/* Self-contained, wrapper-scoped styles for the embedded Word Unscrambler tool.
   Everything is namespaced under .wu-embed and the tool's design tokens are
   redefined ON .wu-embed, so this file can be loaded on pages with a different
   token system (e.g. the /N-letter-words/ length pages) without touching their
   theme. Mirrors the tool + results rules from /css/wordunscrambler.css. */
.wu-embed {
  --surface:      #ffffff;
  --surface2:     #eceeff;
  --body-bg:      #f5f7ff;
  --text:         #0f0f2e;
  --muted:        #515180;
  --border:       #cdd1f0;
  --border-control: #7a7fb5; /* 3:1+ on all surfaces - WCAG 1.4.11 for controls */
  --accent:       #4f46e5;
  --btn-primary:  #4f46e5;
  --btn-primary-h:#3730a3;
  --btn-sec:      #6b7280;
  --btn-sec-h:    #4b5563;
  --teal:         #4f46e5;
  --teal-dark:    #3730a3;
  --green:        #2d7a4a;
  --radius:       6px;
  --radius-lg:    12px;
  --shadow:       0 2px 8px rgba(0,0,0,.10);
  --mono:         'Courier New', Courier, monospace;
}

/* ── Search box ────────────────────────────────────────────────── */
.wu-embed .search-box { background: var(--surface); border-radius: var(--radius-lg); padding: 28px 28px 24px; box-shadow: var(--shadow); margin-bottom: 20px; }
.wu-embed .input-label { font-size: .85rem; color: var(--muted); margin-bottom: 8px; display: block; }
.wu-embed .input-row { display: flex; gap: 4px; align-items: stretch; margin-bottom: 16px; position: relative; }
.wu-embed .letter-input {
  flex: 1;
  padding: 14px 52px 14px 16px;
  font-size: 1.2rem;
  border: 2px solid var(--border-control, #7a7fb5);
  border-radius: var(--radius);
  outline: none;
  font-family: var(--mono);
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: border-color .2s, box-shadow .2s;
}
.wu-embed .letter-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79,70,229,.15); }
.wu-embed .char-counter { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); font-size: .75rem; color: var(--muted); pointer-events: none; }
.wu-embed .btn-row { display: flex; gap: 10px; flex-wrap: wrap; }

/* ── Buttons ───────────────────────────────────────────────────── */
.wu-embed .btn { display: inline-flex; align-items: center; gap: 6px; padding: 11px 24px; border: none; border-radius: var(--radius); font-size: .95rem; font-weight: 600; cursor: pointer; transition: background .18s, transform .1s; }
.wu-embed .btn:active { transform: scale(.97); }
.wu-embed .btn-primary { background: var(--btn-primary); color: #fff; }
.wu-embed .btn-primary:hover { background: var(--btn-primary-h); }
.wu-embed .btn-secondary { background: var(--btn-sec); color: #fff; }
.wu-embed .btn-secondary:hover { background: var(--btn-sec-h); }
.wu-embed .btn-secondary.active { background: var(--btn-primary-h); }
.wu-embed .btn-outline { background: transparent; color: var(--accent); border: 2px solid var(--accent); }
.wu-embed .btn-outline:hover { background: var(--accent); color: #fff; }
.wu-embed .btn-sm { padding: 7px 14px; font-size: .85rem; min-height: 44px; }

/* ── Options panel ─────────────────────────────────────────────── */
.wu-embed .options-panel { display: none; margin-top: 20px; padding: 22px; background: var(--surface2); border-radius: var(--radius-lg); border: 1px solid var(--border); animation: wuFadeDown .2s ease; }
.wu-embed .options-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px; }
.wu-embed .filter-group { display: flex; flex-direction: column; gap: 5px; }
.wu-embed .filter-group.full { grid-column: 1 / -1; }
.wu-embed .filter-label { font-size: .75rem; font-weight: 700; letter-spacing: .08em; color: var(--muted); text-transform: uppercase; }
.wu-embed .filter-input, .wu-embed .filter-select {
  padding: 10px 12px;
  border: 1.5px solid var(--border-control, #7a7fb5);
  border-radius: var(--radius);
  font-size: .9rem;
  background: #fff;
  color: var(--text);
  outline: none;
  transition: border-color .2s;
}
.wu-embed .filter-input:focus, .wu-embed .filter-select:focus { border-color: var(--teal); }
.wu-embed .options-footer { margin-top: 16px; display: flex; justify-content: flex-end; }
@keyframes wuFadeDown { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }

/* ── Results ───────────────────────────────────────────────────── */
.wu-embed #results-area { display: none; margin-top: 28px; }
.wu-embed .results-header { background: var(--surface); border-radius: var(--radius-lg); padding: 28px 28px 20px; box-shadow: var(--shadow); margin-bottom: 24px; }
.wu-embed .results-title { font-size: 1.5rem; font-weight: 800; color: var(--teal); margin-bottom: 10px; }
.wu-embed .letters-highlight { color: var(--teal-dark); }
.wu-embed .results-subtitle { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.wu-embed .results-summary { color: var(--muted); margin-bottom: 8px; }
.wu-embed .total-count { color: var(--teal); }
.wu-embed .letters-info { color: var(--muted); font-size: .9rem; margin-bottom: 14px; }
.wu-embed .report-link { color: var(--teal); font-weight: 600; }
.wu-embed .report-link:hover { color: var(--teal-dark); }
.wu-embed .report-list { list-style: disc; padding-left: 24px; display: flex; flex-direction: column; gap: 4px; }
.wu-embed .report-list li { font-size: .95rem; color: var(--muted); }
.wu-embed .report-len { color: var(--teal); font-weight: 700; }
.wu-embed .word-groups { display: flex; flex-direction: column; gap: 20px; }
.wu-embed .word-group { background: var(--surface); border-radius: var(--radius-lg); padding: 22px 24px; box-shadow: var(--shadow); }
.wu-embed .group-heading { font-size: 1.05rem; font-weight: 700; color: var(--teal); margin-bottom: 14px; border-bottom: 1px solid var(--border); padding-bottom: 10px; }
.wu-embed .group-count { font-weight: 400; color: var(--muted); font-size: .85rem; }
.wu-embed .word-tiles { display: flex; flex-wrap: wrap; gap: 8px; }
.wu-embed .word-tile {
  padding: 5px 11px;
  background: var(--body-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: .9rem;
  cursor: pointer;
  font-family: var(--mono);
  transition: background .15s, color .15s, border-color .15s;
  text-transform: uppercase;
  letter-spacing: .5px;
  display: inline-flex;
  align-items: center;
}
.wu-embed .word-tile:hover { background: var(--teal); color: #fff; border-color: var(--teal); }
.wu-embed .word-pts {
  display: inline-block;
  margin-left: 5px;
  padding: 0 6px;
  border-radius: 10px;
  font-size: .7rem;
  font-weight: 700;
  vertical-align: middle;
}
.wu-embed .word-pts.pts-s { background: var(--teal); color: #fff; }
.wu-embed .word-pts.pts-w { background: var(--green); color: #fff; }
.wu-embed .word-tile:hover .word-pts.pts-s { background: var(--teal-dark); }
.wu-embed .word-tile:hover .word-pts.pts-w { background: #1f5c35; }
.wu-embed .results-tools { margin-top: 12px; }
.wu-embed .copy-all-btn {
  padding: 7px 14px;
  border: 1px solid var(--teal);
  background: transparent;
  color: var(--teal);
  border-radius: 8px;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.wu-embed .copy-all-btn:hover { background: var(--teal); color: #fff; }
.wu-embed .no-results { background: var(--surface); border-radius: var(--radius-lg); padding: 32px; text-align: center; color: var(--muted); box-shadow: var(--shadow); }
.wu-embed .no-results p { margin-bottom: 8px; }