/* Mancala. 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 board 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; }
}

/* ---------- mancala ---------- */
@media (hover: hover) { .mc-pit.is-playable:hover { box-shadow: inset 0 3px 8px var(--hole-in), 0 0 0 3px var(--accent); transform: translateY(-1px); } }
.btn[disabled] { opacity: .45; cursor: default; }
.btn[disabled]:hover { border-color: var(--ink); color: inherit; }
.mc-bar { margin: 22px 0 0; padding-top: 16px; border-top: 1px solid var(--line); }
.mc-group { display: inline-flex; align-items: center; gap: 10px; }
.vs-friend #firstRow { display: none; }
.mc-game {
  --wood: #e8d7b4; --wood-edge: #b88a55; --hole: #d6bf93; --hole-in: rgba(70, 45, 15, .28);
  max-width: 900px;
}
:root[data-theme="dark"] .mc-game { --wood: #5b4630; --wood-edge: #8d6a43; --hole: #4a3826; --hole-in: rgba(0, 0, 0, .45); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .mc-game { --wood: #5b4630; --wood-edge: #8d6a43; --hole: #4a3826; --hole-in: rgba(0, 0, 0, .45); } }
.mc-name { margin: 0 0 8px; color: var(--muted); font-size: 15px; transition: color .2s; }
.mc-name span { font-weight: 700; color: var(--muted); }
.mc-name small { font-size: 13px; }
.mc-name-bottom { margin: 8px 0 0; }
.mc-game.turn-top .mc-name-top span, .mc-game.turn-bottom .mc-name-bottom span { color: var(--accent); }
.mc-board {
  display: grid; grid-template-columns: 1.15fr repeat(6, minmax(0, 1fr)) 1.15fr; grid-template-rows: auto auto;
  grid-template-areas: "sl t0 t1 t2 t3 t4 t5 sr" "sl b0 b1 b2 b3 b4 b5 sr";
  gap: clamp(5px, 1.3vw, 14px); padding: clamp(8px, 1.8vw, 20px);
  background: var(--wood); border: 2px solid var(--wood-edge); border-radius: clamp(28px, 6vw, 70px);
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, .35), 0 6px 18px rgba(60, 40, 15, .18);
  user-select: none; -webkit-user-select: none; touch-action: manipulation;
}
.mc-pit {
  position: relative; aspect-ratio: 1; border-radius: 50%; border: 0; padding: 0; cursor: default;
  background: var(--hole); box-shadow: inset 0 3px 8px var(--hole-in);
  transition: box-shadow .15s, transform .15s;
}
.mc-pit.mc-store { aspect-ratio: auto; border-radius: 999px; grid-row: 1 / span 2; }
.mc-pit:disabled { opacity: 1; }
.mc-pit.is-playable { cursor: pointer; box-shadow: inset 0 3px 8px var(--hole-in), 0 0 0 2px color-mix(in srgb, var(--accent) 45%, transparent); }
.mc-pit.is-playable:focus-visible { box-shadow: inset 0 3px 8px var(--hole-in), 0 0 0 3px var(--accent); transform: translateY(-1px); }
.mc-pit.is-hint { box-shadow: inset 0 3px 8px var(--hole-in), 0 0 0 4px var(--teal); animation: hint 1.2s ease-in-out infinite; }
@keyframes hint { 50% { box-shadow: inset 0 3px 8px var(--hole-in), 0 0 0 7px color-mix(in srgb, var(--teal) 40%, transparent); } }
.mc-pit.is-drop { box-shadow: inset 0 3px 8px var(--hole-in), 0 0 0 3px #f0c75e; }
.mc-pit.is-lift { box-shadow: inset 0 3px 8px var(--hole-in), 0 0 0 3px var(--teal); }
.mc-pit.is-last { box-shadow: inset 0 3px 8px var(--hole-in), 0 0 0 2px var(--muted); }
.mc-pit.is-capture { box-shadow: inset 0 3px 8px var(--hole-in), 0 0 0 4px var(--accent); }
.mc-seeds { position: absolute; inset: 8%; pointer-events: none; }
.mc-seeds i {
  position: absolute; width: 15%; aspect-ratio: 1; margin: -7.5% 0 0 -7.5%; border-radius: 50%;
  box-shadow: inset -1px -2px 2px rgba(0, 0, 0, .25), inset 1px 1px 1px rgba(255, 255, 255, .45);
}
.mc-store .mc-seeds i { width: 22%; margin: -11% 0 0 -11%; }
.mc-seeds .c0 { background: #bd5f3e; } .mc-seeds .c1 { background: #24878b; } .mc-seeds .c2 { background: #d8a22a; }
.mc-seeds .c3 { background: #6c8a3c; } .mc-seeds .c4 { background: #7a5ea8; }
.mc-n {
  position: absolute; left: 50%; bottom: -2px; transform: translate(-50%, 50%); pointer-events: none;
  min-width: 1.9em; padding: 1px 6px; border-radius: 999px; background: var(--paper); border: 1px solid var(--wood-edge);
  font: 700 13px/1.3 system-ui, sans-serif; color: var(--ink); font-variant-numeric: tabular-nums;
}
.mc-pit.is-top .mc-n { bottom: auto; top: -2px; transform: translate(-50%, -50%); }
.mc-store .mc-n { bottom: 10%; top: auto; transform: translate(-50%, 0); font-size: 18px; padding: 2px 8px; }
.mc-pit.is-top.mc-store .mc-n { top: auto; }
.mc-status { margin: 14px 0 0; min-height: 1.6em; font-weight: 600; }
.mc-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0 0; }
.mc-result { margin: 18px 0 0; padding: 16px 18px; border-left: 4px solid var(--ink); background: var(--pad); max-width: 70ch; }
.mc-result.is-win { border-left-color: var(--teal); }
.mc-result-head { margin: 0; font: 800 26px/1.2 var(--display); }
.mc-result-sub { margin: 6px 0 12px; color: var(--muted); }
@media (max-width: 760px) {
  .mc-bar { gap: 8px 10px; }
  .mc-bar .label { font-size: 13px; }
  .mc-bar .seg button { padding: 5px 10px; font-size: 14px; }
  .mc-name small { display: none; }
  .mc-n { font-size: 11px; padding: 0 4px; min-width: 1.7em; }
  .mc-store .mc-n { font-size: 14px; }
  .mc-board { border-radius: 26px; }
}
@media (prefers-reduced-motion: reduce) { .mc-pit, .mc-name { transition: none; } .mc-pit.is-hint { animation: none; } }