/* QR Code Generator (/tools/qr-code/). */
.qr-wrap { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 16px; }
.qr-controls { display: grid; flex: 1 1 420px; gap: 16px; min-width: 0; }
.qr-preview { display: grid; flex: 1 1 300px; gap: 12px; max-width: 440px; }
@media (min-width: 760px) { .qr-preview { position: sticky; top: 16px; } }
@media (max-width: 759px) { .qr-preview { order: -1; max-width: none; } }

.qr-box { display: grid; place-items: center; width: min(100%, 400px); aspect-ratio: 1; margin: 0 auto; overflow: hidden; background: var(--card2); border-radius: var(--radius); }
.qr-box svg { display: block; width: 100%; height: 100%; }
.qr-box p { margin: 0; padding: 16px; color: var(--muted); font-size: 13px; text-align: center; }
.qr-meta { margin: 0; font-size: 13px; text-align: center; }
.qr-meta:empty { display: none; }
.qr-preview .err, .qr-preview .note { margin: 0; }
.qr-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }

.qr-fields { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.qr-fields[hidden] { display: none; }
.qr-fields + .qr-fields { margin-top: 16px; }
.qr-fields .wide { grid-column: 1 / -1; }
.qr-fields.qr-colors { grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); }
.qr-controls [hidden] { display: none; }
.qr-controls label { display: grid; gap: 6px; min-width: 0; color: var(--muted); font-size: 13px; }
.qr-controls .field { width: 100%; min-width: 0; }
.qr-controls textarea.field { resize: vertical; }
.qr-controls label.qr-check { display: flex; align-items: center; gap: 8px; color: var(--text); font-size: 14px; }
.qr-controls input[type="checkbox"], .qr-controls input[type="range"] { accent-color: var(--accent); }
.qr-controls input[type="range"] { width: 100%; margin: 8px 0; }
.qr-controls .field.qr-swatch { height: 38px; padding: 3px; cursor: pointer; }
.qr-controls output { color: var(--text); }
.qr-hint { grid-column: 1 / -1; margin: 0; font-size: 13px; }
.qr-logo { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.qr-logo img { width: 38px; height: 38px; object-fit: contain; background: var(--card2); border-radius: var(--radius); }

.qr-adv summary { font-size: 17px; font-weight: 600; cursor: pointer; }
.qr-adv[open] summary { margin-bottom: 12px; }