/* ═══════════════════════════════════════════════════════════════════════════
   ANIMATION SYSTEM
   Scroll-driven reveals, micro-interactions, and motion tokens.
   Uses data-animate attributes driven by IntersectionObserver in JS.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Initial States (hidden before reveal) ────────────────────────────────── */
[data-animate] {
    opacity: 0;
    will-change: opacity, transform;
}

[data-animate="fade-up"] {
    transform: translateY(30px);
}

[data-animate="fade-down"] {
    transform: translateY(-30px);
}

[data-animate="fade-left"] {
    transform: translateX(30px);
}

[data-animate="fade-right"] {
    transform: translateX(-30px);
}

[data-animate="scale-up"] {
    transform: scale(0.92);
}

[data-animate="zoom-in"] {
    transform: scale(0.85);
}

[data-animate="blur-in"] {
    filter: blur(8px);
    transform: translateY(10px);
}

/* ── Revealed States ──────────────────────────────────────────────────────── */
[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
    filter: blur(0);
    transition:
        opacity var(--duration-slow) var(--ease-out),
        transform var(--duration-slow) var(--ease-out),
        filter var(--duration-slow) var(--ease-out);
}

/* Stagger delays via data-delay attribute */
[data-animate].is-visible[data-delay="100"] { transition-delay: 100ms; }
[data-animate].is-visible[data-delay="150"] { transition-delay: 150ms; }
[data-animate].is-visible[data-delay="200"] { transition-delay: 200ms; }
[data-animate].is-visible[data-delay="250"] { transition-delay: 250ms; }
[data-animate].is-visible[data-delay="300"] { transition-delay: 300ms; }
[data-animate].is-visible[data-delay="400"] { transition-delay: 400ms; }
[data-animate].is-visible[data-delay="500"] { transition-delay: 500ms; }
[data-animate].is-visible[data-delay="600"] { transition-delay: 600ms; }
[data-animate].is-visible[data-delay="700"] { transition-delay: 700ms; }
[data-animate].is-visible[data-delay="800"] { transition-delay: 800ms; }


/* ── Hover Micro-Interactions ─────────────────────────────────────────────── */

/* Lift on hover */
.hover-lift {
    transition: transform var(--duration-base) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out);
}

.hover-lift:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

/* Scale on hover */
.hover-scale {
    transition: transform var(--duration-base) var(--ease-spring);
}

.hover-scale:hover {
    transform: scale(1.03);
}

/* Glow on hover */
.hover-glow {
    transition: box-shadow var(--duration-base) var(--ease-out);
}

.hover-glow:hover {
    box-shadow: var(--shadow-glow);
}

/* Tilt effect (subtle 3D rotation) */
.hover-tilt {
    transition: transform var(--duration-base) var(--ease-out);
    transform-style: preserve-3d;
    perspective: 1000px;
}

.hover-tilt:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(-2deg);
}


/* ── Loading / Pulse Animations ───────────────────────────────────────────── */
@keyframes shimmer {
    0%   { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.skeleton {
    background: linear-gradient(
        90deg,
        var(--surface-muted) 25%,
        var(--border-light) 50%,
        var(--surface-muted) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}


/* ── Marquee / Infinite Scroll ────────────────────────────────────────────── */
@keyframes marquee {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.marquee {
    display: flex;
    overflow: hidden;
    white-space: nowrap;
}

.marquee__inner {
    display: flex;
    animation: marquee 30s linear infinite;
}


/* ── Page Transition ──────────────────────────────────────────────────────── */
@keyframes pageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.site-main {
    animation: pageIn var(--duration-slow) var(--ease-out) both;
}


/* ── Counter / Number Roll ────────────────────────────────────────────────── */
@keyframes countUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

[data-countup].is-counting {
    animation: countUp var(--duration-base) var(--ease-out) both;
}


/* ── Floating / Breathing ─────────────────────────────────────────────────── */
@keyframes breathe {
    0%, 100% { transform: scale(1); opacity: 1; }
    50%      { transform: scale(1.05); opacity: 0.8; }
}

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

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

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


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

.animate-gradient {
    background-size: 200% 200%;
    animation: gradientShift 6s ease infinite;
}


/* ── Line Draw (for SVG strokes) ──────────────────────────────────────────── */
@keyframes drawLine {
    from { stroke-dashoffset: 1000; }
    to   { stroke-dashoffset: 0; }
}

.animate-draw {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
}

.animate-draw.is-visible {
    animation: drawLine 2s var(--ease-out) forwards;
}


/* ── 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;
        filter: none;
    }

    .site-main {
        animation: none;
    }

    .hero__orb,
    .hero__float-card,
    .hero__scroll-wheel,
    .hero__badge-dot,
    .contact-info-card__status-dot {
        animation: none;
    }
}