/* ============================================
   ANIMATIONS - Scroll Reveal, Entrance, Hover
   ============================================ */

/* ---------- Scroll Reveal States ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* Stagger child reveals */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-stagger.visible > * { opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.18s; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.26s; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.34s; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.42s; }
.reveal-stagger.visible > *:nth-child(7) { transition-delay: 0.5s; }
.reveal-stagger.visible > *:nth-child(8) { transition-delay: 0.58s; }
.reveal-stagger.visible > *:nth-child(9) { transition-delay: 0.66s; }

/* ---------- Animated Gradient Border ---------- */
.gradient-border {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--r-xl);
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary), var(--accent-tertiary), var(--accent-primary));
  background-size: 400% 400%;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: gradientMove 8s linear infinite;
  pointer-events: none;
}

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

/* ---------- Floating Shapes ---------- */
.floating-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.3;
  z-index: -1;
  pointer-events: none;
}

.shape-1 {
  width: 360px; height: 360px;
  background: var(--accent-primary);
  top: 10%; left: -100px;
  animation: floatShape1 18s ease-in-out infinite;
}

.shape-2 {
  width: 320px; height: 320px;
  background: var(--accent-secondary);
  top: 50%; right: -80px;
  animation: floatShape2 22s ease-in-out infinite;
}

.shape-3 {
  width: 280px; height: 280px;
  background: var(--accent-tertiary);
  bottom: 5%; left: 30%;
  animation: floatShape3 25s ease-in-out infinite;
}

@keyframes floatShape1 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(60px, 80px); }
}

@keyframes floatShape2 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-50px, 60px); }
}

@keyframes floatShape3 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(80px, -60px); }
}

/* ---------- Shimmer Loading ---------- */
.shimmer {
  background: linear-gradient(90deg,
    var(--bg-tertiary) 0%,
    var(--bg-glass) 50%,
    var(--bg-tertiary) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s linear infinite;
}

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

/* ---------- Tilt Hover Effect ---------- */
.tilt-card {
  transform-style: preserve-3d;
  transition: transform var(--t-base);
}

/* ---------- Bounce In ---------- */
@keyframes bounceIn {
  0% { opacity: 0; transform: scale(0.3); }
  50% { opacity: 1; transform: scale(1.05); }
  70% { transform: scale(0.95); }
  100% { transform: scale(1); }
}

.bounce-in { animation: bounceIn 0.7s cubic-bezier(0.34, 1.56, 0.64, 1); }

/* ---------- Slide Up ---------- */
@keyframes slideUp {
  from { opacity: 0; transform: translateY(60px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Spin Slow ---------- */
@keyframes spinSlow {
  to { transform: rotate(360deg); }
}

.spin-slow { animation: spinSlow 12s linear infinite; }

/* ---------- Hero entrance ---------- */
.hero-text > * {
  animation: heroFadeIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) backwards;
}

.hero-text > *:nth-child(1) { animation-delay: 0.1s; }
.hero-text > *:nth-child(2) { animation-delay: 0.25s; }
.hero-text > *:nth-child(3) { animation-delay: 0.4s; }
.hero-text > *:nth-child(4) { animation-delay: 0.55s; }
.hero-text > *:nth-child(5) { animation-delay: 0.7s; }

@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-visual {
  animation: heroVisualIn 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.5s backwards;
}

@keyframes heroVisualIn {
  from { opacity: 0; transform: translateX(40px) scale(0.95); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

/* Gradient text shimmer */
.text-shimmer {
  background: linear-gradient(90deg,
    var(--text-primary) 0%,
    var(--accent-primary) 30%,
    var(--accent-secondary) 50%,
    var(--accent-primary) 70%,
    var(--text-primary) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: textShimmer 4s linear infinite;
}

@keyframes textShimmer {
  to { background-position: 200% center; }
}

/* Modal entrance */
dialog.modal[open] {
  animation: modalIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}