/* Plandot, "Studio light": soft grey canvas, white cards, one indigo accent.
   The left panel is a fixed size; the drawing gets all the remaining room and zooms inside it. */

@font-face { font-family: "Inter"; src: url("../vendor/fonts/inter-regular.woff") format("woff"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../vendor/fonts/inter-semibold.woff") format("woff"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../vendor/fonts/inter-bold.woff") format("woff"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Inter"; src: url("../vendor/fonts/inter-extrabold.woff") format("woff"); font-weight: 800; font-display: swap; }

:root {
  --canvas: #eef1f6;
  --card: #ffffff;
  --soft: #f4f6fa;
  --ink: #172033;
  --ink-2: #566379;
  --line: #d5dbe6;
  --line-soft: #e6eaf1;
  --accent: #3355ff;
  --accent-dark: #2440d4;
  --accent-wash: #e8edff;
  --gold: #ffd24a;
  --ok: #17785a;
  --warn: #8a5a00;
  --warn-wash: #fff6e0;
  --err: #b42318;
  --radius: 12px;
  --radius-s: 9px;
  --shadow: 0 1px 3px rgba(23, 32, 51, 0.08);
  --panel: 380px; /* the left panel never changes width */
  --head: 72px;
  --nav: 40px; /* the menu bar above the page header */
  --body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { background: var(--canvas); scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--canvas); font: 400 14px/1.5 var(--body); font-feature-settings: "tnum"; -webkit-font-smoothing: antialiased; }
[hidden] { display: none !important; }
h1, h2 { margin: 0; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -48px; z-index: 20; background: var(--ink); color: #fff; padding: 10px 14px; border-radius: var(--radius-s); font-weight: 600; text-decoration: none; }
.skip:focus { top: 10px; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Masthead */
.topnav { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 4px 6px; min-height: var(--nav); padding: 0 22px; }
.topnav a { color: var(--ink-2); text-decoration: none; font-weight: 600; font-size: 13px; padding: 6px 12px; border-radius: 999px; }
.topnav a:hover { background: var(--card); color: var(--accent-dark); }
.topnav a[aria-current="page"] { color: var(--accent-dark); background: var(--accent-wash); }
.topnav .nav-app { margin-right: auto; color: var(--accent-dark); }
.notice { background: var(--accent-wash); color: #1f3399; border-radius: 10px; padding: 9px 12px; font-size: 13px; font-weight: 600; line-height: 1.4; }
.masthead { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: var(--head); padding: 10px 28px; } /* a fixed height, so nothing below it ever moves */
.brand { display: flex; align-items: center; gap: 14px; min-width: 0; flex: 1 1 0; }
.brand > div { min-width: 0; }
.mark { width: 38px; height: 38px; flex: none; color: var(--accent); }
.brand h1 { font-weight: 800; font-size: 21px; letter-spacing: -0.02em; line-height: 1.1; }
.brand p { color: var(--ink-2); font-size: 13px; margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.masthead-right { display: flex; align-items: center; gap: 10px; min-width: 0; flex: 0 1 auto; }
.titleblock { display: flex; align-items: center; gap: 10px; margin: 0; min-width: 0; }
.titleblock > div { display: flex; align-items: baseline; gap: 8px; height: 36px; padding: 0 14px; background: var(--card); border-radius: 999px; box-shadow: var(--shadow); align-items: center; min-width: 0; }
.titleblock dt { color: var(--ink-2); }
.titleblock dd { margin: 0; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.titleblock .tb-name { max-width: 300px; flex: 0 1 auto; }
.titleblock > div { flex: 0 0 auto; }
.titleblock .tb-name { flex: 0 1 auto; }

/* Layout */
.layout { padding: 4px 28px 28px; }
.workspace { display: grid; grid-template-columns: var(--panel) minmax(0, 1fr); gap: 20px; align-items: stretch; height: max(560px, calc(100vh - var(--nav) - var(--head) - 32px)); height: max(560px, calc(100dvh - var(--nav) - var(--head) - 32px)); }
.controls { display: flex; flex-direction: column; gap: 14px; overflow-y: auto; overflow-x: hidden; padding: 2px 6px 2px 2px; scrollbar-width: thin; scrollbar-color: #c3cad8 transparent; }
.step { flex: none; background: var(--card); border-radius: 16px; box-shadow: var(--shadow); padding: 16px 18px 18px; }
.step h2 { font-size: 16px; display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.step-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.step-head h2 { margin-bottom: 12px; }
.step-tools { display: flex; gap: 2px; margin-bottom: 12px; }
.num { display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 12px; font-weight: 700; line-height: 1; flex: none; }

.field { display: flex; flex-direction: column; gap: 4px; margin-top: 12px; }
.field:first-of-type { margin-top: 0; }
label, .label { font-weight: 600; font-size: 12.5px; color: var(--ink-2); }
.hint { color: var(--ink-2); font-size: 12.5px; line-height: 1.45; }
.hint.lead { margin-bottom: 12px; }
.hint + .row, .row + .hint { margin-top: 8px; }
input[type="text"], input[type="number"], select { font: inherit; color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-s); padding: 8px 10px; width: 100%; min-width: 0; }
select { appearance: none; padding-right: 28px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23566379' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; cursor: pointer; }
input[type="text"]:hover, input[type="number"]:hover, select:hover { border-color: #b4bdcd; }
input[type="text"]:focus, input[type="number"]:focus, select:focus { border-color: var(--accent); outline: 2px solid var(--accent-wash); outline-offset: 0; }
input[type="file"] { font: inherit; font-size: 13px; max-width: 100%; color: var(--ink-2); }
input[type="file"]::file-selector-button { font: 600 13px var(--body); color: var(--ink); background: var(--soft); border: 1px solid var(--line); border-radius: var(--radius-s); padding: 7px 12px; margin-right: 10px; cursor: pointer; }
input[type="file"]::file-selector-button:hover { background: var(--accent-wash); border-color: var(--accent); }
input[type="number"] { width: 5.5em; }
input[type="checkbox"], input[type="range"] { accent-color: var(--accent); }
input::placeholder { color: #6b7788; }
.inline { display: flex; align-items: center; gap: 8px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.stack { display: flex; flex-direction: column; gap: 10px; align-items: stretch; }
.stack .btn { text-align: center; }

.btn { font: 600 13px/1 var(--body); color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-s); padding: 11px 14px; cursor: pointer; transition: background 0.12s, border-color 0.12s; }
.btn:hover:not(:disabled) { background: var(--soft); border-color: #b4bdcd; }
.btn:disabled { color: #8590a3; background: var(--soft); border-color: transparent; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; padding: 13px 16px; font-size: 14px; font-weight: 700; }
.btn.primary:hover:not(:disabled) { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn.primary:disabled { background: #dfe4ef; color: #7d889b; border-color: transparent; }
.btn.dark { background: var(--ink); border-color: var(--ink); color: #fff; border-radius: 999px; height: 36px; padding: 0 18px; font-weight: 700; font-size: 14px; }
.btn.dark:hover:not(:disabled) { background: #2a3550; border-color: #2a3550; }
.btn.quiet { padding: 8px 12px; }
.btn.quiet:hover:not(:disabled) { border-color: var(--accent); color: var(--accent-dark); background: var(--accent-wash); }
.btn.link { border: 0; background: transparent; color: var(--accent-dark); padding: 6px 8px; border-radius: 7px; }
.btn.link:hover:not(:disabled) { background: var(--accent-wash); border: 0; }
.btn.link:disabled { color: #8590a3; background: transparent; }

/* Template chips */
.chips { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 10px; }
.chip { font-size: 12px; line-height: 1; padding: 5px 9px; border-radius: 999px; background: var(--soft); color: var(--ink-2); }
.chip.auto { background: var(--ink); color: #fff; }
.chip.custom { background: var(--accent-wash); color: var(--accent-dark); font-weight: 600; }
.chips-note { flex-basis: 100%; font-size: 12px; color: var(--ink-2); }
.chips-note.warn { color: var(--warn); }

/* Alerts */
.alert { display: flex; flex-direction: column; gap: 3px; margin-top: 10px; padding: 10px 12px; background: var(--warn-wash); border-left: 4px solid #e0a100; border-radius: 8px; color: #5d3d00; font-size: 12.5px; line-height: 1.45; }
.alert strong { font-weight: 700; }

/* Rules */
.rule { position: relative; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); padding: 10px 12px 12px 14px; margin-bottom: 10px; }
.rule::before { content: ""; position: absolute; left: 0; top: 14px; width: 4px; height: 22px; background: var(--pin, var(--accent)); border-radius: 0 4px 4px 0; }
.rule-head { display: flex; align-items: center; gap: 4px; }
.rule-head input { font-weight: 700; font-size: 15px; border-color: transparent; padding-left: 4px; background: transparent; }
.rule-head input:hover, .rule-head input:focus { border-color: var(--line); background: var(--card); }
.icon-btn { flex: none; font: 600 12px/1 var(--body); color: var(--ink-2); background: transparent; border: 1px solid transparent; border-radius: 7px; padding: 7px 8px; cursor: pointer; }
.icon-btn:hover { background: var(--soft); color: var(--ink); }
.rule .field { margin-top: 10px; }
.rule .check { margin-top: 6px; font-weight: 400; color: var(--ink); }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.pair .field { margin-top: 0; min-width: 0; }
.check { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; cursor: pointer; }
.rule-status { margin-top: 10px; font-size: 12.5px; color: var(--ink-2); }
.rule-status.err { color: var(--err); font-weight: 600; }
.rule-status .found { font-weight: 700; color: var(--ink); }
.rule-status .warn { color: var(--warn); }
td.muted { color: var(--ink-2); }

/* Task title helper */
.insert { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 2px; }
.insert .lbl { font-size: 12px; color: var(--ink-2); font-weight: 600; margin-right: 2px; }
.token { font: 700 12px/1 var(--body); padding: 6px 10px; border: 0; border-radius: 999px; background: var(--accent-wash); color: var(--accent-dark); cursor: pointer; }
.token:hover { background: var(--accent); color: #fff; }
.becomes { margin-top: 2px; padding: 8px 10px; background: var(--soft); border-radius: var(--radius-s); font-size: 12.5px; color: var(--ink-2); overflow-wrap: anywhere; }
.becomes b { color: var(--ink); font-weight: 700; }
.becomes .note { display: block; margin-top: 3px; color: var(--warn); }

.more { margin-top: 10px; border-top: 1px solid var(--line-soft); padding-top: 8px; }
.more summary, .settings summary { cursor: pointer; font-weight: 600; font-size: 13px; padding: 2px 0; }
.more-grid { display: grid; grid-template-columns: 1fr; gap: 8px; margin-top: 8px; }
.more-grid label { font-weight: 400; display: grid; gap: 3px; font-size: 12.5px; color: var(--ink-2); }
.more-grid .tag { color: var(--accent-dark); font-weight: 600; }
.settings { margin-top: 14px; border-top: 1px solid var(--line-soft); padding-top: 12px; }
.settings.flat { margin-top: 0; border-top: 0; padding-top: 0; }
.settings > .field, .settings > .hint, .settings > .btn { margin-top: 12px; }
.status { margin-top: 12px; font-size: 13px; min-height: 1.4em; }
.status.ok { color: var(--ok); }
.status.err { color: var(--err); font-weight: 600; }
.export-summary { font-size: 13px; color: var(--ink); font-weight: 600; }
.export-summary:empty { display: none; }
.preview-wrap { margin-top: 10px; overflow: auto; max-height: 240px; border: 1px solid var(--line-soft); border-radius: var(--radius-s); }
.preview-wrap table { font-size: 12px; }
.preview-wrap th { padding: 6px 8px; }
.preview-wrap td { padding: 5px 8px; white-space: nowrap; max-width: 200px; overflow: hidden; text-overflow: ellipsis; }
.preview-wrap .more-rows { padding: 6px 8px; color: var(--ink-2); font-size: 12px; }

/* Drawing pane: a card with a toolbar, a viewport that scrolls and zooms, and a floating zoom control */
.sheetpane { position: relative; min-width: 0; min-height: 0; display: flex; flex-direction: column; background: var(--card); border-radius: 16px; box-shadow: var(--shadow); overflow: hidden; }
.toolbar { flex: none; display: flex; align-items: center; justify-content: space-between; gap: 14px; min-height: 52px; padding: 8px 18px; border-bottom: 1px solid var(--line-soft); }
.toolbar .tip { color: var(--ink-2); font-size: 13px; margin-left: auto; }
.readout { font-weight: 700; font-variant-numeric: tabular-nums; min-width: 15ch; text-align: right; }

.viewport { flex: 1; min-height: 0; overflow: auto; display: flex; background: #fafbfd; scrollbar-width: thin; scrollbar-color: #b4bdcd transparent; overscroll-behavior: contain; }
.viewport:focus-visible { outline-offset: -3px; }
.viewport.fitted { overflow: hidden; }
.sheet { --rw: 24px; --stage-w: 800px; --stage-h: 520px; flex: none; margin: 0 auto auto; display: grid; grid-template-columns: var(--rw) var(--stage-w); grid-template-rows: var(--rw) var(--stage-h); background: var(--card); box-shadow: 0 0 0 1px var(--line); }
.corner { position: sticky; left: 0; top: 0; z-index: 4; background: var(--soft); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.ruler { position: sticky; z-index: 3; overflow: hidden; background: var(--soft); font: 600 10.5px/1 var(--body); color: var(--ink-2); }
.ruler-x { top: 0; border-bottom: 1px solid var(--line); }
.ruler-y { left: 0; border-right: 1px solid var(--line); }
.ruler .tick { position: absolute; }
.ruler-x .tick { top: 0; height: 100%; border-left: 1px solid #aab3c4; padding: 3px 0 0 3px; white-space: nowrap; }
.ruler-y .tick { left: 0; width: 100%; border-top: 1px solid #aab3c4; padding: 2px 0 0 2px; }
.ruler .minor { position: absolute; background: #c9d0dd; }
.ruler-x .minor { top: 62%; height: 38%; width: 1px; }
.ruler-y .minor { left: 62%; width: 38%; height: 1px; }
.marker { position: absolute; background: var(--accent); display: none; }
.ruler-x .marker { top: 0; bottom: 0; width: 2px; margin-left: -1px; }
.ruler-y .marker { left: 0; right: 0; height: 2px; margin-top: -1px; }
.stage { position: relative; overflow: hidden; line-height: 0; cursor: crosshair; touch-action: none; background: #fff; }
.stage.zoomed { cursor: grab; }
.stage.panning { cursor: grabbing; }
.stage.drawing { cursor: cell; }
.stage canvas { position: absolute; display: block; }
.stage svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: hidden; }

.zoombar { position: absolute; right: 18px; bottom: 18px; z-index: 6; display: flex; align-items: stretch; background: var(--ink); color: #fff; border-radius: 12px; height: 40px; box-shadow: 0 6px 18px rgba(23, 32, 51, 0.25); overflow: hidden; }
.zoombar button { border: 0; background: transparent; color: #fff; font: 600 20px/1 var(--body); width: 40px; cursor: pointer; }
.zoombar button.fit { width: auto; padding: 0 14px; font-size: 13px; font-weight: 700; border-left: 1px solid rgba(255, 255, 255, 0.2); }
.zoombar button:hover:not(:disabled) { background: rgba(255, 255, 255, 0.14); }
.zoombar button:disabled { color: #7d889b; cursor: default; }
.zoombar button:focus-visible { outline-color: var(--gold); outline-offset: -3px; }
.zoombar output { width: 62px; display: grid; place-items: center; font-weight: 700; font-size: 13px; font-variant-numeric: tabular-nums; }

.gridline { stroke: var(--accent); stroke-width: 1; stroke-dasharray: 6 5; opacity: 0.5; vector-effect: non-scaling-stroke; }
.cross { stroke: var(--accent); stroke-width: 1; vector-effect: non-scaling-stroke; opacity: 0.8; pointer-events: none; }
.area-dim { fill: rgba(23, 32, 51, 0.32); fill-rule: evenodd; pointer-events: none; }
.area-edge { fill: none; stroke: var(--accent); stroke-width: 2; vector-effect: non-scaling-stroke; stroke-dasharray: 8 5; pointer-events: none; }
.tether { stroke: var(--ink); stroke-width: 1.3; stroke-dasharray: 4 3; opacity: 0.6; vector-effect: non-scaling-stroke; pointer-events: none; }
.pin { cursor: pointer; }
.pin circle.halo { fill: #fff; opacity: 0.95; }
.pin text { fill: #fff; font: 700 12px var(--body); text-anchor: middle; dominant-baseline: central; pointer-events: none; }
.pin.off circle.dot { fill: #8a96a8 !important; }
.pin.off text { opacity: 0.8; }
.pin.hot circle.halo { fill: var(--ink); }
.pin:focus-visible { outline: none; }
.pin:focus-visible circle.halo { fill: var(--accent); }
.pin.enter { animation: stamp 260ms cubic-bezier(.2, .8, .3, 1) both; animation-delay: calc(var(--i, 0) * 14ms); transform-box: fill-box; transform-origin: center; }
@keyframes stamp { from { opacity: 0; transform: scale(1.7); } to { opacity: 1; transform: scale(1); } }
@media (prefers-reduced-motion: reduce) { .pin.enter { animation: none; } }

.dropzone { flex: 1; display: grid; place-content: center; justify-items: center; gap: 8px; text-align: center; color: var(--ink-2); margin: 16px; border: 2px dashed #b4bdcd; border-radius: 14px; background: #fafbfd; padding: 24px; }
.dropzone .dz-title { font-weight: 800; font-size: 24px; letter-spacing: -0.02em; line-height: 1.2; color: var(--ink); }
.dropzone .btn { margin-top: 8px; }
body.dragging .dropzone, body.dragging .viewport { outline: 3px solid var(--accent); outline-offset: -3px; }

/* Pin table */
.pinlist { margin-top: 20px; background: var(--card); border-radius: 16px; box-shadow: var(--shadow); overflow: hidden; }
.pinlist-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 18px; border-bottom: 1px solid var(--line-soft); }
.pinlist-head h2 { font-size: 16px; }
.tablewrap { overflow: auto; max-height: 460px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { position: sticky; top: 0; background: var(--soft); text-align: left; font-weight: 600; font-size: 12.5px; color: var(--ink-2); padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 4px 10px; border-bottom: 1px solid var(--line-soft); vertical-align: middle; }
tr.off td { color: #6b7788; }
tr.off input[type="text"] { text-decoration: line-through; }
tr.hot td { background: var(--soft); }
.num-col { text-align: right; }
td.num-col { font-variant-numeric: tabular-nums; }
td.rulecell { white-space: nowrap; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; background: var(--pin); }
td input[type="text"] { border-color: transparent; background: transparent; padding: 5px 6px; min-width: 240px; }
td input[type="text"]:hover, td input[type="text"]:focus { border-color: var(--line); background: var(--card); }
.empty { padding: 22px 14px; color: var(--ink-2); }

/* Narrow screens: one column, the drawing first */
/* ---- (i) pop-ups ---- */
.lab { display: flex; align-items: center; gap: 6px; min-height: 22px; }
.info-slot { display: inline-flex; align-items: center; }
.info-btn { width: 18px; height: 18px; padding: 0; border-radius: 50%; border: 1.5px solid #9aa6bd; background: transparent; color: #5a6882; font: italic 700 11px/1 Georgia, "Times New Roman", serif; cursor: pointer; display: inline-grid; place-items: center; }
.info-btn:hover, .info-btn[aria-expanded="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.info-pop { position: fixed; z-index: 60; background: var(--ink); color: #fff; font: 400 13px/1.45 var(--body); padding: 10px 12px; border-radius: 10px; box-shadow: 0 8px 24px rgba(23, 32, 51, 0.28); }
.info-pop::before { content: ""; position: absolute; top: -5px; left: calc(var(--arrow, 20px) - 5px); width: 10px; height: 10px; background: var(--ink); transform: rotate(45deg); border-radius: 2px; }
.head-info { margin: -12px 0 0 auto; }
.tool-left { display: inline-flex; align-items: center; gap: 6px; }
.rule .lab .check { margin-top: 0; }

/* ---- language menu ---- */
.langmenu { position: relative; }
.lang-btn { display: inline-flex; align-items: center; gap: 8px; height: 36px; padding: 0 12px; border: 0; border-radius: 999px; background: var(--card); box-shadow: var(--shadow); font: 600 14px/1 var(--body); color: var(--ink); cursor: pointer; }
.lang-btn:hover { background: var(--soft); }
.lang-btn .chev { color: var(--ink-2); }
.flag { display: block; flex: none; width: 24px; height: 16px; border-radius: 3px; box-shadow: 0 0 0 1px rgba(23, 32, 51, 0.18); }
.lang-list { position: fixed; z-index: 50; margin: 0; padding: 6px; list-style: none; width: 210px; max-height: min(70vh, 520px); overflow-y: auto; background: var(--card); border-radius: 14px; box-shadow: 0 10px 32px rgba(23, 32, 51, 0.2), 0 0 0 1px var(--line-soft); outline: none; }
.lang-list li { display: flex; align-items: center; gap: 12px; padding: 8px 10px; border-radius: 9px; cursor: pointer; font-weight: 600; }
.lang-list li.active { background: var(--soft); }
.lang-list li[aria-selected="true"] { background: var(--accent-wash); color: var(--accent-dark); }
.lang-list:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---- footer ---- */
.sitefoot { max-width: 920px; margin: 8px auto 0; padding: 20px 28px 36px; color: var(--ink-2); font-size: 12.5px; line-height: 1.5; text-align: center; }
.sitefoot p { margin-top: 4px; }
.sitefoot .copy { margin-top: 10px; }
.foot-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 18px; margin-bottom: 12px; font-size: 13px; font-weight: 600; }
.sitefoot a, .linklike { color: var(--accent-dark); text-decoration: none; font: inherit; font-weight: 600; }
.sitefoot a:hover, .linklike:hover { text-decoration: underline; }
.linklike { background: none; border: 0; padding: 0; cursor: pointer; }
.whatsnew { border: 0; border-radius: 16px; padding: 22px 24px; width: min(460px, calc(100vw - 32px)); max-height: 80vh; box-shadow: 0 20px 60px rgba(23, 32, 51, 0.35); color: var(--ink); font: 400 14px/1.5 var(--body); }
.whatsnew::backdrop { background: rgba(23, 32, 51, 0.45); }
.whatsnew h2 { font-size: 18px; margin-bottom: 8px; }
.whatsnew h3 { font-size: 14px; margin: 14px 0 4px; }
.whatsnew ul { margin: 0; padding-left: 20px; }
.whatsnew li { margin: 3px 0; }
.whatsnew .hint { margin: 14px 0 12px; }

/* ---- progress over the drawing, error details ---- */
.busybar { position: fixed; z-index: 40; left: 50%; bottom: 22px; transform: translateX(-50%); display: flex; align-items: center; gap: 12px; padding: 10px 16px; border-radius: 999px; background: var(--ink); color: #fff; font-weight: 600; font-size: 13px; box-shadow: 0 8px 24px rgba(23, 32, 51, 0.3); max-width: calc(100vw - 24px); }
.busy-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.busy-track { position: relative; flex: none; width: 120px; height: 6px; border-radius: 999px; background: rgba(255, 255, 255, 0.25); overflow: hidden; }
.busy-fill { position: absolute; inset: 0 auto 0 0; width: 0; border-radius: inherit; background: var(--gold); transition: width 0.15s; }
.busybar.indeterminate .busy-fill { width: 35%; animation: busy 1.1s ease-in-out infinite alternate; }
@keyframes busy { from { left: 0; } to { left: 65%; } }
@media (prefers-reduced-motion: reduce) { .busybar.indeterminate .busy-fill { animation: none; width: 100%; } .busy-fill { transition: none; } }
.copy-details { display: inline; padding: 2px 8px; font-size: 12.5px; vertical-align: baseline; }
.details-box { display: block; width: 100%; height: 130px; margin-top: 8px; font: 12px/1.4 ui-monospace, Menlo, Consolas, monospace; border: 1px solid var(--line); border-radius: 8px; padding: 8px; }
.dz-help { margin-top: 12px; font-size: 13px; }
.dz-help a { color: var(--accent-dark); font-weight: 600; }

@media (max-width: 1000px) {
  .brand p { white-space: normal; overflow: visible; text-overflow: clip; }
  .topnav { padding: 0 10px; justify-content: flex-start; }
  .masthead { flex-direction: column; align-items: stretch; gap: 12px; padding: 14px 16px; height: auto; }
  .masthead-right { flex-wrap: wrap; }
  .titleblock { flex: 1 1 100%; flex-wrap: wrap; }
  .titleblock .tb-name { flex: 1; max-width: none; }
  .layout { padding: 4px 16px 20px; }
  .workspace { grid-template-columns: minmax(0, 1fr); height: auto; }
  .controls { overflow: visible; padding: 0; margin: 0; }
  .sheetpane { order: -1; height: auto; }
  .viewport { flex: none; height: clamp(280px, calc(100vw - 32px), 62vh); }
  .dropzone { min-height: 240px; }
  .toolbar .tip { display: none; }
}

/* ---- symbol rules ---- */
.sym-preview { width: 100%; max-width: 280px; height: 130px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-s); cursor: crosshair; }
.sym-box { fill: none; stroke: #b4bdcd; stroke-width: 1; stroke-dasharray: 4 3; vector-effect: non-scaling-stroke; }
.sym-line { fill: none; stroke: var(--ink); stroke-width: 1.4; vector-effect: non-scaling-stroke; stroke-linejoin: round; stroke-linecap: round; }
.sym-pin { fill: var(--pin, var(--accent)); stroke: #fff; stroke-width: 1.5; vector-effect: non-scaling-stroke; pointer-events: none; }
.slider { display: flex; align-items: center; gap: 10px; }
.slider input { flex: 1; min-width: 0; }
.slider .level { min-width: 64px; font-size: 13px; font-weight: 600; color: var(--ink); }
.symbol-box { stroke: var(--pin, var(--accent)); }

/* ---- column matching ---- */
.map-row { display: grid; grid-template-columns: 1fr 1.4fr; gap: 8px; align-items: center; margin: 6px 0; font-weight: 600; font-size: 13px; }
.mapping { margin-top: 10px; }