/* Cat's Eye — neon-on-dark UI. All HUD sizes scale with --u (pixels per arena unit). */

:root {
  --pink: #ff2d95;
  --cyan: #19f5ff;
  --yellow: #fff23a;
  --bg: #05060c;
  --panel: rgba(8, 9, 20, 0.82);
  --text: #e8e6f4;
  --muted: #8d8aa8;
  --font: 'Pretendard', 'Noto Sans KR', 'Apple SD Gothic Neo', 'Malgun Gothic', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(60, 40, 120, 0.25), transparent 60%),
    radial-gradient(ellipse at 50% 100%, rgba(255, 45, 149, 0.08), transparent 60%),
    var(--bg);
  user-select: none;
  -webkit-user-select: none;
}

#stage {
  --u: 1;
  position: relative;
  width: 480px;
  height: 640px;
  overflow: hidden;
  touch-action: none;
  box-shadow: 0 0 0 1px rgba(80, 90, 160, 0.35), 0 0 40px rgba(25, 245, 255, 0.08), 0 0 120px rgba(255, 45, 149, 0.06);
  background: #07070f;
}

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

.layer { position: absolute; inset: 0; }
.hidden { display: none !important; }

/* ------------------------------------------------------------------ HUD */

#hud {
  pointer-events: none;
  font-size: calc(var(--u) * 13px);
  text-shadow: 0 0 calc(var(--u) * 6px) rgba(0, 0, 0, 0.9);
}

.hud-top {
  position: absolute;
  top: calc(var(--u) * 10px);
  left: calc(var(--u) * 12px);
  right: calc(var(--u) * 12px);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.score {
  font-size: calc(var(--u) * 26px);
  font-weight: 800;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: #fff;
  text-shadow: 0 0 calc(var(--u) * 10px) rgba(25, 245, 255, 0.6);
  line-height: 1;
}

.sub { margin-top: calc(var(--u) * 4px); display: flex; gap: calc(var(--u) * 10px); font-weight: 700; }
.mult { color: var(--yellow); }
.graze { color: var(--cyan); letter-spacing: 0.08em; }

.hud-right { text-align: right; }
.lives { font-size: calc(var(--u) * 16px); letter-spacing: 0.1em; line-height: 1; }
.time { margin-top: calc(var(--u) * 4px); font-weight: 700; font-variant-numeric: tabular-nums; color: #fff; }
.modeinfo { margin-top: calc(var(--u) * 2px); color: var(--pink); font-weight: 700; font-size: calc(var(--u) * 12px); }

.pbtn {
  pointer-events: auto;
  position: absolute;
  top: calc(var(--u) * 8px);
  left: 50%;
  transform: translateX(-50%);
  width: calc(var(--u) * 30px);
  height: calc(var(--u) * 22px);
  border-radius: calc(var(--u) * 6px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(10, 12, 30, 0.45);
  color: rgba(255, 255, 255, 0.7);
  font-family: inherit;
  font-weight: 800;
  font-size: calc(var(--u) * 11px);
  line-height: 1;
  letter-spacing: 0.1em;
  cursor: pointer;
  opacity: 0.7;
}
.pbtn:hover, .pbtn:active { opacity: 1; border-color: var(--cyan); color: #fff; }

#hud.overclock .score { color: var(--cyan); animation: oc-pulse 0.4s ease-in-out infinite alternate; }
@keyframes oc-pulse { from { text-shadow: 0 0 calc(var(--u) * 8px) var(--cyan); } to { text-shadow: 0 0 calc(var(--u) * 22px) var(--pink); } }

.hud-bottom {
  position: absolute;
  left: calc(var(--u) * 12px);
  right: calc(var(--u) * 12px);
  bottom: calc(var(--u) * 10px);
  display: flex;
  align-items: center;
  gap: calc(var(--u) * 10px);
}

.gauge {
  flex: 1;
  height: calc(var(--u) * 6px);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
#gaugeFill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--cyan), var(--pink));
  box-shadow: 0 0 calc(var(--u) * 8px) rgba(25, 245, 255, 0.7);
  transition: width 0.08s linear;
}

.dash {
  position: relative;
  width: calc(var(--u) * 34px);
  height: calc(var(--u) * 34px);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: calc(var(--u) * 7.5px);
  font-weight: 800;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.5);
  background: rgba(0, 0, 0, 0.35);
}
#dashFill { position: absolute; left: 0; right: 0; bottom: 0; height: 0%; background: rgba(25, 245, 255, 0.28); }
.dash span { position: relative; }
.dash.ready { border-color: var(--cyan); color: #fff; box-shadow: 0 0 calc(var(--u) * 10px) rgba(25, 245, 255, 0.45); }
.dash.ready #dashFill { background: rgba(25, 245, 255, 0.4); }

.focus {
  font-size: calc(var(--u) * 10px);
  font-weight: 800;
  letter-spacing: 0.12em;
  padding: calc(var(--u) * 3px) calc(var(--u) * 7px);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.25);
}
.focus.on { color: #fff; border-color: var(--yellow); box-shadow: 0 0 calc(var(--u) * 10px) rgba(255, 242, 58, 0.5); }

/* Zero Waste movement budget */
.budget {
  position: absolute;
  top: calc(var(--u) * 62px);
  left: calc(var(--u) * 12px);
  right: calc(var(--u) * 12px);
}
.budget .label { display: flex; justify-content: space-between; font-size: calc(var(--u) * 10px); letter-spacing: 0.1em; color: var(--muted); font-weight: 700; }
.budget .bar { height: calc(var(--u) * 5px); border-radius: 999px; background: rgba(255, 255, 255, 0.08); overflow: hidden; margin-top: calc(var(--u) * 2px); }
#budgetFill { height: 100%; width: 100%; background: var(--yellow); box-shadow: 0 0 calc(var(--u) * 8px) rgba(255, 242, 58, 0.6); transition: width 0.05s linear; }
.budget.low #budgetFill { background: var(--pink); box-shadow: 0 0 calc(var(--u) * 8px) rgba(255, 45, 149, 0.7); }
.exhausted { margin-top: calc(var(--u) * 4px); text-align: center; color: var(--pink); font-weight: 800; font-size: calc(var(--u) * 12px); animation: blink 0.5s steps(2) infinite; }
@keyframes blink { to { opacity: 0.2; } }

/* Center banners */
.banner {
  position: absolute;
  left: 0; right: 0;
  top: 34%;
  text-align: center;
  opacity: 0;
  pointer-events: none;
}
.banner.show { animation: banner-in 0.35s cubic-bezier(0.2, 0.9, 0.3, 1.2) forwards; }
#bannerMain {
  font-size: calc(var(--u) * 34px);
  font-weight: 900;
  letter-spacing: 0.08em;
  color: #fff;
  text-shadow: 0 0 calc(var(--u) * 14px) var(--cyan), 0 0 calc(var(--u) * 2px) #fff;
}
#bannerSub { margin-top: calc(var(--u) * 4px); font-size: calc(var(--u) * 13px); color: var(--text); font-weight: 600; }
.banner.phase #bannerMain { color: var(--cyan); }
.banner.hit #bannerMain { color: var(--pink); text-shadow: 0 0 calc(var(--u) * 16px) var(--pink); }
.banner.overclock #bannerMain { color: var(--yellow); text-shadow: 0 0 calc(var(--u) * 18px) var(--pink), 0 0 calc(var(--u) * 4px) #fff; letter-spacing: 0.16em; }
.banner.slow #bannerMain { color: #b9c3ff; text-shadow: 0 0 calc(var(--u) * 14px) #6c7cff; }
.banner.mult #bannerMain { color: var(--yellow); font-size: calc(var(--u) * 26px); }
.banner.go #bannerMain { font-size: calc(var(--u) * 46px); color: var(--yellow); }
.banner.clear #bannerMain { color: var(--cyan); }
.banner.wave #bannerMain { font-size: calc(var(--u) * 28px); }
@keyframes banner-in {
  from { opacity: 0; transform: translateY(calc(var(--u) * 14px)) scale(0.9); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.subbanner {
  position: absolute;
  left: 0; right: 0;
  top: 52%;
  text-align: center;
  font-size: calc(var(--u) * 15px);
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--yellow);
  opacity: 0;
  text-shadow: 0 0 calc(var(--u) * 10px) rgba(255, 242, 58, 0.7);
}
.subbanner.show { animation: sub-in 0.3s ease-out forwards; }
@keyframes sub-in { from { opacity: 0; transform: translateY(calc(var(--u) * 8px)); } to { opacity: 1; transform: none; } }

/* Damage flash overlay */
.flash {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(255, 45, 95, 0.45) 100%);
  opacity: 0;
}
.flash.on { animation: flash 0.5s ease-out forwards; }
@keyframes flash { from { opacity: 1; } to { opacity: 0; } }

/* Touch buttons */
.touch {
  position: absolute;
  left: 0; right: 0;
  bottom: calc(var(--u) * 28px);
  display: flex;
  justify-content: space-between;
  padding: 0 calc(var(--u) * 14px);
  pointer-events: none;
}
.tbtn {
  pointer-events: auto;
  width: calc(var(--u) * 64px);
  height: calc(var(--u) * 64px);
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.35);
  background: rgba(10, 12, 30, 0.55);
  color: #fff;
  font: 800 calc(var(--u) * 12px) var(--font);
  letter-spacing: 0.1em;
  touch-action: none;
}
#btnFocus.on, .tbtn:active { background: rgba(25, 245, 255, 0.3); border-color: var(--cyan); }
#btnDash { border-color: rgba(255, 45, 149, 0.6); }

/* ------------------------------------------------------------------ Panels */

.panel {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--panel);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  font-size: calc(var(--u) * 12px);
}
.panel-inner {
  width: 92%;
  max-height: 96%;
  overflow-y: auto;
  padding: calc(var(--u) * 14px);
  text-align: center;
  scrollbar-width: thin;
}
.panel-inner.narrow { width: 70%; }

h1.title {
  margin: 0;
  font-size: calc(var(--u) * 52px);
  font-weight: 900;
  letter-spacing: 0.02em;
  line-height: 1;
}
h1.title .t1 { color: #fff; text-shadow: 0 0 calc(var(--u) * 18px) rgba(25, 245, 255, 0.8); }
h1.title .t2 { color: var(--pink); margin-left: 0.25em; text-shadow: 0 0 calc(var(--u) * 18px) rgba(255, 45, 149, 0.8); }
.title-sub { margin-top: calc(var(--u) * 6px); color: var(--cyan); font-weight: 700; letter-spacing: 0.2em; font-size: calc(var(--u) * 11px); }
.tagline { margin: calc(var(--u) * 10px) 0 calc(var(--u) * 14px); color: var(--muted); font-size: calc(var(--u) * 12px); }

.modes { display: grid; grid-template-columns: 1fr 1fr; gap: calc(var(--u) * 8px); text-align: left; }
.mode {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: calc(var(--u) * 10px);
  padding: calc(var(--u) * 10px) calc(var(--u) * 11px);
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  transition: transform 0.12s ease, border-color 0.12s ease, background 0.12s ease;
}
.mode:hover, .mode:focus-visible { border-color: var(--cyan); background: rgba(25, 245, 255, 0.07); transform: translateY(-1px); outline: none; }
.mode[data-mode="rhythm"]:hover { border-color: var(--pink); background: rgba(255, 45, 149, 0.08); }
.mode[data-mode="zero"]:hover { border-color: var(--yellow); background: rgba(255, 242, 58, 0.07); }
.mname { font-weight: 800; font-size: calc(var(--u) * 14px); color: #fff; }
.msub { color: var(--cyan); font-size: calc(var(--u) * 10px); letter-spacing: 0.14em; font-weight: 700; margin-top: 1px; }
.mdesc { color: var(--muted); font-size: calc(var(--u) * 10.5px); margin-top: calc(var(--u) * 5px); line-height: 1.45; }
.labpick { display: block; margin-top: calc(var(--u) * 6px); font-size: calc(var(--u) * 10.5px); color: var(--text); }
.labpick select {
  margin-top: 2px;
  width: 100%;
  background: #0d0f20;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  padding: calc(var(--u) * 4px);
  font: inherit;
}

.options { display: flex; gap: calc(var(--u) * 16px); justify-content: center; align-items: center; margin: calc(var(--u) * 14px) 0 calc(var(--u) * 8px); font-size: calc(var(--u) * 11.5px); }
.options label { display: flex; gap: 6px; align-items: center; cursor: pointer; }
.options input { accent-color: var(--cyan); width: calc(var(--u) * 14px); height: calc(var(--u) * 14px); }

.controls { text-align: left; border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: calc(var(--u) * 8px); }
.ctitle { font-weight: 800; color: var(--yellow); font-size: calc(var(--u) * 11px); letter-spacing: 0.1em; }
.ctext { color: var(--muted); font-size: calc(var(--u) * 10.5px); line-height: 1.55; white-space: pre-line; margin-top: 2px; }
.tip { color: var(--cyan); font-size: calc(var(--u) * 10.5px); line-height: 1.5; margin: calc(var(--u) * 10px) 0 0; opacity: 0.9; }

button {
  font: 700 calc(var(--u) * 13px) var(--font);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  padding: calc(var(--u) * 9px) calc(var(--u) * 20px);
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease;
}
button:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; }
button.primary { background: linear-gradient(90deg, rgba(25, 245, 255, 0.25), rgba(255, 45, 149, 0.25)); border-color: var(--cyan); box-shadow: 0 0 calc(var(--u) * 14px) rgba(25, 245, 255, 0.25); }
button.small { padding: calc(var(--u) * 4px) calc(var(--u) * 12px); font-size: calc(var(--u) * 11px); }
.btnrow { display: flex; gap: calc(var(--u) * 8px); justify-content: center; flex-wrap: wrap; margin-top: calc(var(--u) * 14px); }

h2 { margin: 0 0 calc(var(--u) * 6px); font-size: calc(var(--u) * 30px); font-weight: 900; letter-spacing: 0.06em; color: #fff; text-shadow: 0 0 calc(var(--u) * 16px) rgba(25, 245, 255, 0.7); }
.result-mode { color: var(--pink); font-weight: 800; letter-spacing: 0.14em; font-size: calc(var(--u) * 11px); }
.analysis-title { margin: calc(var(--u) * 12px) 0 calc(var(--u) * 8px); color: var(--yellow); font-weight: 800; letter-spacing: 0.14em; font-size: calc(var(--u) * 11px); }
.analysis { display: flex; gap: calc(var(--u) * 12px); align-items: flex-start; text-align: left; }
.stats { flex: 1; display: grid; grid-template-columns: auto auto; gap: calc(var(--u) * 5px) calc(var(--u) * 10px); font-size: calc(var(--u) * 11px); align-content: start; }
.sl { color: var(--muted); }
.sv { color: #fff; font-weight: 800; text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.sn { display: block; color: var(--muted); font-weight: 500; font-size: 0.8em; }
.heat { width: 42%; flex: none; text-align: center; }
.heat-title { font-size: calc(var(--u) * 9.5px); color: var(--cyan); font-weight: 700; margin-bottom: 4px; letter-spacing: 0.06em; }
#heatmap { width: 100%; height: auto; border-radius: 6px; display: block; }
.heat-note { font-size: calc(var(--u) * 9px); color: var(--muted); margin-top: 4px; }