:root {
  --paper: #f1ede3;
  --paper-2: #e8e2d4;
  --ink: #171410;
  --ink-soft: #4e483d;
  --accent: #d93a1e;
  --accent-deep: #a92610;
  --line: rgba(23, 20, 16, 0.16);
  --line-strong: rgba(23, 20, 16, 0.34);
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Archivo", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "Azeret Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --max: 1220px;
  --pad: 28px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.mono { font-family: var(--mono); }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
}

a { color: inherit; }

::selection {
  background: var(--accent);
  color: var(--paper);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 14px;
  z-index: 100;
  font-family: var(--mono);
  font-size: 13px;
}
.skip:focus { left: 12px; }

.dot { color: var(--accent); }

/* ---------- Masthead ---------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 2px solid var(--ink);
}

.mast-in {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 62px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.mark {
  width: 20px;
  height: 20px;
  flex: none;
}

.brand-name { font-size: 15px; }

.mast-meta {
  margin: 0 0 0 auto;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.mast-link {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.mast-link:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- Cover ---------- */

.cover {
  position: relative;
  overflow: hidden;
}

#contour {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  -webkit-mask-image: linear-gradient(to bottom, #000 58%, transparent 98%);
  mask-image: linear-gradient(to bottom, #000 58%, transparent 98%);
  pointer-events: none;
}

.cover-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) 300px;
  gap: 72px;
  padding: 104px 0 64px;
}

.kicker {
  margin: 0 0 24px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 650;
  font-size: clamp(3rem, 8.6vw, 6.8rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.standfirst {
  max-width: 600px;
  margin: 30px 0 0;
  font-size: clamp(1.06rem, 1.7vw, 1.26rem);
  line-height: 1.55;
  color: var(--ink-soft);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 28px;
  margin-top: 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 15px 22px;
  border: 1px solid var(--ink);
  color: var(--ink);
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  background: var(--ink);
  color: var(--paper);
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}

.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 3px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.link-arrow svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
  transition: transform 0.15s ease;
}

.link-arrow:hover { color: var(--accent); border-color: var(--accent); }
.link-arrow:hover svg { transform: translateX(3px); }

.cover-toc {
  align-self: start;
  border-left: 1px solid var(--line);
  padding-left: 28px;
}

.toc-head {
  margin: 0 0 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.toc {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc li + li { border-top: 1px solid var(--line); }

.toc a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 0;
  text-decoration: none;
  font-size: 15px;
  transition: color 0.15s ease;
}

.toc .num {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.toc .dots {
  flex: 1;
  border-bottom: 1px dotted var(--line-strong);
  transform: translateY(-4px);
}

.toc a:hover { color: var(--accent); }

.cover-foot {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  padding: 18px 0 22px;
  border-top: 1px solid var(--line);
}

.fig {
  margin: 0;
  max-width: 52%;
  font-size: 10.5px;
  line-height: 1.6;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.scale {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

.scale-bar {
  width: 120px;
  height: 8px;
  border: 1px solid var(--ink);
  background: repeating-linear-gradient(90deg, var(--ink) 0 15px, transparent 15px 30px);
}

.compass {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--ink-soft);
}

.compass svg { width: 32px; height: 32px; }

.compass span {
  font-size: 10.5px;
  letter-spacing: 0.1em;
}

/* ---------- Sections ---------- */

.sec {
  border-top: 2px solid var(--ink);
  padding: 84px 0;
}

.sec-grid {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 56px;
}

.rail-note {
  margin: 0;
  align-self: start;
  position: sticky;
  top: 88px;
}

.sec-body h2 {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.9rem, 4.4vw, 3.1rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.lede {
  max-width: 66ch;
  margin: 0 0 40px;
  font-size: clamp(1.04rem, 1.5vw, 1.2rem);
  line-height: 1.6;
  color: var(--ink-soft);
}

.dropcap::first-letter {
  float: left;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 3.3em;
  line-height: 0.78;
  padding: 0.06em 0.12em 0 0;
  color: var(--accent);
}

/* ---------- Studio ---------- */

.flag {
  border-top: 2px solid var(--ink);
  margin-top: 44px;
  padding-top: 22px;
}

.flag-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}

.flag h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 30px;
  letter-spacing: -0.02em;
}

.status {
  margin: 0;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.flag p {
  max-width: 62ch;
  margin: 12px 0 0;
  font-size: 15.5px;
  color: var(--ink-soft);
}

.meta-line {
  margin-top: 16px !important;
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.meta-line span { color: var(--accent); padding: 0 4px; }

.entries {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0 40px;
  margin-top: 52px;
}

.entry {
  border-top: 1px solid var(--ink);
  padding-top: 18px;
}

.entry h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.015em;
}

.entry p {
  margin: 0 0 14px;
  font-size: 14.5px;
  color: var(--ink-soft);
}

.entry .status {
  color: var(--ink-soft);
  opacity: 0.85;
}

/* ---------- Engine notes ---------- */

.notes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: 56px;
}

.notes li {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding: 22px 0;
}

.notes .num {
  padding-top: 6px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.notes h3 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 21px;
  letter-spacing: -0.015em;
}

.notes p {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-soft);
}

.data {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 56px 0 0;
  border-top: 2px solid var(--ink);
}

.data > div {
  padding: 16px 20px 18px 0;
  border-right: 1px solid var(--line);
}

.data > div:last-child { border-right: 0; }

.data dt {
  margin: 0 0 6px;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.data dd {
  margin: 0;
  font-size: 15.5px;
  font-weight: 600;
}

.pullquote {
  position: relative;
  margin: 60px 0 0;
  padding-left: 42px;
  max-width: 790px;
}

.pullquote::before {
  content: "\201C";
  position: absolute;
  left: 0;
  top: -10px;
  font-family: var(--serif);
  font-size: 3.6rem;
  line-height: 1;
  color: var(--accent);
}

.pullquote p {
  margin: 0;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.32rem, 2.4vw, 1.85rem);
  line-height: 1.32;
  letter-spacing: -0.01em;
}

/* ---------- Rail Universe ---------- */

.rail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr);
  gap: 56px;
  align-items: start;
}

.rail-grid h2 { margin-top: 0; }

.tags {
  margin: 26px 0 0;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.tags span:first-child { color: var(--accent); }

.plate {
  margin: 0;
  border: 1px solid var(--ink);
  background: var(--paper-2);
  padding: 18px 18px 14px;
}

.plate-art svg {
  display: block;
  width: 100%;
  height: auto;
}

.rail-line { stroke: var(--ink); stroke-width: 2.5; }
.rail-accent { stroke: var(--accent); stroke-width: 2.5; }
.ticks line { stroke: var(--line-strong); stroke-width: 2; }
.origin-line {
  stroke: var(--accent);
  stroke-width: 1.5;
  stroke-dasharray: 4 5;
  opacity: 0.8;
}

.plate-art text {
  font-family: var(--mono);
  font-size: 17px;
  letter-spacing: 0.08em;
  fill: var(--ink-soft);
}

.plate-art .lbl-accent { fill: var(--accent); }

.train { animation: railmove 18s linear infinite; }
.train rect { fill: var(--accent); }
.train .train-car { fill: rgba(23, 20, 16, 0.35); }

@keyframes railmove {
  from { transform: translateX(0); }
  to { transform: translateX(792px); }
}

.plate figcaption {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 10.5px;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* ---------- Schedule ---------- */

.sched {
  margin-top: 8px;
  border-top: 2px solid var(--ink);
}

.sched-row {
  display: grid;
  grid-template-columns: 110px minmax(0, 0.9fr) minmax(0, 1.25fr);
  gap: 28px;
  align-items: baseline;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.sched-row:last-child { border-bottom: 0; }

.when {
  padding-top: 4px;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.sched h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 21px;
  letter-spacing: -0.015em;
}

.sched p {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-soft);
}

/* ---------- Contact ---------- */

.mail-row { margin: 8px 0 0; }

.mail {
  display: inline-block;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.9rem, 5.4vw, 3.6rem);
  letter-spacing: -0.025em;
  text-decoration: none;
  border-bottom: 3px solid var(--accent);
  padding-bottom: 5px;
  transition: color 0.15s ease;
}

.mail:hover { color: var(--accent); }

/* ---------- Colophon ---------- */

.colophon {
  border-top: 2px solid var(--ink);
  padding: 48px 0 42px;
}

.colophon-mark {
  margin: 0 0 28px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.colophon-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) auto auto;
  gap: 16px 48px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.colophon-grid p {
  margin: 0;
  max-width: 48ch;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.colophon-grid .mono { font-size: 11.5px; letter-spacing: 0.06em; }

.colophon-grid a {
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color 0.15s ease, border-color 0.15s ease;
}

.colophon-grid a:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- Legal document ---------- */

.doc {
  max-width: 780px;
  padding: 84px 0 96px;
}

.doc h1 {
  margin: 14px 0 10px;
  font-family: var(--serif);
  font-weight: 650;
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  line-height: 1;
  letter-spacing: -0.03em;
}

.updated {
  margin: 0 0 48px;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.doc-sec {
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.doc-sec h2 {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.doc p,
.doc li {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.doc ul {
  margin: 0 0 14px;
  padding-left: 20px;
}

.doc strong { color: var(--ink); }

.doc a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
}

.doc a:hover { color: var(--accent); }

/* ---------- Responsive ---------- */

@media (max-width: 1060px) {
  .cover-grid {
    grid-template-columns: 1fr;
    gap: 44px;
    padding: 84px 0 52px;
  }
  .cover-toc {
    border-left: 0;
    border-top: 2px solid var(--ink);
    padding-left: 0;
    padding-top: 20px;
  }
  .sec-grid { grid-template-columns: 1fr; gap: 18px; }
  .rail-note { position: static; }
  .notes { grid-template-columns: 1fr; }
  .rail-grid { grid-template-columns: 1fr; gap: 40px; }
  .data { grid-template-columns: repeat(2, 1fr); }
  .data > div:nth-child(2n) { border-right: 0; }
  .sched-row { grid-template-columns: 1fr; gap: 6px; }
  .colophon-grid { grid-template-columns: 1fr; gap: 10px; }
  .mast-meta { display: none; }
  .mast-in { gap: 20px; }
}

@media (max-width: 720px) {
  .entries { grid-template-columns: 1fr; gap: 26px; }
  .cover-foot {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .fig { max-width: none; }
  .sec { padding: 64px 0; }
  .plate { padding: 12px 12px 10px; }
  .data { grid-template-columns: 1fr; }
  .data > div { border-right: 0; }
  .pullquote { padding-left: 30px; }
  .pullquote::before { font-size: 2.8rem; top: -6px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .train { animation: none; }
  .link-arrow::after { transition: none; }
}