/* MOTTLE — Hide & Seek : visual system */

:root {
  --bg: #0a1512;
  --bg-2: #0e1d19;
  --panel: rgba(14, 30, 26, 0.92);
  --panel-line: rgba(120, 200, 170, 0.18);
  --ink: #eaf6f0;
  --ink-dim: #93b3a6;
  --ink-faint: #5f7d72;
  --accent: #ff7a5c;
  --accent-warm: #ffd479;
  --alert: #ff5a5a;
  --camo: #6fe0b0;
  --heart: #ff8f6b;

  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-l: env(safe-area-inset-left, 0px);
  --safe-r: env(safe-area-inset-right, 0px);

  --font: ui-rounded, "SF Pro Rounded", "Segoe UI", system-ui, -apple-system,
    "Helvetica Neue", Arial, sans-serif;
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  position: fixed;
  inset: 0;
  user-select: none;
  -webkit-user-select: none;
}

#app {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 50% -10%, #16302a 0%, var(--bg) 55%, #07110e 100%);
}

.backdrop { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.35;
}
.glow-a { width: 55vmax; height: 55vmax; left: -18vmax; top: -22vmax; background: #1d6b52; }
.glow-b { width: 48vmax; height: 48vmax; right: -16vmax; bottom: -20vmax; background: #6b3f2e; opacity: 0.28; }

#stage {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

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

.hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  transition: opacity 0.25s ease;
}
.hud.is-hidden { opacity: 0; }

.hud-chip {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 7px 12px;
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  min-width: 0;
}
.hud-label {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 700;
}
.hud-value {
  font-size: 22px;
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.hearts { display: flex; gap: 5px; padding-top: 4px; }
.heart {
  width: 15px;
  height: 15px;
  background: var(--heart);
  clip-path: polygon(50% 100%, 6% 42%, 6% 20%, 24% 6%, 50% 22%, 76% 6%, 94% 20%, 94% 42%);
  transition: transform 0.2s ease, opacity 0.3s ease;
}
.heart.lost { background: #33504a; opacity: 0.5; transform: scale(0.82); }
.heart.pop { transform: scale(1.35); }

.hud-actions { display: flex; gap: 8px; pointer-events: auto; }
.icon-btn {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 12px;
  color: var(--ink);
  cursor: pointer;
  padding: 0;
  transition: transform 0.12s ease, background 0.2s ease;
}
.icon-btn:active { transform: scale(0.92); }
.icon-btn .ico { width: 20px; height: 20px; fill: none; stroke: var(--ink); stroke-width: 1.8; stroke-linejoin: round; stroke-linecap: round; }
.icon-btn .ico-sound path:first-child,
.icon-btn .ico-mute path:first-child { fill: var(--ink); stroke: none; }
.icon-btn .ico-mute { display: none; }
.icon-btn.muted .ico-sound { display: none; }
.icon-btn.muted .ico-mute { display: block; }

/* meters */
.hud-botbar { display: flex; flex-direction: column; gap: 8px; }
.meter {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  padding: 7px 10px 9px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.meter-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 5px; }
.meter-name { font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-faint); font-weight: 700; }
.meter-num { font-size: 11px; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--ink-dim); }
.meter-track { height: 9px; border-radius: 6px; background: rgba(255, 255, 255, 0.08); overflow: hidden; }
.meter-fill { height: 100%; width: 0%; border-radius: 6px; transition: width 0.09s linear, background 0.2s ease; }
.meter-alert .meter-fill { background: linear-gradient(90deg, #ffb06a, var(--alert)); }
.meter-camo .meter-fill { background: linear-gradient(90deg, #4fd6a4, var(--camo)); }
.meter-alert.hot { animation: pulseAlert 0.5s ease-in-out infinite; }
@keyframes pulseAlert {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 90, 90, 0); border-color: var(--panel-line); }
  50% { box-shadow: 0 0 18px 0 rgba(255, 90, 90, 0.45); border-color: rgba(255, 90, 90, 0.7); }
}

.hud-hint { font-size: 12px; color: var(--ink-dim); text-align: center; font-weight: 600; letter-spacing: 0.02em; min-height: 16px; }

.hud-timer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 6px 16px;
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.hud-timer-label { font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-faint); font-weight: 700; }
.hud-timer-value { font-size: 20px; font-weight: 800; font-variant-numeric: tabular-nums; }
.hud-timer.urgent .hud-timer-value { color: var(--accent-warm); }

/* portrait layout */
.layout-portrait .hud-topbar {
  position: absolute;
  top: calc(var(--safe-t) + 8px);
  left: calc(var(--safe-l) + 10px);
  right: calc(var(--safe-r) + 10px);
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 8px;
  align-items: start;
}
.layout-portrait .hud-hearts-chip { justify-self: center; align-items: center; }
.layout-portrait .hud-timer { position: absolute; top: calc(var(--safe-t) + 82px); left: 50%; transform: translateX(-50%); }
.layout-portrait .hud-botbar {
  position: absolute;
  bottom: calc(var(--safe-b) + 10px);
  left: calc(var(--safe-l) + 10px);
  right: calc(var(--safe-r) + 10px);
}

/* landscape layout */
.layout-landscape .hud-topbar {
  position: absolute;
  top: calc(var(--safe-t) + 10px);
  left: calc(var(--safe-l) + 10px);
  bottom: calc(var(--safe-b) + 10px);
  width: 118px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: stretch;
}
.layout-landscape .hud-hearts-chip { align-items: flex-start; }
.layout-landscape .hud-actions { margin-top: auto; }
.layout-landscape .hud-timer {
  position: absolute;
  top: calc(var(--safe-t) + 10px);
  right: calc(var(--safe-r) + 10px);
  width: 132px;
}
.layout-landscape .hud-botbar {
  position: absolute;
  top: calc(var(--safe-t) + 92px);
  right: calc(var(--safe-r) + 10px);
  bottom: calc(var(--safe-b) + 10px);
  width: 132px;
}

/* ---------------- Banners ---------------- */

.banner {
  position: absolute;
  left: 50%;
  top: 46%;
  transform: translate(-50%, -50%) scale(0.9);
  text-align: center;
  z-index: 6;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.22s ease, transform 0.22s ease;
}
.banner.is-shown { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.banner-main {
  font-size: clamp(30px, 9vw, 54px);
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-shadow: 0 4px 26px rgba(0, 0, 0, 0.6);
}
.banner-sub { font-size: 14px; font-weight: 700; color: var(--ink-dim); letter-spacing: 0.08em; text-transform: uppercase; margin-top: 4px; }
.banner.tone-hide .banner-main { color: var(--camo); }
.banner.tone-seek .banner-main { color: var(--accent-warm); }
.banner.tone-bad .banner-main { color: var(--alert); }
.banner.tone-good .banner-main { color: var(--camo); }

/* ---------------- Attract cue ---------------- */

.attract-cue {
  position: absolute;
  left: 50%;
  bottom: calc(var(--safe-b) + 8%);
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  z-index: 7;
  text-align: center;
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}
.attract-cue.is-shown { opacity: 1; }
.cue-title { font-size: 26px; font-weight: 900; letter-spacing: 0.32em; text-indent: 0.32em; color: var(--ink); text-shadow: 0 2px 20px rgba(0, 0, 0, 0.7); }
.cue-tag { font-size: 12px; color: var(--ink-dim); letter-spacing: 0.06em; }
.cue-tap { margin-top: 8px; font-size: 13px; font-weight: 800; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent-warm); animation: cuePulse 1.8s ease-in-out infinite; }
@keyframes cuePulse { 0%, 100% { opacity: 0.55; } 50% { opacity: 1; } }

/* ---------------- Overlay panels ---------------- */

.overlay {
  position: absolute;
  inset: 0;
  z-index: 8;
  display: grid;
  place-items: center;
  padding: calc(var(--safe-t) + 16px) calc(var(--safe-r) + 16px) calc(var(--safe-b) + 16px) calc(var(--safe-l) + 16px);
  background: rgba(6, 14, 12, 0.62);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
.overlay.is-hidden { display: none; }

.panel {
  width: min(420px, 100%);
  max-height: 100%;
  overflow-y: auto;
  background: linear-gradient(180deg, #12241f 0%, #0d1c18 100%);
  border: 1px solid var(--panel-line);
  border-radius: 22px;
  padding: 22px 22px 20px;
  text-align: center;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.55);
  animation: panelIn 0.28s cubic-bezier(0.2, 0.9, 0.3, 1.2);
}
.panel.is-hidden { display: none; }
@keyframes panelIn { from { opacity: 0; transform: translateY(14px) scale(0.97); } to { opacity: 1; transform: none; } }

.panel-emblem { width: 62px; height: 62px; margin: 0 auto 10px; border-radius: 50%; background: radial-gradient(circle at 38% 32%, #7fe6bd, #2b7d5f 70%); box-shadow: inset 0 -6px 14px rgba(0,0,0,0.35); }
.panel-emblem.bad { background: radial-gradient(circle at 38% 32%, #ff9a7a, #a8342a 72%); }

.panel-title { margin: 0 0 4px; font-size: 30px; font-weight: 900; letter-spacing: 0.03em; text-transform: uppercase; }
.panel-sub { margin: 0 0 16px; font-size: 13px; color: var(--ink-dim); font-weight: 600; }

.score-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 14px; }
.score-box { background: rgba(255, 255, 255, 0.05); border: 1px solid var(--panel-line); border-radius: 12px; padding: 9px 4px; display: flex; flex-direction: column; gap: 3px; }
.score-label { font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-faint); font-weight: 700; }
.score-value { font-size: 20px; font-weight: 800; font-variant-numeric: tabular-nums; }

.best-badge {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-warm), var(--accent));
  color: #2a1408;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  animation: cuePulse 1.4s ease-in-out infinite;
}
.best-badge.is-hidden { display: none; }

.btn-primary {
  width: 100%;
  min-height: 52px;
  border: none;
  border-radius: 14px;
  background: linear-gradient(180deg, #6fe0b0, #34a97e);
  color: #06231a;
  font-family: inherit;
  font-size: 17px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(52, 169, 126, 0.35);
  transition: transform 0.12s ease, filter 0.2s ease;
}
.btn-primary:active { transform: translateY(2px) scale(0.99); filter: brightness(0.96); }
.btn-ghost {
  width: 100%;
  min-height: 46px;
  margin-top: 10px;
  border: 1px solid var(--panel-line);
  border-radius: 14px;
  background: transparent;
  color: var(--ink-dim);
  font-family: inherit;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}
.btn-ghost:active { transform: scale(0.99); }

.howto { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; text-align: left; }
.howto-row { display: grid; grid-template-columns: 78px 1fr; gap: 10px; align-items: center; }
.howto-key { font-size: 10px; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-warm); background: rgba(255, 212, 121, 0.1); border-radius: 7px; padding: 5px 6px; text-align: center; }
.howto-txt { font-size: 12px; color: var(--ink-dim); line-height: 1.35; }

.rotate-note {
  position: absolute;
  left: 50%;
  bottom: calc(var(--safe-b) + 10px);
  transform: translateX(-50%);
  z-index: 9;
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-dim);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.rotate-note.is-shown { opacity: 1; }
.is-hidden { display: none !important; }

@media (prefers-reduced-motion: reduce) {
  .best-badge, .cue-tap, .meter-alert.hot { animation: none; }
}