:root {
  --paper: #eef0ec;
  --plate: #fbfbf9;
  --ink: #15171a;
  --soft: #474c52;
  --mid: #737980;
  --hair: #cdd1cc;
  --on: #26282c;
  --off: #ecede9;
  --physics: #2a78d6;
  --open: #d95926;
  --blank: #199e70;
  --wrong: #d03b3b;
  --focus: #2a78d6;
  --display: "Schibsted Grotesk", "Helvetica Neue", Arial, sans-serif;
  --body: "Source Serif 4", Georgia, "Times New Roman", serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #0f1113; --plate: #171a1d; --ink: #e6e7e2; --soft: #b8bdc3; --mid: #8e949b; --hair: #2b3036;
    --on: #dfe1dc; --off: #202428; --physics: #3987e5; --open: #d95926; --blank: #199e70; --wrong: #ff6a4a; --focus: #7497ff;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #0f1113; --plate: #171a1d; --ink: #e6e7e2; --soft: #b8bdc3; --mid: #8e949b; --hair: #2b3036;
  --on: #dfe1dc; --off: #202428; --physics: #3987e5; --open: #d95926; --blank: #199e70; --wrong: #ff6a4a; --focus: #7497ff;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--body); font-size: 17px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
.wrap { max-width: 1120px; margin: 0 auto; padding-inline: 16px; padding-block: 22px 56px; display: grid; gap: 24px; }
header { display: grid; gap: 6px; }
h1 { font-family: var(--display); font-weight: 800; font-size: clamp(28px, 4.6vw, 42px); line-height: 1.04; letter-spacing: -0.02em; margin: 0; text-wrap: balance; }
.deck { margin: 0; color: var(--soft); max-width: 64ch; }
.label { font-family: var(--display); font-weight: 600; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mid); }
.panel { background: var(--plate); border: 1px solid var(--hair); border-radius: 6px; padding: 14px; display: grid; gap: 12px; min-width: 0; }
.triple { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 620px) { .triple { grid-template-columns: minmax(0, 1fr); } }
.frame { display: grid; gap: 6px; min-width: 0; }
.frame canvas { width: 100%; aspect-ratio: 1 / 1; display: block; image-rendering: pixelated; border-radius: 3px; background: var(--off); }
.verdict { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; }
.chip { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 13px; padding: 5px 10px; border-radius: 999px; border: 1px solid var(--hair); }
.chip i { width: 10px; height: 10px; border-radius: 50%; display: inline-block; background: var(--mid); }
.chip[data-k="physics"] i { background: var(--physics); }
.chip[data-k="open"] i { background: var(--open); }
.chip[data-k="blank"] i { background: var(--blank); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; }
.tile { border: 1px solid var(--hair); border-radius: 4px; padding: 8px 10px; display: grid; gap: 2px; }
.tile .v { font-family: var(--mono); font-size: 19px; font-variant-numeric: tabular-nums; }
.tile .u { font-family: var(--mono); font-size: 12px; color: var(--mid); }
.controls { display: grid; grid-template-columns: minmax(0, 1fr); gap: 18px; }
@media (min-width: 900px) { .controls { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); } }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.seg { display: inline-flex; border: 1px solid var(--hair); border-radius: 5px; overflow: hidden; }
.seg button { border: 0; border-right: 1px solid var(--hair); background: transparent; color: var(--ink); font-family: var(--display); font-weight: 600; font-size: 13px; padding: 7px 12px; cursor: pointer; }
.seg button:last-child { border-right: 0; }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--plate); }
.btn { border: 1px solid var(--hair); background: transparent; color: var(--ink); font-family: var(--display); font-weight: 600; font-size: 13px; padding: 7px 12px; border-radius: 5px; cursor: pointer; }
.btn:disabled { opacity: 0.45; cursor: default; }
input[type="number"] { width: 5.5em; font-family: var(--mono); font-size: 15px; padding: 6px 8px; border: 1px solid var(--hair); border-radius: 5px; background: var(--plate); color: var(--ink); }
button:focus-visible, input:focus-visible, summary:focus-visible, canvas:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
#map { width: 100%; max-width: 520px; aspect-ratio: 1 / 1; display: block; cursor: pointer; touch-action: manipulation; }
.truth { display: flex; flex-wrap: wrap; gap: 6px; }
.truth button { display: inline-flex; flex-direction: column; align-items: center; gap: 4px; padding: 6px 6px 4px; border: 1px solid var(--hair); border-radius: 5px; background: transparent; cursor: pointer; color: var(--ink); font-family: var(--mono); font-size: 11px; }
.truth button .cells { display: inline-flex; gap: 1px; }
.truth button .cells b { width: 9px; height: 9px; display: inline-block; background: var(--off); border: 1px solid var(--hair); }
.truth button .cells b.on { background: var(--on); border-color: var(--on); }
.truth button[aria-pressed="true"] { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.truth button .out { width: 14px; height: 14px; border-radius: 3px; background: var(--off); border: 1px solid var(--hair); }
.truth button[aria-pressed="true"] .out { background: var(--on); border-color: var(--on); }
.legend { display: flex; flex-wrap: wrap; gap: 8px 18px; font-family: var(--mono); font-size: 12px; color: var(--soft); align-items: center; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.sw { width: 14px; height: 14px; border-radius: 3px; display: inline-block; }
details { background: var(--plate); border: 1px solid var(--hair); border-radius: 6px; padding: 12px 16px; }
summary { font-family: var(--display); font-weight: 600; cursor: pointer; }
details .notes { display: grid; gap: 10px; max-width: 66ch; margin-top: 10px; }
details .notes p { margin: 0; }
.math { font-family: var(--mono); font-size: 15px; }
.tablewrap { overflow-x: auto; }
table { border-collapse: collapse; font-size: 15px; }
td, th { text-align: left; padding: 4px 12px 4px 0; border-bottom: 1px solid var(--hair); vertical-align: top; }
th { font-family: var(--display); font-weight: 600; font-size: 13px; }