:root {
  --bg: #07080c;
  --panel: rgba(8, 10, 16, 0.88);
  --text: #e8e4dc;
  --muted: #9a9488;
  --crimson: #c41e3a;
  --line: rgba(196, 30, 58, 0.35);
  --accent: #7dffb3;
  font-family: "Segoe UI", "Trebuchet MS", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

.app {
  position: relative;
  width: 100vw;
  height: 100dvh;
  display: grid;
  place-items: center;
  touch-action: none;
  background:
    radial-gradient(ellipse at 50% 20%, rgba(196, 30, 58, 0.12), transparent 55%),
    var(--bg);
}

.app:fullscreen,
.app:-webkit-full-screen {
  width: 100vw;
  height: 100vh;
  max-height: 100vh;
  background: #000;
}

.app:fullscreen #game,
.app:-webkit-full-screen #game {
  max-width: 100vw;
  max-height: 100vh;
}

#game {
  display: block;
  max-width: 100vw;
  max-height: 100dvh;
  width: auto;
  height: auto;
  background: #000;
  box-shadow: 0 0 0 1px var(--line);
  touch-action: none;
}

.rotate-gate {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-content: center;
  gap: 0.5rem;
  text-align: center;
  background: var(--bg);
  padding: 2rem;
}

.rotate-gate[hidden] {
  display: none;
}

.rotate-gate p {
  margin: 0;
  font-size: 1.4rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--crimson);
}

.rotate-gate span {
  color: var(--muted);
  font-size: 0.95rem;
}

.overlay,
.hs-entry {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.55);
  padding: 1rem;
  z-index: 10;
}

.overlay[hidden],
.hs-entry[hidden] {
  display: none;
}

.overlay-panel {
  width: min(420px, 94vw);
  max-height: 92dvh;
  overflow: auto;
  padding: 1.25rem 1.35rem 1.5rem;
  background: var(--panel);
  border: 1px solid var(--line);
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.overlay-panel h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  letter-spacing: 0.04em;
}

.tagline {
  margin: 0 0 1.1rem;
  color: var(--crimson);
  letter-spacing: 0.06em;
}

.btn-play,
.btn-ghost,
.touch-btn,
.hs-keys button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(196, 30, 58, 0.2);
}

.btn-play {
  padding: 0.65rem 1.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--crimson);
  border-color: transparent;
  color: #fff;
}

.btn-play:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-ghost {
  padding: 0.5rem 0.9rem;
  background: transparent;
}

.controls-help {
  margin: 0.9rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.controls-help p {
  margin: 0.2rem 0;
}

.board {
  margin-top: 1.1rem;
  text-align: left;
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
}

.board h2 {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.board ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.board li {
  display: grid;
  grid-template-columns: 1.5rem 3rem 1fr;
  gap: 0.5rem;
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
  padding: 0.15rem 0;
}

.board .muted {
  color: var(--muted);
  display: block;
}

.hs-score {
  font-size: 1.35rem;
  color: var(--accent);
  margin: 0.25rem 0 0.75rem;
}

.hs-display {
  font-size: 2rem;
  letter-spacing: 0.35em;
  margin: 0.5rem 0 0.85rem;
  font-variant-numeric: tabular-nums;
}

.hs-keys {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 0.3rem;
  margin-bottom: 0.85rem;
}

.hs-keys button {
  padding: 0.45rem 0;
  min-height: 2.4rem;
  font-size: 16px; /* iOS won't zoom-on-focus below 16px */
  background: rgba(255, 255, 255, 0.06);
  touch-action: manipulation;
}

.hs-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.touch-hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
}

.touch-hud[hidden] {
  display: none;
}

.joystick,
.touch-fire {
  pointer-events: auto;
  position: absolute;
  bottom: max(0.85rem, env(safe-area-inset-bottom));
}

.joystick {
  left: max(0.85rem, env(safe-area-inset-left));
  width: 7.5rem;
  height: 7.5rem;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

.joystick-base {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.4);
  border: 2px solid rgba(232, 228, 220, 0.35);
  box-shadow: inset 0 0 0 1px rgba(196, 30, 58, 0.25);
}

.joystick-knob {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 3rem;
  height: 3rem;
  margin: -1.5rem 0 0 -1.5rem;
  border-radius: 50%;
  background: rgba(196, 30, 58, 0.75);
  border: 2px solid rgba(255, 255, 255, 0.35);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
  will-change: transform;
}

.touch-fire {
  right: max(0.85rem, env(safe-area-inset-right));
  min-width: 5.5rem;
  min-height: 5.5rem;
  border-radius: 50%;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.08em;
  background: rgba(196, 30, 58, 0.55);
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
}

.touch-btn {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line);
  color: var(--text);
  touch-action: manipulation;
}

.touch-btn:active,
.hs-keys button:active {
  background: rgba(196, 30, 58, 0.7);
}

@media (pointer: fine) {
  .touch-hud {
    display: none !important;
  }
  .controls-help .mob {
    display: none;
  }
}

@media (pointer: coarse) {
  .controls-help .desk {
    display: none;
  }
}