/* ============================================================================
   FATHOM — stylesheet
   A bioluminescent abyss. Everything is dark; light is precious.
   Palette: abyssal blue-black backgrounds, cyan/teal "living light" accents,
   with warm anglerfish-amber and danger-magenta for contrast.
   ========================================================================== */

:root {
  --bg-abyss:   #02040a;
  --bg-deep:    #04070f;
  --ink:        #0a1322;

  --glow:       #6cf2ff;   /* primary living light */
  --glow-soft:  #2bd6e6;
  --glow-dim:   #14808f;
  --lure:       #ffcf6b;   /* anglerfish amber */
  --danger:     #ff4d7d;   /* predators / damage */
  --danger-2:   #b03cff;   /* corruption / elites */
  --gold:       #ffe49a;   /* pearls / meta currency */
  --xp:         #8affc1;   /* essence green */

  --text:       #cfe6ef;
  --text-dim:   #6f8ba0;
  --text-faint: #3c5266;

  --panel:      rgba(8, 16, 28, 0.82);
  --panel-line: rgba(108, 242, 255, 0.18);

  --ui-font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Consolas", ui-monospace, monospace;

  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg-abyss);
  color: var(--text);
  font-family: var(--ui-font);
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
  overscroll-behavior: none;
}

#stage {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse 120% 90% at 50% 18%, #060c18 0%, var(--bg-abyss) 60%, #000 100%);
  overflow: hidden;
}

#game {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: optimizeSpeed;
}

.hidden { display: none !important; }
.faded { opacity: 0; pointer-events: none; }

/* ============================================================================
   HUD
   ========================================================================== */
#hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 10;
  padding: calc(10px + var(--safe-top)) 12px calc(10px + var(--safe-bottom));
  font-variant-numeric: tabular-nums;
}

#hud-top {
  position: absolute;
  top: calc(8px + var(--safe-top));
  left: 0; right: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 0 16px;
}

#depth-meter {
  flex: 1;
  text-align: center;
  order: 2;
  line-height: 1;
}
#depth-value {
  display: block;
  font-size: clamp(28px, 6vw, 46px);
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--glow);
  text-shadow: 0 0 18px rgba(108, 242, 255, 0.55), 0 0 40px rgba(108, 242, 255, 0.25);
  font-variant-numeric: tabular-nums;
}
#depth-unit {
  display: block;
  margin-top: 2px;
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--text-dim);
}

#run-clock {
  order: 1;
  min-width: 64px;
  text-align: left;
  font-family: var(--mono);
  font-size: 15px;
  color: var(--text-dim);
  padding-top: 6px;
}
#hud-stats {
  order: 3;
  min-width: 64px;
  text-align: right;
  padding-top: 6px;
  font-family: var(--mono);
  font-size: 15px;
  color: var(--text-dim);
}
#hud-stats #kills-stat::before {
  content: "☠ ";
  color: var(--danger);
  opacity: 0.8;
}

/* XP bar runs thin across the very top */
#xp-track {
  position: absolute;
  top: var(--safe-top);
  left: 0; right: 0;
  height: 4px;
  background: rgba(138, 255, 193, 0.08);
}
#xp-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--glow-dim), var(--xp));
  box-shadow: 0 0 10px rgba(138, 255, 193, 0.7);
  transition: width 0.18s ease-out;
}
#xp-level {
  position: absolute;
  top: 7px;
  right: 12px;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--xp);
  opacity: 0.85;
}

/* Health bar at the bottom-center */
#health-wrap {
  position: absolute;
  bottom: calc(14px + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  width: min(46%, 360px);
  height: 14px;
  border-radius: 8px;
  background: rgba(255, 77, 125, 0.1);
  border: 1px solid rgba(255, 77, 125, 0.25);
  overflow: hidden;
}
#health-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #ff4d7d, #ff8aa6);
  box-shadow: 0 0 12px rgba(255, 77, 125, 0.6);
  transition: width 0.12s linear;
}
#health-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-family: var(--mono);
  letter-spacing: 1px;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.8);
}

/* Weapon / passive icon strip */
#weapon-bar {
  position: absolute;
  bottom: calc(36px + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 70%;
}
.wslot {
  width: 30px; height: 30px;
  border-radius: 7px;
  background: rgba(8, 16, 28, 0.7);
  border: 1px solid var(--panel-line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  position: relative;
}
.wslot .wlv {
  position: absolute;
  bottom: -2px; right: -2px;
  font-size: 9px;
  font-family: var(--mono);
  background: var(--ink);
  border-radius: 4px;
  padding: 0 2px;
  color: var(--glow-soft);
}
.wslot.maxed { border-color: var(--lure); box-shadow: 0 0 8px rgba(255,207,107,0.4); }
.wslot.passive { border-color: rgba(138,255,193,0.25); }
.wslot.evo-ready { border-color: var(--lure); animation: evopulse 0.9s ease-in-out infinite; }
@keyframes evopulse {
  0%, 100% { box-shadow: 0 0 6px rgba(255,207,107,0.5); }
  50% { box-shadow: 0 0 16px rgba(255,207,107,0.95); }
}

/* Boss health bar */
#boss-bar {
  position: absolute;
  top: calc(70px + var(--safe-top));
  left: 50%;
  transform: translateX(-50%);
  width: min(80%, 520px);
  text-align: center;
}
#boss-name {
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--danger-2);
  margin-bottom: 4px;
  text-shadow: 0 0 12px rgba(176, 60, 255, 0.6);
}
#boss-track {
  height: 8px;
  background: rgba(176, 60, 255, 0.12);
  border: 1px solid rgba(176, 60, 255, 0.3);
  border-radius: 5px;
  overflow: hidden;
}
#boss-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #7a1fff, #d06bff);
  box-shadow: 0 0 14px rgba(176, 60, 255, 0.7);
  transition: width 0.15s linear;
}

/* Floating toasts (events, pickups, milestones) */
#toast-zone {
  position: absolute;
  top: calc(108px + var(--safe-top));
  left: 0; right: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.toast {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--text);
  animation: toast-in 0.3s ease-out, toast-out 0.5s ease-in forwards;
  animation-delay: 0s, 2.4s;
  backdrop-filter: blur(6px);
}
.toast.warn { border-color: rgba(255,77,125,0.5); color: #ffd0dc; }
.toast.good { border-color: rgba(138,255,193,0.5); color: var(--xp); }
.toast.mark {
  border-color: var(--gold);
  color: var(--gold);
  box-shadow: 0 0 24px rgba(255,228,154,0.28);
  letter-spacing: 1.5px;
  font-weight: 600;
}
@keyframes toast-in { from { opacity: 0; transform: translateY(-8px) scale(0.96); } }
@keyframes toast-out { to { opacity: 0; transform: translateY(-6px); } }

/* ============================================================================
   Joystick (touch)
   ========================================================================== */
#joystick {
  position: absolute;
  inset: 0;
  z-index: 9;
  pointer-events: none;
}
#joystick-base {
  position: absolute;
  width: 120px; height: 120px;
  border-radius: 50%;
  border: 2px solid rgba(108, 242, 255, 0.25);
  background: radial-gradient(circle, rgba(108,242,255,0.06), transparent 70%);
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.12s;
}
#joystick-base.active { opacity: 1; }
#joystick-knob {
  position: absolute;
  top: 50%; left: 50%;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108,242,255,0.5), rgba(108,242,255,0.12));
  border: 1px solid rgba(108, 242, 255, 0.6);
  box-shadow: 0 0 16px rgba(108,242,255,0.4);
  transform: translate(-50%, -50%);
}

/* ============================================================================
   Overlay screens (menu, level-up, game over, meta)
   ========================================================================== */
#overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(16px + var(--safe-top)) 16px calc(16px + var(--safe-bottom));
  background: radial-gradient(ellipse at 50% 40%, rgba(2,6,14,0.55) 0%, rgba(1,3,8,0.92) 75%);
  backdrop-filter: blur(3px);
  overflow-y: auto;
}
#overlay.hidden { display: none; }
#overlay.no-dim { background: none; backdrop-filter: none; }
#overlay-inner {
  width: 100%;
  max-width: 760px;
  margin: auto;
  animation: rise 0.35s cubic-bezier(0.2, 0.9, 0.25, 1);
}
@keyframes rise { from { opacity: 0; transform: translateY(16px); } }

/* Title screen */
.title-block { text-align: center; margin-bottom: 26px; }
.game-title {
  font-size: clamp(54px, 15vw, 120px);
  font-weight: 800;
  letter-spacing: clamp(6px, 3vw, 22px);
  line-height: 0.9;
  color: var(--glow);
  text-shadow:
    0 0 24px rgba(108, 242, 255, 0.55),
    0 0 60px rgba(108, 242, 255, 0.3),
    0 0 120px rgba(43, 214, 230, 0.2);
  margin-left: clamp(6px, 3vw, 22px); /* compensate trailing letter-spacing */
}
.game-subtitle {
  margin-top: 10px;
  font-size: clamp(11px, 2.6vw, 14px);
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--text-dim);
}
.best-line {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-dim);
}
.best-line b { color: var(--glow-soft); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  pointer-events: auto;
  cursor: pointer;
  border: 1px solid var(--panel-line);
  background: linear-gradient(180deg, rgba(12,24,40,0.9), rgba(6,12,22,0.9));
  color: var(--text);
  font-family: var(--ui-font);
  font-size: 16px;
  letter-spacing: 2px;
  padding: 14px 28px;
  border-radius: 12px;
  transition: transform 0.08s, border-color 0.15s, box-shadow 0.15s, background 0.15s;
  text-transform: uppercase;
}
.btn:hover { border-color: var(--glow-soft); box-shadow: 0 0 22px rgba(108,242,255,0.18); }
.btn:active { transform: scale(0.97); }
.btn.primary {
  border-color: var(--glow);
  color: var(--glow);
  box-shadow: 0 0 28px rgba(108, 242, 255, 0.2), inset 0 0 22px rgba(108,242,255,0.06);
  font-weight: 700;
}
.btn.primary:hover { box-shadow: 0 0 40px rgba(108, 242, 255, 0.36), inset 0 0 22px rgba(108,242,255,0.1); }
.btn.big { font-size: 20px; padding: 18px 44px; letter-spacing: 4px; }
.btn.ghost { background: transparent; }
.btn.gold { border-color: var(--gold); color: var(--gold); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; filter: grayscale(0.5); }

.btn-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 8px; }

/* Generic panel */
.panel {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 16px;
  padding: 18px;
  backdrop-filter: blur(8px);
}
.panel-title {
  font-size: 13px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 14px;
  text-align: center;
}

/* ---- Creature picker (main menu) ---- */
.creature-strip {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 6px 2px 12px;
  scrollbar-width: thin;
  justify-content: center;
  flex-wrap: wrap;
}
.creature-card {
  flex: 0 0 auto;
  width: 124px;
  pointer-events: auto;
  cursor: pointer;
  background: rgba(8, 16, 28, 0.7);
  border: 1px solid var(--panel-line);
  border-radius: 14px;
  padding: 12px 10px;
  text-align: center;
  transition: transform 0.1s, border-color 0.15s, box-shadow 0.15s;
  position: relative;
}
.creature-card:hover { transform: translateY(-3px); }
.creature-card.selected {
  border-color: var(--glow);
  box-shadow: 0 0 24px rgba(108,242,255,0.25);
}
.creature-card.locked { filter: grayscale(0.85) brightness(0.55); cursor: not-allowed; }
.creature-emblem {
  width: 56px; height: 56px;
  margin: 0 auto 8px;
}
.creature-name {
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--text);
  margin-bottom: 3px;
}
.creature-tag {
  font-size: 10px;
  color: var(--glow-soft);
  letter-spacing: 1px;
  min-height: 13px;
}
.creature-card.locked .creature-tag { color: var(--text-faint); }
.creature-cost {
  margin-top: 6px;
  font-size: 11px;
  color: var(--gold);
}

/* ---- Level-up cards ---- */
#levelup-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  max-width: 680px;
  margin: 0 auto;
}
.lvcard {
  pointer-events: auto;
  cursor: pointer;
  background: linear-gradient(180deg, rgba(10,20,34,0.95), rgba(6,12,22,0.95));
  border: 1px solid var(--panel-line);
  border-radius: 14px;
  padding: 16px 14px;
  text-align: center;
  transition: transform 0.1s, border-color 0.15s, box-shadow 0.15s;
  position: relative;
  overflow: hidden;
}
.lvcard:hover { transform: translateY(-4px); border-color: var(--glow); box-shadow: 0 0 30px rgba(108,242,255,0.2); }
.lvcard::before {
  content: "";
  position: absolute;
  top: -40%; left: -40%;
  width: 180%; height: 60%;
  background: linear-gradient(transparent, rgba(108,242,255,0.05));
  transform: rotate(8deg);
  pointer-events: none;
}
.lvcard .lvc-icon { font-size: 34px; margin-bottom: 8px; filter: drop-shadow(0 0 10px currentColor); }
.lvcard .lvc-name { font-size: 15px; letter-spacing: 1px; margin-bottom: 4px; color: var(--text); }
.lvcard .lvc-kind {
  font-size: 9px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--text-faint); margin-bottom: 8px;
}
.lvcard .lvc-desc { font-size: 12px; line-height: 1.45; color: var(--text-dim); }
.lvcard .lvc-tier {
  position: absolute; top: 8px; right: 10px;
  font-size: 10px; font-family: var(--mono); color: var(--glow-soft);
}
.lvcard.evolve { border-color: var(--lure); }
.lvcard.evolve:hover { box-shadow: 0 0 34px rgba(255,207,107,0.3); }
.lvcard.evolve .lvc-kind { color: var(--lure); }
.lvcard.new-w .lvc-kind { color: var(--xp); }
.lvcard.heal { border-color: rgba(255,77,125,0.4); }

.lv-banner {
  text-align: center;
  font-size: clamp(20px, 5vw, 30px);
  font-weight: 800;
  letter-spacing: 6px;
  color: var(--glow);
  text-shadow: 0 0 20px rgba(108,242,255,0.5);
  margin-bottom: 4px;
}
.lv-sub { text-align: center; color: var(--text-dim); font-size: 12px; letter-spacing: 2px; margin-bottom: 18px; }

/* ---- Game over ---- */
.go-title {
  text-align: center;
  font-size: clamp(30px, 8vw, 54px);
  font-weight: 800;
  letter-spacing: 8px;
  color: var(--danger);
  text-shadow: 0 0 26px rgba(255,77,125,0.5);
  margin-bottom: 6px;
}
.go-depth {
  text-align: center;
  font-size: clamp(40px, 11vw, 76px);
  font-weight: 800;
  color: var(--glow);
  text-shadow: 0 0 30px rgba(108,242,255,0.5);
  line-height: 1;
}
.go-depth small { display:block; font-size: 12px; letter-spacing: 5px; color: var(--text-dim); font-weight: 400; margin-top: 6px; text-transform: uppercase; }
.go-newbest { text-align:center; color: var(--gold); letter-spacing: 3px; font-size: 13px; margin-top: 8px; animation: pulse 1.4s infinite; }
@keyframes pulse { 50% { opacity: 0.5; } }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 10px;
  margin: 20px 0;
}
.stat-cell {
  background: rgba(8,16,28,0.6);
  border: 1px solid var(--panel-line);
  border-radius: 10px;
  padding: 12px 8px;
  text-align: center;
}
.stat-cell .sv { font-size: 22px; font-weight: 700; color: var(--text); font-variant-numeric: tabular-nums; }
.stat-cell .sl { font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--text-faint); margin-top: 4px; }
.stat-cell.pearl .sv { color: var(--gold); }

/* ---- Meta / depths-shop ---- */
.meta-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; gap: 12px; }
.pearl-bank {
  font-size: 18px; color: var(--gold);
  display: flex; align-items: center; gap: 8px;
}
.pearl-bank::before { content: "◐"; font-size: 20px; text-shadow: 0 0 12px rgba(255,228,154,0.6); }

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}
.meta-node {
  pointer-events: auto;
  cursor: pointer;
  background: rgba(8,16,28,0.7);
  border: 1px solid var(--panel-line);
  border-radius: 12px;
  padding: 12px;
  transition: transform 0.1s, border-color 0.15s, box-shadow 0.15s;
}
.meta-node:hover { transform: translateY(-2px); border-color: var(--glow-soft); }
.meta-node.maxed { border-color: var(--xp); cursor: default; }
.meta-node.cant { opacity: 0.55; }
.meta-node .mn-top { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.meta-node .mn-icon { font-size: 22px; filter: drop-shadow(0 0 6px currentColor); }
.meta-node .mn-name { font-size: 13px; letter-spacing: 1px; color: var(--text); }
.meta-node .mn-desc { font-size: 11px; color: var(--text-dim); line-height: 1.4; min-height: 30px; }
.meta-node .mn-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 8px; }
.meta-pips { display: flex; gap: 3px; }
.meta-pip { width: 10px; height: 5px; border-radius: 2px; background: rgba(108,242,255,0.15); }
.meta-pip.on { background: var(--glow); box-shadow: 0 0 6px rgba(108,242,255,0.6); }
.meta-cost { font-size: 12px; color: var(--gold); }
.meta-node.maxed .meta-cost { color: var(--xp); }

/* Small helper text + tab nav */
.tabrow { display: flex; gap: 8px; justify-content: center; margin-bottom: 18px; flex-wrap: wrap; }
.tab {
  pointer-events: auto; cursor: pointer;
  padding: 8px 18px; border-radius: 20px;
  border: 1px solid var(--panel-line);
  background: transparent; color: var(--text-dim);
  font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
  transition: 0.15s;
}
.tab.active { color: var(--glow); border-color: var(--glow); background: rgba(108,242,255,0.06); }

.hint { text-align: center; color: var(--text-faint); font-size: 12px; line-height: 1.6; margin-top: 14px; }
.hint kbd {
  font-family: var(--mono); font-size: 11px;
  background: var(--ink); border: 1px solid var(--panel-line);
  border-radius: 4px; padding: 1px 6px; color: var(--glow-soft);
}

.section-gap { height: 18px; }

/* Pause cog */
.corner-btn {
  position: absolute;
  top: calc(8px + var(--safe-top));
  right: 10px;
  z-index: 15;
  width: 38px; height: 38px;
  border-radius: 10px;
  border: 1px solid var(--panel-line);
  background: var(--panel);
  color: var(--text-dim);
  font-size: 14px;
  letter-spacing: 1px;
  cursor: pointer;
  pointer-events: auto;
}
.corner-btn:hover { color: var(--glow); border-color: var(--glow-soft); }

/* Settings rows */
.setting-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 4px; border-bottom: 1px solid rgba(108,242,255,0.08);
}
.setting-row:last-child { border-bottom: none; }
.setting-row .sr-label { font-size: 14px; color: var(--text); letter-spacing: 1px; }
.toggle {
  pointer-events: auto; cursor: pointer;
  width: 50px; height: 26px; border-radius: 14px;
  background: var(--ink); border: 1px solid var(--panel-line);
  position: relative; transition: 0.15s;
}
.toggle::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--text-faint); transition: 0.15s;
}
.toggle.on { background: rgba(108,242,255,0.15); border-color: var(--glow); }
.toggle.on::after { left: 26px; background: var(--glow); box-shadow: 0 0 10px rgba(108,242,255,0.6); }

/* Scrollbars (webkit) */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: rgba(108,242,255,0.2); border-radius: 4px; }
::-webkit-scrollbar-track { background: transparent; }

/* Damage flash vignette (driven by JS toggling a class) */
#stage.hurt::after {
  content: "";
  position: absolute; inset: 0; pointer-events: none; z-index: 12;
  box-shadow: inset 0 0 120px 30px rgba(255, 77, 125, 0.5);
  animation: hurtflash 0.4s ease-out forwards;
}
@keyframes hurtflash { from { opacity: 1; } to { opacity: 0; } }

/* Low-health pulsing vignette */
#stage.lowhp::before {
  content: "";
  position: absolute; inset: 0; pointer-events: none; z-index: 11;
  box-shadow: inset 0 0 100px 20px rgba(255, 77, 125, 0.28);
  animation: lowpulse 1.1s ease-in-out infinite;
}
@keyframes lowpulse { 50% { box-shadow: inset 0 0 130px 36px rgba(255, 77, 125, 0.42); } }

@media (max-width: 520px) {
  .btn { font-size: 14px; padding: 12px 20px; }
  .creature-card { width: 108px; }
  #health-wrap { width: 70%; }
  #weapon-bar { max-width: 92%; }
}

/* Respect reduced-motion for the menu chrome (gameplay still animates) */
@media (prefers-reduced-motion: reduce) {
  #overlay-inner, .toast { animation-duration: 0.001s; }
}