/* ═══════════════════════════════════════════════════════════
   ANIMATIONS — Scroll-triggered & entrance animations
   ═══════════════════════════════════════════════════════════ */

/* ──────────────────────────────────────────────────────────
   FADE ANIMATIONS (applied via JS IntersectionObserver)
   ────────────────────────────────────────────────────────── */

/* Base: all animated elements start hidden */
[data-animate] {
    opacity: 0;
    transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
    will-change: opacity, transform;
}

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

[data-animate="fade-up"].in-view {
    opacity: 1;
    transform: translateY(0);
}

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

[data-animate="fade-down"].in-view {
    opacity: 1;
    transform: translateY(0);
}

/* Fade Left */
[data-animate="fade-left"] {
    transform: translateX(60px);
}

[data-animate="fade-left"].in-view {
    opacity: 1;
    transform: translateX(0);
}

/* Fade Right */
[data-animate="fade-right"] {
    transform: translateX(-60px);
}

[data-animate="fade-right"].in-view {
    opacity: 1;
    transform: translateX(0);
}

/* Fade In */
[data-animate="fade-in"] {
    transform: none;
}

[data-animate="fade-in"].in-view {
    opacity: 1;
}

/* Scale In */
[data-animate="scale-in"] {
    transform: scale(0.9);
}

[data-animate="scale-in"].in-view {
    opacity: 1;
    transform: scale(1);
}

/* Stagger delays */
[data-delay="0"] { transition-delay: 0s; }
[data-delay="1"] { transition-delay: 0.15s; }
[data-delay="2"] { transition-delay: 0.3s; }
[data-delay="3"] { transition-delay: 0.45s; }
[data-delay="4"] { transition-delay: 0.6s; }
[data-delay="5"] { transition-delay: 0.75s; }


/* ──────────────────────────────────────────────────────────
   HERO TITLE — Letter Split Animation
   ────────────────────────────────────────────────────────── */
[data-animate="split"] {
    opacity: 0;
    transform: translateY(100%);
    transition: opacity 1s var(--ease-out-expo), transform 1s var(--ease-out-expo);
}

[data-animate="split"].in-view {
    opacity: 1;
    transform: translateY(0);
}

.hero__title-line:nth-child(2) {
    transition-delay: 0.15s;
}


/* ──────────────────────────────────────────────────────────
   MAGNETIC BUTTON EFFECT
   ────────────────────────────────────────────────────────── */
.btn {
    transition: all 0.4s var(--ease-out-expo);
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s var(--ease-out-expo);
}

.btn:hover::before {
    transform: translateX(100%);
}


/* ──────────────────────────────────────────────────────────
   PARALLAX ELEMENTS
   ────────────────────────────────────────────────────────── */
.parallax {
    transition: transform 0.1s linear;
    will-change: transform;
}


/* ──────────────────────────────────────────────────────────
   SMOOTH REVEAL (text reveal line by line)
   ────────────────────────────────────────────────────────── */
.reveal-text {
    overflow: hidden;
}

.reveal-text span {
    display: inline-block;
    transform: translateY(100%);
    transition: transform 0.8s var(--ease-out-expo);
}

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


/* ──────────────────────────────────────────────────────────
   IMAGE REVEAL
   ────────────────────────────────────────────────────────── */
.img-reveal {
    position: relative;
    overflow: hidden;
}

.img-reveal::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-black);
    transform-origin: right;
    transition: transform 1.2s var(--ease-out-expo);
}

.img-reveal.in-view::after {
    transform: scaleX(0);
}


/* ──────────────────────────────────────────────────────────
   GOLD LINE ANIMATION
   ────────────────────────────────────────────────────────── */
.gold-line {
    display: block;
    width: 60px;
    height: 1px;
    background: var(--color-gold);
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 0.8s var(--ease-out-expo) 0.3s;
}

.gold-line.in-view {
    transform: scaleX(1);
}


/* ──────────────────────────────────────────────────────────
   PAGE TRANSITION
   ────────────────────────────────────────────────────────── */
.page-transition {
    position: fixed;
    inset: 0;
    z-index: 10001;
    background: var(--color-black);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.6s var(--ease-out-expo);
}

.page-transition.active {
    transform: scaleY(1);
    transform-origin: top;
}


/* ──────────────────────────────────────────────────────────
   REDUCED MOTION
   ────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

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

    html {
        scroll-behavior: auto;
    }
}