/*
 * PRECISE - Modern 2026 Animations & Scroll Effects
 * Advanced animations for smooth, professional user experience
 */

/* --- Scroll Reveal Animations --- */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Fade In Up */
.fade-in-up {
    opacity: 0;
    transform: translate3d(0, 50px, 0);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
    /* GPU acceleration */
    backface-visibility: hidden;
    perspective: 1000px;
}

.fade-in-up.visible,
.fade-in-up.is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    will-change: auto;
}

/* Fade In Left */
.fade-in-left {
    opacity: 0;
    transform: translate3d(-50px, 0, 0);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
    backface-visibility: hidden;
}

.fade-in-left.visible,
.fade-in-left.is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    will-change: auto;
}

/* Fade In Right */
.fade-in-right {
    opacity: 0;
    transform: translate3d(50px, 0, 0);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
    backface-visibility: hidden;
}

.fade-in-right.visible,
.fade-in-right.is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    will-change: auto;
}

/* Scale In */
.scale-in {
    opacity: 0;
    transform: translate3d(0, 0, 0) scale(0.8);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
    backface-visibility: hidden;
}

.scale-in.visible,
.scale-in.is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
    will-change: auto;
}

/* Stagger Animation for Grids */
.stagger-item {
    opacity: 0;
    transform: translate3d(0, 30px, 0);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
    /* GPU acceleration */
    backface-visibility: hidden;
    perspective: 1000px;
}

.stagger-item.visible,
.stagger-item.is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    will-change: auto;
}

/* --- Hover Effects --- */
.hover-lift {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

/* --- Loading Animations --- */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.loading-shimmer {
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.3) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

/* --- Pulse Animation --- */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* --- Float Animation --- */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

/* --- Gradient Animation --- */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.gradient-animate {
    background-size: 200% 200%;
    animation: gradientShift 5s ease infinite;
}

/* --- Smooth Scroll Behavior --- */
html {
    scroll-behavior: smooth;
}

/* --- Page Loader --- */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--clr-background-page);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}

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

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

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(39, 105, 177, 0.1);
    border-top-color: var(--clr-green-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

.loader-content p {
    color: var(--clr-text-light);
    font-size: 0.9rem;
}

/* --- Performance Optimizations --- */
.animate-on-scroll,
.fade-in-up,
.fade-in-left,
.fade-in-right,
.scale-in,
.stagger-item {
    will-change: opacity, transform;
}

/* Remove will-change after animation to improve performance */
.animate-on-scroll.is-visible,
.fade-in-up.visible,
.fade-in-left.visible,
.fade-in-right.visible,
.scale-in.visible,
.stagger-item.visible {
    will-change: auto;
}

/* --- Card Hover Effects --- */
.card-hover-effect {
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover-effect::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left 0.5s;
}

.card-hover-effect:hover::before {
    left: 100%;
}

/* --- Image Zoom Effect --- */
.image-zoom {
    overflow: hidden;
}

.image-zoom img {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.image-zoom:hover img {
    transform: scale(1.1);
}

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

.ripple-effect::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;
}

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