:root {
  --ink: #132322;
  --muted: #5a6a66;
  --paper: #fffdf7;
  --white: #ffffff;
  --soft: #edf7f1;
  --mist: #d8eeee;
  --deep: #073337;
  --bay: #0b6470;
  --teal: #008b91;
  --leaf: #4d8164;
  --sun: #d99b2b;
  --sand: #f0cf85;
  --coral: #d96b53;
  --violet: #5f5ec9;
  --line: rgba(19, 35, 34, .16);
  --shadow: 0 24px 60px rgba(7, 51, 55, .17);
  --radius: 8px;
  --max: 1180px;
  --heading: "Nunito Sans", "Avenir Next", Arial, sans-serif;
  --body: "Atkinson Hyperlegible", "Segoe UI", Arial, sans-serif;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 18px;
  line-height: 1.62;
  margin: 0;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1,
h2,
h3,
.brand-text strong,
.nav-link,
.nav-group summary,
.button,
.section-label,
.mini-label,
.sequence-nav strong {
  font-family: var(--heading);
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2.65rem, 5.2vw, 5.45rem);
  font-weight: 900;
  line-height: .94;
  max-width: 13ch;
  overflow-wrap: normal;
  text-transform: uppercase;
}

h2 {
  font-size: clamp(2rem, 4.5vw, 3.45rem);
  font-weight: 900;
  line-height: 1.02;
}

h3 {
  font-size: 1.35rem;
  font-weight: 900;
  line-height: 1.14;
}

.skip-link {
  background: var(--sun);
  border-radius: var(--radius);
  color: var(--ink);
  left: 1rem;
  padding: .7rem 1rem;
  position: absolute;
  text-decoration: none;
  top: -5rem;
  z-index: 60;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  background: rgba(255, 253, 247, .93);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 40;
}

.nav {
  align-items: center;
  display: flex;
  gap: .7rem;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max);
  min-height: 76px;
  padding: 0 .9rem;
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: .8rem;
  min-width: 205px;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: linear-gradient(135deg, var(--deep), var(--bay));
  border-radius: 50%;
  box-shadow: 0 12px 28px rgba(7, 51, 55, .22);
  color: var(--sand);
  display: inline-flex;
  font-family: var(--heading);
  font-size: .76rem;
  font-weight: 900;
  height: 44px;
  justify-content: center;
  letter-spacing: 0;
  width: 44px;
}

.brand-text {
  display: grid;
}

.brand-text strong {
  color: var(--deep);
  font-size: .98rem;
  font-weight: 900;
  text-transform: uppercase;
}

.brand-text span {
  color: var(--muted);
  font-size: .78rem;
}

.nav-links {
  align-items: center;
  display: flex;
  flex-wrap: nowrap;
  gap: .28rem;
  justify-content: flex-end;
}

.nav-link,
.nav-group summary {
  align-items: center;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--muted);
  cursor: pointer;
  display: inline-flex;
  font-size: .62rem;
  font-weight: 900;
  min-height: 40px;
  padding: .46rem .38rem;
  text-decoration: none;
  text-transform: uppercase;
}

.nav-link:hover,
.nav-link:focus,
.nav-link[aria-current="page"],
.nav-group summary:hover,
.nav-group summary:focus,
.nav-group.is-current summary,
.nav-group[open] summary {
  background: var(--soft);
  border-color: var(--line);
  color: var(--bay);
}

.nav-group {
  position: relative;
}

.nav-group summary {
  list-style: none;
}

.nav-group summary::-webkit-details-marker {
  display: none;
}

.nav-group summary::after {
  border: solid currentColor;
  border-width: 0 2px 2px 0;
  content: "";
  height: .34rem;
  margin-left: .45rem;
  transform: translateY(-.12rem) rotate(45deg);
  width: .34rem;
}

.nav-menu {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: grid;
  gap: .12rem;
  min-width: 244px;
  padding: .45rem;
  position: absolute;
  right: 0;
  top: calc(100% + .55rem);
  z-index: 45;
}

.nav-menu .nav-link {
  justify-content: flex-start;
  padding: .66rem .75rem;
  white-space: nowrap;
}

.nav-toggle {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  display: none;
  font-family: var(--heading);
  font-size: .8rem;
  font-weight: 900;
  min-height: 42px;
  padding: .6rem .8rem;
  text-transform: uppercase;
}

.hero,
.page-hero {
  align-items: center;
  background-image:
    linear-gradient(90deg, rgba(7, 51, 55, .96) 0%, rgba(7, 51, 55, .78) 38%, rgba(7, 51, 55, .26) 64%, rgba(7, 51, 55, 0) 100%),
    var(--page-hero-image);
  background-position: center;
  background-size: cover;
  border-bottom: 1px solid var(--line);
  color: var(--white);
  display: flex;
  min-height: min(690px, calc(100vh - 132px));
  padding: clamp(2.8rem, 5vw, 4.8rem) 1.25rem;
}

.page-hero {
  min-height: min(560px, 62vh);
}

.hero-body,
.section-inner,
.page-hero-inner {
  margin: 0 auto;
  max-width: var(--max);
  width: 100%;
}

.section-inner.readable {
  max-width: 880px;
}

.hero-copy {
  max-width: 760px;
}

.page-hero-inner h1,
.page-hero .lede {
  max-width: 790px;
}

.hero-lede,
.lede {
  font-size: clamp(1.08rem, 1.8vw, 1.35rem);
  line-height: 1.5;
}

.hero-lede {
  color: rgba(255, 255, 255, .94);
  margin-top: 1.25rem;
  max-width: 710px;
}

.page-hero .lede {
  color: rgba(255, 255, 255, .9);
  margin-top: 1.2rem;
  max-width: 790px;
}

.micro-note {
  color: rgba(255, 255, 255, .8);
  font-size: .95rem;
  margin-top: 1rem;
}

.button-row,
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 1.7rem;
}

.button {
  align-items: center;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  cursor: pointer;
  display: inline-flex;
  font-size: .82rem;
  font-weight: 900;
  justify-content: center;
  min-height: 48px;
  padding: .78rem 1rem;
  text-decoration: none;
  text-transform: uppercase;
}

.button.primary {
  background: linear-gradient(135deg, #dfa23a, var(--sand));
  border-color: #ffe4a0;
  color: #142321;
}

.button.secondary {
  background: rgba(255, 255, 255, .08);
  color: var(--white);
}

.button.ghost {
  background: var(--white);
  color: var(--bay);
}

.section {
  padding: clamp(3.5rem, 8vw, 6rem) 1.25rem;
}

.hero + .section {
  padding-top: clamp(1.5rem, 3.2vw, 2.4rem);
}

.section-heading {
  display: grid;
  gap: .75rem;
  margin-bottom: 1.5rem;
  max-width: 880px;
}

.section-heading.centred {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-label,
.mini-label {
  color: var(--bay);
  font-size: .78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.hero-label {
  color: var(--sand);
  margin-bottom: 1rem;
}

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

.soft-band {
  background: var(--soft);
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
}

.mist-band {
  background: var(--mist);
}

.deep-band {
  background: linear-gradient(135deg, var(--deep), #0d5968);
  color: var(--white);
}

.deep-band .section-label,
.deep-band .mini-label {
  color: var(--sand);
}

.deep-band .muted,
.deep-band .lede,
.deep-band .card p,
.deep-band .repo-card p {
  color: rgba(255, 255, 255, .78);
}

.card-grid,
.trail-grid,
.repo-grid,
.source-grid,
.builder-index,
.option-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.card,
.trail-card,
.repo-card,
.question-card,
.source-card,
.builder-index a,
.builder-panel,
.quote-panel,
.info-panel,
.option-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(7, 51, 55, .07);
}

.card,
.trail-card,
.repo-card,
.question-card,
.source-card,
.builder-index a,
.option-card {
  color: var(--ink);
  display: grid;
  gap: .75rem;
  min-height: 100%;
  padding: 1.25rem;
  text-decoration: none;
}

.trail-card {
  border-left: 6px solid var(--teal);
}

.trail-card:nth-child(2n) {
  border-left-color: var(--leaf);
}

.trail-card:nth-child(3n) {
  border-left-color: var(--sun);
}

.option-card {
  border-top: 6px solid var(--teal);
}

.option-card:nth-child(2n) {
  border-top-color: var(--coral);
}

.option-card:nth-child(3n) {
  border-top-color: var(--leaf);
}

.option-card:nth-child(4n) {
  border-top-color: var(--violet);
}

.card p,
.trail-card p,
.repo-card p,
.question-card p,
.source-card p,
.builder-index p,
.option-card p {
  color: var(--muted);
}

.deep-band .card p,
.deep-band .trail-card p,
.deep-band .repo-card p,
.deep-band .question-card p,
.deep-band .source-card p,
.deep-band .builder-index p,
.deep-band .option-card p {
  color: var(--muted);
}

.deep-band .card .mini-label,
.deep-band .trail-card .mini-label,
.deep-band .repo-card .mini-label,
.deep-band .question-card .mini-label,
.deep-band .source-card .mini-label,
.deep-band .builder-index .mini-label,
.deep-band .option-card .mini-label {
  color: var(--bay);
}

.text-link {
  color: var(--bay);
  font-family: var(--heading);
  font-size: .85rem;
  font-weight: 900;
  text-transform: uppercase;
}

.repo-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: .7rem 1.45rem;
}

.split {
  align-items: center;
  display: grid;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  grid-template-columns: minmax(0, 1fr) minmax(300px, .8fr);
}

.visual-panel {
  background: linear-gradient(135deg, var(--mist), var(--paper));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

.visual-panel img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
}

.quote-panel {
  background: linear-gradient(135deg, #fff, var(--soft));
  color: var(--deep);
  font-size: clamp(1.12rem, 2vw, 1.55rem);
  font-weight: 700;
  line-height: 1.42;
  padding: 1.4rem;
}

.info-panel {
  display: grid;
  gap: .8rem;
  margin-top: 1.4rem;
  padding: 1.25rem;
}

.question-list {
  display: grid;
  gap: .85rem;
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
}

.question-list li {
  background: rgba(255, 255, 255, .78);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .95rem 1rem;
}

.pathway {
  counter-reset: path;
  display: grid;
  gap: .85rem;
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
}

.pathway li {
  align-items: start;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  gap: .75rem;
  grid-template-columns: auto 1fr;
  padding: 1rem;
}

.pathway li::before {
  background: var(--deep);
  border-radius: 50%;
  color: var(--sand);
  content: counter(path, decimal-leading-zero);
  counter-increment: path;
  display: grid;
  font-family: var(--heading);
  font-size: .72rem;
  font-weight: 900;
  height: 2rem;
  place-items: center;
  width: 2rem;
}

.callout {
  background: linear-gradient(135deg, var(--deep), #0d5968);
  border-radius: var(--radius);
  color: var(--white);
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr auto;
  margin-top: 2rem;
  padding: 1.4rem;
}

.callout p {
  color: rgba(255, 255, 255, .82);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.1rem;
}

.tag {
  background: rgba(0, 139, 145, .1);
  border: 1px solid rgba(0, 139, 145, .28);
  border-radius: var(--radius);
  color: var(--deep);
  font-family: var(--heading);
  font-size: .82rem;
  font-weight: 900;
  padding: .36rem .52rem;
}

.tag[href] {
  text-decoration: none;
}

.reef-calculator {
  display: grid;
  gap: 1.2rem;
}

.calc-workbench {
  align-items: start;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(360px, .9fr) minmax(520px, 1.1fr);
}

.calc-controls,
.calc-results,
.calc-panels,
.calc-choice-grid,
.block-estimate-grid {
  display: grid;
  gap: 1rem;
}

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

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

.calc-choice-grid {
  align-items: start;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.calc-panels {
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
}

.block-estimate-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.range-field,
.calc-metric,
.calc-panel,
.sandworm-bridge {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(7, 51, 55, .07);
}

.range-field,
.calc-metric,
.calc-panel,
.sandworm-bridge {
  padding: 1rem;
}

.calc-config-panel,
.calc-live-panel {
  align-content: start;
}

.calc-config-panel .range-field,
.calc-live-panel .calc-metric {
  background: var(--paper);
  box-shadow: none;
  padding: .8rem;
}

.calc-more-numbers {
  border-top: 1px solid var(--line);
  padding-top: .2rem;
}

.calc-more-numbers summary {
  color: var(--bay);
  cursor: pointer;
  font-family: var(--heading);
  font-size: .9rem;
  font-weight: 900;
}

.calc-more-numbers .calc-results {
  margin-top: .65rem;
}

.calc-config-panel .scale-field {
  grid-column: 1 / -1;
}

.range-field {
  align-content: start;
  align-self: start;
  display: grid;
  gap: .7rem;
}

.range-field label,
.calc-metric span {
  color: var(--deep);
  font-family: var(--heading);
  font-size: .9rem;
  font-weight: 900;
}

.range-field output {
  color: var(--bay);
  display: block;
  font-size: .98rem;
  margin-top: .2rem;
}

.range-note {
  color: var(--muted);
  font-size: .86rem;
  line-height: 1.45;
  margin: -.15rem 0 0;
}

.range-field input[type="range"] {
  accent-color: var(--bay);
  min-height: 34px;
  padding: 0;
}

.range-field input[type="number"],
.range-field select {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) - 2px);
  color: var(--deep);
  font: 800 clamp(.88rem, 1.1vw, 1rem)/1.2 var(--body);
  min-height: 44px;
  padding: .58rem .68rem;
  width: 100%;
}

.range-field select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--bay) 50%),
    linear-gradient(135deg, var(--bay) 50%, transparent 50%);
  background-position:
    calc(100% - 1.38rem) 50%,
    calc(100% - 1.02rem) 50%;
  background-repeat: no-repeat;
  background-size: .38rem .38rem, .38rem .38rem;
  padding-right: 4rem;
  text-overflow: ellipsis;
}

.segmented-control {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) - 2px);
  display: grid;
  gap: .25rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: .25rem;
}

.segmented-control label {
  margin: 0;
}

.segmented-control input {
  height: 1px;
  opacity: 0;
  pointer-events: none;
  position: absolute;
  width: 1px;
}

.segmented-control span {
  align-items: center;
  border-radius: .42rem;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  font-family: var(--heading);
  font-size: .88rem;
  font-weight: 900;
  justify-content: center;
  min-height: 2.35rem;
  padding: .45rem .35rem;
  text-align: center;
}

.segmented-control input:checked + span {
  background: var(--bay);
  color: var(--white);
}

.segmented-control input:focus-visible + span {
  outline: 3px solid rgba(232, 176, 66, .55);
  outline-offset: 2px;
}

.calc-metric {
  display: grid;
  gap: .35rem;
}

.calc-metric p {
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.5;
  margin: 0;
}

.calc-metric strong {
  color: var(--bay);
  font-family: var(--heading);
  font-size: clamp(1.15rem, 1.6vw, 1.55rem);
  line-height: 1.05;
}

.calc-panel {
  display: grid;
  gap: .85rem;
}

.calc-panel h3 {
  margin-bottom: 0;
}

details.calc-panel > summary {
  align-items: center;
  cursor: pointer;
  display: flex;
  gap: .75rem;
  justify-content: space-between;
  list-style: none;
}

details.calc-panel > summary::-webkit-details-marker {
  display: none;
}

details.calc-panel > summary::after {
  color: var(--bay);
  content: "+";
  font-family: var(--heading);
  font-size: 1.35rem;
  font-weight: 900;
}

details.calc-panel[open] > summary::after {
  content: "-";
}

details.calc-panel > summary span {
  color: var(--bay);
  font-family: var(--heading);
  font-size: .82rem;
  font-weight: 900;
  letter-spacing: .03em;
  text-transform: uppercase;
}

details.calc-panel > summary strong {
  color: var(--deep);
  display: block;
  font-family: var(--heading);
  font-size: clamp(1rem, 1.4vw, 1.25rem);
}

.detail-panel-body {
  display: grid;
  gap: .85rem;
  padding-top: .85rem;
}

.detail-panel-body p {
  margin: 0;
}

.focus-measure-grid {
  display: grid;
  gap: .65rem;
}

.focus-measure-grid div {
  background: rgba(0, 95, 108, .06);
  border: 1px solid rgba(0, 95, 108, .14);
  border-radius: calc(var(--radius) - 2px);
  display: grid;
  gap: .2rem;
  padding: .7rem;
}

.focus-measure-grid span,
.focus-measure-grid em {
  color: var(--muted);
  font-size: .82rem;
  font-style: normal;
}

.focus-measure-grid strong {
  color: var(--bay);
  font-family: var(--heading);
  font-size: 1rem;
}

.focus-measure-grid p {
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.45;
  margin: 0;
}

.timeline-bars {
  display: grid;
  gap: .55rem;
}

.timeline-row {
  align-items: center;
  display: grid;
  gap: .55rem;
  grid-template-columns: 72px 1fr auto;
}

.timeline-row span,
.timeline-row em,
.calc-note,
.work-map p,
.sandworm-bridge p {
  color: var(--muted);
}

.timeline-row span,
.timeline-row em {
  font-size: .82rem;
  font-style: normal;
}

.timeline-row b {
  background: linear-gradient(90deg, var(--bay), var(--leaf));
  border-radius: 999px;
  display: block;
  height: .7rem;
  min-width: .7rem;
}

.work-map {
  display: grid;
  gap: .85rem;
}

.work-map strong {
  color: var(--deep);
  display: block;
  font-family: var(--heading);
  margin-bottom: .2rem;
}

.block-estimate-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) - 2px);
  display: grid;
  gap: .45rem;
  padding: .9rem;
}

.selected-example-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) - 2px);
  display: grid;
  gap: .8rem;
  padding: .9rem;
}

.selected-example-card h4,
.selected-example-card p {
  margin: 0;
}

.selected-example-card h4 {
  color: var(--deep);
  font-family: var(--heading);
  font-size: clamp(1.1rem, 1.7vw, 1.45rem);
  line-height: 1.1;
}

.selected-example-card strong {
  color: var(--bay);
  display: block;
  font-family: var(--heading);
  font-size: 1.15rem;
  margin-top: .35rem;
}

.component-schedule {
  display: grid;
  gap: .4rem;
  grid-template-columns: 1fr;
}

.component-schedule div {
  align-items: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: .55rem;
  display: grid;
  gap: .5rem;
  grid-template-columns: minmax(130px, 1fr) minmax(130px, auto) minmax(72px, auto);
  padding: .55rem .65rem;
}

.component-schedule span {
  color: var(--deep);
  font-family: var(--heading);
  font-size: .9rem;
  font-weight: 900;
}

.component-schedule em {
  color: var(--muted);
  font-size: .82rem;
  font-style: normal;
  text-align: right;
}

.component-formula-details summary {
  color: var(--bay);
  cursor: pointer;
  font-family: var(--heading);
  font-size: .86rem;
  font-weight: 900;
}

.component-formula-list {
  display: grid;
  gap: .45rem;
  margin-top: .6rem;
}

.component-formula-list code {
  background: rgba(0, 95, 108, .06);
  border: 1px solid rgba(0, 95, 108, .14);
  border-radius: .4rem;
  color: var(--bay);
  display: block;
  font-family: Consolas, "Courier New", monospace;
  font-size: .78rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
  padding: .4rem .5rem;
}

.block-estimate-card h4,
.block-estimate-card p,
.block-estimate-card em,
.block-estimate-card code {
  margin: 0;
}

.block-estimate-card h4 {
  color: var(--deep);
  font-family: var(--heading);
  font-size: 1rem;
  line-height: 1.15;
}

.block-estimate-card strong {
  color: var(--bay);
  font-family: var(--heading);
  font-size: 1.2rem;
}

.block-estimate-card p,
.block-estimate-card em {
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.45;
}

.block-estimate-card code {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: .45rem;
  color: var(--bay);
  font-family: Consolas, "Courier New", monospace;
  font-size: .82rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
  padding: .45rem .55rem;
}

.component-split {
  border-left: 3px solid rgba(0, 99, 115, .28);
  padding-left: .75rem;
}

.component-split summary {
  color: var(--bay);
  cursor: pointer;
  font-family: var(--heading);
  font-size: .86rem;
  font-weight: 900;
}

.component-split ul {
  display: grid;
  gap: .55rem;
  list-style: none;
  margin: .65rem 0 0;
  padding: 0;
}

.component-split li {
  color: var(--muted);
  display: grid;
  gap: .25rem;
}

.component-split code {
  display: block;
}

.block-estimate-card em {
  font-style: normal;
}

.block-estimate-card.compact {
  box-shadow: none;
}

.block-estimate-card.compact h4 {
  font-size: .92rem;
}

.block-estimate-card.compact strong {
  font-size: 1rem;
}

.block-estimate-card.compact.is-current {
  border-color: rgba(0, 95, 108, .45);
  box-shadow: inset 0 0 0 2px rgba(0, 95, 108, .1);
}

.calc-export-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.calc-export-actions span {
  color: var(--muted);
  font-size: .92rem;
}

.markdown-preview {
  border-top: 1px solid var(--line);
  padding-top: .75rem;
}

.markdown-preview summary {
  color: var(--bay);
  cursor: pointer;
  font-family: var(--heading);
  font-weight: 900;
}

.markdown-preview textarea {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) - 2px);
  color: var(--deep);
  font-family: Consolas, "Courier New", monospace;
  font-size: .86rem;
  line-height: 1.45;
  margin-top: .75rem;
  min-height: 320px;
  padding: .8rem;
  width: 100%;
}

.sandworm-bridge {
  display: grid;
  gap: .75rem;
}

.source-card code {
  color: var(--bay);
  font-size: .88rem;
  overflow-wrap: anywhere;
}

.sequence-nav {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0 auto;
  max-width: var(--max);
  padding: 0 1.25rem clamp(3rem, 7vw, 5rem);
}

.sequence-nav a {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  gap: .25rem;
  min-height: 96px;
  padding: 1.1rem;
  text-decoration: none;
}

.sequence-nav a:last-child {
  text-align: right;
}

.sequence-nav span {
  color: var(--muted);
  font-size: .8rem;
}

.sequence-nav strong {
  color: var(--bay);
  font-size: 1.18rem;
}

.site-footer {
  background: var(--deep);
  color: var(--white);
  padding: 2.5rem 1.25rem;
}

.site-footer-inner {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1fr) auto;
  margin: 0 auto;
  max-width: var(--max);
}

.site-footer p {
  color: rgba(255, 255, 255, .75);
  margin-top: .35rem;
  max-width: 650px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1rem;
  justify-content: flex-end;
  max-width: 560px;
}

.footer-links a {
  color: var(--sand);
  font-family: var(--heading);
  font-size: .86rem;
  font-weight: 900;
}

.back-to-top {
  align-items: center;
  background: var(--deep);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 50%;
  bottom: 1rem;
  box-shadow: var(--shadow);
  color: var(--white);
  cursor: pointer;
  display: flex;
  font-family: var(--heading);
  font-size: 1.1rem;
  font-weight: 900;
  height: 48px;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  position: fixed;
  right: 1rem;
  transform: translateY(12px);
  transition: opacity .2s ease, transform .2s ease;
  width: 48px;
  z-index: 50;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.builder-layout {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(0, .95fr) minmax(320px, 1.05fr);
}

.builder-panel {
  padding: 1.25rem;
}

.builder-form {
  display: grid;
  gap: 1rem;
}

.field {
  display: grid;
  gap: .45rem;
}

.field label {
  font-family: var(--heading);
  font-weight: 900;
}

.field span,
.status-line {
  color: var(--muted);
  font-size: .92rem;
}

input,
textarea,
select {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font: inherit;
  min-height: 46px;
  padding: .7rem .8rem;
  width: 100%;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.markdown-output {
  font-family: Consolas, "Courier New", monospace;
  min-height: 560px;
  overflow-wrap: break-word;
  white-space: pre-wrap;
}

@media (max-width: 940px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    align-items: stretch;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    display: none;
    gap: .35rem;
    grid-template-columns: 1fr;
    inset: 76px 0 auto 0;
    justify-content: stretch;
    max-height: calc(100vh - 76px);
    overflow: auto;
    padding: 1rem;
    position: fixed;
  }

  body.nav-open .nav-links {
    display: grid;
  }

  .nav-link,
  .nav-group summary {
    justify-content: space-between;
    padding: .85rem;
    width: 100%;
  }

  .nav-group {
    width: 100%;
  }

  .nav-menu {
    background: transparent;
    border: 0;
    border-left: 3px solid var(--mist);
    border-radius: 0;
    box-shadow: none;
    margin: .15rem 0 .45rem .75rem;
    min-width: 0;
    padding: .2rem 0 .2rem .55rem;
    position: static;
  }

  .nav-menu .nav-link {
    white-space: normal;
  }

  .card-grid,
  .trail-grid,
  .repo-grid,
  .source-grid,
  .builder-index,
  .option-grid,
  .calc-workbench,
  .calc-controls,
  .calc-results,
  .calc-panels,
  .calc-choice-grid,
  .block-estimate-grid,
  .two-grid,
  .split,
  .builder-layout,
  .site-footer-inner {
    grid-template-columns: 1fr;
  }

  .site-footer-inner,
  .footer-links {
    justify-content: start;
  }

  .callout {
    grid-template-columns: 1fr;
  }

  .component-schedule {
    grid-template-columns: 1fr;
  }

  .component-schedule div {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .component-schedule em {
    text-align: left;
  }
}

@media (max-width: 620px) {
  body {
    font-size: 16px;
  }

  .brand {
    min-width: 0;
  }

  .brand-text span {
    display: none;
  }

  .hero {
    min-height: 74vh;
    padding-top: 4.5rem;
  }

  h1 {
    font-size: clamp(2.05rem, 10vw, 2.55rem);
    max-width: 100%;
    overflow-wrap: normal;
  }

  .sequence-nav {
    grid-template-columns: 1fr;
  }

  .sequence-nav a:last-child {
    text-align: left;
  }

  .timeline-row {
    grid-template-columns: 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}