/* ==========================================================================
   Antigravity Transitions & Animations System
   ========================================================================== */

/* 1. Page Load & Exit Transitions */
body.js-transitions {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.5s cubic-bezier(0.25, 0.8, 0.25, 1), 
                transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

body.js-transitions.fade-in-active {
    opacity: 1;
    transform: translateY(0);
}

body.js-transitions.fade-out-active {
    opacity: 0;
    transform: translateY(-12px);
}

/* 2. Scroll Reveal Animations */
.reveal {
    opacity: 0;
    transition: opacity 0.8s cubic-bezier(0.25, 0.8, 0.25, 1), 
                transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
    will-change: opacity, transform;
}

.reveal-up {
    transform: translateY(40px);
}

.reveal-down {
    transform: translateY(-40px);
}

.reveal-left {
    transform: translateX(-40px);
}

.reveal-right {
    transform: translateX(40px);
}

.reveal-scale {
    transform: scale(0.94);
}

/* State when item scrolls into view */
.reveal.revealed {
    opacity: 1;
    transform: translate(0) scale(1);
}

/* Staggered delays for grids/lists */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }
.delay-600 { transition-delay: 600ms; }
.delay-700 { transition-delay: 700ms; }
.delay-800 { transition-delay: 800ms; }

/* 3. Navigation Links Underline Hover Animation */
.navbar-nav .nav-link {
    position: relative;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link::before {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    bottom: -4px;
    left: 50%;
    background-color: var(--orange);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    transform: translateX(-50%);
    border-radius: 2px;
}

.navbar-nav .nav-link:hover::before,
.navbar-nav .nav-item.active .nav-link::before {
    width: 70%;
}

/* 4. Hover Transitions for Cards and Interactive Blocks */
.programs .program, 
.news-section .news-grid, 
.stories .story-item,
.team .member,
.docs .show-doc,
.video-section .video-item {
    transition: transform 0.35s cubic-bezier(0.25, 0.8, 0.25, 1), 
                box-shadow 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.programs .program:hover {
    transform: translateY(-8px) scale(1.03);
}

.news-section .news-grid:hover,
.stories .story-item:hover,
.video-section .video-item:hover {
    transform: translateY(-5px);
}

.team .member:hover {
    transform: scale(1.05);
}

/* Image Zoom Hover inside Cards */
.news-section .thumbnail,
.stories .thumbnail,
.video-section .thumbnail {
    overflow: hidden;
}

.news-section .thumbnail img,
.stories .thumbnail img,
.video-section .thumbnail img {
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.news-section .news-grid:hover .thumbnail img,
.stories .story-item:hover .thumbnail img,
.video-section .video-item:hover .thumbnail img {
    transform: scale(1.06);
}

/* 5. Floating Social Icons Micro-animation */
.floating-icons a img {
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.floating-icons a:hover img {
    transform: scale(1.22) rotate(8deg);
}

/* 6. CTA & Submit Buttons Micro-animations */
.cta, .contact-us .submit {
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}

.cta:hover {
    background-color: var(--blue) !important;
    color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(15, 110, 184, 0.3);
}

.contact-us .submit:hover {
    background-color: var(--blue) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(15, 110, 184, 0.3);
}