/* ══════════════════════════════════════════════════════════════════
   Design tokens
   The dark palette is the default; light is applied both by system
   preference and by an explicit [data-theme] on <html>, which always wins.
   ══════════════════════════════════════════════════════════════════ */

:root {
  --bg: #0f1115;
  --bg-soft: #12151b;
  --panel: #171a21;
  --panel-2: #1e222b;
  --panel-3: #252a35;
  --border: #2a2f3a;
  --border-strong: #39404f;
  --text: #e7e9ee;
  --muted: #9aa3b2;
  --faint: #6c7686;
  --accent: #6d9bff;
  --accent-strong: #4f7ff0;
  --accent-contrast: #0b1020;
  --danger: #ff7a7a;
  --danger-strong: #e05555;
  --ok: #56d98a;
  --warn: #f0c05a;

  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgb(0 0 0 / .25), 0 8px 24px -12px rgb(0 0 0 / .5);
  --ring: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent);
  --speed: .16s;
  --content: 1040px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6fa;
    --bg-soft: #eef1f7;
    --panel: #ffffff;
    --panel-2: #f4f6fa;
    --panel-3: #e8ecf4;
    --border: #dde3ed;
    --border-strong: #c4ccdb;
    --text: #171a21;
    --muted: #5b6472;
    --faint: #838d9c;
    --accent: #2f62d8;
    --accent-strong: #244fb4;
    --accent-contrast: #ffffff;
    --danger: #c93b3b;
    --danger-strong: #a92e2e;
    --ok: #17864a;
    --warn: #9a6b00;
    --shadow: 0 1px 2px rgb(16 24 40 / .06), 0 10px 28px -16px rgb(16 24 40 / .3);
  }
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f6fa;
  --bg-soft: #eef1f7;
  --panel: #ffffff;
  --panel-2: #f4f6fa;
  --panel-3: #e8ecf4;
  --border: #dde3ed;
  --border-strong: #c4ccdb;
  --text: #171a21;
  --muted: #5b6472;
  --faint: #838d9c;
  --accent: #2f62d8;
  --accent-strong: #244fb4;
  --accent-contrast: #ffffff;
  --danger: #c93b3b;
  --danger-strong: #a92e2e;
  --ok: #17864a;
  --warn: #9a6b00;
  --shadow: 0 1px 2px rgb(16 24 40 / .06), 0 10px 28px -16px rgb(16 24 40 / .3);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1115;
  --bg-soft: #12151b;
  --panel: #171a21;
  --panel-2: #1e222b;
  --panel-3: #252a35;
  --border: #2a2f3a;
  --border-strong: #39404f;
  --text: #e7e9ee;
  --muted: #9aa3b2;
  --faint: #6c7686;
  --accent: #6d9bff;
  --accent-strong: #4f7ff0;
  --accent-contrast: #0b1020;
  --danger: #ff7a7a;
  --danger-strong: #e05555;
  --ok: #56d98a;
  --warn: #f0c05a;
  --shadow: 0 1px 2px rgb(0 0 0 / .25), 0 8px 24px -12px rgb(0 0 0 / .5);
}

/* ══ Reset ══════════════════════════════════════════════════════ */

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

/* A class-level `display` beats the user-agent rule for [hidden], which would
   otherwise leave hidden overlays and panels laid out and swallowing clicks. */
[hidden] { display: none !important; }

body {
  margin: 0;
  padding: 0 1rem 8rem;
  background:
    radial-gradient(1200px 600px at 50% -280px, color-mix(in srgb, var(--accent) 10%, transparent), transparent),
    var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  -webkit-text-size-adjust: 100%;
}

main, .topbar, footer { max-width: var(--content); margin-inline: auto; }

h1, h2, h3, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }

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

.skip-link {
  position: absolute;
  left: .5rem; top: -4rem;
  z-index: 100;
  padding: .6rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-contrast);
  font-weight: 600;
  text-decoration: none;
  transition: top var(--speed);
}
.skip-link:focus { top: .5rem; }

:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: none;
  box-shadow: var(--ring);
  border-radius: var(--radius-sm);
}

/* ══ Header ═════════════════════════════════════════════════════ */

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 2.25rem 0 1.5rem;
}

.brand { display: flex; align-items: center; gap: .85rem; }
.brand-mark {
  width: 40px; height: 40px;
  flex: none;
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.brand-mark .fill { fill: var(--accent); stroke: none; }

.topbar h1 { font-size: 1.6rem; letter-spacing: -.022em; line-height: 1.15; }
.tagline { color: var(--muted); font-size: .95rem; }

.topbar-actions { display: flex; align-items: center; gap: .5rem; }

.theme-toggle {
  display: inline-flex;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
}
.theme-toggle button {
  padding: .3rem .7rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: .78rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--speed), color var(--speed);
}
.theme-toggle button:hover { color: var(--text); }
.theme-toggle button[aria-checked="true"] {
  background: var(--panel-3);
  color: var(--text);
}

/* ══ Drop zone ══════════════════════════════════════════════════ */

.dropzone {
  display: grid;
  place-items: center;
  gap: .2rem;
  padding: 2.75rem 1rem;
  margin-bottom: 1.1rem;
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--panel);
  cursor: pointer;
  transition: border-color var(--speed), background var(--speed), transform var(--speed);
}
.dropzone:hover { border-color: var(--accent); background: var(--bg-soft); }
.dropzone.dragover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, var(--panel));
  transform: scale(1.004);
}
.drop-icon {
  width: 34px; height: 34px;
  fill: none; stroke: var(--accent);
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}
.drop-title { margin-top: .55rem; font-weight: 650; }
.drop-sub { color: var(--muted); font-size: .85rem; }

.drop-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(3px);
}
.drop-overlay-inner {
  padding: 3rem 4rem;
  border: 2px dashed var(--accent);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 650;
  box-shadow: var(--shadow);
}

kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: .1em .4em;
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--panel-2);
  font: inherit;
  font-size: .78em;
  text-align: center;
}
kbd + kbd { margin-left: 2px; }

/* ══ Privacy notice ═════════════════════════════════════════════ */

/*
 * Deliberately above the dropzone rather than in the footer. People are about
 * to hand this thing a photograph of their face for a government form, and the
 * answer to "where does it go" should arrive before the question does.
 */
.privacy {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  padding: .8rem 1rem;
  margin-bottom: 1.1rem;
  border: 1px solid color-mix(in srgb, var(--ok) 35%, var(--border));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--ok) 8%, var(--panel));
  font-size: .82rem;
  line-height: 1.5;
  color: var(--muted);
}
.privacy strong { color: var(--text); }

.privacy-mark {
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: .1rem;
  fill: none;
  stroke: var(--ok);
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.camera-privacy {
  margin-top: .7rem;
  font-size: .76rem;
  line-height: 1.45;
  color: var(--faint);
}

/* ══ Panels & fields ════════════════════════════════════════════ */

.panel {
  padding: 1.15rem 1.25rem 1.35rem;
  margin-bottom: 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.panel > h2 {
  margin-bottom: .9rem;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--faint);
}

.group {
  margin: 0 0 1.15rem;
  padding: 0;
  border: 0;
  border-top: 1px solid var(--border);
  padding-top: 1.05rem;
}
.group:first-of-type { border-top: 0; padding-top: 0; }
.group:last-child { margin-bottom: 0; }
.group > legend,
.advanced > summary {
  padding: 0 0 .7rem;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--faint);
}
.advanced > summary { cursor: pointer; padding-bottom: 0; }
.advanced[open] > summary { padding-bottom: .9rem; }
.advanced > summary::marker { color: var(--faint); }

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(215px, 1fr));
  gap: 1rem 1.35rem;
  align-items: start;
}

.field { display: flex; flex-direction: column; gap: .4rem; min-width: 0; }
.field > label { font-size: .82rem; font-weight: 650; color: var(--muted); }
.field > label output { float: right; color: var(--text); }
.hint { font-size: .76rem; line-height: 1.45; color: var(--faint); }
.hint code {
  padding: .05em .3em;
  border-radius: 4px;
  background: var(--panel-3);
  font-size: .95em;
}

.inline-field { display: flex; align-items: center; gap: .5rem; }

select, input[type="number"], input[type="text"] {
  width: 100%;
  padding: .5rem .6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  font-size: .92rem;
  transition: border-color var(--speed);
}
select:hover, input[type="number"]:hover, input[type="text"]:hover { border-color: var(--border-strong); }
select:disabled, input:disabled { opacity: .5; cursor: not-allowed; }

input[type="range"] {
  width: 100%;
  height: 1.2rem;
  accent-color: var(--accent);
  cursor: pointer;
}

input[type="color"] {
  width: 46px; height: 34px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  cursor: pointer;
}

output { font-variant-numeric: tabular-nums; font-weight: 650; }

.checkbox {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .9rem;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
}
.checkbox input { width: 1rem; height: 1rem; accent-color: var(--accent); cursor: pointer; }

.color-row { display: flex; align-items: center; gap: .65rem; }
.color-row .hint { flex: 1; }

.segmented {
  display: inline-flex;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
}
.segmented button {
  flex: 1;
  padding: .38rem .6rem;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: .82rem;
  font-weight: 650;
  cursor: pointer;
  transition: background var(--speed), color var(--speed);
  white-space: nowrap;
}
.segmented button:hover { color: var(--text); }
.segmented button[aria-checked="true"], .segmented button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-contrast);
}

/* ══ Presets ════════════════════════════════════════════════════ */

.presets-panel { padding-bottom: 1.15rem; }
.presets { display: flex; flex-wrap: wrap; gap: .55rem; }

.preset {
  display: flex;
  flex-direction: column;
  gap: .1rem;
  padding: .5rem .85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color var(--speed), background var(--speed), transform var(--speed);
}
.preset:hover { border-color: var(--accent); transform: translateY(-1px); }
.preset[aria-pressed="true"] {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, var(--panel-2));
}
.preset strong { font-size: .88rem; font-weight: 650; }
.preset span { font-size: .74rem; color: var(--muted); }

/* ══ Document photo standards ═══════════════════════════════════ */

.doc-panel .settings-grid { align-items: start; }
.doc-panel #document-reapply { align-self: flex-start; }
.doc-panel .advice { margin-top: .9rem; }
.doc-panel > .hint { margin-top: .55rem; }

.doc-list > label { font-size: .82rem; font-weight: 650; color: var(--muted); }

.doc-reqs {
  display: flex;
  flex-direction: column;
  gap: .28rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: .78rem;
  line-height: 1.45;
  color: var(--faint);
}
.doc-reqs li { padding-left: 1.05rem; text-indent: -1.05rem; }
.doc-reqs li::before { content: "•"; margin-right: .55rem; color: var(--border-strong); }
.doc-reqs.ok { color: var(--muted); }
.doc-reqs.ok li::before { content: "✓"; color: var(--ok); }

.doc-background {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  margin-top: 1.05rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.doc-background .hint { max-width: 68ch; }

.tolerance-row {
  display: flex;
  align-items: center;
  gap: .7rem;
  max-width: 24rem;
}
.tolerance-row label { font-size: .82rem; font-weight: 650; color: var(--muted); white-space: nowrap; }
.tolerance-row input { flex: 1; }
.tolerance-row output { min-width: 2.2ch; text-align: right; }

/* ══ Guided camera capture ══════════════════════════════════════ */

.doc-buttons { display: flex; flex-wrap: wrap; gap: .5rem; }

.camera {
  width: min(560px, 94vw);
  padding: 1rem 1.15rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow);
}
.camera::backdrop { background: rgb(0 0 0 / .62); backdrop-filter: blur(2px); }

.camera-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: .5rem;
}
.camera-head h2 { font-size: .95rem; }
.camera > .hint { margin-bottom: .8rem; }

.camera-stage {
  position: relative;
  aspect-ratio: var(--shot-aspect, 1);
  max-height: 58vh;
  margin-inline: auto;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: #1b1d23;
}
.camera-stage video,
.camera-stage img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/*
 * The preview only. `drawImage` samples the track rather than the rendered
 * element, so this never reaches the captured file — which is the point: a
 * document photo must not be a mirror image, and a preview must be one.
 */
.camera-stage video.mirrored { transform: scaleX(-1); }

.camera-guide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.camera-guide .guide-head {
  fill: none;
  stroke: #fff;
  stroke-width: 3;
  stroke-dasharray: 14 10;
  opacity: .9;
}
.camera-guide .guide-band { fill: rgb(255 255 255 / .14); }
.camera-guide .guide-edge {
  stroke: #fff;
  stroke-width: 2;
  stroke-dasharray: 8 8;
  opacity: .8;
}
.camera-guide .guide-tick { stroke: var(--accent); stroke-width: 5; }
.camera-guide .guide-eyes {
  stroke: #fff;
  stroke-width: 2;
  stroke-dasharray: 2 10;
  opacity: .75;
}
.camera-guide .guide-label {
  fill: #fff;
  opacity: .85;
  font-family: inherit;
  font-weight: 650;
  letter-spacing: .04em;
}

.camera-error { margin-top: .7rem; font-size: .82rem; color: var(--danger); }
.camera-note { margin-top: .7rem; font-size: .78rem; color: var(--warn); }

.camera-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem;
  margin-top: .9rem;
}
.camera-device { flex: 1 1 12rem; min-width: 0; }

/* ══ Buttons ════════════════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .55rem 1.05rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  font-size: .92rem;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background var(--speed), border-color var(--speed), opacity var(--speed), transform var(--speed);
}
.btn:hover:not(:disabled) { border-color: var(--accent); transform: translateY(-1px); }
.btn:active:not(:disabled) { transform: translateY(0); }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-contrast); }
.btn.primary:hover:not(:disabled) { background: var(--accent-strong); border-color: var(--accent-strong); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.danger:hover:not(:disabled) { background: var(--danger-strong); border-color: var(--danger-strong); }
.btn.ghost { background: transparent; border-color: var(--border); }
.btn.small { padding: .34rem .7rem; font-size: .8rem; }

/* ══ Run bar ════════════════════════════════════════════════════ */

.runbar {
  position: sticky;
  bottom: .75rem;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: .8rem 1rem;
  margin-bottom: 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}
.runbar-actions { display: flex; flex-wrap: wrap; gap: .55rem; }
.runbar-progress { flex: 1; min-width: 190px; display: flex; flex-direction: column; gap: .35rem; }

.progress {
  height: 6px;
  border-radius: 999px;
  background: var(--panel-3);
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  transition: width var(--speed) linear;
}

.advice { font-size: .78rem; color: var(--warn); }
.status { min-height: 1.2rem; font-size: .84rem; color: var(--muted); }
.status.error { color: var(--danger); }
.status.done { color: var(--ok); }
.status.warn { color: var(--warn); }

/* ══ Results ════════════════════════════════════════════════════ */

.results-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: .9rem;
}
.results-head h2 { margin: 0; }
.count { color: var(--faint); font-weight: 500; }
.savings {
  font-size: .84rem;
  font-weight: 650;
  color: var(--ok);
  font-variant-numeric: tabular-nums;
}

.results { display: grid; gap: .65rem; }

.card {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) auto;
  align-items: center;
  gap: .95rem;
  padding: .7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  transition: border-color var(--speed), background var(--speed);
  animation: card-in .22s ease both;
}
.card[data-state="running"] { border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }
.card[data-state="done"] { border-color: color-mix(in srgb, var(--ok) 32%, var(--border)); }
.card[data-state="error"] { border-color: color-mix(in srgb, var(--danger) 45%, var(--border)); }

@keyframes card-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

.thumb {
  position: relative;
  width: 76px; height: 76px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  cursor: zoom-in;
  background-color: #80808022;
  background-image:
    linear-gradient(45deg, #8884 25%, transparent 25%, transparent 75%, #8884 75%),
    linear-gradient(45deg, #8884 25%, transparent 25%, transparent 75%, #8884 75%);
  background-size: 14px 14px;
  background-position: 0 0, 7px 7px;
}
.thumb img { max-width: 100%; max-height: 100%; display: block; }
.thumb:disabled { cursor: default; }

.thumb-spinner {
  position: absolute;
  inset: 0;
  display: none;
  background: color-mix(in srgb, var(--panel) 62%, transparent);
}
.thumb-spinner::after {
  content: "";
  position: absolute;
  inset: 50% auto auto 50%;
  width: 20px; height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
.card[data-state="running"] .thumb-spinner { display: block; }

@keyframes spin { to { transform: rotate(360deg); } }

.card-body { min-width: 0; display: flex; flex-direction: column; gap: .12rem; }
.card-name {
  font-weight: 650;
  font-size: .93rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.card-meta { font-size: .8rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.card-meta.converted { color: var(--text); }
.card-note { font-size: .76rem; color: var(--warn); }
.card-error { font-size: .8rem; color: var(--danger); }

.card-check {
  margin-top: .2rem;
  font-size: .76rem;
  font-weight: 600;
  line-height: 1.45;
}
.card-check::before { margin-right: .3em; }
.card-check[data-ok="true"] { color: var(--ok); }
.card-check[data-ok="true"]::before { content: "✓"; }
.card-check[data-ok="false"] { color: var(--danger); }
.card-check[data-ok="false"]::before { content: "✕"; }

.delta {
  display: inline-block;
  margin-left: .35rem;
  padding: .02em .4em;
  border-radius: 999px;
  font-size: .74rem;
  font-weight: 700;
}
.delta.down { background: color-mix(in srgb, var(--ok) 18%, transparent); color: var(--ok); }
.delta.up { background: color-mix(in srgb, var(--danger) 18%, transparent); color: var(--danger); }
.delta.same { background: var(--panel-3); color: var(--muted); }

.card-actions { display: flex; flex-direction: column; gap: .4rem; }

/* ══ Compare dialog ═════════════════════════════════════════════ */

.compare {
  width: min(880px, 94vw);
  padding: 1rem 1.15rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow);
}
.compare::backdrop { background: rgb(0 0 0 / .62); backdrop-filter: blur(2px); }

.compare-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: .85rem;
}
.compare-head h2 {
  font-size: .95rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.compare-stage {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background-color: #80808022;
  background-image:
    linear-gradient(45deg, #8884 25%, transparent 25%, transparent 75%, #8884 75%),
    linear-gradient(45deg, #8884 25%, transparent 25%, transparent 75%, #8884 75%);
  background-size: 18px 18px;
  background-position: 0 0, 9px 9px;
  line-height: 0;
}
.compare-stage img {
  width: 100%;
  max-height: 62vh;
  object-fit: contain;
  display: block;
}

/* The converted image sits exactly on top of the original and is revealed by
   clipping, so both stay in the same box no matter the slider position. */
img.compare-after {
  position: absolute;
  inset: 0;
  height: 100%;
  clip-path: inset(0 calc(100% - var(--pos, 50%)) 0 0);
}
.compare-handle {
  position: absolute;
  top: 0; bottom: 0;
  left: var(--pos, 50%);
  width: 2px;
  margin-left: -1px;
  background: var(--accent);
  pointer-events: none;
}
.compare-handle::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 26px; height: 26px;
  margin: -13px 0 0 -13px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--panel);
}

#compare-range { margin-top: .8rem; }

.compare-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: .3rem;
  font-size: .8rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ══ Base64 dialog ══════════════════════════════════════════════ */

dialog.base64 {
  width: min(760px, 94vw);
  padding: 1rem 1.15rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow);
}
dialog.base64::backdrop { background: rgb(0 0 0 / .62); backdrop-filter: blur(2px); }

.base64-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: .85rem;
}
.base64-head h2 {
  font-size: .95rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.base64-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem .7rem;
  margin-bottom: .7rem;
}
.base64-controls label { font-size: .82rem; color: var(--muted); }
.base64-controls select { width: auto; min-width: 11rem; }
.base64-controls .hint { flex: 1 1 14rem; margin: 0; }

#base64-text {
  width: 100%;
  height: min(38vh, 260px);
  resize: vertical;
  padding: .6rem .7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .76rem;
  line-height: 1.45;
  /* The text is one very long token; without this it scrolls sideways. */
  overflow-wrap: anywhere;
}

.base64-actions {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-top: .7rem;
}
.base64-meta {
  flex: 1;
  font-size: .78rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.base64-status {
  margin-top: .45rem;
  min-height: 1.1rem;
  font-size: .78rem;
  color: var(--muted);
}
.base64-status[data-kind="done"] { color: var(--ok); }
.base64-status[data-kind="warn"] { color: var(--warn); }
.base64-status[data-kind="error"] { color: var(--danger); }

/* ══ Footer ═════════════════════════════════════════════════════ */

footer {
  margin-top: 2.5rem;
  display: grid;
  gap: .45rem;
  text-align: center;
  font-size: .8rem;
  color: var(--faint);
}
.shortcuts { color: var(--muted); }
.engine { font-size: .74rem; }

/* ══ Responsive ═════════════════════════════════════════════════ */

@media (max-width: 560px) {
  body { padding-bottom: 9rem; }
  .topbar { padding-top: 1.5rem; }
  .topbar h1 { font-size: 1.35rem; }
  .card { grid-template-columns: 56px minmax(0, 1fr); }
  .thumb { width: 56px; height: 56px; }
  .card-actions { grid-column: 1 / -1; flex-direction: row; }
  .card-actions .btn { flex: 1; }
  .runbar { bottom: 0; border-radius: var(--radius) var(--radius) 0 0; }
  .runbar-actions { width: 100%; }
  .runbar-actions .btn { flex: 1; }
  .base64-actions { flex-wrap: wrap; }
  .base64-meta { flex: 1 0 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .runbar, .dropzone, .presets-panel, .topbar-actions, .card-actions,
  .privacy { display: none; }
}