/* Layout: a single game-table column — rack on top, board-letter filters beneath, results racked by word length. */
:root {
  --bg: #e9efeb;
  --surface: #ffffff;
  --line: #cfdad4;
  --fg: #13241d;
  --muted: #56685f;
  --board: #1d5a47;
  --board-fg: #f2f7f4;
  --tile: #efd9a7;
  --tile-edge: #c9ab6c;
  --tile-fg: #2b1e0c;
  --blank: #2f6fb0;
  --chip: #f4f7f5;
  --chip-hover: #e2ece6;
  --display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --body: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1613; --surface: #16211c; --line: #26362f; --fg: #e3ece7; --muted: #8ea299;
    --board: #2a7a60; --board-fg: #f2f7f4; --tile: #e4cc96; --tile-edge: #a88a4d; --tile-fg: #2b1e0c;
    --blank: #77b4ec; --chip: #1c2a24; --chip-hover: #24362e; color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font-family: var(--body); font-size: 16px; line-height: 1.5;
  padding-top: env(safe-area-inset-top, 0px); padding-bottom: env(safe-area-inset-bottom, 0px);
}
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { max-width: 960px; margin: 0 auto; padding-inline: 16px; padding-block: 28px 40px; display: grid; gap: 22px; }
.stack { display: grid; gap: 22px; }

header { display: grid; gap: 10px; }
.logo { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; text-decoration: none; width: fit-content; }
.logo .tile { width: 34px; height: 34px; font-size: 19px; }
.logo .gap { width: 10px; }
.tagline { margin: 0; color: var(--muted); max-width: 62ch; }

.tile {
  position: relative; display: inline-grid; place-items: center;
  width: 44px; height: 44px; border-radius: 6px;
  background: var(--tile); color: var(--tile-fg);
  box-shadow: inset 0 -3px 0 var(--tile-edge), 0 1px 2px rgba(0, 0, 0, .18);
  font-family: var(--display); font-weight: 800; font-size: 24px; text-transform: uppercase; line-height: 1;
  user-select: none;
}
.tile sub { position: absolute; right: 4px; bottom: 4px; font-family: var(--mono); font-size: 9px; font-weight: 700; }
.tile.blank { background: transparent; box-shadow: inset 0 0 0 2px var(--tile-edge); color: var(--muted); font-size: 18px; }

.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 20px; display: grid; gap: 18px; min-width: 0; }

.rack-row { display: flex; gap: 10px; flex-wrap: wrap; }
.rack-input {
  flex: 1 1 260px; min-width: 0;
  font-family: var(--display); font-weight: 800; font-size: 28px; letter-spacing: .12em; text-transform: uppercase;
  padding: 10px 14px; border-radius: 10px; border: 2px solid var(--line); background: var(--bg); color: var(--fg);
}
.rack-input:focus { outline: none; border-color: var(--board); }
.btn {
  font: 700 15px var(--body); padding: 0 18px; min-height: 48px; border-radius: 10px; cursor: pointer;
  border: 2px solid var(--line); background: var(--surface); color: var(--fg);
}
.btn:hover { background: var(--chip-hover); }
.btn.primary { background: var(--board); border-color: var(--board); color: var(--board-fg); }
.btn.primary:hover { filter: brightness(1.1); }
.btn:focus-visible, .chip:focus-visible, select:focus-visible, input:focus-visible, .seg button:focus-visible, .more:focus-visible, .logo:focus-visible {
  outline: 3px solid var(--blank); outline-offset: 2px;
}

.rack-tiles { display: flex; flex-wrap: wrap; gap: 6px; min-height: 44px; }
.hint { margin: 0; font-size: 14px; color: var(--muted); }
kbd { font-family: var(--mono); font-size: 13px; background: var(--chip); border: 1px solid var(--line); border-radius: 4px; padding: 0 5px; }

.filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.field { display: grid; gap: 4px; min-width: 0; }
.field label { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.field input, .field select {
  font: 500 16px var(--mono); padding: 9px 10px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--bg); color: var(--fg); min-width: 0; width: 100%;
}
.field input { text-transform: lowercase; }
.field select { font-family: var(--body); }
.filters-note { margin: 0; font-size: 13px; color: var(--muted); }

.summary { display: flex; flex-wrap: wrap; gap: 10px 20px; align-items: baseline; justify-content: space-between; }
.summary .count { font-family: var(--display); font-weight: 800; font-size: 22px; font-variant-numeric: tabular-nums; }
.summary .best { color: var(--muted); }
.summary .best b { color: var(--fg); text-transform: uppercase; letter-spacing: .04em; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg button { font: 700 13px var(--body); padding: 7px 12px; border: 0; background: var(--surface); color: var(--muted); cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--board); color: var(--board-fg); }

.groups { display: grid; gap: 22px; }
.group h2 {
  margin: 0 0 10px; display: flex; align-items: center; gap: 10px;
  font-family: var(--display); font-weight: 800; font-size: 18px; text-wrap: balance;
}
.group h2 .badge { font: 700 12px var(--mono); padding: 2px 8px; border-radius: 99px; background: var(--chip); color: var(--muted); border: 1px solid var(--line); }
.words { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex; align-items: baseline; gap: 6px; padding: 6px 10px; border-radius: 8px;
  background: var(--chip); border: 1px solid var(--line); color: var(--fg); cursor: pointer;
  font: 700 16px var(--mono); text-transform: uppercase; letter-spacing: .03em;
}
.chip:hover { background: var(--chip-hover); }
.chip .pts { font-size: 11px; color: var(--muted); font-weight: 500; }
.chip .b { color: var(--blank); text-decoration: underline dotted; text-underline-offset: 3px; }
.chip.copied { border-color: var(--board); }
.more { font: 700 14px var(--body); background: none; border: 0; color: var(--board); cursor: pointer; padding: 6px 2px; }
.empty { color: var(--muted); padding: 24px 0; text-align: center; margin: 0; }

.legend { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 13px; color: var(--muted); }
.legend .b { color: var(--blank); font-family: var(--mono); font-weight: 700; text-decoration: underline dotted; }

.prose { max-width: 68ch; padding-inline: 4px; }
.prose h2 { font-family: var(--display); font-weight: 800; font-size: 24px; margin: 8px 0 8px; text-wrap: balance; }
.prose h3 { font-family: var(--display); font-weight: 800; font-size: 17px; margin: 18px 0 4px; }
.prose p { margin: 0; color: var(--fg); }

footer { border-top: 1px solid var(--line); padding-top: 16px; }
footer p { margin: 0; font-size: 13px; color: var(--muted); }
footer a { color: inherit; }

.def {
  width: min(560px, calc(100vw - 32px)); max-height: min(80vh, 640px);
  padding: 0; border: 1px solid var(--line); border-radius: 14px;
  background: var(--surface); color: var(--fg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .3);
}
.def[open] { display: flex; flex-direction: column; }
.def::backdrop { background: rgba(8, 20, 15, .55); }
.def-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding: 20px 20px 12px; border-bottom: 1px solid var(--line); }
.def-word { margin: 0; font-family: var(--display); font-weight: 800; font-size: 30px; line-height: 1.1; text-transform: uppercase; letter-spacing: .04em; overflow-wrap: anywhere; }
.def-word .b { color: var(--blank); text-decoration: underline dotted; text-underline-offset: 5px; }
.def-meta { margin-top: 4px; font: 500 14px var(--mono); color: var(--muted); white-space: pre-wrap; }
.def-close { flex: none; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line); background: var(--chip); color: var(--fg); font-size: 22px; line-height: 1; cursor: pointer; }
.def-close:hover { background: var(--chip-hover); }
.def-body { padding: 14px 20px; overflow-y: auto; display: grid; gap: 16px; min-height: 80px; align-content: start; }
.def-body .pos { margin: 0 0 6px; font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--board); }
.def-body ol { margin: 0; padding-left: 22px; display: grid; gap: 8px; }
.def-body .ex { display: block; margin-top: 2px; color: var(--muted); font-style: italic; }
.def-body .note { margin: 0; color: var(--muted); }
.bases { display: flex; flex-wrap: wrap; gap: 8px; }
.base-link {
  font: 700 14px var(--body); padding: 6px 12px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--line); background: var(--chip); color: var(--fg);
}
.base-link:hover { background: var(--chip-hover); }
.base-link:focus-visible { outline: 3px solid var(--blank); outline-offset: 2px; }
.def-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; padding: 14px 20px 18px; border-top: 1px solid var(--line); }
.def-link { color: var(--board); font-weight: 700; font-size: 14px; }
.def-close:focus-visible, .def-link:focus-visible { outline: 3px solid var(--blank); outline-offset: 2px; }
@media (prefers-color-scheme: dark) { .def-link, .def-body .pos { color: var(--blank); } }

@media (max-width: 480px) {
  .tile { width: 36px; height: 36px; font-size: 20px; }
  .logo .tile { width: 26px; height: 26px; font-size: 15px; }
  .rack-input { font-size: 22px; }
  .panel { padding: 16px; }
}