/* Phone-first: base styles target a ~360px wide touch screen; wider layouts are
   additive via min-width media queries. */
:root {
  --bg: #f6f6fb; --card: #fff; --fg: #1c1b29; --muted: #6b6a80; --line: #dcdcec;
  --accent: #6d5efc; --accent-fg: #fff; --danger: #d33a4a; --win: #f5b301;
  --cell: #fff; --cell-marked: #e5e2ff;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14131c; --card: #1e1d2b; --fg: #ecebf7; --muted: #9a99b3; --line: #35344a;
    --accent: #8b7fff; --accent-fg: #11101a; --cell: #25243a; --cell-marked: #3a3670;
  }
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.4 system-ui, sans-serif;
  min-height: 100dvh; overscroll-behavior-y: contain;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
.top { display: flex; align-items: center; justify-content: space-between; padding: 8px 12px; max-width: 960px; margin: 0 auto; }
.brand { font-weight: 700; font-size: 1.1rem; color: inherit; text-decoration: none; padding: 6px 0; }
.topright { display: flex; align-items: center; gap: 10px; }
.langbtn { min-height: 36px; min-width: 44px; padding: 4px 10px; font-weight: 700; font-size: .85rem; }
.conn { font-size: .8rem; color: var(--muted); }
.conn.bad { color: var(--danger); }
main { max-width: 960px; margin: 0 auto; padding: 0 12px 24px; display: grid; gap: 12px; }
.foot { text-align: center; color: var(--muted); font-size: .75rem; padding: 12px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 12px; }
h1, h2, h3 { margin: 0 0 8px; line-height: 1.2; }
h2 { font-size: 1.1rem; } h3 { font-size: 1rem; }
.muted { color: var(--muted); font-size: .9rem; }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.row.grow > * { flex: 1 1 auto; }
label { display: grid; gap: 4px; font-size: .9rem; color: var(--muted); }
label.inline { display: flex; align-items: center; gap: 10px; min-height: 40px; }
input[type=checkbox] { width: 22px; height: 22px; flex: none; }
/* 16px minimum: iOS Safari zooms the page on focus for anything smaller. */
input[type=text], textarea, select {
  width: 100%; padding: 10px 12px; min-height: 44px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg); color: var(--fg); font: inherit; font-size: 16px;
}
input[type=range] { width: 100%; min-height: 36px; }
button {
  font: inherit; min-height: 44px; padding: 8px 14px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--card); color: var(--fg); cursor: pointer;
}
button.primary { background: var(--accent); color: var(--accent-fg); border-color: transparent; font-weight: 600; }
button.danger { color: var(--danger); }
button.small { min-height: 36px; padding: 4px 10px; font-size: .9rem; }
button:disabled { opacity: .5; cursor: default; }
summary { cursor: pointer; min-height: 40px; display: flex; align-items: center; }
details > summary { list-style-position: inside; }
details[open] > summary { margin-bottom: 8px; }
.layout { display: grid; gap: 12px; grid-template-columns: 1fr; }

/* grid: full-bleed card on phones so cells get every pixel */
.board { container-type: inline-size; width: 100%; max-width: 640px; margin: 0 auto; overflow-x: auto; }
.boardcard { padding: 6px; }
.grid { display: grid; grid-template-columns: repeat(var(--n), 1fr); gap: 3px; }
.cell {
  position: relative; aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 2px; border-radius: 8px; border: 2px solid var(--line); min-height: 0;
  background: var(--cell); color: var(--fg);
  font-size: clamp(9px, calc(100cqw / var(--n) / 5.2), 22px); line-height: 1.12;
  overflow-wrap: anywhere; hyphens: auto; user-select: none; -webkit-user-select: none;
  -webkit-touch-callout: none; overflow: hidden; font-family: inherit;
}
.cell .t { display: block; width: 100%; }
.cell { contain: layout; } /* re-fitting one cell never relayouts the others */
.cell.marked { background: var(--cell-marked); font-weight: 600; }
.cell.free { font-weight: 700; color: var(--accent); }
.cell.empty { color: var(--muted); }
.cell.locked::before { content: "🔒"; position: absolute; left: 2px; top: 1px; font-size: 9px; }
.cell.line { border-color: var(--win); box-shadow: 0 0 0 2px var(--win) inset; }
.cell .dot { position: absolute; right: 3px; bottom: 3px; width: 8px; height: 8px; border-radius: 50%; }
.cell.marked::after { content: ""; position: absolute; inset: 0; background: hsl(var(--h, 250) 80% 55% / .15); pointer-events: none; }
/* wide grids (> 8 columns) keep readable cells and scroll sideways */
.grid.scroll { min-width: calc(var(--n) * 62px); }
.grid.scroll .cell { font-size: 12px; }
button.cell:active { transform: scale(.96); }

/* pack chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; min-height: 40px; border: 1px solid var(--line); border-radius: 999px; color: var(--fg); font-size: .9rem; }
.chip:has(input:checked) { background: var(--cell-marked); border-color: var(--accent); }
.chip input { width: 18px; height: 18px; }

/* edit sheet (field editor) */
dialog.sheet { border: 0; border-radius: 16px; padding: 16px; width: min(92vw, 440px); margin: 8vh auto auto; background: var(--card); color: var(--fg); }
dialog.sheet::backdrop { background: rgb(0 0 0 / .5); }
dialog.sheet form { display: grid; gap: 12px; }

/* library */
.packform { display: grid; gap: 8px; }
.pack { border-top: 1px solid var(--line); padding: 8px 0; display: grid; gap: 6px; }
.pack .items { font-size: .8rem; color: var(--muted); max-height: 5em; overflow: auto; }

/* players */
.players { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.players li { display: flex; align-items: center; gap: 8px; }
.swatch { width: 12px; height: 12px; border-radius: 50%; flex: none; background: hsl(var(--h) 75% 55%); }
.players .n { margin-left: auto; color: var(--muted); font-size: .85rem; white-space: nowrap; }
.banner { text-align: center; font-size: 1.05rem; font-weight: 700; padding: 10px; border-radius: 12px; background: var(--win); color: #231b00; }
.minis { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; }
.mini { display: grid; gap: 4px; font-size: .8rem; }
.mini .g { display: grid; grid-template-columns: repeat(var(--n), 1fr); gap: 2px; }
.mini .g i { aspect-ratio: 1; border-radius: 2px; background: var(--line); }
.mini .g i.on { background: hsl(var(--h) 75% 55%); }
.code { font-family: ui-monospace, monospace; letter-spacing: .15em; font-weight: 700; }
.gamehead { display: grid; gap: 8px; }
.gamehead .titlerow { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.gamehead .titlerow h2 { margin: 0; }
.menu { position: relative; }
.menu > summary { list-style: none; min-width: 44px; justify-content: center; border: 1px solid var(--line); border-radius: 10px; }
.menu > summary::-webkit-details-marker { display: none; }
.menu .pop { display: grid; gap: 8px; padding: 8px 0 0; }
.toast { position: fixed; left: 50%; bottom: calc(20px + env(safe-area-inset-bottom)); transform: translateX(-50%); background: var(--fg); color: var(--bg); padding: 10px 16px; border-radius: 20px; font-size: .95rem; max-width: 90vw; text-align: center; z-index: 10; }
.err { color: var(--danger); font-size: .9rem; }

@media (min-width: 820px) {
  main { padding: 0 16px 32px; gap: 16px; }
  .card { padding: 16px; }
  .boardcard { padding: 12px; }
  .layout { grid-template-columns: 1fr 300px; align-items: start; }
  .grid { gap: 4px; }
}

.recent { display: grid; gap: 4px; margin-top: 8px; }
.recentrow { display: flex; align-items: center; gap: 8px; border-top: 1px solid var(--line); padding: 4px 0; }
.recentrow a { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.recentrow .code { font-size: .8rem; letter-spacing: .1em; }
.editbar { background: var(--accent); color: var(--accent-fg); font-size: .95rem; }

.rerollbar { display: grid; gap: 8px; margin-top: 10px; padding: 0 4px 4px; }