:root {
  --bg-canvas: #f7f5f0;
  --bg-surface: #ffffff;
  --bg-surface-hover: #fcfaf7;
  --text-primary: #111111;
  --text-muted: #524f49;
  --accent-primary: #d62828;
  --accent-secondary: #9e1b1b;
  --border-subtle: #111111;
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-elevation: none;
  --glow-accent: none;
  --glass-backdrop: none;
  --font-heading: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.65;
  font-size: 16px;
  overflow-wrap: anywhere;
  hyphens: auto;
}

h1, h2, h3, h4, .station-code, .nav-link, .brand-link, .step-num, .fact-label {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  line-height: 1.2;
  font-weight: 700;
}

h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.5rem);
  letter-spacing: 0.14em;
  margin-bottom: 1.25rem;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.2rem;
  margin-bottom: 0.65rem;
}

p {
  margin-bottom: 1.15rem;
  max-width: 70ch;
}

a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s var(--ease-kinetic);
}

a:hover {
  color: var(--text-primary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.dot-grid-bg {
  background-image: radial-gradient(#c7c2b8 1px, transparent 1px);
  background-size: 18px 18px;
}

/* Header & Navigation */
.site-header {
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
  background-color: var(--bg-canvas);
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 1.25rem;
  letter-spacing: 0.16em;
}

.brand-signal {
  width: 12px;
  height: 12px;
  background-color: var(--accent-primary);
  border-radius: 50%;
  display: inline-block;
  border: 1px solid var(--text-primary);
}

.header-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.header-nav-row {
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 2rem;
  min-height: 46px;
}

.nav-list {
  list-style: none;
  display: flex;
  flex-wrap: nowrap;
  gap: 1.75rem;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.85rem;
  padding: 0.5rem 0;
  display: inline-block;
  border-bottom: 2px solid transparent;
}

.nav-link:hover, .nav-link[aria-current="page"] {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

.mobile-menu-btn {
  display: none;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 0.35rem 0.65rem;
  font-size: 1.2rem;
  line-height: 1;
  color: var(--text-primary);
  cursor: pointer;
}

/* Hero Section */
.hero-paper {
  padding: 4.5rem 0 3.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-kicker {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-primary);
  border: 1px solid var(--accent-primary);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 1.25rem;
  background-color: var(--bg-surface);
}

.hero-lead {
  font-size: 1.2rem;
  color: var(--text-primary);
  max-width: 68ch;
  margin-bottom: 2rem;
}

.btn-pill {
  display: inline-block;
  background-color: var(--accent-primary);
  color: #ffffff;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.88rem;
  padding: 0.8rem 1.65rem;
  border-radius: 999px;
  border: none;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease-kinetic), background-color 0.2s ease;
}

.btn-pill:hover {
  background-color: var(--accent-secondary);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-outline {
  display: inline-block;
  background-color: var(--bg-surface);
  color: var(--text-primary);
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.82rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  text-decoration: none;
  cursor: pointer;
}

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

/* Railway Diagram Timeline Layout */
.rail-diagram-stream {
  position: relative;
  padding: 3rem 0;
}

.journey-node {
  position: relative;
  padding-left: 3.25rem;
  padding-bottom: 4rem;
  border-left: 2px solid var(--accent-primary);
  margin-left: 1rem;
}

.journey-node:last-child {
  padding-bottom: 1rem;
}

.node-marker {
  position: absolute;
  left: -17px;
  top: 0;
  width: 32px;
  height: 32px;
  background-color: var(--bg-surface);
  border: 2px solid var(--accent-primary);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.node-header {
  margin-bottom: 1.5rem;
}

.node-sub {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.35rem;
}

/* Flat White Panel Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.paper-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.25s var(--ease-kinetic), background-color 0.25s ease;
}

.paper-card:hover {
  transform: translateY(-3px);
  background-color: var(--bg-surface-hover);
}

.card-img-wrap {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  margin-bottom: 1.15rem;
  background-color: #e8e4dc;
}

.card-img-wrap.wide {
  aspect-ratio: 16 / 9;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Connected Stop Markers Component */
.stop-chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  margin: 1.25rem 0;
}

.stop-pill {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--bg-canvas);
}

.stop-line {
  width: 24px;
  height: 2px;
  background-color: var(--accent-primary);
  display: inline-block;
}

/* Route Fact Rows */
.fact-table-wrap {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--bg-surface);
}

.fact-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.fact-table th, .fact-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.fact-table th {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background-color: var(--bg-canvas);
  font-size: 0.8rem;
}

.fact-table tr:last-child td {
  border-bottom: none;
}

/* Notice / Operator Confirmation Box */
.operator-notice {
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--accent-primary);
  background-color: var(--bg-surface);
  padding: 1rem 1.25rem;
  border-radius: 4px;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

/* Split Narrative & Prose */
.prose-section {
  padding: 3rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.split-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 2.5rem;
  align-items: start;
}

.ticket-sidebar {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 1.5rem;
}

.ticket-header {
  border-bottom: 1px dashed var(--border-subtle);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.fact-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid #e2ded5;
  font-size: 0.88rem;
}

.fact-row:last-child {
  border-bottom: none;
}

/* FAQ Disclosure / Accordion */
.faq-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  margin-bottom: 1rem;
  padding: 1.15rem 1.35rem;
}

.faq-item summary {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item summary::after {
  content: "+";
  color: var(--accent-primary);
  font-size: 1.25rem;
  font-weight: 700;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-body {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid #e2ded5;
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.82rem;
  margin-bottom: 0.4rem;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--bg-surface);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-primary);
}

.preview-box {
  background-color: var(--bg-canvas);
  border: 1px dashed var(--border-subtle);
  border-radius: 4px;
  padding: 1rem;
  font-family: monospace;
  font-size: 0.85rem;
  white-space: pre-wrap;
  min-height: 120px;
  margin: 1rem 0;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease-kinetic), transform 0.6s var(--ease-kinetic);
}

.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Footer */
.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 3.5rem 0 2.5rem;
  margin-top: 3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .split-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: inline-block;
  }
  .header-meta {
    display: none;
  }
  .header-nav-row {
    display: none;
  }
  .header-nav-row.is-open {
    display: block;
  }
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.75rem 0;
  }
  .journey-node {
    padding-left: 2rem;
    margin-left: 0.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
  h1 {
    font-size: 2rem;
  }
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}