:root {
  --bg: #070714;
  --panel: rgba(10, 10, 24, 0.78);
  --border: rgba(120, 190, 255, 0.28);
  --text: rgba(235, 245, 255, 0.92);
  --muted: rgba(235, 245, 255, 0.72);
  --neon: rgba(80, 200, 255, 1);
  --neon2: rgba(210, 120, 255, 1);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
}

canvas#game {
  width: 100%;
  height: 100%;
  display: block;
}

.overlay,
.pause {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: radial-gradient(1200px 800px at 50% 40%, rgba(60, 120, 255, 0.12), rgba(0, 0, 0, 0.6));
  backdrop-filter: blur(2px);
}

.panel {
  width: min(980px, 96vw);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 18px 14px;
  background: var(--panel);
  box-shadow: 0 0 40px rgba(50, 160, 255, 0.12);
}

h1,
h2,
h3 {
  margin: 0 0 10px;
  font-weight: 700;
}

p {
  margin: 8px 0 12px;
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 12px;
}

.cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

ul {
  margin: 10px 0 12px;
  padding-left: 18px;
}

li {
  margin: 6px 0;
}

button {
  appearance: none;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 650;
  cursor: pointer;
  color: var(--text);
  background: rgba(30, 50, 90, 0.35);
}

button.primary {
  border-color: rgba(120, 220, 255, 0.5);
  background: linear-gradient(90deg, rgba(35, 120, 210, 0.72), rgba(90, 70, 210, 0.7));
  box-shadow: 0 0 18px rgba(80, 200, 255, 0.18);
}

button.ghost {
  background: rgba(30, 50, 90, 0.18);
}

button:focus-visible {
  outline: 2px solid rgba(120, 220, 255, 0.6);
  outline-offset: 2px;
}

.hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  justify-content: space-between;
  padding: 12px 14px;
  font-size: 14px;
  text-shadow: 0 0 10px rgba(80, 200, 255, 0.25);
}

.hud-row {
  display: flex;
  gap: 8px;
  align-items: baseline;
}

.label {
  color: rgba(235, 245, 255, 0.68);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 11px;
}

.hud-left,
.hud-right {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hud-right {
  align-items: flex-end;
}

.hidden {
  display: none;
}

.mapping pre {
  margin: 0;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(120, 190, 255, 0.25);
  background: rgba(0, 0, 0, 0.25);
  overflow: auto;
  max-height: 220px;
}

@media (max-width: 860px) {
  .cols {
    grid-template-columns: 1fr;
  }
}

/* Virtual joystick overlay — hidden until touch activates it */
.joystick-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 200;
  opacity: 0;
  transition: opacity 0.12s;
}

.joystick-overlay.visible {
  opacity: 1;
}

.joystick-base {
  position: absolute;
  width: 120px;
  height: 120px;
  margin-left: -60px;
  margin-top: -60px;
  border-radius: 50%;
  border: 2px solid rgba(80, 200, 255, 0.3);
  background: rgba(20, 40, 80, 0.18);
  box-shadow: 0 0 24px rgba(80, 200, 255, 0.08);
  pointer-events: none;
}

.joystick-knob {
  position: absolute;
  width: 48px;
  height: 48px;
  margin-left: -24px;
  margin-top: -24px;
  border-radius: 50%;
  border: 2px solid rgba(80, 200, 255, 0.6);
  background: rgba(50, 140, 255, 0.35);
  box-shadow: 0 0 18px rgba(80, 200, 255, 0.25), inset 0 0 10px rgba(80, 200, 255, 0.12);
  pointer-events: none;
}

/* Fullscreen prompt for iOS */
.fs-prompt {
  position: fixed;
  bottom: max(16px, env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 13px;
  z-index: 300;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 0 20px rgba(50, 160, 255, 0.12);
  white-space: nowrap;
}

.fs-prompt-btn {
  appearance: none;
  border: none;
  background: none;
  color: var(--muted);
  font-size: 18px;
  cursor: pointer;
  padding: 2px 6px;
  line-height: 1;
}