/* =========================================================
   QR Code Generator
   ========================================================= */
.qr-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 28px;
  align-items: start;
}

/* Type selector */
.qr-types {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}
.qr-type {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 14px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-solid);
  cursor: pointer;
  transition: transform 0.18s var(--ease), border-color 0.18s, background 0.18s;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}
.qr-type:hover { transform: translateY(-2px); border-color: var(--brand); }
.qr-type.active { border-color: var(--brand); background: var(--brand-soft); color: var(--brand); }
.qr-type svg { width: 22px; height: 22px; }

.qr-form {
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.qr-form h3 { font-size: 1.05rem; margin-bottom: 16px; }

/* Right rail — result */
.qr-result {
  position: sticky;
  top: 88px;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.qr-canvas-wrap {
  display: inline-block;
  padding: 16px;
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
  margin-bottom: 18px;
}
#qrCanvas { display: block; width: 260px; height: 260px; image-rendering: pixelated; }

.qr-style-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 14px;
}
.color-field { display: flex; align-items: center; gap: 8px; }
.color-field label { font-size: 0.78rem; font-weight: 600; color: var(--text-muted); }
.color-field input[type="color"] {
  width: 34px; height: 34px; padding: 0; border: 1px solid var(--border-strong);
  border-radius: 8px; background: none; cursor: pointer;
}
.qr-download { display: flex; gap: 10px; margin-top: 8px; }
.qr-download .btn { flex: 1; }

.logo-drop {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 14px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  color: var(--text-subtle);
  font-size: 0.85rem;
}
.logo-drop:hover, .logo-drop.drag { border-color: var(--brand); background: var(--brand-soft); }
.logo-drop img { margin-inline: auto; }

.range-field label { display: flex; justify-content: space-between; font-size: 0.8rem; font-weight: 600; color: var(--text-muted); margin-bottom: 6px; }
input[type="range"] { width: 100%; accent-color: var(--brand); }

@media (max-width: 900px) {
  .qr-layout { grid-template-columns: 1fr; }
  .qr-result { position: static; }
  .qr-types { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 480px) {
  .qr-types { grid-template-columns: repeat(2, 1fr); }
}