:root{
  --bg:#0b0f12;
  --panel:#0f151c;
  --panel-2:#0b1218;
  --ink:#d9e6ff;
  --ink-dim:#8aa2c4;
  --muted:#5f7593;
  --grid:#13202c;
  --line:#1a2733;
  --accent:#7df9ff;     /* neon cyan */
  --accent-2:#ffd166;   /* warm amber */
  --good:#6ee7a8;
  --warn:#ffb454;
  --bad:#ff6b6b;
  --shadow:0 8px 24px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.03);
  --radius:14px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  color:var(--ink);
  background: radial-gradient(1200px 600px at 15% -10%, #12202d 0%, transparent 60%),
              radial-gradient(900px 600px at 120% 20%, #1b1f2a 0%, transparent 55%),
              var(--bg);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing:.2px;
}

/* subtle CRT scanlines */
body:before{
  content:"";
  position:fixed; inset:0;
  pointer-events:none;
  background: repeating-linear-gradient(
    to bottom, rgba(255,255,255,.03), rgba(255,255,255,.03) 1px,
    transparent 1px, transparent 3px
  );
  mix-blend-mode:overlay;
}

.shell{
  max-width:1200px; margin:32px auto; padding:0 20px;
}

.titlebar{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px; margin-bottom:18px;
}
.brand{
  display:flex; align-items:center; gap:14px;
}
.brand .dot{width:10px; height:10px; border-radius:50%; background:var(--accent); box-shadow:0 0 14px var(--accent)}
.brand h1{
  margin:0; font-size:18px; font-weight:700; letter-spacing:.8px;
  text-transform:uppercase;
}
.meta{
  color:var(--ink-dim); font-size:12px; display:flex; gap:22px; flex-wrap:wrap;
}
.meta b{color:var(--ink); font-weight:600}

.layout{
  display:grid; grid-template-columns: 330px 1fr; gap:18px;
}

.panel{
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

/* HUD (left) */
.hud{padding:16px 16px 14px}
.hud h2{
  margin:0 0 10px; font-size:13px; text-transform:uppercase; letter-spacing:.6px; color:var(--ink-dim)
}
.kv{
  display:grid; grid-template-columns: 1fr auto; row-gap:8px; column-gap:12px;
  font-size:14px; align-items:center;
}
.kv .k{color:var(--muted)}
.kv .v{font-weight:700; color:var(--ink)}
.badge{
  display:inline-flex; align-items:center; gap:8px;
  font-size:12px; padding:6px 10px; border:1px solid var(--line);
  border-radius:10px; color:var(--ink-dim); background:rgba(0,0,0,.2)
}
.badge .led{
  width:8px; height:8px; border-radius:50%; background:var(--warn);
  box-shadow:0 0 10px var(--warn);
}
.badge.running .led{background:var(--good); box-shadow:0 0 10px var(--good)}

.bar{
  height:8px; background:var(--grid); border-radius:8px; overflow:hidden; border:1px solid var(--line);
}
.bar > span{display:block; height:100%; width:0%}

.bar--cyan > span{background:linear-gradient(90deg, #3be7ff, var(--accent))}
.bar--amber > span{background:linear-gradient(90deg, #ffd166, #ffb454)}

.section{margin-top:14px; padding-top:14px; border-top:1px dashed #213243}
.section .row{display:flex; justify-content:space-between; align-items:center; margin:6px 0; font-size:12px; color:var(--ink-dim)}
.section .row b{color:var(--ink)}

/* Right side: controls + grid */
.board{
  display:grid; grid-template-rows: auto 1fr;
}
.controls{
  display:flex; gap:10px; padding:14px; align-items:center; border-bottom:1px solid var(--line);
}
.controls button{
  padding:10px 14px; font-size:12px; letter-spacing:.4px; text-transform:uppercase;
  color:var(--bg); background:var(--accent); border:none; border-radius:10px; cursor:pointer;
  box-shadow:0 6px 18px rgba(125,249,255,.25);
}
.controls button.secondary{
  background:#111a22; color:var(--ink); border:1px solid var(--line); box-shadow:none;
}

.gridwrap{ padding:14px; }
.grid{
  display:inline-grid;
  grid-template-columns: repeat(var(--n), 12px);
  gap:1px;
  padding:10px;
  border-radius:12px;
  background: linear-gradient(180deg,#0c141b,#0a1218);
  border:1px solid var(--line);
  box-shadow: inset 0 0 0 1px rgba(125,249,255,.05), 0 10px 24px rgba(0,0,0,.45);
  user-select: none; /* Prevent text selection during drag */
}
.cell{
  width:12px; height:12px; border-radius:2px; background:#0e1a24; cursor:pointer;
  transition:transform .08s ease-out, background .08s linear, box-shadow .08s linear;
}
.cell.dead{ background: #0e1a24; box-shadow:none }
.cell.alive{
  /* gradient now parameterized by --org to tint per-organism */
  background: radial-gradient(65% 65% at 50% 45%, color-mix(in hsl, var(--org) 85%, white 15%) 0%, var(--org) 60%, #0b1822 100%);
  box-shadow: 0 0 8px color-mix(in hsl, var(--org) 70%, transparent), inset 0 0 4px rgba(255,255,255,.15);
}
.cell:hover{ transform:scale(1.08) }

/* tiny legend chips */
.chips{display:flex; gap:8px; margin-left:auto; color:var(--ink-dim); font-size:12px;}
.chip{display:inline-flex; align-items:center; gap:6px; padding:6px 10px; border:1px solid var(--line); border-radius:10px;}
.sw{width:10px; height:10px; border-radius:2px}
.sw.alive{background:#3be7ff; box-shadow:0 0 8px rgba(59,231,255,.7)}
.sw.dead{background:#13202c}

@media (max-width: 960px){
  .layout{grid-template-columns:1fr}
}

/* Pattern overlay */
.overlay{
  position: relative;
  margin: 12px 14px 0;
  padding: 10px 12px;
  border:1px solid var(--line);
  border-radius: 10px;
  background: rgba(12,20,27,.6);
  box-shadow: var(--shadow);
}
.overlay.hidden{ display:none; }
.overlay-header{
  display:flex; align-items:center; gap:8px; font-size:12px; color:var(--ink-dim);
  margin-bottom: 6px;
}
.overlay-header .dot{width:8px; height:8px; border-radius:50%; background:var(--accent); box-shadow:0 0 10px var(--accent)}
.overlay-list{
  display:grid; gap:8px;
}
.pattern-card{
  display:flex; justify-content:space-between; align-items:center;
  padding:8px 10px; border:1px dashed #213243; border-radius:8px; background:rgba(0,0,0,.25);
  font-size:12px;
}
.pattern-card .meta{ color:var(--ink-dim) }
.pattern-tag{
  padding:4px 8px; border-radius:8px; border:1px solid var(--line); background:rgba(0,0,0,.2);
  font-size:11px; color:var(--ink);
}

/* Cell outlines when paused on known pattern */
.cell.outline{
  outline: 2px solid var(--accent-2);
  outline-offset: -1px;
  box-shadow: 0 0 10px rgba(255,209,102,.35), inset 0 0 4px rgba(255,255,255,.15);
}