/* ============================================
   GHRC Website - Scroll Animations & Shared Effects
   ============================================ */

/* ── Scroll Reveal Base States ── */
.reveal {
  opacity: 0;
  transition: all var(--duration-slower) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
}

/* Fade Up */
.reveal--up {
  transform: translateY(40px);
}

.reveal--up.visible {
  transform: translateY(0);
}

/* Fade Down */
.reveal--down {
  transform: translateY(-40px);
}

.reveal--down.visible {
  transform: translateY(0);
}

/* Fade Left */
.reveal--left {
  transform: translateX(-40px);
}

.reveal--left.visible {
  transform: translateX(0);
}

/* Fade Right */
.reveal--right {
  transform: translateX(40px);
}

.reveal--right.visible {
  transform: translateX(0);
}

/* Scale In */
.reveal--scale {
  transform: scale(0.9);
}

.reveal--scale.visible {
  transform: scale(1);
}

/* Rotate In */
.reveal--rotate {
  transform: rotate(-5deg) scale(0.95);
}

.reveal--rotate.visible {
  transform: rotate(0) scale(1);
}

/* ── Stagger Children ── */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--duration-slow) var(--ease-out);
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(2) { transition-delay: 100ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(3) { transition-delay: 200ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(4) { transition-delay: 300ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(5) { transition-delay: 400ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(6) { transition-delay: 500ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(7) { transition-delay: 600ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(8) { transition-delay: 700ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(9) { transition-delay: 800ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(10) { transition-delay: 900ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(11) { transition-delay: 1000ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(12) { transition-delay: 1100ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(13) { transition-delay: 1200ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(14) { transition-delay: 1300ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(15) { transition-delay: 1400ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(16) { transition-delay: 1500ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(n+17) { transition-delay: 1600ms; opacity: 1; transform: translateY(0); }

/* ── Counter Animation ── */
.counter {
  font-family: var(--font-mono);
  font-weight: var(--font-bold);
  font-size: var(--text-4xl);
  color: var(--color-primary);
  display: inline-block;
}

/* ── Pulsing Heartbeat ── */
@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  14% { transform: scale(1.1); }
  28% { transform: scale(1); }
  42% { transform: scale(1.08); }
  70% { transform: scale(1); }
}

.pulse-heartbeat {
  animation: heartbeat 1.5s ease-in-out infinite;
}

/* ── Heartbeat Line SVG ── */
@keyframes heartbeat-line {
  0% { stroke-dashoffset: 1000; }
  100% { stroke-dashoffset: 0; }
}

.heartbeat-line {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: heartbeat-line 2s linear infinite;
}

/* ── Float Animation ── */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.float {
  animation: float 3s ease-in-out infinite;
}

/* ── Bounce ── */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-12px); }
  60% { transform: translateY(-6px); }
}

.bounce {
  animation: bounce 2s ease infinite;
}

/* ── Shimmer (for PB highlights) ── */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.shimmer {
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(251, 191, 36, 0.3) 50%,
    transparent 100%);
  background-size: 200% 100%;
  animation: shimmer 2s ease-in-out infinite;
}

/* ── Gold Flash (for PB results) ── */
@keyframes gold-flash {
  0%, 100% { box-shadow: 0 0 0 rgba(251, 191, 36, 0); }
  50% { box-shadow: 0 0 20px rgba(251, 191, 36, 0.4); }
}

.gold-flash {
  animation: gold-flash 2s ease-in-out infinite;
}

/* ── Glow Pulse ── */
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 5px var(--color-primary-glow); }
  50% { box-shadow: 0 0 25px var(--color-primary-glow), 0 0 50px var(--color-primary-glow); }
}

.glow-pulse {
  animation: glow-pulse 2s ease-in-out infinite;
}

/* ── Typing Effect ── */
@keyframes typing {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink-caret {
  from, to { border-color: transparent; }
  50% { border-color: var(--color-primary); }
}

.typewriter {
  overflow: hidden;
  white-space: nowrap;
  border-right: 3px solid var(--color-primary);
  animation: typing 3s steps(40, end), blink-caret 0.75s step-end infinite;
}

/* ── SVG Draw Animation ── */
@keyframes svg-draw {
  to { stroke-dashoffset: 0; }
}

.svg-draw {
  stroke-dasharray: var(--path-length, 1000);
  stroke-dashoffset: var(--path-length, 1000);
  animation: svg-draw 2s var(--ease-out) forwards;
}

/* ── Slide In Ticker ── */
@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slide-in-right var(--duration-slow) var(--ease-out) forwards;
}

/* ── Rotate In ── */
@keyframes rotate-in {
  from {
    opacity: 0;
    transform: rotate(-10deg) scale(0.8);
  }
  to {
    opacity: 1;
    transform: rotate(0) scale(1);
  }
}

/* ── Spotlight Effect ── */
@keyframes spotlight {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

.spotlight-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at var(--spotlight-x, 50%) var(--spotlight-y, 50%),
    transparent 0%,
    rgba(0, 0, 0, 0.85) 50%);
  z-index: var(--z-overlay);
  animation: spotlight var(--duration-normal) var(--ease-out);
  pointer-events: auto;
}

/* ── Running Shoe Spinner ── */
@keyframes shoe-bounce {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-20px) rotate(-10deg);
  }
  50% {
    transform: translateY(0) rotate(0deg);
  }
  75% {
    transform: translateY(-10px) rotate(5deg);
  }
}

@keyframes loading-dots {
  0%, 20% { content: '.'; }
  40% { content: '..'; }
  60%, 100% { content: '...'; }
}

/* ── Shoe Print Float (background for team section) ── */
@keyframes shoe-print-float {
  0% {
    transform: translateY(100%) rotate(var(--rotation, 15deg));
    opacity: 0;
  }
  10% {
    opacity: 0.08;
  }
  90% {
    opacity: 0.08;
  }
  100% {
    transform: translateY(-100vh) rotate(var(--rotation, 15deg));
    opacity: 0;
  }
}

/* ── Fire Streak Animation ── */
@keyframes fire-flicker {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: 1; }
  25% { transform: scale(1.1) rotate(-2deg); opacity: 0.9; }
  50% { transform: scale(0.95) rotate(1deg); opacity: 1; }
  75% { transform: scale(1.05) rotate(-1deg); opacity: 0.95; }
}

.fire-streak {
  animation: fire-flicker 0.5s ease-in-out infinite;
  color: #ef4444;
}

/* ── Scroll Indicator ── */
@keyframes scroll-indicator {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(12px); }
}

.scroll-indicator {
  animation: scroll-indicator 1.5s ease-in-out infinite;
}

/* ── Ken Burns Keyframes ── */
@keyframes ken-burns-1 {
  0% { transform: scale(1) translate(0, 0); }
  100% { transform: scale(1.15) translate(-2%, -1%); }
}

@keyframes ken-burns-2 {
  0% { transform: scale(1.05) translate(-1%, 0); }
  100% { transform: scale(1.2) translate(1%, -2%); }
}

@keyframes ken-burns-3 {
  0% { transform: scale(1) translate(0, -1%); }
  100% { transform: scale(1.1) translate(-1%, 1%); }
}

/* ── 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;
  }
}