/*
 * ANIMATIONS & SCROLL EFFECTS
 * Version: 2.0
 * Lightweight scroll-triggered animations using CSS + Intersection Observer
 */

/* ===== SCROLL REVEAL ANIMATIONS ===== */

/* Base state for animated elements */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays for child elements */
[data-animate-stagger]>* {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

[data-animate-stagger].is-visible>*:nth-child(1) {
    transition-delay: 0s;
    opacity: 1;
    transform: translateY(0);
}

[data-animate-stagger].is-visible>*:nth-child(2) {
    transition-delay: 0.1s;
    opacity: 1;
    transform: translateY(0);
}

[data-animate-stagger].is-visible>*:nth-child(3) {
    transition-delay: 0.2s;
    opacity: 1;
    transform: translateY(0);
}

[data-animate-stagger].is-visible>*:nth-child(4) {
    transition-delay: 0.3s;
    opacity: 1;
    transform: translateY(0);
}

[data-animate-stagger].is-visible>*:nth-child(5) {
    transition-delay: 0.4s;
    opacity: 1;
    transform: translateY(0);
}

[data-animate-stagger].is-visible>*:nth-child(6) {
    transition-delay: 0.5s;
    opacity: 1;
    transform: translateY(0);
}

[data-animate-stagger].is-visible>*:nth-child(7) {
    transition-delay: 0.6s;
    opacity: 1;
    transform: translateY(0);
}

[data-animate-stagger].is-visible>*:nth-child(8) {
    transition-delay: 0.7s;
    opacity: 1;
    transform: translateY(0);
}

/* Fade variations */
[data-animate="fade-up"] {
    transform: translateY(40px);
}

[data-animate="fade-down"] {
    transform: translateY(-40px);
}

[data-animate="fade-left"] {
    transform: translateX(40px);
}

[data-animate="fade-right"] {
    transform: translateX(-40px);
}

[data-animate="scale-up"] {
    transform: scale(0.9);
}

[data-animate="fade-up"].is-visible,
[data-animate="fade-down"].is-visible,
[data-animate="fade-left"].is-visible,
[data-animate="fade-right"].is-visible {
    transform: translate(0, 0);
}

[data-animate="scale-up"].is-visible {
    transform: scale(1);
}

/* ===== ANIMATED GRADIENT BACKGROUND ===== */
.animated-gradient-bg {
    background: linear-gradient(135deg,
            #EDE9FE 0%,
            #DBEAFE 25%,
            #F0FDFA 50%,
            #FEF3C7 75%,
            #EDE9FE 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

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

.float-medium {
    animation: floatMedium 4s ease-in-out infinite;
}

@keyframes floatGentle {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-15px) rotate(2deg);
    }
}

@keyframes floatMedium {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* ===== GLOW EFFECTS ===== */
.glow-on-hover {
    transition: box-shadow var(--transition-base);
}

.glow-on-hover:hover {
    box-shadow: var(--shadow-glow);
}

.glow-on-hover-strong:hover {
    box-shadow: var(--shadow-glow-strong);
}

/* ===== BUTTON ANIMATIONS ===== */
.btn-bounce {
    transition: transform var(--transition-bounce);
}

.btn-bounce:hover {
    transform: translateY(-3px);
}

.btn-bounce:active {
    transform: translateY(-1px);
}

/* Shimmer effect on buttons */
.btn-shimmer {
    position: relative;
    overflow: hidden;
}

.btn-shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent);
    transition: left 0.6s ease;
}

.btn-shimmer:hover::after {
    left: 100%;
}

/* ===== COUNTER ANIMATION ===== */
.counter-animate {
    font-variant-numeric: tabular-nums;
}

/* ===== CARD HOVER EFFECTS ===== */
.card-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card-tilt {
    transition: transform var(--transition-base);
}

.card-tilt:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(-2deg) translateY(-5px);
}

/* ===== GLASSMORPHISM ===== */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.glass-dark {
    background: rgba(24, 24, 27, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===== GRADIENT TEXT ===== */
.text-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== PULSE INDICATOR ===== */
.pulse-dot {
    position: relative;
}

.pulse-dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: var(--green-500);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }

    50% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1.5);
    }
}

/* ===== UNDERLINE ANIMATION ===== */
.underline-animate {
    position: relative;
}

.underline-animate::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width var(--transition-base);
}

.underline-animate:hover::after {
    width: 100%;
}

/* ===== LOADING SKELETON ===== */
.skeleton {
    background: linear-gradient(90deg,
            var(--gray-200) 25%,
            var(--gray-100) 50%,
            var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: skeleton 1.5s infinite;
    border-radius: var(--radius-md);
}

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

    100% {
        background-position: -200% 0;
    }
}

/* ===== MEDIA QUERIES FOR REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {

    [data-animate],
    [data-animate-stagger]>*,
    .float-gentle,
    .float-medium,
    .animated-gradient-bg {
        animation: none;
        transition: none;
    }

    [data-animate] {
        opacity: 1;
        transform: none;
    }
}