/* =========================================================
   QR Code Builder — tool styles
   LAB-153. Loads after labs.css. Built from _labs-template/.

   SCOPE: everything here is specific to the QR tool. Fields,
   tabs, buttons and panels come from labs.css.

   RULE: a raw hex here is a bug. Tokens only. The status colors
   reuse --labs-status-live / -wip / -error from labs.css.
   ========================================================= */

/* =========================================================
   DEGRADATION GUARD — do not remove. LAB-209 §4.
   This file sets display: grid / flex on the gated mounts
   below (.qr-stage, .qr-scan), so it must carry the rule that
   keeps [hidden] winning, or a visitor with labs.css blocked
   and JS off gets a page full of dead controls.
   ========================================================= */

[hidden] { display: none !important; }

/* =======================================================
   NOSCRIPT
   ======================================================= */

.qr-noscript p { margin: 0 0 12px; color: var(--text-secondary); line-height: 1.6; }
.qr-noscript p:last-child { margin-bottom: 0; }
.qr-noscript-alt { font-size: 14px; color: var(--labs-text-muted); }
.qr-noscript-alt a { color: var(--brand-blue-light); text-decoration: underline; }

/* =======================================================
   1 · STAGE — controls left, live output right
   ======================================================= */

.qr-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: calc(var(--labs-grid-gap) * 1.5);
  align-items: start;
}

.qr-controls { display: flex; flex-direction: column; gap: 28px; min-width: 0; }

.qr-group { display: flex; flex-direction: column; gap: 14px; min-width: 0; }

.qr-group-h {
  margin: 0;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.01em;
}

/* The type labels don't fit one row on a phone. */
.qr-tabs-wrap { flex-wrap: wrap; border-radius: var(--r-lg); align-self: flex-start; }
#qrEccTabs { align-self: flex-start; }

.qr-fields { display: flex; flex-direction: column; gap: 14px; }

.qr-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.qr-mono { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 14px; }

textarea.labs-input { resize: vertical; min-height: 44px; line-height: 1.5; }

.qr-opt {
  text-transform: none;
  letter-spacing: 0;
  font-weight: 500;
  color: var(--labs-text-muted);
}

.qr-check {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
}
.qr-check input { width: 18px; height: 18px; accent-color: var(--brand-blue); }

.qr-ecc-advice { margin-top: -4px; }

/* ---------- issues under the content fields ---------- */

.qr-issues { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.qr-issues:empty { display: none; }

.qr-issue {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.qr-issue-tag {
  flex: none;
  font-family: var(--font-display);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: var(--r-pill);
  border: 1px solid currentColor;
}
.qr-issue--error .qr-issue-tag { color: var(--labs-status-error); }
.qr-issue--warn .qr-issue-tag  { color: var(--labs-status-wip); }
.qr-issue--info .qr-issue-tag  { color: var(--labs-text-muted); }

/* ---------- colors ---------- */

.qr-color { display: flex; gap: 8px; align-items: stretch; }
.qr-color input[type="color"] {
  flex: none;
  width: 46px;
  min-height: 44px;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-elev-1);
  cursor: pointer;
}
.qr-color input[type="color"]:focus-visible { outline: 2px solid var(--brand-blue-light); outline-offset: 2px; }

.qr-inline-btns { display: flex; flex-wrap: wrap; gap: 8px; }

.qr-out {
  margin-left: 6px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-secondary);
}

.qr-range { width: 100%; accent-color: var(--brand-blue); min-height: 28px; }

/* ---------- output column ---------- */

.qr-output {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: var(--labs-grid-gap);
  min-width: 0;
}

.qr-preview-panel { display: flex; flex-direction: column; gap: 18px; align-items: stretch; }

.qr-preview {
  background: var(--bg-elev-2);
  border-radius: var(--r-md);
  padding: 18px;
  display: flex;
  justify-content: center;
}
.qr-preview svg { display: block; width: 100%; max-width: 340px; height: auto; }

.qr-empty {
  margin: 0;
  padding: 80px 18px;
  text-align: center;
  color: var(--labs-text-muted);
  background: var(--bg-elev-2);
  border-radius: var(--r-md);
}

.qr-verdict {
  align-self: flex-start;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: var(--r-pill);
  border: 1px solid currentColor;
}
.qr-verdict[data-level="pass"] { color: var(--labs-status-live); }
.qr-verdict[data-level="warn"] { color: var(--labs-status-wip); }
.qr-verdict[data-level="fail"] { color: var(--labs-status-error); }

.qr-stats {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
}
.qr-stat { min-width: 0; }
.qr-stat dt {
  font-family: var(--font-display);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--labs-text-muted);
}
.qr-stat dd { margin: 3px 0 0; font-size: 14px; color: var(--text-primary); }

.qr-export { display: flex; flex-direction: column; gap: 14px; }
.qr-export-btns { display: flex; flex-wrap: wrap; gap: 10px; }
.qr-export .btn[disabled], .qr-export .labs-btn-sm[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

/* =======================================================
   2 · WILL IT SCAN?
   ======================================================= */

.qr-scan { display: flex; flex-direction: column; gap: 20px; }
.qr-scan-inputs { max-width: 760px; }

.qr-checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }

.qr-checkitem {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 18px;
  background: var(--labs-card-bg);
  border: 1px solid var(--labs-card-border);
  border-left-width: 3px;
  border-radius: var(--r-md);
}
.qr-checkitem[data-level="pass"] { border-left-color: var(--labs-status-live); }
.qr-checkitem[data-level="warn"] { border-left-color: var(--labs-status-wip); }
.qr-checkitem[data-level="fail"] { border-left-color: var(--labs-status-error); }

.qr-check-badge {
  flex: none;
  min-width: 74px;
  font-family: var(--font-display);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-top: 2px;
}
.qr-checkitem[data-level="pass"] .qr-check-badge { color: var(--labs-status-live); }
.qr-checkitem[data-level="warn"] .qr-check-badge { color: var(--labs-status-wip); }
.qr-checkitem[data-level="fail"] .qr-check-badge { color: var(--labs-status-error); }

.qr-check-body { display: flex; flex-direction: column; gap: 3px; font-size: 14px; line-height: 1.5; color: var(--text-secondary); }
.qr-check-body strong { color: var(--text-primary); font-weight: 600; }

/* =======================================================
   Toast — visible twin of the live region (aria-hidden)
   ======================================================= */

.qr-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 80;
  transform: translate(-50%, 14px);
  padding: 11px 20px;
  border-radius: var(--r-pill);
  background: var(--bg-elev-2);
  border: 1px solid var(--border-strong);
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-base) var(--ease-out), transform var(--t-base) var(--ease-out);
}
.qr-toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* =======================================================
   Responsive + motion
   ======================================================= */

@media (max-width: 860px) {
  .qr-stage { grid-template-columns: minmax(0, 1fr); }
  .qr-output { position: static; }
}

@media (max-width: 520px) {
  .qr-row { grid-template-columns: minmax(0, 1fr); }
  .qr-stats { grid-template-columns: minmax(0, 1fr); }
  .qr-export-btns .btn { flex: 1 1 auto; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  .qr-toast { transition: none; }
}