:root {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color: var(--ink);
  background: var(--surface);
  color-scheme: light;
  font-size: 15px;
  line-height: 1.5;
  font-synthesis: none;
  --ink: #22231f;
  --green: var(--ink);
  --muted: #6b6b62;
  --border: #d9d7ce;
  --surface: #f7f6f1;
  --soft: #eae8df;
  --elevated: #fffefa;
  --field: #fffefa;
  --field-border: #c8c7bd;
  --viewer: #eeece4;
  --primary-text: #fffef9;
  --primary-hover: #41423a;
  --secondary-hover: #dedccf;
  --focus: #807e70;
  --success: #4b5940;
  --success-bg: #eceee5;
  --warning: #8b542d;
  --warning-bg: #f2e9dc;
  --swatch-border: #24241d25;
  --shadow: #24241920;
  --amber: #a86a16;
  --accent: #397bf0;
  --scan-glow: #5a9efc26;
  --scan-shadow: #243b5f2b;
  --brand: #b83a28;
  --brand-hover: #9c2f20;
  --brand-text: #fffaf2;
  --brand-soft: #f6e3d9;
  --display: ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --ink: #e9ede9;
  --muted: #9ca9b9;
  --border: #303c4c;
  --surface: #111822;
  --soft: #232e3d;
  --elevated: #1c2634;
  --field: #1b2634;
  --field-border: #415065;
  --viewer: #182230;
  --primary-text: #141c27;
  --primary-hover: #d1d9d4;
  --secondary-hover: #2d3c4f;
  --focus: #8cb7db;
  --success: #b4cdb2;
  --success-bg: #20312d;
  --warning: #e7bc85;
  --warning-bg: #352e26;
  --swatch-border: #d5e0ed48;
  --shadow: #00000050;
  --amber: #deb46d;
  --accent: #71adff;
  --scan-glow: #438aff32;
  --scan-shadow: #00000066;
  --brand: #f0705b;
  --brand-hover: #f48b78;
  --brand-text: #1b0f0c;
  --brand-soft: #3a2420;
}

* { box-sizing: border-box; }
body { margin: 0; }
[hidden] { display: none !important; }
a { color: inherit; text-underline-offset: 4px; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: 38px; line-height: 1.08; font-weight: 500; letter-spacing: -1.7px; }
h2 { font-size: 15px; line-height: 1.4; margin-bottom: 12px; font-weight: 600; }
h3 { font-size: 14px; font-weight: 600; margin-bottom: 16px; }
button, input, select, output { font: inherit; }
button, summary, a, input, select { -webkit-tap-highlight-color: transparent; }
button { padding: 10px 17px; border: 0; border-radius: 999px; background: transparent; color: inherit; font-size: 13px; line-height: 1.4; font-weight: 500; cursor: pointer; }
button:disabled { opacity: .35; cursor: not-allowed; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; }
input[type="checkbox"]:focus-visible, input[type="radio"]:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
.primary { background: var(--brand); color: var(--brand-text); }
.primary:hover:not(:disabled) { background: var(--brand-hover); }
.secondary { background: var(--soft); color: var(--ink); }
.secondary:hover:not(:disabled) { background: var(--secondary-hover); }
.text-button { padding: 7px 0; color: var(--muted); font-size: 13px; text-decoration: underline; text-underline-offset: 4px; }
.text-button:hover:not(:disabled) { color: var(--ink); }
.full { width: 100%; }
label { display: flex; flex-direction: column; gap: 7px; margin-bottom: 16px; font-size: 13px; font-weight: 500; }
/* One field shape everywhere: a fully rounded box with a border that darkens on hover and focus. */
input, select { min-width: 0; width: 100%; height: 38px; padding: 0 11px; border: 1px solid var(--field-border); border-radius: 9px; background: var(--field); color: var(--ink); font-size: 14px; transition: border-color 120ms ease, box-shadow 120ms ease; }
input:hover:not(:disabled), select:hover:not(:disabled) { border-color: var(--muted); }
input:focus, select:focus { outline: none; border-color: var(--focus); box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 28%, transparent); }
input:disabled, select:disabled { opacity: .5; cursor: not-allowed; }
input:invalid:not(:placeholder-shown) { border-color: var(--warning); }
input::placeholder { color: var(--muted); opacity: .8; }
/* Numbers are typed, stepped with the arrow keys, or set with their slider; native spinners are hidden. */
input[type="number"] { appearance: textfield; font-variant-numeric: tabular-nums; }
input[type="number"]::-webkit-inner-spin-button, input[type="number"]::-webkit-outer-spin-button { appearance: none; margin: 0; }
input[type="checkbox"], input[type="radio"] { width: 16px; height: 16px; margin: 0; padding: 0; flex-shrink: 0; border: 0; box-shadow: none; accent-color: var(--brand); cursor: pointer; }
input[type="color"] { width: 44px; padding: 3px; cursor: pointer; }
input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"]::-webkit-color-swatch { border: 0; border-radius: 6px; }
input[type="color"]::-moz-color-swatch { border: 0; border-radius: 6px; }
/* Sliders: a thin track and a round thumb, the same in every browser and theme. */
input[type="range"] { height: 22px; padding: 0; border: 0; border-radius: 0; background: transparent; appearance: none; cursor: pointer; }
input[type="range"]:focus { box-shadow: none; }
input[type="range"]::-webkit-slider-runnable-track { height: 4px; border-radius: 2px; background: var(--field-border); }
input[type="range"]::-moz-range-track { height: 4px; border-radius: 2px; background: var(--field-border); }
input[type="range"]::-webkit-slider-thumb { width: 18px; height: 18px; margin-top: -7px; border: 2px solid var(--surface); border-radius: 50%; background: var(--ink); box-shadow: 0 1px 4px var(--shadow); appearance: none; transition: transform 120ms ease; }
input[type="range"]::-moz-range-thumb { width: 14px; height: 14px; border: 2px solid var(--surface); border-radius: 50%; background: var(--ink); box-shadow: 0 1px 4px var(--shadow); }
input[type="range"]:hover:not(:disabled)::-webkit-slider-thumb { transform: scale(1.12); }
input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 4px color-mix(in srgb, var(--focus) 35%, transparent); }
input[type="range"]:focus-visible::-moz-range-thumb { box-shadow: 0 0 0 4px color-mix(in srgb, var(--focus) 35%, transparent); }
.check { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; cursor: pointer; }
.check:has(input:disabled) { opacity: .45; cursor: default; }
summary { cursor: pointer; font-size: 13px; font-weight: 500; }
summary::marker { color: var(--muted); }
details > summary { margin-bottom: 0; }
details[open] > summary { margin-bottom: 14px; }
.hint { color: var(--muted); font-size: 13px; line-height: 1.6; margin: 10px 0 15px; }
.muted { color: var(--muted); font-size: 13px; }
.eyebrow { margin: 0 0 8px; color: var(--muted); font-size: 12px; font-weight: 500; letter-spacing: 1.5px; text-transform: uppercase; }
.quiet-link { color: var(--muted); font-size: 13px; white-space: nowrap; }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 14px; }
.field-row { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 10px; }
.field-row label { flex: 1; min-width: 0; margin: 0; }
.inset-label { flex-direction: row; align-items: center; justify-content: space-between; }
.inset-label input { width: 76px; }

/* A quiet page shell, with project actions kept at the edge. */
header { display: flex; align-items: center; justify-content: space-between; min-height: 60px; gap: 20px; padding: 12px 32px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-size: 27px; line-height: 1.2; }
.brand span { font-size: 15px; font-weight: 550; letter-spacing: -.5px; }
.brand b { font-weight: 400; color: var(--muted); }
.header-actions { display: flex; align-items: center; gap: 13px; }
#save-status { max-width: 260px; color: var(--muted); text-align: right; font-size: 12px; }
#save-status.save-error { color: var(--warning); }
.project-menu { position: relative; }
.project-menu > summary { display: flex; align-items: center; gap: 9px; padding: 8px; margin: 0; list-style: none; }
.project-menu > summary::-webkit-details-marker { display: none; }
.project-menu > summary:hover { color: var(--muted); }
.menu-content { position: absolute; top: calc(100% + 8px); right: 0; z-index: 30; width: 240px; padding: 8px; background: var(--elevated); border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 10px 36px var(--shadow); }
.menu-content button { display: block; width: 100%; border-radius: 4px; text-align: left; }
.menu-content button:hover:not(:disabled) { background: var(--soft); }
.privacy { color: var(--muted); font-size: 13px; }
main { max-width: 2000px; margin: 0 auto; padding: 0 32px 18px; }
.flow-nav { display: flex; align-items: center; justify-content: flex-start; gap: 24px; padding: 8px 0 14px; }
.flow-nav button[data-step] { display: flex; align-items: center; gap: 7px; padding: 7px 0; border-radius: 0; border-bottom: 1px solid transparent; color: var(--muted); font-size: 13px; font-weight: 400; white-space: nowrap; }
.flow-nav button b { font-weight: inherit; }
.flow-nav button > span { color: inherit; font-size: 12px; font-variant-numeric: tabular-nums; }
.flow-nav button[data-step]:hover:not(:disabled) { color: var(--ink); }
.flow-nav button[aria-current="step"] { color: var(--ink); border-color: var(--ink); }
.view-switch { display: flex; gap: 3px; margin-left: auto; padding: 3px; border-radius: 999px; background: var(--soft); }
.flow-nav .view-switch button { padding: 8px 17px; border: 0; border-radius: 999px; }
.flow-nav .view-switch button[aria-pressed="true"] { background: var(--surface); color: var(--ink); }
.flow-nav .export { margin-left: auto; }
body:has(#editor-shell:not([hidden])) { display: flex; flex-direction: column; height: 100dvh; overflow: hidden; }
body:has(#editor-shell:not([hidden])) > header { flex-shrink: 0; }
main:has(#editor-shell:not([hidden])) { display: flex; flex-direction: column; flex: 1; min-height: 0; width: 100%; }
main:has(#editor-shell:not([hidden])) > :not(.workspace) { flex-shrink: 0; }
main:has(#editor-shell:not([hidden])) > footer { display: none; }
main:has(#editor-shell:not([hidden])) > .workspace { flex: 1; min-height: 0; }
#editor-shell, .editor-layout, .chart-panel, .linked-views { height: 100%; min-height: 0; }
#notice { position: fixed; z-index: 30; bottom: 24px; left: 50%; transform: translateX(-50%); max-width: min(520px, calc(100vw - 40px)); padding: 12px 18px; background: var(--elevated); color: var(--warning); box-shadow: 0 8px 30px #0003; font-size: 13px; }
#notice:empty { display: none; }
#settings-error { color: var(--warning); }
.processing-status { position: absolute; top: 16px; left: 50%; transform: translateX(-50%); z-index: 8; display: flex; align-items: center; gap: 9px; white-space: nowrap; padding: 9px 14px; border-radius: 30px; background: var(--elevated); box-shadow: 0 3px 18px #0002; font-size: 13px; pointer-events: none; }
.spinner { display: inline-block; flex: 0 0 auto; width: 13px; height: 13px; border: 2px solid var(--border); border-top-color: var(--ink); border-radius: 50%; animation: processing-spin .8s linear infinite; }
@keyframes processing-spin { to { transform: rotate(360deg); } }
.updating { opacity: .55; }
.pattern-progress { display: flex; align-items: center; gap: 9px; font-size: 13px; color: var(--muted); }
.pattern-section { position: relative; }
.pattern-progress { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 1; background: var(--surface); padding: 12px 16px; }
.skeleton { background: linear-gradient(110deg, var(--viewer) 25%, var(--elevated) 45%, var(--viewer) 65%); background-size: 250% 100%; animation: skeleton-shimmer 1.5s linear infinite; }
@keyframes skeleton-shimmer { to { background-position: -170% 0; } }
.variant-placeholder { pointer-events: none; }
.instruction-row { content-visibility: auto; contain-intrinsic-size: auto 70px; }
@media (prefers-reduced-motion: reduce) { .spinner, .skeleton { animation: none; } }

#settings-error { padding: 12px; }

/* The welcome screen's layout lives in site.css. */
.intro-copy { color: var(--muted); }
.upload-card { position: relative; }
.upload-progress { position: absolute; left: 0; right: 0; display: flex; justify-content: center; align-items: center; gap: 8px; text-align: center; color: var(--muted); }

/* Source and color choices share one centered scene. */
.scan-screen { --gallery-progress: 0; --sheet-tilt-x: 0deg; --sheet-tilt-y: 0deg; --sheet-scale: 1.08; --source-retreat: -600px; --palette-depth: 80px; --palette-rise: -28px; max-width: 1080px; margin: 18px auto 0; text-align: center; }
.scan-screen.is-scanning { --sheet-tilt-x: 16deg; --sheet-tilt-y: -26deg; --sheet-scale: 1; }
.gallery-stage { pointer-events: none; perspective: 1100px; perspective-origin: 50% 42%; transform-style: preserve-3d; }
.scan-heading { display: flex; flex-direction: column; align-items: center; gap: 7px; margin-bottom: 0; }
.scan-heading h1 { margin: 0; font-size: clamp(28px, 3.4vw, 42px); letter-spacing: -1.6px; }
.scan-scene { position: relative; display: grid; place-items: center; height: clamp(250px, 41dvh, 460px); transform-style: preserve-3d; }
.scan-scene::before { content: ""; position: absolute; width: 58%; height: 67%; left: 21%; top: 19%; border-radius: 50%; background: radial-gradient(ellipse, var(--scan-glow), transparent 70%); filter: blur(28px); pointer-events: none; }
.scan-sheet { pointer-events: auto; position: relative; width: max-content; max-width: 80%; border-radius: 5px; transform-style: preserve-3d; transform: translateZ(calc(var(--gallery-progress) * var(--source-retreat))) rotateY(calc(var(--hover-x, 0) * 4deg)) rotateX(calc(var(--hover-y, 0) * -3deg)); opacity: calc(1 - var(--gallery-progress) * .94); transition: transform 180ms ease-out, opacity 180ms linear; animation: sheet-float 5s ease-in-out infinite alternate; }
.scan-pose { position: relative; border-radius: inherit; transform-style: preserve-3d; transform: rotateY(var(--sheet-tilt-y)) rotateX(var(--sheet-tilt-x)) scale(var(--sheet-scale)); transition: transform 700ms cubic-bezier(.22, 1, .36, 1); }
.scan-pose::before { content: ""; position: absolute; inset: 0; border-radius: inherit; background: var(--field-border); transform: translateZ(-4px); box-shadow: 26px 30px 46px var(--scan-shadow); }
.scan-face { position: relative; padding: 5px; overflow: hidden; border: 1px solid #79baff92; border-radius: inherit; background: var(--elevated); box-shadow: 0 0 0 1px #a7d6ff14, 3px 5px 23px #3f9eff25; }
#scan-image { display: block; max-width: min(520px, 63vw); max-height: clamp(240px, 36dvh, 385px); width: auto; height: auto; background: #fff; }
.scan-face::after { content: ""; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 18px #6bb6ff20; background: linear-gradient(128deg, #93cbff0c, transparent 35%, transparent 70%, #4c9fff08); }
.scan-light { display: none; position: absolute; z-index: 2; left: 0; right: 0; top: 0; height: 22%; pointer-events: none; border-bottom: 1px solid #c9eaff; background: linear-gradient(transparent, #398fff17 45%, #51aaff5c 92%, #b2e4ffd9); box-shadow: 0 4px 18px #329effa8; mix-blend-mode: screen; }
.scan-screen.is-scanning .scan-light { display: block; animation: scan-sweep 2.8s linear infinite; }
#scan-status { min-height: 16px; margin: 0; color: var(--muted); font-size: 13px; }
.variant-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; max-width: min(1020px, 92%); margin: 13px auto 0; transform-style: preserve-3d; transform: translate3d(0, calc(var(--gallery-progress) * var(--palette-rise)), calc(var(--gallery-progress) * var(--palette-depth))); transition: transform 180ms ease-out; }
.variant-card { pointer-events: auto; display: flex; flex-direction: column; min-width: 0; padding: 10px; border: 1px solid var(--border); border-radius: 17px; background: var(--elevated); text-align: left; transform: translateZ(var(--hover-depth, 0px)) rotateX(calc(var(--hover-y, 0) * -3deg)) rotateY(calc(var(--hover-x, 0) * 4deg)); transition: transform 220ms ease-out, box-shadow 220ms ease-out, border-color 220ms ease-out; }
.variant-card:focus-visible { --hover-depth: 12px; }
@media (hover: hover) and (pointer: fine) {
  .variant-card:hover:not(:disabled):not(.variant-placeholder) { --hover-depth: 12px; animation: card-hover 2.4s ease-in-out infinite alternate; }
}
.variant-preview { display: block; width: 100%; height: clamp(140px, 19dvh, 210px); border-radius: 9px; object-fit: contain; background: var(--viewer); image-rendering: pixelated; }
.variant-caption { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 12px 0 9px; }
.variant-caption strong { font-size: 14px; font-weight: 500; letter-spacing: -.3px; }
.variant-caption span { color: var(--muted); font-size: 11px; }
.variant-swatches { display: flex; gap: 3px; min-height: 8px; margin-top: auto; }
.variant-swatches > i { display: block; flex: 1; height: 8px; border: 1px solid var(--swatch-border); border-radius: 2px; }
.variant-card:hover:not(:disabled), .variant-card[aria-pressed="true"] { border-color: var(--ink); }
.variant-card.recommended { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 0 23px #408fff30; }
.variant-card.recommended .variant-caption span { color: var(--accent); }
.variant-card.recommended:hover:not(:disabled) { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 0 28px #408fff4d; }
.variant-add { align-items: center; border-style: dashed; background: transparent; color: var(--muted); }
.variant-add-mark, .variant-add .variant-preview { display: grid; place-items: center; width: 100%; height: clamp(140px, 19dvh, 210px); background: transparent; font-size: 52px; line-height: 1; font-weight: 300; }
.variant-add .variant-caption { justify-content: center; width: 100%; }
.variant-add .variant-caption strong { font-size: 13px; font-weight: 400; }
#variant-back { margin-top: 14px; }
@keyframes scan-sweep { from { transform: translateY(-115%); } to { transform: translateY(570%); } }
@keyframes sheet-float { from { translate: 0 3px; } to { translate: 0 -3px; } }
@keyframes card-hover { from { translate: 0 -2px; } to { translate: 0 -5px; } }

/* The picture and its color controls sit beside the chart. */
.workspace { min-width: 0; }
.stage-heading, .chart-panel > .panel-heading, .linked-views > section > h2 { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.editor-layout { min-width: 0; }
.panel { min-width: 0; background: transparent; border: 0; border-radius: 0; }
.chart-panel { min-width: 0; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 0 0 13px; }
.panel-heading h2 { min-width: 0; margin: 0; overflow: hidden; color: var(--muted); font-size: 12px; font-weight: 400; text-overflow: ellipsis; white-space: nowrap; }
.panel-heading > .muted { flex-shrink: 0; font-size: 12px; font-variant-numeric: tabular-nums; }
.linked-views { display: grid; grid-template-columns: minmax(280px, min(28%, 360px)) minmax(0, 1fr); align-items: stretch; gap: 24px; padding: 0; }
.original-view, .predicted-view { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.original-view { gap: 12px; }
.original-view > .viewer-shell { flex: 0 0 32%; min-height: 120px; max-height: 240px; }
.stitch-tools { display: flex; flex-direction: column; flex: 1; min-height: 0; overflow: auto; overscroll-behavior: contain; gap: 10px; }
.stitch-tools > * { flex-shrink: 0; }
.stitch-tools > .symbol-workspace { display: flex; flex-direction: column; flex: 1; min-height: 90px; }
.symbol-workspace > .symbols { flex: 1; min-height: 0; overflow: auto; overscroll-behavior: contain; }
.chart-sizing { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 10px; flex-shrink: 0; }
.chart-sizing .range-control { flex: 1; max-width: 430px; grid-template-columns: auto minmax(80px, 1fr) auto; margin: 0; }
.chart-sizing .range-control input[type="range"] { grid-column: 2; grid-row: 1; }
.chart-sizing .range-value { grid-column: 3; }
.chart-sizing .hint { margin: 0; white-space: nowrap; }
.assignment-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin: 0; }
.assignment-actions .primary { flex: 1; }
.assignment-actions #undo-review { margin: 0; }

.viewer-shell { position: relative; min-width: 0; min-height: 0; }
.predicted-view > .viewer-shell { flex: 1; }
.viewer-scroll { height: 100%; min-height: 0; overflow: auto; background: var(--viewer); position: relative; overscroll-behavior: contain; }
.viewer-stage, #chart-stage { position: relative; line-height: 0; margin: 0 auto; max-width: none; }
.viewer-stage canvas { display: block; width: 100%; height: auto; }
#chart { background: #fff; touch-action: none; cursor: crosshair; }
#prediction { image-rendering: pixelated; }
.viewer-scroll.panning, .viewer-scroll.panning .cell { cursor: grabbing; }
.sampling-color canvas, .sampling-color .cell, .viewer-shell.cropping canvas { cursor: crosshair; }
.viewer-shell.cropping .cell { pointer-events: none; }
.viewer-toolbar { position: absolute; z-index: 10; left: 50%; bottom: 13px; display: flex; align-items: center; gap: 1px; width: max-content; max-width: calc(100% - 20px); padding: 4px; border-radius: 999px; background: #272824; color: #f9f8f2; box-shadow: 0 5px 18px #20211b20; transform: translateX(-50%); }
.viewer-shell.crop-dragging .viewer-toolbar { visibility: hidden; pointer-events: none; }
.viewer-toolbar button { display: grid; place-items: center; min-width: 30px; height: 30px; padding: 5px 9px; border-radius: 999px; background: transparent; color: inherit; font-size: 13px; line-height: 1; }
.viewer-toolbar button:hover:not(:disabled) { background: #45463d; }
.viewer-toolbar button:focus-visible { outline-color: #b9c2a4; outline-offset: 1px; }
.zoom-entry { display: flex; align-items: center; font-size: 12px; }
.zoom-entry input { width: 40px; height: 26px; padding: 0 3px; border-color: transparent; border-radius: 6px; background: transparent; color: inherit; text-align: right; font-size: 12px; }
.zoom-entry input:hover:not(:disabled) { border-color: #65665c; }
.zoom-entry input:focus { border-color: #b9c2a4; box-shadow: none; }
.viewer-toolbar #source-zoom-out, .viewer-toolbar #source-zoom-in, .viewer-toolbar #prediction-zoom-out, .viewer-toolbar #prediction-zoom-in { font-size: 18px; font-weight: 400; }
.viewer-toolbar #source-fit, .viewer-toolbar #prediction-fit { margin-left: 3px; padding: 5px 12px; }
.viewer-toolbar button[aria-pressed="true"] { background: #f6f5ed; color: #22231f; }
.crop-actions { position: absolute; z-index: 12; left: 50%; top: 13px; display: flex; align-items: center; gap: 4px; width: max-content; padding: 4px; border-radius: 999px; background: #272824; color: #f9f8f2; transform: translateX(-50%); box-shadow: 0 5px 18px #20211b20; }
#crop-hint { padding: 0 6px 0 10px; color: #d8d8ce; font-size: 12px; white-space: nowrap; }
.crop-actions button { padding: 8px 13px; font-size: 13px; }
#crop-apply { background: #f6f5ed; color: #22231f; }
#crop-cancel { background: transparent; color: inherit; }
#crop-cancel:hover { background: #45463d; }
.selection-controls { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin: 12px 0; }
.selection-controls .check { margin: 0; }
.selection-controls .text-button { padding: 2px 0; }
#image-crop-controls .selection-controls { align-items: stretch; }
#image-crop-controls button { flex: 1; padding: 9px 12px; font-size: 13px; }
.generation-note { padding-left: 11px; margin: 17px 0; border-left: 2px solid #c6a36d; color: var(--muted); font-size: 13px; line-height: 1.6; }
.detection-summary { margin: 17px 0 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.uncertain-cells { padding: 0 0 0 11px; margin: 0 0 18px; border-left: 2px solid #c6a36d; color: var(--warning); font-size: 13px; }
.uncertain-cells p { margin: 0 0 10px; }
.uncertain-cells .check { font-size: 13px; margin: 0; }
.uncertain-cells button { width: 100%; padding: 8px 12px; font-size: 13px; }
#grid-uncertainty { margin: 17px 0 0; }

/* The chart stays visually clean until a stitch is selected. */
.cell-overlay { position: absolute; inset: 0; pointer-events: auto; }
.chart-grid-lines { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; fill: none; stroke: #203a3420; stroke-width: 1; }
.cell-mark { pointer-events: none !important; }
.cell-cursor { border-color: transparent !important; }
.cell-overlay:hover .cell-cursor, .cell-cursor:focus-visible { outline: 1px solid #397bf0; z-index: 5; }
#cell-overlay, .chart-footer { display: none; }
.cell { position: absolute; pointer-events: auto; padding: 0; min-width: 0; border: 1px solid #203a3420; border-radius: 0; background: transparent; }
.cell.active { border: 2px solid #397bf0; box-shadow: inset 0 0 0 1px #fff; z-index: 4; }
.cell.highlight { background: #5774be50; }
.cell:hover { outline: 1px solid #397bf0; z-index: 5; }

/* Palette and assignment controls show color first, with editable labels. */
.palette-controls { margin: 0; }
.palette-controls .field-row { display: flex; flex-wrap: nowrap; align-items: center; gap: 8px; }
.range-control { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 10px; margin: 12px 0 16px; }
.range-control label { margin: 0; }
.range-control input[type="range"] { grid-column: 1 / -1; }
.range-number, .range-value input { width: 76px; height: 34px; padding: 0 10px; text-align: right; }
.range-value { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 13px; }
.range-value input { color: var(--ink); }
.palette-controls .range-control { flex: 1; min-width: 0; grid-template-columns: auto minmax(0, 1fr) 50px; gap: 8px; margin: 0; }
.palette-controls .range-control input[type="range"] { grid-column: 2; grid-row: 1; }
.palette-controls .range-number { grid-column: 3; width: 54px; }
#restore-palette { flex-shrink: 0; padding: 6px; font-size: 18px; text-decoration: none; }
#palette-help { margin-bottom: 0; font-size: 12px; }
.symbol-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.symbol-heading h2 { margin: 0; font-size: 13px; font-weight: 500; }
.symbol-heading .muted { flex-shrink: 0; font-size: 12px; }
#legend-help { font-size: 12px; }
.palette-grid { align-content: start; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 5px 14px; }
.palette-item { display: grid; grid-template-columns: 47px minmax(0, 1fr); gap: 1px 7px; min-width: 0; padding: 6px 0; border-bottom: 1px solid var(--border); }
.color-swatch { display: inline-block; width: 28px; height: 28px; border: 1px solid var(--swatch-border); border-radius: 3px; flex-shrink: 0; }
.palette-choice { display: flex; flex-direction: row; align-items: center; gap: 6px; margin: 0; cursor: pointer; }
.palette-item .color-swatch { width: 25px; height: 37px; }
.palette-item:has(input[type="radio"]:checked) { border-bottom-color: var(--ink); background: var(--soft); }
.palette-item:focus-within { outline: 1px solid var(--focus); outline-offset: 2px; }
.palette-item > label:not(.palette-choice) { min-width: 0; margin: 0; font-size: 11px; white-space: nowrap; gap: 2px; }
.palette-item input:not([type="radio"]) { height: 26px; margin-left: -6px; padding: 0 6px; border-color: transparent; border-radius: 6px; background: transparent; font-size: 13px; }
.palette-item input:not([type="radio"]):hover:not(:focus) { border-color: var(--border); }
.palette-item small { grid-column: 2; color: var(--muted); font-size: 11px; }
.symbol-group { margin-bottom: 18px; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.group-heading { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 13px; }
.group-heading img { width: 38px; height: 38px; object-fit: contain; }
.group-heading strong { font-size: 13px; }
.group-heading > span { margin-left: auto; color: var(--muted); font-size: 12px; }
.symbol-group .field-grid { grid-template-columns: 1fr; }
.symbol-group label:last-child { margin-bottom: 0; }
#cell-correction { padding: 8px 0 0; border-top: 1px solid var(--border); }
#cell-correction[open] > summary { margin-bottom: 7px; }
.selected-stitch-info { display: flex; align-items: center; gap: 9px; }
.selected-stitch-info canvas { display: block; width: 28px; height: 28px; background: var(--soft); }
.selected-stitch-info .hint { margin: 0; }
#cell-correction .selection-controls { margin: 7px 0 0; }
.symbol-editor { min-width: 0; }
.assign-row { display: flex; flex-direction: column; align-items: stretch; gap: 10px; }
.assign-row label { margin: 0; }
#bulk-review { border-top: 1px solid var(--border); padding-top: 15px; margin-top: 17px; }
#bulk-review label { display: grid; grid-template-columns: 1fr auto; }
#bulk-review input { grid-column: 1 / -1; }
#new-symbol { margin-top: 18px; }
#new-symbol .field-grid { grid-template-columns: 1fr; }
#undo-review { margin-top: 8px; }

/* Custom colors share the controls beneath the picture. */
#custom-color-controls { padding-top: 8px; border-top: 1px solid var(--border); }
#custom-color-controls .close-color-editor { display: none; }
#custom-color-controls[open] { padding-bottom: 16px; }
.custom-color-form { display: grid; grid-template-columns: 48px minmax(0, 1fr); align-items: flex-end; }
.custom-color-form label:nth-of-type(3), .custom-color-form button { grid-column: 1 / -1; }
.custom-color-form label { margin: 0; }
#custom-color-controls .hint:last-child { margin-bottom: 0; }
#pick-source-color[aria-pressed="true"] { background: var(--ink); color: var(--primary-text); }

/* Chart and written pattern occupy the same workspace. */
.pattern-section { display: flex; flex-direction: column; min-height: 0; overflow: auto; overscroll-behavior: contain; }
.pattern-section > * { flex-shrink: 0; }
.pattern-heading { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 18px; margin-bottom: 16px; }
.pattern-heading h2 { margin: 0; font-size: 24px; font-weight: 500; letter-spacing: -.7px; }
.pattern-settings { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 18px; margin-bottom: 14px; }
.pattern-settings label { width: 170px; margin: 0; }
.output-state { padding: 0 0 14px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.output-state:empty { display: none; }
.instruction-keys { padding: 10px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.instruction-color-key { display: flex; flex-wrap: wrap; gap: 7px 12px; font-size: 12px; }
.instruction-color-key > span { display: flex; align-items: center; gap: 6px; }
.instruction-color-key .color-swatch { width: 17px; height: 17px; border-radius: 2px; }
.instruction-keys .hint { margin: 10px 0 0; font-size: 12px; }
.instruction-row { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--border); font-size: 14px; line-height: 1.8; }
.instruction-row > strong { display: block; margin-bottom: 4px; color: var(--muted); font-size: 11px; font-weight: 500; letter-spacing: 1px; text-transform: uppercase; }
.token { display: inline; padding: 2px 1px; border: 0; border-radius: 2px; background: transparent; color: var(--ink); font-size: 14px; line-height: inherit; font-weight: 400; text-align: left; }
.token:hover, .token:focus-visible { background: var(--soft); }
.color-token-swatch { display: inline-block; width: 9px; height: 9px; border: 1px solid var(--swatch-border); border-radius: 2px; margin-right: 5px; }
.export { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.export .check { align-items: flex-start; font-size: 13px; line-height: 1.6; }
.export .check input { margin-top: 2px; }
.export .hint { margin: 4px 0 0; font-size: 12px; }

/* Drawers and confirmations are the only elevated surfaces. */
dialog { background: var(--surface); color: var(--ink); border: 1px solid var(--border); }
dialog::backdrop { background: #22231f55; }
.settings-dialog { position: fixed; inset: 0 0 0 auto; width: 420px; max-width: 100vw; height: 100dvh; max-height: 100dvh; margin: 0; padding: 28px; border-width: 0 0 0 1px; border-radius: 0; overflow: auto; overscroll-behavior: contain; }
.dialog-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.dialog-heading h2 { margin: 0; font-size: 27px; font-weight: 500; letter-spacing: -1px; }
.settings-dialog > section { padding-top: 23px; margin-top: 24px; border-top: 1px solid var(--border); }
.settings-dialog .hint { font-size: 13px; }
.settings-dialog #recrop { margin: 0 0 18px; }
#pdf-controls { margin-top: 14px; }
.confirmation-dialog { width: 450px; max-width: calc(100vw - 32px); max-height: calc(100dvh - 32px); overflow: auto; padding: 26px; border-radius: 18px; background: var(--elevated); box-shadow: 0 24px 60px -24px var(--shadow); font-size: 14px; line-height: 1.6; }
.confirmation-dialog h2 { font-family: var(--display); font-size: 21px; font-weight: 650; letter-spacing: -.02em; }
.variant-count-dialog { width: 380px; max-width: calc(100vw - 32px); padding: 22px 24px 24px; border-radius: 18px; background: var(--elevated); box-shadow: 0 24px 60px -24px var(--shadow); }
.variant-count-dialog h2 { margin: 0; font-family: var(--display); font-size: 21px; font-weight: 650; letter-spacing: -.02em; }
.variant-count-dialog .dialog-heading { margin-bottom: 14px; }
.variant-count-dialog input[type="range"] { width: 100%; }
.variant-count-dialog .confirmation-actions { margin-top: 22px; }
.confirmation-color { display: flex; align-items: center; gap: 10px; }
.confirmation-actions { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 8px; margin-top: 24px; }

.benchmark { max-width: 1100px; padding-top: 38px; }
.benchmark h1 { margin-bottom: 18px; }
.benchmark > p { color: var(--muted); }
.benchmark .panel { padding: 24px 0; margin: 22px 0; border-top: 1px solid var(--border); overflow-x: auto; }
.benchmark table { width: 100%; border-collapse: collapse; font-size: 14px; }
.benchmark th, .benchmark td { padding: 12px; text-align: left; border-bottom: 1px solid var(--border); }
.benchmark img { max-width: 100%; max-height: 400px; object-fit: contain; }
.benchmark pre { white-space: pre-wrap; font-size: 13px; }
.benchmark button { margin-right: 8px; }
.fixture-row { padding-top: 18px; margin-top: 18px; border-top: 1px solid var(--border); }

@media (min-width: 1600px) {
  header { padding-right: 40px; padding-left: 40px; }
  main { padding-right: 40px; padding-left: 40px; }
  .linked-views { gap: 30px; }
}

@media (max-width: 1100px) {
  header { padding: 12px 22px; }
  main { padding: 0 22px 18px; }
  .linked-views { grid-template-columns: 280px minmax(0, 1fr); gap: 20px; }
  .chart-sizing { flex-wrap: wrap; gap: 8px; }
  .palette-item label, .palette-item small { font-size: 12px; }
  #save-status { max-width: 190px; }
  .viewer-toolbar { gap: 0; padding: 3px; }
  .viewer-toolbar button { min-width: 26px; padding-right: 7px; padding-left: 7px; }
  .viewer-toolbar #source-fit, .viewer-toolbar #prediction-fit { padding-right: 9px; padding-left: 9px; }
}

@media (max-width: 900px) {
  .variant-grid { gap: 14px; }
  .chart-sizing .range-control { min-width: 0; }
}

@media (max-width: 600px) {
  .scan-screen { margin-top: 10px; }
  .scan-heading { gap: 8px; }
  .scan-heading h1 { font-size: 28px; letter-spacing: -1.1px; }
  .scan-scene { height: 200px; }
  #scan-image { max-width: 60vw; max-height: 170px; }
  .variant-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 14px; margin-top: 10px; }
  .variant-card { padding: 8px; border-radius: 13px; }
  .variant-preview, .variant-add-mark, .variant-add .variant-preview { height: 112px; }
  .variant-caption { margin-top: 10px; gap: 4px; }
  .variant-caption strong { font-size: 13px; }
  .variant-caption span { font-size: 11px; }
  header { padding: 14px 16px; gap: 10px; flex-wrap: wrap; }
  .brand { font-size: 24px; }
  .brand span { font-size: 14px; }
  .header-actions { width: 100%; gap: 8px; }
  #save-status { margin-right: auto; max-width: 55%; text-align: left; font-size: 11px; }
  .header-actions > button, .project-menu > summary { font-size: 13px; padding: 6px; }
  main { padding: 0 16px 16px; }
  .flow-nav { justify-content: flex-start; gap: 19px; padding: 6px 0 14px; overflow-x: auto; }
  .flow-nav button { font-size: 12px; gap: 5px; }
  #notice { font-size: 12px; }
  .linked-views { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 3fr) minmax(0, 2fr); gap: 14px; }
  .original-view { grid-row: 2; display: grid; grid-template-columns: minmax(110px, 2fr) minmax(0, 3fr); gap: 12px; }
  .original-view > .viewer-shell { min-height: 0; max-height: none; }
  .original-view .viewer-toolbar { flex-wrap: wrap; justify-content: center; border-radius: 12px; }
  .predicted-view, .pattern-section { grid-row: 1; grid-column: 1; }
  .view-switch { margin: 0; }
  .flow-nav { display: grid; grid-template-columns: auto 1fr; gap: 8px; overflow: visible; }
  .flow-nav .view-switch { grid-row: 2; grid-column: 1 / -1; justify-self: center; }
  .flow-nav .export { grid-row: 1; grid-column: 2; }
  .palette-grid { grid-template-columns: 1fr; }
  .pattern-heading { margin-bottom: 8px; }
  .pattern-heading h2 { font-size: 20px; }
  .pattern-settings { margin-bottom: 8px; }
  /* On phones the written pattern gets the whole workspace. */
  .linked-views:has(#knitting-pattern:not([hidden])) { grid-template-rows: minmax(0, 1fr); }
  .linked-views:has(#knitting-pattern:not([hidden])) > .original-view { display: none; }
  .panel-heading > .muted { font-size: 11px; }
  .instruction-row { grid-template-columns: minmax(0, 1fr); gap: 2px; padding: 14px 0; }
  .settings-dialog { padding: 23px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; }
  .scan-sheet, .scan-pose, .variant-card, .variant-grid, .scan-screen.is-scanning .scan-light { animation: none !important; transition: none; }
  .variant-card { transform: none; }
  .scan-screen.is-scanning .scan-light { display: none; }
}