/* The requested dark reference-tool theme is scoped to these new pages.
   Existing app previews, waitlist controls and the shared brand palette stay intact. */
.tools-page {
  --tool-bg: #0D1712;
  --tool-paper: #F4EFE6;
  --tool-gold: #D4A359;
  --tool-panel: #132019;
  --tool-rule: rgba(244,239,230,.17);
  --tool-muted: rgba(244,239,230,.74);
  background: var(--tool-bg);
}
.tools-main { color: var(--tool-paper); background: var(--tool-bg); }
.tools-wrap { padding-top: 34px; padding-bottom: 90px; }
.tools-main [hidden] { display: none !important; }
.tools-main .tool-hero { padding-bottom: 28px; }
.tools-main .tool-back { display: inline-flex; align-items: center; min-height: 44px; margin-bottom: 30px; color: var(--tool-muted); text-decoration: none; font: 12px/1.5 var(--mono); }
.tools-main .tool-back:hover { color: var(--tool-gold); }
.tools-main .tool-hero-meta { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 24px; align-items: center; }
.tools-main .tool-eyebrow { font: 10px/1.8 var(--mono); letter-spacing: .12em; color: var(--tool-gold); }
.tools-main .tool-open-label { display: flex; gap: 9px; align-items: center; font: 9px/1.8 var(--mono); letter-spacing: .075em; color: var(--tool-muted); }
.tools-main .tool-open-label > span, .tools-main .tool-local-note > span { width: 6px; height: 6px; flex: 0 0 6px; background: var(--tool-gold); border-radius: 50%; }
.tools-main h1 { max-width: 17ch; margin-bottom: 28px; font: 400 clamp(42px,5.7vw,80px)/1.08 var(--serif); letter-spacing: -.045em; text-wrap: balance; }
.tools-main h1 em, .tools-main .tool-section h2 em, .tools-main .tool-result-panel h2 em { color: var(--tool-gold); font-weight: 400; }
.tools-main .tool-direct { max-width: 79ch; color: var(--tool-muted); font-size: clamp(15px,1.3vw,17px); line-height: 1.85; }
.tools-main .tool-lead-source { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 14px; margin-bottom: 36px; max-width: 100%; color: var(--tool-gold); font: 10px/1.7 var(--mono); }
.tools-main .tool-lead-source a { display: inline-flex; align-items: center; min-height: 44px; max-width: 100%; overflow-wrap: anywhere; }
.tools-main .tool-lead-source > span { color: var(--tool-muted); }
.tools-main .tool-stage { display: grid; grid-template-columns: minmax(0,.92fr) minmax(0,1.08fr); gap: 24px; align-items: start; margin-bottom: 74px; }
.tools-main .tool-controls, .tools-main .tool-result-panel { min-width: 0; border: 1px solid var(--tool-rule); background: var(--tool-panel); padding: clamp(22px,2.5vw,36px); }
.tools-main .tool-result-panel { border-top: 2px solid var(--tool-gold); }
.tools-main .tool-panel-heading { padding-bottom: 24px; margin-bottom: 24px; border-bottom: 1px solid var(--tool-rule); }
.tools-main .tool-panel-heading .tool-eyebrow { margin-bottom: 10px; }
.tools-main .tool-panel-heading h2 { font: 400 clamp(26px,2.7vw,36px)/1.2 var(--serif); letter-spacing: -.025em; }
.tools-main .tool-fields { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px 16px; }
.tools-main .tool-field { min-width: 0; }
.tools-main .tool-field-wide { grid-column: 1 / -1; }
.tools-main .tool-field label { display: block; margin-bottom: 9px; color: var(--tool-paper); font-size: 13px; font-weight: 500; line-height: 1.65; }
.tools-main .tool-input-wrap { display: flex; width: 100%; align-items: center; border: 1px solid rgba(244,239,230,.27); background: var(--tool-bg); }
.tools-main .tool-input-wrap:focus-within { border-color: var(--tool-gold); }
.tools-main input[type=number], .tools-main select { width: 100%; min-width: 0; min-height: 48px; border: 1px solid rgba(244,239,230,.27); border-radius: 0; padding: 12px; background: var(--tool-bg); color: var(--tool-paper); font: 13px/1.6 var(--mono); color-scheme: dark; }
.tools-main .tool-input-wrap input { flex: 1 1 0; width: 0; border: 0; }
.tools-main input::placeholder { color: rgba(244,239,230,.48); font-size: 11px; }
.tools-main select { text-overflow: ellipsis; }
.tools-main select:disabled { color: rgba(244,239,230,.55); opacity: 1; border-color: var(--tool-rule); }
.tools-main .tool-input-unit { flex: 0 0 auto; padding-right: 12px; color: var(--tool-muted); font: 10px/1.5 var(--mono); }
.tools-main .tool-field-hint { margin-top: 8px; color: var(--tool-muted); font-size: 11px; line-height: 1.7; }
.tools-main .tool-personal-band { padding-top: 18px; border-top: 1px solid var(--tool-rule); }
.tools-main .tool-personal-band summary { min-height: 44px; font-size: 12px; color: var(--tool-paper); }
.tools-main .tool-personal-band summary > span { color: var(--tool-gold); font: 10px/1.6 var(--mono); margin-left: 5px; }
.tools-main .tool-personal-band > p { color: var(--tool-muted); font-size: 12px; line-height: 1.8; margin: 0 0 18px; }
.tools-main .tool-calculate { display: flex; justify-content: space-between; align-items: center; gap: 20px; width: 100%; min-height: 50px; margin-top: 30px; padding: 12px 17px; background: var(--tool-gold); color: var(--tool-bg); font-size: 13px; font-weight: 600; }
.tools-main .tool-calculate:hover { background: color-mix(in srgb,var(--tool-gold) 86%,white); }
.tools-main .tool-calculate > span { font-size: 20px; font-weight: 400; }
.tools-main .tool-local-note { display: flex; gap: 10px; align-items: flex-start; margin-top: 20px; max-width: 76ch; color: var(--tool-muted); font-size: 11px; line-height: 1.8; }
.tools-main .tool-local-note > span { margin-top: 7px; }
.tools-main .tool-result-lead { color: var(--tool-paper); font: 400 clamp(18px,2vw,23px)/1.55 var(--serif); margin-bottom: 20px; overflow-wrap: anywhere; }
.tools-main .tool-result-list { margin: 0 0 26px; }
.tools-main .tool-result-row { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,.9fr); gap: 18px; padding: 15px 0; border-bottom: 1px solid var(--tool-rule); align-items: start; }
.tools-main .tool-result-row dt { color: var(--tool-muted); font-size: 12px; line-height: 1.7; }
.tools-main .tool-result-row dd { margin: 0; color: var(--tool-gold); font: 13px/1.7 var(--mono); text-align: right; overflow-wrap: anywhere; }
.tools-main .tool-plots { max-width: 100%; margin: 24px 0; }
.tools-main .tool-plots:empty { display: none; }
.tools-main .tool-range-plot { display: block; width: 100%; max-width: 100%; height: auto; background: var(--tool-bg); border: 1px solid var(--tool-rule); }
.tools-main .tool-detail { margin-top: 18px; }
.tools-main .tool-note, .tools-main .tool-context { color: var(--tool-muted); font-size: 12px; line-height: 1.85; margin-top: 14px; overflow-wrap: anywhere; }
.tools-main .tool-reference-list { padding-left: 20px; margin: 12px 0 0; color: var(--tool-gold); font-size: 12px; line-height: 1.8; }
.tools-main .tool-reference-list li { padding: 7px 0 7px 6px; overflow-wrap: anywhere; }
.tools-main .tool-reference-list a { display: inline-flex; align-items: center; min-height: 44px; padding-block: 5px; text-underline-offset: .25em; }
.tools-main .tool-reference-list span { display: block; margin-top: 3px; color: var(--tool-muted); font-size: 11px; }
.tools-main .tool-detail .tool-reference-list { font-size: 11px; margin-top: 12px; }
.tools-main .tool-rule { padding: 22px 0; border-bottom: 1px solid var(--tool-rule); }
.tools-main .tool-rule:first-child { padding-top: 0; }
.tools-main .tool-rule > .section-label { color: var(--tool-gold); font: 9px/1.8 var(--mono); letter-spacing: .08em; margin-bottom: 9px; }
.tools-main .tool-rule h3 { color: var(--tool-paper); font: 400 24px/1.3 var(--serif); margin-bottom: 12px; }
.tools-main .tool-rule > p:not(.section-label) { color: var(--tool-muted); font-size: 13px; line-height: 1.85; margin-top: 12px; }
.tools-main .scorecard-actions { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; padding-top: 24px; margin-top: 26px; border-top: 1px solid var(--tool-rule); }
.tools-main .scorecard-actions button { display: flex; justify-content: space-between; align-items: center; gap: 10px; min-height: 46px; padding: 10px 12px; border: 1px solid rgba(212,163,89,.55); background: transparent; color: var(--tool-gold); text-align: left; font: 11px/1.6 var(--mono); }
.tools-main .scorecard-actions button:hover { background: rgba(212,163,89,.08); border-color: var(--tool-gold); }
.tools-main .scorecard-status { min-height: 1.8em; margin-top: 12px; color: var(--tool-muted); font-size: 11px; line-height: 1.8; }
.tools-main .tool-section { margin-top: 64px; padding-top: 38px; border-top: 1px solid var(--tool-rule); scroll-margin-top: 110px; }
.tools-main .tool-section > .tool-eyebrow { margin-bottom: 17px; }
.tools-main .tool-section h2 { margin-bottom: 28px; font: 400 clamp(30px,3.5vw,46px)/1.15 var(--serif); letter-spacing: -.035em; }
.tools-main .tool-section-intro { max-width: 78ch; color: var(--tool-muted); font-size: 15px; line-height: 1.9; margin-bottom: 28px; }
.tools-main .tool-method-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 38px; }
.tools-main .tool-method-grid > div { min-width: 0; }
.tools-main .tool-method-grid p { color: var(--tool-muted); font-size: 14px; line-height: 1.9; margin-bottom: 20px; }
.tools-main .tool-method-grid h3 { color: var(--tool-paper); font: 400 24px/1.4 var(--serif); margin-bottom: 14px; }
.tools-main .tool-method-source { display: flex; flex-wrap: wrap; gap: 10px; color: var(--tool-gold); font: 11px/1.9 var(--mono); margin-top: 22px; }
.tools-main .tool-method-source a { display: inline-flex; align-items: center; min-height: 44px; }
.tools-main .tool-formula { padding: 20px; border-left: 2px solid var(--tool-gold); background: var(--tool-panel); }
.tools-main .tool-formula p { color: var(--tool-paper); font: 11px/1.9 var(--mono); margin-bottom: 15px; overflow-wrap: anywhere; }
.tools-main .tool-formula p:last-child { margin-bottom: 0; }
.tools-main .tool-method-note { padding: 17px; margin-top: 26px; border: 1px solid rgba(212,163,89,.35); }
.tools-main .tool-method-note > p:last-child { margin-top: 8px; color: var(--tool-muted); font-size: 12px; line-height: 1.8; }
.tools-main .tool-compound-group { margin: 0 0 25px; padding: 0; border: 0; min-width: 0; }
.tools-main .tool-compound-group legend { padding: 0 0 11px; font: 10px/1.8 var(--mono); color: var(--tool-gold); letter-spacing: .06em; }
.tools-main .tool-compound-options { display: grid; gap: 8px; }
.tools-main .tool-compound-options label { display: flex; align-items: center; gap: 12px; min-height: 44px; padding: 10px 12px; border: 1px solid var(--tool-rule); color: var(--tool-paper); font-size: 12px; line-height: 1.6; cursor: pointer; }
.tools-main .tool-compound-options label:has(input:checked) { border-color: var(--tool-gold); background: rgba(212,163,89,.06); }
.tools-main .tool-compound-options input { width: 16px; height: 16px; flex: 0 0 16px; accent-color: var(--tool-gold); margin: 0; }
.tools-main .tool-exposure-fields { padding-top: 24px; border-top: 1px solid var(--tool-rule); }
.tools-main .tool-table { width: 100%; table-layout: fixed; border-collapse: collapse; margin-top: 25px; color: var(--tool-paper); font-size: 13px; line-height: 1.8; }
.tools-main .tool-table caption { text-align: left; color: var(--tool-muted); padding-bottom: 18px; font: 10px/1.8 var(--mono); }
.tools-main .tool-table th, .tools-main .tool-table td { padding: 19px 18px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--tool-rule); overflow-wrap: anywhere; }
.tools-main .tool-table thead th { color: var(--tool-gold); background: var(--tool-panel); font: 11px/1.8 var(--mono); font-weight: 500; }
.tools-main .tool-table tbody th { font-weight: 500; }
.tools-main .tool-table td { color: var(--tool-muted); }
.tools-main .tool-table a { display: inline-flex; align-items: center; min-height: 44px; color: var(--tool-paper); }
.tools-main .tool-table-sub { display: block; margin-top: 6px; color: var(--tool-muted); font: 11px/1.8 var(--mono); }
.tools-main .tool-next-reading { display: grid; gap: 10px; margin-top: 46px; padding: 28px 0 0; border-top: 1px solid var(--tool-rule); }
.tools-main .tool-next-reading > a { display: inline-flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 44px; color: var(--tool-paper); font: 16px/1.6 var(--serif); text-decoration: none; border-bottom: 1px solid var(--tool-rule); padding-bottom: 10px; margin-top: 7px; }
.tools-main .tool-next-reading > a > span { color: var(--tool-gold); }
.tools-main .tool-directory-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; margin-top: 22px; }
.tools-main .tool-directory-card { display: flex; flex-direction: column; min-width: 0; min-height: 290px; border: 1px solid var(--tool-rule); padding: 28px; color: var(--tool-paper); background: var(--tool-panel); text-decoration: none; transition: border-color 150ms ease,background-color 150ms ease; }
.tools-main .tool-directory-card:hover { border-color: var(--tool-gold); background: color-mix(in srgb,var(--tool-panel) 94%,var(--tool-gold)); }
.tools-main .tool-card-heading { display: flex; gap: 15px; align-items: center; margin-bottom: 30px; }
.tools-main .tool-card-number { color: var(--tool-gold); font: 12px/1.6 var(--mono); }
.tools-main .tool-category { color: var(--tool-muted); font: 9px/1.8 var(--mono); letter-spacing: .075em; }
.tools-main .tool-card-arrow { margin-left: auto; color: var(--tool-gold); font-size: 22px; }
.tools-main .tool-directory-card h2 { max-width: 23ch; margin-bottom: 15px; font: 400 clamp(24px,2.6vw,34px)/1.2 var(--serif); letter-spacing: -.025em; }
.tools-main .tool-directory-card p { color: var(--tool-muted); font-size: 13px; line-height: 1.85; max-width: 48ch; margin-bottom: 25px; }
.tools-main .tool-card-meta { margin-top: auto; padding-top: 17px; border-top: 1px solid var(--tool-rule); color: var(--tool-gold); font: 9px/1.8 var(--mono); letter-spacing: .025em; }
.tools-main .tool-comparison-links { display: grid; border-top: 1px solid var(--tool-rule); }
.tools-main .tool-comparison-links > a { display: grid; grid-template-columns: 30px minmax(0,1fr) 20px; gap: 24px; align-items: center; min-height: 76px; padding: 18px 0; border-bottom: 1px solid var(--tool-rule); color: var(--tool-paper); text-decoration: none; font: 20px/1.5 var(--serif); }
.tools-main .tool-comparison-links > a > span:last-child { color: var(--tool-gold); }
.tools-main .tool-directory-principle > p:not(.tool-eyebrow) { max-width: 72ch; color: var(--tool-muted); font-size: 15px; line-height: 1.9; margin-bottom: 22px; }
.tools-main .tool-text-link { display: inline-flex; align-items: center; min-height: 44px; color: var(--tool-gold); font-size: 13px; }
.tools-main .tool-comparison-article .tool-hero h1 { max-width: 25ch; font-size: clamp(36px,5.2vw,68px); }
.tools-main .tool-comparison-copy { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 38px 48px; margin-top: 22px; }
.tools-main .tool-comparison-section { min-width: 0; padding-top: 25px; border-top: 1px solid var(--tool-rule); }
.tools-main .tool-comparison-section:first-child { grid-column: 1 / -1; max-width: 83ch; }
.tools-main .tool-comparison-section h2 { color: var(--tool-paper); font: 400 27px/1.4 var(--serif); margin-bottom: 20px; }
.tools-main .tool-comparison-section p { color: var(--tool-muted); font-size: 15px; line-height: 1.95; margin-bottom: 22px; }
.tools-main .tool-related-cta { display: grid; gap: 12px; margin-top: 36px; padding: 26px; border: 1px solid rgba(212,163,89,.5); background: var(--tool-panel); }
.tools-main .tool-related-cta a { display: flex; align-items: center; justify-content: space-between; min-height: 44px; gap: 20px; color: var(--tool-paper); font: 400 24px/1.5 var(--serif); text-decoration: none; }
.tools-main .tool-related-cta a > span { color: var(--tool-gold); }
.tools-main :is(.tool-back,.tool-directory-card,.tool-comparison-links a,.tool-lead-source a,.tool-calculate,.tool-controls input,.tool-controls select,.tool-controls summary,.tool-result-panel button,.tool-section a,.tool-next-reading a,.tool-related-cta a,.tool-text-link):focus-visible { outline: 2px solid var(--tool-gold); outline-offset: 4px; }
@media (max-width: 880px) {
  .tools-main .tool-stage { grid-template-columns: minmax(0,1fr); }
  .tools-main .tool-hero-meta { align-items: flex-start; flex-direction: column; gap: 11px; }
  .tools-main .tool-result-panel { min-height: 0; }
  .tools-main .tool-method-grid { gap: 28px; }
}
@media (max-width: 640px) {
  .tools-wrap { padding-top: 20px; padding-bottom: 64px; }
  .tools-main .tool-back { margin-bottom: 20px; }
  .tools-main h1 { margin-bottom: 22px; font-size: clamp(38px,9.5vw,56px); }
  .tools-main .tool-hero-meta { margin-bottom: 20px; }
  .tools-main .tool-open-label { font-size: 8px; }
  .tools-main .tool-controls, .tools-main .tool-result-panel { padding: 22px 18px; }
  .tools-main .tool-stage { gap: 18px; margin-bottom: 46px; }
  .tools-main .tool-fields { gap: 21px 12px; }
  .tools-main .tool-input-unit { font-size: 9px; padding-right: 9px; }
  .tools-main input[type=number] { padding: 12px 9px; font-size: 12px; }
  .tools-main input::placeholder { font-size: 10px; }
  .tools-main .tool-exposure-fields { grid-template-columns: minmax(0,1fr); }
  .tools-main .tool-result-row { gap: 12px; grid-template-columns: minmax(0,1fr) minmax(0,.95fr); }
  .tools-main .tool-result-row dd { font-size: 12px; }
  .tools-main .tool-section { margin-top: 42px; padding-top: 28px; }
  .tools-main .tool-method-grid, .tools-main .tool-directory-grid, .tools-main .tool-comparison-copy { grid-template-columns: minmax(0,1fr); }
  .tools-main .tool-directory-card { min-height: 0; padding: 24px; }
  .tools-main .tool-card-heading { margin-bottom: 23px; }
  .tools-main .tool-category { font-size: 8px; }
  .tools-main .tool-directory-card h2 { font-size: 29px; }
  .tools-main .tool-comparison-links > a { gap: 14px; grid-template-columns: 24px minmax(0,1fr) 18px; font-size: 19px; }
  .tools-main .tool-related-cta { padding: 22px 18px; }
  .tools-main .tool-related-cta a { font-size: 21px; }
  .tools-main .tool-comparison-section:first-child { grid-column: auto; }
  .tools-main .tool-table, .tools-main .tool-table tbody, .tools-main .tool-table tr, .tools-main .tool-table th, .tools-main .tool-table td, .tools-main .tool-table caption { display: block; width: auto; }
  .tools-main .tool-table caption { width: 100%; }
  .tools-main .tool-table thead { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .tools-main .tool-table tr { padding: 18px 0; border-bottom: 1px solid var(--tool-rule); }
  .tools-main .tool-table th, .tools-main .tool-table td { padding: 8px 0; border: 0; }
  .tools-main .tool-table tbody th { font: 400 20px/1.5 var(--serif); }
  .tools-main .tool-table td::before { content: attr(data-label); display: block; margin-bottom: 6px; color: var(--tool-gold); font: 10px/1.8 var(--mono); }
}
@media (prefers-reduced-motion: reduce) {
  .tools-main .tool-directory-card { transition: none; }
}