/* Engineering tools: the hub page and each calculator. Builds on /styles.css (and its colour tokens). */

/* Drawing colours: concrete, barrier, girder steel, outlines, rebar and the negative-moment curve */
:root {
  --dw-concrete: #142a48;
  --dw-barrier: #1c3558;
  --dw-steel: #33465f;
  --dw-edge: #8fb4e0;
  --dw-rebar: #ff9d4d;
  --ch-min: #ffb36b;
}

:root[data-theme="light"] {
  --dw-concrete: #dfe7f1;
  --dw-barrier: #cbd8e8;
  --dw-steel: #b4c0cf;
  --dw-edge: #3a5f8f;
  --dw-rebar: #c4520a;
  --ch-min: #b85c0a;
}

.tool-main {
  padding: clamp(9rem, 22vh, 12rem) clamp(1.5rem, 6vw, 6.5rem) 5rem;
}

.crumbs {
  margin: 0 0 1.25rem;
  color: var(--accent-pale);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.crumbs a {
  color: inherit;
  text-decoration: none;
}

.crumbs a:hover {
  color: var(--text);
}

.tool-main h1 {
  max-width: none;
  font-size: clamp(2.6rem, 6vw, 5rem);
  letter-spacing: -0.04em;
  line-height: 0.95;
}

.tool-main .lede {
  max-width: 46rem;
}

/* ---------- Hub ---------- */

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 1rem;
  margin-top: clamp(2.5rem, 6vh, 4rem);
  opacity: 0;
  animation: rise 0.9s 0.6s ease-out forwards;
}

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  min-height: 12rem;
  padding: 1.4rem 1.4rem 1.2rem;
  border: 1px solid rgba(var(--line-rgb), 0.22);
  color: inherit;
  text-decoration: none;
  background: rgba(var(--surface-rgb), 0.55);
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

a.tool-card:hover {
  border-color: var(--accent);
  background: rgba(var(--tint-rgb), 0.18);
  transform: translateY(-2px);
}

a.tool-card:focus-visible {
  outline: 1px solid var(--link);
  outline-offset: 3px;
}

.tool-card .tag {
  color: var(--link);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.tool-card h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.tool-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.tool-card .go {
  margin-top: auto;
  color: var(--text);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.tool-card.soon {
  opacity: 0.55;
}

.tool-card.soon .tag {
  color: var(--text-subtle);
}

/* Category filter: one radio per category; :has() hides the cards outside the checked one */
.tool-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: clamp(2rem, 5vh, 3rem) 0 0;
  padding: 0;
  border: 0;
}

.tool-filter input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.tool-filter label {
  padding: 0.45rem 0.85rem;
  border: 1px solid rgba(var(--line-rgb), 0.28);
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.tool-filter label:hover {
  color: var(--text);
}

.tool-filter input:checked + label {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(var(--tint-rgb), 0.22);
}

.tool-filter input:focus-visible + label {
  outline: 1px solid var(--link);
  outline-offset: 3px;
}

.tool-filter + .tool-grid {
  margin-top: 1.25rem;
}

.tool-card .code {
  color: var(--text-dim);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
}

.toolbox:has(#cat-concrete:checked) .tool-card:not([data-cat~="concrete"]),
.toolbox:has(#cat-steel:checked) .tool-card:not([data-cat~="steel"]),
.toolbox:has(#cat-loads:checked) .tool-card:not([data-cat~="loads"]),
.toolbox:has(#cat-sub:checked) .tool-card:not([data-cat~="sub"]),
.toolbox:has(#cat-bearings:checked) .tool-card:not([data-cat~="bearings"]),
.toolbox:has(#cat-planning:checked) .tool-card:not([data-cat~="planning"]) {
  display: none;
}

.toolbox-note {
  margin: 2.5rem 0 1.5rem;
  max-width: 46rem;
  color: var(--text-dim);
  font-size: 0.86rem;
  line-height: 1.6;
}

/* ---------- Calculator layout ---------- */

.calc {
  display: grid;
  grid-template-columns: minmax(17rem, 21rem) minmax(0, 1fr);
  gap: clamp(1.5rem, 3vw, 3rem);
  align-items: start;
  margin-top: clamp(2rem, 5vh, 3.5rem);
}

.inputs {
  position: sticky;
  top: 1rem;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
  padding: 1.25rem;
  border: 1px solid rgba(var(--line-rgb), 0.22);
  background: rgba(var(--surface-rgb), 0.7);
  scrollbar-width: thin;
}

.inputs fieldset {
  margin: 0 0 1.25rem;
  padding: 0;
  border: 0;
}

.inputs legend {
  margin-bottom: 0.6rem;
  padding: 0;
  color: var(--link);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.field {
  display: grid;
  grid-template-columns: 1fr 6.5rem;
  align-items: center;
  gap: 0.25rem 0.75rem;
  margin-bottom: 0.45rem;
}

.field label {
  color: var(--text-soft);
  font-size: 0.84rem;
  line-height: 1.3;
}

.field[hidden] {
  display: none;
}

.field-wide {
  grid-template-columns: 1fr;
}

.field label small {
  display: block;
  color: var(--text-dim);
  font-size: 0.72rem;
}

.unit-input {
  position: relative;
}

.unit-input input,
.field > input[type="text"],
.field select {
  width: 100%;
  padding: 0.42rem 0.5rem;
  border: 1px solid rgba(var(--line-rgb), 0.3);
  border-radius: 2px;
  color: var(--text);
  font: inherit;
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
  background: var(--input-bg);
}

.unit-input input {
  padding-right: 2.4rem;
}

.unit-input span {
  position: absolute;
  top: 50%;
  right: 0.5rem;
  color: var(--text-dim);
  font-size: 0.72rem;
  transform: translateY(-50%);
  pointer-events: none;
}

.unit-input input:focus,
.field select:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.25);
}

.unit-input input:invalid {
  border-color: var(--danger);
}

.actions {
  display: flex;
  gap: 0.6rem;
  position: sticky;
  bottom: -1.25rem;
  margin: 0 -1.25rem -1.25rem;
  padding: 1rem 1.25rem 1.25rem;
  background: linear-gradient(180deg, rgba(var(--surface-rgb), 0), var(--surface-solid) 35%);
}

.btn {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--accent);
  color: var(--btn-text);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: var(--btn-bg);
  cursor: pointer;
  transition: background 0.2s ease;
}

.btn:hover {
  background: var(--btn-bg-hover);
}

.btn.ghost {
  flex: 0 0 auto;
  border-color: rgba(var(--line-rgb), 0.35);
  color: var(--text);
  background: transparent;
}

.btn.ghost:hover {
  background: rgba(var(--tint-rgb), 0.22);
}

.btn:focus-visible {
  outline: 1px solid var(--link);
  outline-offset: 3px;
}

/* ---------- Results ---------- */

.results {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  min-width: 0;
}

.panel {
  padding: clamp(1rem, 2vw, 1.5rem);
  border: 1px solid rgba(var(--line-rgb), 0.18);
  background: rgba(var(--surface-rgb), 0.55);
}

.panel h2 {
  margin: 0 0 0.35rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.45rem;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.panel > p.sub {
  margin: 0 0 1rem;
  color: var(--text-dim);
  font-size: 0.82rem;
  line-height: 1.5;
}

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.summary {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.stat {
  padding: 0.85rem 0.95rem;
  border-left: 2px solid var(--accent);
  background: rgba(var(--tint-rgb), 0.12);
}

.stat .k {
  color: var(--accent-pale);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.stat .v {
  margin-top: 0.3rem;
  font-size: 1.25rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}

.stat .n {
  margin-top: 0.15rem;
  color: var(--text-dim);
  font-size: 0.74rem;
}

.stat.bad {
  border-left-color: var(--danger);
}

.drawing {
  display: block;
  width: 100%;
  height: auto;
}

.drawing text {
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}

.table-wrap {
  overflow-x: auto;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  font-variant-numeric: tabular-nums;
}

table.data th,
table.data td {
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid rgba(var(--line-rgb), 0.14);
  text-align: right;
  white-space: nowrap;
}

table.data th:first-child,
table.data td:first-child {
  text-align: left;
  white-space: normal;
}

table.data thead th {
  color: var(--accent-pale);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

table.data tbody tr:hover {
  background: rgba(var(--tint-rgb), 0.1);
}

table.data td.ok {
  color: var(--ok-text);
}

table.data td.fail {
  color: var(--danger-strong);
}

table.data tr.total td {
  font-weight: 700;
  border-bottom: 0;
}

table.data tr.selected td {
  background: rgba(var(--tint-rgb), 0.18);
}

table.data tr.selected td:first-child {
  box-shadow: inset 2px 0 0 var(--accent);
}

table.data td.text {
  min-width: 16rem;
  color: var(--text-muted);
  text-align: left;
  white-space: normal;
}

.panel > p.sub.gap {
  margin-top: 1.25rem;
}

.notes {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.6;
}

.notes li.warn {
  color: var(--warn-text);
}

.errors {
  padding: 1rem 1.25rem;
  border: 1px solid var(--danger);
  color: var(--danger-text);
  background: var(--danger-fill);
}

.errors ul {
  margin: 0.4rem 0 0;
  padding-left: 1.1rem;
}

/* Drawing and chart strokes (classes so print can recolour them) */
.dw-concrete { fill: var(--dw-concrete); stroke: var(--dw-edge); stroke-width: 1; }
.dw-barrier { fill: var(--dw-barrier); stroke: var(--dw-edge); stroke-width: 1; }
.dw-steel { fill: var(--dw-steel); stroke: var(--text-subtle); stroke-width: 1; }
.dw-bar { stroke: var(--dw-rebar); stroke-width: 2; stroke-linecap: round; }
.dw-dot { fill: var(--dw-rebar); }
.dw-hidden { stroke: var(--dw-edge); stroke-width: 1; stroke-dasharray: 6 4; opacity: 0.7; }
.dw-dim line { stroke: var(--text-subtle); stroke-width: 1; }
.dw-leader { fill: none; stroke: var(--text-soft); stroke-width: 1; }
.dw-text { fill: var(--text-soft); font-size: 17px; }
.dw-strong { font-weight: 650; fill: var(--text); }
.dw-muted { fill: var(--text-dim); font-size: 15px; }
.ch-grid { stroke: rgba(var(--line-rgb), 0.12); }
.ch-zero { stroke: rgba(var(--line-rgb), 0.5); }
.ch-girder { stroke: rgba(var(--line-rgb), 0.18); stroke-dasharray: 2 4; }
.ch-support { fill: var(--text-subtle); }
.ch-max, .ch-min { fill: none; stroke-width: 2.2; stroke-linejoin: round; }
.ch-max { stroke: var(--link); }
.ch-min { stroke: var(--ch-min); }
.ch-cap-pos, .ch-cap-neg { fill: none; stroke-width: 1.5; stroke-dasharray: 7 5; }
.ch-cap-pos { stroke: var(--link); }
.ch-cap-neg { stroke: var(--ch-min); }
.ch-pt-pos { fill: var(--bg); stroke: var(--link); stroke-width: 2; }
.ch-pt-neg { fill: var(--bg); stroke: var(--ch-min); stroke-width: 2; }
.dw-hollow { fill: var(--bg); stroke: var(--dw-rebar); stroke-width: 1.5; }
.dw-harp { fill: var(--link); }
.dw-strand { fill: none; stroke: var(--dw-rebar); stroke-width: 1.5; }
.dw-strand-harp { fill: none; stroke: var(--link); stroke-width: 2; }
.dw-strand-free { fill: none; stroke: var(--dw-rebar); stroke-width: 1.5; stroke-dasharray: 4 4; opacity: 0.55; }
.lg-strand { background: var(--dw-rebar); color: var(--dw-rebar); }
.bar-on { fill: var(--link); }
.bar-off { fill: rgba(var(--line-rgb), 0.22); }
.lg-max { background: var(--link); color: var(--link); }
.lg-min { background: var(--ch-min); color: var(--ch-min); }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  margin-top: 0.6rem;
  color: var(--text-muted);
  font-size: 0.76rem;
}

.legend i {
  display: inline-block;
  width: 1.2rem;
  height: 2px;
  margin-right: 0.4rem;
  vertical-align: middle;
}

.legend i.dash {
  background: repeating-linear-gradient(90deg, currentColor 0 5px, transparent 5px 9px) !important;
}

.disclaimer {
  color: var(--text-dim);
  font-size: 0.78rem;
  line-height: 1.6;
}

@media (max-width: 960px) {
  .calc {
    grid-template-columns: 1fr;
  }

  .inputs {
    position: static;
    max-height: none;
  }
}

@media (max-width: 760px) {
  .tool-main {
    padding-top: 8rem;
  }
}

/* Print: a clean calculation sheet on white paper */
@media print {
  :root,
  body,
  .page {
    color: #000;
    background: #fff !important;
  }

  /* Paper is always light: print with the light theme's tokens whatever is on screen */
  :root,
  :root[data-theme] {
    color-scheme: light;
    --bg: #fff;
    --text: #000;
    --text-soft: #000;
    --text-muted: #333;
    --text-subtle: #333;
    --text-dim: #444;
    --text-faint: #444;
    --link: #0f5fb8;
    --accent-pale: #333;
    --warn-text: #8a5300;
    --ch-min: #b85c0a;
  }

  .page::after,
  .masthead,
  .inputs,
  .no-print {
    display: none !important;
  }

  .tool-main {
    padding: 0;
  }

  .calc {
    display: block;
  }

  .panel {
    break-inside: avoid;
    margin-bottom: 1rem;
    border-color: #999;
    background: #fff;
  }

  .tool-main h1,
  .lede,
  .eyebrow,
  .crumbs {
    opacity: 1 !important;
    animation: none !important;
    color: #000;
  }

  .stat {
    background: #f2f6fb;
  }

  .stat .k,
  .stat .n,
  table.data thead th,
  .panel > p.sub,
  .notes,
  .disclaimer {
    color: #333;
  }

  table.data th,
  table.data td {
    border-bottom-color: #ccc;
  }

  .dw-concrete, .dw-barrier { fill: #eef1f5; stroke: #333; }
  .dw-steel { fill: #c9d0da; stroke: #333; }
  .dw-bar { stroke: #c4420a; }
  .dw-dot { fill: #c4420a; }
  .dw-dim line, .dw-leader { stroke: #333; }
  .dw-text, .dw-strong { fill: #000; }
  .dw-muted { fill: #444; }
  .ch-grid { stroke: #e2e2e2; }
  .ch-zero { stroke: #888; }
  .ch-pt-pos, .ch-pt-neg { fill: #fff; }
  .dw-hollow { fill: #fff; stroke: #c4420a; }
  .dw-harp { fill: #0f5fb8; }
  .dw-strand, .dw-strand-free { stroke: #c4420a; }
  .dw-strand-harp { stroke: #0f5fb8; }
  .bar-on { fill: #0f5fb8; }
  .bar-off { fill: #d5dbe3; }
  table.data td.ok { color: #137a43; }
  table.data td.fail { color: #b00020; }
}

/* ---------- Hand-calculation sheets (calc-sheet.js) ---------- */
.handcalc > summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  list-style: none;
}
.handcalc > summary::-webkit-details-marker { display: none; }
.handcalc > summary h2 { margin: 0; }
.handcalc > summary::after { content: "▸"; color: var(--link); }
.handcalc[open] > summary::after { content: "▾"; }
.handcalc[open] > summary { margin-bottom: 0.75rem; }
.hc-toggle { margin-left: auto; color: var(--link); font-size: 0.8rem; }
.hc-group + .hc-group { margin-top: 1.25rem; }
.hc-group h3 {
  margin: 0 0 0.4rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-pale);
}
.hc-intro { margin: 0 0 0.6rem; color: var(--text-muted); font-size: 0.88rem; }
.hc-steps { list-style: none; margin: 0; padding: 0; }
.hc-steps > li {
  padding: 0.6rem 0 0.6rem 0.8rem;
  border-left: 2px solid rgba(var(--line-rgb), 0.18);
  border-bottom: 1px solid rgba(var(--line-rgb), 0.08);
}
.hc-steps > li.hc-ok { border-left-color: var(--ok); }
.hc-steps > li.hc-fail { border-left-color: var(--danger); }
.hc-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.25rem 0.5rem; }
.hc-no { color: var(--text-dim); font-variant-numeric: tabular-nums; }
.hc-ref { margin-left: auto; color: var(--text-dim); font-size: 0.75rem; }
.hc-why { margin: 0.25rem 0 0; color: var(--text-muted); font-size: 0.86rem; line-height: 1.5; }
.hc-math {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 0.6rem;
  margin-top: 0.35rem;
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 0.84rem;
  overflow-wrap: anywhere;
}
.hc-eq { color: var(--text-soft); }
.hc-sub { color: var(--text-muted); }
.hc-res { color: var(--text); font-weight: 600; }
.hc-verdict { font-weight: 700; color: var(--ok); }
.hc-fail .hc-verdict { color: var(--danger); }

@media print {
  .handcalc > summary::after { content: none; }
  .handcalc { break-inside: auto; }
  .hc-steps > li { break-inside: avoid; }
  .hc-why, .hc-sub, .hc-intro { color: #333; }
  .hc-eq, .hc-res { color: #000; }
}
/* ---------- Project details strip and printed calc report (report.js) ---------- */
.project-panel { margin-top: clamp(1.5rem, 4vh, 2.5rem); }
.project-panel > summary {
  display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; cursor: pointer; list-style: none;
}
.project-panel > summary::-webkit-details-marker { display: none; }
.project-panel > summary h2 { margin: 0; font-size: 1.15rem; }
.project-panel > summary::after { content: "▸"; color: var(--link); }
.project-panel[open] > summary::after { content: "▾"; }
.project-panel[open] > summary { margin-bottom: 0.6rem; }
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
  gap: 0.15rem 1.25rem;
}
.project-grid .field { grid-template-columns: 1fr; gap: 0.2rem; }
.project-grid .field-wide { grid-column: span 2; }
.project-grid input {
  width: 100%;
  padding: 0.42rem 0.5rem;
  border: 1px solid rgba(var(--line-rgb), 0.3);
  border-radius: 2px;
  background: var(--input-bg);
  color: var(--text);
  font: inherit;
  font-size: 0.88rem;
  color-scheme: inherit;
}
.project-grid input:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.25); }
.project-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 0.9rem; }
.pro-offer { margin-top: 0.9rem; color: var(--text-muted); font-size: 0.86rem; }
.pro-offer strong { color: var(--text); }
@media (max-width: 560px) { .project-grid .field-wide { grid-column: auto; } }

.report-print { display: none; }

@media print {
  @page {
    size: letter;
    margin: 0.45in 0.5in 0.6in;
    @bottom-left { content: "The Bridge Enginerd · thebridgeenginerd.web.app"; font: 7pt Arial, Helvetica, sans-serif; color: #444; }
    @bottom-right { content: "Sheet " counter(page) " of " counter(pages); font: 7pt Arial, Helvetica, sans-serif; color: #000; }
  }
  body.printing-report .page { display: none !important; }
  body.printing-report .report-print { display: block; }
  .report-print { font-family: Arial, Helvetica, sans-serif; color: #000; }
  .report-frame { width: 100%; border-collapse: collapse; }
  .report-frame > thead > tr > td, .report-frame > tbody > tr > td { padding: 0; vertical-align: top; }
  .report-frame > thead td { padding-bottom: 10pt; }
  .report-head { width: 100%; border-collapse: collapse; table-layout: fixed; }
  .report-head td { border: 0.75pt solid #000; padding: 1.5pt 3pt 2pt; vertical-align: top; }
  .rh-k { display: block; font-size: 6.5pt; color: #333; line-height: 1.1; }
  .rh-v { display: block; font-size: 8.5pt; min-height: 10pt; line-height: 1.2; overflow-wrap: anywhere; }
  .rh-company { width: 24%; vertical-align: middle !important; }
  .rh-firm { display: block; font-size: 11pt; font-weight: 700; line-height: 1.2; }
  .report-title { margin: 0 0 12pt; font-size: 9pt; line-height: 1.35; }
  .report-title .rt-name { font-size: 11pt; font-weight: 700; letter-spacing: 0.02em; }
  .report-title .rt-meta { color: #444; font-size: 7.5pt; }
  .report-print .panel { border: 0; border-top: 0.75pt solid #000; padding: 6pt 0 0; margin: 0 0 10pt; background: none; break-inside: auto; }
  .report-print .panel h2 { font-family: Arial, Helvetica, sans-serif; font-size: 10pt; font-weight: 700; margin: 0 0 4pt; }
  .report-print .panel > p.sub, .report-print .hc-intro, .report-print .hc-why { font-size: 8pt; color: #222; }
  .report-print table.data { font-size: 8pt; }
  .report-print .stat { background: none; border: 0.5pt solid #999; padding: 3pt 5pt; }
  .report-print .summary { gap: 4pt; }
  .report-print .hc-math { font-family: Arial, Helvetica, sans-serif; font-size: 8.5pt; }
  .report-print .hc-head strong { font-size: 9pt; }
  .report-print .hc-group h3 { font-size: 9pt; color: #000; letter-spacing: 0.04em; }
  .report-print .hc-steps > li { padding: 3pt 0 3pt 6pt; }
  .report-print .drawing { max-height: 3.2in; }
}