:root {
  color-scheme: dark;
  --ink: #f7fbff;
  --muted: rgba(235, 244, 255, 0.66);
  --glass: rgba(10, 17, 29, 0.68);
  --glass-strong: rgba(10, 17, 29, 0.88);
  --line: rgba(255, 255, 255, 0.12);
  --accent: #7cf7cf;
  --danger: #ff6b7a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  font-family: Inter, Pretendard, "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; background: #0e1725; }
body { color: var(--ink); user-select: none; -webkit-user-select: none; touch-action: none; }
button, input { font: inherit; }
button { -webkit-tap-highlight-color: transparent; }

#game { position: fixed; inset: 0; width: 100%; height: 100%; display: block; outline: none; }

.hud {
  position: fixed;
  z-index: 10;
  top: max(18px, env(safe-area-inset-top));
  left: max(18px, env(safe-area-inset-left));
  right: max(18px, env(safe-area-inset-right));
  display: grid;
  grid-template-columns: minmax(170px, 0.8fr) minmax(300px, 1.35fr) minmax(250px, 1fr);
  gap: 12px;
  pointer-events: none;
}

.hud-card {
  min-height: 70px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(255,255,255,0.08), rgba(255,255,255,0.025)), var(--glass);
  box-shadow: 0 10px 40px rgba(0,0,0,0.16);
  backdrop-filter: blur(18px) saturate(1.15);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
}

.brand-card { display: flex; align-items: center; gap: 13px; padding: 12px 16px; }
.brand-card strong { display: block; font-size: 18px; letter-spacing: -0.02em; }
.brand-mark { width: 42px; height: 42px; position: relative; transform: rotate(-8deg); }
.brand-mark span { position: absolute; display: block; width: 21px; height: 21px; border-radius: 5px; box-shadow: inset 0 0 0 1px rgba(255,255,255,.22); }
.brand-mark span:nth-child(1) { left: 0; bottom: 0; background: #69e6bd; }
.brand-mark span:nth-child(2) { right: 0; bottom: 0; background: #58b9ff; }
.brand-mark span:nth-child(3) { left: 10px; top: 0; background: #ffe67a; }

.eyebrow { color: var(--accent); font-size: 10px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }

.stats-card { display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; padding: 10px 14px; }
.stats-card div { min-width: 0; padding: 0 13px; border-left: 1px solid var(--line); }
.stats-card div:first-child { border-left: 0; }
.stats-card span, .result-grid span { display: block; color: var(--muted); font-size: 9px; font-weight: 750; letter-spacing: .13em; }
.stats-card strong { display: block; margin-top: 4px; font-size: 19px; font-variant-numeric: tabular-nums; white-space: nowrap; }
#livesValue { color: #ff8c98; font-size: 14px; letter-spacing: .12em; }

.difficulty-card { padding: 11px 15px 10px; }
.difficulty-title { display: flex; justify-content: space-between; align-items: center; margin-bottom: 7px; font-size: 12px; font-weight: 750; }
.difficulty-title b { border: 1px solid rgba(255,255,255,.18); border-radius: 999px; padding: 3px 7px; color: var(--accent); font-size: 8px; letter-spacing: .12em; }
.meter-row { display: grid; grid-template-columns: 30px 1fr; align-items: center; gap: 8px; margin-top: 5px; }
.meter-row > span { color: var(--muted); font-size: 9px; }
.meter-row i, .progress-wrap i { height: 4px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.1); }
.meter-row em, .progress-wrap em { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), #ffdb72); box-shadow: 0 0 12px rgba(124,247,207,.35); transition: width .45s ease; }

.progress-wrap {
  position: fixed;
  z-index: 9;
  top: calc(max(18px, env(safe-area-inset-top)) + 82px);
  left: 50%;
  width: min(430px, calc(100vw - 36px));
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 999px;
  background: rgba(9,15,25,.48);
  backdrop-filter: blur(12px);
  color: rgba(255,255,255,.52);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: .12em;
  pointer-events: none;
}

.panel {
  position: fixed;
  z-index: 20;
  left: 50%;
  top: 50%;
  width: min(560px, calc(100vw - 34px));
  transform: translate(-50%, -50%);
  padding: 30px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 28px;
  background:
    radial-gradient(circle at 85% 0%, rgba(124,247,207,.14), transparent 34%),
    linear-gradient(145deg, rgba(255,255,255,.08), rgba(255,255,255,.02)),
    var(--glass-strong);
  box-shadow: var(--shadow);
  backdrop-filter: blur(26px) saturate(1.15);
  -webkit-backdrop-filter: blur(26px) saturate(1.15);
  transition: opacity .22s ease, transform .22s ease;
  max-height: calc(100dvh - 34px);
  overflow: auto;
  overscroll-behavior: contain;
  touch-action: pan-y;
}
.panel.hidden { display: none; }
.panel h1 { margin: 8px 0 10px; font-size: clamp(34px, 7vw, 58px); line-height: .98; letter-spacing: -.055em; }
.panel p { margin: 0; color: var(--muted); line-height: 1.65; }
.hero-panel::after { content: ""; position: absolute; inset: 8px; border: 1px solid rgba(255,255,255,.045); border-radius: 21px; pointer-events: none; }

.round-tags { display: flex; flex-wrap: wrap; gap: 7px; margin: 20px 0 24px; }
.round-tags span { padding: 7px 10px; border: 1px solid rgba(255,255,255,.1); border-radius: 999px; background: rgba(255,255,255,.055); color: rgba(255,255,255,.78); font-size: 10px; font-weight: 700; letter-spacing: .02em; }

.panel-actions { display: flex; gap: 9px; margin-top: 24px; }
button { border: 0; cursor: pointer; }
.primary-button, .secondary-button {
  min-height: 50px;
  padding: 0 19px;
  border-radius: 14px;
  font-size: 13px;
  font-weight: 800;
  transition: transform .14s ease, filter .14s ease, background .14s ease;
}
.primary-button { flex: 1; background: var(--accent); color: #10201c; box-shadow: 0 12px 30px rgba(50,220,170,.22); }
.secondary-button { background: rgba(255,255,255,.08); color: var(--ink); border: 1px solid rgba(255,255,255,.12); }
.primary-button:hover, .secondary-button:hover { filter: brightness(1.08); transform: translateY(-1px); }
.primary-button:active, .secondary-button:active { transform: translateY(1px) scale(.99); }
kbd { padding: 2px 6px; border: 1px solid rgba(0,0,0,.2); border-bottom-width: 2px; border-radius: 5px; background: rgba(255,255,255,.22); font-family: inherit; font-size: .72em; }
.secondary-button kbd, .controls-copy kbd, .compact-panel kbd { border-color: rgba(255,255,255,.15); background: rgba(255,255,255,.08); }
.controls-copy { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 17px; color: rgba(255,255,255,.48); font-size: 10px; }

.compact-panel { width: min(410px, calc(100vw - 34px)); text-align: center; }
.compact-panel h1 { font-size: 42px; }
.compact-panel .primary-button { width: 100%; margin-top: 22px; }

.result-panel h1 { font-size: 48px; }
.result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 22px 0 17px; }
.result-grid div { padding: 14px; border: 1px solid rgba(255,255,255,.09); border-radius: 14px; background: rgba(255,255,255,.045); }
.result-grid strong { display: block; margin-top: 8px; font-size: 21px; font-variant-numeric: tabular-nums; }

.ad-panel {
  margin-top: 18px;
  min-height: 98px;
  padding: 9px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 16px;
  background:
    linear-gradient(135deg, rgba(124,247,207,.09), rgba(88,185,255,.045)),
    rgba(255,255,255,.04);
  pointer-events: auto;
}
.ad-panel[hidden] { display: none; }
.ad-label {
  display: block;
  margin: 0 2px 6px;
  color: rgba(255,255,255,.42);
  font: 800 8px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.ad-surface {
  position: relative;
  display: grid;
  min-height: 72px;
  place-items: center;
  overflow: hidden;
  border: 1px dashed rgba(255,255,255,.12);
  border-radius: 12px;
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,.045) 0 8px, rgba(255,255,255,.018) 8px 16px),
    rgba(8,14,24,.28);
}
.ad-surface::before,
.ad-surface::after {
  content: "";
  position: absolute;
  width: 52px;
  height: 52px;
  border: 1px solid rgba(124,247,207,.18);
  border-radius: 14px;
  transform: rotate(12deg);
}
.ad-surface::before { left: 12px; top: 8px; }
.ad-surface::after { right: 14px; bottom: 9px; transform: rotate(-10deg); }
.adsbygoogle {
  position: relative;
  z-index: 1;
  display: none;
  width: 100%;
  min-height: 72px;
}
.ad-panel.is-configured .adsbygoogle { display: block; }
.ad-panel.is-configured .ad-fallback { display: none; }
.ad-fallback {
  position: relative;
  z-index: 1;
  color: rgba(255,255,255,.48);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
}

.toast {
  position: fixed;
  z-index: 18;
  left: 50%;
  top: 25%;
  transform: translate(-50%, -50%);
  padding: 10px 15px;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 999px;
  background: rgba(8,14,24,.72);
  box-shadow: 0 10px 30px rgba(0,0,0,.24);
  backdrop-filter: blur(14px);
  font-size: 12px;
  font-weight: 780;
  pointer-events: none;
}
.toast.hidden { display: none; }

.gpu-badge {
  position: fixed;
  z-index: 10;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  padding: 7px 9px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 8px;
  background: rgba(7,12,20,.52);
  color: rgba(255,255,255,.44);
  font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
  backdrop-filter: blur(10px);
  pointer-events: none;
}

.site-links {
  position: fixed;
  z-index: 11;
  left: max(18px, env(safe-area-inset-left));
  bottom: max(16px, env(safe-area-inset-bottom));
  display: flex;
  gap: 8px;
  transition: opacity .18s ease;
}
.site-links a {
  padding: 7px 9px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 8px;
  background: rgba(7,12,20,.52);
  color: rgba(255,255,255,.58);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
  backdrop-filter: blur(10px);
}
.site-links a:hover { color: rgba(255,255,255,.86); border-color: rgba(124,247,207,.28); }
body[data-game-mode="playing"] .site-links,
body[data-game-mode="dying"] .site-links {
  opacity: 0;
  pointer-events: none;
}

.mobile-controls {
  position: fixed;
  z-index: 12;
  left: 50%;
  bottom: max(20px, env(safe-area-inset-bottom));
  display: none;
  align-items: center;
  gap: 7px;
  transform: translateX(-50%);
}
.mobile-controls button {
  width: 54px;
  height: 54px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 17px;
  background: rgba(8,14,23,.58);
  color: white;
  font-size: 22px;
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
  backdrop-filter: blur(14px);
}
.vertical-controls { display: grid; gap: 7px; }
.mobile-controls button:active { transform: scale(.94); background: rgba(124,247,207,.3); }

@media (max-width: 860px) {
  .hud { grid-template-columns: 1fr 1.45fr; }
  .difficulty-card { display: none; }
  .progress-wrap { top: calc(max(14px, env(safe-area-inset-top)) + 78px); }
  .gpu-badge { display: none; }
}

@media (max-width: 620px), (pointer: coarse) {
  .hud { top: max(10px, env(safe-area-inset-top)); left: max(10px, env(safe-area-inset-left)); right: max(10px, env(safe-area-inset-right)); grid-template-columns: 1fr; gap: 7px; }
  .brand-card { display: none; }
  .stats-card { min-height: 58px; padding: 8px 6px; border-radius: 15px; }
  .stats-card div { padding: 0 9px; }
  .stats-card strong { font-size: 16px; }
  .stats-card span { font-size: 8px; }
  .progress-wrap { top: calc(max(10px, env(safe-area-inset-top)) + 66px); }
  .panel { padding: 25px 22px; border-radius: 23px; }
  .panel h1 { font-size: 40px; }
  .panel-actions { flex-direction: column; }
  .ad-panel { min-height: 86px; margin-top: 14px; padding: 8px; }
  .ad-surface, .adsbygoogle { min-height: 60px; }
  .controls-copy { display: none; }
  .mobile-controls { display: flex; }
  .gpu-badge { display: none; }
  .site-links { display: none; }
  .toast { top: 21%; }
}

@media (max-height: 650px) and (orientation: landscape) {
  .hud { grid-template-columns: 160px 330px 230px; top: 10px; left: 10px; right: 10px; }
  .hud-card { min-height: 58px; }
  .brand-card { padding: 8px 12px; }
  .brand-mark { width: 35px; height: 35px; transform: scale(.82) rotate(-8deg); transform-origin: center; }
  .stats-card strong { font-size: 16px; }
  .difficulty-card { padding-top: 7px; }
  .progress-wrap { display: none; }
  .panel { padding: 21px 24px; width: min(520px, calc(100vw - 28px)); }
  .panel h1 { font-size: 38px; margin: 5px 0 7px; }
  .round-tags { margin: 12px 0 15px; }
  .panel-actions { margin-top: 15px; }
  .controls-copy { margin-top: 10px; }
  .ad-panel { min-height: 76px; margin-top: 12px; }
  .ad-surface, .adsbygoogle { min-height: 52px; }
  .mobile-controls { left: auto; right: 18px; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .001ms !important; animation-duration: .001ms !important; }
}

html.info-document,
html.info-document body {
  width: 100%;
  height: auto;
  min-height: 100%;
  overflow: auto;
}

html.info-document body {
  background:
    radial-gradient(circle at 20% 0%, rgba(124,247,207,.12), transparent 30%),
    radial-gradient(circle at 80% 10%, rgba(88,185,255,.12), transparent 32%),
    #0e1725;
  color: var(--ink);
  user-select: text;
  -webkit-user-select: text;
  touch-action: auto;
}

.info-shell {
  width: min(880px, calc(100vw - 34px));
  margin: 0 auto;
  padding: 48px 0 64px;
}

.info-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 42px;
}

.info-nav a,
.info-footer a {
  color: rgba(255,255,255,.72);
  text-decoration: none;
}

.info-nav a:hover,
.info-footer a:hover { color: var(--accent); }

.info-card {
  padding: 32px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  background: rgba(10,17,29,.72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.info-card h1 {
  margin: 8px 0 14px;
  font-size: clamp(34px, 6vw, 54px);
  line-height: 1.02;
}

.info-card h2 {
  margin: 30px 0 10px;
  font-size: 18px;
}

.info-card p,
.info-card li {
  color: rgba(235,244,255,.74);
  line-height: 1.75;
}

.info-card ul { padding-left: 20px; }
.info-footer { margin-top: 22px; color: rgba(255,255,255,.48); font-size: 12px; }