/* Cryptogram. The top part is the shared paper-and-ink look of the other sections (copied from
   ../hangman/styles.css: header, intro, tabs, buttons, article, footer); the puzzle is at the bottom. */
:root {
  --paper: #faf8f2;
  --ink: #292d28;
  --muted: #697064;
  --line: #dfdfd3;
  --accent: #bd5f3e;
  --teal: #24878b;
  --pad: #fffdf8;
  --dot: #d5d3c4;
  --ink-mark: #bd5f3e;
  --display: ui-rounded, "SF Pro Rounded", "Hiragino Maru Gothic ProN", "Arial Rounded MT Bold", system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #1b1d1a; --ink: #ecebe3; --muted: #a3a898; --line: #3a3d36;
    --accent: #e27f5a; --teal: #58b9bd; --pad: #232621; --dot: #3d4138; --ink-mark: #e27f5a;
  }
}
:root[data-theme="dark"] {
  --paper: #1b1d1a; --ink: #ecebe3; --muted: #a3a898; --line: #3a3d36;
  --accent: #e27f5a; --teal: #58b9bd; --pad: #232621; --dot: #3d4138; --ink-mark: #e27f5a;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.6 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-tap-highlight-color: transparent;
}
a { color: inherit; }
button { font: inherit; color: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--teal); outline-offset: 4px; }
.wrap { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }

/* ---------- header ---------- */
.site-header {
  display: flex; align-items: center; gap: 20px;
  padding: 20px 0; border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; text-decoration: none; white-space: nowrap; }
.crumbs { flex: 1; color: var(--muted); font-size: 15px; min-width: 0; }
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.crumbs .sep { margin: 0 8px; color: var(--line); }
.crumbs [aria-current] { color: var(--ink); }
.theme-btn {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line);
  background: transparent; display: grid; place-items: center; cursor: pointer;
}
.theme-btn:hover { border-color: var(--ink); }
.theme-btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linejoin: round; }
.langs { display: flex; gap: 2px; }
.langs a { padding: 5px 8px; border-radius: 999px; font-size: 13px; font-weight: 700; letter-spacing: .03em; color: var(--muted); text-decoration: none; }
.langs a:hover { color: var(--ink); }
.langs a[aria-current] { color: var(--ink); background: var(--line); }

/* ---------- intro ---------- */
.intro { padding: 34px 0 22px; }
.intro h1 {
  margin: 0; font-family: var(--display); font-weight: 800;
  font-size: clamp(40px, 6.4vw, 68px); line-height: 1.02; letter-spacing: -0.02em;
}
.lede { margin: 12px 0 0; font-size: 18px; color: var(--muted); max-width: 58ch; }

.durations { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 20px; }
.durations a {
  padding: 7px 16px; border: 1.5px solid var(--line); border-radius: 999px;
  text-decoration: none; font-size: 15px; color: var(--muted);
}
.durations a:hover { border-color: var(--ink); color: var(--ink); }
.durations a[aria-current] { background: var(--ink); border-color: var(--ink); color: var(--paper); font-weight: 600; }

.mode-switch { display: inline-flex; margin: 0 0 18px; border: 1.5px solid var(--ink); border-radius: 999px; overflow: hidden; }
.mode-switch button { border: 0; background: transparent; padding: 8px 18px; cursor: pointer; font-weight: 600; }
.mode-switch button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.stop-row { margin: 14px 0 0; min-height: 0; }
.stop-row:has([hidden]) { margin: 0; }

.challenge {
  margin: 0 0 20px; padding: 12px 16px; border-left: 4px solid var(--accent);
  background: var(--pad); font-weight: 600;
}

.actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 22px; }
.btn {
  padding: 11px 22px; border-radius: 999px; border: 1.5px solid var(--ink);
  background: transparent; cursor: pointer; font-weight: 600;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--ink); color: var(--paper); }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
/* ---------- article ---------- */
.prose { max-width: 70ch; margin: 56px 0 0; font-size: 17px; line-height: 1.7; }
.prose h2 { font-family: var(--display); font-weight: 800; font-size: 28px; line-height: 1.2; margin: 44px 0 10px; letter-spacing: -0.01em; }
.prose h3 { font-size: 19px; margin: 26px 0 6px; }
.prose p { margin: 0 0 14px; }
.prose ul, .prose ol { padding-left: 22px; margin: 0 0 14px; }
.prose li { margin-bottom: 6px; }
.prose a { color: var(--accent); }
.prose table { width: 100%; border-collapse: collapse; font-size: 16px; margin: 0 0 16px; }
.prose th, .prose td { border-bottom: 1px solid var(--line); padding: 9px 12px 9px 0; text-align: left; vertical-align: top; }
.prose th { border-bottom: 2px solid var(--ink); font-weight: 700; }
.prose td:first-child { font-weight: 700; white-space: nowrap; }
.faq details { border-bottom: 1px solid var(--line); padding: 12px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq-answer { padding: 8px 0 0; color: var(--muted); }

/* ---------- footer ---------- */
.site-footer { margin-top: 64px; padding: 22px 0 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 15px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.site-footer a { text-decoration: none; color: var(--ink); }
.site-footer a:hover { color: var(--accent); }
.site-footer a[aria-current] { color: var(--muted); }
.site-footer .footer-site { margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--line); }
.site-footer p { margin: 10px 0 0; }

.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin: 18px 0 0; }
.toolbar .label { color: var(--muted); font-size: 15px; }
.seg { display: inline-flex; border: 1.5px solid var(--ink); border-radius: 999px; overflow: hidden; }
.seg button { border: 0; background: transparent; padding: 7px 14px; cursor: pointer; font-weight: 600; font-variant-numeric: tabular-nums; }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }


/* ---------- small screens (shared) ---------- */
@media (max-width: 760px) {
  .wrap { width: calc(100% - 32px); }
  .site-header { gap: 12px; padding: 14px 0; }
  .crumbs { display: none; }
  .brand { flex: 1; }
  .intro { padding: 24px 0 16px; }
  .lede { font-size: 16px; }
  .durations { flex-wrap: nowrap; overflow-x: auto; margin: 0 -16px 14px; padding: 2px 16px 6px; scrollbar-width: none; }
  .durations::-webkit-scrollbar { display: none; }
  .durations a { white-space: nowrap; flex: none; }
  .prose { font-size: 16px; margin-top: 40px; }
  .prose h2 { font-size: 23px; }
  .prose table { display: block; overflow-x: auto; }
}

/* ---------- cryptogram ---------- */
.btn[disabled] { opacity: .45; cursor: default; }
.btn[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.cg-game { max-width: 900px; }
.cg-top { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; }
.cg-group { display: inline-flex; align-items: center; gap: 10px; }
.cg-group.is-dim { opacity: .6; }
.cg-status { margin: 14px 0 10px; min-height: 1.6em; font-weight: 600; }
.cg-puzzle {
  display: flex; flex-wrap: wrap; gap: 14px 22px; padding: clamp(14px, 3vw, 26px);
  border: 2px solid var(--ink); border-radius: 20px; background: var(--pad);
  user-select: none; -webkit-user-select: none;
}
.cg-w { display: inline-flex; gap: 4px; }
.cg-c {
  display: inline-flex; flex-direction: column; align-items: center; width: clamp(24px, 3.4vw, 34px); padding: 0; margin: 0;
  border: 0; background: transparent; font: inherit; color: inherit; cursor: pointer; border-radius: 6px;
}
.cg-c b {
  display: block; width: 100%; height: 1.45em; line-height: 1.45em; text-align: center; font: 800 clamp(18px, 2.6vw, 24px)/1.45 var(--display);
  border-bottom: 2px solid var(--ink); color: var(--teal);
}
.cg-c i { font-style: normal; font-size: 13px; font-weight: 700; color: var(--muted); letter-spacing: .02em; padding-top: 3px; min-height: 1.4em; font-variant-numeric: tabular-nums; }
.cg-c.is-punct { cursor: default; width: auto; min-width: 8px; }
.cg-c.is-punct b { border-bottom-color: transparent; color: var(--ink); }
.cg-c.is-sel { background: color-mix(in srgb, var(--accent) 22%, transparent); }
.cg-c.is-sel b { border-bottom-color: var(--accent); }
.cg-c.is-given b { color: var(--ink); }
.cg-c.is-wrong b { color: var(--accent); text-decoration: line-through; }
.cg-puzzle.is-solved .cg-c b { color: var(--ink); }
.cg-keys { display: grid; gap: 6px; margin: 16px 0 0; max-width: 620px; }
.cg-krow { display: flex; gap: 6px; justify-content: center; }
.cg-krow button {
  flex: 1 1 0; max-width: 52px; min-height: 46px; border: 1.5px solid var(--ink); border-radius: 10px; background: var(--pad);
  font: 700 18px/1 var(--display); cursor: pointer; touch-action: manipulation;
}
.cg-krow button:hover { border-color: var(--accent); color: var(--accent); }
.cg-krow button.is-used { background: var(--line); border-color: var(--line); color: var(--muted); }
.cg-krow .cg-del { max-width: 76px; flex-grow: 1.5; }
.cg-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 0; }
.cg-result { margin: 18px 0 0; padding: 16px 18px; border-left: 4px solid var(--teal); background: var(--pad); max-width: 70ch; }
.cg-result-quote { margin: 0; font: 700 22px/1.35 var(--display); }
.cg-result-by { margin: 6px 0 0; color: var(--muted); font-style: italic; }
.cg-result-sub { margin: 8px 0 12px; color: var(--muted); }
.cg-bar { margin: 22px 0 0; padding-top: 16px; border-top: 1px solid var(--line); }
.cg-check { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; cursor: pointer; }
.cg-check input { width: 18px; height: 18px; accent-color: var(--ink); }
.cg-freq { margin: 14px 0 0; }
.cg-freq .label { margin: 0 0 8px; font-size: 14px; color: var(--muted); }
.cg-counts { display: flex; flex-wrap: wrap; gap: 6px; }
.cg-counts button {
  display: inline-flex; align-items: baseline; gap: 4px; padding: 4px 9px; border: 1.5px solid var(--line); border-radius: 8px;
  background: transparent; cursor: pointer; font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums;
}
.cg-counts button b { color: var(--ink); font-size: 15px; }
.cg-counts button em { font-style: normal; font-weight: 800; color: var(--teal); }
.cg-counts button[aria-pressed="true"] { border-color: var(--accent); }

/* printable sheets */
.cg-print-bar { margin: 0 0 12px; }
.cg-print-actions { display: flex; gap: 10px; margin: 0 0 20px; }
.cg-sheet { display: grid; gap: 22px; padding: 26px; border: 2px solid var(--ink); border-radius: 20px; background: #fff; color: #222; }
.cg-print-item h3 { margin: 0 0 10px; font-size: 16px; }
.cg-print-item h3 small { font-weight: 400; color: #666; }
.cg-print-q { display: flex; flex-wrap: wrap; gap: 12px 18px; }
.cg-pw { display: inline-flex; gap: 3px; }
.cg-pc { display: inline-flex; flex-direction: column; align-items: center; width: 24px; }
.cg-pc b { display: block; width: 100%; height: 26px; border-bottom: 1.5px solid #222; text-align: center; font: 700 18px/26px var(--display); }
.cg-pc i { font-style: normal; font-size: 12px; font-weight: 700; padding-top: 2px; }
.cg-pc.is-punct { width: auto; }
.cg-pc.is-punct b { border-bottom-color: transparent; }
.cg-answers { margin: 22px 0 0; padding: 18px 26px; border: 1.5px dashed var(--line); border-radius: 16px; }
.cg-answers h2 { margin: 0 0 8px; font: 800 20px/1.2 var(--display); }
.cg-answers ol { margin: 0; padding-left: 20px; }
.cg-answers li { margin-bottom: 6px; }
.cg-by { color: var(--muted); font-style: italic; }
@page { margin: 12mm; }
@media print {
  body[data-tool="print"] .site-header, body[data-tool="print"] .intro, body[data-tool="print"] .durations,
  body[data-tool="print"] .cg-print-bar, body[data-tool="print"] .cg-print-actions, body[data-tool="print"] .prose,
  body[data-tool="print"] .site-footer { display: none !important; }
  body[data-tool="print"] { background: #fff; }
  .cg-sheet { border: 0; padding: 0; gap: 26px; }
  .cg-print-item h3 { margin: 0 0 6px; }
  .cg-print-q { gap: 10px 14px; }
  .cg-pc { width: 21px; }
  .cg-pc b { height: 24px; font-size: 16px; line-height: 24px; }
  .cg-pc i { font-size: 11px; }
  /* four to a page: smaller letters so even four long puzzles fit on one sheet */
  .cg-sheet.per-4 { gap: 18px; }
  .cg-sheet.per-4 .cg-print-q { gap: 8px 12px; }
  .cg-sheet.per-4 .cg-pc { width: 17px; }
  .cg-sheet.per-4 .cg-pc b { height: 20px; font-size: 14px; line-height: 20px; }
  .cg-sheet.per-4 .cg-pc i { font-size: 10px; padding-top: 1px; }
  .cg-print-item { break-inside: avoid; }
  .cg-answers { break-before: page; border: 0; padding: 0; color: #222; }
  .cg-by { color: #555; }
}
@media (max-width: 760px) {
  .cg-puzzle { gap: 12px 14px; padding: 14px; }
  .cg-c { width: 22px; }
  .cg-c b { font-size: 18px; }
  .cg-c i { font-size: 11px; }
  .cg-krow { gap: 4px; }
  .cg-krow button { min-height: 44px; font-size: 16px; border-radius: 8px; }
  .cg-top .seg button, .cg-bar .seg button { padding: 5px 10px; font-size: 14px; }
  .cg-sheet { padding: 16px; }
  .cg-pc { width: 20px; }
}