/* Keyword Concatenation Tool styles */
.kwc { --kwc-accent:#94ee66; --kwc-accent-text:#000; --kwc-grey:#f2f2f2; --kwc-border:#e5e7eb; --kwc-text:#111827; --kwc-muted:#6b7280; font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif; color: var(--kwc-text); }
.kwc * { box-sizing: border-box; }
.kwc-title { margin: 0 0 1rem; font-size: 1.25rem; font-weight: 700; }
.kwc-form { display: block; }
.kwc-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
@media (max-width: 1100px) { .kwc-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 640px)  { .kwc-grid { grid-template-columns: 1fr; } }

.kwc-col { border: 1px solid var(--kwc-border); border-radius: 10px; padding: 12px; background: #fff; }
.kwc-col legend { font-weight: 700; padding: 0 6px; }
.kwc-label { display:block; font-size: 0.9rem; color: var(--kwc-muted); margin: 6px 0; }
.kwc-textarea { width: 100%; min-height: 140px; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--kwc-border); background: var(--kwc-grey); resize: vertical; }
.kwc-output { min-height: 220px; }
.kwc-input { width: 100%; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--kwc-border); background: #fff; }
.kwc-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
.kwc-sublabel { display: grid; gap: 6px; font-size: 0.85rem; color: var(--kwc-muted); }

.kwc-options { margin-top: 16px; border: 1px solid var(--kwc-border); border-radius: 10px; padding: 12px; background: #fff; }
.kwc-options legend { font-weight: 700; padding: 0 6px; }
.kwc-checks { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 8px; }
.kwc-check { display: inline-flex; align-items: center; gap: 8px; font-size: 0.95rem; }

.kwc-actions { display:flex; flex-wrap:wrap; gap:10px; margin-top:14px; }
.kwc-btn { border-radius: 999px; padding: 10px 16px; border: 1px solid var(--kwc-border); background: #fff; color: var(--kwc-text); cursor: pointer; font-weight: 600; }
.kwc-btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.kwc-btn:hover:not([disabled]) { filter: brightness(0.98); }
.kwc-btn-primary { background: var(--kwc-accent); color: var(--kwc-accent-text); border-color: var(--kwc-accent); }
.kwc-btn-ghost { background: transparent; }

.kwc-results-wrap { margin-top: 12px; }
.kwc-stats { font-size: 0.9rem; color: var(--kwc-muted); margin-bottom: 6px; }
.kwc-sep { margin: 0 6px; color: var(--kwc-border); }