/* ==========================================================================
 * trace/studio.css · Goal100 Learning · Trace & Write Studio page
 * Page shell, home tiles, set grids, games and the grown-up panel
 * (class prefix .ts-). The tracing pad itself is styled by
 * assets/g100-trace.css. Brand tokens with fallbacks; light and dark.
 * ========================================================================== */
.ts-body {
  --ts-ink: var(--g100-ink, #1b1d33);
  --ts-bg: var(--g100-bg, #f5f6fb);
  --ts-card: var(--g100-card, #ffffff);
  --ts-line: var(--g100-line, #dfe2ef);
  --ts-muted: var(--g100-muted, #5d6280);
  --ts-accent: var(--g100-accent, #4338ca);
  --ts-on-accent: #ffffff;
  --ts-teal: var(--g100-accent2, #0f766e);
  --ts-gold: var(--g100-gold, #b7791f);
  --ts-done: var(--g100-done, #15803d);
  --ts-play: #fff7e6;
  --ts-play-line: #f3c56b;
  --ts-soft: #eef0fb;
  margin: 0; color: var(--ts-ink); background: var(--ts-bg);
  font-family: var(--g100-font, "Atkinson Hyperlegible", system-ui, -apple-system, "Segoe UI", sans-serif);
  font-size: 18px; line-height: 1.45; -webkit-text-size-adjust: 100%;
}
@media (prefers-color-scheme: dark) {
  .ts-body {
    --ts-ink: var(--g100-ink, #e8eaf6); --ts-bg: var(--g100-bg, #11131f); --ts-card: var(--g100-card, #1a1d2e);
    --ts-line: var(--g100-line, #2c3047); --ts-muted: var(--g100-muted, #aab0cf); --ts-accent: var(--g100-accent, #a5b4fc);
    --ts-on-accent: #11131f; --ts-teal: var(--g100-accent2, #5eead4); --ts-gold: var(--g100-gold, #f6c560); --ts-done: var(--g100-done, #4ade80);
    --ts-play: #2a2416; --ts-play-line: #7a5a17; --ts-soft: #22263b;
  }
}
.ts-body *, .ts-body *::before, .ts-body *::after { box-sizing: border-box; }
.ts-body [hidden] { display: none !important; }
.ts-skip { position: absolute; left: -999px; top: 0; background: var(--ts-accent); color: var(--ts-on-accent); padding: 12px 16px; border-radius: 0 0 14px 0; z-index: 50; font-weight: 700; }
.ts-skip:focus { left: 0; }

.ts-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 16px; background: var(--ts-card); border-bottom: 2px solid var(--ts-line); position: sticky; top: 0; z-index: 20; }
.ts-brand { display: flex; align-items: center; gap: 10px; min-height: 48px; color: var(--ts-ink); text-decoration: none; font-family: var(--g100-display, "Fraunces", Georgia, serif); font-weight: 700; font-size: 22px; min-width: 0; }
.ts-brand span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ts-logo { flex: 0 0 auto; width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: var(--ts-soft); font-size: 24px; }
.ts-tools { display: flex; gap: 8px; flex: 0 0 auto; }
.ts-app { max-width: 1120px; margin: 0 auto; padding: 16px; outline: none; }
.ts-foot { max-width: 1120px; margin: 0 auto; padding: 4px 16px 28px; color: var(--ts-muted); font-size: 16px; text-align: center; }
.ts-page { display: flex; flex-direction: column; gap: 14px; }

.ts-h1 { margin: 4px 0 0; font-family: var(--g100-display, "Fraunces", Georgia, serif); font-size: clamp(28px, 4.6vw, 40px); line-height: 1.12; }
.ts-h2 { margin: 14px 0 0; font-family: var(--g100-display, "Fraunces", Georgia, serif); font-size: 23px; line-height: 1.2; }
.ts-h3 { margin: 0 0 6px; font-size: 18px; }
.ts-lead { margin: 0; font-size: 20px; color: var(--ts-muted); }
.ts-goal { margin: 0; font-weight: 700; color: var(--ts-accent); }
.ts-hint, .ts-note { margin: 0; color: var(--ts-muted); font-size: 16px; }
.ts-note:empty { display: none; }

.ts-chip, .ts-cta, .ts-back {
  font: inherit; font-weight: 700; min-height: 48px; min-width: 48px; padding: 10px 16px; border-radius: 14px; cursor: pointer;
  border: 2px solid var(--ts-line); background: var(--ts-card); color: var(--ts-ink); text-decoration: none;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; -webkit-tap-highlight-color: transparent;
}
.ts-chip:hover, .ts-back:hover { border-color: var(--ts-accent); }
.ts-chip[aria-pressed="true"] { background: var(--ts-accent); border-color: var(--ts-accent); color: var(--ts-on-accent); }
.ts-cta { background: var(--ts-accent); border-color: var(--ts-accent); color: var(--ts-on-accent); min-height: 60px; font-size: 21px; padding: 12px 22px; box-shadow: 0 4px 0 rgba(27, 29, 51, .22); align-self: flex-start; }
.ts-cta:hover { filter: brightness(1.06); }
.ts-back { align-self: flex-start; }
.ts-danger { border-color: #b4233a; color: #b4233a; }
@media (prefers-color-scheme: dark) { .ts-danger { border-color: #fda4af; color: #fda4af; } }
.ts-body a:focus-visible, .ts-body button:focus-visible, .ts-body input:focus-visible { outline: 3px solid var(--ts-accent); outline-offset: 3px; }

.ts-grades { display: flex; flex-wrap: wrap; gap: 8px; }
.ts-grade { flex: 1 1 0; min-width: 76px; }

/* tiles */
.ts-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(158px, 1fr)); gap: 12px; }
.ts-tile {
  font: inherit; color: var(--ts-ink); text-decoration: none; text-align: left; cursor: pointer;
  display: flex; flex-direction: column; gap: 4px; padding: 12px; min-height: 150px; border-radius: 14px;
  background: var(--ts-card); border: 2px solid var(--ts-line); box-shadow: 0 4px 12px rgba(27, 29, 51, .06);
  transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease;
}
.ts-tile:hover { transform: translateY(-2px); border-color: var(--ts-accent); box-shadow: 0 8px 18px rgba(27, 29, 51, .12); }
.ts-prev { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 0 6px; height: 78px; border-radius: 10px; background: var(--ts-soft); color: var(--ts-accent); overflow: hidden; }
.ts-prev .ts-mini { height: 64px; width: auto; flex: 0 1 auto; min-width: 0; }
.ts-emo { font-size: 30px; line-height: 1; padding: 0 3px; font-family: "Noto Color Emoji", "Apple Color Emoji", "Segoe UI Emoji", sans-serif; }
.ts-emo-big { font-size: 44px; }
.ts-tname { font-weight: 700; font-size: 18px; line-height: 1.2; }
.ts-tsub { color: var(--ts-muted); font-size: 15px; }
.ts-game { background: var(--ts-play); border-color: var(--ts-play-line); }
.ts-game .ts-prev { background: transparent; }
.ts-later { border-style: dashed; }

.ts-refresh { padding: 12px 14px; border-radius: 14px; background: var(--ts-card); border: 2px solid var(--ts-teal); }
.ts-refresh h2 { margin: 0; font-size: 21px; }
.ts-refresh p { margin: 2px 0 10px; color: var(--ts-muted); }
.ts-due { display: flex; flex-wrap: wrap; gap: 8px; }

/* glyph grid */
.ts-ggrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 10px; }
.ts-g {
  position: relative; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 2px;
  min-height: 112px; min-width: 76px; padding: 6px 6px 8px; border-radius: 14px; text-decoration: none; color: var(--ts-ink);
  background: var(--ts-card); border: 2px solid var(--ts-line); transition: transform .14s ease, border-color .14s ease;
}
.ts-g:hover { transform: translateY(-2px); border-color: var(--ts-accent); }
.ts-g .ts-mini { height: 74px; width: 100%; }
.ts-gw { grid-column: span 2; }
.ts-gw .ts-emo { position: absolute; top: 6px; right: 8px; font-size: 22px; }
.ts-stars { font-size: 17px; letter-spacing: 2px; color: var(--ts-muted); line-height: 1; }
.ts-stars.on { color: var(--ts-gold); }
.ts-stars.gold { text-shadow: 0 0 10px rgba(246, 197, 96, .9); }

/* tracing page */
.ts-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.ts-pos { color: var(--ts-muted); font-weight: 700; }
.ts-holder { min-width: 0; }
.ts-cap { margin: 0; padding: 12px 14px; border-radius: 14px; background: var(--ts-card); border: 2px dashed var(--ts-line); font-size: 20px; font-weight: 700; }

/* forms and cards */
.ts-card { background: var(--ts-card); border: 2px solid var(--ts-line); border-radius: 14px; padding: 16px; display: flex; flex-direction: column; gap: 10px; align-items: flex-start; max-width: 640px; }
.ts-label { font-weight: 700; font-size: 20px; }
.ts-input { font: inherit; font-size: 24px; width: 100%; max-width: 420px; min-height: 56px; padding: 10px 14px; border-radius: 14px; border: 2px solid var(--ts-muted); background: var(--ts-card); color: var(--ts-ink); }
.ts-code { font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; font-size: 20px; font-weight: 700; padding: 12px 14px; border-radius: 12px; background: var(--ts-soft); overflow-wrap: anywhere; word-break: break-all; -webkit-user-select: all; user-select: all; }

/* games */
.ts-gamebody { display: flex; flex-direction: column; gap: 14px; }
.ts-board { position: relative; width: min(100%, 540px, calc(100vh - 260px)); min-width: 280px; aspect-ratio: 1 / 1; margin: 0 auto; border-radius: 14px; background: var(--ts-card); border: 2px solid var(--ts-line); color: var(--ts-accent); touch-action: none; }
.ts-board.ts-first { aspect-ratio: 124 / 155; width: min(100%, 440px, calc((100vh - 250px) * 0.8)); touch-action: auto; }
.ts-dotsvg, .ts-firstsvg { position: absolute; inset: 0; width: 100%; height: 100%; }
.ts-dot, .ts-spot {
  position: absolute; width: 44px; height: 44px; margin: -22px 0 0 -22px; border-radius: 50%; padding: 0;
  font: inherit; font-weight: 700; font-size: 18px; cursor: pointer; border: 2px solid var(--ts-accent);
  background: var(--ts-card); color: var(--ts-ink); display: flex; align-items: center; justify-content: center;
}
.ts-dot.ts-next { background: var(--ts-accent); color: var(--ts-on-accent); box-shadow: 0 0 0 5px rgba(99, 102, 241, .28); }
.ts-dot.ts-hit { background: var(--ts-done); border-color: var(--ts-done); color: #fff; }
@media (prefers-color-scheme: dark) { .ts-dot.ts-hit, .ts-spot.ts-hit { color: #11131f; } }
.ts-dot.ts-wig { animation: ts-wig .6s ease; }
.ts-bigemo { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 84px; pointer-events: none; font-family: "Noto Color Emoji", "Apple Color Emoji", "Segoe UI Emoji", sans-serif; }
.ts-won .ts-dot { opacity: .35; }
.ts-spot { width: 48px; height: 48px; margin: -24px 0 0 -24px; border-width: 4px; border-color: var(--ts-teal); background: var(--ts-card); }
.ts-spot::after { content: ""; width: 16px; height: 16px; border-radius: 50%; background: var(--ts-teal); }
.ts-spot.ts-hit { background: var(--ts-done); border-color: var(--ts-done); }
.ts-spot.ts-hit::after { background: #fff; }
.ts-spot.ts-miss { opacity: .4; border-style: dashed; }
.ts-letter { position: absolute; left: 10px; top: 8px; min-width: 44px; height: 44px; padding: 0 8px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: var(--ts-soft); color: var(--ts-ink); font-family: var(--g100-display, "Fraunces", Georgia, serif); font-size: 28px; font-weight: 700; }
.ts-rule { stroke: var(--ts-line); stroke-width: 1; }
.ts-ghost { fill: none; stroke: var(--ts-muted); stroke-width: 6; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: .1 11; opacity: .8; }
.ts-inkpath { fill: none; stroke: var(--ts-accent); stroke-width: 8; stroke-linecap: round; stroke-linejoin: round; }
.ts-acts { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; align-items: center; }
@keyframes ts-wig { 0%, 100% { transform: scale(1); } 30% { transform: scale(1.25); } 60% { transform: scale(.95); } }

/* grown-up panel */
.ts-modal { position: fixed; inset: 0; z-index: 100; background: rgba(17, 19, 31, .6); display: flex; justify-content: center; align-items: flex-start; padding: 12px; overflow: auto; }
.ts-modal-box { width: min(760px, 100%); background: var(--ts-bg); color: var(--ts-ink); border-radius: 18px; padding: 18px; display: flex; flex-direction: column; gap: 14px; box-shadow: 0 20px 60px rgba(0, 0, 0, .35); }
.ts-opt { display: flex; flex-direction: column; gap: 4px; align-items: flex-start; }
.ts-seg { display: flex; flex-wrap: wrap; gap: 8px; }
.ts-alts { display: flex; flex-wrap: wrap; gap: 12px; }
.ts-altpair { gap: 4px; padding: 4px; border-radius: 16px; background: var(--ts-soft); }
.ts-altb { padding: 2px; width: 56px; height: 68px; }
.ts-altb .ts-mini { width: 44px; height: 60px; }
.ts-std { margin: 0; padding-left: 20px; font-size: 16px; display: flex; flex-direction: column; gap: 6px; }
.ts-std small { color: var(--ts-muted); overflow-wrap: anywhere; }

@media (max-width: 480px) {
  .ts-body { font-size: 17px; }
  .ts-top { padding: 8px 12px; }
  #ts-gear-t { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .ts-brand { font-size: 18px; }
  .ts-logo { width: 40px; height: 40px; font-size: 21px; }
  .ts-app { padding: 12px; }
  .ts-chip { padding: 8px 12px; }
  .ts-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .ts-ggrid { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: 8px; }
  .ts-cta { align-self: stretch; }
  .ts-tname { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) {
  .ts-tile, .ts-g { transition: none; }
  .ts-tile:hover, .ts-g:hover { transform: none; }
  .ts-dot.ts-wig { animation: none; outline: 4px solid var(--ts-gold); }
}