/* CHOMP! — fullscreen canvas + DOM HUD overlay (TECH.md: HUD is DOM, not canvas) */

:root {
  --safe-top: 0px; /* set via window.Chomp.setSafeTop(px) for portfolio embeds */
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #0A0E14; /* cave near-black blue (ART_BIBLE palette) */
}

#game {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  outline: none;
}

#hud {
  position: fixed;
  inset: 0;
  padding-top: var(--safe-top);
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
  color: #7FCFC0; /* fur teal rim */
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* Darkness placeholder (MD-02) — real per-stage light radius arrives MD-06 */
#vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 30%, rgba(4, 6, 10, 0.85) 100%);
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  text-align: center;
}

.overlay h1 {
  font-size: clamp(2.5rem, 10vw, 6rem);
  font-weight: 900;
  letter-spacing: 0.12em;
  color: #7FCFC0;
  text-shadow: 0 0 24px rgba(77, 168, 154, 0.5);
}

#dead-cause {
  font-size: 1.1rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: #FF7A30;
}

.overlay .hint {
  font-size: 1rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #4DA89A;
  animation: hint-pulse 1.6s ease-in-out infinite;
}

@keyframes hint-pulse {
  0%, 100% { opacity: 0.45; }
  50% { opacity: 1; }
}

#debug {
  position: absolute;
  top: calc(var(--safe-top) + 8px);
  left: 8px;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 12px;
  line-height: 1.5;
  color: #C8E84A; /* acid green */
  white-space: pre;
}

.hidden {
  display: none !important;
}

/* Growth progress bar (bottom centre) */
#growth {
  position: absolute;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%);
  width: min(46%, 520px);
  height: 18px;
  background: rgba(10, 14, 20, 0.75);
  border: 1px solid rgba(127, 207, 192, 0.4);
  border-radius: 9px;
  overflow: hidden;
}

#growth-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #2E7D74, #4DA89A, #C8E84A);
  border-radius: 5px;
  transition: width 120ms linear;
}

#growth-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 12px;
  letter-spacing: 0.15em;
  color: #EAF6F2;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

/* Sprint bar — thin strip above the growth bar */
#sprint {
  position: absolute;
  bottom: 58px;
  left: 50%;
  transform: translateX(-50%);
  width: min(26%, 280px);
  height: 8px;
  background: rgba(10, 14, 20, 0.75);
  border: 1px solid rgba(255, 210, 63, 0.35);
  border-radius: 3px;
  overflow: hidden;
}

#sprint-fill {
  height: 100%;
  width: 100%;
  background: #FFD23F;
  border-radius: 2px;
}

#sprint.low #sprint-fill {
  background: #FF7A30;
}

/* HP bar — red, above the sprint bar */
#hp {
  position: absolute;
  bottom: 74px;
  left: 50%;
  transform: translateX(-50%);
  width: min(26%, 280px);
  height: 8px;
  background: rgba(10, 14, 20, 0.75);
  border: 1px solid rgba(255, 90, 60, 0.45);
  border-radius: 3px;
  overflow: hidden;
}

#hp-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #C43A2E, #FF5A3C);
  border-radius: 2px;
  transition: width 200ms ease-out;
}

/* Gobble counter — top centre, LARGE bold */
#gobble {
  position: absolute;
  top: calc(var(--safe-top) + 14px);
  left: 50%;
  transform: translateX(-50%);
  font-size: 56px;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: #EAF6F2;
  text-shadow: 0 0 18px rgba(200, 232, 74, 0.45), 0 2px 4px rgba(0, 0, 0, 0.8);
}

#gobble.pop {
  animation: gobble-pop 0.25s ease-out;
}

@keyframes gobble-pop {
  0% { transform: translateX(-50%) scale(1.35); }
  100% { transform: translateX(-50%) scale(1); }
}

/* Evolve banner */
#stage-banner {
  position: absolute;
  top: 30%;
  left: 0;
  right: 0;
  text-align: center;
  font-size: clamp(1.6rem, 5vw, 3rem);
  font-weight: 900;
  letter-spacing: 0.2em;
  color: #C8E84A;
  text-shadow: 0 0 24px rgba(200, 232, 74, 0.6);
  opacity: 0;
}

#stage-banner.show {
  animation: banner-pop 1.6s ease-out forwards;
}

@keyframes banner-pop {
  0% { opacity: 0; transform: scale(0.7); }
  12% { opacity: 1; transform: scale(1.08); }
  22% { transform: scale(1); }
  75% { opacity: 1; }
  100% { opacity: 0; }
}

/* Damage flash — red vignette pulse */
#damage-flash {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(255, 60, 40, 0.45) 100%);
  opacity: 0;
}

#damage-flash.show {
  animation: dmg-pulse 0.4s ease-out;
}

@keyframes dmg-pulse {
  0% { opacity: 1; }
  100% { opacity: 0; }
}

/* Debug GUI panels (?debug=1, MD-04b) — interactive islands in the HUD */
.debug-panel {
  position: absolute;
  pointer-events: auto;
  display: flex;
  gap: 4px;
  align-items: center;
  padding: 6px;
  background: rgba(10, 14, 20, 0.75);
  border: 1px solid rgba(200, 232, 74, 0.25);
  border-radius: 4px;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 13px;
  color: #C8E84A;
}

#debug-stages {
  top: calc(var(--safe-top) + 20px);
  right: 20px;
  flex-direction: column;
}

#debug-stages button {
  all: unset;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 3px;
  color: #C8E84A;
  font: inherit;
  text-align: center;
}

#debug-stages button:hover {
  background: rgba(200, 232, 74, 0.15);
}

#debug-stages button.active {
  background: rgba(200, 232, 74, 0.3);
  color: #0A0E14;
  font-weight: 700;
}

#debug-zoom {
  bottom: 24px;
  right: 20px;
}

#debug-zoom input[type='range'] {
  width: 120px;
  accent-color: #C8E84A;
}

#debug-zoom span {
  min-width: 3ch;
}