/* ============================================================
   Voxel Velocity – Complete Visual Overhaul
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Rajdhani:wght@300;400;500;600;700&family=Share+Tech+Mono&display=swap');

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

:root {
  --primary: #ff6b35;
  --primary-glow: rgba(255, 107, 53, 0.35);
  --primary-dark: #c44d1a;
  --secondary: #00d4ff;
  --secondary-glow: rgba(0, 212, 255, 0.25);
  --accent: #ffd700;
  --accent-glow: rgba(255, 215, 0, 0.3);
  --bg-dark: #06060f;
  --bg-mid: #0c0c1e;
  --bg-card: #111126;
  --bg-card-hover: #181840;
  --glass: rgba(14, 14, 36, 0.75);
  --glass-border: rgba(255, 255, 255, 0.07);
  --text: #eeeeff;
  --text-dim: #6a6a90;
  --text-muted: #3d3d5c;
  --success: #00e676;
  --danger: #ff1744;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
}

body {
  font-family: 'Rajdhani', sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  overflow: hidden;
  width: 100vw;
  height: 100vh;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

#game-container {
  position: relative;
  width: 100%;
  height: 100%;
}

#game-canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  touch-action: none;  /* prevent scroll/zoom ONLY on the game canvas */
}

/* touch-action: none only on the canvas itself, NOT on menus */

/* ==========  MENU SCREENS  ========== */

.menu-screen {
  position: fixed;
  inset: 0;
  display: none;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  touch-action: pan-y;          /* ALLOW vertical scrolling on menus */
  background:
    radial-gradient(ellipse at 30% 20%, rgba(255,107,53,0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(0,212,255,0.04) 0%, transparent 50%),
    rgba(6, 6, 15, 0.95);
  backdrop-filter: blur(20px) saturate(1.3);
  animation: screenFadeIn 0.25s ease-out;
}

.menu-screen.active { display: flex; }

@keyframes screenFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.menu-content {
  text-align: center;
  max-width: 860px;
  width: 100%;
  padding: 1rem 1rem 2rem;
  margin: 0 auto;
  flex-shrink: 0;
}

/* ----------  Title (mobile-first)  ---------- */

.game-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
  color: var(--text);
  text-transform: uppercase;
  position: relative;
  line-height: 1.1;
}

.game-title span {
  display: block;
  font-size: 1.8rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  background: linear-gradient(135deg, var(--primary) 0%, #ff3e00 40%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 20px var(--primary-glow));
  margin-top: 0.1rem;
}

.screen-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: 0.8rem;
  color: var(--text);
  text-transform: uppercase;
  position: relative;
  padding-bottom: 0.5rem;
}

.screen-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.sub-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  margin: 0.5rem 0 0.3rem;
  text-transform: uppercase;
}

/* ----------  Buttons  ---------- */

.menu-btn {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 0.65rem 1.2rem;
  margin: 0.2rem;
  border: 1px solid var(--glass-border);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s ease;
  text-transform: uppercase;
  min-width: 0;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

.menu-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.04), transparent);
  opacity: 0;
  transition: opacity 0.2s;
}

.menu-btn:hover {
  border-color: rgba(0, 212, 255, 0.4);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow:
    0 8px 30px rgba(0,0,0,0.3),
    0 0 20px var(--secondary-glow);
}

.menu-btn:hover::before { opacity: 1; }

.menu-btn:active { transform: translateY(0); }

.menu-btn.primary {
  border: none;
  background: linear-gradient(135deg, var(--primary), #ff3e00);
  color: white;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.menu-btn.primary:hover {
  background: linear-gradient(135deg, #ff8855, var(--primary));
  box-shadow:
    0 8px 35px var(--primary-glow),
    0 0 0 1px rgba(255,255,255,0.1) inset;
  transform: translateY(-2px);
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.nav-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-bottom: 0.5rem;
}

.menu-footer {
  text-align: center;
  color: var(--text-muted);
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  padding: 0.5rem 0;
  margin-top: 0.5rem;
}

/* ==========  TRACK GRID  ========== */

.track-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.4rem;
  margin-bottom: 0.6rem;
}

.track-card {
  position: relative;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 0;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(.4,0,.2,1);
  aspect-ratio: 16 / 9;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  background: var(--bg-card);
}

.track-card .track-preview {
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  opacity: 0.6;
  transition: opacity 0.25s;
}

.track-card .track-info {
  position: relative;
  z-index: 2;
  padding: 0.3rem 0.5rem;
  background: linear-gradient(to top, rgba(6,6,15,0.95) 0%, transparent 100%);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.track-card:hover {
  border-color: rgba(0, 212, 255, 0.5);
}

.track-card:hover .track-preview { opacity: 0.85; }

.track-card.selected {
  border-color: var(--primary);
  box-shadow:
    0 0 0 1px var(--primary),
    0 8px 30px var(--primary-glow),
    0 0 40px var(--primary-glow);
}

.track-card.selected::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius);
  border: 2px solid var(--primary);
  pointer-events: none;
  animation: selectedPulse 2s ease-in-out infinite;
}

@keyframes selectedPulse {
  0%, 100% { box-shadow: 0 0 15px var(--primary-glow); }
  50%      { box-shadow: 0 0 25px var(--primary-glow); }
}

.track-card .track-name {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 0.6rem;
  letter-spacing: 0.03em;
  color: white;
}

.track-card .track-theme {
  font-size: 0.5rem;
  color: var(--text-dim);
  margin-top: 1px;
  font-weight: 500;
}

.track-card .track-difficulty {
  position: absolute;
  top: 0.4rem;
  right: 0.5rem;
  z-index: 3;
  display: flex;
  gap: 2px;
}

.track-card .diff-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
}

.track-card .diff-dot.active {
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
}

/* ==========  CHARACTER GRID  ========== */

.char-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.35rem;
  margin-bottom: 0.6rem;
}

.char-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.3rem 0.4rem;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.char-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--char-color, var(--text-muted));
  border-radius: var(--radius) var(--radius) 0 0;
  opacity: 0.5;
  transition: opacity 0.2s;
}

.char-card:hover {
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}

.char-card:hover::before { opacity: 1; }

.char-card.selected {
  border-color: var(--primary);
  box-shadow:
    0 0 0 1px var(--primary),
    0 8px 25px var(--primary-glow);
}

.char-card.selected::before {
  opacity: 1;
  background: var(--primary);
  height: 3px;
}

.char-icon {
  font-size: 1.4rem;
  margin-bottom: 0.15rem;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.char-name {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 0.55rem;
  letter-spacing: 0.03em;
}

.char-class {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 2px;
}

/* ----------  Stats  ---------- */

.char-stats {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  padding: 1rem 0;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
}

.stat-item {
  text-align: center;
}

.stat-label {
  color: var(--text-dim);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 5px;
}

.stat-bar {
  width: 70px;
  height: 5px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
}

.stat-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.35s cubic-bezier(.4,0,.2,1);
  box-shadow: 0 0 8px currentColor;
}

/* ==========  SETTINGS  ========== */

.settings-form {
  text-align: left;
  max-width: 480px;
  margin: 0 auto 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 0.3rem 0.8rem;
}

.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  flex-wrap: wrap;
  gap: 0.3rem;
}

.setting-row:last-child { border-bottom: none; }

.setting-row label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.setting-options {
  display: flex;
  gap: 2px;
  background: rgba(0,0,0,0.25);
  border-radius: var(--radius-sm);
  padding: 2px;
  flex-wrap: wrap;
}

.option-btn {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.25rem 0.55rem;
  border: none;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
  border-radius: 5px;
}

.option-btn:hover {
  color: var(--text);
  background: rgba(255,255,255,0.05);
}

.option-btn.selected {
  background: linear-gradient(135deg, var(--primary), #ff3e00);
  color: white;
  box-shadow: 0 2px 12px var(--primary-glow);
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 150px;
  height: 5px;
  border-radius: 3px;
  background: rgba(255,255,255,0.08);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #ff3e00);
  cursor: pointer;
  box-shadow: 0 0 10px var(--primary-glow);
}

/* ==========  HUD  ========== */

.hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 50;
}

.hud.hidden { display: none; }

.hud-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 1rem 1.5rem;
}

@media (hover: none), (pointer: coarse) {
  .hud-top { padding: 0.5rem 0.8rem; }
  .hud-position { font-size: 2.2rem; }
  .hud-lap { font-size: 0.75rem; padding: 0.25rem 0.6rem; }
  .hud-timer { font-size: 0.8rem; padding: 0.25rem 0.6rem; }
}

.hud-position {
  font-family: 'Orbitron', sans-serif;
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(180deg, var(--accent), #ff8c00);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 2px 8px rgba(255,215,0,0.4));
}

.hud-position sup {
  font-size: 1rem;
  vertical-align: super;
  -webkit-text-fill-color: var(--accent);
}

.hud-lap {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: var(--glass);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-sm);
  text-shadow: 0 1px 4px rgba(0,0,0,0.6);
}

.hud-timer {
  font-family: 'Share Tech Mono', monospace;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  background: var(--glass);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-sm);
  font-variant-numeric: tabular-nums;
}

.hud-item {
  position: absolute;
  top: 4rem;
  left: 50%;
  transform: translateX(-50%);
}

.item-slot {
  width: 52px;
  height: 52px;
  border: 1.5px solid rgba(255,255,255,0.15);
  background: var(--glass);
  backdrop-filter: blur(8px);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  transition: all 0.2s;
}

.item-slot.has-item {
  border-color: var(--accent);
  box-shadow: 0 0 18px var(--accent-glow), 0 0 0 1px var(--accent) inset;
  animation: itemGlow 1.5s ease-in-out infinite;
}

@keyframes itemGlow {
  0%, 100% { box-shadow: 0 0 14px var(--accent-glow); }
  50%      { box-shadow: 0 0 22px var(--accent-glow); }
}

.hud-minimap {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  background: var(--glass);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

/* On touch devices move minimap to top-left, below the position badge */
@media (hover: none), (pointer: coarse) {
  .hud-minimap {
    bottom: auto;
    right: auto;
    top: 3.8rem;
    left: 0.5rem;
    transform: scale(0.65);
    transform-origin: top left;
    opacity: 0.75;
  }
}

.hud-speed {
  position: absolute;
  bottom: 1rem;
  left: 1.5rem;
  font-family: 'Orbitron', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: white;
  text-shadow: 0 2px 10px rgba(0,0,0,0.6);
}

/* On touch devices, move speed under the top-right HUD area */
@media (hover: none), (pointer: coarse) {
  .hud-speed {
    bottom: auto;
    left: auto;
    top: 3.8rem;
    right: 0.8rem;
    font-size: 1rem;
    opacity: 0.85;
  }
  .hud-speed span {
    font-size: 1.4rem;
  }
}

.hud-speed span {
  font-size: 2rem;
}

.hud-boost-meter {
  position: absolute;
  bottom: 3.5rem;
  left: 1.5rem;
  width: 130px;
  height: 6px;
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 4px;
  overflow: hidden;
  display: none;
  backdrop-filter: blur(4px);
}

.hud-boost-meter.active { display: block; }

.boost-fill {
  height: 100%;
  width: 0%;
  border-radius: 3px;
  transition: width 0.05s linear, background 0.15s;
}

.boost-fill.tier1 { background: linear-gradient(90deg, #00aaff, var(--secondary)); box-shadow: 0 0 10px var(--secondary-glow); }
.boost-fill.tier2 { background: linear-gradient(90deg, #ff5500, var(--primary)); box-shadow: 0 0 10px var(--primary-glow); }
.boost-fill.tier3 { background: linear-gradient(90deg, #ff8c00, var(--accent)); box-shadow: 0 0 12px var(--accent-glow); }

.boost-tier {
  position: absolute;
  top: -20px;
  left: 0;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

/* ==========  OVERLAYS  ========== */

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 80;
  pointer-events: none;
}

.overlay.hidden { display: none; }

.countdown-text {
  font-family: 'Orbitron', sans-serif;
  font-size: 9rem;
  font-weight: 900;
  background: linear-gradient(180deg, #ffffff, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 4px 30px rgba(255,215,0,0.5));
  animation: countdownPop 0.6s cubic-bezier(.2,.8,.3,1.2);
}

@keyframes countdownPop {
  0%  { transform: scale(2.5); opacity: 0; }
  60% { transform: scale(0.95); opacity: 1; }
  100%{ transform: scale(1); opacity: 1; }
}

.banner-text {
  font-family: 'Orbitron', sans-serif;
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-shadow: 0 0 40px rgba(255,107,53,0.4), 0 3px 0 rgba(0,0,0,0.6);
  animation: bannerSlide 1.6s cubic-bezier(.4,0,.2,1) forwards;
}

@keyframes bannerSlide {
  0%  { transform: translateY(40px) scale(0.9); opacity: 0; }
  15% { transform: translateY(0) scale(1); opacity: 1; }
  75% { transform: translateY(0) scale(1); opacity: 1; }
  100%{ transform: translateY(-40px) scale(0.95); opacity: 0; }
}

/* ==========  RESULTS  ========== */

.results-table {
  margin: 0.6rem auto;
  max-width: 440px;
  text-align: left;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  font-size: 0.72rem;
  font-weight: 500;
}

.result-row:last-child { border-bottom: none; }

.result-row:hover { background: rgba(255,255,255,0.02); }

.result-row.player {
  background: rgba(255, 215, 0, 0.06);
  color: var(--accent);
  font-weight: 700;
}

.result-row .pos {
  width: 24px;
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 0.68rem;
  color: var(--text-dim);
}

.result-row.player .pos { color: var(--accent); }

.result-row .name {
  flex: 1;
}

.result-row .time {
  font-family: 'Share Tech Mono', monospace;
  font-variant-numeric: tabular-nums;
  color: var(--text-dim);
}

.result-row.player .time { color: var(--accent); }

.results-time {
  margin-top: 0.5rem;
  font-size: 0.68rem;
  color: var(--text-dim);
  font-family: 'Share Tech Mono', monospace;
  line-height: 1.5;
}

/* ==========  FPS  ========== */

#fps-counter {
  position: absolute;
  top: 6px; right: 6px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.7rem;
  color: var(--success);
  background: var(--glass);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--glass-border);
  z-index: 200;
}

/* ==========  TOUCH CONTROLS  ========== */

/* ==========================================================
   TOUCH CONTROLS – Ergonomic, viewport-responsive, kid-friendly
   
   Key insight: Android browsers (especially Huawei) do NOT
   report safe-area-inset-bottom for the nav bar.  We use a
   generous --tc-pad-b that accounts for browser chrome.
   
   Sizing uses vmin so both portrait & landscape scale well.
   ========================================================== */

.touch-controls {
  position: absolute;
  inset: 0;
  z-index: 70;
  pointer-events: none;

  /* Base padding that clears browser chrome + safe-area.
     Android: env() returns 0 → we rely on the 3.5vh fallback.
     iOS:     env() adds notch/home-bar space on top.           */
  --tc-pad-b: max(3.5vh, env(safe-area-inset-bottom, 0px));
  --tc-pad-l: max(0.8rem, env(safe-area-inset-left, 0px));
  --tc-pad-r: max(0.8rem, env(safe-area-inset-right, 0px));
  --tc-pad-t: max(0.4rem, env(safe-area-inset-top, 0px));

  /* Button size tokens — scale with the smaller viewport dimension
     so a landscape phone and a portrait tablet both feel right.   */
  --steer-size:  clamp(68px, 14vmin, 130px);
  --gas-w:       clamp(92px, 18vmin, 164px);
  --gas-h:       clamp(64px, 11vmin, 110px);
  --brake-w:     clamp(92px, 18vmin, 164px);
  --brake-h:     clamp(52px, 9vmin,  90px);
  --action-w:    clamp(66px, 12vmin, 115px);
  --action-h:    clamp(48px, 8vmin,  80px);
  --gap:         clamp(6px, 1vmin, 14px);
}
.touch-controls.hidden { display: none; }

.touch-controls > *,
.touch-controls .tc-zone > * { pointer-events: auto; }

/* ── Shared button ─────────────────────────────────────── */
.tc-btn {
  position: absolute;
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  color: #fff;
  border: 2.5px solid rgba(255,255,255,0.18);
  background: rgba(16,16,42,0.72);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  outline: none;
  transition: transform 0.05s, box-shadow 0.05s, border-color 0.05s, background 0.05s;
  will-change: transform;
}
.tc-btn:active, .tc-btn.is-pressed { transform: scale(0.91); }
.tc-label { letter-spacing: 0.14em; pointer-events: none;
            font-size: clamp(0.6rem, 1.6vmin, 1.1rem); }
.tc-svg   { pointer-events: none; width: 55%; height: 55%; }

/* ── Zones ─────────────────────────────────────────────── */
.tc-zone {
  position: absolute;
  display: flex;
  pointer-events: none;
}
.tc-left {
  left: var(--tc-pad-l);
  bottom: var(--tc-pad-b);
  gap: var(--gap);
  align-items: center;
}
.tc-right {
  right: var(--tc-pad-r);
  bottom: var(--tc-pad-b);
  flex-direction: column;
  gap: var(--gap);
  align-items: center;
}

/* ── STEER (left thumb, circular) ──────────────────────── */
.tc-steer {
  position: relative;
  width:  var(--steer-size);
  height: var(--steer-size);
  border-radius: 50%;
  font-size: clamp(1.2rem, 3vmin, 2rem);
  background: linear-gradient(145deg, rgba(0,150,255,0.35), rgba(12,12,36,0.72));
  border-color: rgba(0,170,255,0.32);
  box-shadow: 0 4px 18px rgba(0,0,0,0.4), 0 0 10px rgba(0,170,255,0.1);
}
.tc-steer.is-pressed {
  background: linear-gradient(145deg, rgba(0,180,255,0.6), rgba(12,12,36,0.85));
  border-color: rgba(0,220,255,0.7);
  box-shadow: 0 0 30px rgba(0,220,255,0.35);
}

/* ── GAS ───────────────────────────────────────────────── */
.tc-gas {
  position: relative;
  width:  var(--gas-w);
  height: var(--gas-h);
  border-radius: clamp(16px, 3vmin, 28px);
  background: linear-gradient(145deg, rgba(40,200,80,0.45), rgba(12,12,36,0.72));
  border-color: rgba(60,220,100,0.38);
  box-shadow: 0 4px 18px rgba(0,0,0,0.35), 0 0 12px rgba(60,220,100,0.12);
}
.tc-gas.is-pressed {
  background: linear-gradient(145deg, rgba(60,235,100,0.65), rgba(12,12,36,0.85));
  border-color: rgba(80,255,120,0.7);
  box-shadow: 0 0 32px rgba(80,255,120,0.35);
}

/* ── BRAKE ─────────────────────────────────────────────── */
.tc-brake {
  position: relative;
  width:  var(--brake-w);
  height: var(--brake-h);
  border-radius: clamp(16px, 3vmin, 28px);
  background: linear-gradient(145deg, rgba(220,55,55,0.42), rgba(12,12,36,0.72));
  border-color: rgba(240,80,80,0.32);
  box-shadow: 0 4px 18px rgba(0,0,0,0.35), 0 0 12px rgba(240,80,80,0.1);
}
.tc-brake.is-pressed {
  background: linear-gradient(145deg, rgba(245,80,80,0.6), rgba(12,12,36,0.85));
  border-color: rgba(255,110,110,0.7);
  box-shadow: 0 0 30px rgba(255,110,110,0.35);
}

/* ── DRIFT (above steering, left side) ─────────────────── */
.tc-drift {
  left: var(--tc-pad-l);
  bottom: calc(var(--steer-size) + var(--gap) + var(--tc-pad-b) + 0.4rem);
  width:  var(--action-w);
  height: var(--action-h);
  border-radius: clamp(14px, 2.5vmin, 22px);
  background: linear-gradient(145deg, rgba(170,70,255,0.4), rgba(12,12,36,0.72));
  border-color: rgba(180,100,255,0.3);
  box-shadow: 0 4px 16px rgba(0,0,0,0.35), 0 0 10px rgba(180,100,255,0.1);
}
.tc-drift.is-pressed {
  background: linear-gradient(145deg, rgba(200,100,255,0.62), rgba(12,12,36,0.85));
  border-color: rgba(220,140,255,0.7);
  box-shadow: 0 0 28px rgba(220,140,255,0.35);
}

/* ── ITEM (above gas/brake, right side) ────────────────── */
.tc-item {
  right: var(--tc-pad-r);
  bottom: calc(var(--gas-h) + var(--brake-h) + var(--gap) + var(--tc-pad-b) + 0.8rem);
  width:  var(--action-w);
  height: var(--action-h);
  border-radius: clamp(14px, 2.5vmin, 22px);
  background: linear-gradient(145deg, rgba(255,195,0,0.42), rgba(12,12,36,0.72));
  border-color: rgba(255,210,50,0.3);
  box-shadow: 0 4px 16px rgba(0,0,0,0.35), 0 0 10px rgba(255,210,50,0.1);
}
.tc-item.is-pressed {
  background: linear-gradient(145deg, rgba(255,220,30,0.62), rgba(12,12,36,0.85));
  border-color: rgba(255,235,80,0.7);
  box-shadow: 0 0 28px rgba(255,235,80,0.35);
}

/* ── PAUSE ─────────────────────────────────────────────── */
.tc-pause {
  top: var(--tc-pad-t);
  right: var(--tc-pad-r);
  width: clamp(38px, 6vmin, 56px);
  height: clamp(34px, 5vmin, 50px);
  border-radius: 10px;
  font-size: clamp(0.55rem, 1.2vmin, 0.8rem);
  background: rgba(10,10,25,0.6);
  letter-spacing: 0.06em;
  opacity: 0.75;
}
.tc-pause.is-pressed { opacity: 1; border-color: rgba(255,255,255,0.5); }

/* ── DESKTOP: hide entirely ────────────────────────────── */
@media (hover: hover) and (pointer: fine) {
  .touch-controls { display: none !important; }
}

/* ── LANDSCAPE phones (very short viewport) ────────────── */
@media (orientation: landscape) and (max-height: 440px) {
  .touch-controls {
    --steer-size: clamp(56px, 18vh, 86px);
    --gas-w:      clamp(78px, 26vh, 110px);
    --gas-h:      clamp(48px, 14vh, 72px);
    --brake-w:    clamp(78px, 26vh, 110px);
    --brake-h:    clamp(40px, 12vh, 62px);
    --action-w:   clamp(52px, 16vh, 78px);
    --action-h:   clamp(38px, 10vh, 58px);
    --tc-pad-b:   max(1.5vh, env(safe-area-inset-bottom, 0px));
  }
}

/* ── Name labels above karts (multiplayer) ─────────────── */
.kart-label {
  position: absolute;
  pointer-events: none;
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(0.55rem, 1.2vw, 0.8rem);
  font-weight: 700;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0,0,0,0.9), 0 0 8px rgba(0,0,0,0.6);
  white-space: nowrap;
  transform: translate(-50%, -100%);
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(4px);
  z-index: 65;
}
.kart-label.kart-label-self {
  color: #ffd700;
  border: 1px solid rgba(255,215,0,0.4);
}

#fps-counter.hidden { display: none; }

/* ==========  AUTH SCREENS  ========== */

.auth-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  max-width: 300px;
  width: 100%;
  margin: 0 auto 1rem;
}

.auth-input {
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--glass-border);
  background: var(--bg-card);
  color: var(--text);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.2s;
}

.auth-input:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 12px var(--secondary-glow);
}

.auth-input::placeholder {
  color: var(--text-muted);
}

.auth-error {
  background: rgba(255, 23, 68, 0.12);
  border: 1px solid rgba(255, 23, 68, 0.3);
  color: var(--danger);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  width: 100%;
  text-align: center;
}

.auth-switch {
  color: var(--text-dim);
  font-size: 0.75rem;
  margin-top: 0.3rem;
}

.auth-switch a {
  color: var(--secondary);
  text-decoration: none;
  font-weight: 600;
}

.auth-switch a:hover {
  text-decoration: underline;
}

.server-status {
  color: var(--text-muted);
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.65rem;
  margin-top: 0.5rem;
}

.server-status.online { color: var(--success); }
.server-status.offline { color: var(--danger); }

/* ==========  USER INFO  ========== */

.user-info {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--secondary);
  letter-spacing: 0.05em;
  margin-bottom: 0.6rem;
}

.small-btn {
  min-width: 0 !important;
  font-size: 0.6rem !important;
  padding: 0.4rem 0.8rem !important;
  opacity: 0.7;
}

.small-btn:hover { opacity: 1; }

/* ==========  LOBBY / ROOM  ========== */

.room-code-share {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-bottom: 0.2rem;
  flex-wrap: wrap;
}

.room-code-box {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text);
  padding: 0.5rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  display: inline-block;
}

.room-code {
  color: var(--accent);
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  margin-left: 0.3rem;
  font-weight: 900;
}

.btn-copy-code {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.6rem;
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.btn-copy-code svg { width: 16px; height: 16px; }
.btn-copy-code:active { opacity: 0.7; }
.btn-copy-code.copied { border-color: #4caf50; color: #4caf50; }

.room-share-hint {
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.6rem;
  color: var(--text-dim);
  margin-bottom: 0.3rem;
  opacity: 0.7;
}

.room-code-input {
  font-family: 'Orbitron', sans-serif !important;
  font-weight: 900 !important;
  font-size: 1.4rem !important;
  letter-spacing: 0.3em !important;
}

.room-track-info {
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.65rem;
  color: var(--text-dim);
  margin-bottom: 0.3rem;
}

.room-player-list {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  max-width: 420px;
  margin: 0 auto;
}

.room-player {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.6rem;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
}

.room-player.is-you {
  border-color: var(--secondary);
  box-shadow: 0 0 12px var(--secondary-glow);
}

.rp-icon { font-size: 1.4rem; }
.rp-name { flex: 1; font-weight: 600; }
.rp-status {
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.rp-status.ready {
  color: var(--success);
  font-weight: 700;
}

.char-grid.compact { grid-template-columns: repeat(4, 1fr); gap: 0.3rem; margin-bottom: 0.5rem; }
.char-grid.compact .char-card { padding: 0.35rem 0.2rem 0.3rem; }
.char-grid.compact .char-icon { font-size: 1.2rem; margin-bottom: 0.1rem; }
.char-grid.compact .char-name { font-size: 0.5rem; }

/* Browse rooms list */
.room-browse-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 520px;
  margin: 0 auto 1.5rem;
  max-height: 340px;
  overflow-y: auto;
}

.browse-room-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.7rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
}

.brc-info { display: flex; gap: 1rem; align-items: center; }
.brc-code {
  font-family: 'Orbitron', sans-serif;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.15em;
}
.brc-track { font-weight: 600; }
.brc-host { color: var(--text-dim); font-size: 0.8rem; }
.brc-meta { display: flex; gap: 0.8rem; align-items: center; }

.no-rooms {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
  padding: 2rem;
}

.menu-btn.small {
  min-width: auto;
  padding: 0.4rem 1rem;
  font-size: 0.7rem;
}

.join-form {
  max-width: 240px;
  margin: 0 auto 0.5rem;
}

/* ==========  RESPONSIVE: scale UP for larger screens  ========== */

/* Tablets (768px+) */
@media (min-width: 768px) {
  .menu-content { padding: 1.5rem; }
  .game-title { font-size: 2.2rem; margin-bottom: 1.5rem; }
  .game-title span { font-size: 3rem; }
  .screen-title { font-size: 1.3rem; margin-bottom: 1.2rem; }
  .menu-btn { font-size: 0.8rem; padding: 0.8rem 2rem; min-width: 180px; }
  .nav-buttons { gap: 0.8rem; margin-top: 1.5rem; }
  .track-grid { grid-template-columns: repeat(3, 1fr); gap: 0.6rem; }
  .char-grid { gap: 0.5rem; }
  .char-card { padding: 0.8rem 0.4rem 0.6rem; }
  .char-icon { font-size: 1.8rem; margin-bottom: 0.3rem; }
  .char-name { font-size: 0.7rem; }
  .char-grid.compact .char-card { padding: 0.5rem 0.3rem 0.4rem; }
  .char-grid.compact .char-icon { font-size: 1.4rem; }
  .char-grid.compact .char-name { font-size: 0.6rem; }
  .room-code-box { font-size: 0.8rem; padding: 0.6rem 1rem; }
  .room-code { font-size: 1.3rem; }
  .auth-input { font-size: 1rem; padding: 0.7rem 1rem; }
  .room-player { padding: 0.5rem 0.8rem; font-size: 0.85rem; }
  .setting-row label { font-size: 0.85rem; }
  .option-btn { font-size: 0.75rem; padding: 0.3rem 0.7rem; }
  .settings-form { padding: 0.4rem 1.2rem; }
  .menu-footer { font-size: 0.7rem; }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  .menu-content { padding: 2rem; }
  .game-title { font-size: 3rem; margin-bottom: 2.5rem; }
  .game-title span { font-size: 4rem; }
  .screen-title { font-size: 1.5rem; margin-bottom: 1.5rem; padding-bottom: 0.75rem; }
  .menu-btn { font-size: 0.85rem; padding: 0.85rem 2.4rem; min-width: 200px; }
  .nav-buttons { gap: 1rem; margin-top: 2rem; }
  .track-grid { grid-template-columns: repeat(4, 1fr); gap: 0.75rem; }
  .char-grid { gap: 0.75rem; }
  .char-card { padding: 1.2rem 0.5rem 0.8rem; }
  .char-icon { font-size: 2.2rem; margin-bottom: 0.4rem; }
  .char-name { font-size: 0.78rem; }
  .char-grid.compact .char-card { padding: 0.6rem 0.3rem 0.5rem; }
  .char-grid.compact .char-icon { font-size: 1.6rem; margin-bottom: 0.2rem; }
  .char-grid.compact .char-name { font-size: 0.65rem; }
  .room-code-box { font-size: 0.9rem; padding: 0.8rem 1.5rem; }
  .room-code { font-size: 1.5rem; letter-spacing: 0.3em; }
  .room-player { padding: 0.6rem 1rem; font-size: 0.9rem; gap: 0.8rem; }
  .auth-form { max-width: 340px; }
  .user-info { font-size: 0.75rem; margin-bottom: 1.5rem; }
  .menu-footer { font-size: 0.8rem; }
}