:root{
  --bg:#070913;
  --panel:rgba(255,255,255,.06);
  --panel2:rgba(0,0,0,.25);
  --line:rgba(255,255,255,.12);
  --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.62);

  --cyan:#35f6ff;
  --mint:#6dffb5;
  --violet:#b08cff;
  --hot:#ff2bd6;
  --amber:#ffb347;
  --red:#ff3b54;

  --shadow: 0 20px 70px rgba(0,0,0,.45);
  --blur: blur(14px);
  --radius: 18px;

  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: "Noto Sans JP", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--text);
  background: radial-gradient(1200px 900px at 20% 10%, rgba(53,246,255,.12), transparent 60%),
              radial-gradient(900px 700px at 85% 20%, rgba(255,43,214,.12), transparent 55%),
              radial-gradient(1000px 800px at 60% 90%, rgba(176,140,255,.10), transparent 65%),
              linear-gradient(180deg, #050612, #070913 45%, #050612);
  overflow-x:hidden;
}

a{color:inherit}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.bg{position:fixed;inset:0;pointer-events:none;z-index:-1}
.bg__grid{
  position:absolute;inset:-20%;
  background:
    linear-gradient(rgba(53,246,255,.06) 1px, transparent 1px) 0 0/ 56px 56px,
    linear-gradient(90deg, rgba(176,140,255,.05) 1px, transparent 1px) 0 0/ 56px 56px;
  transform: perspective(900px) rotateX(62deg) translateY(10%);
  filter: blur(.2px);
  opacity:.55;
}
.bg__scanlines{
  position:absolute;inset:0;
  background: repeating-linear-gradient(
    180deg,
    rgba(255,255,255,.04) 0,
    rgba(255,255,255,.04) 1px,
    transparent 2px,
    transparent 6px
  );
  mix-blend-mode: overlay;
  opacity:.25;
}
.bg__glow{position:absolute;inset:0;background:radial-gradient(700px 500px at 50% 15%, rgba(53,246,255,.10), transparent 60%)}
.bg__stars{
  position:absolute;inset:0;
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(255,255,255,.55), transparent 50%),
    radial-gradient(1px 1px at 35% 70%, rgba(255,255,255,.45), transparent 55%),
    radial-gradient(1px 1px at 80% 35%, rgba(255,255,255,.38), transparent 55%),
    radial-gradient(1px 1px at 65% 85%, rgba(255,255,255,.30), transparent 55%),
    radial-gradient(1px 1px at 20% 90%, rgba(255,255,255,.30), transparent 55%);
  opacity:.7;
  animation: drift 12s linear infinite;
}

@keyframes drift{from{transform:translateY(0)}to{transform:translateY(-18px)}}

.topbar{
  position:sticky;top:0;z-index:10;
  display:flex;gap:18px;align-items:center;justify-content:space-between;
  padding:14px 18px;
  background: rgba(0,0,0,.35);
  backdrop-filter: var(--blur);
  border-bottom:1px solid var(--line);
}

.brand{display:flex;gap:12px;align-items:center;min-width:260px}
.brand__mark{
  width:38px;height:38px;border-radius:12px;
  background:
    radial-gradient(12px 12px at 30% 30%, rgba(255,255,255,.9), transparent 60%),
    radial-gradient(22px 22px at 70% 70%, rgba(53,246,255,.55), transparent 62%),
    linear-gradient(135deg, rgba(176,140,255,.55), rgba(255,43,214,.45));
  box-shadow: 0 0 0 1px rgba(255,255,255,.10), 0 12px 40px rgba(53,246,255,.20);
}
.brand__title{font-family:var(--mono);letter-spacing:.08em;font-weight:600}
.brand__sub{font-size:12px;color:var(--muted)}

.nav{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.nav__link{
  text-decoration:none;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.08em;
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  background: rgba(255,255,255,.04);
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.nav__link:hover{transform:translateY(-1px);border-color:rgba(53,246,255,.35);background:rgba(53,246,255,.06)}
.nav__btn{
  appearance:none;border:1px solid rgba(255,59,84,.35);color:rgba(255,255,255,.9);
  background: rgba(255,59,84,.10);
  border-radius:999px;
  padding:10px 12px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.08em;
  cursor:pointer;
}
.nav__btn:hover{background: rgba(255,59,84,.16)}

.shell{
  display:grid;
  grid-template-columns: 360px 1fr 380px;
  gap:18px;
  padding:18px;
  max-width: 1400px;
  margin: 0 auto;
}

.panel{
  background: var(--panel);
  border:1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: var(--blur);
  position:relative;
  overflow:hidden;
}
.panel::before{
  content:"";
  position:absolute;inset:-1px;
  background: radial-gradient(600px 320px at 20% 0%, rgba(53,246,255,.10), transparent 60%),
              radial-gradient(560px 320px at 90% 20%, rgba(255,43,214,.10), transparent 55%);
  opacity:.85;
  pointer-events:none;
}
.panel > *{position:relative}
.panel__hdr{padding:16px 16px 10px;border-bottom:1px solid rgba(255,255,255,.06)}
.panel__kicker{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:rgba(255,255,255,.58)}
.panel__title{margin:6px 0 0;font-size:18px;letter-spacing:.02em}
.panel__footer{padding:12px 16px 16px;color:var(--muted)}

.panel--wide{grid-column:1/-1}

.hud{padding:14px 16px;display:grid;gap:12px}
.hud__row{display:flex;gap:10px;flex-wrap:wrap}
.hud__block{padding:12px;border:1px dashed rgba(255,255,255,.14);border-radius:14px;background:rgba(0,0,0,.18)}
.hud__label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:rgba(53,246,255,.85);margin-bottom:8px}
.hud__value{color:rgba(255,255,255,.86);line-height:1.55}
.hud__list{margin:0;padding-left:18px;color:rgba(255,255,255,.80);line-height:1.6}

.dossier{margin:0 16px 16px;border:1px solid rgba(255,255,255,.10);border-radius:16px;background:rgba(0,0,0,.22)}
.dossier__hdr{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:12px 12px 10px;border-bottom:1px solid rgba(255,255,255,.08)}
.dossier__title{font-family:var(--mono);letter-spacing:.12em;font-size:12px}
.dossier__meta{font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.70)}
.dossier__body{padding:12px;line-height:1.7;color:rgba(255,255,255,.82)}

.terminal{margin:16px;border:1px solid rgba(255,255,255,.12);border-radius:18px;background:rgba(0,0,0,.28)}
.terminal__top{display:flex;align-items:center;gap:12px;padding:12px 12px 10px;border-bottom:1px solid rgba(255,255,255,.08)}
.terminal__path{font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.70)}
.terminal__lights{display:flex;gap:8px}
.dot{width:10px;height:10px;border-radius:999px;display:inline-block;box-shadow:0 0 0 1px rgba(255,255,255,.12)}
.dot--r{background:rgba(255,59,84,.85)}
.dot--y{background:rgba(255,179,71,.85)}
.dot--g{background:rgba(109,255,181,.85)}
.terminal__body{padding:12px}

.prompt{padding:12px;border-radius:14px;border:1px solid rgba(53,246,255,.18);background:linear-gradient(180deg, rgba(53,246,255,.05), rgba(0,0,0,.18))}
.prompt__label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:rgba(53,246,255,.88)}
.prompt__value{margin-top:8px;line-height:1.6;color:rgba(255,255,255,.88)}

.inputrow{display:flex;gap:10px;align-items:center;margin-top:12px}
.input{
  width:100%;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.92);
  font-family:var(--mono);
  outline:none;
}
.input:focus{border-color:rgba(53,246,255,.45);box-shadow:0 0 0 4px rgba(53,246,255,.10)}

.btn{
  appearance:none;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.92);
  border-radius: 14px;
  padding: 11px 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  cursor:pointer;
  transition: transform .12s ease, border-color .12s ease, background .12s ease;
}
.btn:hover{transform:translateY(-1px);border-color:rgba(255,255,255,.26)}
.btn--primary{
  border-color: rgba(53,246,255,.38);
  background: linear-gradient(135deg, rgba(53,246,255,.18), rgba(176,140,255,.14));
}

.terminal__row{display:flex;gap:10px;align-items:center;margin-top:12px;flex-wrap:wrap}
.spacer{flex:1}
.score{display:flex;gap:10px;align-items:baseline}
.score__label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:rgba(255,255,255,.62)}
.score__value{font-family:var(--mono);font-size:14px}

.select{
  margin-left:8px;
  padding:8px 10px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.22);
  color: rgba(255,255,255,.92);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  outline: none;
}
.select:focus{border-color:rgba(53,246,255,.45);box-shadow:0 0 0 4px rgba(53,246,255,.10)}

.log{margin-top:12px;border-top:1px solid rgba(255,255,255,.08);padding-top:12px;min-height:120px;display:grid;gap:8px}
.log__line{font-family:var(--mono);font-size:12px;line-height:1.6;color:rgba(255,255,255,.82)}
.log__line--good{color:rgba(109,255,181,.92)}
.log__line--bad{color:rgba(255,59,84,.92)}
.log__line--hint{color:rgba(255,179,71,.92)}

.slate{padding:14px 16px 16px}
.slate__legend{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.slate__grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:10px;
}

.slate__tray{
  margin-top:12px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  padding:10px;
  border-radius:16px;
  border:1px dashed rgba(255,255,255,.14);
  background: rgba(0,0,0,.14);
  min-height:54px;
}

.frag{
  appearance:none;
  border-radius:14px;
  border:1px solid rgba(109,255,181,.28);
  background: rgba(109,255,181,.08);
  color: rgba(109,255,181,.92);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .10em;
  padding:10px 12px;
  cursor:pointer;
}
.frag:hover{transform:translateY(-1px)}
.frag--selected{border-color:rgba(53,246,255,.48);background:rgba(53,246,255,.10);color:rgba(53,246,255,.92)}
.frag--used{opacity:.45;border-color:rgba(255,255,255,.14);background:rgba(255,255,255,.04);color:rgba(255,255,255,.65);cursor:not-allowed}

.slatecell__coord{
  position:absolute;
  left:10px;top:10px;
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.12em;
  color: rgba(255,255,255,.50);
  opacity:.95;
}
.slatecell--locked{opacity:.6}

.puzzle__figure{
  margin-top:10px;
  padding:10px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.18);
}
.puzzle__figureTitle{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:rgba(255,179,71,.92);margin-bottom:8px}
.puzzle__table{width:100%;border-collapse:separate;border-spacing:8px}
.puzzle__table td,.puzzle__table th{
  text-align:center;
  padding:10px 8px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  font-family: var(--mono);
}
.puzzle__grid3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:10px;
}
.puzzle__cell{
  padding:12px 10px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  text-align:center;
  font-family: var(--mono);
}

.slatecell{
  aspect-ratio: 1 / 1;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.18);
  position:relative;
  overflow:hidden;
  cursor:pointer;
}
.slatecell::before{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(14px 14px at 30% 30%, rgba(53,246,255,.12), transparent 60%),
    radial-gradient(18px 18px at 80% 70%, rgba(255,43,214,.10), transparent 60%),
    linear-gradient(135deg, rgba(255,255,255,.05), transparent);
  opacity:.9;
}
.slatecell__sig{
  position:absolute;inset:0;
  display:grid;place-items:center;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.10em;
  color: rgba(255,255,255,.55);
}
.slatecell--owned{
  border-color: rgba(109,255,181,.30);
  background: rgba(109,255,181,.06);
}
.slatecell--owned .slatecell__sig{color: rgba(109,255,181,.92)}
.slatecell--pulse{animation: pulse 850ms ease-out 1}
@keyframes pulse{0%{transform:scale(.96)}60%{transform:scale(1.02)}100%{transform:scale(1)}}

.slate__actions{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.slate__note{margin-top:12px;color:rgba(255,255,255,.70);line-height:1.6}

.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.04);
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.10em;
}
.chip--good{border-color:rgba(109,255,181,.28);background:rgba(109,255,181,.07)}
.chip--warn{border-color:rgba(255,179,71,.28);background:rgba(255,179,71,.07)}

.circuits{padding:14px 16px 16px;display:grid;grid-template-columns: 1.1fr .9fr;gap:16px}
.circuits__stack{display:grid;gap:10px}
.circuit{padding:12px;border-radius:16px;border:1px solid rgba(255,255,255,.12);background:rgba(0,0,0,.22)}
.circuit__label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:rgba(255,179,71,.92)}
.circuit__value{margin-top:8px;font-family:var(--mono);font-size:16px;letter-spacing:.06em;color:rgba(255,255,255,.92)}

.circuits__controls{display:grid;gap:10px}
.field__label{display:block;font-size:12px;color:rgba(255,255,255,.75);margin-bottom:6px}
.circuits__btns{display:flex;gap:10px;flex-wrap:wrap}

.footer{
  display:flex;justify-content:space-between;gap:10px;align-items:center;
  padding:14px 18px;
  border-top:1px solid rgba(255,255,255,.08);
  color:rgba(255,255,255,.62);
  font-family:var(--mono);
  font-size:12px;
}

.tiny{font-size:12px;color:rgba(255,255,255,.68)}
.kbd{
  font-family:var(--mono);
  padding:2px 6px;
  border-radius:8px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
}

@media (max-width: 1100px){
  .shell{grid-template-columns: 1fr;}
  .panel--wide{grid-column:auto}
  .circuits{grid-template-columns:1fr}
}

@media (max-width: 520px){
  .topbar{padding:12px 12px;gap:12px;flex-wrap:wrap}
  .brand{min-width:unset}
  .shell{padding:12px}
  .terminal{margin:12px}
  .panel__hdr{padding:14px 14px 10px}
}

@media (orientation: landscape) and (max-height: 520px){
  .shell{padding:12px;gap:12px}
  .panel__hdr{padding:12px 12px 8px}
  .terminal__body{padding:10px}
}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}