/**
 * Animations & Effects
 */

/* ============ Fade & Slide Animations ============ */
.animate-fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

.animate-slide-up {
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

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

/* ============ Scroll Reveal ============ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============ Particle Effect ============ */
.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(45, 212, 191, 0.4);
    border-radius: 50%;
    animation: float 15s infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) translateX(50px);
        opacity: 0;
    }
}

/* ============ Glow Effect ============ */
.glow {
    position: relative;
}

.glow::after {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--accent), var(--accent-gold), var(--accent));
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s;
    filter: blur(10px);
}

.glow:hover::after {
    opacity: 0.5;
}

/* ============ Typing Effect ============ */
.typing {
    overflow: hidden;
    border-right: 2px solid var(--accent);
    white-space: nowrap;
    animation: typing 3s 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: var(--accent);
    }
}

/* ============ Pulse Effect ============ */
.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.4);
    }
    70% {
        box-shadow: 0 0 0 20px rgba(45, 212, 191, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(45, 212, 191, 0);
    }
}

/* ============ Shimmer Effect ============ */
.shimmer {
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* ============ 3D Hover Transform ============ */
.tilt-card {
    transform-style: preserve-3d;
    perspective: 1000px;
}

.tilt-card:hover {
    transform: rotateY(5deg) rotateX(5deg);
}

/* ============ Gradient Border Animation ============ */
.gradient-border {
    position: relative;
}

.gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: linear-gradient(
        90deg,
        var(--accent),
        var(--accent-gold),
        var(--accent)
    );
    background-size: 300% 100%;
    border-radius: inherit;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    animation: gradientMove 3s linear infinite;
}

@keyframes gradientMove {
    0% {
        background-position: 0% 50%;
    }
    100% {
        background-position: 300% 50%;
    }
}

/* ============ Counter Animation ============ */
.counter {
    display: inline-block;
}

/* ============ Stagger Children ============ */
.stagger-children > * {
    opacity: 0;
    transform: translateY(20px);
}

.stagger-children.active > * {
    animation: staggerIn 0.5s ease forwards;
}

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

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

/* ============ Page Transitions ============ */
.page-transition-enter {
    opacity: 0;
    transform: translateY(20px);
}

.page-transition-enter-active {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s, transform 0.3s;
}

.page-transition-exit {
    opacity: 1;
}

.page-transition-exit-active {
    opacity: 0;
    transition: opacity 0.3s;
}

/* ============ Button Loading State ============ */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ============ Smooth Section Transitions ============ */
section {
    transition: opacity 0.3s ease;
}

/* ============ Cursor Effects (Optional Enhancement) ============ */
.custom-cursor {
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s;
    mix-blend-mode: difference;
}

.custom-cursor.hover {
    transform: scale(2);
}

/* ============ Noise Texture Overlay ============ */
.noise-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9998;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%' height='100%' filter='url(%23noise)'/%3E%3C/svg%3E");
}