/* ===================================
   Page Load & Transition Animations
   =================================== */

/* Page Fade In */
@keyframes pageFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

body {
    animation: pageFadeIn 0.6s ease-out;
}

/* Staggered Content Animation */
.animate-stagger > * {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.animate-stagger > *:nth-child(1) { animation-delay: 0.1s; }
.animate-stagger > *:nth-child(2) { animation-delay: 0.2s; }
.animate-stagger > *:nth-child(3) { animation-delay: 0.3s; }
.animate-stagger > *:nth-child(4) { animation-delay: 0.4s; }
.animate-stagger > *:nth-child(5) { animation-delay: 0.5s; }
.animate-stagger > *:nth-child(6) { animation-delay: 0.6s; }
.animate-stagger > *:nth-child(7) { animation-delay: 0.7s; }
.animate-stagger > *:nth-child(8) { animation-delay: 0.8s; }

/* Smooth Page Transitions */
.page-transition {
    animation: pageSlideUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Loading Overlay - Optional */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #3B9DD5 0%, #7BC043 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-content {
    text-align: center;
    color: white;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 6px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem;
}

.loader-text {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* Reveal Animation on Scroll */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Floating Elements */
.floating {
    animation: floatUpDown 4s ease-in-out infinite;
}

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

.floating-slow {
    animation: floatUpDown 6s ease-in-out infinite;
}

/* Rotating Elements */
.rotate-on-hover {
    transition: transform 0.4s ease;
}

.rotate-on-hover:hover {
    transform: rotate(360deg);
}

/* Scale Animation */
.scale-on-hover {
    transition: transform 0.3s ease;
}

.scale-on-hover:hover {
    transform: scale(1.1);
}

/* Bounce on Hover */
.bounce-on-hover:hover {
    animation: bounceSmall 0.6s ease;
}

@keyframes bounceSmall {
    0%, 100% {
        transform: translateY(0);
    }
    25% {
        transform: translateY(-10px);
    }
    50% {
        transform: translateY(-5px);
    }
    75% {
        transform: translateY(-7px);
    }
}

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

@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 10px rgba(59, 157, 213, 0.3);
    }
    50% {
        box-shadow: 0 0 25px rgba(59, 157, 213, 0.6), 0 0 40px rgba(123, 192, 67, 0.4);
    }
}

/* Text Animation */
.text-gradient {
    background: linear-gradient(135deg, #3B9DD5, #7BC043);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-animated {
    background: linear-gradient(135deg, #3B9DD5, #7BC043, #3B9DD5);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
}

/* Particle Background Effect */
.particles-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: white;
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 15s infinite;
}

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(100%) scale(0);
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        opacity: 0;
        transform: translateY(-100vh) scale(1);
    }
}

.particle:nth-child(1) {
    left: 10%;
    animation-delay: 0s;
    animation-duration: 12s;
}

.particle:nth-child(2) {
    left: 25%;
    animation-delay: 2s;
    animation-duration: 14s;
}

.particle:nth-child(3) {
    left: 40%;
    animation-delay: 4s;
    animation-duration: 16s;
}

.particle:nth-child(4) {
    left: 55%;
    animation-delay: 1s;
    animation-duration: 13s;
}

.particle:nth-child(5) {
    left: 70%;
    animation-delay: 3s;
    animation-duration: 15s;
}

.particle:nth-child(6) {
    left: 85%;
    animation-delay: 5s;
    animation-duration: 17s;
}

/* Slide In From Sides */
.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out;
}

/* Button Ripple Effect */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::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%);
    transition: width 0.6s, height 0.6s;
}

.btn-ripple:active::after {
    width: 300px;
    height: 300px;
}

/* Accessibility - Respect Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .reveal-on-scroll {
        opacity: 1;
        transform: none;
    }
}