/* Shell and components per DESIGN.md. Colors, spacing, and radii come only from tokens. */
@font-face {
  font-family: Archivo; font-style: normal; font-weight: 400 700; font-display: swap;
  src: url(/site/fonts/archivo-latin.woff2) format("woff2");
}
@font-face {
  font-family: "Archivo Mono"; font-style: normal; font-weight: 400 500; font-display: swap;
  src: url(/site/fonts/roboto-mono-latin.woff2) format("woff2");
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 1rem/1.55 Archivo, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-synthesis-weight: none;
  overflow-wrap: anywhere;
}
::selection { background: var(--signal); color: var(--legend-white); }
* { scrollbar-color: var(--field-border) transparent; scrollbar-width: thin; }
input, textarea, select { caret-color: var(--signal); }
/* Links read as text that happens to lead somewhere, not as the page's decoration. */
a { color: inherit; text-decoration-color: var(--field-border); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-color: var(--signal); color: var(--signal-text); }
.rail a, a.button, a.handoff, a.plate-link { text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 3px solid var(--focus); outline-offset: 2px;
}
h1, h2, h3 { text-wrap: balance; line-height: 1.12; margin: var(--s6) 0 var(--s3); letter-spacing: -0.015em; }
.panel h2, .panel h3 { margin-top: 0; }
h1 { font-size: 1.875rem; font-weight: 700; }
h2 { font-size: 1.1875rem; font-weight: 700; }
h3 { font-size: 1rem; font-weight: 700; }
/* The engraved legend: every small label on a plate, a table head, or a field. */
.legend, .cell-section, .field label, th, .facts dt, caption, .command label {
  font-size: .6875rem; font-weight: 600; letter-spacing: .085em; text-transform: uppercase; color: var(--muted);
}
.mono, code, .data { font-family: "Archivo Mono", ui-monospace, Menlo, Consolas, monospace; font-size: .875rem; font-weight: 500; font-variant-numeric: tabular-nums slashed-zero; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: var(--s4); top: var(--s2); background: var(--panel); padding: var(--s2) var(--s3); z-index: 10; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 var(--s4); }

/* Top rail */
.rail { background: var(--guide); color: var(--legend-white); min-height: 52px; border-bottom: 1px solid var(--guide-active); }
.rail .wrap { display: flex; align-items: center; gap: var(--s4); min-height: 56px; flex-wrap: wrap; }
.wordmark { color: var(--legend-white); font-weight: 700; font-size: 1.0625rem; letter-spacing: -0.02em; text-decoration: none; }
.rail nav ul { display: flex; gap: var(--s3); list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.menu-button { display: none; background: transparent; color: var(--legend-white); border: 1px solid var(--legend-white); border-radius: var(--r-field); font: 600 .875rem/1 inherit; padding: var(--s2) var(--s3); min-height: 44px; cursor: pointer; }
/* Below 768 px the sections fold into a menu; without script the list simply stays open. */
@media (max-width: 767px) {
  [data-js] .menu-button { display: inline-block; }
  [data-js] .rail nav ul { display: none; }
  [data-js] .rail nav.open ul { display: flex; flex-direction: column; width: 100%; padding-bottom: var(--s2); }
  [data-js] .rail nav.open { flex-basis: 100%; order: 3; }
}
.rail nav a {
  color: var(--legend-white); font-weight: 500; font-size: .8125rem; letter-spacing: .01em; text-decoration: none;
  padding: var(--s3) var(--s2); display: inline-block; min-height: 24px; border-bottom: 2px solid transparent; opacity: .82;
}
.rail nav a:hover { opacity: 1; }
/* The live section is the only orange in the rail. */
.rail nav a[aria-current="page"] { opacity: 1; border-bottom-color: var(--signal); font-weight: 600; }
.rail a:focus-visible, .rail button:focus-visible { outline-color: var(--legend-white); }
.theme-toggle {
  margin-left: auto; background: transparent; color: var(--legend-white); border: 1px solid var(--guide-hover);
  border-radius: var(--r-field); font: 600 .75rem/1 inherit; letter-spacing: .06em; text-transform: uppercase;
  padding: var(--s2) var(--s3); min-height: 36px; cursor: pointer;
}
.theme-toggle:hover { border-color: var(--legend-white); }

/* Command bar */
.command { background: var(--bg); border-bottom: 1px solid var(--line); }
.command .wrap { padding-top: var(--s3); padding-bottom: var(--s3); position: relative; }
.command label { display: block; margin-bottom: var(--s1); }
.command input {
  width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid var(--field-border); border-radius: var(--r-field);
  background: var(--panel); color: var(--ink);
}
.command-results {
  position: absolute; left: var(--s4); right: var(--s4); z-index: 5; margin: var(--s1) 0 0; padding: var(--s1) 0; list-style: none;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-field); box-shadow: 0 8px 24px var(--shadow);
}
.command-results[hidden] { display: none; }
.command-results li a { display: block; padding: var(--s2) var(--s3); color: var(--ink); text-decoration: none; }
.command-results li[aria-selected="true"] a, .command-results li a:hover { background: var(--panel-hover); }
.command-results .hint { color: var(--muted); }

/* Page */
main { padding-bottom: var(--s7); }
.tool-head { display: flex; align-items: baseline; gap: var(--s3); flex-wrap: wrap; }
.tool-head h1 { margin-bottom: var(--s2); }
.purpose { margin-top: 0; max-width: 72ch; }
.chip {
  display: inline-flex; align-items: center; gap: var(--s1); border-radius: var(--r-field); padding: 3px 8px;
  font-size: .6875rem; font-weight: 600; letter-spacing: .07em; text-transform: uppercase;
  border: 1px solid var(--line); color: var(--muted); background: var(--raise);
}
.glyph { width: 16px; height: 16px; flex: none; }

/* The home page's worked plate: proof before any list of links. On a phone it
   collapses to one compact line, because both lanes still have to start on a
   360 x 640 first screen (site/home-and-navigation). */
.proof { margin: var(--s4) 0 var(--s7); }

/* The plate: the measured value, engraved, with its rating basis stamped along the lower edge. */
.answer { margin: var(--s4) 0 var(--s5); }
.sign {
  background: var(--guide); color: var(--legend-white); border-radius: var(--r-sign); padding: var(--s5) var(--s5) 0;
  position: relative; overflow: hidden;
  /* Depth is two hairlines, the way a raised plate catches light; never a bevel or a glow. */
  border-top: 1px solid var(--guide-hover); border-bottom: 1px solid var(--guide-active);
  box-shadow: 0 1px 2px var(--shadow);
}
.sign .label { font-size: .6875rem; font-weight: 600; letter-spacing: .085em; text-transform: uppercase; color: var(--legend-white); opacity: .72; margin: 0 0 var(--s3); }
.sign .number {
  font-size: 3.25rem; font-weight: 700; line-height: .95; letter-spacing: -0.035em;
  font-variant-numeric: tabular-nums slashed-zero; margin: 0; color: var(--signal);
}
.sign .unit { font-size: .9375rem; font-weight: 500; margin-left: var(--s2); color: var(--legend-white); opacity: .72; letter-spacing: 0; }
.sign .sentence { margin: var(--s4) 0 var(--s5); max-width: 62ch; color: var(--legend-white); opacity: .92; }
/* The stamped band: the basis travels with the number everywhere the number goes. */
.sign .source-tab {
  display: block; margin: 0 calc(-1 * var(--s5)); padding: var(--s3) var(--s5);
  background: var(--guide-active); color: var(--legend-white);
  font-size: .6875rem; font-weight: 500; letter-spacing: .06em; text-transform: uppercase;
  border-top: 1px solid var(--guide-hover); border-radius: 0;
}
@media (min-width: 768px) { .sign .number { font-size: 4.25rem; } }
.sign.updating .number { opacity: .55; }
.stamp { margin: var(--s3) 0 var(--s4); font-size: .8125rem; line-height: 1.5; color: var(--muted); max-width: 88ch; }
.stamp .ok, .stamp .diamond { font-weight: 600; }
.stamp .glyph { vertical-align: -2px; margin-right: var(--s1); }
.stamp .ok { color: var(--ok); }
.stamp .diamond { color: var(--work-zone-text); }
/* Screening and example values are stamped, tight and flat, never a full-bleed hazard bar. */
.strip {
  background: var(--panel); color: var(--ink); padding: var(--s3) var(--s4);
  border: 1px solid var(--line); border-left: 3px solid var(--work-zone); border-radius: var(--r-field);
  font-size: .8125rem; font-weight: 500;
  display: flex; gap: var(--s2); align-items: center; flex-wrap: wrap;
}
.strip .glyph { color: var(--work-zone-text); flex: none; }
.strip a { color: var(--ink); }
.answer-actions { display: flex; gap: var(--s2); flex-wrap: wrap; margin-top: var(--s3); }
.button {
  min-height: 44px; padding: 12px 18px; border-radius: var(--r-field); font: 600 .8125rem/1 inherit; cursor: pointer;
  background: var(--panel); color: var(--ink); border: 1px solid var(--field-border);
  transition: background-color .12s ease-out, border-color .12s ease-out;
}
.button:hover { background: var(--panel-hover); border-color: var(--ink); }
.button.primary { background: var(--signal-field); color: var(--legend-white); border-color: var(--signal-field); }
.button.primary:hover { background: var(--signal); border-color: var(--signal); }
a.button { display: inline-flex; align-items: center; text-decoration: none; }
.button:active { background: var(--panel-active); }
.errors { color: var(--stop); }

/* Inputs */
.inputs { display: grid; gap: var(--s4); grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); margin: var(--s4) 0; }
.field label { display: block; font-size: .875rem; font-weight: 600; margin-bottom: var(--s1); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid var(--field-border); border-radius: var(--r-field);
  background: var(--panel); color: var(--ink); font-family: "Archivo Mono", ui-monospace, Menlo, Consolas, monospace; font-size: .875rem;
}
.field .unit-hint { color: var(--muted); font-size: .875rem; }
.field .error { color: var(--stop); font-size: .875rem; margin: var(--s1) 0 0; }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: var(--stop); }
.field textarea { min-height: 7rem; resize: vertical; }
.field.wide { grid-column: 1 / -1; }
.button.link { min-height: 44px; border: 0; background: none; padding: 0; color: inherit; text-decoration: underline; font: inherit; font-size: .875rem; text-align: left; cursor: pointer; }
.bill-month { margin: var(--s2) 0; }
fieldset[data-conditions] { border: 1px solid var(--line); border-radius: var(--r-field); padding: var(--s3); margin: var(--s3) 0; }
label.check { display: flex; gap: var(--s2); align-items: center; min-height: 44px; }
.bill-month table { margin-top: var(--s2); }
.picker-row { display: grid; gap: var(--s3); grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr)); align-items: end; }

/* Regulatory panels: work, sources, limits */
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-field); padding: var(--s4); margin: var(--s4) 0; }
.panel > h2, .panel > h3 { letter-spacing: -0.01em; }
details.panel > summary { cursor: pointer; font-weight: 700; min-height: 24px; }
.summary-heading { display: inline; font-size: 1rem; margin: 0; }
.panel h3 { font-size: 1rem; margin: var(--s4) 0 var(--s2); }
/* Form controls in a panel (the lookup's ZIP and county forms) stack and never outgrow it, whatever the option text. */
form.panel label { display: block; margin-top: var(--s2); }
form.panel input, form.panel select { display: block; width: 100%; max-width: 100%; min-width: 0; min-height: 44px; border: 1px solid var(--field-border); border-radius: var(--r-field); background: var(--panel); color: var(--ink); padding: 0 var(--s2); }
form.panel .button { margin-top: var(--s3); }
.panel > h2:first-child { margin-top: 0; }
.panel ol, .panel ul { padding-left: var(--s5); }
.handoff {
  display: inline-flex; gap: var(--s2); align-items: center; background: var(--panel); color: var(--ink);
  border: 1px solid var(--field-border); border-radius: var(--r-field); padding: 10px 14px;
  font-weight: 600; font-size: .8125rem; text-decoration: none; min-height: 44px;
  transition: border-color .12s ease-out, color .12s ease-out;
}
.handoff:hover { border-color: var(--signal); color: var(--signal-text); }
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: var(--s2) var(--s3); border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { border-bottom: 1px solid var(--field-border); white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
td { font-variant-numeric: tabular-nums slashed-zero; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
.tool-list { list-style: none; padding: 0; display: grid; gap: var(--s3); }
/* A lane is a dense row of cells on a working screen, not a stack of full-width cards. */
@media (min-width: 720px) { .tool-list { grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); } }
.tool-cell .question { margin: var(--s1) 0 var(--s2); color: var(--muted); font-size: .875rem; }
.tool-cell .unit-hint { margin: 0; font-size: .75rem; color: var(--muted); }
/* "Preview" is a stamped legend on the cell, not a line of body text above the name. */
.tool-cell .work-zone {
  display: inline-block; margin: 0 0 var(--s2); padding: 2px 6px; border-radius: var(--r-field);
  background: var(--raise); color: var(--work-zone-text); border: 1px solid var(--line);
  font-size: .625rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
}
.tool-cell {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-field); padding: var(--s4);
  transition: border-color .12s ease-out;
}
.tool-cell:hover { border-color: var(--field-border); }
.tool-cell a { font-weight: 700; font-size: 1.0625rem; letter-spacing: -0.01em; text-decoration: none; }
.tool-cell a:hover { color: var(--signal-text); }
/* On phones a home lane is two columns of names and what each needs, so both lanes and up to five cells each fit the first screen. */
@media (max-width: 767px) {
  .lane .tool-list { grid-template-columns: 1fr 1fr; gap: var(--s2); }
  .lane .tool-cell { padding: var(--s2); }
  .lane .tool-cell .question, .lane .tool-cell .as-of { display: none; }
  .lane .tool-cell .work-zone { display: inline-block; padding: 0 var(--s1); margin: 0 var(--s1) 0 0; font-size: .75rem; }
  .lane .tool-cell a { font-size: 1rem; }
  .lane .tool-cell .unit-hint { margin: var(--s1) 0 0; font-size: .75rem; }
}

footer { border-top: 1px solid var(--line); margin-top: var(--s8); padding: var(--s5) 0 var(--s6); color: var(--muted); font-size: .8125rem; }
footer ul { list-style: none; padding: 0; margin: 0 0 var(--s3); display: flex; gap: var(--s4); flex-wrap: wrap; }
footer p { margin: var(--s1) 0 0; max-width: 70ch; }
footer .wordmark-foot { color: var(--ink); font-weight: 700; letter-spacing: -0.02em; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }
@media (forced-colors: active) {
  .sign, .strip, .handoff { border: 2px solid CanvasText; }
}
@media print {
  .rail, .command, .theme-toggle, .answer-actions, .report-actions { display: none; }
  /* With a report made, only the report prints: one page from the browser's own "Save as PDF". */
  body:has([data-report-view]:not([hidden])) main [data-workbench] > :not([data-report-view]),
  body:has([data-report-view]:not([hidden])) .drag-overlay, body:has([data-report-view]:not([hidden])) footer { display: none; }
  .report-view { border: 0; padding: 0; font-size: .8rem; }
  a[href^="http"]::after { content: " (" attr(href) ")"; }
}

/* Charts (DESIGN.md Charts): series colors by role, references muted and dashed. */
.chart { margin: var(--s4) 0; }
.chart svg { width: 100%; height: auto; display: block; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-field); }
.chart figcaption { color: var(--muted); font-size: .875rem; margin-top: var(--s2); }
.chart-grid line { stroke: var(--line); stroke-width: 1; }
.chart-axis text { fill: var(--muted); font: 500 11px "Archivo Mono", ui-monospace, Menlo, Consolas, monospace; }
.series { fill: none; stroke-width: 2; vector-effect: non-scaling-stroke; }
.series-measured { stroke: var(--series-measured); }
.series-whatif { stroke: var(--series-whatif); }
.series-compare { stroke: var(--service); stroke-dasharray: 6 4; }
.heatmap svg { height: auto; }
.heat-0 { fill: var(--heat-0); } .heat-1 { fill: var(--heat-1); } .heat-2 { fill: var(--heat-2); }
.heat-3 { fill: var(--heat-3); } .heat-4 { fill: var(--heat-4); } .heat-5 { fill: var(--heat-5); }
.chart-highlight circle { fill: var(--series-measured); stroke: var(--panel); stroke-width: 2; }
.chart-highlight text { fill: var(--ink); font: 600 12px Archivo, system-ui, sans-serif; }
caption { text-align: left; color: var(--muted); font-size: .875rem; padding: var(--s2) 0; }

/* File workbench */
.dropzone { border: 2px dashed var(--field-border); border-radius: var(--r-field); padding: var(--s4); margin: var(--s4) 0; background: var(--panel); }
.dropzone p { margin: var(--s1) 0; }
.drag-overlay { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; background: color-mix(in srgb, var(--guide) 92%, transparent); color: var(--legend-white); font-size: 1.75rem; font-weight: 800; }
.drag-overlay[hidden] { display: none; }
.progress { display: flex; gap: var(--s3); align-items: center; flex-wrap: wrap; }
.progress[hidden], .errors[hidden] { display: none; }
.progress progress { flex: 1 1 200px; accent-color: var(--guide); }
.facts { display: flex; gap: var(--s5); flex-wrap: wrap; margin: var(--s3) 0; }
.facts dt { color: var(--muted); font-family: Archivo, system-ui, sans-serif; font-weight: 600; }
.facts dd { margin: 0; font-size: 1.125rem; }
.receipt div { display: grid; grid-template-columns: minmax(8rem, 12rem) 1fr; gap: var(--s3); padding: var(--s2) 0; border-bottom: 1px solid var(--line); }
@media (max-width: 480px) { .receipt div { grid-template-columns: 1fr; gap: var(--s1); } }
.receipt dt { color: var(--muted); }
.receipt dd { margin: 0; }
/* Grid cells may shrink below their content, so a long option or file name wraps instead of widening the page. */
.receipt div > * { min-width: 0; }
.receipt-choice { display: flex; flex-direction: column; gap: var(--s1); }
.receipt-choice select { min-height: 44px; width: 100%; max-width: 100%; border: 1px solid var(--field-border); border-radius: var(--r-field); background: var(--panel); color: var(--ink); padding: 0 var(--s2); }
.receipt-privacy { color: var(--ok); font-weight: 600; display: flex; gap: var(--s2); align-items: center; }

/* Report dialog */
dialog.report { max-width: min(40rem, calc(100vw - 2 * var(--s4))); border: 1px solid var(--line); border-radius: var(--r-field); background: var(--panel); color: var(--ink); box-shadow: 0 8px 24px var(--shadow); padding: var(--s5); }
dialog.report::backdrop { background: color-mix(in srgb, var(--ink) 40%, transparent); }
dialog.report textarea { width: 100%; border: 1px solid var(--field-border); border-radius: var(--r-field); background: var(--panel); color: var(--ink); padding: var(--s2); font: inherit; }
.report-preview { background: var(--raise); padding: var(--s3); border-radius: var(--r-field); overflow-x: auto; white-space: pre-wrap; max-height: 16rem; }
.field-block { display: block; font-weight: 600; margin-bottom: var(--s1); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Source stamp and warning chip */
.source-stamp { color: var(--muted); }
.warning-chip { display: inline-flex; align-items: center; gap: var(--s1); background: var(--warning); color: var(--legend-black); border-radius: var(--r-pill); padding: 4px 10px; font-weight: 600; font-family: Archivo, system-ui, sans-serif; }
.warning-chip[hidden] { display: none; }
blockquote { border-left: 1px solid var(--field-border); margin: var(--s3) 0; padding: var(--s2) var(--s4); }

[data-health-row].stalled { color: var(--warning-text); font-weight: 700; }

/* Grid pulse: hidden below 768 px (DESIGN.md Layout) and absent until a snapshot exists. */
.pulse { display: none; margin: 0 0 0 auto; align-items: center; gap: var(--s2); color: var(--legend-white); font-size: .75rem; }
@media (min-width: 768px) { .pulse { display: flex; } .pulse + .theme-toggle { margin-left: var(--s3); } }

.cell-section { color: var(--muted); font-size: .875rem; font-weight: 600; margin: 0 0 var(--s1); }

/* Home: the tagline as a modest heading, and lanes close enough that both start on a phone's first screen. */
.home-title { font-size: 1.5rem; line-height: 1.2; letter-spacing: -0.02em; margin: var(--s5) 0 var(--s4); }
.lane h2 { margin: var(--s6) 0 var(--s3); }
.home-title { max-width: 30ch; }

/* The phone first screen (site/home-and-navigation): the proof keeps one real
   number, and both lanes still start above the fold. Last in the file so these
   win over the base rules they narrow. */
@media (max-width: 719px) {
  .proof { margin: var(--s2) 0 var(--s4); }
  .proof > .legend { margin-bottom: var(--s1); }
  /* One line that still carries a real measured number, so the lanes keep the first screen. */
  .proof .sign { padding: var(--s2) var(--s3); border-radius: var(--r-field); display: flex; align-items: baseline; gap: var(--s2); flex-wrap: wrap; }
  .proof .sign .label { margin: 0; }
  .proof .sign .number { font-size: 1.5rem; }
  .proof .sign .unit { margin-left: var(--s1); }
  .proof .sign .sentence, .proof .sign .source-tab, .proof .figures { display: none; }
  .proof-actions { margin-top: var(--s2); }
  .proof-actions .unit-hint { display: none; }
  .home-title { font-size: 1.0625rem; line-height: 1.25; margin: var(--s3) 0 var(--s2); }
  .lane h2 { margin: var(--s3) 0 var(--s2); }
  .lane .tool-cell { padding: var(--s2); }
}
  .proof > .legend { display: none; }
  .command label { position: absolute; left: -9999px; }
}