/* ============================================================
 * Utilities Bunker — Pattern Generator (v2.1)
 * File: /assets/css/modules/colors/pattern-generator.v2.1.css
 * Purpose:
 * - Tool-only layout + preview lab visuals + code output styling
 * Notes:
 * - NO changes to ub-toolkit.v2.1.css
 * - Mobile-first, 44x44 touch targets, clamp typography
 * ============================================================ */

/* ============================== Local tokens (tool-scoped) ============================== */
:root{
  --pg-radius: 16px;
  --pg-gap: 14px;
  --pg-soft: rgba(0,0,0,.06);
}

/* ============================== Tool hero layout ============================== */
.ub-pg-hero{
  display:grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--pg-gap);
}

/* Stack on tablet/mobile */
@media (max-width: 980px){
  .ub-pg-hero{ grid-template-columns: 1fr; }
}

/* ============================== Preview Lab panel ============================== */
.ub-pg-lab{
  background: var(--ub-surface-2);
  border: 1px solid var(--ub-border);
  border-radius: var(--pg-radius);
  padding: 12px;
}

.ub-pg-lab-top{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap: 10px;
  flex-wrap:wrap;
  margin-bottom: 10px;
}

.ub-pg-lab-title{
  font-size: clamp(13px, 1.2vw, 14px);
  font-weight: 950;
  letter-spacing: .01em;
}

.ub-pg-lab-sub{
  font-size: 12px;
  color: var(--ub-muted);
  margin-top: 2px;
}

/* ============================== KPI tiles (tool) ============================== */
.ub-pg-kpis{
  display:flex;
  flex-wrap:wrap;
  gap: 8px;
  justify-content:flex-end;
}

.ub-pg-kpi{
  min-width: 118px;
  padding: 8px 10px;
  border-radius: 14px;
  border: 1px solid var(--ub-border);
  background: var(--ub-card-bg);
}

.ub-pg-kpi .k{
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--ub-muted);
}

.ub-pg-kpi .v{
  font-family: var(--ub-mono);
  font-weight: 950;
  font-size: 14px;
  margin-top: 2px;
}

/* ============================== Preview area ============================== */
.ub-pg-preview-wrap{
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--ub-border);
  background: var(--ub-card-bg);
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.02);
}

/* A fixed-ish preview height with responsive behavior */
.ub-pg-preview{
  width: 100%;
  height: clamp(220px, 32vw, 420px);
  min-height: 220px;
  border-radius: 14px; /* visually matches wrap */
}

/* Tile guides overlay */
.ub-pg-preview.ub-pg-guides{
  position: relative;
}

.ub-pg-preview.ub-pg-guides::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(0,0,0,.15) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,0,0,.15) 1px, transparent 1px);
  background-size: 32px 32px;
  mix-blend-mode: multiply;
  opacity: .35;
}

html.ub-theme-dark .ub-pg-preview.ub-pg-guides::after{
  background-image:
    linear-gradient(to right, rgba(255,255,255,.18) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.18) 1px, transparent 1px);
  mix-blend-mode: screen;
  opacity: .28;
}

/* ============================== Presets row ============================== */
.ub-pg-preset-row{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin-top: 10px;
}

.ub-pg-preset-row .ub-chip{
  min-height: 44px;
  padding: 10px 12px;
}

/* ============================== Tool note ============================== */
.ub-pg-note{
  margin-top: 10px;
  font-size: 12px;
  color: var(--ub-muted);
}

/* ============================== Code output ============================== */
.ub-pg-codewrap{
  width: 100%;
}

.ub-pg-textarea{
  width: 100%;
  min-height: 220px;
  border-radius: var(--ub-radius-2);
  border: 1px solid var(--ub-border);
  background: var(--ub-surface-1);
  color: var(--ub-text);
  font-family: var(--ub-mono);
  font-size: 13px;
  line-height: 1.55;
  padding: 12px;
  resize: vertical;
}

.ub-pg-textarea:focus{
  outline: none;
  box-shadow: 0 0 0 4px var(--ub-focus);
}

/* ============================== Small screens polish ============================== */
@media (max-width: 520px){
  .ub-pg-kpi{ min-width: 104px; }
  .ub-pg-preview{ height: clamp(210px, 46vw, 340px); }
}

/* ============================== Reduce motion niceties ============================== */
@media (prefers-reduced-motion: reduce){
  .ub-pg-preview, .ub-pg-preview-wrap{ scroll-behavior: auto; }
}