/* /sumglyph/sumglyph.css */
/* SumGlyph — premium game CSS (assumes /style-test.css provides base tokens + .wrap/.card/.seg styles) */

:root{
  --sg-board-max: 520px;

  --sg-board-bgA: rgba(120,160,255,.14);
  --sg-board-bgB: rgba(0,255,140,.10);

  --sg-tile-bg: rgba(255,255,255,.06);
  --sg-tile-br: rgba(255,255,255,.14);
  --sg-tile-br2: rgba(255,255,255,.22);
  --sg-tile-shadow: 0 12px 26px rgba(0,0,0,.28);

  --sg-glowA: rgba(120,160,255,.22);
  --sg-glowB: rgba(0,255,140,.18);
  --sg-warn: rgba(255,90,120,.95);

  --sg-thread: rgba(255,255,255,.30);
  --sg-thread-light: rgba(11,15,20,.22);

  /* NEW: stronger selection colors */
  --sg-selA: rgba(120,160,255,.36);
  --sg-selB: rgba(0,255,140,.30);
}

:root[data-theme="light"]{
  --sg-board-bgA: rgba(0,120,255,.10);
  --sg-board-bgB: rgba(0,160,90,.07);

  --sg-tile-bg: rgba(11,15,20,.03);
  --sg-tile-br: rgba(11,15,20,.14);
  --sg-tile-br2: rgba(11,15,20,.18);
  --sg-tile-shadow: 0 10px 22px rgba(0,0,0,.10);

  --sg-thread: var(--sg-thread-light);

  /* NEW: selection colors tuned for light mode */
  --sg-selA: rgba(0,95,255,.30);
  --sg-selB: rgba(0,170,95,.26);
}

/* Premium tagline pill */
header.wrap { padding-bottom: 6px; }
main.wrap { padding-top: 6px; }

.sub{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  font-size: .92rem;
  line-height: 1.15;
  padding: .35rem .6rem;
  border-radius: 999px;
  letter-spacing: .01em;
  background: rgba(0,0,0,.04);
  border: 1px solid rgba(0,0,0,.06);
  max-width: 46ch;
  text-wrap: balance;
  margin: 8px auto 0;
}
: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; max-width: 34ch; }
}

/* Card layout */
.card.sgCard{ padding: 12px 12px 14px; }
@media (max-width:520px){
  .wrap { padding-left: 10px; padding-right: 10px; }
  .card.sgCard { padding: 10px 10px 12px; }
}

.sgTopRow{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.sgMeta{ display:flex; flex-direction:column; gap: 8px; min-width: 260px; }
.sgModeLine{ font-size: 13px; opacity: .9; }

.sgRule{
  font-size: 12px;
  opacity: .78;
  max-width: 60ch;
}

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

/* Pills row */
.sgPills{
  display:flex;
  gap: 10px;
  align-items:center;
  flex-wrap: wrap;
}
.sgPill{
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 900;
  letter-spacing: .01em;
}
:root[data-theme="light"] .sgPill{
  border-color: rgba(11,15,20,.12);
  background: rgba(11,15,20,.02);
}
.sgTarget{ border-color: color-mix(in oklab, var(--sg-glowA), transparent 60%); }
.sgSum{ min-width: 118px; text-align:center; }
.sgSum.ok{
  border-color: color-mix(in oklab, var(--sg-glowB), transparent 55%);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--sg-glowB), transparent 72%);
}
.sgSum.over{
  border-color: rgba(255,90,120,.30);
}

.sgClearBtn{ font-weight: 900; }
.sgClearBtn:not([disabled]){
  border-color: color-mix(in oklab, var(--sg-glowB), transparent 55%);
  box-shadow: 0 10px 22px rgba(0,0,0,.10);
}

/* Stats */
.sgStats{
  display:flex;
  gap: 10px;
  align-items:flex-end;
}
.sgStat{
  text-align:right;
  display:flex;
  flex-direction:column;
  gap: 3px;
  min-width: 78px;
}
.sgStatVal{
  font-size: 18px;
  line-height: 1;
}

/* Status row */
.sgStatusRow{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap: 10px;
  margin-top: 6px;
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,.08);
}
:root[data-theme="light"] .sgStatusRow{
  border-top-color: rgba(11,15,20,.10);
}
.sgSeed{
  font-size: 12px;
  opacity: .75;
  user-select: text;
}
.msg{ font-size: 14px; font-weight: 700; }
.msg[data-kind="ok"],
.msg[data-kind="win"]{ color: rgba(0,255,140,.85); }
.msg[data-kind="hint"]{ color: var(--sg-warn); }

/* Board */
.sgBoardWrap{
  display:flex;
  justify-content:center;
  padding-top: 2px;
}
.sgBoard{
  position: relative;
  width: clamp(290px, 92vw, var(--sg-board-max));
  aspect-ratio: 1 / 1;
  border-radius: 18px;
  user-select: none;
  touch-action: none;

  background:
    radial-gradient(140% 110% at 18% 12%, var(--sg-board-bgA), transparent 60%),
    radial-gradient(140% 120% at 92% 18%, var(--sg-board-bgB), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
  border: 1px solid rgba(255,255,255,.10);
  overflow: hidden;
  box-shadow: 0 18px 60px rgba(0,0,0,.22);
}
:root[data-theme="light"] .sgBoard{
  border-color: rgba(11,15,20,.10);
  box-shadow: 0 18px 55px rgba(11,15,20,.12);
  background:
    radial-gradient(140% 110% at 18% 12%, var(--sg-board-bgA), transparent 60%),
    radial-gradient(140% 120% at 92% 18%, var(--sg-board-bgB), transparent 55%),
    linear-gradient(180deg, rgba(11,15,20,.02), rgba(11,15,20,.01));
}

/* Thread */
.sgThread{
  position:absolute;
  inset:0;
  pointer-events:none;
  z-index: 5;
}
.sgThread path{
  fill:none;
  stroke: var(--sg-thread);
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 10px 18px rgba(0,0,0,.25));
  opacity: 0;
  transition: opacity 120ms ease;
}
.sgBoard.hasThread .sgThread path{ opacity: .9; }

/* Win sweep */
.sgWinSweep{
  position:absolute;
  inset:-20%;
  background: linear-gradient(110deg, transparent 30%, rgba(0,255,140,.10) 45%, transparent 60%);
  transform: translateX(-60%);
  pointer-events:none;
  opacity: 0;
}
.sgBoard.sgWin .sgWinSweep{
  opacity: 1;
  animation: sgSweep .9s ease-out 1;
}
@keyframes sgSweep{
  0%{ transform: translateX(-70%); opacity: 0; }
  15%{ opacity: .85; }
  100%{ transform: translateX(70%); opacity: 0; }
}

/* Tiles */
.sgTile{
  position:absolute;
  display:flex;
  align-items:center;
  justify-content:center;

  border-radius: 16px;
  background: var(--sg-tile-bg);
  border: 1px solid var(--sg-tile-br);
  box-shadow: var(--sg-tile-shadow);

  font-weight: 950;
  letter-spacing: -.02em;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;

  transform: translate3d(0,0,0);
  transition: transform 180ms cubic-bezier(.2,.9,.2,1), box-shadow 180ms ease, border-color 180ms ease, background 180ms ease, opacity 180ms ease;
}
.sgTile:hover{ border-color: var(--sg-tile-br2); }
.sgTile:active{
  transform: translate3d(var(--x,0px), var(--y,0px), 0) scale(.985);
}
.sgTile::after{
  content:"";
  position:absolute;
  inset: 10%;
  border-radius: 12px;
  background: radial-gradient(120% 120% at 35% 25%, rgba(255,255,255,.14), transparent 55%);
  opacity: .55;
  pointer-events:none;
}
:root[data-theme="light"] .sgTile::after{
  background: radial-gradient(120% 120% at 35% 25%, rgba(255,255,255,.60), transparent 60%);
  opacity: .35;
}

/* ✅ NEW: selection is VERY obvious */
.sgTile.sel{
  background: color-mix(in oklab, var(--sg-selA), var(--sg-tile-bg) 70%);
  border-color: color-mix(in oklab, var(--sg-selA), rgba(255,255,255,.0) 40%);
  box-shadow:
    0 0 0 4px color-mix(in oklab, var(--sg-selA), transparent 65%),
    0 18px 40px rgba(0,0,0,.22),
    var(--sg-tile-shadow);
  z-index: 6;
  outline: 2px solid color-mix(in oklab, var(--sg-selA), transparent 35%);
  outline-offset: 0px;
}
.sgTile.sel::before{
  content:"";
  position:absolute;
  inset:-2px;
  border-radius: 18px;
  background: radial-gradient(120% 120% at 30% 20%, color-mix(in oklab, var(--sg-selA), transparent 40%), transparent 60%);
  opacity: .95;
  pointer-events:none;
}
:root[data-theme="light"] .sgTile.sel::before{
  opacity: .55;
}

/* ✅ NEW: when valid, go GREEN and even stronger */
.sgTile.sel.ok{
  background: color-mix(in oklab, var(--sg-selB), var(--sg-tile-bg) 70%);
  border-color: color-mix(in oklab, var(--sg-selB), transparent 35%);
  box-shadow:
    0 0 0 4px color-mix(in oklab, var(--sg-selB), transparent 60%),
    0 18px 40px rgba(0,0,0,.20),
    var(--sg-tile-shadow);
  outline: 2px solid color-mix(in oklab, var(--sg-selB), transparent 25%);
}
.sgTile.sel.ok::before{
  background: radial-gradient(120% 120% at 30% 20%, color-mix(in oklab, var(--sg-selB), transparent 40%), transparent 60%);
}

/* Pop */
.sgTile.pop{
  opacity: 0;
  transform: translate3d(var(--x,0px), var(--y,0px), 0) scale(.86);
}

/* Over-shake */
.sgBoard.sgOver{ animation: sgShake .18s ease-in-out 2; }
@keyframes sgShake{
  0%,100%{ transform: translateX(0); }
  50%{ transform: translateX(2px); }
}
.sgBoard.sgWin{
  border-color: color-mix(in oklab, var(--sg-glowB), transparent 55%);
  box-shadow: 0 0 0 3px rgba(0,255,140,.10), 0 18px 60px rgba(0,0,0,.22);
}

/* Bottom bar */
.sgBottomBar{
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,.08);
}
:root[data-theme="light"] .sgBottomBar{
  border-top-color: rgba(11,15,20,.10);
}
.sgControlsRow{
  display:flex;
  gap: 8px;
  justify-content:center;
  flex-wrap:wrap;
}
.sgHintRow{
  margin-top: 10px;
  font-size: 12.5px;
  opacity: .85;
  text-align:center;
}

/* “Play more games” CTA */
.agMoreWrap{ margin-top: 12px; display:flex; justify-content:center; }
.agMoreBtn{
  text-decoration:none;
  padding: 12px 16px;
  border-radius: 16px;
  box-shadow: 0 10px 22px rgba(0,0,0,.10);
  animation: agMorePulse 2.8s ease-in-out infinite;
}
@keyframes agMorePulse{
  0%,100%{ transform: translateY(0); }
  50%{ transform: translateY(-1px); }
}
@media (prefers-reduced-motion: reduce){
  .agMoreBtn{ animation: none !important; }
  .sgBoard.sgOver{ animation: none !important; }
  .sgTile{ transition: none !important; }
}

/* Learn grid */
.learnGrid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.learnStep{ padding: 12px; border-radius: 12px; border: 1px solid rgba(255,255,255,.10); background: rgba(255,255,255,.02); }
:root[data-theme="light"] .learnStep{ border-color: rgba(11,15,20,.12); background: rgba(11,15,20,.02); }
.learnH3{ margin: 0 0 6px; font-size: 14px; font-weight: 900; }
.learnP{ margin: 0; font-size: 13px; opacity: .85; }

/* Dialogs */
html.dlgOpen body{ overflow:hidden; }
dialog.sgDlg{ border:none; padding:0; background:transparent; max-width:none; }
dialog.sgDlg[open]{ display:flex; align-items:center; justify-content:center; }
dialog.sgDlg::backdrop{ background: rgba(0,0,0,.55); }
:root[data-theme="light"] dialog.sgDlg::backdrop{ background: rgba(0,0,0,.35); }

.sgHelpHero{
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.02);
  border-radius: 14px;
  padding: 12px;
}
:root[data-theme="light"] .sgHelpHero{
  border-color: rgba(11,15,20,.12);
  background: rgba(11,15,20,.02);
}
.sgHelpMiniRow{ margin-top: 10px; display:flex; gap: 8px; flex-wrap:wrap; }
.sgHelpActions{ display:flex; justify-content:flex-end; gap:10px; margin-top: 12px; }