/* ============================================================
   RELIANCE ANIMATION ACADEMY — ANIMATIONS
   animations.css
   ============================================================ */

/* ── Keyframes ────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(32px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.88); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes particleFloat {
  0% { transform: translateY(100vh) translateX(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 0.5; }
  100% { transform: translateY(-10vh) translateX(var(--drift, 30px)); opacity: 0; }
}
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes borderPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(4,70,154,0.4); }
  50% { box-shadow: 0 0 0 10px rgba(4,70,154,0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

/* ── Page Transition ──────────────────────────────────────── */
.page-transition {
  position: fixed;
  inset: 0;
  z-index: 99998;
  background: var(--deep-blue);
  transform: scaleY(0);
  transform-origin: bottom;
  pointer-events: none;
}
.page-transition.enter {
  animation: pageEnter 0.45s var(--ease-out) forwards;
}
.page-transition.exit {
  transform: scaleY(1);
  transform-origin: top;
  animation: pageExit 0.4s var(--ease-out) forwards;
}
@keyframes pageEnter {
  to { transform: scaleY(1); transform-origin: bottom; }
}
@keyframes pageExit {
  to { transform: scaleY(0); }
}

/* ── Loading Spinner ──────────────────────────────────────── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}
.spinner-blue {
  border-color: rgba(4,70,154,0.25);
  border-top-color: var(--brand-blue);
}

/* ── Hover Underline ──────────────────────────────────────── */
.hover-underline {
  position: relative;
  display: inline-block;
}
.hover-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand-blue);
  transition: width var(--dur-base) var(--ease-smooth);
}
.hover-underline:hover::after { width: 100%; }

/* ── Card Shimmer (loading placeholder) ───────────────────── */
.shimmer-card {
  background: linear-gradient(
    90deg,
    var(--gray-100) 25%,
    var(--gray-200) 50%,
    var(--gray-100) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-lg);
}

/* ── Floating Elements ────────────────────────────────────── */
.float-anim { animation: float 4s ease-in-out infinite; }
.float-anim-slow { animation: float 6s ease-in-out infinite; }
.float-anim-delay { animation: float 4s ease-in-out 1s infinite; }

/* ── Entrance Animation Classes ───────────────────────────── */
[data-animate="fade-up"] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease-smooth), transform 0.7s var(--ease-smooth);
}
[data-animate="fade-in"] {
  opacity: 0;
  transition: opacity 0.7s var(--ease-smooth);
}
[data-animate="fade-left"] {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.7s var(--ease-smooth), transform 0.7s var(--ease-smooth);
}
[data-animate="fade-right"] {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.7s var(--ease-smooth), transform 0.7s var(--ease-smooth);
}
[data-animate="scale-in"] {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s var(--ease-smooth), transform 0.6s var(--ease-spring);
}
[data-animate].animated {
  opacity: 1;
  transform: none;
}
[data-delay="1"] { transition-delay: 0.1s; }
[data-delay="2"] { transition-delay: 0.2s; }
[data-delay="3"] { transition-delay: 0.3s; }
[data-delay="4"] { transition-delay: 0.4s; }
[data-delay="5"] { transition-delay: 0.5s; }
[data-delay="6"] { transition-delay: 0.6s; }

/* ── Animated Title & Letter Reveal ─────────────────────────── */
.animate-letters,
.page-hero-title {
  display: block;
  width: 100%;
}

.word-span {
  display: inline-block;
  white-space: nowrap;
  overflow: hidden;
  vertical-align: bottom;
  padding-bottom: 0.05em;
}

.letter-span {
  display: inline-block;
  transform: translateY(120%) rotate(5deg);
  opacity: 0;
  animation: letterReveal 0.75s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  will-change: transform, opacity;
}

.page-hero-title span,
.animate-letters span {
  color: var(--brand-red);
}

.page-hero-title span .letter-span,
.animate-letters span .letter-span {
  color: var(--brand-red);
  background: linear-gradient(135deg, #e21e26 0%, #ff4d54 50%, #e21e26 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: letterReveal 0.75s cubic-bezier(0.16, 1, 0.3, 1) forwards, textGradientShimmer 4s ease infinite;
}

@keyframes letterReveal {
  0% {
    opacity: 0;
    transform: translateY(120%) rotate(5deg);
  }
  100% {
    opacity: 1;
    transform: translateY(0) rotate(0deg);
  }
}

@keyframes textGradientShimmer {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ── Reduced Motion Overrides ─────────────────────────────── */
@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;
  }
  .hero-headline-word, .letter-span { transform: none !important; opacity: 1 !important; }
  .hero-sub, .hero-actions { opacity: 1 !important; transform: none !important; }
  [data-animate] { opacity: 1 !important; transform: none !important; }
  .preloader-bar { animation: none !important; width: 100%; }
  .marquee-track { animation: none !important; }
  .particle { display: none; }
}