:root {
  --bg-black: #08010f;
  --bg-panel: #150025;
  --bg-panel-2: #1f0038;
  --neon-cyan: #00f6ff;
  --neon-cyan-dark: #0a5c66;
  --neon-magenta: #ff2ea6;
  --neon-magenta-dark: #7a0e56;
  --neon-yellow: #fff400;
  --neon-yellow-dark: #a89400;
  --neon-green: #39ff88;
  --track-dark: #170a26;
  --track-dark-2: #200e33;
  --player-color: var(--neon-cyan);
  --player-dark: var(--neon-cyan-dark);
  --bot-color: var(--neon-magenta);
  --bot-dark: var(--neon-magenta-dark);
  --panel-bg: var(--bg-panel);
  --accent: var(--neon-yellow);
  --runner-w: 46px;
  --runner-h: 62px;
  --font-pixel: "Press Start 2P", monospace;
  --font-retro: "VT323", monospace;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  font-family: var(--font-retro);
  font-size: 20px;
  background: var(--bg-black);
  color: #fff;
  -webkit-tap-highlight-color: transparent;
}

.game-wrap {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  position: relative;
}

/* ---------- CRT scanline overlay ---------- */
.crt-overlay {
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.25) 0px,
    rgba(0, 0, 0, 0.25) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: multiply;
  opacity: 0.45;
}

/* ---------- Top-right controls (sound / language) ---------- */
.top-right-controls {
  position: fixed;
  top: 10px;
  right: 10px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.icon-toggle-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  line-height: 1;
  color: var(--neon-yellow);
  background: var(--bg-panel-2);
  border: 3px solid #000;
  border-radius: 0;
  box-shadow: 3px 3px 0 #000;
  cursor: pointer;
  touch-action: manipulation;
  transition: transform 0.06s ease-out, box-shadow 0.06s ease-out;
}

.icon-toggle-btn:active,
.icon-toggle-btn.pressed {
  transform: translate(3px, 3px);
  box-shadow: 0 0 0 #000;
}

.icon-toggle-btn.muted {
  color: #666;
}

.lang-toggle-btn {
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: var(--neon-cyan);
}

.false-start-title {
  color: var(--neon-magenta) !important;
  text-shadow: 0 0 8px var(--neon-magenta) !important;
}

/* ---------- Scoreboard ---------- */
.scoreboard {
  background: var(--panel-bg);
  padding: 10px 14px;
  border-bottom: 4px solid var(--accent);
  box-shadow: 0 4px 0 #000, 0 0 14px rgba(255, 244, 0, 0.25);
  flex: 0 0 auto;
}

.scoreboard h1 {
  margin: 0;
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  line-height: 1.6;
  letter-spacing: 0.5px;
  color: var(--neon-cyan);
  text-shadow: 0 0 6px var(--neon-cyan), 2px 2px 0 #000;
}

.scoreboard h1 span {
  display: block;
  color: var(--accent);
  text-shadow: 0 0 6px var(--accent), 2px 2px 0 #000;
  margin-top: 4px;
}

.scoreboard-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  font-family: var(--font-retro);
  font-size: 1.15rem;
}

.timer {
  font-family: var(--font-pixel);
  font-variant-numeric: tabular-nums;
  font-size: 0.8rem;
  color: var(--neon-yellow);
  text-shadow: 0 0 8px var(--neon-yellow);
}

.distances {
  display: flex;
  gap: 16px;
  font-size: 1.1rem;
}

.player-dist { color: var(--neon-cyan); text-shadow: 0 0 6px var(--neon-cyan-dark); }
.bot-dist { color: var(--neon-magenta); text-shadow: 0 0 6px var(--neon-magenta-dark); }

/* ---------- Stadium ---------- */
.stadium {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}

.sky {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 100%, rgba(255, 46, 166, 0.35) 0%, rgba(255, 46, 166, 0) 55%),
    linear-gradient(to bottom, #0a0018 0%, #1a0b30 55%, #1a0b30 100%);
}

.crowd {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 18%;
  min-height: 30px;
  background: #0c0018;
  border-bottom: 3px solid var(--neon-magenta-dark);
  overflow: hidden;
}

.crowd-dot {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 0;
  opacity: 0.9;
  box-shadow: 0 0 4px currentColor;
  animation-name: crowd-sparkle;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
}

@keyframes crowd-sparkle {
  0%, 100% { opacity: 0.45; filter: brightness(0.8) saturate(0.9); transform: scale(1); }
  50% { opacity: 1; filter: brightness(1.9) saturate(1.3); transform: scale(1.3); }
}

.track {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 18%;
  background: var(--track-dark);
  background-image: repeating-linear-gradient(
    to bottom,
    var(--track-dark) 0,
    var(--track-dark) 49%,
    var(--track-dark-2) 49%,
    var(--track-dark-2) 51%,
    var(--track-dark) 51%,
    var(--track-dark) 100%
  );
}

.lane {
  position: relative;
  height: 50%;
  border-bottom: 3px dashed var(--neon-cyan-dark);
}

.lane:last-child {
  border-bottom: none;
}

.lane-label {
  position: absolute;
  left: 6px;
  top: 6px;
  width: 22px;
  height: 22px;
  line-height: 22px;
  text-align: center;
  background: var(--bg-black);
  border: 2px solid var(--neon-yellow);
  color: var(--neon-yellow);
  border-radius: 0;
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  z-index: 2;
}

.finish-line {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 4%;
  width: 10px;
  background: repeating-linear-gradient(
    to bottom,
    var(--neon-yellow) 0,
    var(--neon-yellow) 10px,
    #000 10px,
    #000 20px
  );
  box-shadow: 0 0 12px rgba(255, 244, 0, 0.6);
  z-index: 3;
}

.finish-line span {
  position: absolute;
  top: 4px;
  left: 14px;
  writing-mode: vertical-rl;
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  background: #000;
  border: 2px solid var(--neon-yellow);
  color: var(--neon-yellow);
  padding: 4px 3px;
  white-space: nowrap;
}

/* ---------- Runner ---------- */
.runner {
  position: absolute;
  bottom: 8%;
  left: 0;
  width: var(--runner-w);
  height: var(--runner-h);
  transform: translateX(0);
  will-change: left;
}

.runner .head {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  border-radius: 0;
  background: #ffcf8f;
  border: 2px solid #000;
  z-index: 3;
}

.runner .body {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 26px;
  border-radius: 0;
  border: 2px solid #000;
  z-index: 2;
}

.runner.player .body { background: var(--player-color); box-shadow: 0 0 8px var(--player-color); }
.runner.bot .body { background: var(--bot-color); box-shadow: 0 0 8px var(--bot-color); }
.runner.ghost {
  opacity: 0.5;
  bottom: calc(8% + 22px);
  z-index: 4;
}
.runner.ghost .head { background: #e6e6f5; border-color: #9c9cc9; }
.runner.ghost .body { background: #cfcfff; box-shadow: 0 0 8px #cfcfff; border-color: #9c9cc9; }

.runner .leg {
  position: absolute;
  top: 38px;
  width: 7px;
  height: 24px;
  border-radius: 0;
  border: 2px solid #000;
  transform-origin: top center;
  transition: transform 0.12s ease-out;
  z-index: 1;
}

.runner.player .leg { background: var(--player-dark); }
.runner.bot .leg { background: var(--bot-dark); }
.runner.ghost .leg { background: #8f8fc9; border-color: #9c9cc9; }

.runner .leg-left { left: 9px; }
.runner .leg-right { left: 22px; }

.runner .arm {
  position: absolute;
  top: 15px;
  width: 6px;
  height: 18px;
  border-radius: 0;
  border: 2px solid #000;
  transform-origin: top center;
  transition: transform 0.12s ease-out;
  z-index: 3;
}

.runner.player .arm { background: #ffcf8f; }
.runner.bot .arm { background: #ffcf8f; }
.runner.ghost .arm { background: #e6e6f5; border-color: #9c9cc9; }

.runner .arm-left { left: 2px; }
.runner .arm-right { left: 30px; }

.runner.phase-left .leg-left { transform: rotate(-32deg); }
.runner.phase-left .leg-right { transform: rotate(24deg); }
.runner.phase-left .arm-left { transform: rotate(26deg); }
.runner.phase-left .arm-right { transform: rotate(-30deg); }

.runner.phase-right .leg-left { transform: rotate(24deg); }
.runner.phase-right .leg-right { transform: rotate(-32deg); }
.runner.phase-right .arm-left { transform: rotate(-30deg); }
.runner.phase-right .arm-right { transform: rotate(26deg); }

.runner.finished {
  filter: drop-shadow(0 0 8px var(--neon-yellow));
}

/* ---------- 10-combo fire effect (brief, localized to the player sprite) ---------- */
.runner.player.on-fire::before,
.runner.player.on-fire::after {
  content: "🔥";
  position: absolute;
  bottom: -8px;
  font-size: 15px;
  line-height: 1;
  pointer-events: none;
  z-index: 5;
  animation: fireFlicker 0.35s ease-in-out infinite alternate;
}

.runner.player.on-fire::before {
  left: -6px;
  animation-delay: 0s;
}

.runner.player.on-fire::after {
  right: -6px;
  animation-delay: 0.15s;
}

@keyframes fireFlicker {
  0% { transform: scale(0.85) translateY(0); opacity: 0.8; }
  100% { transform: scale(1.15) translateY(-4px); opacity: 1; }
}

/* ---------- Controls ---------- */
.controls {
  flex: 0 0 auto;
  display: flex;
  gap: 10px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: var(--panel-bg);
  border-top: 4px solid var(--accent);
  box-shadow: 0 -4px 0 #000, 0 0 14px rgba(255, 244, 0, 0.25);
}

.foot-btn {
  flex: 1 1 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 14px 8px;
  min-height: 78px;
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  color: #fff;
  border: 3px solid #000;
  border-radius: 0;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  box-shadow: 4px 4px 0 #000;
  transition: transform 0.06s ease-out, box-shadow 0.06s ease-out, filter 0.06s ease-out;
}

.foot-left {
  background: var(--neon-cyan-dark);
}

.foot-right {
  background: var(--neon-magenta-dark);
}

.foot-btn:active,
.foot-btn.pressed {
  transform: translate(4px, 4px);
  box-shadow: 0 0 0 #000;
  filter: brightness(1.3);
}

.foot-icon {
  font-size: 1.3rem;
  line-height: 1;
}

.key-hint {
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  opacity: 0.9;
  background: #000;
  border: 1px solid currentColor;
  padding: 2px 8px;
}

/* ---------- Overlays ---------- */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 0, 15, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  padding: 20px;
}

.overlay.hidden {
  display: none;
}

.hidden {
  display: none !important;
}

.overlay-card {
  background: var(--bg-panel-2);
  border: 3px solid var(--accent);
  border-radius: 0;
  padding: 26px 22px;
  max-width: 380px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  text-align: center;
  box-shadow: 6px 6px 0 #000, 0 0 24px rgba(255, 244, 0, 0.25);
}

.overlay-card h2 {
  margin: 0 0 14px;
  font-family: var(--font-pixel);
  font-size: 1.1rem;
  color: var(--neon-cyan);
  text-shadow: 0 0 8px var(--neon-cyan);
  line-height: 1.6;
}

.overlay-card p {
  margin: 10px 0;
  font-size: 1.15rem;
  line-height: 1.5;
  color: #e6d8ff;
}

.overlay-card .tip {
  font-size: 1rem;
  color: #9c86c9;
}

.result-time {
  font-family: var(--font-pixel);
  font-size: 0.85rem;
  color: var(--accent);
  text-shadow: 0 0 8px var(--accent);
  margin: 16px 0 !important;
}

.result-btn-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 14px;
}

.result-detail-group {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 2px dashed var(--neon-cyan-dark);
}

/* ---------- Difficulty selector (start screen) ---------- */
.difficulty-row {
  display: flex;
  gap: 8px;
  margin: 16px 0 4px;
}

.difficulty-btn {
  flex: 1 1 33%;
  padding: 8px 4px;
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  color: #9c86c9;
  background: var(--bg-black);
  border: 2px solid var(--neon-cyan-dark);
  border-radius: 0;
  cursor: pointer;
  touch-action: manipulation;
}

.difficulty-btn.active {
  color: var(--bg-black);
  background: var(--neon-cyan);
  border-color: var(--neon-cyan);
  box-shadow: 0 0 8px var(--neon-cyan);
}

/* ---------- Combo (in-race) ---------- */
.combo-display {
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--neon-yellow);
  background: rgba(8, 1, 15, 0.75);
  border: 2px solid var(--neon-yellow);
  padding: 4px 10px;
  pointer-events: none;
  white-space: nowrap;
}

.combo-popup {
  position: absolute;
  top: 38%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 5;
  font-family: var(--font-pixel);
  font-size: 1rem;
  color: var(--neon-magenta);
  text-shadow: 0 0 10px var(--neon-magenta), 2px 2px 0 #000;
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
}

.combo-popup.show {
  animation: comboPopFade 0.9s ease-out;
}

@keyframes comboPopFade {
  0% { opacity: 0; transform: translate(-50%, -40%) scale(0.7); }
  20% { opacity: 1; transform: translate(-50%, -50%) scale(1.15); }
  35% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  75% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -60%) scale(1); }
}

/* ---------- Result screen: medal / personal-best ---------- */
.medal-badge {
  display: inline-block;
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  margin: 4px 0 12px;
  padding: 6px 10px;
  border: 2px solid var(--neon-yellow);
}

.medal-gold { color: var(--neon-yellow); text-shadow: 0 0 8px var(--neon-yellow); border-color: var(--neon-yellow); }
.medal-silver { color: #d9d9f5; text-shadow: 0 0 8px #d9d9f5; border-color: #d9d9f5; }
.medal-bronze { color: #ff9c4a; text-shadow: 0 0 8px #ff9c4a; border-color: #ff9c4a; }

.new-record-banner {
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  color: var(--neon-green);
  text-shadow: 0 0 8px var(--neon-green);
  margin: 0 0 10px;
  animation: newRecordPulse 1s ease-in-out infinite;
}

@keyframes newRecordPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.06); opacity: 0.85; }
}

.best-time-row {
  font-size: 1rem !important;
  color: #d8e0f5;
  margin: 4px 0 !important;
}

.beat-best-row {
  font-size: 0.95rem !important;
  color: #ff9c4a;
  margin: 4px 0 !important;
}

.next-goal-row {
  font-size: 1rem !important;
  color: var(--neon-green);
  margin: 4px 0 !important;
}

.max-combo-row {
  font-size: 1rem !important;
  color: var(--neon-yellow);
  margin: 4px 0 10px !important;
}

.daily-challenge-badge {
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--neon-magenta);
  text-shadow: 0 0 8px var(--neon-magenta);
  border: 2px solid var(--neon-magenta);
  padding: 5px 8px;
  margin: 0 0 10px;
  display: inline-block;
}

/* ---------- Daily challenge box (start screen) ---------- */
.daily-challenge-box {
  border: 2px solid var(--neon-magenta);
  background: rgba(255, 46, 166, 0.08);
  padding: 8px 10px;
  margin-bottom: 14px;
  text-align: center;
}

.daily-challenge-title {
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  color: var(--neon-magenta);
  text-shadow: 0 0 6px var(--neon-magenta);
  margin-bottom: 4px;
}

.daily-challenge-text {
  font-family: var(--font-retro);
  font-size: 1.05rem;
  color: #f2d9ee;
}

/* ---------- Rival box (start screen) ---------- */
.rival-box {
  border: 2px solid var(--neon-cyan);
  background: rgba(0, 246, 255, 0.08);
  padding: 8px 10px;
  margin-bottom: 16px;
  text-align: center;
}

.rival-box-title {
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  color: var(--neon-cyan);
  text-shadow: 0 0 6px var(--neon-cyan);
  margin-bottom: 4px;
}

.rival-box-text {
  font-family: var(--font-retro);
  font-size: 1.05rem;
  color: #d9f6ff;
}

.rival-result-row {
  font-size: 1rem !important;
  color: var(--neon-cyan);
  margin: 4px 0 !important;
}

.ghost-beat-badge {
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: #cfcfff;
  text-shadow: 0 0 8px #cfcfff;
  border: 2px solid #cfcfff;
  padding: 5px 8px;
  margin: 0 0 10px;
  display: inline-block;
}

/* ---------- Big, prominent restart button ---------- */
.primary-btn.big-restart-btn {
  font-size: 0.95rem;
  padding: 18px 28px;
  box-shadow: 5px 5px 0 #000, 0 0 16px rgba(255, 244, 0, 0.4);
}

.primary-btn,
.secondary-btn {
  padding: 12px 28px;
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  border: 3px solid #000;
  border-radius: 0;
  cursor: pointer;
  touch-action: manipulation;
  box-shadow: 4px 4px 0 #000;
  transition: transform 0.06s ease-out, box-shadow 0.06s ease-out;
}

.primary-btn {
  color: #1a0b30;
  background: var(--accent);
}

.secondary-btn {
  color: var(--neon-cyan);
  background: transparent;
  border-color: var(--neon-cyan);
  box-shadow: 4px 4px 0 var(--neon-cyan-dark);
}

.share-btn {
  color: var(--neon-magenta);
  border-color: var(--neon-magenta);
  box-shadow: 4px 4px 0 var(--neon-magenta-dark);
}

.share-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.primary-btn:active,
.secondary-btn:active {
  transform: translate(4px, 4px);
  box-shadow: 0 0 0 #000;
}

.countdown-number {
  font-family: var(--font-pixel);
  font-size: 4.5rem;
  color: var(--accent);
  text-shadow: 0 0 10px var(--accent), 0 0 30px var(--neon-magenta);
}

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
  .scoreboard h1 { font-size: 0.55rem; }
  .timer { font-size: 0.7rem; }
  .distances { font-size: 1rem; gap: 10px; }
  .foot-btn { font-size: 0.6rem; min-height: 70px; }
  .foot-icon { font-size: 1.1rem; }
  .combo-display { font-size: 0.5rem; padding: 3px 8px; }
  .combo-popup { font-size: 0.8rem; }
  .difficulty-btn { font-size: 0.45rem; padding: 7px 2px; }
  .medal-badge { font-size: 0.6rem; }
  .new-record-banner { font-size: 0.55rem; }
  .daily-challenge-title { font-size: 0.45rem; }
  .daily-challenge-text { font-size: 0.9rem; }
  .daily-challenge-badge { font-size: 0.5rem; }
  .rival-box-title { font-size: 0.45rem; }
  .rival-box-text { font-size: 0.9rem; }
  .ghost-beat-badge { font-size: 0.5rem; }
  .primary-btn.big-restart-btn { font-size: 0.75rem; padding: 15px 20px; }
}

@media (min-width: 700px) {
  .game-wrap { max-width: 900px; margin: 0 auto; }
  .foot-btn { font-size: 0.85rem; min-height: 90px; }
}

@media (max-height: 480px) {
  .crowd { height: 12%; }
  .foot-btn { min-height: 56px; padding: 8px; }
  .overlay-card { padding: 16px; }
  .overlay-card h2 { margin-bottom: 8px; }
  .overlay-card p { margin: 6px 0; }
  .difficulty-row { margin: 10px 0 2px; }
  .medal-badge { margin: 2px 0 8px; }
  .new-record-banner { margin-bottom: 6px; }
  .daily-challenge-box { padding: 6px 8px; margin-bottom: 8px; }
  .rival-box { padding: 6px 8px; margin-bottom: 8px; }
  .primary-btn.big-restart-btn { padding: 12px 24px; }
  .countdown-number { font-size: 3rem; }
}