:root{
  --kg-bg: rgba(255,255,255,.02);
  --kg-br: rgba(255,255,255,.08);
  --kg-br2: rgba(255,255,255,.14);

  --kg-shadow: 0 10px 24px rgba(0,0,0,.22);

  --kg-cell: 34px;
  --kg-gap: 2px;

  /* white cells */
  --kg-w-bg: rgba(255,255,255,.04);
  --kg-w-br: rgba(255,255,255,.10);
  --kg-w-br2: rgba(255,255,255,.16);

  /* black clue cells */
  --kg-b-bg: rgba(255,255,255,.02);
  --kg-b-br: rgba(255,255,255,.10);
  --kg-b-diag: rgba(255,255,255,.14);
  --kg-clue: rgba(255,255,255,.72);

  /* selection + highlight */
  --kg-sel: rgba(0,170,255,.48);
  --kg-hl: rgba(0,170,255,.10);

  /* invalid */
  --kg-bad-bg: rgba(255,60,60,.12);
  --kg-bad-br: rgba(255,60,60,.28);

  --kg-num: rgba(255,255,255,.92);
}

/* LIGHT MODE */
:root[data-theme="light"]{
  --kg-bg: rgba(11,15,20,.02);
  --kg-br: rgba(11,15,20,.10);
  --kg-br2: rgba(11,15,20,.16);

  --kg-shadow: 0 10px 22px rgba(0,0,0,.10);

  --kg-w-bg: rgba(255,255,255,.86);
  --kg-w-br: rgba(11,15,20,.12);
  --kg-w-br2: rgba(11,15,20,.16);

  --kg-b-bg: rgba(11,15,20,.04);
  --kg-b-br: rgba(11,15,20,.14);
  --kg-b-diag: rgba(11,15,20,.18);
  --kg-clue: rgba(11,15,20,.70);

  --kg-sel: rgba(0,120,255,.50);
  --kg-hl: rgba(0,120,255,.10);

  --kg-bad-bg: rgba(255,60,60,.16);
  --kg-bad-br: rgba(255,60,60,.34);

  --kg-num: rgba(11,15,20,.92);
}

header.wrap { padding-bottom: 6px; }
main.wrap { padding-top: 6px; }

.card.kgCard { padding: 10px 10px 12px; }
@media (max-width:520px){
  .wrap { padding-left: 10px; padding-right: 10px; }
  .card.kgCard { padding: 8px 8px 10px; }
}

/* H1 tag */
.kgH1Tag{
  opacity: .72;
  font-weight: 800;
  letter-spacing: .01em;
  margin-left: .35rem;
  font-size: .92em;
}
@media (max-width:420px){
  .kgH1Tag{ display:none; }
}

/* Premium tagline pill */
.sub{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  align-items:center;
  gap: .45rem;

  width:100%;
  max-width:none;
  box-sizing:border-box;

  text-align:center;
  margin: 8px 0 0;
  padding: .5rem .75rem;

  font-size: .92rem;
  line-height: 1.15;
  border-radius: 999px;
  letter-spacing: .01em;

  background: rgba(0,0,0,.04);
  border: 1px solid rgba(0,0,0,.06);
}
:root[data-theme="dark"] .sub{
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.10);
}
@media (max-width:520px){
  .sub{ font-size: .86rem; }
}

.kgTopRow{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:10px;
  margin-bottom: 10px;
}

.kgMeta{ display:flex; flex-direction:column; gap:6px; }
.kgModeLine{ font-size: 13px; opacity: .9; }
.kgRule{ font-size: 12px; opacity: .78; max-width: 60ch; }
.kgHint{ font-size: 12px; opacity: .78; max-width: 60ch; }

.kgStats{
  display:flex;
  gap:10px;
  align-items:flex-end;
}
.kgStat{
  text-align:right;
  display:flex;
  flex-direction:column;
  gap:3px;
  min-width: 84px;
}
.kgStatVal{ font-size: 18px; line-height: 1; }

/* mobile: prevent overlap by stacking (this is the fix) */
@media (max-width: 560px){
  .kgTopRow{
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .kgMeta{ width: 100%; }
  .kgStats{
    width: 100%;
    justify-content: space-between;
  }
  .kgStat{
    min-width: 0;
    text-align: center;
  }
  .kgStatVal{ font-size: 16px; }
}

.kgBoardWrap{
  display:flex;
  justify-content:center;
  padding-top: 2px;
  overflow-x: hidden;
}

.kgBoardShell{
  width: min(680px, 100%);
  max-width: 100%;
  padding: 10px;
  border-radius: 18px;
  background: var(--kg-bg);
  border: 1px solid var(--kg-br);
  box-shadow: var(--kg-shadow);
}

.kgGrid{
  display:grid;
  gap: var(--kg-gap);
  grid-template-columns: repeat(var(--kg-w), var(--kg-cell));
  grid-template-rows: repeat(var(--kg-h), var(--kg-cell));
  justify-content:center;
}

.kgCell{
  width: var(--kg-cell);
  height: var(--kg-cell);
  border-radius: 12px;
  position: relative;
  box-sizing:border-box;
}

/* black clue */
.kgBlack{
  background: var(--kg-b-bg);
  border: 1px solid var(--kg-b-br);
  overflow:hidden;
}
.kgBlack::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(135deg,
      transparent 49%,
      var(--kg-b-diag) 50%,
      transparent 51%);
  pointer-events:none;
}
.kgClue{
  position:absolute;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-weight: 900;
  font-size: clamp(9px, calc(var(--kg-cell) * 0.26), 13px);
  line-height: 1;
  opacity: .95;
  color: var(--kg-clue);
  letter-spacing: .01em;
}
.kgClue.down{ top: 6px; left: 6px; }
.kgClue.right{ bottom: 6px; right: 6px; }

/* white input cell */
.kgWhite{
  background: var(--kg-w-bg);
  border: 1px solid var(--kg-w-br);
  cursor:pointer;
  padding:0;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: transform 140ms ease, border-color 140ms ease, box-shadow 140ms ease, background 140ms ease;
}
.kgWhite:hover{ border-color: var(--kg-w-br2); }
.kgWhite:active{ transform: translateY(0.5px) scale(0.995); }

.kgVal{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight: 1000;
  color: var(--kg-num);
  font-size: clamp(14px, calc(var(--kg-cell) * 0.46), 22px);
  letter-spacing: .01em;
}

.kgWhite.sel{
  border-color: var(--kg-sel);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--kg-sel), transparent 55%) inset;
}
.kgWhite.hl{
  background: color-mix(in oklab, var(--kg-hl), transparent 35%);
}

.kgWhite.bad{
  background: var(--kg-bad-bg);
  border-color: var(--kg-bad-br);
  box-shadow: 0 0 0 2px color-mix(in oklab, var(--kg-bad-bg), transparent 40%) inset;
}

.kgPad{
  margin-top: 12px;
  display:flex;
  flex-direction:column;
  gap:10px;
}

.kgPadGrid{
  display:grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 8px;
}
@media (max-width: 520px){
  .kgPadGrid{
    grid-template-columns: repeat(9, minmax(0, 1fr));
    gap: 6px;
  }
}

.kgPadBtn{
  padding: 10px 0;
  border-radius: 14px;
  font-weight: 1000;
  font-size: 14px;
  line-height:1;
}

.kgPadRow{
  display:flex;
  gap:8px;
  justify-content:center;
  flex-wrap:wrap;
}

.kgMiniRow{
  margin-top:10px;
  display:flex;
  gap:10px;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
}

.kgStatsPill{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.10);
  font-size: 13px;
  box-shadow: 0 10px 22px rgba(0,0,0,.10);
}
:root[data-theme="light"] .kgStatsPill{
  background: rgba(255,255,255,.86);
  border-color: rgba(11,15,20,.14);
}

.kgMoreWrap{
  margin-top: 12px;
  display:flex;
  justify-content:center;
}
.kgMoreBtn{
  text-decoration:none;
  padding: 12px 16px;
  border-radius: 16px;
  box-shadow: 0 10px 22px rgba(0,0,0,.10);
  animation: kgMorePulse 2.8s ease-in-out infinite;
}
@keyframes kgMorePulse{
  0%,100%{ transform: translateY(0); }
  50%{ transform: translateY(-1px); }
}

.msg{
  display:none;
  margin: 8px auto 0;
  text-align:center;
  font-weight: 900;
  letter-spacing:.01em;
}

/* Mode pills always 1 row */
.kgCard .modeSeg{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  width: 100%;
}
.kgCard .modeSeg .seg{
  width:100%;
  min-width:0;
  white-space:nowrap;
  padding: 10px 10px;
  font-size: 13px;
}
@media (max-width: 360px){
  .kgCard .modeSeg{ gap:5px; }
  .kgCard .modeSeg .seg{ padding: 9px 8px; font-size: 12.5px; }
}

/* dialogs */
.kgHelpDlg,
.kgWinDlg,
.kgShareDlg{
  padding: 0;
  border: 0;
  background: transparent;
  width: fit-content;
  max-width: calc(100vw - 24px);
  margin: auto;
}
.kgHelpDlg::backdrop,
.kgWinDlg::backdrop,
.kgShareDlg::backdrop{ background: rgba(0,0,0,.55); }
:root[data-theme="light"] .kgHelpDlg::backdrop,
:root[data-theme="light"] .kgWinDlg::backdrop,
:root[data-theme="light"] .kgShareDlg::backdrop{ background: rgba(0,0,0,.35); }

.kgHelp{
  padding: 10px 10px 12px;
  max-width: 560px;
}
.kgHelpScroll{
  max-height: 70vh;
  overflow: auto;
  padding-right: 2px;
}
.kgHelpBox{
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.02);
  border-radius: 12px;
  padding: 9px 10px;
  margin: 8px 0;
}
:root[data-theme="light"] .kgHelpBox{
  border-color: rgba(11,15,20,.12);
  background: rgba(11,15,20,.02);
}
.kgHelpKicker{
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  opacity: .78;
  margin-bottom: 6px;
}
.kgHelpList{ margin:0; padding-left: 18px; }
.kgHelpList li{ margin:5px 0; }
.kgHelpActions{
  display:flex;
  gap:10px;
  justify-content:flex-end;
  flex-wrap:wrap;
  margin-top: 8px;
}

.kgWinActions{
  display:flex;
  gap:10px;
  justify-content:flex-end;
  flex-wrap:wrap;
  margin-top: 12px;
}
.kgPbLine{
  margin-top: 8px;
  font-weight: 900;
  letter-spacing: .01em;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(0,255,140,.10);
  border: 1px solid rgba(0,255,140,.24);
}

@media (prefers-reduced-motion: reduce){
  .kgWhite{ transition:none !important; }
  .kgMoreBtn{ animation:none !important; }
}

/* SEO card spacing polish */
.kgSeoCard .agTipsGrid{ display:grid; gap: 12px; }
@media (min-width:720px){ .kgSeoCard .agTipsGrid{ gap: 14px; } }
.kgSeoCard .agTipCard{
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
}
:root[data-theme="light"] .kgSeoCard .agTipCard{
  border: 1px solid rgba(11,15,20,.10);
  background: rgba(11,15,20,.03);
}