/* ============================================================
   Sort-into-groups exercise engine — shared styles
   Palm-leaf-manuscript theme, light + dark, 2–8 groups.
   Consumed by drills (public/lila/sort/<slug>/index.html)
   and by the in-browser generator.
   ============================================================ */

.sortx {
  --ground: #f3ecdb;
  --panel: #faf5e8;
  --ink: #2a2118;
  --ink-soft: #6b5d47;
  --line: #d9cba8;
  --accent: #a8451f;
  --good: #3f7d3f;
  --bad: #b23b2e;
  --shadow: 0 1px 2px rgba(60,45,20,.12), 0 6px 18px rgba(60,45,20,.10);
  --radius: 10px;
  --serif: "Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --sans: "Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  --deva: "Noto Sans Devanagari","Nirmala UI","Kohinoor Devanagari","Mangal",var(--serif);

  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.5;
}

/* ---- group palettes (0–7); first three keep gender colours ---- */
.sortx .bucket.grp-0 { --grp:#6f8f4a; --grp-bg:#e7edd4; --grp-ink:#3f5321; }
.sortx .bucket.grp-1 { --grp:#c9962e; --grp-bg:#f5e9c8; --grp-ink:#74521a; }
.sortx .bucket.grp-2 { --grp:#b5622e; --grp-bg:#f2ddca; --grp-ink:#6e3617; }
.sortx .bucket.grp-3 { --grp:#4f6d9c; --grp-bg:#dde5f2; --grp-ink:#2b3d5c; }
.sortx .bucket.grp-4 { --grp:#8a5a8f; --grp-bg:#ecdcee; --grp-ink:#4d2c52; }
.sortx .bucket.grp-5 { --grp:#3f8f86; --grp-bg:#d6ece8; --grp-ink:#1f4f49; }
.sortx .bucket.grp-6 { --grp:#b1506b; --grp-bg:#f3d9e1; --grp-ink:#6b2438; }
.sortx .bucket.grp-7 { --grp:#7a7d3f; --grp-bg:#e9ead0; --grp-ink:#45471f; }

@media (prefers-color-scheme: dark) {
  .sortx {
    --ground:#1c1712; --panel:#26201a; --ink:#efe6d4; --ink-soft:#b3a488;
    --line:#423628; --accent:#e07a4e; --good:#7cc17c; --bad:#e0796c;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 22px rgba(0,0,0,.35);
  }
  .sortx .bucket.grp-0 { --grp:#8fae5f; --grp-bg:#2c3620; --grp-ink:#bcd08e; }
  .sortx .bucket.grp-1 { --grp:#d9a740; --grp-bg:#3a2f16; --grp-ink:#e9c876; }
  .sortx .bucket.grp-2 { --grp:#cf7440; --grp-bg:#3a2415; --grp-ink:#e2a271; }
  .sortx .bucket.grp-3 { --grp:#7fa0cf; --grp-bg:#22303f; --grp-ink:#b9cdea; }
  .sortx .bucket.grp-4 { --grp:#b98cbd; --grp-bg:#3a2440; --grp-ink:#e0c4e4; }
  .sortx .bucket.grp-5 { --grp:#5fb4a9; --grp-bg:#1f3835; --grp-ink:#9fdcd2; }
  .sortx .bucket.grp-6 { --grp:#d98aa0; --grp-bg:#3a2029; --grp-ink:#ecc0cd; }
  .sortx .bucket.grp-7 { --grp:#adb072; --grp-bg:#34351f; --grp-ink:#d9dba0; }
}

/* explicit theme toggles win over the media query in both directions */
:root[data-theme="light"] .sortx {
  --ground:#f3ecdb; --panel:#faf5e8; --ink:#2a2118; --ink-soft:#6b5d47;
  --line:#d9cba8; --accent:#a8451f; --good:#3f7d3f; --bad:#b23b2e;
  --shadow: 0 1px 2px rgba(60,45,20,.12), 0 6px 18px rgba(60,45,20,.10);
}
:root[data-theme="light"] .sortx .bucket.grp-0 { --grp:#6f8f4a; --grp-bg:#e7edd4; --grp-ink:#3f5321; }
:root[data-theme="light"] .sortx .bucket.grp-1 { --grp:#c9962e; --grp-bg:#f5e9c8; --grp-ink:#74521a; }
:root[data-theme="light"] .sortx .bucket.grp-2 { --grp:#b5622e; --grp-bg:#f2ddca; --grp-ink:#6e3617; }
:root[data-theme="light"] .sortx .bucket.grp-3 { --grp:#4f6d9c; --grp-bg:#dde5f2; --grp-ink:#2b3d5c; }
:root[data-theme="light"] .sortx .bucket.grp-4 { --grp:#8a5a8f; --grp-bg:#ecdcee; --grp-ink:#4d2c52; }
:root[data-theme="light"] .sortx .bucket.grp-5 { --grp:#3f8f86; --grp-bg:#d6ece8; --grp-ink:#1f4f49; }
:root[data-theme="light"] .sortx .bucket.grp-6 { --grp:#b1506b; --grp-bg:#f3d9e1; --grp-ink:#6b2438; }
:root[data-theme="light"] .sortx .bucket.grp-7 { --grp:#7a7d3f; --grp-bg:#e9ead0; --grp-ink:#45471f; }

:root[data-theme="dark"] .sortx {
  --ground:#1c1712; --panel:#26201a; --ink:#efe6d4; --ink-soft:#b3a488;
  --line:#423628; --accent:#e07a4e; --good:#7cc17c; --bad:#e0796c;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 22px rgba(0,0,0,.35);
}
:root[data-theme="dark"] .sortx .bucket.grp-0 { --grp:#8fae5f; --grp-bg:#2c3620; --grp-ink:#bcd08e; }
:root[data-theme="dark"] .sortx .bucket.grp-1 { --grp:#d9a740; --grp-bg:#3a2f16; --grp-ink:#e9c876; }
:root[data-theme="dark"] .sortx .bucket.grp-2 { --grp:#cf7440; --grp-bg:#3a2415; --grp-ink:#e2a271; }
:root[data-theme="dark"] .sortx .bucket.grp-3 { --grp:#7fa0cf; --grp-bg:#22303f; --grp-ink:#b9cdea; }
:root[data-theme="dark"] .sortx .bucket.grp-4 { --grp:#b98cbd; --grp-bg:#3a2440; --grp-ink:#e0c4e4; }
:root[data-theme="dark"] .sortx .bucket.grp-5 { --grp:#5fb4a9; --grp-bg:#1f3835; --grp-ink:#9fdcd2; }
:root[data-theme="dark"] .sortx .bucket.grp-6 { --grp:#d98aa0; --grp-bg:#3a2029; --grp-ink:#ecc0cd; }
:root[data-theme="dark"] .sortx .bucket.grp-7 { --grp:#adb072; --grp-bg:#34351f; --grp-ink:#d9dba0; }

/* ---- layout ---- */
.sortx * { box-sizing: border-box; }

.sortx .task {
  font-size: 16px; color: var(--ink-soft); margin: 0 0 18px; max-width: 62ch;
}

.sortx .toolbar {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 0 0 20px;
}
.sortx button {
  font-family: var(--sans); font-size: 14px; font-weight: 600;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink);
  padding: 9px 16px; border-radius: 999px; cursor: pointer;
  box-shadow: var(--shadow); transition: transform .08s ease, border-color .15s ease, background .15s ease;
}
.sortx button:hover { border-color: var(--accent); }
.sortx button:active { transform: translateY(1px); }
.sortx button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sortx button.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.sortx button.ghost { background: transparent; box-shadow: none; }
.sortx .spacer { flex: 1 1 auto; }
.sortx .score {
  font-variant-numeric: tabular-nums; font-weight: 600; font-size: 14px;
  color: var(--ink-soft); white-space: nowrap;
}

.sortx .board { display: grid; gap: 16px; grid-template-columns: repeat(var(--cols, 3), 1fr); }
@media (max-width: 760px) { .sortx .board { grid-template-columns: 1fr; } }

.sortx .bucket {
  background: var(--grp-bg); color: var(--grp-ink);
  border-radius: var(--radius); padding: 14px 14px 18px; min-height: 150px;
  border: 1.5px dashed transparent; transition: border-color .12s;
}
.sortx .bucket.over { border-color: var(--grp); }
.sortx .bucket h2 { font-family: var(--serif); font-size: 18px; margin: 0 0 3px; font-weight: 600; text-wrap: balance; }
.sortx .bucket .sub { font-size: 12px; letter-spacing: .04em; opacity: .82; margin: 0 0 12px; }
.sortx .bucket img.grp-img { max-width: 100%; height: auto; border-radius: 6px; margin: 0 0 10px; display: block; }
.sortx .drop { display: flex; flex-wrap: wrap; gap: 8px; min-height: 60px; align-content: flex-start; }

.sortx .tray {
  margin-top: 20px; background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow);
}
.sortx .tray-label {
  font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-soft); font-weight: 600; margin: 0 0 12px;
}
.sortx .tray .drop { min-height: 54px; }

.sortx .card {
  position: relative; user-select: none; cursor: grab;
  background: var(--panel); border: 1px solid var(--line); border-radius: 8px;
  padding: 9px 14px 7px; box-shadow: var(--shadow); text-align: center;
  min-width: 72px; transition: box-shadow .12s, border-color .12s, opacity .12s;
}
.sortx .card:hover { border-color: var(--accent); }
.sortx .card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sortx .card.dragging { opacity: .45; }
.sortx .card.selected { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent), var(--shadow); }
.sortx .card .word { font-family: var(--deva); font-size: 25px; line-height: 1.2; color: var(--ink); display: block; }
.sortx .card .hint { display: none; font-size: 11px; color: var(--ink-soft); margin-top: 2px; line-height: 1.35; }
.sortx.show-hints .card .hint { display: block; }
.sortx .card.correct { border-color: var(--good); box-shadow: 0 0 0 2px var(--good); }
.sortx .card.wrong   { border-color: var(--bad);  box-shadow: 0 0 0 2px var(--bad); }
.sortx .card .mark {
  position: absolute; top: -8px; right: -8px; width: 20px; height: 20px;
  border-radius: 50%; font-size: 13px; font-weight: 700; color: #fff;
  display: none; align-items: center; justify-content: center; line-height: 1;
}
.sortx .card.correct .mark { display: flex; background: var(--good); }
.sortx .card.wrong .mark   { display: flex; background: var(--bad); }

.sortx .feedback {
  margin-top: 20px; border-radius: var(--radius); padding: 14px 18px;
  font-weight: 600; display: none; align-items: center; gap: 10px;
  background: color-mix(in srgb, var(--good) 16%, var(--panel));
  border: 1px solid var(--good); color: var(--ink);
}
.sortx .feedback.show { display: flex; }
.sortx .feedback .om { font-family: var(--deva); font-size: 22px; color: var(--good); }

@media (prefers-reduced-motion: reduce) { .sortx * { transition: none !important; } }