/* ======================================
   Bisterne Developments - Animations
   ====================================== */

/* --- Reveal Animations --- */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    transition-delay: var(--delay, 0s);
}

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

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

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

.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed {
    opacity: 1;
    transform: translate(0);
}

/* --- Parallax --- */
.parallax-bg {
    will-change: transform;
}

/* --- Image Reveal --- */
.image-reveal {
    position: relative;
    overflow: hidden;
}

.image-reveal::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg-dark);
    transform-origin: left;
    transition: transform 1s cubic-bezier(0.65, 0, 0.35, 1);
}

.image-reveal.revealed::after {
    transform: scaleX(0);
    transform-origin: right;
}

/* --- Stagger Children --- */
.stagger-children > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.stagger-children.revealed > * {
    opacity: 1;
    transform: translateY(0);
}

/* --- Magnetic Hover --- */
.magnetic {
    transition: transform 0.3s ease;
}

/* --- Text Split Animation --- */
.split-text .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(100%);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.split-text.revealed .char {
    opacity: 1;
    transform: translateY(0);
}

/* --- Cursor Follower --- */
.cursor-follower {
    position: fixed;
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.5);
    transition: opacity 0.3s ease, transform 0.3s ease, width 0.3s ease, height 0.3s ease;
    mix-blend-mode: difference;
}

.cursor-follower.visible {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.cursor-follower.hovering {
    width: 60px;
    height: 60px;
    border-color: var(--color-accent-light);
}

/* Only show on desktop */
@media (max-width: 1024px) {
    .cursor-follower {
        display: none;
    }
}

/* --- Smooth Appear for gallery --- */
.gallery-appear .gallery-item,
.gallery-appear .gallery-page-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.gallery-appear.revealed .gallery-item:nth-child(1),
.gallery-appear.revealed .gallery-page-item:nth-child(1) { transition-delay: 0.05s; }
.gallery-appear.revealed .gallery-item:nth-child(2),
.gallery-appear.revealed .gallery-page-item:nth-child(2) { transition-delay: 0.1s; }
.gallery-appear.revealed .gallery-item:nth-child(3),
.gallery-appear.revealed .gallery-page-item:nth-child(3) { transition-delay: 0.15s; }
.gallery-appear.revealed .gallery-item:nth-child(4),
.gallery-appear.revealed .gallery-page-item:nth-child(4) { transition-delay: 0.2s; }
.gallery-appear.revealed .gallery-item:nth-child(5),
.gallery-appear.revealed .gallery-page-item:nth-child(5) { transition-delay: 0.25s; }
.gallery-appear.revealed .gallery-item:nth-child(6),
.gallery-appear.revealed .gallery-page-item:nth-child(6) { transition-delay: 0.3s; }
.gallery-appear.revealed .gallery-item:nth-child(7),
.gallery-appear.revealed .gallery-page-item:nth-child(7) { transition-delay: 0.35s; }
.gallery-appear.revealed .gallery-item:nth-child(8),
.gallery-appear.revealed .gallery-page-item:nth-child(8) { transition-delay: 0.4s; }
.gallery-appear.revealed .gallery-item:nth-child(9),
.gallery-appear.revealed .gallery-page-item:nth-child(9) { transition-delay: 0.45s; }

.gallery-appear.revealed .gallery-item,
.gallery-appear.revealed .gallery-page-item {
    opacity: 1;
    transform: translateY(0);
}

/* --- Page Transition --- */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg-dark);
    z-index: 9998;
    transform: translateY(100%);
    transition: transform 0.6s cubic-bezier(0.65, 0, 0.35, 1);
}

.page-transition.active {
    transform: translateY(0);
}

/* --- Counter Animation (handled by JS) --- */
.stat-number {
    font-variant-numeric: tabular-nums;
}

/* --- Floating Elements --- */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

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

/* --- Pulse --- */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* --- Gradient Text --- */
.gradient-text {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}