate(2px, -2px); }
    60% { transform: translate(-2px, 2px); }
    80% { transform: translate(-2px, -2px); }
}

/* ===== SCROLL VELOCITY BLUR ===== */
.velocity-blur {
    transition: filter 0.3s ease-out;
}

.velocity-blur.scrolling-fast {
    filter: blur(1px);
}

/* ===== MORPHING BACKGROUND ===== */
.morphing-bg {
    background: linear-gradient(45deg, 
        var(--primary-blue), 
        var(--highlight-blue), 
        var(--primary-blue), 
        var(--highlight-blue));
    background-size: 400% 400%;
    animation: morphing 15s ease infinite;
}

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

/* ===== 3D FLIP CARDS ===== */
.flip-card {
    perspective: 1000px;
    width: 100%;
    height: 200px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s;
    transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.flip-card-back {
    transform: rotateY(180deg);
}

/* ===== RESPONSIVE ADJUSTMENTS ===== */
@media (max-width: 1024px) {
    /* Hide floating elements on tablets to prevent horizontal scrolling */
    .loader-floating-elements,
    .floating-code,
    .floating-element,
    .floating-element-slow {
        display: none;
    }
    
    /* Ensure preloader content stays contained */
    .loader-content {
        max-width: 90%;
        padding: 0 20px;
    }
    
    .loader-text-container {
        max-width: 500px;
        padding: 0 15px;
    }
}

@media (max-width: 768px) {
    .scroll-reveal,
    .scroll-reveal-left,
    .scroll-reveal-right,
    .scroll-reveal-scale {
        transform: none;
        opacity: 1;
        transition: none;
    }
    
    /* Enhanced card hover effects already disabled */
    .enhanced-card:hover {
        transform: none;
    }
    
    .particle {
        display: none;
    }
    
    .scroll-progress {
        height: 3px;
    }
    
    /* Mobile loader optimizations */
    .loader-title {
        font-size: 1.8rem;
    }
    
    .loader-tagline {
        font-size: 1rem;
        padding: 0 20px;
    }
    
    .loader-logo {
        width: 100px;
        height: 100px;
    }
    
    .loader-logo-pulse {
        width: 100px;
        height: 100px;
    }
    
    .floating-code {
        font-size: 1rem;
        display: none; /* Also hide on mobile for performance */
    }
    
    /* Additional mobile loader optimizations */
    .loader-content {
        max-width: 95%;
        padding: 0 15px;
    }
    
    .loader-text-container {
        max-width: 100%;
        padding: 0 10px;
    }
    
    /* Ensure no horizontal overflow on small screens */
    .page-loader {
        overflow-x: hidden;
    }
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-reveal,
    .scroll-reveal-left,
    .scroll-reveal-right,
    .scroll-reveal-scale {
        opacity: 1;
        transform: none;
    }
    
    .floating-element,
    .floating-element-slow {
        animation: none;
    }
}

/* ===== SMOOTH LOADING ANIMATION ===== */
/* Prevent flash of content before loader appears */
body:not(.loader-ready) {
    overflow: hidden;
}

body:not(.loader-ready) {
    overflow-x: hidden; /* Prevent horizontal scroll during loading */
}

.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--highlight-blue) 100%);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 0.8s ease-out, visibility 0.8s ease-out;
    overflow: hidden;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
    color: white;
    animation: zoomInExcite 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
    position: relative;
    z-index: 2;
}

/* Logo with pulse effect */
.loader-logo-container {
    position: relative;
    margin-bottom: 30px;
}

.loader-logo {
    width: 120px;
    height: 120px;
    animation: logoFloat 3s ease-in-out infinite;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.3));
}

.loader-logo-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.loader-logo-pulse::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite 0.5s;
}

/* Text container */
.loader-text-container {
    max-width: 600px;
    margin: 0 auto;
}

.loader-title {
    font-size: 2.2rem;
    font-weight: bold;
    margin: 0 0 20px 0;
    animation: slideInUp 1s ease-out 0.5s both;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    min-height: 60px;
    transition: opacity 0.3s ease;
}

.loader-title.almost-ready {
    font-size: 2.5rem;
    animation: celebration 0.6s ease-out;
}

/* Rotating taglines */
.loader-taglines {
    position: relative;
    height: 60px;
    margin-bottom: 40px;
    overflow: hidden;
}

.loader-tagline {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    font-size: 1.1rem;
    margin: 0;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    letter-spacing: 1px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    line-height: 1.4;
}

.loader-tagline.active {
    opacity: 1;
    transform: translateY(0);
}

/* Progress bar */
.loader-progress-container {
    margin-top: 30px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.loader-progress-bar {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.loader-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4BACDD, #fff, #4BACDD);
    border-radius: 10px;
    width: 0%;
    transition: width 0.3s ease;
    position: relative;
}

.loader-progress-fill::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 1.5s infinite;
}

.loader-percentage {
    font-size: 1rem;
    font-weight: bold;
    min-width: 45px;
    text-align: right;
}

/* Floating code elements */
.loader-floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden; /* Ensure floating elements don't cause overflow */
}

.floating-code {
    position: absolute;
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    font-weight: bold;
    color: rgba(255, 255, 255, 0.15);
    animation: floatCode 8s linear infinite;
}

.floating-code:nth-child(1) { left: 10%; animation-delay: 0s; }
.floating-code:nth-child(2) { left: 25%; animation-delay: -2s; }
.floating-code:nth-child(3) { left: 40%; animation-delay: -4s; }
.floating-code:nth-child(4) { right: 25%; animation-delay: -1s; }
.floating-code:nth-child(5) { right: 10%; animation-delay: -3s; }
.floating-code:nth-child(6) { right: 40%; animation-delay: -5s; }

/* Animations */
@keyframes logoFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(5deg); }
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.7; }
}

@keyframes celebration {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); color: #4BACDD; }
    100% { transform: scale(1); }
}

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

@keyframes floatCode {
    0% { 
        transform: translateY(100vh) rotate(0deg); 
        opacity: 0; 
    }
    10% { 
        opacity: 1; 
    }
    90% { 
        opacity: 1; 
    }
    100% { 
        transform: translateY(-100px) rotate(360deg); 
        opacity: 0; 
    }
}

/* ===== ABOUT IMAGE ENTRANCE (subtle & professional) ===== */
.about-image-entrance {
    display: inline-block;
    overflow: hidden;
    border-radius: 10px;
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1), 
                box-shadow 0.4s ease,
                filter 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.about-image-entrance.revealed {
    opacity: 1;
    transform: translateY(0);
}

.about-image-entrance img {
    display: block;
    width: 100%;
    height: auto;
    transition: transform 0.3s ease;
}

.about-image-entrance:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(75, 172, 221, 0.15);
    filter: brightness(1.05);
}

.about-image-entrance:hover img {
    transform: scale(1.02);
}

@keyframes smoothFillCircle {
    0% { background: conic-gradient(white 0deg, transparent 0deg); }
    5% { background: conic-gradient(white 18deg, transparent 18deg); }
    10% { background: conic-gradient(white 36deg, transparent 36deg); }
    15% { background: conic-gradient(white 54deg, transparent 54deg); }
    20% { background: conic-gradient(white 72deg, transparent 72deg); }
    25% { background: conic-gradient(white 90deg, transparent 90deg); }
    30% { background: conic-gradient(white 108deg, transparent 108deg); }
    35% { background: conic-gradient(white 126deg, transparent 126deg); }
    40% { background: conic-gradient(white 144deg, transparent 144deg); }
    45% { background: conic-gradient(white 162deg, transparent 162deg); }
    50% { background: conic-gradient(white 180deg, transparent 180deg); }
    55% { background: conic-gradient(white 198deg, transparent 198deg); }
    60% { background: conic-gradient(white 216deg, transparent 216deg); }
    65% { background: conic-gradient(white 234deg, transparent 234deg); }
    70% { background: conic-gradient(white 252deg, transparent 252deg); }
    75% { background: conic-gradient(white 270deg, transparent 270deg); }
    80% { background: conic-gradient(white 288deg, transparent 288deg); }
    85% { background: conic-gradient(white 306deg, transparent 306deg); }
    90% { background: conic-gradient(white 324deg, transparent 324deg); }
    95% { background: conic-gradient(white 342deg, transparent 342deg); }
    100% { background: conic-gradient(white 360deg, transparent 360deg); }
}

@keyframes zoomInExcite {
    0% {
        transform: scale(0.3) rotate(-5deg);
        opacity: 0;
    }
    40% {
        transform: scale(1.05) rotate(1deg);
    }
    70% {
        transform: scale(0.98) rotate(-0.5deg);
    }
    100% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}

@keyframes slideInUp {
    0% {
        transform: translateY(50px);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Removed old spin and pulse animations - using fillCircle instead */