:root {
  --bg: #071019;
  --panel: #0c1626;
  --text: #eaf7ff;
  --accent: #00ffd1; /* neon cyan */
  --accent2: #7a00ff; /* neon violet */
  --accent-glow: rgba(0, 255, 209, 0.45);
  --accent-gold: #ffd166; /* gold accent */
  --danger: #ff3b3b;
  --success: #38ff14;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, Arial, sans-serif; background: radial-gradient(1300px circle at 20% -10%, rgba(0,255,209,0.08), transparent 40%), radial-gradient(900px circle at 85% 120%, rgba(122,0,255,0.08), transparent 40%), var(--bg); color: var(--text); }
header { padding: 10px 16px; background: linear-gradient(180deg, rgba(12,22,38,0.95), rgba(12,22,38,0.75)); border-bottom: 1px solid rgba(0,255,209,0.18); box-shadow: 0 10px 30px rgba(0,255,209,0.06); display: flex; align-items: center; justify-content: space-between; }
h1 { margin: 0; font-size: 18px; }
.room-info span { margin-right: 12px; }
.controls { display: flex; gap: 10px; align-items: center; }
/* Center controls on controller page */
.controller .controls { justify-content: center; }
button { background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%); color: #0b1218; border: 1px solid rgba(255,255,255,0.14); padding: 10px 14px; border-radius: 10px; font-weight: 700; cursor: pointer; box-shadow: 0 0 14px var(--accent-glow), inset 0 0 10px rgba(255,255,255,0.08); }
button:hover { box-shadow: 0 0 18px var(--accent-glow), inset 0 0 12px rgba(255,255,255,0.12); filter: brightness(1.06); }
button:focus { outline: none; border-color: rgba(0,255,209,0.55); }
button.big { padding: 16px 22px; font-size: 18px; }
button:disabled { opacity: 0.6; cursor: not-allowed; }

main { display: grid; grid-template-columns: 280px 1fr; gap: 14px; padding: 14px; }
/* On controller page, stack sections vertically so controls sit below image */
.controller main { grid-template-columns: 1fr; }
/* When race starts on host, expand canvas to full width */
main.full { grid-template-columns: 1fr; }
.qr { background: var(--panel); padding: 12px; border-radius: 12px; text-align: center; }
.qr img { width: 100%; height: auto; background: white; padding: 8px; border-radius: 8px; }
.canvas-wrap { background: radial-gradient(700px circle at 20% 20%, rgba(0,255,209,0.06), transparent 50%), #071019; border-radius: 12px; overflow: hidden; display: flex; align-items: center; justify-content: center; position: relative; box-shadow: 0 12px 28px rgba(0,0,0,0.45), 0 0 22px rgba(0,255,209,0.08); }
canvas { width: 100%; height: auto; background: #6b8e23; }
/* On controller pages, avoid stretching the game image on desktop; keep natural size */
.controller canvas { width: auto; max-width: 100%; height: auto; background: transparent; max-height: 100%; }
/* Center mini-map canvas on controller */
.controller .mini-map { display: flex; justify-content: center; }
/* Constrain canvas area on controller to viewport so controls sit closer */
.controller .canvas-wrap { max-height: 80vh; }

/* Hide QR elements but keep Players list visible when toggled */
.qr.hidden h2,
.qr.hidden #qrImg,
.qr.hidden #joinUrl,
.qr.hidden .credit { display: none; }

/* Centered credit text below QR heading on host */
.qr .credit { text-align: center; margin: 6px 0 10px; opacity: 0.9; }
/* Center join URL under QR and prevent overflow */
.qr #joinUrl { text-align: center; font-size: 14px; margin: 8px 0; word-break: break-all; overflow-wrap: anywhere; }
@media (max-width: 480px) {
  .qr #joinUrl { font-size: 12px; }
}

.join { display: grid; grid-template-columns: 1fr auto; gap: 8px; padding: 12px; }
.join input { padding: 10px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.18); background: #05141c; color: var(--text); box-shadow: inset 0 0 10px rgba(0,0,0,0.35); }
.join input:focus { outline: none; border-color: rgba(0,255,209,0.6); box-shadow: 0 0 14px var(--accent-glow), inset 0 0 12px rgba(255,255,255,0.08); }
.pad { display: flex; gap: 12px; justify-content: center; margin: 10px 0; }
.control { min-width: 90px; min-height: 60px; font-size: 20px; }
.hint { text-align: center; opacity: 0.8; }

@media (max-width: 820px) {
  main { grid-template-columns: 1fr; }
}
.overlay-controls { position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.overlay-controls .pad { position: absolute; display: flex; gap: 10px; }
.overlay-controls .pad-left { left: 8px; top: 50%; transform: translateY(-50%); flex-direction: column; }
.overlay-controls .pad-right { right: 8px; top: 50%; transform: translateY(-50%); flex-direction: column; }
.overlay-controls .pad-center { left: 50%; bottom: 12px; transform: translateX(-50%); }
.overlay-controls .control { pointer-events: auto; min-width: 64px; min-height: 64px; font-size: 22px; background: rgba(0,255,209,0.25); border: 1px solid rgba(0,255,209,0.5); color: #eaf7ff; border-radius: 12px; backdrop-filter: blur(2px); box-shadow: 0 0 12px rgba(0,255,209,0.35); }
.overlay-controls .control.special { min-width: 140px; min-height: 64px; font-size: 18px; background: rgba(255, 209, 102, 0.25); border-color: rgba(255,209,102,0.5); color: #fff; box-shadow: 0 0 12px rgba(255,209,102,0.35); }
.overlay-controls .control:active { background: rgba(0,255,209,0.45); }
@media (max-width: 480px) {
  .overlay-controls .control { min-width: 56px; min-height: 56px; font-size: 20px; }
  .overlay-controls .control.special { min-width: 120px; min-height: 56px; font-size: 16px; }
}
/* SVG icons inside control buttons */
.overlay-controls .control .icon { width: 28px; height: 28px; display: block; fill: currentColor; }
@media (max-width: 480px) {
  .overlay-controls .control .icon { width: 24px; height: 24px; }
}

/* Beta banner (host) */
.beta-banner {
  margin: 12px 16px;
  padding: 12px 16px;
  border-radius: 10px;
  background: rgba(12,22,38,0.9);
  border: 1px solid rgba(0,255,209,0.14);
  box-shadow: 0 6px 18px rgba(0,0,0,0.35), 0 0 16px rgba(0,255,209,0.06);
}
.beta-banner strong { color: var(--accent-gold); }
.beta-banner a { color: var(--accent-gold); text-decoration: underline; }
/* Beta modal overlay */
.beta-modal { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,0.55); z-index: 1000; }
.beta-modal .panel { background: var(--panel); color: var(--text); width: min(560px, 92vw); padding: 18px 20px; border-radius: 14px; box-shadow: 0 10px 24px rgba(0,0,0,0.45), 0 0 22px rgba(0,255,209,0.09); border: 1px solid rgba(0,255,209,0.18); text-align: center; }
.beta-modal .panel h2 { margin: 0 0 10px; font-size: 20px; }
.beta-modal .panel p { margin: 0 0 16px; line-height: 1.4; }
.beta-modal .panel a { color: #ffd166; text-decoration: underline; }
.beta-modal .actions { display: flex; justify-content: center; }

/* How To Play modal overlay */
.howto-modal { position: fixed; inset: 0; display: none; align-items: center; justify-content: center; background: rgba(0,0,0,0.55); z-index: 1000; }
.howto-modal .panel { background: var(--panel); color: var(--text); width: min(720px, 94vw); max-height: 80vh; overflow: auto; padding: 18px 20px; border-radius: 14px; box-shadow: 0 10px 24px rgba(0,0,0,0.45), 0 0 22px rgba(0,255,209,0.09); border: 1px solid rgba(0,255,209,0.18); }
.howto-modal .panel h3 { margin: 16px 0 8px; font-size: 18px; color: var(--accent-gold); }
.howto-modal .panel p { margin: 0 0 12px; line-height: 1.5; }
.howto-modal .panel ul { margin: 0 0 10px 20px; padding: 0; }
.howto-modal .panel li { margin: 6px 0; }
.howto-modal .panel code, .howto-modal .panel em { background: rgba(255,255,255,0.08); padding: 1px 5px; border-radius: 6px; }
.howto-modal .actions { display: flex; justify-content: center; margin-top: 16px; }

/* Game clock above Players */
.game-clock {
  margin: 6px 0 10px;
  padding: 10px 12px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0,255,209,0.22), rgba(122,0,255,0.18));
  border: 1px solid rgba(255,255,255,0.18);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.45);
}
.game-clock.warn {
  animation: pulse 1s infinite;
  background: linear-gradient(135deg, rgba(255,82,82,0.35), rgba(255,209,102,0.25));
  border-color: rgba(255,82,82,0.55);
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255,82,82,0.6); }
  70% { box-shadow: 0 0 0 12px rgba(255,82,82,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,82,82,0); }
}
.controls { position: relative; }
.audio-panel { position: absolute; top: calc(100% + 8px); right: 0; display: none; background: var(--panel); color: var(--text); padding: 10px 12px; border-radius: 12px; box-shadow: 0 10px 24px rgba(0,0,0,0.45), 0 0 16px rgba(0,255,209,0.08); border: 1px solid rgba(0,255,209,0.18); z-index: 1000; min-width: 280px; }
.audio-panel::before { content: ""; position: absolute; top: -8px; right: 22px; border-width: 8px; border-style: solid; border-color: transparent transparent rgba(12,22,38,0.95) transparent; }
.audio-panel .volume-control { display: inline-flex; align-items: center; gap: 8px; margin-left: 8px; }
.audio-panel input[type="range"] { width: 150px; }
.audio-panel .volume-control { display: inline-flex; align-items: center; gap: 8px; margin-left: 8px; }
.audio-panel input[type="range"] { width: 150px; }