/* ═══ Echo Forge — Game UI ═══ */

/* ─── Palette ─── */
:root {
  color-scheme: dark;
  --ink: #e8edf8; --ink-bright: #f8faff; --muted: #7b8db5;
  --bg-void: #050810; --bg-deep: #0a0f1e; --bg-card: #0f1628; --bg-card-hover: #141d35;
  --line: #1a2744; --line-bright: #253558;
  --bg-panel: #111b30; --emerald: #10b981;
  --cyan: #22d3ee; --cyan-mid: #0891b2; --cyan-dim: #0e4f5f; --cyan-glow: rgba(34,211,238,0.25);
  --violet: #8b5cf6; --violet-mid: #6d28d9; --violet-dim: #3b1a6e; --violet-glow: rgba(139,92,246,0.25);
  --amber: #fbbf24; --amber-glow: rgba(251,191,36,0.2);
  --green: #34d399; --green-dim: #065f46; --green-glow: rgba(52,211,153,0.15);
  --red: #f87171; --red-dim: #7f1d1d;
}

/* ─── Reset ─── */
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh;
  background: var(--bg-void);
  color: var(--ink);
  font: 15px/1.55 system-ui, -apple-system, sans-serif;
}
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 18% 82%, rgba(34,211,238,0.04) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 82% 18%, rgba(139,92,246,0.05) 0%, transparent 70%);
  transition: background 0.8s ease;
}
body[data-stage="resonant_hall"]::before {
  background:
    radial-gradient(ellipse 80% 60% at 18% 82%, rgba(34,211,238,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 82% 18%, rgba(139,92,246,0.06) 0%, transparent 70%);
}
body[data-stage="cinder_forge"]::before {
  background:
    radial-gradient(ellipse 80% 60% at 20% 85%, rgba(249,115,22,0.11) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(239,68,68,0.08) 0%, transparent 70%);
}
body[data-stage="void_beneath"]::before {
  background:
    radial-gradient(ellipse 80% 60% at 20% 80%, rgba(16,185,129,0.09) 0%, transparent 70%),
    radial-gradient(ellipse 70% 50% at 75% 25%, rgba(99,102,241,0.08) 0%, transparent 70%);
}
main { position: relative; z-index: 1; width: min(1080px,100%); margin: auto; padding: 20px 24px 40px; }
h1,h2,h3,p { margin-top: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

/* ─── Interactive base ─── */
button, select {
  min-height: 44px; font: inherit; color: var(--ink);
  background: var(--bg-card); border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 16px; cursor: pointer;
  transition: border-color .2s, box-shadow .2s, background .2s, opacity .2s;
}
button:hover:not(:disabled) { border-color: var(--cyan); box-shadow: 0 0 12px var(--cyan-glow); }
button:disabled { opacity: .35; cursor: not-allowed; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; }

/* ─── Header ─── */
header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.header-actions { display: flex; align-items: center; gap: 10px; }
.sound-toggle-label {
  min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer; border-radius: 8px; border: 1px solid var(--line); background: var(--bg-card);
  color: var(--ink-bright); transition: border-color .2s ease;
}
.sound-toggle-label:hover { border-color: var(--cyan); }
.sound-toggle-label input { position: absolute; opacity: 0; width: 0; height: 0; }
.sound-toggle-label .sound-icon { font-size: 1.25rem; line-height: 1; }
.sound-toggle-label:has(input:not(:checked)) .sound-icon { opacity: 0.4; }
h1 {
  font-size: clamp(2rem,6vw,3.2rem); font-weight: 900; letter-spacing: -.02em; margin-bottom: 2px;
  background: linear-gradient(135deg, var(--cyan) 0%, #a78bfa 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 20px var(--cyan-glow));
}
.tagline { color: var(--muted); font-size: .92rem; margin-bottom: 0; }

/* ─── Status bar ─── */
#system-status {
  min-height: 38px; padding: 8px 14px; margin-bottom: 12px;
  font-size: .85rem; color: var(--muted);
  border-left: 3px solid var(--line-bright); background: rgba(15,22,42,.5); border-radius: 0 8px 8px 0;
}
#system-status[data-tone="success"] { border-color: var(--green); color: #a7f3d0; }
#system-status[data-tone="warning"] { border-color: var(--amber); color: #fde68a; }
#system-status[data-tone="error"]   { border-color: var(--red);   color: #fecaca; }

/* ─── Setup screen ─── */
#setup {
  max-width: 520px; margin: 48px auto;
  background: var(--bg-card); border: 1px solid var(--line); border-radius: 16px;
  padding: 32px 28px; box-shadow: 0 0 60px rgba(0,0,0,.5), 0 0 120px rgba(34,211,238,.03);
}
#setup h2 { font-size: 1.35rem; font-weight: 800; text-align: center; margin-bottom: 24px; color: var(--ink-bright); }
.setup-row { display: flex; flex-wrap: wrap; gap: 16px; align-items: end; }
.setup-field {
  flex: 1; min-width: 170px; display: grid; gap: 6px;
  color: var(--muted); font-weight: 600; font-size: .82rem;
  text-transform: uppercase; letter-spacing: .06em;
}
.setup-field select { font-size: 1rem; font-weight: 600; color: var(--ink-bright); text-transform: none; letter-spacing: normal; }
.field-help { color: var(--muted); font-size: .8rem; font-weight: 400; text-transform: none; letter-spacing: normal; max-width: 30rem; }
.start-btn {
  width: 100%; margin-top: 10px; font-size: 1.1rem; font-weight: 700;
  padding: 14px 20px; border-radius: 12px;
  text-transform: uppercase; letter-spacing: .06em;
}

/* ─── Button variants ─── */
.primary  { background: linear-gradient(135deg, var(--cyan-mid), var(--cyan-dim)); border-color: var(--cyan); color: #fff; font-weight: 700; }
.primary:hover:not(:disabled) { box-shadow: 0 0 20px var(--cyan-glow), 0 0 40px rgba(34,211,238,.1); }
.danger   { background: linear-gradient(135deg, #991b1b, var(--red-dim)); border-color: var(--red); color: #fff; font-weight: 600; font-size: .82rem; padding: 8px 16px; }
.success  { background: linear-gradient(135deg, #047857, var(--green-dim)); border-color: var(--green); color: #fff; font-weight: 700; }

/* ─── Battle: Health meters ─── */
#battle { margin-top: 8px; }
.meter-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.meter-card { background: var(--bg-card); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; }
.hero-meter  { border-color: var(--cyan-dim); }
.enemy-meter { border-color: var(--violet-dim); }
.meter-line { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; font-size: .88rem; }
.meter-line strong { font-size: .95rem; }
.hero-meter  .meter-line strong { color: var(--cyan); }
.enemy-meter .meter-line strong { color: var(--violet); }

.hp-bar-wrapper { position: relative; width: 100%; height: 14px; margin: 5px 0; border-radius: 7px; background: var(--bg-void); overflow: hidden; }
.hp-ghost {
  position: absolute; top: 0; left: 0; height: 100%; width: 100%;
  background: rgba(239, 68, 68, 0.75);
  border-radius: 7px;
  transition: width 700ms 250ms cubic-bezier(.2,0,0,1);
  z-index: 1;
}
progress { position: relative; width: 100%; height: 14px; margin: 0; border: none; border-radius: 7px; appearance: none; -webkit-appearance: none; background: transparent; z-index: 2; }
progress::-webkit-progress-bar { background: transparent; border-radius: 7px; overflow: hidden; }
.hero-meter  progress::-webkit-progress-value { background: linear-gradient(90deg, var(--cyan-dim), var(--cyan)); border-radius: 7px; transition: width .4s ease; }
.enemy-meter progress::-webkit-progress-value { background: linear-gradient(90deg, var(--violet-dim), var(--violet)); border-radius: 7px; transition: width .4s ease; }
progress::-moz-progress-bar { border-radius: 7px; }
.hero-meter  progress::-moz-progress-bar { background: linear-gradient(90deg, var(--cyan-dim), var(--cyan)); }
.enemy-meter progress::-moz-progress-bar { background: linear-gradient(90deg, var(--violet-dim), var(--violet)); }

.hero-meter.ef-low-hp {
  border-color: var(--red);
  animation: ef-pulse-border 1.5s infinite ease-in-out;
}
.hero-meter.ef-low-hp .meter-line strong::after {
  content: " ⚠";
  color: var(--red);
  font-size: 0.85rem;
}

.meter-stats { display: flex; justify-content: space-between; gap: 8px; font-size: .78rem; color: var(--muted); }
.meter-stats b { color: var(--amber); font-weight: 700; }

/* ─── Battle: Arena stage ─── */
.battle-stage {
  position: relative; min-height: 300px; padding: 24px;
  background:
    radial-gradient(ellipse 50% 80% at 25% 60%, rgba(34,211,238,.06) 0%, transparent 70%),
    radial-gradient(ellipse 50% 80% at 75% 60%, rgba(139,92,246,.06) 0%, transparent 70%),
    radial-gradient(circle at center, #101830 0%, var(--bg-void) 100%);
  border: 1px solid var(--line); border-radius: 16px;
  display: grid; grid-template-columns: 1fr minmax(200px,1.3fr) 1fr;
  align-items: center; gap: 16px; overflow: hidden;
}
.battle-stage::after {
  content: ""; position: absolute; bottom: 44px; left: 10%; right: 10%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(100,140,200,.15), transparent);
  pointer-events: none;
}

/* ─── Stage Scene & Depth Scaffold ─── */
.ef-scene {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  border-radius: 16px;
}

.ef-scene-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  transition: transform 360ms cubic-bezier(.2, .7, .3, 1), opacity 500ms ease;
  will-change: transform;
}

/* Parallax factors: sky .05, far .2, mid .5, ground .8, motes 1.1, fore 1.6 */
.ef-layer-sky    { transform: translate3d(calc(var(--ef-par-x, 0px) * 0.05), 0, 0); }
.ef-layer-far    { transform: translate3d(calc(var(--ef-par-x, 0px) * 0.20), 0, 0); }
.ef-layer-mid    { transform: translate3d(calc(var(--ef-par-x, 0px) * 0.50), 0, 0); }
.ef-layer-ground { transform: translate3d(calc(var(--ef-par-x, 0px) * 0.80), 0, 0); }
.ef-layer-motes  { transform: translate3d(calc(var(--ef-par-x, 0px) * 1.10), 0, 0); }
.ef-layer-fore   { transform: translate3d(calc(var(--ef-par-x, 0px) * 1.60), 0, 0); }

/* ─── Act I: The Resonant Hall (Default / resonant_hall) ─── */
.ef-layer-sky {
  background:
    radial-gradient(ellipse 80% 50% at 50% 10%, rgba(34, 211, 238, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 20%, rgba(139, 92, 246, 0.08) 0%, transparent 60%);
}
.ef-layer-far {
  background:
    repeating-linear-gradient(90deg, transparent, transparent 15%, rgba(14, 79, 95, 0.12) 15%, rgba(14, 79, 95, 0.12) 17%, transparent 17%, transparent 35%);
  mask-image: linear-gradient(180deg, transparent 20%, black 70%, transparent 95%);
  -webkit-mask-image: linear-gradient(180deg, transparent 20%, black 70%, transparent 95%);
}
.ef-layer-mid {
  background:
    repeating-linear-gradient(90deg, transparent, transparent 24%, rgba(8, 145, 178, 0.14) 24%, rgba(8, 145, 178, 0.14) 27%, transparent 27%, transparent 50%);
  mask-image: linear-gradient(180deg, transparent 35%, black 80%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 35%, black 80%, transparent 100%);
}
.ef-layer-ground {
  background-image:
    radial-gradient(circle at 50% 100%, rgba(34, 211, 238, 0.18) 0%, transparent 65%),
    radial-gradient(rgba(34, 211, 238, 0.22) 1.5px, transparent 1.5px);
  background-size: 100% 100%, 28px 28px;
  background-position: center bottom;
  mask-image: linear-gradient(180deg, transparent 40%, black 85%);
  -webkit-mask-image: linear-gradient(180deg, transparent 40%, black 85%);
}
.ef-layer-motes {
  background-image:
    radial-gradient(2px 2px at 15% 25%, rgba(34, 211, 238, 0.7), transparent),
    radial-gradient(2px 2px at 82% 35%, rgba(167, 139, 250, 0.6), transparent),
    radial-gradient(3px 3px at 48% 60%, rgba(34, 211, 238, 0.5), transparent),
    radial-gradient(2px 2px at 30% 75%, rgba(34, 211, 238, 0.4), transparent),
    radial-gradient(2.5px 2.5px at 70% 80%, rgba(167, 139, 250, 0.5), transparent);
}
.ef-layer-fore {
  background:
    linear-gradient(90deg, rgba(5, 8, 16, 0.5) 0%, transparent 12%, transparent 88%, rgba(5, 8, 16, 0.5) 100%),
    linear-gradient(180deg, transparent 82%, rgba(5, 8, 16, 0.4) 100%);
}

/* ─── Act II: The Cinder Forge (cinder_forge) ─── */
#echo-forge-root[data-stage="cinder_forge"] .ef-layer-sky {
  background:
    radial-gradient(ellipse 85% 55% at 50% 10%, rgba(249, 115, 22, 0.16) 0%, transparent 70%),
    radial-gradient(ellipse 70% 45% at 20% 25%, rgba(239, 68, 68, 0.12) 0%, transparent 65%);
}
#echo-forge-root[data-stage="cinder_forge"] .ef-layer-far {
  background:
    repeating-linear-gradient(90deg, transparent, transparent 12%, rgba(180, 83, 9, 0.14) 12%, rgba(180, 83, 9, 0.14) 15%, transparent 15%, transparent 32%);
  mask-image: linear-gradient(180deg, transparent 15%, black 65%, transparent 95%);
  -webkit-mask-image: linear-gradient(180deg, transparent 15%, black 65%, transparent 95%);
}
#echo-forge-root[data-stage="cinder_forge"] .ef-layer-mid {
  background:
    repeating-linear-gradient(90deg, transparent, transparent 20%, rgba(194, 65, 12, 0.18) 20%, rgba(194, 65, 12, 0.18) 24%, transparent 24%, transparent 44%);
  mask-image: linear-gradient(180deg, transparent 30%, black 75%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 30%, black 75%, transparent 100%);
}
#echo-forge-root[data-stage="cinder_forge"] .ef-layer-ground {
  background-image:
    radial-gradient(circle at 50% 100%, rgba(249, 115, 22, 0.24) 0%, transparent 65%),
    radial-gradient(rgba(251, 191, 36, 0.25) 1.5px, transparent 1.5px);
  background-size: 100% 100%, 24px 24px;
  mask-image: linear-gradient(180deg, transparent 40%, black 85%);
  -webkit-mask-image: linear-gradient(180deg, transparent 40%, black 85%);
}
#echo-forge-root[data-stage="cinder_forge"] .ef-layer-motes {
  background-image:
    radial-gradient(2px 2px at 20% 30%, rgba(251, 191, 36, 0.8), transparent),
    radial-gradient(2px 2px at 78% 22%, rgba(249, 115, 22, 0.7), transparent),
    radial-gradient(3px 3px at 52% 55%, rgba(239, 68, 68, 0.6), transparent),
    radial-gradient(2px 2px at 35% 82%, rgba(245, 158, 11, 0.5), transparent),
    radial-gradient(2.5px 2.5px at 85% 72%, rgba(251, 191, 36, 0.6), transparent);
}
#echo-forge-root[data-stage="cinder_forge"] .ef-layer-fore {
  background:
    linear-gradient(90deg, rgba(20, 10, 5, 0.55) 0%, transparent 12%, transparent 88%, rgba(20, 10, 5, 0.55) 100%),
    linear-gradient(180deg, transparent 82%, rgba(25, 12, 6, 0.45) 100%);
}

/* ─── Act III: The Void Beneath (void_beneath) ─── */
#echo-forge-root[data-stage="void_beneath"] .ef-layer-sky {
  background:
    radial-gradient(ellipse 80% 50% at 50% 10%, rgba(16, 185, 129, 0.14) 0%, transparent 70%),
    radial-gradient(ellipse 65% 45% at 75% 25%, rgba(109, 40, 217, 0.14) 0%, transparent 65%);
}
#echo-forge-root[data-stage="void_beneath"] .ef-layer-far {
  background:
    repeating-linear-gradient(90deg, transparent, transparent 18%, rgba(16, 185, 129, 0.1) 18%, rgba(16, 185, 129, 0.1) 21%, transparent 21%, transparent 38%);
  mask-image: linear-gradient(180deg, transparent 20%, black 70%, transparent 95%);
  -webkit-mask-image: linear-gradient(180deg, transparent 20%, black 70%, transparent 95%);
}
#echo-forge-root[data-stage="void_beneath"] .ef-layer-mid {
  background:
    repeating-linear-gradient(90deg, transparent, transparent 22%, rgba(76, 29, 149, 0.18) 22%, rgba(76, 29, 149, 0.18) 26%, transparent 26%, transparent 48%);
  mask-image: linear-gradient(180deg, transparent 32%, black 78%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 32%, black 78%, transparent 100%);
}
#echo-forge-root[data-stage="void_beneath"] .ef-layer-ground {
  background-image:
    radial-gradient(circle at 50% 100%, rgba(16, 185, 129, 0.22) 0%, transparent 65%),
    radial-gradient(rgba(52, 211, 153, 0.24) 1.5px, transparent 1.5px);
  background-size: 100% 100%, 30px 30px;
  mask-image: linear-gradient(180deg, transparent 40%, black 85%);
  -webkit-mask-image: linear-gradient(180deg, transparent 40%, black 85%);
}
#echo-forge-root[data-stage="void_beneath"] .ef-layer-motes {
  background-image:
    radial-gradient(2px 2px at 18% 35%, rgba(52, 211, 153, 0.8), transparent),
    radial-gradient(2px 2px at 75% 28%, rgba(167, 139, 250, 0.7), transparent),
    radial-gradient(3px 3px at 45% 62%, rgba(16, 185, 129, 0.6), transparent),
    radial-gradient(2px 2px at 28% 80%, rgba(52, 211, 153, 0.5), transparent),
    radial-gradient(2.5px 2.5px at 82% 68%, rgba(167, 139, 250, 0.6), transparent);
}
#echo-forge-root[data-stage="void_beneath"] .ef-layer-fore {
  background:
    linear-gradient(90deg, rgba(3, 7, 18, 0.6) 0%, transparent 12%, transparent 88%, rgba(3, 7, 18, 0.6) 100%),
    linear-gradient(180deg, transparent 82%, rgba(3, 7, 18, 0.5) 100%);
}

/* ─── Node Modulation (Rest & Cache) ─── */
#echo-forge-root[data-node-type="rest"] .ef-layer-sky {
  opacity: 0.75;
  filter: brightness(0.9) saturate(0.85);
}
#echo-forge-root[data-node-type="cache"] .ef-layer-motes {
  filter: drop-shadow(0 0 4px var(--amber-glow));
}

/* ─── Act Title Card ─── */
.ef-act-title-card {
  position: absolute;
  top: 36%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 15;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  pointer-events: none;
  text-align: center;
  background: rgba(5, 8, 16, 0.88);
  border: 1px solid var(--line-bright);
  box-shadow: 0 0 32px rgba(0, 0, 0, 0.85), 0 0 24px var(--cyan-glow);
  border-radius: 14px;
  padding: 16px 28px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.ef-act-badge {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  text-shadow: 0 0 8px var(--amber-glow);
}

.ef-act-title {
  margin: 0;
  font-size: clamp(1.2rem, 3.5vw, 1.8rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-bright);
  background: linear-gradient(135deg, #fff 30%, var(--cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

#echo-forge-root[data-stage="cinder_forge"] .ef-act-title {
  background: linear-gradient(135deg, #fff 30%, var(--amber) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

#echo-forge-root[data-stage="void_beneath"] .ef-act-title {
  background: linear-gradient(135deg, #fff 30%, var(--green) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.ef-title-enter {
  animation: ef-title-fade-in 400ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.ef-title-leave {
  animation: ef-title-fade-out 400ms ease-out forwards;
}

@keyframes ef-title-fade-in {
  0% {
    opacity: 0;
    transform: translate(-50%, -42%) scale(0.92);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

@keyframes ef-title-fade-out {
  0% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -56%) scale(1.05);
  }
}

/* ─── Characters ─── */
.fighter { position: relative; z-index: 2; text-align: center; }
.fighter-mark {
  position: relative; width: 140px; height: 140px; margin: 0 auto 6px;
  display: grid; grid-template-areas: "stack"; place-items: center;
}
.fighter-mark img, .fighter-mark .css-silhouette { grid-area: stack; }
.fighter-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  z-index: 2;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
}
.fighter.hero .fighter-mark img {
  filter: drop-shadow(0 0 10px rgba(34, 211, 238, 0.4));
}
#echo-forge-root[data-warden="sentinel"] .fighter.enemy .fighter-mark img {
  filter: drop-shadow(0 0 12px rgba(167, 139, 250, 0.5));
}
#echo-forge-root[data-warden="cinder"] .fighter.enemy .fighter-mark img {
  filter: hue-rotate(85deg) saturate(1.45) drop-shadow(0 0 14px rgba(244, 63, 94, 0.6));
}
#echo-forge-root[data-warden="void"] .fighter.enemy .fighter-mark img {
  filter: hue-rotate(240deg) saturate(1.35) drop-shadow(0 0 14px rgba(16, 185, 129, 0.6));
}
.fighter-mark img:not([hidden]) ~ .css-silhouette { display: none; }
.fighter strong { display: block; font-size: .9rem; font-weight: 700; margin-top: 2px; }
.hero > strong  { color: var(--cyan); }
.enemy > strong { color: var(--violet); }

/* Hero silhouette — humanoid warrior with head + body + ground glow */
.hero .css-silhouette {
  width: 52px; height: 78px; position: relative;
  background: linear-gradient(180deg, var(--cyan-dim), #0a2530);
  border: 2px solid var(--cyan); border-radius: 50% 50% 32% 32%;
  box-shadow: 0 0 24px var(--cyan-glow), inset 0 -12px 20px rgba(0,0,0,.4);
}
.hero .css-silhouette::before {
  content: ""; position: absolute; top: -26px; left: 50%; transform: translateX(-50%);
  width: 28px; height: 28px;
  background: radial-gradient(circle, var(--cyan) 30%, var(--cyan-dim));
  border-radius: 50%; box-shadow: 0 0 18px var(--cyan-glow);
}
.hero .css-silhouette::after {
  content: ""; position: absolute; bottom: -8px; left: 50%; transform: translateX(-50%);
  width: 54px; height: 10px;
  background: radial-gradient(ellipse, var(--cyan-glow), transparent); border-radius: 50%;
}

/* Enemy silhouette — armored helm with amber eye + menacing glow */
.enemy .css-silhouette {
  width: 60px; height: 82px; position: relative;
  background: linear-gradient(180deg, var(--violet-dim), #150a30);
  border: 2px solid var(--violet);
  border-radius: 35% 35% 25% 25% / 25% 25% 45% 45%;
  box-shadow: 0 0 24px var(--violet-glow), inset 0 -8px 18px rgba(0,0,0,.5);
}
.enemy .css-silhouette::before {
  content: ""; position: absolute; top: 32%; left: 50%; transform: translate(-50%,-50%) rotate(45deg);
  width: 13px; height: 13px;
  background: var(--amber); box-shadow: 0 0 12px var(--amber-glow), 0 0 24px rgba(251,191,36,.15);
}
.enemy .css-silhouette::after {
  content: ""; position: absolute; bottom: -8px; left: 50%; transform: translateX(-50%);
  width: 58px; height: 10px;
  background: radial-gradient(ellipse, var(--violet-glow), transparent); border-radius: 50%;
}

/* Warden Palettes */
#echo-forge-root[data-warden="sentinel"] {
  --violet: #a78bfa;
  --violet-dim: #4c1d95;
  --violet-glow: rgba(167, 139, 250, 0.25);
}
#echo-forge-root[data-warden="cinder"] {
  --violet: #f43f5e;
  --violet-dim: #881337;
  --violet-glow: rgba(244, 63, 94, 0.35);
  --amber: #fb923c;
  --amber-glow: rgba(251, 146, 60, 0.35);
}
#echo-forge-root[data-warden="void"] {
  --violet: #10b981;
  --violet-dim: #064e3b;
  --violet-glow: rgba(16, 185, 129, 0.35);
  --amber: #34d399;
  --amber-glow: rgba(52, 211, 153, 0.35);
}

/* Character floating idle */
.hero  .fighter-mark { animation: float-hero  3s ease-in-out infinite; }
.enemy .fighter-mark { animation: float-enemy 3.6s ease-in-out infinite; }

/* ─── Visual overlay layer ─── */
.echo-visual-layer {
  position: absolute; inset: 0; pointer-events: none; z-index: 1;
  display: grid; place-items: center; opacity: .9;
}
.echo-visual-layer [data-visual="effect"] {
  width: min(240px, 60vw);
  height: min(240px, 60vw);
  object-fit: contain;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
}
.echo-visual-layer.echo-visual-fallback::after,
.echo-visual-layer.enemy-telegraph::after,
.echo-visual-layer.resonance-ready::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 140px; height: 140px; transform: translate(-50%,-50%);
  border: 2px solid var(--cyan); border-radius: 50%; opacity: .25;
}
.echo-visual-layer.enemy-telegraph::after {
  border-color: var(--violet); box-shadow: 0 0 30px var(--violet-glow);
  animation: pulse-ring 1.5s ease-in-out infinite;
}
.echo-visual-layer.resonance-ready::after {
  border-color: var(--amber); box-shadow: 0 0 30px var(--amber-glow);
  animation: pulse-ring 1.2s ease-in-out infinite;
}

/* ─── Challenge text ─── */
.challenge { position: relative; z-index: 3; text-align: center; padding: 0 8px; }
#challenge-text {
  font-size: clamp(1.3rem,4.5vw,2.2rem); font-weight: 800;
  color: var(--ink-bright); margin-bottom: 4px;
  text-shadow: 0 0 30px rgba(255,255,255,.08);
}
#challenge-support { color: var(--muted); font-size: .86rem; }

/* ─── Controls ─── */
.controls { padding-top: 14px; }
.section-label {
  font-weight: 800; font-size: .82rem; text-transform: uppercase; letter-spacing: .08em;
  margin: 14px 0 10px; color: var(--cyan);
}
#defend-controls .section-label { color: var(--violet); }

/* ─── Ability cards ─── */
.action-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: stretch; }
.ability-card {
  display: grid; gap: 3px; text-align: center; justify-items: center;
  min-width: 150px; flex: 1; padding: 14px 12px 12px;
  background: linear-gradient(180deg, var(--bg-card-hover), var(--bg-card));
  border: 1px solid var(--line-bright); border-radius: 12px;
  position: relative; overflow: hidden;
}
.ability-card::before {
  content: ""; position: absolute; inset: -1px; border-radius: 12px;
  background: linear-gradient(180deg, rgba(34,211,238,.12), transparent 50%);
  pointer-events: none; opacity: 0; transition: opacity .2s;
}
.ability-card:hover:not(:disabled)::before { opacity: 1; }
.ability-card:hover:not(:disabled) { border-color: var(--cyan); box-shadow: 0 4px 24px var(--cyan-glow); transform: translateY(-1px); }
.ability-card:active:not(:disabled) { transform: translateY(0); }

.card-icon { font-size: 1.4rem; line-height: 1; }
.action-title { font-weight: 700; font-size: .92rem; color: var(--ink-bright); }
.action-meta { font-size: .75rem; font-weight: 600; color: var(--cyan); letter-spacing: .02em; }
.action-description { color: var(--muted); font-size: .85rem; }

/* Defend cards — purple accent */
.defend-card::before { background: linear-gradient(180deg, rgba(139,92,246,.12), transparent 50%); }
.defend-card:hover:not(:disabled) { border-color: var(--violet); box-shadow: 0 4px 24px var(--violet-glow); }
.defend-card .action-meta { color: var(--violet); }
.parry-card .action-meta { color: var(--amber); }

/* Burst toggle */
.burst-choice {
  min-height: 44px; display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 12px; color: var(--ink); font-size: .88rem; font-weight: 600;
  border: 1px solid var(--line); border-radius: 10px; background: var(--bg-card);
}
.burst-choice input { width: 22px; height: 22px; margin: 0; accent-color: var(--amber); }

/* ─── Recording UI ─── */
.record-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

/* ─── Block options ─── */
.option-row { display: flex; flex-wrap: wrap; gap: 10px; }
.option-row button { flex: 1; min-width: 110px; font-weight: 600; font-size: .95rem; padding: 12px 14px; }

/* ─── Parry countdown ─── */
#parry-countdown { min-height: 1.5em; font-weight: 700; color: var(--amber); font-variant-numeric: tabular-nums; font-size: .92rem; }

/* ─── Feedback panel ─── */
#feedback {
  margin-top: 16px; padding: 12px 16px; min-height: 46px;
  background: var(--bg-card); border: 1px solid var(--line);
  border-left: 4px solid var(--line-bright); border-radius: 0 12px 12px 0;
}
#feedback[data-tone="success"] { border-left-color: var(--green); background: rgba(52,211,153,.05); }
#feedback[data-tone="warning"] { border-left-color: var(--amber); background: rgba(251,191,36,.04); }
#feedback h3 { font-size: .78rem; color: var(--muted); margin-bottom: 4px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
#feedback-text { margin: 0; line-height: 1.6; color: var(--ink); font-size: .9rem; }

/* ─── Event log ─── */
#event-log {
  margin-top: 14px; padding: 8px 14px 8px 30px;
  max-height: 72px; overflow-y: auto;
  background: rgba(0,0,0,.25); border: 1px solid rgba(26,39,68,.5); border-radius: 8px;
  color: #5a6d94; font-size: .75rem;
}
#event-log li { padding: 1px 0; }
#event-log:empty { display: none; }

/* ─── Dev tools (collapsed by default) ─── */
.dev-tools { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 10px; }
.dev-toggle {
  font-size: .75rem; color: #3d4f6f; cursor: pointer; user-select: none; padding: 4px 0;
  list-style: none;
}
.dev-toggle::-webkit-details-marker { display: none; }
.dev-toggle::before { content: "▸ "; }
details[open] .dev-toggle::before { content: "▾ "; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.subtle-btn {
  font-size: .75rem; padding: 6px 10px; min-height: 34px;
  background: transparent; border-color: var(--line); color: #3d4f6f;
}
.subtle-btn:hover:not(:disabled) { color: var(--muted); border-color: var(--line-bright); box-shadow: none; }

.ef-kbd-hint {
  display: inline-block;
  font-size: 0.65rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-weight: 700;
  padding: 1px 5px;
  margin-left: 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--muted);
  vertical-align: middle;
  line-height: 1.2;
}

/* ─── Reward screen ─── */
#reward-select {
  margin-top: 24px; padding: 28px;
  background: var(--bg-card); border: 1px solid var(--line); border-radius: 16px;
  box-shadow: 0 0 40px rgba(0,0,0,.3); text-align: center;
}
#reward-select h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: 6px; color: var(--amber); }
#reward-prompt { color: var(--muted); margin-bottom: 20px; font-size: .92rem; }
.reward-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 16px; }
.reward-card {
  display: flex; flex-direction: column; align-items: center; justify-content: space-between;
  padding: 16px; background: var(--bg-panel); border: 1px solid var(--line); border-radius: 12px;
  gap: 12px; text-align: center;
}
.reward-card strong { font-size: 1.05rem; color: var(--ink-bright); }
.reward-card p { font-size: .85rem; color: var(--muted); margin: 0; }
.reward-card button { min-height: 44px; min-width: 44px; width: 100%; }

/* ─── Summary screen ─── */
#summary {
  margin-top: 24px; padding: 28px;
  background: var(--bg-card); border: 1px solid var(--line); border-radius: 16px;
  box-shadow: 0 0 40px rgba(0,0,0,.3);
}
#summary h2 { font-size: 1.5rem; font-weight: 800; text-align: center; margin-bottom: 8px; }
#summary-outcome { text-align: center; color: var(--muted); margin-bottom: 20px; font-size: .92rem; }
#summary dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; margin-bottom: 24px; }
#summary dt { color: var(--muted); font-size: .88rem; }
#summary dd { margin: 0; font-weight: 600; }
.summary-actions { justify-content: center; gap: 12px; }

/* ─── Resume & Vocab Capture ─── */
.resume-btn {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--emerald);
  color: var(--emerald);
  font-weight: 700;
}
.resume-btn:hover:not(:disabled) {
  background: rgba(16, 185, 129, 0.2);
  border-color: var(--emerald);
  color: #34d399;
}
.vocab-capture-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin: 16px 0;
  padding: 12px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.vocab-capture-status {
  font-size: .85rem;
  color: var(--emerald);
}

/* ─── Utility ─── */
[hidden] { display: none !important; }

/* ─── Animations ─── */
@keyframes float-hero  { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes float-enemy { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-4px); } }
@keyframes pulse-ring  { 0%,100% { opacity: .25; transform: translate(-50%,-50%) scale(1); } 50% { opacity: .5; transform: translate(-50%,-50%) scale(1.08); } }

/* ─── Juice & Combat FX ─── */
.ef-dmg {
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translate(-50%, 0);
  font-family: monospace, sans-serif;
  font-weight: 900;
  font-size: 1.6rem;
  color: #fff;
  pointer-events: none;
  z-index: 10;
  animation: ef-float-up 900ms cubic-bezier(0.1, 0.8, 0.3, 1) forwards;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8);
}
.ef-dmg--normal { color: #f3f4f6; text-shadow: 0 0 10px rgba(255, 255, 255, 0.5); }
.ef-dmg--strong { color: #fbbf24; font-size: 1.85rem; text-shadow: 0 0 12px rgba(251, 191, 36, 0.7); }
.ef-dmg--crit   { color: #f87171; font-size: 2.1rem; text-shadow: 0 0 16px rgba(239, 68, 68, 0.9); }
.ef-dmg--burst  { color: #c084fc; font-size: 2.4rem; text-shadow: 0 0 20px rgba(192, 132, 252, 0.9); }

.ef-hit-flash {
  filter: brightness(3) saturate(0);
}
.ef-recoil {
  animation: ef-recoil-anim 280ms ease-out forwards;
}
.fighter.enemy.ef-recoil {
  animation: ef-enemy-recoil-anim 280ms ease-out forwards;
}

.ef-windup {
  transform: translateX(-16px) scale(0.95);
  transition: transform 200ms ease-in;
}
.ef-lunge {
  transform: translateX(36px) scale(1.05);
  transition: transform 260ms cubic-bezier(0.2, 0.8, 0.4, 1.2);
}

.battle-stage.ef-shake {
  animation: ef-shake-stage 320ms ease-in-out forwards;
}

@keyframes ef-pulse-border {
  0%, 100% { box-shadow: 0 0 5px rgba(239, 68, 68, 0.2); }
  50% { box-shadow: 0 0 16px rgba(239, 68, 68, 0.6); }
}

@keyframes ef-float-up {
  0% { opacity: 0; transform: translate(-50%, 10px) scale(0.6); }
  20% { opacity: 1; transform: translate(-50%, -15px) scale(1.15); }
  40% { transform: translate(-50%, -25px) scale(1.0); }
  100% { opacity: 0; transform: translate(-50%, -60px) scale(0.9); }
}

@keyframes ef-recoil-anim {
  0% { transform: translateX(0) scale(1); }
  25% { transform: translateX(-8px) scale(0.94, 1.06); }
  60% { transform: translateX(4px) scale(1.03, 0.97); }
  100% { transform: translateX(0) scale(1); }
}

@keyframes ef-enemy-recoil-anim {
  0% { transform: translateX(0) scale(1); }
  25% { transform: translateX(8px) scale(0.94, 1.06); }
  60% { transform: translateX(-4px) scale(1.03, 0.97); }
  100% { transform: translateX(0) scale(1); }
}

@keyframes ef-shake-stage {
  0%, 100% { transform: translate(0, 0); }
  20% { transform: translate(-4px, 2px); }
  40% { transform: translate(4px, -3px); }
  60% { transform: translate(-3px, 1px); }
  80% { transform: translate(2px, -1px); }
}

/* ─── Route map ─── */
#map-select {
  max-width: 760px; margin: 24px auto; padding: 24px 20px 20px;
  background: var(--bg-card); border: 1px solid var(--line); border-radius: 16px;
}
#map-select h2 { margin: 0 0 4px; font-size: 1.15rem; color: var(--ink-bright); }

.ef-map-header { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.ef-map-numeral {
  font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
  color: var(--violet); padding: 3px 8px; border: 1px solid var(--violet-dim); border-radius: 999px;
}
.ef-map-title { font-size: 1rem; font-weight: 700; color: var(--ink); }
.ef-map-pips { display: flex; gap: 5px; margin-left: auto; }
.ef-pip { width: 7px; height: 7px; border-radius: 50%; background: var(--line-bright); }
.ef-pip--done { background: var(--violet); box-shadow: 0 0 6px var(--violet-glow); }

.ef-map-board { position: relative; display: flex; flex-direction: column; gap: 18px; }
.ef-map-links { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 0; }
.ef-link { fill: none; stroke: var(--line-bright); stroke-width: 2; opacity: .5; }
.ef-link--live { stroke: var(--violet); stroke-width: 2.5; opacity: 1; }

.ef-map-floor { position: relative; z-index: 1; display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

.ef-map-node {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  min-width: 96px; min-height: 76px; padding: 10px 12px;
  background: var(--bg-void); border: 1px solid var(--line); border-radius: 12px;
  color: var(--muted); cursor: pointer; text-align: center;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.ef-node-glyph { font-size: 1.25rem; line-height: 1.1; }
.ef-node-kind { font-size: .62rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.ef-node-name { font-size: .74rem; color: var(--muted); }

.ef-map-node[data-state="available"] {
  border-color: var(--violet); color: var(--ink-bright);
  background: linear-gradient(180deg, var(--bg-card-hover), var(--bg-card));
  box-shadow: 0 0 0 1px var(--violet-dim), 0 0 18px var(--violet-glow);
}
.ef-map-node[data-state="available"]:hover { transform: translateY(-3px); }
.ef-map-node[data-state="available"] .ef-node-name { color: var(--ink); }
.ef-map-node[data-state="current"] {
  border-color: var(--cyan); color: var(--cyan);
  box-shadow: 0 0 0 1px var(--cyan-dim), 0 0 16px var(--cyan-glow);
}
.ef-map-node[data-state="visited"] { opacity: .58; border-style: dashed; }
.ef-map-node[data-state="locked"] { opacity: .38; }
.ef-map-node:disabled { cursor: default; }

/* Node type is legible without relying on colour. */
.ef-map-node[data-node-type="boss"] .ef-node-kind { color: var(--amber); }
.ef-map-node[data-node-type="rest"] .ef-node-kind { color: var(--green); }
.ef-map-node[data-node-type="cache"] .ef-node-kind { color: var(--amber); }

/* The act boss is what the whole map points at, so it stays legible even
   while it is still out of reach. */
.ef-map-node[data-node-type="boss"] {
  min-width: 132px; padding: 12px 16px;
  border-color: var(--violet-dim);
  background: linear-gradient(180deg, rgba(0,0,0,.35), var(--bg-void));
}
.ef-map-node[data-node-type="boss"][data-state="locked"] { opacity: .78; }
.ef-map-node[data-node-type="boss"] .ef-node-glyph { font-size: 1.5rem; color: var(--amber); }
.ef-map-node[data-node-type="boss"] .ef-node-name { color: var(--ink); font-weight: 600; }
.ef-map-node[data-node-type="boss"][data-state="available"] {
  border-color: var(--amber);
  box-shadow: 0 0 0 1px var(--amber), 0 0 24px var(--amber-glow);
}

.ef-map-note { margin: 16px 0 0; font-size: .82rem; color: var(--muted); text-align: center; }

/* ─── Responsive ─── */
@media (max-width:700px) {
  .ef-map-node { min-width: 84px; min-height: 72px; padding: 8px 10px; }
  .ef-map-floor { gap: 8px; }
  #map-select { padding: 20px 14px 16px; }
  main { padding: 12px 16px 32px; }
  header { flex-wrap: wrap; }
  #setup { margin: 24px auto; padding: 24px 20px; }
  .setup-row > * { width: 100%; }
  .battle-stage { grid-template-columns: 1fr 1fr; padding: 16px; min-height: 240px; }
  .challenge { grid-column: 1/-1; grid-row: 1; }
  .fighter-mark { width: 96px; height: 96px; }
  .hero .css-silhouette  { width: 40px; height: 60px; }
  .enemy .css-silhouette { width: 46px; height: 64px; }
  .hero .css-silhouette::before { width: 22px; height: 22px; top: -20px; }
  .meter-grid { grid-template-columns: 1fr; gap: 8px; }
  .ability-card { min-width: 130px; }
  #summary { padding: 20px; }
  #summary dl { grid-template-columns: 1fr; }
  .summary-actions { flex-direction: column; }
}

@media (prefers-reduced-motion:reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
  .ef-scene-layer { transform: none !important; }
}