/* ============================================================
   QR Studio
   Tokens, spacing and component shapes follow the design canvas
   at app-design-with-moodboard/project/QR Studio.dc.html.
   Monospace throughout, per that design.
   ============================================================ */

@font-face {
  font-family: 'JetBrains Mono';
  src: url('fonts/JetBrainsMono.woff2') format('woff2');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, 'Cascadia Mono', monospace;

  --bg: #050505;
  --surface: #101010;
  --surface2: #171717;
  --field: #1a1a1a;

  --ink: #f6f6f6;
  --mid: #9a9a9a;
  /* Design specifies #5c5c5c; lifted to clear 4.5:1 on --surface, since every
     use of this tone is 9-11px text (section numbers, dimensions, footer). */
  --faint: #8a8a8a;

  --line: #252525;
  --line2: #1c1c1c;

  --red: #ff1f14;
  --redsoft: #2a0b09;

  --r-card: 16px;
  --r-ctl: 12px;
  --r-btn: 14px;
  --t: 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

input, textarea, select, button { font-family: var(--mono); color: inherit; }

::selection { background: var(--red); color: #fff; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}

/* Icon sprite: present for <use> references, never rendered itself. */
.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
}

.icon {
  width: 1em; height: 1em; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.75;
  stroke-linecap: round; stroke-linejoin: round;
}

:where(input, button, a):focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

/* The colour chip, file input and pill radios sit inside their controls,
   so the container carries the ring for them. */
.swatch:has(:focus-visible),
.filerow:has(input:focus-visible),
.field:has(input:focus-visible),
.pill-in:focus-visible + .pill {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

/* The swatch container carries the ring for both its chip and its button,
   so the button does not draw a second one inside it. */
.swatch__pick:focus-visible { outline: none; }

/* ── Shell ─────────────────────────────────────────────────── */

/* The design canvas is 1280 wide; without a cap the config card sprawls
   and the URL field ends up over 1600px on a wide monitor. */
.app {
  max-width: 1400px;
  margin: 0 auto;
  min-height: 100vh;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
}

/* ── Bar ───────────────────────────────────────────────────── */

.bar {
  padding: 14px 22px;
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
}

.brand__glyph {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid;
  place-content: center;
}

.brand__glyph::after {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--red);
}

.brand__name {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
}

.status {
  display: flex;
  align-items: center;
  gap: 9px;
  background: var(--surface2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 9.5px;
  letter-spacing: 0.14em;
  color: var(--mid);
}

.status__dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--red);
  flex: none;
}

/* ── Grid ──────────────────────────────────────────────────── */

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 470px;
  gap: 8px;
  align-items: start;
}

.out {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  position: sticky;
  top: 8px;
}

/* ── Configuration card ────────────────────────────────────── */

.config { min-width: 0; }

.config__head {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.config__titles { display: flex; flex-direction: column; gap: 5px; }

.eyebrow {
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--red);
}

.config__title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.btn-pill {
  background: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 15px;
  font-size: 9.5px;
  letter-spacing: 0.14em;
  color: var(--mid);
  cursor: pointer;
  flex: none;
  transition: border-color var(--t), color var(--t);
}

.btn-pill:hover { border-color: var(--red); color: var(--ink); }

.config__body { padding: 0 24px 22px; }

/* ── Groups ────────────────────────────────────────────────── */

.grp {
  padding: 20px 0;
  border-bottom: 1px solid var(--line2);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.grp--last { padding-bottom: 4px; border-bottom: 0; }

.grp__head { display: flex; align-items: center; gap: 12px; }

.grp__n {
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--faint);
  flex: none;
}

.grp__name {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  flex: none;
}

.grp__rule { flex: 1; height: 1px; background: var(--line2); }

.stack { display: flex; flex-direction: column; gap: 10px; }

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.hint {
  font-size: 11.5px;
  color: var(--mid);
}

.tag {
  font-size: 10px;
  color: var(--red);
  background: var(--redsoft);
  border-radius: 999px;
  padding: 4px 10px;
  flex: none;
}

/* ── Text field ────────────────────────────────────────────── */

.field {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--field);
  border: 1px solid var(--line);
  border-radius: var(--r-ctl);
  padding: 0 15px;
  transition: border-color var(--t);
}

.field:hover { border-color: var(--faint); }
.field:focus-within { border-color: var(--red); }

.field__icon { font-size: 13px; color: var(--red); }

.field input {
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  padding: 14px 0;
  font-size: 12.5px;
  outline: none;
}

.field input::placeholder { color: var(--faint); }

/* ── Swatches ──────────────────────────────────────────────── */

.swatches {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.swatch {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--field);
  border: 1px solid var(--line);
  border-radius: var(--r-ctl);
  padding: 13px 15px;
  min-width: 0;
  transition: border-color var(--t);
}

.swatch:hover { border-color: var(--faint); }
.swatch.is-active { border-color: var(--red); }

.swatch__chip {
  appearance: none;
  -webkit-appearance: none;
  width: 24px; height: 24px;
  flex: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: none;
  padding: 0;
  cursor: pointer;
}

.swatch__chip::-webkit-color-swatch-wrapper { padding: 0; }
.swatch__chip::-webkit-color-swatch { border: 0; border-radius: 7px; }
.swatch__chip::-moz-color-swatch { border: 0; border-radius: 7px; }

.swatch__pick {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  text-align: left;
}

.swatch__label { font-size: 12px; flex: 1; }

.swatch__hex {
  font-size: 11px;
  color: var(--mid);
  text-transform: uppercase;
  flex: none;
}

/* ── Pills ─────────────────────────────────────────────────── */

.presets, .pills { display: flex; gap: 6px; flex-wrap: wrap; }

.pill {
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--field);
  color: var(--mid);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 14px;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background var(--t), border-color var(--t), color var(--t);
}

.pill:hover { border-color: var(--faint); color: var(--ink); }

.pill__dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  flex: none;
  box-shadow: inset 0 0 0 1px var(--line);
}

.pill__dot--black { background: #000000; }
.pill__dot--red { background: #ff1f14; }
.pill__dot--white { background: #ffffff; }

.pill-in {
  position: absolute;
  width: 1px; height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* The design sets #fff on the red; at 10.5px that is 3.85:1 and fails AA.
   Near-black on the same red is 5.30:1, so the accent is kept as specified
   and only the label colour changes. */
.pill-in:checked + .pill {
  background: var(--red);
  border-color: var(--red);
  color: var(--bg);
  font-weight: 600;
}

/* ── Checkbox ──────────────────────────────────────────────── */

.check { display: flex; align-items: center; gap: 11px; }

.check input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 16px; height: 16px;
  flex: none;
  border-radius: 6px;
  background: transparent;
  box-shadow: inset 0 0 0 1px var(--faint);
  cursor: pointer;
  position: relative;
  transition: background var(--t), box-shadow var(--t);
}

.check input[type="checkbox"]:checked {
  background: var(--red);
  box-shadow: inset 0 0 0 1px var(--red);
}

.check input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 5px; top: 2px;
  width: 4px; height: 8px;
  border: solid var(--bg);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.check label { font-size: 12px; cursor: pointer; user-select: none; }

/* Mark options stay in place when the stamp is off — dimmed, not removed */
.mark-opts {
  display: flex;
  flex-direction: column;
  gap: 15px;
  transition: opacity var(--t);
}

.mark-opts.is-off { opacity: 0.4; }

/* ── File row ──────────────────────────────────────────────── */

.filerow {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--field);
  border: 1px solid var(--line);
  border-radius: var(--r-ctl);
  padding: 13px 15px;
  cursor: pointer;
  transition: border-color var(--t);
}

.filerow:hover { border-color: var(--red); }

.filerow__tile {
  width: 20px; height: 20px;
  border-radius: 6px;
  background: var(--redsoft);
  display: grid;
  place-items: center;
  color: var(--red);
  flex: none;
}

.filerow__tile .icon { font-size: 11px; }

.filerow__name {
  font-size: 12px;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.filerow__action {
  font-size: 9.5px;
  letter-spacing: 0.12em;
  color: var(--faint);
  flex: none;
}

.filerow input[type="file"] {
  position: absolute;
  width: 1px; height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* ── Range ─────────────────────────────────────────────────── */

input[type="range"] {
  width: 100%;
  accent-color: var(--red);
  background: transparent;
  cursor: pointer;
}

/* ── Stage ─────────────────────────────────────────────────── */

.stage { padding: 22px; }

.stage__ground {
  background: #fff;
  border-radius: var(--r-ctl);
  padding: 26px;
  display: grid;
  place-items: center;
  position: relative;
  aspect-ratio: 1;
  transition: background var(--t);
}

#qr-canvas {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
}

#qr-canvas[hidden] { display: none; }

.stage__empty { font-size: 11.5px; color: var(--mid); }

.stage__dim {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  font-size: 10px;
  color: var(--faint);
}

.stage__rule { flex: 1; height: 1px; background: var(--line2); }

.loader {
  position: absolute;
  left: 26px; right: 26px; bottom: 10px;
  height: 2px;
  background: rgba(0, 0, 0, 0.12);
  overflow: hidden;
  transition: opacity var(--t);
}

.loader.hidden { opacity: 0; }

.loader__bar {
  display: block;
  width: 40%; height: 100%;
  background: var(--red);
  animation: sweep 900ms ease-in-out infinite;
}

@keyframes sweep {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(250%); }
}

/* ── Console ───────────────────────────────────────────────── */

.console {
  background: var(--surface2);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 11px;
  overflow-x: auto;
}

.console__cmd {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding-bottom: 5px;
  font-size: 11px;
  color: var(--ink);
  white-space: nowrap;
}

.console__sigil { color: var(--red); flex: none; }

.console__lines {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.console__lines li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 11px;
  color: var(--mid);
  white-space: nowrap;
}

.console__lines li::before {
  content: '>';
  color: var(--faint);
  flex: none;
}

.dots {
  flex: 1 1 12px;
  min-width: 12px;
  border-bottom: 1px dotted var(--line);
  transform: translateY(-3px);
}

.v { color: var(--ink); flex: none; }

.badge { flex: none; font-size: 10px; }
.badge--ok { color: var(--red); }
.badge--risky { color: var(--ink); }
.badge--fail { color: var(--ink); background: var(--red); border-radius: 3px; padding: 1px 4px; }

/* ── Actions ───────────────────────────────────────────────── */

.actions {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 16px;
  border: 1px solid transparent;
  border-radius: var(--r-btn);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: opacity var(--t), border-color var(--t), background var(--t);
}

.btn .icon { font-size: 14px; }

.btn--primary { background: var(--red); color: var(--bg); font-weight: 600; }
.btn--primary:hover { opacity: 0.86; }

.btn--ghost {
  background: var(--surface);
  border-color: var(--line);
  color: var(--ink);
}

.btn--ghost:hover { border-color: var(--red); }

/* ── Footer ────────────────────────────────────────────────── */

.foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 22px 8px;
  border-top: 1px solid var(--line2);
  margin-top: 4px;
  font-size: 9.5px;
  letter-spacing: 0.08em;
  color: var(--faint);
}

/* ── Toast — errors only; success is confirmed on the button ─ */

.toast-dock {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 100;
  pointer-events: none;
  max-width: calc(100vw - 32px);
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  color: var(--ink);
  font-size: 11px;
  padding: 12px 18px;
  border-radius: var(--r-ctl);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--t), transform var(--t);
}

.toast.is-in { opacity: 1; transform: translateY(0); }
.toast .icon { font-size: 14px; color: var(--red); flex: none; }

/* ── Responsive ────────────────────────────────────────────── */

@media (max-width: 1000px) {
  .grid { grid-template-columns: minmax(0, 1fr); }

  .out {
    position: static;
    order: -1;
  }

  .stage__ground { max-width: 420px; margin: 0 auto; width: 100%; }
}

@media (max-width: 560px) {
  .app { padding: 6px; gap: 6px; }
  .bar { padding: 14px 16px; gap: 14px; }
  .config__head { padding: 18px 16px 14px; }
  .config__body { padding: 0 16px 18px; }
  .stage { padding: 14px; }
  .stage__ground { padding: 18px; }
  .swatches { grid-template-columns: 1fr; }
  .actions { grid-template-columns: 1fr; }
  .foot { padding: 14px 16px 8px; }

  /* Let the verdict drop to its own line rather than scroll out of view. */
  .console__lines li { flex-wrap: wrap; }
  .console__lines li .badge { margin-left: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}