/* Drainage Study — brand guidelines v1.0 (September 2026).
   True Blue and white carry the brand. Helvetica is the voice; IBM Plex
   Mono is the evidence — every measured value, unit, coordinate and field
   label is set in mono. No gradients, no second accent. */

:root {
  --blue:  #3D63F5;   /* the mark, primary actions, results */
  --blue-soft: #ECF0FE;   /* pale blue: delineated area fill, active states */
  --blue-edge: #C3D0FB;
  --ink:   #101B2E;   /* headings and body copy */
  --paper: #F6F8FB;   /* page ground behind white cards */
  --slate: #48597A;   /* body copy and secondary text */
  --rule:  #DCE2EB;   /* hairlines */
  --label: #5F6E8A;   /* mono labels */
  --white: #FFFFFF;

  /* status, kept separate from the brand accent */
  --good: #0E7C61;  --good-bg: #EFF8F5;
  --bad:  #C2313B;  --bad-bg:  #FDF1F2;  --bad-edge: #F0D2D5;
  --note: #7A5C12;  --note-bg: #FDF8EC;  --note-edge: #EADFC4;

  --voice: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; margin: 0; }
body {
  font: 15px/1.5 var(--voice);
  color: var(--ink); background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

/* App shell (2026-10-18): a 48px top bar, then the tool fills the rest. */
body { display: flex; flex-direction: column; }
#app { display: flex; flex: 1; min-height: 0; }
.ds-top {
  flex: none; height: 48px; display: flex; align-items: center; gap: 18px;
  padding: 0 14px 0 16px; background: var(--white);
  border-bottom: 1px solid var(--rule);
}
.ds-top-brand { display: flex; align-items: center; gap: 9px;
  text-decoration: none; color: var(--ink); }
.ds-top-brand svg { width: 24px; height: 22px; flex: none; }
.ds-top-brand .wordmark { font-size: 18px; font-weight: 500;
  letter-spacing: -.02em; }
.ds-top-nav { display: flex; gap: 4px; margin-left: 6px; }
.ds-top-nav a { font: 500 13px/1 var(--voice); color: var(--slate);
  text-decoration: none; padding: 7px 10px; border-radius: 4px; }
.ds-top-nav a:hover { color: var(--ink); background: var(--paper); }
.ds-top-nav a[aria-current="page"] { color: var(--ink); background: var(--blue-soft); }
.ds-top-study { display: flex; align-items: center; gap: 8px; min-width: 0;
  margin-left: 8px; }
.ds-top-study input {
  font: 500 14px/1 var(--voice); color: var(--ink); background: transparent;
  border: 1px solid transparent; border-radius: 4px; padding: 7px 9px;
  width: 300px; max-width: 32vw;
}
.ds-top-study input:hover { border-color: var(--rule); }
.ds-top-study input:focus { border-color: var(--blue); background: var(--white); outline: none; }
.ds-save-state { font: 400 11px/1 var(--mono); color: var(--label);
  letter-spacing: .04em; text-transform: uppercase; white-space: nowrap; }
.ds-top-right { margin-left: auto; display: flex; align-items: center; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- the studies page (/app) ---------- */
.page-studies { background: var(--paper); min-height: 100vh; }
/* #app is the flex row of the tool; this page's main is a column. */
#app.studies-main { display: block; flex: none; max-width: 920px; width: 100%;
  margin: 0 auto; padding: 28px 20px 60px; }
.studies-head { display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px; margin-bottom: 18px; }
.studies-head h1 { margin: 0 0 4px; font-size: 24px; letter-spacing: -.02em; }
.studies-head .hint { margin: 0; }
.studies-new { text-decoration: none; display: inline-block; }
.studies-empty { display: grid; gap: 10px; justify-items: start; }
.studies-empty .tool { text-decoration: none; }
.banner-ok { color: var(--good); background: var(--good-bg); border-color: #CBE8DD;
  margin-bottom: 12px; }
.studies-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.study-row { display: grid; grid-template-columns: 1fr auto auto; align-items: center;
  gap: 14px; background: var(--white); border: 1px solid var(--rule);
  border-radius: 6px; padding: 12px 14px; transition: border-color .12s, box-shadow .12s; }
.study-row:hover { border-color: var(--blue-edge); box-shadow: 0 2px 10px rgba(16,27,46,.06); }
.study-open { display: grid; gap: 5px; min-width: 0; text-decoration: none; color: inherit; }
.study-name { font: 500 15px/1.3 var(--voice); color: var(--ink);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.study-facts { display: flex; flex-wrap: wrap; gap: 6px 12px;
  font: 400 11.5px/1.4 var(--mono); color: var(--label); }
.study-facts .tag { color: var(--blue); background: var(--blue-soft);
  border-radius: 3px; padding: 1px 6px; }
.study-peak { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
  font: 400 12px/1.4 var(--mono); color: var(--slate); margin-top: 2px; }
.study-peak b { font: 500 15px/1 var(--mono); color: var(--ink); }
.study-peak + .pill, .study-open .pill { justify-self: start; }
.study-meta { font: 400 11px/1.4 var(--mono); color: var(--label); white-space: nowrap; }
.study-actions { display: flex; gap: 6px; opacity: .55; transition: opacity .12s; }
.study-row:hover .study-actions, .study-row:focus-within .study-actions { opacity: 1; }
.study-actions .tool { padding: 6px 10px; font-size: 12px; }
@media (max-width: 640px) {
  .study-row { grid-template-columns: 1fr; }
  .study-actions { opacity: 1; }
}
#map-wrap { flex: 1; position: relative; min-width: 0; }
#map { position: absolute; inset: 0; }

/* ---------- toolbar ---------- */

#toolbar {
  position: absolute; top: 12px; left: 12px; right: 12px; z-index: 5;
  display: flex; gap: 6px; align-items: center; pointer-events: none;
  flex-wrap: wrap;
}
#toolbar > * { pointer-events: auto; }
#toolbar .spacer { flex: 1; }
#layers {
  position: absolute; left: 12px; bottom: 28px; z-index: 5;
  display: flex; gap: 6px; align-items: center;
}

.tool {
  border: 1px solid var(--rule); background: var(--white); color: var(--ink);
  border-radius: 4px; padding: 8px 13px; font: 500 13px/1 var(--voice);
  cursor: pointer;
}
.tool:hover:not(:disabled) { border-color: var(--label); }
.tool:disabled { color: var(--label); opacity: .5; cursor: default; }
.tool.primary {
  background: var(--blue); border-color: var(--blue); color: var(--white);
}
.tool.primary:hover:not(:disabled) { background: #2F53E0; border-color: #2F53E0; }
.tool.primary.active { background: #2445CB; border-color: #2445CB; }
.tool.on, .tool.active {
  background: var(--blue-soft); color: var(--blue); border-color: var(--blue-edge);
}

.seg {
  display: inline-flex; background: var(--white);
  border: 1px solid var(--rule); border-radius: 4px; overflow: hidden;
}
.seg button {
  border: 0; background: transparent; padding: 8px 12px;
  font: 500 12px/1 var(--mono); letter-spacing: .02em;
  color: var(--label); cursor: pointer;
}
.seg button.on { background: var(--blue-soft); color: var(--blue); }

select.tool { padding: 7px 8px; font-weight: 400; max-width: 170px; }

/* the Upload menu in the toolbar */
.tool-menu { position: relative; margin: 0; font-size: inherit; }
.tool-menu > summary { list-style: none; display: inline-block; }
.tool-menu > summary::-webkit-details-marker { display: none; }
.tool-menu[open] > summary { background: var(--blue-soft); color: var(--blue);
  border-color: var(--blue-edge); margin: 0; }
.menu-list {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 6;
  min-width: 300px; background: var(--white); border: 1px solid var(--rule);
  border-radius: 6px; box-shadow: 0 8px 28px rgba(16,27,46,.14); padding: 6px;
  display: grid; gap: 2px;
}
.menu-list button {
  display: grid; gap: 2px; text-align: left; width: 100%; border: 0;
  background: transparent; border-radius: 4px; padding: 8px 10px;
  font: 500 13px/1.3 var(--voice); color: var(--ink); cursor: pointer;
}
.menu-list button:hover { background: var(--paper); }
.menu-list button span { font: 400 11px/1.4 var(--mono); color: var(--label); }

/* map popups */
.maplibregl-popup-content {
  font: 13px/1.4 var(--voice); padding: 9px 11px; border-radius: 4px;
  border: 1px solid var(--rule); box-shadow: 0 2px 10px rgba(16,27,46,.10);
}
.maplibregl-popup-content b { display: block; color: var(--ink); }
.maplibregl-popup-content span {
  color: var(--label); font: 11.5px/1.45 var(--mono);
}

/* ---------- panel ---------- */

#panel {
  width: 460px; flex: none; overflow-y: auto; background: var(--paper);
  border-right: 1px solid var(--rule); padding: 20px 18px 8px;
  display: flex; flex-direction: column; gap: 12px;
}
#panel footer {
  color: var(--label); font: 11px/1.5 var(--mono); letter-spacing: .04em;
  text-transform: uppercase; text-align: center; padding: 10px 0 14px;
}
#panel footer a { color: inherit; }

.card {
  background: var(--white); border: 1px solid var(--rule); border-radius: 4px;
  padding: 15px 15px 13px;
}
.card h2 {
  margin: 0 0 11px; font: 500 11px/1.4 var(--mono); letter-spacing: .09em;
  text-transform: uppercase; color: var(--label);
  display: flex; align-items: baseline; gap: 8px;
}
.card h2 .src {
  font-weight: 400; text-transform: none; letter-spacing: .02em;
  color: var(--label); font-size: 10.5px; margin-left: auto; opacity: .85;
}
.muted-card {
  color: var(--slate); display: flex; flex-direction: column; gap: 5px;
  font-size: 14px;
}
.muted-card b { color: var(--ink); font-weight: 500; font-size: 15px; }

/* ---------- evidence: numbers, units, field labels ---------- */

.stat-row { display: flex; gap: 10px; }
.stat { flex: 1; background: var(--paper); border-radius: 4px; padding: 9px 11px; }
.stat b {
  display: block; font: 500 21px/1.15 var(--mono); letter-spacing: -.02em;
  color: var(--ink);
}
.stat span {
  display: block; margin-top: 3px; color: var(--label);
  font: 11px/1.3 var(--mono); letter-spacing: .02em;
}

table {
  width: 100%; border-collapse: collapse; font: 11.5px/1.45 var(--mono);
  margin: 8px 0 2px;
}
th {
  text-align: left; color: var(--label); font-weight: 500; font-size: 10px;
  text-transform: uppercase; letter-spacing: .07em;
  padding: 3px 6px 4px 0; border-bottom: 1px solid var(--rule);
}
td {
  padding: 5px 6px 5px 0; border-top: 1px solid var(--paper);
  font-variant-numeric: tabular-nums; color: var(--ink);
}
td.num, th.num { text-align: right; }
tbody tr:first-child td { border-top: 0; }

/* Private storm drainage: one block per area rather than a table — the
   panel is 430 px wide and a six-column table truncates every control. */
.da-row {
  border-top: 1px solid var(--rule); padding: 9px 0 10px;
}
.da-row:first-child { border-top: 0; }
.da-head {
  display: flex; align-items: baseline; gap: 8px;
  font: 11.5px/1.4 var(--mono);
}
.da-name {
  flex: 1 1 auto; color: var(--ink); overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
}
.da-ac {
  flex: 0 0 auto; color: var(--label); font-variant-numeric: tabular-nums;
}
.da-controls {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: 6px;
}
.da-controls select, .da-controls input[type=number] {
  width: 100%; margin-top: 0; padding: 5px 6px; font-size: 11px;
}
.da-controls > select:nth-of-type(3) { grid-column: 1 / 2; }
.da-tc {
  grid-column: 2 / 3; font-size: 9.5px; text-align: left;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.da-tc input[type=number] { width: 100%; margin-top: 3px; }
.da-tc.off { opacity: .4; }
.linky {
  background: none; border: 0; padding: 2px 4px; cursor: pointer;
  color: var(--label); font: 12px/1 var(--mono);
}
.linky:hover { color: var(--ink); }

label { font: 11px/1.4 var(--mono); letter-spacing: .04em;
  text-transform: uppercase; color: var(--label); display: block; }
select, input[type=number] {
  width: 100%; margin-top: 4px; padding: 7px 8px;
  font: 13px/1.3 var(--voice); border: 1px solid var(--rule);
  border-radius: 4px; background: var(--white); color: var(--ink);
}
input[type=number] { font-family: var(--mono); font-size: 12.5px; }
select:focus, input:focus { border-color: var(--blue); }
.two-col { display: flex; gap: 10px; margin-bottom: 10px; }
.two-col label { flex: 1; min-width: 0; }
.inline-field {
  display: flex; align-items: center; gap: 8px; margin-top: 8px;
}
.inline-field select, .inline-field input { width: auto; flex: 1; margin: 0; }
.check {
  display: flex; gap: 7px; align-items: flex-start; margin-top: 10px;
  font: 12px/1.4 var(--voice); text-transform: none; letter-spacing: 0;
  color: var(--slate);
}
.check input { margin: 1px 0 0; accent-color: var(--blue); }
.check .src { color: var(--label); }

.hint { color: var(--slate); font-size: 12.5px; line-height: 1.5;
  margin: 6px 0 2px; }

/* Manual rainfall entry (no Atlas 14 answer for the site). */
.rain-manual { margin-top: 8px; }
.rain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 10px;
  margin: 10px 0; }
.rain-manual-err { color: #B42318; font-size: 12.5px; line-height: 1.5;
  margin: 0 0 8px; }
.rain-manual .tool { width: 100%; }

details { margin-top: 10px; font-size: 13px; }
summary { cursor: pointer; color: var(--blue); font-weight: 500;
  font-size: 12.5px; }
details[open] summary { margin-bottom: 6px; }

/* ---------- panel steps (2026-10-18) ----------
   The cards are grouped into numbered steps - Site, Inputs, Results,
   Mitigation, Report (Road and Surface for those tools) - each a
   <details> with a one-line status in its header. app.js keeps the
   furthest step open and folds the ones before it; the user can open any.
   Inside a step the cards go flat: one white box, hairlines between. */
.step { margin: 0; font-size: inherit; background: var(--white);
  border: 1px solid var(--rule); border-radius: 4px; }
.step > summary {
  list-style: none; display: flex; align-items: center; gap: 10px;
  margin: 0; padding: 11px 14px; cursor: pointer; color: var(--ink);
  font: 500 13px/1.3 var(--voice);
}
.step > summary::-webkit-details-marker { display: none; }
.step > summary::after {
  content: "–"; flex: none; width: 14px; text-align: center;
  color: var(--label); font: 500 14px/1 var(--mono);
}
.step:not([open]) > summary::after { content: "+"; }
.step[open] > summary { margin-bottom: 0; border-bottom: 1px solid var(--rule); }
.step > summary:hover { background: var(--paper); border-radius: 4px 4px 0 0; }
.step-n { font: 500 11px/1 var(--mono); color: var(--blue); letter-spacing: .08em; }
.step-title { flex: none; }
.step-status {
  margin-left: auto; min-width: 0; overflow: hidden; text-overflow: ellipsis;
  white-space: nowrap; font: 400 11px/1.3 var(--mono); color: var(--label);
  letter-spacing: .02em; text-align: right;
}
.step-body { display: flex; flex-direction: column; }
.step .card { border: 0; border-radius: 0; padding: 13px 14px 12px; }
.step .card + .card { border-top: 1px solid var(--rule); }
.step .card[hidden] + .card { border-top: 0; }

/* ---------- state ---------- */

.pending {
  color: var(--slate); font-size: 13px; display: flex; gap: 9px;
  align-items: center;
}
.pending::before {
  content: ""; width: 12px; height: 12px; border-radius: 50%;
  border: 2px solid var(--rule); border-top-color: var(--blue); flex: none;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .pending::before { animation-duration: 2.4s; }
}

#warnings:empty, #impact-flags:empty { display: none; }
#impact-flags .hint { margin: 8px 0 0; }

/* Assumptions card: the whole card is the toggle; rows are plain hints. */
#assumptions { margin: 0; }
#assumptions > summary { list-style: none; color: inherit; }
#assumptions > summary::-webkit-details-marker { display: none; }
#assumptions > summary h2 { margin: 0; }
#assumptions > summary h2::after { content: "Show"; margin-left: auto;
  color: var(--blue); letter-spacing: .04em; }
#assumptions[open] > summary h2::after { content: "Hide"; }
#assumptions-count { margin-left: 0; }
#assumptions[open] > summary h2 { margin-bottom: 8px; }
#assumptions-list .hint { margin: 0; padding: 6px 0;
  border-top: 1px solid var(--rule); }
.warn {
  background: var(--note-bg); border: 1px solid var(--note-edge);
  color: var(--note); border-radius: 4px; padding: 9px 11px;
  font-size: 13px; line-height: 1.5; margin-bottom: 8px;
}
/* Collapsed notes (warnings.js): a <=10-word headline, full text on click. */
details.warn > summary, details.hint > summary {
  cursor: pointer; list-style: none; color: inherit; font-weight: 500;
}
details.warn > summary::-webkit-details-marker,
details.hint > summary::-webkit-details-marker { display: none; }
details.warn > summary::after, details.hint > summary::after {
  content: " more"; opacity: 0.6; font-size: 0.9em;
}
details[open].warn > summary::after,
details[open].hint > summary::after { content: " less"; }
.note-more { margin-top: 6px; opacity: 0.85; }
.error {
  background: var(--bad-bg); border-color: var(--bad-edge); color: var(--bad);
}
.error .retry {
  margin-left: 6px; padding: 3px 12px; font: 600 12.5px/1.4 var(--voice);
  color: var(--white); background: var(--blue); border: 0;
  border-radius: 4px; cursor: pointer;
}
.error .retry:hover { filter: brightness(1.08); }
#still-working { color: var(--slate); font-size: 13px; }

.ok  { color: var(--good); font-weight: 500; }
.bad { color: var(--bad); font-weight: 500; }
/* A stated assumption that changes the numbers (soils card): red, in the
   card it belongs to, not a dismissible note. */
.banner-bad {
  background: var(--bad-bg); border: 1px solid var(--bad-edge);
  color: var(--bad); font-weight: 500; border-radius: 4px;
  padding: 8px 10px; margin: 6px 0 8px; font-size: 12.5px; line-height: 1.4;
}

/* ---------- soils ---------- */

.hsg-bar { display: flex; align-items: center; gap: 8px; margin: 5px 0; }
.hsg-bar .tag {
  width: 58px; font: 500 12px/1 var(--mono); color: var(--ink);
}
.hsg-bar .track {
  flex: 1; height: 8px; background: var(--paper); border-radius: 2px;
  overflow: hidden;
}
.hsg-bar .fill { height: 100%; background: var(--blue); }
.hsg-bar .pct {
  width: 44px; text-align: right; font: 12px/1 var(--mono);
  color: var(--label); font-variant-numeric: tabular-nums;
}
#soil-unit-list {
  margin: 6px 0 0; padding-left: 16px; color: var(--slate); font-size: 12.5px;
}

/* ---------- time of concentration ---------- */

.tc-grid {
  display: grid; grid-template-columns: 78px repeat(3, 1fr);
  gap: 5px 6px; align-items: center; font-size: 12px; margin: 6px 0 10px;
}
.tc-grid .rowlab {
  color: var(--ink); font: 500 11.5px/1 var(--mono); text-transform: none;
  letter-spacing: 0;
}
.tc-grid input { padding: 5px 6px; font-size: 12px; margin: 0; }
.tc-grid select { padding: 5px 6px; font-size: 12px; margin: 0; }
.tc-grid .colhead {
  color: var(--label); font: 10px/1.2 var(--mono); text-transform: uppercase;
  letter-spacing: .06em;
}
.tc-cond {
  margin: 10px 0 3px; font: 500 11px/1.4 var(--mono); letter-spacing: .08em;
  text-transform: uppercase; color: var(--label);
}

/* ---------- results ---------- */

#storm-chips { margin-bottom: 8px; }
#chart-wrap { position: relative; height: 240px; }

#comp-list { list-style: none; margin: 8px 0 0; padding: 0; }
.finding {
  display: grid; grid-template-columns: 84px 1fr; column-gap: 9px; row-gap: 2px;
  padding: 8px 0; border-top: 1px solid var(--rule); font-size: 13px;
}
.finding:first-child { border-top: 0; }
.finding b { align-self: start; font-weight: 500; }
.finding .cite { color: var(--label); font: 10.5px/1.4 var(--mono);
  grid-column: 2; }
.finding .detail { grid-column: 2; color: var(--slate); font-size: 12.5px; }

.pill {
  display: inline-block; grid-row: span 3; align-self: start;
  justify-self: start; font: 500 10px/1.3 var(--mono);
  text-transform: uppercase; letter-spacing: .06em; padding: 4px 7px;
  border-radius: 3px; background: var(--paper); color: var(--label);
  text-align: center;
}
.pill.pass { background: var(--good-bg); color: var(--good); }
.pill.fail { background: var(--bad-bg); color: var(--bad); }
.pill.review { background: var(--note-bg); color: var(--note); }
.pill.not_evaluated { background: var(--paper); color: var(--label); }

#flood-zones { margin: 8px 0 4px; display: flex; flex-wrap: wrap; gap: 4px; }
#flood-statement.hint, #flood-statement.warn { font-size: 12.5px; }

.current-row td { color: var(--ink); font-weight: 500;
  background: var(--blue-soft); }
.muted-row td { color: var(--label); }
#program-table tbody tr { cursor: pointer; }
#program-table tbody tr:hover td { background: var(--blue-soft); }

.suggestion { margin-bottom: 8px; font-size: 13px; color: var(--slate); }
.suggestion b { display: block; margin-bottom: 2px; color: var(--ink);
  font-weight: 500; }

#poi-pending { color: var(--slate); font-size: 13px; }

/* ---------- map legend ---------- */

.map-legend {
  position: absolute; left: 12px; bottom: 70px; z-index: 4;
  background: var(--white); border: 1px solid var(--rule); border-radius: 4px;
  box-shadow: 0 1px 4px rgba(16,27,46,.12);
  max-height: calc(100% - 120px); overflow: auto; max-width: 250px;
}
.map-legend summary {
  padding: 7px 11px; cursor: pointer; list-style: none;
  font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--label);
}
.map-legend summary::-webkit-details-marker { display: none; }
.map-legend summary::after { content: " –"; }
.map-legend:not([open]) summary::after { content: " +"; }
.map-legend ul { list-style: none; margin: 0; padding: 0 11px 9px; }
.map-legend li {
  display: flex; align-items: center; gap: 8px; margin-top: 5px;
  font-size: 12px; line-height: 1.25; color: var(--ink);
}
.map-legend li.src { font: 400 10.5px var(--mono); color: var(--label); margin-top: 7px; }
.map-legend .sws { display: inline-flex; gap: 2px; flex: none; min-width: 22px; }
.map-legend .sw {
  display: inline-block; width: 22px; height: 14px; box-sizing: border-box;
  border-radius: 2px; flex: none;
}
.map-legend .sw.ln { height: 0; margin: 7px 0; border-radius: 0; }
.map-legend .sw.pin { width: 10px; height: 10px; margin: 2px 6px; border-radius: 50%; }
.map-legend .sw.xing {
  width: 16px; height: 16px; margin: 0 3px; border-radius: 50%;
  background: var(--blue); color: var(--white);
  font: 500 9px/16px var(--mono); text-align: center;
}
.map-legend .sw.hsg {
  width: 17px; color: var(--white); text-align: center;
  font: 500 9.5px/14px var(--mono); opacity: .85;
}
.xing-marker {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--blue); color: var(--white);
  font: 500 11px/1 var(--mono);
  display: flex; align-items: center; justify-content: center;
  border: 2px solid var(--white); box-shadow: 0 1px 4px rgba(16,27,46,.35);
  cursor: pointer;
}
.sb-marker {
  padding: 1px 5px; border-radius: 3px;
  background: var(--white); color: var(--slate);
  font: 500 10.5px/1.4 var(--mono); border: 1px solid var(--rule);
  box-shadow: 0 1px 3px rgba(16,27,46,.2); pointer-events: none;
}
#sb-table td:last-child { color: var(--label); font-family: var(--mono);
  font-size: 11px; }
#road-notes { margin-top: 6px; }
#road-notes .hint { margin: 3px 0; }
.culvert-size { font-size: 17px; font-weight: 500; color: var(--ink);
  margin: 0 0 2px; }
.culvert-size.bad { color: var(--bad); }
#culvert-notes .hint { margin: 3px 0; }

/* Crossing plan + section (2026-10-19): two inline SVGs drawn from the
   row's `section` object, opened by clicking a row or a map marker. */
#road-table tbody tr { cursor: pointer; }
#road-table tbody tr:hover td { background: var(--paper); }
#road-table tbody tr.open td { background: var(--blue-soft); }
#xing-detail { margin-top: 10px; padding-top: 10px;
  border-top: 1px solid var(--rule); }
#xing-detail h3 {
  margin: 0 0 4px; font: 500 11px/1.4 var(--mono); letter-spacing: .09em;
  text-transform: uppercase; color: var(--label);
  display: flex; align-items: baseline; gap: 8px;
}
#xing-detail h3 .close {
  margin-left: auto; background: none; border: 0; color: var(--label);
  font: 16px/1 var(--voice); cursor: pointer; padding: 0 2px;
}
#xing-detail h3 .close:hover { color: var(--ink); }
.xing-fig { margin: 8px 0 0; }
.xing-fig figcaption {
  display: flex; justify-content: space-between; align-items: baseline;
  font: 500 10px/1.4 var(--mono); text-transform: uppercase;
  letter-spacing: .07em; color: var(--label); margin-bottom: 4px;
}
.xing-fig figcaption a { color: var(--blue); text-decoration: none;
  text-transform: none; letter-spacing: 0; }
.xing-fig figcaption a:hover { text-decoration: underline; }
.xing-fig svg { width: 100%; height: auto; display: block;
  background: var(--white); border: 1px solid var(--rule);
  border-radius: 3px; }
#xing-detail-table td:first-child { color: var(--label); }
#xing-detail-notes .hint { margin: 3px 0; }

/* ---------- auth + billing gate (auth.js) ---------- */

/* Full-bleed so nothing behind it is readable or clickable while the
   gate is up: the map and panel keep rendering underneath, and a
   half-covering overlay would leave the study controls reachable. */
.ds-gate {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(16, 27, 46, .55);
  backdrop-filter: blur(3px);
}
.ds-gate[hidden] { display: none; }

.ds-gate-card {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 32px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  box-shadow: 0 12px 40px rgba(16, 27, 46, .18);
}
.ds-gate-card h2 {
  font-family: var(--voice);
  font-size: 22px;
  color: var(--ink);
  margin: 12px 0 6px;
  letter-spacing: -.01em;
}
.ds-gate-card p {
  font-family: var(--voice);
  font-size: 14px;
  line-height: 1.5;
  color: var(--slate);
  margin: 0 0 20px;
}
.ds-gate-actions { display: grid; gap: 8px; }
.ds-gate-card button {
  font-family: var(--voice);
  font-size: 14px;
  padding: 11px 18px;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
}
.ds-primary { background: var(--blue); color: var(--white); }
.ds-primary:hover { filter: brightness(1.06); }
.ds-secondary {
  background: var(--white);
  color: var(--ink);
  border-color: var(--rule) !important;
}
.ds-secondary:hover { background: var(--paper); }
.ds-gate-note {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--label);
  margin: 14px 0 0 !important;
  min-height: 1em;
}
.ds-gate-note a { color: inherit; }

/* Signed-in chrome in the top bar (moved from the panel header 10-18). */
#ds-user {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: flex-end;
}
#ds-plan {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 3px 7px;
  border-radius: 4px;
}
.ds-plan-ok   { color: var(--good); background: var(--good-bg); }
.ds-plan-free { color: var(--blue); background: var(--blue-soft); }
.ds-plan-out  { color: var(--bad);  background: var(--bad-bg); }

/* ---------- placed detention pond ---------- */
.pond-verdict {
  border-radius: 4px; padding: 10px 12px; margin: 2px 0 8px;
  background: var(--paper); border-left: 4px solid var(--slate);
}
.pond-verdict b { display: block; font: 600 17px/1.25 var(--voice);
  color: var(--ink); }
.pond-verdict span { display: block; margin-top: 4px; color: var(--slate);
  font-size: 12.5px; line-height: 1.45; }
.pond-verdict.good { border-left-color: var(--good); background: var(--good-bg); }
.pond-verdict.good b { color: var(--good); }
.pond-verdict.short b, .pond-verdict.bad b { color: var(--bad); }
.pond-verdict.short, .pond-verdict.bad { border-left-color: var(--bad); }
.pond-verdict.checking { opacity: .55; }
.pond-tools { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 4px; }
.pond-tools .tool { padding: 5px 9px; font-size: 12px; }
.pond-depths { margin: 8px 0 0; }
#pond-disclaimer { margin-top: 10px; font-size: 12px; }