/* DutyCompare — design system
   Palette: slate blue + lime accent. Type: system sans, tabular numerals
   for every rate and money figure. No web fonts, no external assets. */

:root {
  --dc-ink:        #16232b;
  --dc-ink-2:      #4a5c67;
  --dc-ink-3:      #7c8b94;
  --dc-slate:      #2f4858;
  --dc-slate-deep: #1f323d;
  --dc-slate-soft: #eef2f4;
  --dc-lime:       #84cc16;
  --dc-lime-deep:  #4d7c0f;
  --dc-lime-soft:  #f2fadf;
  --dc-bg:         #fbfbf9;
  --dc-panel:      #ffffff;
  --dc-line:       #dde5e8;
  --dc-line-firm:  #c3d0d6;
  --dc-sunk:       #f2f5f6;
  --dc-warn:       #a1571a;
  --dc-warn-soft:  #fdf4e7;
  --dc-radius:     6px;
  --dc-radius-lg:  10px;
  --dc-measure:    68ch;
  --dc-wide:       1180px;
  --dc-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --dc-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--dc-sans);
  font-size: 16.5px;
  line-height: 1.62;
  color: var(--dc-ink);
  background: var(--dc-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { letter-spacing: -0.022em; line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: clamp(1.72rem, 1.28rem + 1.9vw, 2.6rem); font-weight: 700; }
h2 { font-size: clamp(1.26rem, 1.08rem + .7vw, 1.58rem); font-weight: 700; }
h3 { font-size: 1.06rem; font-weight: 650; }
p { margin: 0 0 1em; }

a { color: var(--dc-slate-deep); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--dc-lime-deep); }

.lane-sr {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.lane-skip {
  position: absolute; left: -9999px; top: 0; z-index: 99;
  background: var(--dc-slate); color: #fff; padding: 10px 16px;
}
.lane-skip:focus { left: 8px; top: 8px; }

.lane-wrap { width: 100%; max-width: var(--dc-wide); margin: 0 auto; padding: 0 20px; }

/* ------------------------------------------------------------------ header */
.lane-header {
  background: var(--dc-panel);
  border-bottom: 2px solid var(--dc-slate);
  position: sticky; top: 0; z-index: 40;
}
.lane-header .lane-wrap {
  display: flex; align-items: center; gap: 18px;
  min-height: 62px; flex-wrap: wrap;
}
.lane-brand {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 1.12rem; font-weight: 500; color: var(--dc-ink);
  text-decoration: none; letter-spacing: -0.018em;
}
.lane-brand b { font-weight: 750; }
.lane-brandmark { width: 27px; height: 27px; flex: none; }

.lane-toggle {
  display: none; margin-left: auto; background: none; cursor: pointer;
  border: 1px solid var(--dc-line-firm); border-radius: var(--dc-radius);
  padding: 8px 9px;
}
.lane-toggle-bars { display: block; width: 18px; }
.lane-toggle-bars i {
  display: block; height: 2px; background: var(--dc-slate);
  border-radius: 1px; margin: 3px 0;
}
.lane-menu { margin-left: auto; }
.lane-menu-list {
  display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap;
}
.lane-menu-list a {
  display: block; padding: 7px 11px; border-radius: var(--dc-radius);
  font-size: .915rem; font-weight: 520; color: var(--dc-ink-2); text-decoration: none;
}
.lane-menu-list a:hover { background: var(--dc-slate-soft); color: var(--dc-slate-deep); }
.lane-menu-list a[aria-current] { color: var(--dc-ink); background: var(--dc-slate-soft); }
.lane-veil { display: none; }

/* -------------------------------------------------------------------- hero */
.lane-hero { padding: 40px 0 30px; background: var(--dc-panel); border-bottom: 1px solid var(--dc-line); }
.lane-hero h1 { max-width: 30ch; }
.lane-lead {
  max-width: var(--dc-measure); font-size: 1.075rem; color: var(--dc-ink-2); margin: 0 0 18px;
}
.lane-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.lane-chip {
  font-size: .79rem; font-weight: 600; letter-spacing: .012em;
  padding: 5px 10px; border-radius: 100px;
  background: var(--dc-slate-soft); color: var(--dc-slate-deep);
  font-variant-numeric: tabular-nums;
}

.lane-crumb { padding-top: 14px; }
.lane-crumb ol {
  display: flex; flex-wrap: wrap; gap: 6px; list-style: none;
  margin: 0; padding: 0; font-size: .82rem; color: var(--dc-ink-3);
}
.lane-crumb li + li::before { content: "/"; margin-right: 6px; color: var(--dc-line-firm); }
.lane-crumb a { color: var(--dc-ink-3); text-decoration: none; }
.lane-crumb a:hover { color: var(--dc-slate-deep); text-decoration: underline; }

/* ------------------------------------------------------------------- bands */
.lane-band { padding: 42px 0; border-top: 1px solid var(--dc-line); }
.lane-band:first-of-type { border-top: 0; }
.lane-band--alt { background: var(--dc-panel); }
.lane-band--board { background: var(--dc-slate-soft); border-top: 0; padding: 32px 0 36px; }
.lane-bandhead { max-width: var(--dc-measure); margin-bottom: 22px; }
.lane-bandhead p { color: var(--dc-ink-2); margin: 0; font-size: .97rem; }
.lane-h3 { font-size: 1.06rem; font-weight: 700; margin-bottom: 16px; }

/* ------------------------------------------------------------------- cards */
.lane-cardgrid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(258px, 1fr));
}
.lane-card {
  display: flex; flex-direction: column; gap: 5px;
  padding: 16px 17px; border: 1px solid var(--dc-line);
  border-radius: var(--dc-radius-lg); background: var(--dc-panel);
  text-decoration: none; color: inherit;
  transition: border-color .14s ease, transform .14s ease;
}
.lane-card:hover { border-color: var(--dc-line-firm); transform: translateY(-1px); }
.lane-card h3 { margin: 0; color: var(--dc-ink); }
.lane-card p { margin: 0; font-size: .88rem; color: var(--dc-ink-2); line-height: 1.5; }
.lane-cardmeta {
  margin-top: 4px; font-family: var(--dc-mono); font-size: .78rem;
  color: var(--dc-lime-deep); font-weight: 600;
}

/* -------------------------------------------------------------- calculator */
.lane-board {
  background: var(--dc-panel); border: 1px solid var(--dc-line-firm);
  border-radius: var(--dc-radius-lg); overflow: hidden;
}
.lane-boardhead {
  display: flex; align-items: center; gap: 8px;
  padding: 11px 18px; font-size: .84rem; font-weight: 600;
  color: var(--dc-slate-deep); background: var(--dc-panel);
  border-bottom: 1px solid var(--dc-line);
}
.lane-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--dc-lime);
  box-shadow: 0 0 0 3px var(--dc-lime-soft);
}
.lane-boardbody {
  display: grid; grid-template-columns: minmax(260px, 340px) 1fr;
}
.lane-fields { padding: 18px; border-right: 1px solid var(--dc-line); display: grid; gap: 14px; }
.lane-field { display: grid; gap: 5px; }
.lane-field label { font-size: .855rem; font-weight: 600; color: var(--dc-ink); }
.lane-hint { font-size: .775rem; color: var(--dc-ink-3); line-height: 1.45; }
.lane-input, .lane-select {
  width: 100%; font: inherit; font-size: .95rem; padding: 9px 11px;
  border: 1px solid var(--dc-line-firm); border-radius: var(--dc-radius);
  background: var(--dc-bg); color: var(--dc-ink);
  font-variant-numeric: tabular-nums;
}
.lane-input:focus, .lane-select:focus {
  outline: 2px solid var(--dc-slate); outline-offset: 1px; border-color: var(--dc-slate);
}
.lane-check { display: flex; align-items: flex-start; gap: 8px; }
.lane-check input { margin: 4px 0 0; width: 15px; height: 15px; accent-color: var(--dc-slate); }
.lane-check label { font-size: .885rem; color: var(--dc-ink); }

.lane-out { padding: 18px; display: grid; gap: 14px; align-content: start; }
.lane-outhero {
  background: var(--dc-slate); color: #fff; border-radius: var(--dc-radius);
  padding: 15px 17px; display: grid; gap: 3px;
}
.lane-outlabel { font-size: .78rem; text-transform: uppercase; letter-spacing: .07em; opacity: .78; }
.lane-outval {
  font-family: var(--dc-mono); font-size: 1.9rem; font-weight: 650;
  letter-spacing: -.02em; line-height: 1.15;
}
.lane-outsub { font-size: .82rem; opacity: .8; font-variant-numeric: tabular-nums; }

.lane-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.lane-rows { width: 100%; border-collapse: collapse; font-size: .89rem; }
.lane-rows caption {
  text-align: left; font-size: .77rem; color: var(--dc-ink-3);
  padding-bottom: 6px; text-transform: uppercase; letter-spacing: .05em;
}
.lane-rows th {
  text-align: left; font-weight: 520; color: var(--dc-ink-2);
  padding: 7px 0; border-bottom: 1px solid var(--dc-line);
}
.lane-rows td {
  text-align: right; padding: 7px 0; border-bottom: 1px solid var(--dc-line);
  font-family: var(--dc-mono); font-size: .86rem;
}
.lane-boardfoot { display: flex; justify-content: flex-end; }
.lane-btn {
  font: inherit; font-size: .845rem; font-weight: 600; cursor: pointer;
  padding: 7px 14px; border-radius: var(--dc-radius);
  border: 1px solid var(--dc-line-firm); background: var(--dc-panel); color: var(--dc-slate-deep);
}
.lane-btn:hover { background: var(--dc-slate-soft); }
.lane-caveat {
  margin: 0; padding: 12px 18px 14px; font-size: .795rem; line-height: 1.55;
  color: var(--dc-warn); background: var(--dc-warn-soft);
  border-top: 1px solid #f0e1c8;
}

/* ------------------------------------------------------------------ tables */
.lane-schedule {
  width: 100%; border-collapse: collapse; font-size: .885rem;
  background: var(--dc-panel); border: 1px solid var(--dc-line);
  border-radius: var(--dc-radius-lg);
}
.lane-schedule th, .lane-schedule td {
  padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--dc-line);
  vertical-align: top;
}
.lane-schedule thead th {
  font-size: .76rem; text-transform: uppercase; letter-spacing: .055em;
  color: var(--dc-ink-3); font-weight: 650; background: var(--dc-sunk);
  border-bottom: 1px solid var(--dc-line-firm); white-space: nowrap;
}
.lane-schedule tbody tr:last-child td { border-bottom: 0; }
.lane-code { font-family: var(--dc-mono); font-size: .84rem; white-space: nowrap; color: var(--dc-slate-deep); font-weight: 600; }
.lane-rate { font-family: var(--dc-mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.lane-flag {
  display: block; font-family: var(--dc-sans); font-size: .68rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .05em; color: var(--dc-ink-3); margin-top: 1px;
}
.lane-muted { color: var(--dc-ink-3); font-size: .845rem; }
.lane-yes { color: var(--dc-lime-deep); font-weight: 600; font-size: .845rem; }
.lane-fineprint { margin-top: 14px; font-size: .8rem; color: var(--dc-ink-3); line-height: 1.55; }

/* ------------------------------------------------------------------- prose */
.lane-prose { max-width: var(--dc-measure); }
.lane-prose--wide { max-width: 72ch; }
.lane-prose h2 { margin-top: 1.5em; }
.lane-prose h2:first-child { margin-top: 0; }
.lane-prose p { color: var(--dc-ink-2); }

/* --------------------------------------------------------------------- qa */
.lane-qa { display: grid; gap: 8px; max-width: 86ch; }
.lane-qa details {
  border: 1px solid var(--dc-line); border-radius: var(--dc-radius);
  background: var(--dc-bg); padding: 0;
}
.lane-qa summary {
  cursor: pointer; padding: 13px 16px; font-weight: 600; font-size: .95rem;
  color: var(--dc-ink); list-style: none;
}
.lane-qa summary::-webkit-details-marker { display: none; }
.lane-qa summary::after { content: "+"; float: right; color: var(--dc-ink-3); font-weight: 700; }
.lane-qa details[open] summary::after { content: "\2013"; }
.lane-ans { padding: 0 16px 14px; }
.lane-ans p { margin: 0; color: var(--dc-ink-2); font-size: .925rem; }

/* ----------------------------------------------------------------- related */
.lane-relgrid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.lane-rel {
  display: grid; gap: 3px; padding: 13px 15px; text-decoration: none;
  border: 1px solid var(--dc-line); border-radius: var(--dc-radius);
  background: var(--dc-panel); color: inherit;
}
.lane-rel:hover { border-color: var(--dc-line-firm); }
.lane-rel b { font-size: .93rem; color: var(--dc-slate-deep); }
.lane-rel span { font-size: .835rem; color: var(--dc-ink-2); line-height: 1.45; }

.lane-updated {
  font-size: .82rem; color: var(--dc-ink-3); padding: 20px 0 34px;
  border-top: 1px solid var(--dc-line); margin-top: 30px;
}

/* ------------------------------------------------------------------ footer */
.lane-foot { background: var(--dc-slate-deep); color: #cfdae0; padding: 40px 0 26px; margin-top: 0; }
.lane-footgrid {
  display: grid; gap: 30px;
  grid-template-columns: 1.4fr 1fr 1fr;
}
.lane-foot h3 { color: #fff; font-size: .95rem; margin-bottom: 10px; }
.lane-foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.lane-foot a { color: #cfdae0; text-decoration: none; font-size: .875rem; }
.lane-foot a:hover { color: var(--dc-lime); text-decoration: underline; }
.lane-footnote { color: #a9bac3; font-size: .875rem; margin: 0 0 8px; }
.lane-footsmall { color: #8fa3ae; font-size: .8rem; margin: 0; line-height: 1.5; }
.lane-footlegal { border-top: 1px solid #34495a; margin-top: 28px; padding-top: 18px; }
.lane-footlegal p { color: #8fa3ae; font-size: .8rem; line-height: 1.6; margin: 0 0 8px; }
.lane-footlegal strong { color: #b7c7d0; }

/* ------------------------------------------------------------ responsive */
@media (max-width: 880px) {
  .lane-boardbody { grid-template-columns: 1fr; }
  .lane-fields { border-right: 0; border-bottom: 1px solid var(--dc-line); }
  .lane-footgrid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .lane-header .lane-wrap { min-height: 56px; }
  .lane-toggle { display: block; }
  .lane-menu {
    display: none; margin: 0; width: 100%; order: 3;
    padding-bottom: 12px;
  }
  .lane-menu-list { flex-direction: column; gap: 2px; }
  .lane-menu-list a { padding: 10px 12px; }
  .js .lane-menu.is-open { display: block; }
  .lane-hero { padding: 28px 0 24px; }
  .lane-band { padding: 32px 0; }
  .lane-footgrid { grid-template-columns: 1fr; gap: 24px; }
  .lane-outval { font-size: 1.6rem; }
  .lane-schedule { font-size: .84rem; }
  .lane-schedule th, .lane-schedule td { padding: 8px 9px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .lane-card { transition: none; }
}