/* NEON SURGE — HIGH-VELOCITY CYBER REFLEX RUNNER */
:root {
  --neon-cyan: #00f0ff;
  --neon-green: #00ff88;
  --neon-pink: #ff007f;
  --neon-gold: #ffd700;
  --panel-bg: #0b0f14;
  --border-line: rgba(255, 255, 255, 0.08);
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  background: #040608;
  color: #f1f5f9;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  user-select: none;
  -webkit-user-select: none;
}

.sg-page-shell {
  width: min(1080px, calc(100% - 20px));
  margin: 0 auto;
  padding: 10px 0 40px;
}

/* Header */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 12px;
  background: rgba(11, 15, 20, 0.85);
  border: 1px solid var(--border-line);
  border-radius: 14px;
  backdrop-filter: blur(20px);
  margin-bottom: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-copy strong {
  display: block;
  font-size: 15px;
  font-weight: 950;
  letter-spacing: -0.3px;
  background: linear-gradient(135deg, #fff 40%, var(--neon-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-copy span {
  display: block;
  font-size: 9.5px;
  color: #8e9aa5;
}

/* Stage & Canvas Area */
.game-viewport-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: min(65vh, 600px);
  min-height: 380px;
  border-radius: 18px;
  overflow: hidden;
  background: #020305;
  border: 1px solid rgba(0, 240, 255, 0.25);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.7), 0 0 32px rgba(0, 240, 255, 0.12);
}

@media (max-width: 600px) {
  .game-viewport-container {
    aspect-ratio: 4 / 3;
    min-height: 340px;
  }
}

#gameCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* HUD elements */
.hud-overlay {
  position: absolute;
  top: 14px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  pointer-events: none;
  z-index: 10;
}

.hud-stat-box {
  background: rgba(4, 7, 12, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 6px 12px;
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 16px rgba(0,0,0,0.5);
}

.hud-stat-box small {
  font-size: 8px;
  font-weight: 850;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: #94a3b8;
}

.hud-stat-box b {
  font-size: 19px;
  font-weight: 950;
  color: #fff;
  line-height: 1.1;
}

.hud-multiplier {
  color: var(--neon-gold) !important;
  text-shadow: 0 0 12px rgba(255, 215, 0, 0.5);
}

/* Overdrive Energy Meter */
.surge-meter-wrap {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: min(320px, 80%);
  background: rgba(4, 7, 12, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 6px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 10;
  pointer-events: none;
}

.surge-meter-label {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 1px;
  color: var(--neon-cyan);
}

.surge-meter-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.surge-meter-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-green));
  border-radius: 4px;
  transition: width 0.08s linear;
  box-shadow: 0 0 12px var(--neon-cyan);
}

/* Near-Miss Combo Callout */
.near-miss-banner {
  position: absolute;
  top: 35%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  font-size: 26px;
  font-weight: 950;
  letter-spacing: 1.5px;
  color: var(--neon-gold);
  text-shadow: 0 0 20px rgba(255, 215, 0, 0.8), 0 0 40px rgba(255, 215, 0, 0.4);
  pointer-events: none;
  opacity: 0;
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  z-index: 15;
}

.near-miss-banner.pop {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.15);
}

/* Mobile Touch Controls */
.mobile-controls-layer {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 12;
}

@media (max-width: 900px) {
  .mobile-controls-layer {
    display: flex;
  }
}

.touch-steer-zone {
  flex: 1;
  height: 100%;
}

.touch-surge-btn {
  position: absolute;
  bottom: 24px;
  right: 18px;
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: rgba(0, 240, 255, 0.2);
  border: 2px solid var(--neon-cyan);
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.4);
  color: #fff;
  font-size: 10px;
  font-weight: 950;
  letter-spacing: 0.8px;
  display: grid;
  place-items: center;
  pointer-events: auto;
  user-select: none;
  touch-action: manipulation;
}

.touch-surge-btn:active, .touch-surge-btn.active {
  background: var(--neon-cyan);
  color: #040608;
  box-shadow: 0 0 35px var(--neon-cyan);
  transform: scale(0.95);
}

/* Platform score/account area */
.sg-score-area{width:min(100%,980px);margin:14px auto 20px;display:grid;grid-template-columns:1.5fr 1fr;gap:12px;padding:0 12px;box-sizing:border-box}.sg-score-card{background:rgba(15,23,42,.82);border:1px solid rgba(148,163,184,.18);border-radius:14px;padding:14px;color:#e2e8f0}.sg-score-head,.sg-account-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.sg-score-head span,.sg-account-row span{display:block;color:#94a3b8;font-size:11px;margin-top:3px}.sg-score-list{margin-top:10px}.sg-score-row{display:grid;grid-template-columns:42px 1fr auto;gap:8px;padding:7px 0;border-top:1px solid rgba(148,163,184,.1);font-size:12px}.sg-score-row b{font-variant-numeric:tabular-nums}.cf-save-box,.ns-save-box{margin:10px 0;padding:10px;border:1px solid rgba(0,255,136,.25);background:rgba(0,255,136,.07);border-radius:10px;text-align:left}.cf-save-box span,.ns-save-box span{display:block;color:#94a3b8;font-size:10px;line-height:1.4;margin:4px 0 8px}@media(max-width:720px){.sg-score-area{grid-template-columns:1fr}}

.overlay .modal,.cf-overlay .cf-modal{max-height:none!important;overflow:hidden!important;}
@media(max-height:700px){.overlay .modal,.cf-overlay .cf-modal{transform:scale(.88);transform-origin:center;padding-top:12px!important;padding-bottom:12px!important}.overlay .modal p,.cf-overlay .cf-modal p{line-height:1.35!important;margin-top:4px!important;margin-bottom:8px!important}}

/* v3: game-over overlay is a fixed, zero-scroll result panel. */
.game-viewport-container .overlay{overflow:hidden!important;overscroll-behavior:none!important;padding:6px!important;justify-content:center!important;}
#endOverlay>.modal{margin:0 auto!important;width:min(520px,calc(100% - 4px))!important;max-width:520px!important;max-height:calc(100% - 8px)!important;overflow:hidden!important;padding:10px 12px!important;transform:none!important;}
#endOverlay h2{font-size:20px!important;margin:2px 0!important;}
#endOverlay #endFinalScore{font-size:34px!important;margin:2px 0!important;line-height:1!important;}
#endOverlay .result{margin:7px 0!important;gap:4px!important;}
#endOverlay .result>div{padding:5px!important;}
#endOverlay #endNewBest{padding:4px 10px!important;margin:2px auto!important;font-size:9px!important;}
#endOverlay .ns-save-box{margin:5px 0!important;padding:6px 8px!important;}
#endOverlay .ns-save-box span{margin:2px 0 4px!important;line-height:1.2!important;}
.ns-end-actions{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin:6px 0 0}.ns-end-actions .btn{min-height:34px;padding:7px 10px!important;font-size:10px!important}.ns-share-result{border-color:rgba(0,240,255,.45)!important;color:var(--neon-cyan)!important;}
@media(max-width:520px){#endOverlay>.modal{padding:7px 8px!important}#endOverlay h2{font-size:17px!important}#endOverlay #endFinalScore{font-size:28px!important}#endOverlay .result{grid-template-columns:repeat(4,1fr)!important}#endOverlay .result small{font-size:6.5px!important}#endOverlay .result b{font-size:11px!important}#endOverlay [style*="Your Best Score"]{margin:2px 0 5px!important;padding:4px 7px!important}.ns-end-actions .btn{min-height:30px}}