:root {
  --bg: #07070b;
  --bg-2: #0d0e16;
  --panel: rgba(18, 19, 28, 0.78);
  --border: rgba(255, 255, 255, 0.08);
  --text: #f1f1f5;
  --muted: #8a8aa0;
  --green: #38ff9c;
  --green-glow: #14ff8a;
  --red: #ff3a5e;
  --amber: #ffb020;
  --cyan: #2bd4ff;
  --magenta: #ff44c4;

  --font-display: 'Cabinet Grotesk', system-ui, sans-serif;
  --font-body: 'Satoshi', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --shadow-hud: 0 1px 2px rgba(0, 0, 0, 0.6), 0 0 14px rgba(0, 0, 0, 0.45);
}

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

html, body, #app {
  width: 100%; height: 100%;
  background: #000;
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

#app { position: relative; }

canvas#game {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  display: block;
  background: radial-gradient(ellipse at 50% 35%, #15172a 0%, #07070b 70%);
  cursor: pointer;
}

.ui {
  position: absolute; inset: 0;
  pointer-events: none;
  z-index: 10;
  font-family: var(--font-body);
}
.ui button, .ui [data-interactive] { pointer-events: auto; }

/* HUD --------------------------------------------------------- */
.hud {
  position: absolute; top: 0; left: 0; right: 0;
  padding: 14px 16px 0 16px;
  display: flex; flex-direction: column; gap: 8px;
}
.hud-row {
  display: grid;
  grid-template-columns: 64px 1fr 80px;
  gap: 10px;
  align-items: stretch;
}
.hud-cell {
  background: var(--panel);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 10px;
  padding: 8px 10px;
  display: flex; flex-direction: column; justify-content: center;
}
.hud-cell.wide { gap: 6px; }
.hud-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}
.hud-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  font-variant-numeric: tabular-nums lining-nums;
  line-height: 1;
}
.hud-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.hud-sub span { color: var(--text); }

.bar {
  position: relative;
  height: 10px;
  background: rgba(255,255,255,0.06);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.bar-fill {
  position: absolute; inset: 0;
  width: 0%;
  background: linear-gradient(90deg, var(--red) 0%, var(--amber) 50%, var(--green) 100%);
  transition: width 80ms linear;
  box-shadow: 0 0 14px rgba(56,255,156,0.4);
}
.bar-target {
  position: absolute;
  top: -3px; bottom: -3px;
  width: 2px;
  background: rgba(255,255,255,0.85);
  box-shadow: 0 0 10px rgba(255,255,255,0.65);
  pointer-events: none;
}

/* Ticker ------------------------------------------------------ */
.ticker {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  height: 26px;
  position: relative;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.ticker::before {
  content: 'LIVE';
  position: absolute; left: 0; top: 0; bottom: 0;
  padding: 0 8px;
  display: flex; align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  background: var(--red);
  z-index: 2;
  letter-spacing: 0.12em;
}
.ticker-track {
  display: inline-flex;
  white-space: nowrap;
  padding-left: 56px;
  animation: ticker 50s linear infinite;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 26px;
  color: #d8d8e4;
  gap: 28px;
}
.ticker-track .t-up { color: var(--green); }
.ticker-track .t-down { color: var(--red); }
.ticker-track .t-warn { color: var(--amber); }
@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Combo ------------------------------------------------------- */
.combo {
  position: absolute;
  top: 50%;
  left: 16px;
  transform: translateY(-50%);
  text-align: left;
  pointer-events: none;
  opacity: 0;
  transition: opacity 200ms ease;
}
.combo.active { opacity: 1; }
.combo-mult {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 10vw, 72px);
  line-height: 0.9;
  color: var(--green);
  text-shadow: 0 0 24px rgba(56,255,156,0.55), 0 2px 0 rgba(0,0,0,0.6);
  font-variant-numeric: tabular-nums;
}
.combo-mult.hot { color: var(--amber); text-shadow: 0 0 28px rgba(255,176,32,0.7); }
.combo-mult.ultra { color: var(--magenta); text-shadow: 0 0 32px rgba(255,68,196,0.8); }
.combo-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--muted);
  margin-top: 4px;
}

/* Screens ----------------------------------------------------- */
.screen {
  position: absolute; inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  pointer-events: auto;
  background: radial-gradient(ellipse at 50% 30%, rgba(20,21,30,0.55) 0%, rgba(7,7,11,0.92) 70%);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: fadeIn 220ms ease;
}
.screen.show { display: flex; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.screen-inner {
  width: 100%;
  max-width: 640px;
  text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
}
.screen-inner.narrow { max-width: 460px; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--muted);
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
  text-transform: uppercase;
}
.eyebrow.danger { color: var(--red); border-color: rgba(255,58,94,0.45); }
.eyebrow.good { color: var(--green); border-color: rgba(56,255,156,0.45); }

.title-art {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(60px, 14vw, 130px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--text);
  text-shadow: 0 6px 0 rgba(0,0,0,0.5);
  margin: 6px 0 0;
}
.title-stroke {
  color: transparent;
  -webkit-text-stroke: 2px var(--green);
  display: inline-block;
}
.subtitle {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--green);
  text-transform: uppercase;
}
.blurb {
  font-size: 15px;
  color: #c8c8d4;
  line-height: 1.5;
  max-width: 520px;
}
.blurb em { color: var(--amber); font-style: normal; font-weight: 700; }

.brief-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 5vw, 40px);
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.brief-body {
  font-size: 15px;
  color: #b6b6c4;
  line-height: 1.55;
}
.brief-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 8px;
  width: 100%;
  margin: 4px 0 6px;
}
.brief-stats .stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  text-align: left;
}
.brief-stats .stat .k {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.brief-stats .stat .v {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  margin-top: 2px;
  font-variant-numeric: tabular-nums;
}

.share-panel {
  width: 100%;
  min-height: 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.share-score {
  width: 100%;
  border: 1px solid rgba(56,255,156,0.28);
  border-radius: 10px;
  background: rgba(56,255,156,0.07);
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--green);
  text-align: center;
}
.share-score strong {
  display: block;
  margin-top: 4px;
  font-family: var(--font-display);
  font-size: 28px;
  line-height: 1;
  letter-spacing: 0;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.share-status {
  min-height: 16px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.share-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.btn {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.04em;
  padding: 14px 28px;
  border-radius: 12px;
  border: 1px solid var(--green);
  background: var(--green);
  color: #04140b;
  cursor: pointer;
  transition: transform 120ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 120ms, background 120ms;
  box-shadow: 0 8px 0 #0c8a4a, 0 0 0 rgba(56,255,156,0.0);
  margin-top: 6px;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 9px 0 #0c8a4a, 0 0 24px rgba(56,255,156,0.35); }
.btn:active { transform: translateY(4px); box-shadow: 0 4px 0 #0c8a4a; }
.btn--ghost {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
  box-shadow: none;
}
.btn--ghost:hover { color: var(--text); box-shadow: none; border-color: var(--text); }
.btn--ghost:active { transform: translateY(1px); box-shadow: none; }
.btn--share {
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 8px 0 #0e7992, 0 0 0 rgba(43,212,255,0);
  color: #031014;
  text-decoration: none;
}
.btn--share:hover {
  box-shadow: 0 9px 0 #0e7992, 0 0 24px rgba(43,212,255,0.35);
}
.btn--compact {
  padding: 12px 18px;
  font-size: 14px;
  text-decoration: none;
}

.footer {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.16em;
  margin-top: 8px;
  text-transform: uppercase;
}

/* Icon buttons ------------------------------------------------ */
.iconbtn {
  position: absolute;
  right: 12px;
  top: 112px;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--panel);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  cursor: pointer;
  z-index: 5;
}
.iconbtn:hover { color: var(--green); border-color: rgba(56,255,156,0.45); }
.iconbtn--mute { top: 152px; }

/* Screen state visibility ------------------------------------ */
body[data-state="title"] [data-hide-on~="title"] { display: none !important; }
body[data-state="brief"] [data-hide-on~="brief"] { display: none !important; }
body[data-state="paused"] [data-hide-on~="paused"] { display: none !important; }
body[data-state="gameover"] [data-hide-on~="gameover"] { display: none !important; }
body[data-state="victory"] [data-hide-on~="victory"] { display: none !important; }

body[data-state="title"] [data-screen="title"],
body[data-state="brief"] [data-screen="brief"],
body[data-state="paused"] [data-screen="paused"],
body[data-state="gameover"] [data-screen="gameover"],
body[data-state="victory"] [data-screen="victory"] { display: flex; }

/* Screen shake ------------------------------------------------ */
.shake-1 { animation: shake1 90ms ease; }
.shake-2 { animation: shake2 140ms ease; }
@keyframes shake1 { 0%,100%{transform:translate(0,0);} 50%{transform:translate(-2px, 1px);} }
@keyframes shake2 { 0%,100%{transform:translate(0,0);} 25%{transform:translate(-6px,3px);} 50%{transform:translate(5px,-3px);} 75%{transform:translate(-4px,2px);} }

/* Responsive small screens */
@media (max-width: 480px) {
  .hud { padding: 10px 10px 0; }
  .hud-row { grid-template-columns: 50px 1fr 64px; gap: 6px; }
  .hud-value { font-size: 18px; }
  .hud-cell { padding: 6px 8px; }
  .combo { left: 10px; }
  .iconbtn { right: 10px; top: 130px; }
  .iconbtn--mute { top: 168px; }
  .title-art { font-size: clamp(54px, 18vw, 110px); }
  .brief-stats { grid-template-columns: repeat(2, 1fr); }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; padding-left: 56px; }
  .shake-1, .shake-2 { animation: none; }
}