/* ========================================
   Fairy Life Sciences — Motion System
   ======================================== */

/* ===== REVEAL SYSTEM (IO-driven) ===== */

/* Hidden state — starts invisible + offset */
[data-reveal] {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity var(--duration-reveal) var(--ease-quint),
    transform var(--duration-reveal) var(--ease-quint);
  transition-delay: calc(var(--reveal-delay, 0) * 80ms);
}

/* Visible state — triggered by JS adding .is-visible */
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Reveal from left */
[data-reveal="left"] {
  transform: translateX(-32px);
}
[data-reveal="left"].is-visible {
  transform: translateX(0);
}

/* Reveal from right */
[data-reveal="right"] {
  transform: translateX(32px);
}
[data-reveal="right"].is-visible {
  transform: translateX(0);
}

/* Reveal scale up */
[data-reveal="scale"] {
  transform: scale(0.92);
}
[data-reveal="scale"].is-visible {
  transform: scale(1);
}

/* Reveal with stagger delays */
[data-reveal-delay="1"] { --reveal-delay: 1; }
[data-reveal-delay="2"] { --reveal-delay: 2; }
[data-reveal-delay="3"] { --reveal-delay: 3; }
[data-reveal-delay="4"] { --reveal-delay: 4; }
[data-reveal-delay="5"] { --reveal-delay: 5; }

/* Stagger via CSS var (set inline style="--reveal-delay: N") */
[data-reveal][style*="--reveal-delay"] {
  transition-delay: calc(var(--reveal-delay) * 80ms);
}

/* ===== LEGACY ANIMATE-IN COMPAT ===== */

.animate-in {
  opacity: 0;
  transform: translateY(40px);
}

.animate-in.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: all 0.9s var(--ease-out-expo);
}

.animate-in.delay-1 { transition-delay: 0.1s; }
.animate-in.delay-2 { transition-delay: 0.2s; }
.animate-in.delay-3 { transition-delay: 0.3s; }
.animate-in.delay-4 { transition-delay: 0.4s; }

/* ===== MAGNETIC HOVER (JS-driven) ===== */

[data-magnetic] {
  transition: transform var(--duration-normal) var(--ease-spring);
  will-change: transform;
}

/* ===== SVG DRAW ON ===== */

[data-draw] {
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  transition: stroke-dashoffset 1.2s var(--ease-out-quint);
}

[data-draw].is-visible {
  stroke-dashoffset: 0;
}

/* ===== COUNT UP ===== */

[data-count] {
  font-variant-numeric: tabular-nums;
  font-feature-settings: 'tnum' 1;
}

/* ===== PARALLAX ===== */

[data-parallax] {
  will-change: transform;
  transition: transform 0.1s linear;
}

/* ===== SCROLL PROGRESS BAR ===== */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-500), var(--jewel-500));
  z-index: var(--z-toast);
  transition: width 0.1s linear;
  pointer-events: none;
}

/* ===== SMOOTH SCROLL ===== */

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

/* ===== FADE ANIMATIONS ===== */

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeDown {
  from {
    opacity: 0;
    transform: translateY(-24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ===== PULSE / GLOW ===== */

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

/* ===== REDUCED MOTION GUARDS ===== */

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  [data-draw] {
    stroke-dashoffset: 0;
    transition: none;
  }

  .animate-in {
    opacity: 1;
    transform: none;
    transition: none;
  }

  [data-magnetic] {
    transition: none;
  }

  [data-parallax] {
    transition: none;
  }

  .scroll-progress {
    display: none;
  }
}