/* QR code generator (/qr-code), in the site's look: paper panels with ink edges, the sign green for
   what's chosen and what scans, the site's red for what doesn't. Layout follows the original tool. */
.qr {
  --qr-tint: color-mix(in srgb, var(--color-sign) 12%, var(--color-paper-2));
  --qr-ok: var(--color-sign);
  --qr-warn: #8a5a00;
  --qr-bad: #a8361f;
  caret-color: var(--color-sign);
}
.qr-band { padding-top: var(--space-md); }
.qr-crumb { margin: 0 0 var(--space-sm); font-size: var(--text-sm); font-weight: 700; }
.qr-crumb a { text-decoration: none; border-bottom: var(--rule-ink) solid currentColor; }
.qr-crumb a::before { content: "← "; }
.qr-promise { display: flex; align-items: flex-start; gap: var(--space-2xs); }
.qr-promise .qr-ic { width: 1.25rem; height: 1.25rem; margin-top: 0.2em; color: var(--color-sign); }

.qr-ic { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.qr :focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }

/* Layout */
.qr-layout { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: var(--space-md); align-items: start; }
.qr-panel { background: var(--color-paper-2); border: var(--rule-ink) solid var(--color-ink); border-radius: var(--radius-lg); }
.qr-compose { padding: var(--space-md) var(--space-md) var(--space-lg); }
.qr-preview { padding: var(--space-md); position: sticky; top: var(--space-md); }

.qr-section + .qr-section { margin-top: var(--space-lg); padding-top: var(--space-lg); border-top: var(--rule-hair) solid var(--color-rule); }
.qr-section > h2, .qr-types legend {
  margin: 0 0 var(--space-sm); padding: 0; border: 0;
  font-family: var(--font-display); font-size: var(--text-lg); font-weight: 800; letter-spacing: var(--tracking-display); color: var(--color-ink);
}

/* What goes in the code */
.qr-types { border: 0; margin: 0 0 var(--space-md); padding: 0; min-width: 0; }
.qr-type-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: var(--space-2xs); }
.qr-type, .qr-file { position: relative; }
.qr-type { display: flex; }
.qr-type input, .qr-seg input { position: absolute; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
.qr-type label {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.35rem;
  flex: 1; min-height: 72px; padding: 0.6rem 0.25rem;
  border: var(--rule-hair) solid var(--color-field); border-radius: var(--radius);
  background: var(--color-paper-2); color: var(--color-muted);
  font-size: var(--text-sm); font-weight: 700; line-height: 1.2; text-align: center; cursor: pointer;
  transition: background-color var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out);
}
.qr-type label:hover { color: var(--color-ink); border-color: var(--color-ink); }
.qr-type input:checked + label { background: var(--qr-tint); border: var(--rule-ink) solid var(--color-sign); color: var(--color-ink); }
.qr-type input:checked + label .qr-ic { color: var(--color-sign); }
.qr-type input:focus-visible + label { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.qr-type .qr-ic { width: 22px; height: 22px; }

/* Fields (inputs are the site's .input) */
.qr-form[hidden] { display: none; }
.qr-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-sm); }
.qr-grid .qr-span { grid-column: 1 / -1; }
.qr-field { display: flex; flex-direction: column; gap: var(--space-3xs); min-width: 0; }
.qr-form > .qr-field + .qr-field, .qr-form > .qr-check { margin-top: var(--space-sm); }
.qr-hint { margin: 0; }
.qr-hint[hidden], [hidden].qr-field { display: none; }
textarea.qr-input { min-height: 6.5rem; }
.qr-select { position: relative; }
.qr-pass { position: relative; }
.qr-pass .qr-input { padding-right: 3.2rem; }
.qr-pass button {
  position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  width: 42px; height: 40px; display: grid; place-items: center;
  border: 0; border-radius: var(--radius); background: transparent; color: var(--color-muted); cursor: pointer;
}
.qr-pass button:hover { color: var(--color-ink); background: var(--color-paper-3); }
.qr-check { display: flex; align-items: center; gap: var(--space-2xs); font-weight: 600; cursor: pointer; width: fit-content; min-height: 44px; }
.qr-check input { width: 1.2rem; height: 1.2rem; margin: 0; accent-color: var(--color-sign); cursor: pointer; }

/* Look */
.qr-colors { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: var(--space-xs); align-items: end; }
.qr-color { display: flex; align-items: center; gap: var(--space-2xs); }
.qr-color input[type="color"] {
  width: 3rem; height: 3rem; flex: none; padding: 3px;
  border: var(--rule-hair) solid var(--color-field); border-radius: var(--radius); background: var(--color-paper-2); cursor: pointer;
}
.qr-color input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.qr-color input[type="color"]::-webkit-color-swatch { border: 0; border-radius: calc(var(--radius) - 3px); }
.qr-color input[type="color"]::-moz-color-swatch { border: 0; border-radius: calc(var(--radius) - 3px); }
.qr-color .qr-input { font-variant-numeric: tabular-nums; text-transform: uppercase; min-width: 0; }
.qr-color .qr-input:disabled { text-decoration: line-through; }
.qr-swap {
  width: 3rem; height: 3rem; display: grid; place-items: center;
  border: var(--rule-ink) solid var(--color-ink); border-radius: var(--radius); background: transparent; color: var(--color-ink); cursor: pointer;
}
.qr-swap:hover { background: var(--color-ink); color: var(--color-paper); }
.qr-swap:disabled { opacity: 0.4; cursor: not-allowed; background: transparent; color: var(--color-ink); }
.qr-look-row { margin-top: var(--space-md); }

/* Error correction: like the site's segmented links */
.qr-seg { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: var(--rule-ink) solid var(--color-ink); border-radius: var(--radius); overflow: hidden; }
.qr-seg label {
  display: flex; flex-direction: column; align-items: center; gap: 1px;
  padding: 0.45rem 0.25rem; cursor: pointer; color: var(--color-ink); background: var(--color-paper-2);
}
.qr-seg label + input + label { border-left: var(--rule-ink) solid var(--color-ink); }
.qr-seg label b { font-family: var(--font-display); font-size: var(--text-base); font-weight: 800; }
.qr-seg label span { font-size: var(--text-xs); font-variant-numeric: tabular-nums; color: var(--color-muted); }
.qr-seg label:hover { background: var(--color-paper-3); }
.qr-seg input:checked + label { background: var(--color-ink); color: var(--color-paper); }
.qr-seg input:checked + label span { color: var(--color-paper-3); }
.qr-seg input:focus-visible + label { outline: 3px solid var(--color-sign); outline-offset: -3px; }

.qr-range { display: flex; align-items: center; gap: var(--space-sm); }
.qr-range input[type="range"] { flex: 1; min-width: 0; accent-color: var(--color-sign); height: 28px; cursor: pointer; }
.qr-range output { min-width: 5.5rem; text-align: right; font-size: var(--text-sm); font-weight: 600; font-variant-numeric: tabular-nums; }

.qr-logo-empty { display: flex; align-items: center; gap: var(--space-xs); flex-wrap: wrap; }
.qr-logo-card { display: grid; grid-template-columns: 56px minmax(0, 1fr) auto; gap: var(--space-sm); align-items: center; }
.qr-logo-card[hidden], .qr-logo-empty[hidden], .qr-logo-size[hidden] { display: none; }
.qr-logo-thumb {
  width: 56px; height: 56px; border-radius: var(--radius); border: var(--rule-hair) solid var(--color-field);
  background: var(--qr-logo, none) center / 78% no-repeat, conic-gradient(#d4d8dd 25%, #fff 0 50%, #d4d8dd 0 75%, #fff 0) 0 0 / 12px 12px;
}
.qr-logo-name { font-size: var(--text-sm); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qr-logo-size { margin-top: var(--space-sm); }
.qr-file:focus-within { outline: 3px solid var(--color-focus); outline-offset: 2px; }
.qr-file input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.qr .btn .qr-ic { width: 18px; height: 18px; }

/* Preview */
.qr-stage { display: flex; flex-direction: column; gap: var(--space-sm); }
.qr-plate {
  position: relative; width: 100%; max-width: 332px; aspect-ratio: 1 / 1; margin: 0 auto;
  border: var(--rule-ink) solid var(--color-ink); border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: 0 6px 0 var(--color-ink); background: #fff;
}
.qr-plate.is-clear { background: conic-gradient(#d4d8dd 25%, #fff 0 50%, #d4d8dd 0 75%, #fff 0) 0 0 / 16px 16px; }
.qr-plate canvas { display: block; width: 100%; height: 100%; transition: opacity .2s ease-out; }
.qr-plate.is-empty canvas { opacity: 0.1; }
.qr-plate-hint {
  position: absolute; inset: 0; display: none; place-items: center; padding: var(--space-md);
  margin: 0; text-align: center; font-family: var(--font-display); font-weight: 800; color: var(--color-ink);
}
.qr-plate.is-empty .qr-plate-hint { display: grid; }
.qr-plate::after {
  content: ''; position: absolute; left: 0; right: 0; top: 0; height: 28%; pointer-events: none; opacity: 0;
  background: linear-gradient(to bottom, transparent, color-mix(in srgb, var(--qr-sweep, var(--qr-ok)) 22%, transparent) 72%, color-mix(in srgb, var(--qr-sweep, var(--qr-ok)) 75%, transparent));
}
.qr-plate.is-read::after { animation: qr-sweep .6s cubic-bezier(.16, 1, .3, 1); }
@keyframes qr-sweep { 0% { transform: translateY(-100%); opacity: 1; } 80% { opacity: 1; } 100% { transform: translateY(358%); opacity: 0; } }

.qr-verdict { display: flex; align-items: flex-start; gap: var(--space-2xs); min-height: 2.75rem; margin-top: var(--space-2xs); }
.qr-dot {
  width: 24px; height: 24px; flex: none; border-radius: 50%; display: grid; place-items: center;
  background: var(--color-paper-3); color: var(--color-muted); margin-top: 1px;
}
.qr-dot .qr-ic { width: 14px; height: 14px; stroke-width: 2.5; }
.qr-verdict[data-tone="ok"] .qr-dot { background: var(--qr-ok); color: #fff; }
.qr-verdict[data-tone="warn"] .qr-dot { background: var(--qr-warn); color: #fff; }
.qr-verdict[data-tone="bad"] .qr-dot { background: var(--qr-bad); color: #fff; }
.qr-verdict-text { display: flex; flex-direction: column; gap: 0.1rem; min-width: 0; }
.qr-verdict-text strong { font-weight: 700; line-height: 1.35; }
.qr-verdict-text span { font-size: var(--text-sm); color: var(--color-muted); line-height: 1.45; }
.qr-verdict-text span:empty { display: none; }
.qr-verdict.is-new .qr-dot { animation: qr-pop .34s cubic-bezier(.16, 1, .3, 1); }
.qr-verdict.is-new .qr-verdict-text { animation: qr-rise .34s cubic-bezier(.16, 1, .3, 1); }
@keyframes qr-pop { from { transform: scale(.5); } to { transform: none; } }
@keyframes qr-rise { from { opacity: .35; transform: translateY(3px); } to { opacity: 1; transform: none; } }

.qr-meta { margin: 0; font-size: var(--text-sm); color: var(--color-muted); font-variant-numeric: tabular-nums; }
.qr-meta:empty { display: none; }
.qr-actions { display: grid; grid-template-columns: 1fr auto auto; gap: var(--space-2xs); }
.qr-actions .btn { padding-inline: var(--space-sm); }
.qr-export { display: flex; align-items: center; justify-content: space-between; gap: var(--space-xs); font-size: var(--text-sm); font-weight: 600; }
.qr-export .qr-select { width: 9.5rem; }
.qr-export select.input { min-height: 2.5rem; padding-block: 0.3rem; font-variant-numeric: tabular-nums; }

.qr-payload { border-top: var(--rule-hair) solid var(--color-rule); padding-top: var(--space-xs); }
.qr-payload summary {
  display: inline-flex; align-items: center; gap: 0.35rem; list-style: none; min-height: 44px;
  cursor: pointer; font-size: var(--text-sm); font-weight: 700; color: var(--color-ink);
}
.qr-payload summary::-webkit-details-marker { display: none; }
.qr-payload summary .qr-ic { width: 16px; height: 16px; transform: rotate(-90deg); transition: transform .18s ease-out; }
.qr-payload[open] summary .qr-ic { transform: none; }
.qr-compose .qr-payload { margin-top: var(--space-sm); }
.qr-payload pre {
  margin: var(--space-2xs) 0 0; padding: var(--space-xs) var(--space-sm); max-height: 11rem; overflow: auto;
  border-radius: var(--radius); background: var(--color-paper-3); border: var(--rule-hair) solid var(--color-rule);
  font: 0.8125rem/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; white-space: pre-wrap; word-break: break-all;
}

/* 3D printed sign (coming soon) */
.qr-sign {
  flex-direction: row; align-items: center; gap: var(--space-md); margin-top: var(--space-md);
  background: transparent; border-style: dashed;
}
.qr-sign-art { width: 64px; height: 64px; flex: none; fill: none; stroke: currentColor; stroke-width: 2.25; stroke-linecap: round; stroke-linejoin: round; }
.qr-sign-text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 0.35rem; }
.qr-sign-text p:last-child { max-width: 38rem; }
.qr-sign .btn { flex: none; }

@media (max-width: 62rem) {
  .qr-layout { grid-template-columns: minmax(0, 1fr) 320px; gap: var(--space-sm); }
  .qr-type-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .qr-compose, .qr-preview { padding: var(--space-sm); }
}

@media (max-width: 47.5rem) {
  .qr-layout { grid-template-columns: minmax(0, 1fr); }
  .qr-preview { order: -1; position: static; }
  .qr-stage {
    display: grid; grid-template-columns: clamp(150px, 34vw, 220px) minmax(0, 1fr);
    grid-template-areas: "plate verdict" "plate meta" "plate actions" "plate export" "payload payload";
    grid-template-rows: auto auto 1fr auto auto; gap: var(--space-2xs) var(--space-sm);
  }
  .qr-stage > * { min-width: 0; }
  .qr-plate { grid-area: plate; max-width: none; align-self: start; box-shadow: 0 4px 0 var(--color-ink); margin-bottom: 0.35rem; }
  .qr-plate-hint { font-size: var(--text-sm); padding: var(--space-xs); }
  .qr-verdict { grid-area: verdict; min-height: 0; margin-top: 0; }
  .qr-meta { grid-area: meta; align-self: start; }
  .qr-actions { grid-area: actions; align-self: end; max-width: 26rem; }
  .qr-export { grid-area: export; max-width: 26rem; }
  .qr-payload { grid-area: payload; }
  .qr-sign { flex-direction: column; align-items: flex-start; }
  .qr-sign-art { display: none; }
}

@media (max-width: 32.5rem) {
  .qr-stage {
    grid-template-columns: minmax(0, 1fr) 7.5rem;
    grid-template-areas: "plate actions" "plate export" "verdict verdict"; grid-template-rows: auto 1fr auto;
  }
  .qr-meta { display: none; }
  .qr-actions { grid-template-columns: minmax(0, 1fr); align-self: start; }
  .qr-actions .btn { padding-inline: var(--space-2xs); }
  .qr-export { align-self: end; }
  .qr-export label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .qr-export .qr-select { width: 100%; }
  .qr-types legend { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .qr-type-grid {
    display: flex; gap: var(--space-2xs); overflow-x: auto; overscroll-behavior-x: contain;
    margin: 0 calc(-1 * var(--space-sm)); padding: 4px var(--space-sm);
    scroll-snap-type: x proximity; scroll-padding-inline: var(--space-sm); scrollbar-width: none;
    -webkit-mask-image: linear-gradient(to right, transparent, #000 0.9rem, #000 calc(100% - 2.25rem), transparent);
    mask-image: linear-gradient(to right, transparent, #000 0.9rem, #000 calc(100% - 2.25rem), transparent);
  }
  .qr-type-grid::-webkit-scrollbar { display: none; }
  .qr-type { flex: none; scroll-snap-align: start; }
  .qr-type label { flex-direction: row; gap: 0.4rem; min-height: 44px; padding: 0 var(--space-sm); }
  .qr-type .qr-ic { width: 19px; height: 19px; }
  .qr-grid .qr-wide-sm { grid-column: 1 / -1; }
  .qr-colors { grid-template-columns: minmax(0, 1fr) auto; }
  .qr-colors .qr-swap { grid-column: 2; grid-row: 1 / span 2; align-self: center; }
  .qr-colors .qr-field:last-child { grid-column: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .qr *, .qr *::before, .qr *::after { transition: none !important; animation: none !important; }
}

/* Sign order panel */
.qr-sign-fit { font-weight: 600; color: var(--color-ink); }
form.qr-sign { border-style: solid; }