/* ==========================================================================
   ZAVIR-tech — Animations
   Keyframes + scroll-reveal utility classes (triggered by js/animations.js)
   ========================================================================== */

/* ---------- Keyframes ---------- */

/* Loader progress bar */
@keyframes loaderFill {
  from { width: 0; }
  to   { width: 100%; }
}

/* Floating gradient orbs */
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(30px, -40px) scale(1.05); }
  66%      { transform: translate(-25px, 25px) scale(0.97); }
}

/* Slow rotation for decorative rings */
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Vertical light beam pulse */
@keyframes beam {
  0%, 100% { opacity: 0.15; height: 30%; }
  50%      { opacity: 0.55; height: 45%; }
}

/* Status dot pulse */
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5); }
  50%      { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

/* Typing caret blink */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0; }
}

/* Animated gradient text */
@keyframes gradientShift {
  0%, 100% { background-position: 0% center; }
  50%      { background-position: 100% center; }
}

/* Scroll-hint mouse wheel */
@keyframes scrollWheel {
  0%   { transform: translate(-50%, 0); opacity: 1; }
  70%  { transform: translate(-50%, 12px); opacity: 0; }
  100% { transform: translate(-50%, 0); opacity: 0; }
}

/* Button ripple */
@keyframes ripple {
  to { transform: scale(4); opacity: 0; }
}

/* ---------- Scroll Reveal System ----------
   Elements with .reveal start hidden and transition in
   when JS adds .is-revealed (IntersectionObserver).
   data-reveal chooses direction; data-reveal-delay adds stagger. */

.reveal {
  opacity: 0;
  transition:
    opacity 0.8s var(--ease),
    transform 0.8s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

/* Direction variants */
.reveal[data-reveal="up"]    { transform: translateY(40px); }
.reveal[data-reveal="down"]  { transform: translateY(-40px); }
.reveal[data-reveal="left"]  { transform: translateX(-48px); }
.reveal[data-reveal="right"] { transform: translateX(48px); }
.reveal[data-reveal="scale"] { transform: scale(0.85); }
.reveal[data-reveal="fade"]  { transform: none; }

/* Revealed state */
.reveal.is-revealed {
  opacity: 1;
  transform: none;
}

/* Touch devices use shorter reveals to keep scrolling responsive. */
@media (max-width: 768px) {
  .reveal {
    transition-duration: 0.55s;
  }

  .reveal[data-reveal="up"] { transform: translateY(18px); }
  .reveal[data-reveal="down"] { transform: translateY(-18px); }
  .reveal[data-reveal="left"] { transform: translateX(-24px); }
  .reveal[data-reveal="right"] { transform: translateX(24px); }
  .reveal[data-reveal="scale"] { transform: scale(0.96); }
  .reveal.is-revealed { transform: none; }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}