/* ======================================
   SMOOTH SCROLL & ANIMATIONS
   Using AOS (Animate On Scroll) library
   ====================================== */

/* Custom smooth scroll behavior */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Account for fixed navbar */
}

/* Enhance AOS animations */
[data-aos] {
    pointer-events: auto;
}

/* Custom fade animations */
@keyframes fadeInUp {
    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 scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Page transition overlay */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
        rgba(0, 255, 255, 0.1),
        rgba(255, 60, 172, 0.1));
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-transition::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center,
        rgba(0, 255, 255, 0.15) 0%,
        rgba(0, 0, 0, 0.8) 100%);
    z-index: 1;
}

.page-transition.active {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
}

.page-transition.fade-out {
    opacity: 0;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

#transition-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.page-transition-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
    animation: fadeInScale 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.page-transition-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--highlight);
    border-right-color: var(--highlight-secondary);
    border-radius: 50%;
    animation: spin 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
    margin: 0 auto;
    position: relative;
}

.page-transition-spinner::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid transparent;
    border-top-color: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    animation: spin 0.8s linear infinite reverse;
}

.transition-text {
    margin-top: 24px;
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    background: linear-gradient(90deg, var(--highlight), var(--highlight-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Smooth hover transitions */
a, button, .btn, .event-card, .stat-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Enhanced button hover effects */
.btn {
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

.btn::before {
    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;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

/* Event card smooth hover */
.event-card {
    transform: translateY(0);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.event-card:hover {
    transform: translateY(-12px);
}

/* Parallax effect for sections */
.parallax-section {
    transform-style: preserve-3d;
    perspective: 1000px;
}

/* Floating animation for elements */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

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

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

/* Scroll indicator */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--highlight), var(--highlight-secondary));
    z-index: 100;
    transform-origin: left;
    transition: transform 0.1s ease;
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--highlight), var(--highlight-secondary));
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 24px;
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 99;
    box-shadow: 0 4px 20px rgba(0, 255, 255, 0.3);
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 30px rgba(0, 255, 255, 0.5);
}

/* Smooth entrance for modal */
.modal {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.modal.show {
    opacity: 1;
    transform: scale(1);
}

/* Enhanced glassmorphism with animation */
.glass-morph {
    background: rgba(13, 13, 15, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-morph:hover {
    background: rgba(13, 13, 15, 0.7);
    border-color: var(--highlight);
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 255, 255, 0.2);
}

/* Reveal animation */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Link underline animation */
a.animated-link {
    position: relative;
    text-decoration: none;
}

a.animated-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--highlight);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Smooth page load */
body {
    animation: pageLoad 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 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;
    }

    .page-transition {
        transition: opacity 0.1s ease;
    }
}