.qr-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 24px;
  align-items: start;
}
.qr-form-panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh);
  overflow: hidden;
  position: sticky;
  top: 24px;
}
.size-options, .err-options {
  display: flex; gap: 8px; flex-wrap: wrap;
}
.size-opt, .err-opt {
  display: flex; align-items: center;
  cursor: pointer;
}
.size-opt input, .err-opt input { display: none; }
.size-opt span {
  padding: 7px 14px; border-radius: 8px;
  border: 1.5px solid var(--border);
  font-size: 13px; font-weight: 600; color: var(--text2);
  transition: all .15s; cursor: pointer;
}
.size-opt input:checked + span {
  border-color: var(--p); background: var(--p-lt); color: var(--p);
}
.err-opt span {
  display: flex; flex-direction: column; align-items: center;
  padding: 7px 12px; border-radius: 8px;
  border: 1.5px solid var(--border);
  font-size: 13px; font-weight: 700; color: var(--text2);
  transition: all .15s; cursor: pointer; line-height: 1.2;
  gap: 1px;
}
.err-opt span em { font-size: 10px; font-style: normal; color: var(--text3); font-weight: 500; }
.err-opt input:checked + span {
  border-color: var(--p); background: var(--p-lt); color: var(--p);
}
.err-opt input:checked + span em { color: var(--p); }

.adv-color-picker {
  display: flex; align-items: center; gap: 8px;
  border: 1.5px solid var(--border); border-radius: 9px;
  padding: 6px 10px; background: #fff; transition: border-color .18s;
}
.adv-color-picker:focus-within { border-color: var(--p); box-shadow: 0 0 0 3px rgba(105,56,239,.1); }
.adv-color-picker input[type=color] {
  width: 28px; height: 28px; border: none; border-radius: 6px;
  cursor: pointer; padding: 0; background: none; flex-shrink: 0;
}
.adv-color-picker input[type=text] {
  border: none; outline: none; font-size: 13px; font-family: 'Courier New', monospace;
  color: var(--text); width: 80px; background: none;
}

.color-presets {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.preset-label { font-size: 11px; color: var(--text3); font-weight: 600; }
.color-preset-btn {
  width: 24px; height: 24px; border-radius: 50%;
  border: 2px solid #fff; box-shadow: 0 0 0 1.5px var(--border);
  cursor: pointer; transition: transform .15s, box-shadow .15s;
}
.color-preset-btn:hover { transform: scale(1.2); box-shadow: 0 0 0 2px var(--p); }

.char-count { font-size: 11px; color: var(--text3); font-weight: 500; margin-top: 2px; }

.qr-gen-btn {
  width: 100%; padding: 13px;
  background: var(--p); color: #fff; border: none;
  border-radius: var(--r); font-size: 14.5px; font-weight: 700;
  font-family: 'Inter', sans-serif; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  box-shadow: 0 4px 16px rgba(105,56,239,.35);
  transition: background .18s, transform .12s;
  margin-top: 4px;
}
.qr-gen-btn:hover { background: var(--p-d); transform: translateY(-1px); }

.qr-preview-panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh);
  overflow: hidden;
}
.preview-top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, var(--p-llt), var(--p-lt));
}
.preview-heading { font-size: 14px; font-weight: 700; color: var(--text); }
.preview-actions-row { display: flex; gap: 8px; }
.dl-action-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 9px;
  font-size: 12.5px; font-weight: 700; cursor: pointer;
  font-family: 'Inter', sans-serif; border: none;
  transition: all .15s;
}
.dl-action-btn.primary { background: var(--p); color: #fff; }
.dl-action-btn.primary:hover { background: var(--p-d); }
.dl-action-btn.secondary { background: var(--p-lt); color: var(--p); }
.dl-action-btn.secondary:hover { background: #ddd6fe; }

.qr-preview-area {
  display: flex; align-items: center; justify-content: center;
  min-height: 360px; padding: 40px;
  background: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(105,56,239,.02) 10px, rgba(105,56,239,.02) 20px);
}
.qr-placeholder {
  display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center;
}
.qr-placeholder p { font-size: 14px; color: var(--text3); }
.qr-hint { font-size: 12px; color: var(--text3); margin-top: -4px; }

#qrOutput { max-width: 100%; }
#qrOutput canvas {
  display: block; max-width: 100%; height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,.12);
}

.qr-contrast-warn {
  display: flex; align-items: flex-start; gap: 8px;
  background: #fffbeb; border: 1px solid #fcd34d; color: #92400e;
  border-radius: 8px; padding: 10px 13px;
  font-size: 12.5px; line-height: 1.5;
}
.qr-contrast-warn[hidden] { display: none; }
.qr-status {
  min-height: 0; margin: 0; padding: 0 20px;
  font-size: 12.5px; font-weight: 600; color: var(--text2); text-align: center;
}
.qr-status:not(:empty) { padding: 10px 20px; border-top: 1px solid var(--border); }
.qr-status.is-error { color: #b91c1c; }
.qr-status.is-ok { color: #15803d; }

.qr-meta {
  display: grid; grid-template-columns: repeat(4,1fr);
  border-top: 1px solid var(--border);
  background: var(--bg2);
}
.qr-meta-item {
  display: flex; flex-direction: column; gap: 3px;
  padding: 14px 16px; border-right: 1px solid var(--border);
}
.qr-meta-item:last-child { border-right: none; }
.qr-meta-item span { font-size: 10.5px; color: var(--text3); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
.qr-meta-item strong { font-size: 13px; color: var(--text); font-weight: 700; }

@media (max-width: 900px) {
  .qr-layout { grid-template-columns: 1fr; }
  .qr-form-panel { position: static; }
  .qr-meta { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 480px) {
  .qr-meta { grid-template-columns: 1fr 1fr; }
  .qr-preview-area { padding: 20px 12px; min-height: 260px; }
  .preview-top { flex-wrap: wrap; gap: 10px; }
}

/* Form fields: same look as the shared tool form (tool-modern.css), which styles only <form> fields */
.qr-form-panel .form-body { display: flex; flex-direction: column; gap: 16px; }
.qr-form-panel .field { display: flex; flex-direction: column; min-width: 0; }
.qr-form-panel .field > label { display: block; font-size: 13.5px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.qr-form-panel .field textarea {
  width: 100%; padding: 11px 14px; min-height: 90px; resize: vertical;
  border: 1.5px solid var(--border); border-radius: var(--r); background: #fff; color: var(--text);
  font-size: 14px; font-family: 'Inter', sans-serif; line-height: 1.5; outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.qr-form-panel .field textarea:focus { border-color: var(--p); box-shadow: 0 0 0 3px rgba(124,58,237,.1); }
.qr-form-panel .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.qr-form-panel .adv-color-picker input[type=text] { width: 100%; min-width: 0; }
@media (max-width: 480px) { .qr-form-panel .field-row { grid-template-columns: 1fr; } }