.app-shell {
  color-scheme: dark;
  --bg:#05070d;
  --panel:rgba(17,24,39,.56);
  --line:rgba(255,255,255,.14);
  --text:#f4f7fb;
  --muted:#a7b1c2;
  --danger:rgba(123,34,51,.42);
  --shadow:0 24px 70px rgba(0,0,0,.38);
  --radius:22px;
}

* { box-sizing:border-box; }
body.night-chain-page-body { overflow-x:hidden; }
.night-chain-site-main { padding-top:1.25rem; padding-bottom:1.5rem; }
.app-shell { color:var(--text); font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
.app-shell button { font:inherit; }
.app-shell h1,.app-shell h2,.app-shell h3,.app-shell p { margin:0; }
[hidden] { display:none !important; }

.app-shell { width:100%; margin:0 auto; display:grid; gap:14px; }
.glass {
  background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.032));
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.035);
  border-radius:var(--radius);
}

.topbar { padding:18px; display:flex; justify-content:space-between; align-items:center; gap:18px; }
.eyebrow { font-size:.70rem; letter-spacing:.18em; color:var(--muted); font-weight:800; }
.app-shell h1 { margin-top:4px; font-size:clamp(2rem,6vw,3.2rem); letter-spacing:-.045em; }
.version { color:var(--muted); font-size:.74rem; margin-top:3px; }
.score-cluster { display:flex; gap:10px; flex-wrap:wrap; justify-content:flex-end; }
.stat { min-width:86px; padding:10px 12px; border:1px solid rgba(255,255,255,.10); border-radius:16px; background:rgba(0,0,0,.17); }
.stat-label { display:block; color:var(--muted); font-size:.70rem; margin-bottom:3px; }
.stat strong { font-size:1.1rem; }

.run-setup { padding:20px; display:grid; grid-template-columns:1.25fr 1fr; gap:16px 22px; align-items:center; }
.setup-copy h2 { margin-top:5px; font-size:1.35rem; }
.setup-copy p { margin-top:7px; color:var(--muted); line-height:1.45; }
.mode-toggle-row {
  display:grid;
  grid-template-columns:1fr auto;
  grid-template-areas:"text switch";
  gap:14px;
  align-items:center;
  padding:15px;
  border:1px solid rgba(255,255,255,.12);
  border-radius:17px;
  background:rgba(0,0,0,.16);
  cursor:pointer;
}
.mode-toggle-text { grid-area:text; display:grid; gap:3px; }
.mode-toggle-text small { color:var(--muted); }
.mode-toggle-row input { position:absolute; opacity:0; pointer-events:none; }
.switch { grid-area:switch; width:52px; height:30px; padding:3px; border-radius:999px; background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.16); transition:background 160ms ease; }
.switch span { display:block; width:22px; height:22px; border-radius:50%; background:#f4f7fb; transform:translateX(0); transition:transform 160ms ease; }
.mode-toggle-row input:checked + .switch { background:rgba(74,130,207,.55); }
.mode-toggle-row input:checked + .switch span { transform:translateX(22px); }
.setup-note { color:var(--muted); font-size:.83rem; line-height:1.45; padding:0 2px; }
.setup-start { min-height:50px; border:1px solid rgba(255,255,255,.14); border-radius:15px; font-weight:900; cursor:pointer; }

.status { padding:14px 18px; display:flex; justify-content:space-between; align-items:center; gap:18px; }
.status-message { min-width:0; }
.status-title { font-weight:850; margin-bottom:3px; }
.status-copy { color:var(--muted); line-height:1.4; }
.mini-stats { display:flex; gap:14px; flex-wrap:wrap; justify-content:flex-end; }
.mini-stats div { min-width:54px; text-align:right; }
.mini-stats span { display:block; font-size:.64rem; color:var(--muted); text-transform:uppercase; letter-spacing:.05em; }
.mini-stats strong { font-size:1.02rem; }

.play-area { padding:18px; }
.section-heading { display:flex; justify-content:space-between; align-items:end; gap:16px; margin-bottom:14px; }
.section-heading h2 { margin-top:5px; font-size:1.08rem; min-height:1.3em; overflow-wrap:anywhere; }
.chain-value { font-weight:900; font-size:1.18rem; white-space:nowrap; }

.hand { display:grid; grid-template-columns:repeat(7,minmax(64px,86px)); justify-content:center; gap:10px; min-height:126px; align-items:start; perspective:900px; }
.card {
  position:relative;
  width:100%;
  aspect-ratio:5 / 7;
  min-height:0;
  padding:8px 7px 7px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.17);
  background:radial-gradient(circle at 50% 42%,rgba(255,255,255,.055),transparent 48%),linear-gradient(160deg,rgba(255,255,255,.12),rgba(255,255,255,.032));
  color:#eef3fb;
  box-shadow:0 12px 28px rgba(0,0,0,.24),inset 0 1px 0 rgba(255,255,255,.055);
  cursor:pointer;
  transform:translateY(0);
  transition:transform 120ms ease,border-color 120ms ease,background 120ms ease,box-shadow 120ms ease;
  user-select:none;
  -webkit-tap-highlight-color:transparent;
  overflow:hidden;
  will-change:transform,opacity;
}
.card:hover,.card:focus-visible { transform:translateY(-3px); outline:none; border-color:rgba(255,255,255,.34); }
.card.selected { transform:translateY(-7px); border-color:rgba(255,255,255,.70); background:linear-gradient(160deg,rgba(255,255,255,.21),rgba(255,255,255,.07)); box-shadow:0 16px 34px rgba(0,0,0,.32),0 0 0 1px rgba(255,255,255,.18) inset; }
.card.red { color:#ff9ca8; }
.card-corner { position:absolute; top:7px; left:8px; display:flex; flex-direction:column; align-items:center; line-height:.92; z-index:2; }
.card-rank { font-size:1.15rem; font-weight:950; letter-spacing:-.04em; }
.card-corner-suit { font-size:.82rem; margin-top:2px; }
.card-center-suit { position:absolute; inset:0; display:grid; place-items:center; font-size:2rem; line-height:1; opacity:.92; pointer-events:none; }
.card-order { position:absolute; top:6px; right:6px; width:22px; height:22px; border-radius:999px; display:grid; place-items:center; font-size:.68rem; font-weight:950; color:#080b12; background:rgba(255,255,255,.93); opacity:0; transform:scale(.75); transition:opacity 120ms ease,transform 120ms ease; }
.card.selected .card-order { opacity:1; transform:scale(1); }
.card-name { position:absolute; left:7px; right:7px; bottom:7px; color:var(--muted); font-size:.55rem; text-align:center; letter-spacing:.05em; text-transform:uppercase; white-space:nowrap; }

.card.fly-in-left { animation:flyInLeft 420ms cubic-bezier(.17,.84,.32,1.2) both; }
.card.discard-resolve { animation:discardRight 280ms ease-in forwards; animation-delay:var(--stagger,0ms); pointer-events:none; }
.card.chain-resolve { animation:chainResolve 340ms cubic-bezier(.34,.05,.45,1) forwards; animation-delay:var(--stagger,0ms); pointer-events:none; }
@keyframes flyInLeft { from { opacity:0; transform:translateX(-110px) rotate(-7deg) translateY(8px); } 70% { opacity:1; transform:translateX(5px) rotate(1deg); } to { opacity:1; transform:translateX(0) rotate(0); } }
@keyframes discardRight { 0% { opacity:1; transform:translateY(-7px); } 25% { transform:translateY(-12px) rotate(2deg); } 100% { opacity:0; transform:translateX(145vw) rotate(16deg) translateY(-6px); } }
@keyframes chainResolve { 0% { opacity:1; transform:translateY(-7px) scale(1); filter:brightness(1); } 28% { transform:translateY(-15px) scale(1.07); filter:brightness(1.5); box-shadow:0 0 28px rgba(255,255,255,.35); } 52% { transform:translateY(-11px) scale(.99); } 100% { opacity:0; transform:translateX(120vw) translateY(-18px) rotate(11deg) scale(.92); } }

.controls { display:grid; grid-template-columns:1fr 1.15fr 1.15fr 1fr; gap:10px; margin-top:15px; }
.controls button { min-height:48px; border-radius:15px; border:1px solid rgba(255,255,255,.14); font-weight:850; cursor:pointer; }
.controls button:disabled { opacity:.35; cursor:not-allowed; }
.primary { background:rgba(255,255,255,.91); color:#080b12; }
.secondary { background:rgba(255,255,255,.055); color:var(--text); }
.danger { background:var(--danger); color:#ffd7dd; }

.rules { padding:15px 18px; }
.rules summary { cursor:pointer; font-weight:850; }
.rules p { margin-top:9px; color:var(--muted); line-height:1.48; }

@media (prefers-reduced-motion:reduce) {
  .card,.switch,.switch span { transition:none !important; }
  .card.fly-in-left,.card.discard-resolve,.card.chain-resolve { animation-duration:1ms !important; animation-delay:0ms !important; }
}

@media (max-width:720px) {
  .topbar { align-items:flex-start; flex-direction:column; }
  .score-cluster { width:100%; justify-content:stretch; }
  .stat { flex:1 1 0; min-width:0; }
  .run-setup { grid-template-columns:1fr; }
  .status { align-items:flex-start; flex-direction:column; }
  .mini-stats { width:100%; justify-content:space-between; }
  .mini-stats div { text-align:left; }
  .hand { grid-template-columns:repeat(4,minmax(58px,76px)); gap:8px; }
  .controls { grid-template-columns:1fr 1fr; }
}

@media (max-width:430px) {
  .play-area { padding:13px; }
  .hand { grid-template-columns:repeat(4,minmax(52px,68px)); gap:7px; }
  .card { border-radius:12px; padding:6px; }
  .card-rank { font-size:1rem; }
  .card-corner-suit { font-size:.72rem; }
  .card-center-suit { font-size:1.65rem; }
  .card-order { width:19px; height:19px; font-size:.60rem; }
  .card-name { font-size:.48rem; bottom:5px; }
  .section-heading { align-items:flex-start; }
}


/* ==========================================================================
   v0.7 — Quantum Acquisition
   ========================================================================== */

.run-setup .quantum-entry,
.run-setup .fusion-entry {
  grid-column:1 / -1;
  width:100%;
  box-sizing:border-box;
}

.quantum-entry {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:16px;
  border:1px solid rgba(126,160,255,.26);
  border-radius:18px;
  background:
    radial-gradient(circle at 88% 20%,rgba(116,84,255,.18),transparent 34%),
    linear-gradient(135deg,rgba(65,87,160,.16),rgba(14,20,36,.26));
}
.quantum-entry-copy { min-width:0; }
.quantum-entry h3 { margin:4px 0 5px; font-size:1.15rem; }
.quantum-entry p { color:var(--muted); line-height:1.4; }
.quantum-entry-meta { display:flex; gap:12px; flex-wrap:wrap; margin-top:9px; color:#cbd5e7; font-size:.76rem; }
.quantum-entry-meta span {
  padding:5px 8px;
  border:1px solid rgba(255,255,255,.09);
  border-radius:999px;
  background:rgba(0,0,0,.16);
}
.quantum-open {
  min-height:48px;
  padding:0 16px;
  flex:0 0 auto;
  border-radius:15px;
  border:1px solid rgba(168,183,255,.34);
  background:linear-gradient(135deg,rgba(129,111,255,.88),rgba(78,121,213,.90));
  color:white;
  font-weight:900;
  cursor:pointer;
  box-shadow:0 9px 28px rgba(64,75,168,.20);
}

.quantum-shell { padding:18px; display:grid; gap:14px; }
.quantum-header {
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:18px;
}
.quantum-header h2 { margin:5px 0 5px; font-size:clamp(1.45rem,4vw,2rem); }
.quantum-header p { color:var(--muted); line-height:1.45; max-width:720px; }
.quantum-back {
  min-height:42px;
  padding:0 14px;
  border-radius:13px;
  border:1px solid rgba(255,255,255,.14);
  cursor:pointer;
  flex:0 0 auto;
}

.quantum-stats {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:9px;
}
.quantum-stat {
  padding:11px 12px;
  border:1px solid rgba(255,255,255,.10);
  border-radius:15px;
  background:rgba(0,0,0,.16);
}
.quantum-stat span {
  display:block;
  font-size:.66rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:4px;
}
.quantum-stat strong { font-size:1.03rem; }

.qa-streak-track {
  padding:13px 14px;
  border:1px solid rgba(255,255,255,.10);
  border-radius:16px;
  background:rgba(0,0,0,.13);
}
.qa-streak-label {
  display:flex;
  justify-content:space-between;
  gap:12px;
  font-size:.76rem;
  color:var(--muted);
}
.qa-streak-label span:first-child { color:#e6ebf5; font-weight:800; }
.qa-streak-dots {
  display:grid;
  grid-template-columns:repeat(10,1fr);
  gap:7px;
  margin-top:10px;
}
.qa-streak-dot {
  min-height:10px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.08);
}
.qa-streak-dot.filled {
  background:rgba(144,160,255,.72);
  border-color:rgba(174,187,255,.78);
  box-shadow:0 0 13px rgba(126,146,255,.21);
}
.qa-streak-dot.reward {
  position:relative;
}
.qa-streak-dot.reward::after {
  content:"★";
  position:absolute;
  right:-4px;
  top:-13px;
  font-size:.62rem;
  color:#dbe1ff;
}

.qa-battle-panel {
  padding:16px;
  border:1px solid rgba(144,160,255,.18);
  border-radius:18px;
  background:
    radial-gradient(circle at 50% 42%,rgba(82,109,214,.13),transparent 44%),
    rgba(0,0,0,.14);
}
.qa-battle-heading {
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:15px;
}
.qa-battle-heading h3 { margin:4px 0 0; font-size:1.06rem; }
.qa-battle-subtext { color:var(--muted); font-size:.75rem; }

.qa-versus {
  display:grid;
  grid-template-columns:minmax(92px,150px) 54px minmax(92px,150px);
  align-items:center;
  justify-content:center;
  gap:18px;
  margin:18px 0 14px;
}
.qa-side { display:grid; gap:7px; text-align:center; }
.qa-side-label {
  color:var(--muted);
  font-size:.67rem;
  font-weight:850;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.qa-vs-mark {
  text-align:center;
  color:#adb7c9;
  font-size:.75rem;
  font-weight:950;
  letter-spacing:.12em;
}
.qa-card-placeholder,
.qa-battle-card {
  position:relative;
  width:100%;
  aspect-ratio:5 / 7;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.16);
  display:grid;
  place-items:center;
  overflow:hidden;
  background:
    radial-gradient(circle at 50% 44%,rgba(255,255,255,.055),transparent 48%),
    linear-gradient(160deg,rgba(255,255,255,.17),rgba(255,255,255,.065));
  box-shadow:0 14px 35px rgba(0,0,0,.25);
}
.qa-card-placeholder {
  border-style:dashed;
  color:rgba(255,255,255,.27);
}
.qa-question { font-size:2.5rem; font-weight:900; }
.qa-battle-card.red { color:#ff9ca8; }
.qa-battle-card .qa-rank {
  position:absolute;
  top:10px;
  left:11px;
  display:flex;
  flex-direction:column;
  align-items:center;
  font-size:1.35rem;
  font-weight:950;
  line-height:.9;
}
.qa-battle-card .qa-rank small { font-size:.82rem; margin-top:5px; }
.qa-battle-card .qa-center-suit { font-size:3rem; }
.qa-battle-card .qa-kind {
  position:absolute;
  left:8px;
  right:8px;
  bottom:9px;
  color:var(--muted);
  font-size:.56rem;
  text-transform:uppercase;
  letter-spacing:.06em;
}
.qa-battle-card.reveal {
  animation:qaReveal 320ms cubic-bezier(.2,.8,.32,1.1) both;
}
@keyframes qaReveal {
  from { opacity:0; transform:translateY(9px) rotateY(88deg) scale(.96); }
  to { opacity:1; transform:translateY(0) rotateY(0) scale(1); }
}

.qa-result {
  min-height:48px;
  padding:11px 12px;
  border:1px solid rgba(255,255,255,.08);
  border-radius:14px;
  background:rgba(0,0,0,.15);
  color:#dfe6f3;
  line-height:1.42;
  text-align:center;
}
.qa-result.win { border-color:rgba(123,190,159,.30); }
.qa-result.loss { border-color:rgba(216,116,132,.24); }
.qa-result.reward { border-color:rgba(166,153,255,.40); box-shadow:0 0 24px rgba(105,91,220,.12); }

.qa-reveal {
  width:100%;
  min-height:50px;
  margin-top:11px;
  border-radius:15px;
  border:1px solid rgba(255,255,255,.15);
  font-weight:950;
  cursor:pointer;
}
.qa-reveal:disabled { opacity:.42; cursor:not-allowed; }
.qa-choice-row {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
  margin-top:11px;
}
.qa-choice-row .qa-reveal {
  width:100%;
  margin-top:0;
}


.qa-progress-grid {
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:12px;
}
.qa-progress-card {
  padding:14px;
  border:1px solid rgba(255,255,255,.10);
  border-radius:17px;
  background:rgba(0,0,0,.13);
}
.qa-progress-title {
  display:flex;
  justify-content:space-between;
  gap:12px;
  align-items:flex-end;
  margin-bottom:11px;
}
.qa-progress-title h3 { margin:4px 0 0; font-size:1rem; }
.qa-progress-title > span { color:var(--muted); font-size:.70rem; }

.qa-fragment-grid { display:grid; gap:8px; }
.qa-fragment-row {
  display:grid;
  grid-template-columns:minmax(125px,1fr) minmax(90px,1.1fr) auto;
  gap:10px;
  align-items:center;
}
.qa-fragment-name { font-size:.79rem; }
.qa-fragment-track {
  height:8px;
  border-radius:999px;
  overflow:hidden;
  background:rgba(255,255,255,.07);
}
.qa-fragment-fill {
  height:100%;
  border-radius:999px;
  background:rgba(151,165,255,.70);
}
.qa-fragment-count {
  min-width:30px;
  text-align:right;
  color:#dbe1ed;
  font-size:.76rem;
  font-weight:850;
}

.qa-collection-line {
  display:flex;
  justify-content:space-between;
  gap:15px;
  padding:9px 0 11px;
  border-bottom:1px solid rgba(255,255,255,.08);
  color:var(--muted);
  font-size:.80rem;
}
.qa-collection-line strong { color:var(--text); }
.qa-special-inventory { display:grid; gap:7px; margin-top:10px; }
.qa-special-row {
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:7px 9px;
  border-radius:11px;
  background:rgba(255,255,255,.035);
  font-size:.77rem;
}
.qa-special-row span { color:#d8dfec; }
.qa-special-row strong { color:#f3f6fb; }
.qa-empty { color:var(--muted); font-size:.78rem; line-height:1.4; }

.qa-footnote {
  color:var(--muted);
  font-size:.76rem;
  line-height:1.45;
  padding:1px 2px 0;
}
.qa-footnote strong { color:#dce3f1; }

@media (prefers-reduced-motion:reduce) {
  .qa-battle-card.reveal { animation-duration:1ms !important; }
}

@media (max-width:720px) {
  .quantum-entry { align-items:stretch; flex-direction:column; }
  .quantum-open { width:100%; }
  .quantum-header { flex-direction:column; }
  .quantum-back { width:100%; }
  .quantum-stats { grid-template-columns:1fr 1fr; }
  .qa-progress-grid { grid-template-columns:1fr; }
}

@media (max-width:430px) {
  .quantum-shell { padding:13px; }
  .qa-versus {
    grid-template-columns:minmax(82px,1fr) 36px minmax(82px,1fr);
    gap:8px;
  }
  .qa-battle-card .qa-center-suit { font-size:2.35rem; }
  .qa-battle-card .qa-rank { font-size:1.05rem; top:8px; left:8px; }
  .qa-fragment-row { grid-template-columns:minmax(110px,1.25fr) 1fr auto; gap:7px; }
  .qa-streak-label { align-items:flex-start; flex-direction:column; gap:4px; }
}


/* Fusion Chamber — v0.9 */
.fusion-entry { display:flex; justify-content:space-between; gap:18px; align-items:center; margin-top:14px; padding:16px; border:1px solid rgba(165,132,255,.22); border-radius:18px; background:radial-gradient(circle at 20% 20%,rgba(92,63,170,.18),transparent 45%),rgba(0,0,0,.13); }
.fusion-entry h3,.fusion-panel h3 { margin:4px 0 6px; }
.fusion-entry p,.fusion-panel p { margin:0; color:var(--muted); line-height:1.45; }
.fusion-shell { display:grid; gap:14px; padding:18px; }
.fusion-bank { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; }
.fusion-bank>div { padding:12px; border:1px solid rgba(255,255,255,.09); border-radius:14px; background:rgba(0,0,0,.14); }
.fusion-bank span { display:block; color:var(--muted); font-size:.72rem; }
.fusion-bank strong { display:block; margin-top:4px; font-size:1.1rem; }
.fusion-panel { padding:15px; border:1px solid rgba(255,255,255,.10); border-radius:17px; background:rgba(0,0,0,.13); }
.gamble-panel { display:flex; align-items:center; justify-content:space-between; gap:18px; border-color:rgba(167,141,255,.28); }
.fusion-actions { display:flex; gap:8px; flex-wrap:wrap; justify-content:flex-end; }
.fusion-panel-heading { display:flex; justify-content:space-between; align-items:end; gap:12px; margin-bottom:10px; }
.fusion-panel-heading>span { color:var(--muted); font-size:.72rem; }
.fusion-inventory,.fusion-specials { display:grid; gap:8px; }
.fusion-row,.fusion-special-row { display:grid; align-items:center; gap:10px; padding:10px 11px; border-radius:12px; background:rgba(255,255,255,.035); }
.fusion-row { grid-template-columns:1fr auto; }
.fusion-row>div { display:flex; gap:10px; align-items:baseline; flex-wrap:wrap; }
.fusion-row span,.fusion-special-row span { color:var(--muted); font-size:.76rem; }
.fusion-special-row { grid-template-columns:minmax(130px,1fr) auto minmax(130px,1fr); }
.fusion-button:disabled { opacity:.42; cursor:not-allowed; }
@media(max-width:720px){.fusion-entry,.gamble-panel,.fusion-panel-heading{align-items:stretch;flex-direction:column}.fusion-bank{grid-template-columns:1fr}.fusion-actions{justify-content:stretch}.fusion-actions button{flex:1}.fusion-special-row{grid-template-columns:1fr auto}.fusion-special-row span:last-child{grid-column:1/-1}.fusion-entry .quantum-open{width:100%}}


/* ==========================================================================
   v0.12 / site v79 — Chain Board + Terraform + shared-site integration
   ========================================================================== */
.board-grid {
  display:grid;
  grid-template-columns:repeat(7,minmax(64px,86px));
  justify-content:center;
  gap:10px;
  min-height:126px;
  align-items:start;
  perspective:900px;
}
.board-placeholder {
  aspect-ratio:5 / 7;
  border:1px dashed rgba(255,255,255,.13);
  border-radius:14px;
  display:grid;
  place-items:center;
  color:rgba(255,255,255,.22);
  background:rgba(0,0,0,.10);
  font-weight:850;
}
.board-card.selected { box-shadow:0 16px 34px rgba(0,0,0,.32),0 0 0 2px rgba(255,255,255,.32) inset; }
.board-card.shifted { border-color:rgba(108,220,255,.68); box-shadow:0 0 24px rgba(93,184,255,.16),0 12px 28px rgba(0,0,0,.24); }
.card-shift {
  position:absolute;
  right:6px;
  top:6px;
  z-index:3;
  padding:3px 6px;
  border-radius:999px;
  background:rgba(12,29,49,.92);
  color:#bfeeff;
  border:1px solid rgba(132,222,255,.42);
  font-size:.57rem;
  font-weight:950;
}
.board-controls {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:10px;
  margin-top:14px;
}
.board-controls button,.action-tray button,.dev-grid button {
  min-height:46px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.14);
  font-weight:850;
  cursor:pointer;
}
.board-controls button:disabled,.action-tray button:disabled,.dev-grid button:disabled { opacity:.35; cursor:not-allowed; }
.hand-heading,.action-heading { margin-top:22px; }
.action-hand {
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:stretch;
}
.action-card {
  width:min(150px,44vw);
  min-height:150px;
  padding:12px 10px;
  display:grid;
  align-content:center;
  justify-items:center;
  gap:9px;
  text-align:center;
  background:radial-gradient(circle at 50% 25%,rgba(53,155,127,.32),rgba(16,31,40,.94) 64%);
  border-color:rgba(137,255,222,.38);
  color:#e9fff8;
}
.action-card.advanced {
  background:radial-gradient(circle at 50% 25%,rgba(218,177,76,.38),rgba(47,34,18,.96) 65%);
  border-color:rgba(255,213,111,.52);
}
.action-card:disabled { opacity:.46; cursor:not-allowed; }
.action-symbol { font-size:1.7rem; font-weight:950; color:#baffea; }
.action-card.advanced .action-symbol { color:#ffe39c; }
.action-card strong { font-size:.84rem; }
.action-card small { color:var(--muted); line-height:1.3; }
.action-empty,.board-empty { width:100%; }
.action-tray {
  display:grid;
  grid-template-columns:1fr auto;
  align-items:center;
  gap:14px;
  margin-top:13px;
  padding:12px;
  border:1px solid rgba(126,220,255,.28);
  border-radius:16px;
  background:rgba(18,52,68,.23);
}
.action-tray strong { color:#d8f7ff; }
.action-help { margin-top:3px; color:var(--muted); font-size:.78rem; }
.action-tray-buttons { display:flex; gap:8px; }
.dev-panel { padding:16px 18px; }
.dev-panel p { color:var(--muted); line-height:1.45; font-size:.8rem; margin-top:10px; }
.dev-grid { display:flex; flex-wrap:wrap; gap:8px; }
.fusion-terraform-row { grid-template-columns:minmax(110px,1fr) auto minmax(150px,1.2fr) auto !important; }

@media (max-width:820px) {
  .board-grid,.hand { grid-template-columns:repeat(4,minmax(56px,78px)); }
  .board-controls { grid-template-columns:1fr 1fr; }
  .fusion-terraform-row { grid-template-columns:1fr auto !important; }
  .fusion-terraform-row span:nth-of-type(2) { grid-column:1 / -1; }
}
@media (max-width:520px) {
  .night-chain-site-main { padding-left:.45rem; padding-right:.45rem; }
  .topbar,.run-setup,.quantum-shell,.fusion-shell,.play-area,.status,.dev-panel { border-radius:17px; }
  .board-grid,.hand { grid-template-columns:repeat(4,minmax(50px,1fr)); gap:7px; }
  .board-placeholder { border-radius:11px; }
  .board-controls { grid-template-columns:1fr; }
  .action-tray { grid-template-columns:1fr; }
  .action-tray-buttons { display:grid; grid-template-columns:1fr 1fr; }
}