:root {
  --bg: #f7f0e5;
  --bg-alt: #efe2cd;
  --ink: #2f241d;
  --brand: #7f2a19;
  --accent: #1f5f73;
  --card: rgba(255, 255, 255, 0.76);
  --line: rgba(47, 36, 29, 0.2);
  --shadow: 0 14px 35px rgba(52, 33, 22, 0.15);
  --rail-photo: url("https://images.unsplash.com/photo-1474487548417-781cb71495f3?auto=format&fit=crop&w=2000&q=80");
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 10%, #fce8bc 0%, transparent 45%),
    radial-gradient(circle at 90% 80%, #e6cfb0 0%, transparent 30%),
    linear-gradient(180deg, var(--bg), var(--bg-alt));
  line-height: 1.6;
  overflow-x: hidden;
}

.railway-bg {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: -3;
  background-image:
    linear-gradient(rgba(247, 240, 229, 0.76), rgba(239, 226, 205, 0.85)),
    var(--rail-photo);
  background-size: cover;
  background-position: center;
  filter: saturate(0.9) contrast(0.9);
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(0, 0, 0, 0.04) 0.6px, transparent 0.6px);
  background-size: 4px 4px;
  opacity: 0.15;
  z-index: -2;
}

.wrap {
  width: min(1100px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(247, 240, 229, 0.82);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
}

.brand {
  font-family: "Cinzel", serif;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--brand);
  letter-spacing: 0.04em;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.1rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
}

.nav-links a:hover {
  color: var(--brand);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  padding: 0.45rem 0.95rem;
}

.hero {
  min-height: calc(100vh - 70px);
  display: grid;
  align-content: center;
  gap: 1rem;
  padding-block: 4rem;
}

.kicker {
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--accent);
  margin: 0;
}

h1,
h2,
h3 {
  font-family: "Cinzel", serif;
  margin: 0;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.2rem, 6vw, 4rem);
  max-width: 12ch;
}

.hero-copy {
  max-width: 60ch;
  margin: 0;
  font-size: 1.08rem;
}

.cta {
  width: fit-content;
  margin-top: 0.4rem;
  text-decoration: none;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(120deg, var(--brand), #aa402b);
  padding: 0.8rem 1.15rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.section {
  padding-block: 4.5rem;
}

.section-title {
  display: grid;
  gap: 0.85rem;
  max-width: 70ch;
  margin-bottom: 2rem;
}

.section-title p {
  margin: 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.2rem;
  box-shadow: var(--shadow);
}

.timeline-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0));
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid rgba(127, 42, 25, 0.35);
}

.timeline li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1.2rem;
  padding: 1.2rem 0 1.2rem 1.4rem;
  position: relative;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 1.75rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(127, 42, 25, 0.22);
}

.year {
  font-family: "Cinzel", serif;
  font-size: 1.1rem;
  color: var(--brand);
}

.event p {
  margin: 0.4rem 0 0;
}

.heritage-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.heritage-item {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.2rem;
}

.future {
  text-align: center;
  background: linear-gradient(140deg, rgba(31, 95, 115, 0.08), rgba(127, 42, 25, 0.1));
}

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 1.15rem;
  background: rgba(239, 226, 205, 0.9);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-content p {
  margin: 0;
}

.footer-content a {
  text-decoration: none;
  color: var(--brand);
  font-weight: 700;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

@media (max-width: 900px) {
  .card-grid,
  .heritage-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .railway-bg {
    background-position: 70% center;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 70px;
    right: 1rem;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 0.8rem;
    flex-direction: column;
    min-width: 170px;
    box-shadow: var(--shadow);
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .card-grid,
  .heritage-panel {
    grid-template-columns: 1fr;
  }

  .timeline li {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

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