/* Zahra’s Hallow — crimson moonlight Y2K platformer */
:root {
  --crimson: #8b0a1a;
  --blood: #c41e3a;
  --ink: #0a0204;
  --moon: #c8d0dc;
  --grey: #6a7380;
  --panel: rgba(18, 4, 8, 0.94);
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-text-size-adjust: 100%;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
}

body {
  min-height: 100dvh;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace, system-ui;
  color: var(--moon);
  background:
    radial-gradient(ellipse at 70% 10%, rgba(200, 210, 230, 0.12), transparent 40%),
    radial-gradient(ellipse at 20% 80%, rgba(139, 10, 26, 0.35), transparent 50%),
    linear-gradient(180deg, #120508 0%, #1a0508 40%, #0a0204 100%);
}

button { font: inherit; color: inherit; }

.app {
  height: 100dvh;
  height: 100svh;
  display: flex;
  flex-direction: column;
  padding: calc(8px + var(--safe-t)) 12px calc(8px + var(--safe-b));
  max-width: 520px;
  margin: 0 auto;
}

.top { text-align: center; flex: 0 0 auto; }
.eyebrow {
  margin: 0;
  font-size: 0.45rem;
  letter-spacing: 0.14em;
  color: var(--blood);
}
h1 {
  margin: 6px 0 2px;
  font-size: clamp(0.85rem, 4.2vw, 1.15rem);
  color: #ff3a55;
  text-shadow: 0 0 12px rgba(196, 30, 58, 0.7), 2px 2px 0 #400010;
}
.subtitle {
  margin: 0 0 8px;
  font-size: 0.5rem;
  color: var(--grey);
  letter-spacing: 0.06em;
}

.hud {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.chip {
  background: rgba(20, 4, 8, 0.85);
  border: 2px solid #5a1020;
  border-radius: 8px;
  padding: 5px 2px 6px;
  box-shadow: 0 2px 0 #2a0810;
}
.chip .k {
  display: block;
  font-size: 0.38rem;
  letter-spacing: 0.08em;
  color: var(--grey);
  margin-bottom: 3px;
}
.chip span:last-child {
  font-size: 0.7rem;
  color: #ff6a7e;
}

.stage {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  margin-top: 8px;
}

.playfield {
  position: relative;
  flex: 0 1 auto;
  width: 100%;
  /* Lock aspect so iOS never gives the canvas a tall flex box → huge bitmap */
  aspect-ratio: 480 / 320;
  max-height: min(56dvh, 420px);
  min-height: 160px;
  border-radius: 14px;
  overflow: hidden;
  border: 3px solid #5a1020;
  box-shadow:
    0 0 0 2px #1a0508,
    0 0 16px rgba(196, 30, 58, 0.2);
  background: #0a0204;
}

#game {
  display: block;
  width: 100%;
  height: 100%;
  /* avoid pixelated compositing cost on large CSS-scaled layers in iOS Safari */
  image-rendering: auto;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(6, 1, 3, 0.82);
  z-index: 5;
  padding: 12px;
}
.overlay.hidden { display: none; }

.panel {
  width: min(100%, 340px);
  background: var(--panel);
  border: 3px solid #8b0a1a;
  border-radius: 12px;
  padding: 16px 14px 14px;
  text-align: center;
  box-shadow: 0 0 0 2px #2a0810, 0 12px 28px rgba(0, 0, 0, 0.55);
}
.bat { font-size: 2rem; margin-bottom: 4px; }
.panel-kicker {
  margin: 0;
  font-size: 0.42rem;
  letter-spacing: 0.12em;
  color: var(--blood);
  text-transform: uppercase;
}
.panel h2 {
  margin: 8px 0 6px;
  font-size: 0.72rem;
  color: #ff4a62;
  line-height: 1.35;
}
.panel-copy {
  margin: 0 0 12px;
  font-size: 0.42rem;
  line-height: 1.7;
  color: var(--moon);
}

.mode-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-bottom: 6px;
}
.mode-btn {
  appearance: none;
  border: 2px solid #5a1020;
  background: #1a080c;
  color: var(--moon);
  border-radius: 8px;
  padding: 8px 2px;
  font-size: 0.48rem;
  cursor: pointer;
}
.mode-btn.active {
  background: linear-gradient(180deg, #c41e3a, #8b0a1a);
  border-color: #ff6a7e;
  color: #fff;
  box-shadow: 0 0 12px rgba(196, 30, 58, 0.45);
}
.mode-hint {
  margin: 0 0 12px;
  font-size: 0.38rem;
  color: var(--grey);
  letter-spacing: 0.04em;
}
.mode-row.hidden, .mode-hint.hidden { display: none; }

.play {
  appearance: none;
  width: 100%;
  border: 3px solid #ff6a7e;
  background: linear-gradient(180deg, #e02848, #8b0a1a);
  color: #fff;
  border-radius: 10px;
  padding: 12px 10px;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  box-shadow: 0 4px 0 #400010, 0 0 18px rgba(196, 30, 58, 0.4);
}
.play:active { transform: translateY(2px); box-shadow: 0 2px 0 #400010; }

.scare {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: none;
  place-items: center;
  background: #1a0000;
  flex-direction: column;
  /* no filter / no transform shake — those + canvas underlay froze iPhone GPU */
}
.scare.on {
  display: flex;
  animation: scareFlash 0.15s steps(2) 4;
}
.scare.red { background: #0a0000; }
#scare-face {
  width: min(55%, 160px);
  height: auto;
  image-rendering: auto;
}
.scare-msg {
  margin: 12px 0 0;
  font-size: 0.85rem;
  color: #ff2030;
  text-shadow: 2px 2px 0 #000;
  letter-spacing: 0.08em;
}
@keyframes scareFlash {
  0%, 100% { background: #1a0000; }
  50% { background: #fff; }
}

.controls {
  flex: 0 0 auto;
  margin-top: 10px;
  text-align: center;
}
.pad-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1.4fr;
  gap: 8px;
}
.pad {
  appearance: none;
  border: 3px solid #5a1020;
  background: linear-gradient(180deg, #2a0c14, #140508);
  color: #ff8a98;
  border-radius: 14px;
  min-height: 56px;
  font-size: 0.85rem;
  cursor: pointer;
  box-shadow: 0 4px 0 #2a0810;
  -webkit-tap-highlight-color: transparent;
  touch-action: none;
}
.pad:active, .pad.held {
  transform: translateY(2px);
  box-shadow: 0 2px 0 #2a0810;
  background: linear-gradient(180deg, #5a1424, #2a0c14);
  color: #fff;
}
.pad.jump {
  font-size: 0.55rem;
  letter-spacing: 0.06em;
  color: #fff;
  border-color: #8b0a1a;
  background: linear-gradient(180deg, #c41e3a, #5a0a14);
}
.hint {
  margin: 8px 0 0;
  font-size: 0.38rem;
  color: var(--grey);
  letter-spacing: 0.04em;
}

.footer {
  flex: 0 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  font-size: 0.38rem;
  color: var(--grey);
}
.footer a {
  color: #ff6a7e;
  text-decoration: none;
}
.footer a:hover { text-decoration: underline; }

@media (min-width: 600px) {
  .app { max-width: 560px; }
  .pad { min-height: 64px; }
}

/* ios4 build chip — confirms which bundle Mom loaded */
.build-tag {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 6px;
  font-size: 9px;
  letter-spacing: 0.06em;
  color: var(--grey);
  border: 1px solid rgba(106, 115, 128, 0.45);
  border-radius: 999px;
  opacity: 0.85;
}