/* Modern Scroll Reveal Animations */

:root {
    --reveal-duration: 0.8s;
    --reveal-timing: cubic-bezier(0.25, 1, 0.5, 1);
    --reveal-distance: 40px;
    --accent-teal: #38a4a7;
    --accent-dark: #0f3c3d;
}

/* ═══════════════════════════════════════════════════════════════════
   PAGE LOADER OVERLAY
   Uses a thin overlay div instead of hiding the entire body.
   The body is visible to the browser immediately (fixes FCP/LCP).
   ═══════════════════════════════════════════════════════════════════ */
#page-loader {
    position: fixed;
    inset: 0;
    background: #fff;
    z-index: 99999;
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.5s ease-out;
}

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

/* Base states */
.reveal {
    opacity: 0;
    transition: opacity var(--reveal-duration) var(--reveal-timing),
        transform var(--reveal-duration) var(--reveal-timing);
    /* NOTE: will-change applied only when actively animating via JS */
}

/* Modifier classes */
.reveal-up {
    transform: translateY(var(--reveal-distance));
}

.reveal-down {
    transform: translateY(calc(var(--reveal-distance) * -1));
}

.reveal-left {
    transform: translateX(var(--reveal-distance));
}

.reveal-right {
    transform: translateX(calc(var(--reveal-distance) * -1));
}

.reveal-in {
    transform: scale(0.95);
}

/* Active states (triggered by JS) */
.reveal.active {
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

/* Staggered Delays */
.reveal-delay-1 {
    transition-delay: 0.1s;
}

.reveal-delay-2 {
    transition-delay: 0.2s;
}

.reveal-delay-3 {
    transition-delay: 0.3s;
}

.reveal-delay-4 {
    transition-delay: 0.4s;
}

.reveal-delay-5 {
    transition-delay: 0.5s;
}

/* Mirror animations for RTL (Arabic) */
[dir="rtl"] .reveal-left {
    transform: translateX(calc(var(--reveal-distance) * -1));
}

[dir="rtl"] .reveal-right {
    transform: translateX(var(--reveal-distance));
}

/* Glassmorphism / Shimmer Effect */
.shimmer-card {
    position: relative;
    overflow: hidden;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.6s ease;
    backface-visibility: hidden;
}

.shimmer-card:hover {
    transform: scale(1.03);
    /* Global subtle zoom */
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.shimmer-card::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg,
            transparent,
            rgba(255, 255, 255, 0.03) 30%,
            rgba(255, 255, 255, 0.1) 50%,
            rgba(255, 255, 255, 0.03) 70%,
            transparent);
    transform: rotate(45deg);
    transition: all 0.6s ease;
    opacity: 0;
    pointer-events: none;
}

.shimmer-card:hover::after {
    opacity: 1;
    left: 100%;
    top: 100%;
}

/* Background Parallax Helper */
.parallax-section {
    position: relative;
    overflow: hidden;
    background-attachment: fixed;
    /* Fallback */
}

/* Fluid Hover for Buttons */
.fluid-hover {
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1) !important;
}

.fluid-hover:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 10px 20px rgba(56, 164, 167, 0.2);
}

/* Text Reveal Animation */
.text-reveal {
    overflow: hidden;
    display: block;
    padding-bottom: 0.1em;
}

.text-reveal span {
    display: block;
    transform: translateY(115%);
    transition: transform 1.2s cubic-bezier(0.33, 1, 0.68, 1);
}

.text-reveal.active span {
    transform: translateY(0);
}

/* Subtle 3D Tilt */
.tilt-element {
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    transform-style: preserve-3d;
}

/* Glow Border Effect */
.glow-border {
    position: relative;
    z-index: 1;
}

.glow-border::before {
    content: "";
    position: absolute;
    inset: -2px;
    background: linear-gradient(45deg, var(--accent-teal), transparent, var(--accent-teal));
    z-index: -1;
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.5s ease;
    filter: blur(12px);
}

.glow-border:hover::before {
    opacity: 0.6;
}

/* Magnetic Interaction Utility */
.magnetic-wrap {
    display: inline-block;
    transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

/* Professional Clip-Path Image Reveal */
.clip-reveal {
    clip-path: inset(0 100% 0 0);
    transition: clip-path 1.2s cubic-bezier(0.77, 0, 0.175, 1);
}

.clip-reveal.active {
    clip-path: inset(0 0 0 0);
}

/* Accessibility: Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        transition-delay: 0ms !important;
    }

    #page-loader {
        display: none;
    }
}