:root {
  --ink: #e9ecff;
  --ink-dim: #8b93b8;
  --frame-bg: #070b22;
  --panel-bg: rgba(13, 18, 44, 0.82);
  --accent: #ffd166;
  --accent-2: #4cc9f0;
}

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

html, body {
  height: 100%;
  overflow: hidden;
  background: #05070f;
  color: var(--ink);
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

#app {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

#frame {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.05);
  background: var(--frame-bg);
}

canvas#game {
  display: block;
  background: var(--frame-bg);
}

/* ---------- HUD ---------- */
.hud {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 44px;
  padding: 8px 12px;
  pointer-events: none;
  z-index: 10;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  font-size: 12px;
  letter-spacing: 0.08em;
  background: linear-gradient(to bottom, rgba(5,7,19,0.75), rgba(5,7,19,0));
}

.hud-left { display: flex; flex-direction: column; gap: 1px; }
.score-line { display: flex; align-items: baseline; gap: 6px; }
.score-label { color: var(--ink-dim); font-size: 9px; }
.score-value { font-size: 17px; font-weight: 800; color: var(--accent); font-variant-numeric: tabular-nums; }
.best-line { color: var(--ink-dim); font-size: 9px; }
.sub-line { display: flex; align-items: center; gap: 8px; color: var(--ink-dim); font-size: 10px; margin-top: 1px; }
.lives { display: inline-flex; gap: 3px; font-size: 10px; }

.hud-right { display: flex; gap: 6px; pointer-events: auto; }
.hud-btn {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--ink);
  width: 30px; height: 30px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}
.hud-btn:active { transform: scale(0.92); }

/* Combo pill */
.combo-pill {
  position: absolute;
  top: 50px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, rgba(255,209,102,0.95), rgba(255,140,66,0.95));
  color: #201300;
  font-weight: 800;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 15px;
  display: flex; align-items: center; gap: 5px;
  box-shadow: 0 6px 24px rgba(255, 160, 60, 0.5);
  z-index: 12;
  transition: transform 0.12s ease;
  transform-origin: center;
}
.combo-pill.pop { transform: translateX(-50%) scale(1.18); }
.combo-count { font-size: 19px; }
.combo-mult { color: rgba(32,19,0,0.65); }

/* Roof banner */
.roof-banner {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(4px);
  padding: 6px 16px;
  border-radius: 999px;
  color: #fff;
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.25em;
  text-shadow: 0 0 12px rgba(120, 200, 255, 0.8);
  animation: pulsebanner 1.6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes pulsebanner { 0%,100% { opacity: 0.85; } 50% { opacity: 1; } }

/* Center message */
.center-msg {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  z-index: 15;
  text-align: center;
  padding: 20px;
}
.center-msg .big {
  font-size: 34px;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: #fff;
  text-shadow: 0 0 30px rgba(120, 200, 255, 0.6);
}
.center-msg .small {
  color: var(--ink-dim);
  font-size: 13px;
  max-width: 380px;
  line-height: 1.5;
}
.center-msg .sub {
  color: var(--accent);
  font-weight: 700;
  font-size: 15px;
}
.hidden { display: none !important; }

/* Side toast */
.side-msg {
  position: absolute;
  left: 50%;
  top: 25%;
  transform: translateX(-50%);
  z-index: 14;
  background: rgba(10, 14, 34, 0.9);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  pointer-events: none;
  animation: floatmsg 2.6s ease forwards;
  white-space: nowrap;
}
@keyframes floatmsg {
  0% { opacity: 0; transform: translate(-50%, 12px); }
  12% { opacity: 1; transform: translate(-50%, 0); }
  80% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -16px); }
}

/* Touch hint (first visit, mobile sized) */
.touch-hint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4, 6, 16, 0.55);
  z-index: 30;
}
.touch-hint-card {
  background: var(--panel-bg);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 16px;
  padding: 24px 26px;
  width: min(300px, 86%);
  display: flex;
  flex-direction: column;
  gap: 11px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.touch-hint-title { font-weight: 900; font-size: 19px; }
.touch-hint-row { font-size: 14px; color: var(--ink); display: flex; flex-direction: column; gap: 2px; }
.kbd {
  display: inline-block;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 800;
  width: fit-content;
  letter-spacing: 0.1em;
}
.touch-hint-row.dim { color: var(--ink-dim); font-size: 12.5px; line-height: 1.5; }
.gotit-btn {
  margin-top: 6px;
  background: linear-gradient(135deg, var(--accent), #ff8c42);
  border: none;
  color: #201300;
  font-weight: 900;
  font-size: 15px;
  padding: 12px;
  border-radius: 12px;
  cursor: pointer;
  letter-spacing: 0.1em;
}
.gotit-btn:active { transform: scale(0.96); }