/* FairLane Router landing — a motorway at night with a live lane-price gantry.
   Pure black is the logo's own field, so the mark sits on it without a seam.
   Amber means a live reading and nothing else; red means overpay and nothing else. */

:root {
  --road: #000000;
  --asphalt: #101113;
  --marking: #f4f4f0;
  --text: #c9cbcf;
  --muted: #8a8e95;
  --rule: #2a2c30;
  --amber: #ffb020;
  --overpay: #e0605a;
  --dash: rgba(244, 244, 240, 0.3);
  --wrap: 1200px;
  --gutter: 24px;
  --lane-pad: 28px;
  --section-gap: 160px;
  --display: "Barlow Condensed", "Arial Narrow", "Roboto Condensed", "Segoe UI", sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
  --sans: ui-sans-serif, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color-scheme: dark;
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  background: var(--road);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--marking);
  text-underline-offset: 3px;
}

a:hover {
  color: var(--amber);
}

a:focus-visible,
.button:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

h1,
h2,
h3,
p,
ol,
ul,
dl,
dd,
figure {
  margin: 0;
}

ol,
ul {
  padding: 0;
  list-style: none;
}

.display {
  font-family: var(--display);
  font-weight: 700;
  color: var(--marking);
  letter-spacing: 0.005em;
}

.mono,
code {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.amber {
  color: var(--amber);
}

.wrap {
  width: min(var(--wrap), 100% - 2 * var(--gutter));
  margin-inline: auto;
}

/* Lane markings: 24px dash, 16px gap, as on the road. */
.dashed-left {
  background-image: repeating-linear-gradient(to bottom, var(--dash) 0 24px, transparent 24px 40px);
  background-size: 2px 100%;
  background-repeat: no-repeat;
}

.dashed-top {
  background-image: repeating-linear-gradient(to right, var(--dash) 0 24px, transparent 24px 40px);
  background-size: 100% 2px;
  background-repeat: no-repeat;
}

/* Four-lane grid: every section below the hero snaps to it. */
.lanes-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.lanes-4 > .cell {
  padding-inline: var(--lane-pad);
  background-image: repeating-linear-gradient(to bottom, var(--dash) 0 24px, transparent 24px 40px);
  background-size: 2px 100%;
  background-repeat: no-repeat;
}

.lanes-4 > .cell:last-child {
  padding-right: 0;
}

.lanes-4 > :first-child:not(.cell) {
  padding-right: 32px;
}

.lanes-4 > .cell:first-child {
  padding-left: 0;
  background-image: none;
}

.span-3 {
  grid-column: 2 / span 3;
}

/* Nav */

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding-block: 32px;
}

.brand {
  font-size: 26px;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 32px;
  font-size: 14px;
}

/* Hero */

.hero {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding-block: 56px 64px;
}

.hero-copy {
  grid-column: 1 / span 3;
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-right: 48px;
}

.eyebrow {
  font-size: 14px;
  color: var(--muted);
}

.hero h1 {
  font-size: clamp(40px, 5.6vw, 80px);
  line-height: 0.98;
  text-wrap: balance;
}

.lede {
  max-width: 680px;
  font-size: 20px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  align-items: center;
  margin-top: 8px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 52px;
  padding: 0 28px;
  background: var(--marking);
  color: var(--road);
  font-size: 24px;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.button:hover {
  background: var(--amber);
  color: var(--road);
}

.install {
  font-size: 15px;
  color: var(--marking);
  padding: 14px 18px;
  background: var(--asphalt);
  user-select: all;
}

.hero-mark {
  display: flex;
  justify-content: center;
  align-items: flex-end;
}

.hero-mark img {
  width: 260px;
}

/* Gantry */

.beam {
  height: 14px;
  background: var(--rule);
}

.gantry {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: var(--asphalt);
  border-bottom: 1px solid var(--rule);
  min-height: 236px;
}

.lane {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px 24px 28px;
}

.lane + .lane,
.road span + span {
  background-image: repeating-linear-gradient(to bottom, var(--dash) 0 24px, transparent 24px 40px);
  background-size: 2px 100%;
  background-repeat: no-repeat;
}

.lane-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.lane-name {
  font-size: 30px;
  letter-spacing: 0.06em;
}

.lane-meta {
  font-size: 12px;
  color: var(--muted);
  text-align: right;
}

.reading {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.reading .label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.reading .value {
  line-height: 1.1;
}

.value.amber {
  color: var(--amber);
}

.value.big {
  font-size: 36px;
}

.value.big small {
  font-size: 14px;
}

.value.overpay {
  font-size: 24px;
  color: var(--overpay);
}

.closed {
  flex-grow: 1;
  display: flex;
  align-items: center;
  border: 1px solid var(--rule);
  padding: 16px;
  font-size: 20px;
  line-height: 1.15;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.road {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  height: 120px;
}

.caption {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 8px;
  font-size: 13px;
  color: var(--muted);
}

.caption a {
  color: var(--muted);
}

/* Sections */

.section {
  padding-top: var(--section-gap);
}

.section > h2,
.lanes-4 > h2 {
  font-size: 44px;
  line-height: 1.02;
}

.section > h2 {
  margin-bottom: 48px;
}

.cell h3 {
  font-size: 28px;
  line-height: 1.1;
}

.cell > * + * {
  margin-top: 14px;
}

.figure {
  font-size: 40px;
  line-height: 1;
  color: var(--marking);
}

.steps {
  padding-top: 40px;
}

.step-no {
  display: block;
  font-size: 64px;
  line-height: 1;
  color: var(--rule);
}

/* Measured */

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

.measured {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.measured th,
.measured td {
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  text-align: right;
  vertical-align: baseline;
}

.measured thead th {
  padding-top: 0;
  padding-bottom: 12px;
  font-weight: 400;
  color: var(--muted);
}

.measured thead th:first-child,
.measured tbody th {
  text-align: left;
}

.measured tbody th {
  padding-right: 16px;
  font-family: var(--sans);
  font-weight: 400;
}

.measured td + td,
.measured th + th {
  padding-left: 16px;
}

.measured td {
  white-space: nowrap;
}

.measured .value {
  color: var(--marking);
}

.measured .date {
  color: var(--muted);
}

.note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--muted);
}

.shot {
  margin-top: 48px;
}

.shot img {
  width: 100%;
  border: 1px solid var(--rule);
}

.shot figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
}

/* Limits */

.limits {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.limits li {
  padding: 28px 40px 28px 0;
  background-image: repeating-linear-gradient(to right, var(--dash) 0 24px, transparent 24px 40px);
  background-size: 100% 2px;
  background-repeat: no-repeat;
}

.limits li:nth-child(even) {
  padding: 28px 0 28px 40px;
  background-image:
    repeating-linear-gradient(to right, var(--dash) 0 24px, transparent 24px 40px),
    repeating-linear-gradient(to bottom, var(--dash) 0 24px, transparent 24px 40px);
  background-size: 100% 2px, 2px 100%;
}

.limits strong {
  color: var(--marking);
}

/* FAQ */

.faq > div {
  padding-block: 28px;
}

.faq dt {
  font-size: 26px;
  line-height: 1.1;
  padding-right: 28px;
}

/* Footer */

.footer {
  margin-top: var(--section-gap);
  padding-block: 40px 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 22px;
  letter-spacing: 0.02em;
}

.footer-brand img {
  width: 48px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  font-size: 14px;
}

/* Narrow screens: the lanes stack into rows and the markings turn horizontal. */

@media (max-width: 900px) {
  :root {
    --section-gap: 104px;
  }

  .nav-links {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 24px;
  }

  .hero-copy {
    grid-column: 1;
    padding-right: 0;
  }

  .hero-mark {
    display: none;
  }

  .lede {
    font-size: 18px;
  }

  .gantry,
  .lanes-4,
  .limits {
    grid-template-columns: 1fr;
  }

  .lane + .lane,
  .lanes-4 > .cell,
  .limits li,
  .limits li:nth-child(even) {
    background-image: repeating-linear-gradient(to right, var(--dash) 0 24px, transparent 24px 40px);
    background-size: 100% 2px;
    background-repeat: no-repeat;
  }

  .lanes-4 > .cell,
  .limits li,
  .limits li:nth-child(even) {
    padding: 28px 0;
  }

  .lanes-4 > h2 {
    margin-bottom: 20px;
  }

  .lanes-4 > .cell:first-child {
    background-image: none;
    padding-top: 0;
  }

  .span-3 {
    grid-column: 1;
  }

  .road {
    height: 48px;
  }

  .section > h2,
  .lanes-4 > h2 {
    font-size: 34px;
  }

  .faq dt {
    padding-right: 0;
    margin-bottom: 12px;
  }

  /* The dates stay one link away, in the release notes under the table. */
  .measured .date,
  .measured thead th:last-child {
    display: none;
  }

  .faq dd.cell {
    padding: 0;
    background-image: none;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}