/* ──────────────────────────────────────────────────────────────────────
   SWISH — midnight blacktop
   Sodium-amber floodlight, chalk lines, LED scoreboard.
   Display: Bungee · Numerals/body: IBM Plex Mono
   ────────────────────────────────────────────────────────────────────── */

:root {
  --ink: #0c0e13;
  --asphalt: #171a21;
  --panel: rgba(13, 15, 21, 0.82);
  --chalk: #f0ebe0;
  --chalk-dim: rgba(240, 235, 224, 0.55);
  --amber: #ffb454;
  --flame: #ff6a3d;
  --mint: #7ee8c7;
  --line: rgba(240, 235, 224, 0.16);
  --font-display: 'Bungee', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

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

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--ink);
  color: var(--chalk);
  font-family: var(--font-mono);
  -webkit-user-select: none;
  user-select: none;
}

#game {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: crosshair;
}

#cam {
  position: fixed;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* film grain + vignette over everything */
#hud::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 1;
}
#hud::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at 50% 42%, transparent 55%, rgba(4, 5, 9, 0.55) 100%);
  z-index: 1;
}

#hud > * { position: relative; z-index: 2; }

.hidden { display: none !important; }

/* ── top chrome ──────────────────────────────────────────────────────── */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
}

.brand {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--chalk);
  letter-spacing: 1px;
  text-shadow: 0 0 18px rgba(255, 180, 84, 0.35);
}
.brand-dot { color: var(--flame); }

.scoreboard {
  display: flex;
  gap: 2px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 6px 4px;
  backdrop-filter: blur(6px);
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.35s, transform 0.35s;
  pointer-events: none;
}
#hud.playing .scoreboard { opacity: 1; transform: none; }

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 64px;
  padding: 0 10px;
  border-right: 1px solid var(--line);
}
.stat:last-child { border-right: none; }

.stat-label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--chalk-dim);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 21px;
  line-height: 1.15;
  color: var(--amber);
  text-shadow: 0 0 14px rgba(255, 180, 84, 0.45);
}

.stat.hot .stat-value,
.stat:nth-child(2).hot .stat-value {
  color: var(--mint);
  text-shadow: 0 0 16px rgba(126, 232, 199, 0.6);
}

#score.bump { animation: bump 0.45s cubic-bezier(0.2, 2.2, 0.4, 1); }
@keyframes bump {
  0% { transform: scale(1); }
  35% { transform: scale(1.45); }
  100% { transform: scale(1); }
}

.controls { display: flex; gap: 8px; }

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--chalk);
  font-size: 16px;
  font-family: var(--font-mono);
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: border-color 0.15s, transform 0.1s;
}
.icon-btn:hover { border-color: var(--amber); }
.icon-btn:active { transform: scale(0.92); }

/* hide gameplay chrome on the menu */
#hud.menu-open .controls,
#hud.menu-open .scoreboard { visibility: hidden; }

/* ── center message ──────────────────────────────────────────────────── */
#message {
  position: fixed;
  top: 22%;
  left: 50%;
  transform: translate(-50%, 8px);
  text-align: center;
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.8);
}
#message.visible { opacity: 1; transform: translate(-50%, 0); }

#messageMain {
  font-family: var(--font-display);
  font-size: clamp(26px, 5vw, 44px);
  color: var(--chalk);
  letter-spacing: 2px;
}

#messageSub {
  margin-top: 6px;
  font-size: clamp(12px, 1.6vw, 15px);
  color: var(--amber);
  letter-spacing: 1px;
}

/* ── PiP camera view ─────────────────────────────────────────────────── */
#pip {
  position: fixed;
  right: 14px;
  bottom: calc(14px + env(safe-area-inset-bottom));
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: #000;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

#pipCanvas { display: block; width: 168px; height: 126px; }

#pipLabel {
  position: absolute;
  left: 0; right: 0; top: 0;
  padding: 3px 8px;
  font-size: 10px;
  letter-spacing: 1px;
  background: linear-gradient(rgba(0,0,0,0.65), transparent);
  color: var(--chalk);
}

/* ── toasts ──────────────────────────────────────────────────────────── */
#toasts {
  position: fixed;
  bottom: calc(18px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 13px;
  backdrop-filter: blur(6px);
  animation: toast-in 0.3s cubic-bezier(0.2, 1.4, 0.4, 1);
  transition: opacity 0.4s, transform 0.4s;
  max-width: min(92vw, 480px);
}
.toast.out { opacity: 0; transform: translateY(8px); }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(12px); }
}

/* ── overlays (menu / pause / help) ──────────────────────────────────── */
.overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(6, 7, 12, 0.6);
  backdrop-filter: blur(7px);
  overflow-y: auto;
  padding: 24px 16px;
}

.menu-card {
  width: min(520px, 94vw);
  text-align: center;
  padding: 36px 28px 28px;
  background: linear-gradient(165deg, rgba(20, 23, 32, 0.92), rgba(12, 14, 19, 0.94));
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.65),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}
.menu-card.slim { width: min(380px, 94vw); }

.title {
  font-family: var(--font-display);
  font-size: clamp(52px, 11vw, 84px);
  line-height: 1;
  letter-spacing: 2px;
  background: linear-gradient(175deg, #ffd9a0 10%, var(--amber) 45%, var(--flame) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 26px rgba(255, 140, 60, 0.3));
  animation: title-in 0.6s cubic-bezier(0.2, 1.4, 0.4, 1) both;
}
.title.small { font-size: clamp(26px, 6vw, 38px); }
.title-dot { color: var(--flame); -webkit-text-fill-color: var(--flame); }

@keyframes title-in {
  from { opacity: 0; transform: translateY(14px) scale(0.97); }
}

.tagline {
  margin: 10px 0 30px;
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--chalk-dim);
  animation: title-in 0.6s 0.08s cubic-bezier(0.2, 1.4, 0.4, 1) both;
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  animation: title-in 0.6s 0.16s cubic-bezier(0.2, 1.4, 0.4, 1) both;
}

.big-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 15px 20px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--chalk);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: transform 0.12s, border-color 0.15s, background 0.15s, box-shadow 0.15s;
}
.big-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  border-color: var(--amber);
  box-shadow: 0 8px 26px rgba(255, 140, 60, 0.12);
}
.big-btn:active:not(:disabled) { transform: translateY(0) scale(0.99); }
.big-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.big-btn.primary {
  background: linear-gradient(135deg, rgba(255, 106, 61, 0.16), rgba(255, 180, 84, 0.1));
  border-color: rgba(255, 150, 70, 0.45);
}

.big-btn-icon { font-size: 26px; }

.big-btn-text { display: flex; flex-direction: column; flex: 1; }
.big-btn-text small {
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--chalk-dim);
  margin-top: 2px;
}
.menu-card.slim .big-btn-text,
#help .big-btn-text { text-align: center; }

.toggle {
  margin-top: 18px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--chalk-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.toggle:hover { border-color: var(--amber); }
.toggle .toggle-state { color: var(--mint); font-weight: 600; }
.toggle[data-on="false"] .toggle-state { color: var(--flame); }

#menuStatus {
  min-height: 20px;
  margin-top: 16px;
  font-size: 12.5px;
  color: var(--chalk-dim);
}
#menuStatus.error { color: var(--flame); }

.menu-foot {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--chalk-dim);
}

/* ── help ────────────────────────────────────────────────────────────── */
.help-block {
  text-align: left;
  margin: 18px 0;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.help-block h3 {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 1px;
  color: var(--amber);
  margin-bottom: 10px;
}

.help-block ol { margin-left: 20px; }
.help-block li { font-size: 13.5px; line-height: 1.65; }
.help-block li strong, .help-tip strong { color: var(--amber); font-weight: 600; }

.help-tip {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--chalk-dim);
}

#btnCloseHelp { margin-top: 4px; justify-content: center; }

/* ── responsive ──────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .brand { display: none; }
  .scoreboard { padding: 4px 2px; }
  .stat { min-width: 50px; padding: 0 6px; }
  .stat-value { font-size: 16px; }
  .icon-btn { width: 34px; height: 34px; font-size: 14px; }
  #pipCanvas { width: 120px; height: 90px; }
  .menu-foot { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}