/* ===========================
   DINOLAND ANIMATION SYSTEM
   Natural, environmental motion
=========================== */

/* ===========================
   ENTRANCE ANIMATIONS
=========================== */

/* Fade in from below — "unearthing" effect */
@keyframes excavate-up {
  0% {
    opacity: 0;
    transform: translateY(36px);
    filter: blur(4px);
  }
  60% {
    filter: blur(0px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade in from side — "emerging from jungle" */
@keyframes emerge-right {
  0% {
    opacity: 0;
    transform: translateX(-28px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes emerge-left {
  0% {
    opacity: 0;
    transform: translateX(28px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Fade pure — "ancient light" */
@keyframes ancient-reveal {
  0% {
    opacity: 0;
    filter: blur(2px);
  }
  100% {
    opacity: 1;
    filter: blur(0px);
  }
}

/* Scale reveal — "fossil uncovered" */
@keyframes fossil-emerge {
  0% {
    opacity: 0;
    transform: scale(0.92);
    filter: blur(3px);
  }
  100% {
    opacity: 1;
    transform: scale(1);
    filter: blur(0px);
  }
}

/* ===========================
   AMBIENT LOOP ANIMATIONS
=========================== */

/* Jungle particles floating */
@keyframes float-particle {
  0% {
    transform: translate(0, 0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translate(var(--tx, 30px), var(--ty, -120px)) rotate(var(--tr, 180deg));
    opacity: 0;
  }
}

/* Gentle fog drift */
@keyframes fog-drift {
  0% {
    transform: translateX(-100px) scaleX(0.8);
    opacity: 0;
  }
  20% {
    opacity: 0.4;
  }
  80% {
    opacity: 0.25;
  }
  100% {
    transform: translateX(200px) scaleX(1.2);
    opacity: 0;
  }
}

/* Ambient glow pulse */
@keyframes amber-pulse {
  0%, 100% {
    box-shadow: 0 0 20px rgba(212, 135, 42, 0.2), 0 0 40px rgba(212, 135, 42, 0.08);
  }
  50% {
    box-shadow: 0 0 32px rgba(212, 135, 42, 0.35), 0 0 60px rgba(212, 135, 42, 0.15);
  }
}

/* Bio-glow pulse (green) */
@keyframes bio-pulse {
  0%, 100% {
    box-shadow: 0 0 8px rgba(90, 170, 96, 0.2);
    opacity: 0.8;
  }
  50% {
    box-shadow: 0 0 16px rgba(90, 170, 96, 0.4);
    opacity: 1;
  }
}

/* Ground rumble — subtle vibration on game spin */
@keyframes ground-rumble {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-1px, 1px); }
  20% { transform: translate(1px, -1px); }
  30% { transform: translate(-1px, 0); }
  40% { transform: translate(1px, 1px); }
  50% { transform: translate(0, -1px); }
  60% { transform: translate(-1px, 0); }
  70% { transform: translate(1px, 1px); }
  80% { transform: translate(-1px, -1px); }
  90% { transform: translate(1px, 0); }
}

/* Leaf sway */
@keyframes leaf-sway {
  0%, 100% { transform: rotate(-3deg) scale(1); }
  33% { transform: rotate(2deg) scale(1.02); }
  66% { transform: rotate(-1deg) scale(0.99); }
}

/* Reel spin symbol */
@keyframes reel-spin {
  0% { transform: translateY(0); }
  100% { transform: translateY(-300%); }
}

/* Reel symbol cycle */
@keyframes symbol-cycle {
  0%, 100% { opacity: 1; transform: scale(1); }
  25% { opacity: 0.7; transform: scale(0.95); }
  50% { opacity: 1; transform: scale(1.05); }
  75% { opacity: 0.8; transform: scale(0.98); }
}

/* Gold shimmer across surface */
@keyframes shimmer-sweep {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

/* Sunbeam drift */
@keyframes sunbeam {
  0% {
    opacity: 0;
    transform: translateX(-20px) scaleX(0.8);
  }
  30% { opacity: 0.15; }
  70% { opacity: 0.08; }
  100% {
    opacity: 0;
    transform: translateX(40px) scaleX(1.3);
  }
}

/* Mist rise from ground */
@keyframes mist-rise {
  0% {
    transform: translateY(20px) scaleX(0.9);
    opacity: 0;
  }
  30% { opacity: 0.3; }
  70% { opacity: 0.15; }
  100% {
    transform: translateY(-60px) scaleX(1.2);
    opacity: 0;
  }
}

/* Spore float */
@keyframes spore-float {
  0% {
    transform: translate(0, 0) rotate(0deg);
    opacity: 0;
  }
  15% { opacity: 0.7; }
  85% { opacity: 0.3; }
  100% {
    transform: translate(var(--dx, 20px), -150px) rotate(var(--dr, 360deg));
    opacity: 0;
  }
}

/* Button ambient glow */
@keyframes btn-amber-breathe {
  0%, 100% {
    box-shadow: 0 6px 20px rgba(212, 135, 42, 0.35);
  }
  50% {
    box-shadow: 0 6px 28px rgba(212, 135, 42, 0.55), 0 0 40px rgba(212, 135, 42, 0.2);
  }
}

/* Nav scroll indicator */
@keyframes scroll-hint {
  0%, 100% { transform: translateY(0); opacity: 0.6; }
  50% { transform: translateY(6px); opacity: 1; }
}

/* Stamp / reveal text */
@keyframes text-stamp {
  0% {
    opacity: 0;
    transform: scale(1.08);
    letter-spacing: 0.3em;
  }
  100% {
    opacity: 1;
    transform: scale(1);
    letter-spacing: inherit;
  }
}

/* Stagger children */
@keyframes stagger-in {
  0% {
    opacity: 0;
    transform: translateY(24px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===========================
   APPLIED ANIMATION CLASSES
=========================== */

.anim-excavate {
  opacity: 0;
  animation: excavate-up 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.anim-emerge-right {
  opacity: 0;
  animation: emerge-right 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.anim-emerge-left {
  opacity: 0;
  animation: emerge-left 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.anim-reveal {
  opacity: 0;
  animation: ancient-reveal 0.9s ease forwards;
}

.anim-fossil {
  opacity: 0;
  animation: fossil-emerge 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* Delay utilities */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }
.delay-800 { animation-delay: 0.8s; }
.delay-1000 { animation-delay: 1s; }
.delay-1200 { animation-delay: 1.2s; }

/* Amber glow card */
.glow-amber-ambient {
  animation: amber-pulse 3.5s ease-in-out infinite;
}

/* Bio glow dot */
.bio-glow {
  animation: bio-pulse 2.5s ease-in-out infinite;
}

/* ===========================
   PARTICLE SYSTEM
=========================== */
.particles-container {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.particle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.particle-spore {
  width: 4px;
  height: 4px;
  background: rgba(200, 168, 64, 0.6);
  box-shadow: 0 0 4px rgba(200, 168, 64, 0.4);
  animation: spore-float var(--dur, 8s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}

.particle-dust {
  width: 2px;
  height: 2px;
  background: rgba(180, 160, 100, 0.4);
  animation: float-particle var(--dur, 12s) linear infinite;
  animation-delay: var(--delay, 0s);
}

.particle-bio {
  width: 3px;
  height: 3px;
  background: rgba(90, 170, 96, 0.5);
  box-shadow: 0 0 6px rgba(90, 170, 96, 0.3);
  animation: spore-float var(--dur, 10s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}

/* ===========================
   SUNBEAM EFFECT
=========================== */
.sunbeam-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 60%;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}

.sunbeam {
  position: absolute;
  top: 0;
  width: 60px;
  height: 100%;
  background: linear-gradient(180deg, rgba(212, 135, 42, 0.08) 0%, transparent 80%);
  transform-origin: top center;
  transform: skewX(-20deg);
  animation: sunbeam var(--dur, 15s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}

.sunbeam:nth-child(1) { left: 15%; --dur: 18s; --delay: 0s; }
.sunbeam:nth-child(2) { left: 35%; --dur: 22s; --delay: 3s; width: 40px; }
.sunbeam:nth-child(3) { left: 60%; --dur: 16s; --delay: 6s; }
.sunbeam:nth-child(4) { left: 80%; --dur: 20s; --delay: 2s; width: 35px; }

/* ===========================
   MIST EFFECT
=========================== */
.mist-layer {
  position: absolute;
  bottom: 0;
  left: -20%;
  width: 140%;
  height: 120px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(15, 26, 12, 0.3) 20%,
    rgba(15, 26, 12, 0.5) 50%,
    rgba(15, 26, 12, 0.3) 80%,
    transparent 100%
  );
  filter: blur(12px);
  animation: fog-drift var(--dur, 20s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
  pointer-events: none;
}

.mist-layer-2 {
  height: 80px;
  --dur: 28s;
  --delay: 4s;
  opacity: 0.6;
  bottom: 20px;
}

/* ===========================
   SCROLL-TRIGGERED REVEAL
   (JS-activated classes)
=========================== */
.scroll-reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.scroll-reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.scroll-reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.scroll-reveal-scale {
  opacity: 0;
  transform: scale(0.94);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.scroll-reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* Stagger children in container */
.stagger-container > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.stagger-container.revealed > *:nth-child(1) { opacity: 1; transform: translateY(0); transition-delay: 0s; }
.stagger-container.revealed > *:nth-child(2) { opacity: 1; transform: translateY(0); transition-delay: 0.12s; }
.stagger-container.revealed > *:nth-child(3) { opacity: 1; transform: translateY(0); transition-delay: 0.24s; }
.stagger-container.revealed > *:nth-child(4) { opacity: 1; transform: translateY(0); transition-delay: 0.36s; }
.stagger-container.revealed > *:nth-child(5) { opacity: 1; transform: translateY(0); transition-delay: 0.48s; }
.stagger-container.revealed > *:nth-child(6) { opacity: 1; transform: translateY(0); transition-delay: 0.6s; }

/* ===========================
   LOGO SHIMMER
=========================== */
.logo-shimmer {
  background: linear-gradient(
    90deg,
    var(--amber-glow) 0%,
    var(--jungle-gold-light) 30%,
    var(--amber-glow) 60%,
    var(--amber-warm) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer-sweep 4s linear infinite;
}

/* ===========================
   STONE CARD HOVER EFFECTS
=========================== */
.stone-card .card-icon {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.3s ease;
}

.stone-card:hover .card-icon {
  transform: translateY(-3px) scale(1.08);
  box-shadow: 0 8px 20px rgba(212, 135, 42, 0.25);
}

/* ===========================
   SCROLL INDICATOR
=========================== */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 5;
  opacity: 0.7;
}

.scroll-indicator-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--amber-glow), transparent);
  animation: scroll-hint 2s ease-in-out infinite;
}

.scroll-indicator-text {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-family: 'Georgia', serif;
}

/* ===========================
   REEL SYMBOL ANIMATION
   (Hero visual display)
=========================== */
.reel-slot .symbol {
  display: inline-block;
  animation: symbol-cycle 3s ease-in-out infinite;
}

.reel-slot:nth-child(2) .symbol { animation-delay: 0.4s; }
.reel-slot:nth-child(3) .symbol { animation-delay: 0.8s; }
.reel-slot:nth-child(4) .symbol { animation-delay: 1.2s; }
.reel-slot:nth-child(5) .symbol { animation-delay: 1.6s; }
.reel-slot:nth-child(6) .symbol { animation-delay: 2.0s; }
.reel-slot:nth-child(7) .symbol { animation-delay: 0.2s; }
.reel-slot:nth-child(8) .symbol { animation-delay: 0.6s; }
.reel-slot:nth-child(9) .symbol { animation-delay: 1.0s; }

/* ===========================
   PAGE LOAD SEQUENCE
=========================== */
.hero-badge { animation: ancient-reveal 0.6s ease 0.2s both; }
.hero-headline { animation: excavate-up 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.35s both; }
.hero-description { animation: excavate-up 0.8s ease 0.55s both; }
.hero-ctas { animation: excavate-up 0.7s ease 0.75s both; }
.hero-disclaimer { animation: ancient-reveal 0.6s ease 0.9s both; }
.hero-game-visual { animation: emerge-left 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.4s both; }

/* ===========================
   GAME SECTION AMBIENT
=========================== */
.game-temple-container::before {
  content: '';
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 80px;
  background: radial-gradient(ellipse, rgba(212, 135, 42, 0.12) 0%, transparent 70%);
  filter: blur(20px);
  pointer-events: none;
  animation: amber-pulse 4s ease-in-out infinite;
}

/* ===========================
   HOVER TRANSITIONS - ENHANCED
=========================== */
.btn-primary:active {
  transform: translateY(0);
  transition-duration: 0.1s;
}

.btn-secondary:active {
  transform: translateY(0);
  transition-duration: 0.1s;
}

/* ===========================
   JUNGLE BACKGROUND TEXTURE
=========================== */
.jungle-texture-overlay {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 25% 25%, rgba(45, 90, 39, 0.05) 0%, transparent 30%),
    radial-gradient(circle at 75% 75%, rgba(106, 68, 35, 0.05) 0%, transparent 30%),
    radial-gradient(circle at 50% 50%, rgba(0,0,0,0) 0%, rgba(0,0,0,0.1) 100%);
  pointer-events: none;
}

/* ===========================
   INTERACTIVE GLOW LINKS
=========================== */
.glow-link {
  position: relative;
  color: var(--amber-glow);
  transition: color 0.3s ease;
}

.glow-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--amber-glow), var(--jungle-gold));
  transition: width 0.3s ease;
}

.glow-link:hover {
  color: var(--amber-light);
  text-shadow: 0 0 12px rgba(212, 135, 42, 0.4);
}

.glow-link:hover::after {
  width: 100%;
}