:root {
  --ink: #1a1a1a;
  --muted: #6b6b6b;
  --hair: #e2e2e2;
  --rail: #d8d8d8;
  --rest: #fafafa;
  --accent: #2c5f7c;
  --drive: #eef3f6;
  --drive-line: #d4e0e7;
  --bg: #fff;
  --nav: #fff;
  --maxw: 44rem;
}

* { box-sizing: border-box }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 7.5rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a { color: var(--accent) }

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--nav);
  border-bottom: 1px solid var(--hair);
}

.site-nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.75rem 1.25rem 0;
}

.brand {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
}

.brand-left h1 {
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  margin: 0;
}

.brand-left p {
  margin: 0.1rem 0 0;
  font-size: 0.75rem;
  color: var(--muted);
}

.overview-link {
  flex: none;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.2rem 0 0.15rem;
  border-bottom: 2px solid transparent;
}

.overview-link:hover { color: var(--ink) }

.overview-link.is-active {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.tabs {
  display: flex;
  gap: 0.15rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin: 0 -1.25rem;
  padding: 0 1.25rem;
}

.tabs::-webkit-scrollbar { display: none }

.tab {
  flex: 1;
  appearance: none;
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.55rem 0.35rem 0.7rem;
  cursor: pointer;
  white-space: nowrap;
  text-align: center;
  min-width: 0;
}

.tab[aria-selected="true"] {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
}

.panel { display: none }
.panel.is-active { display: block }

/* ---------- overview ---------- */

.overview-hero {
  border-bottom: 1px solid var(--hair);
  padding-bottom: 1.35rem;
  margin-bottom: 1.5rem;
}

.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.4rem;
}

.overview-hero h2,
.day-head h2 {
  font-size: 1.6rem;
  line-height: 1.2;
  margin: 0 0 0.2rem;
  font-weight: 600;
}

.sub {
  color: var(--muted);
  margin: 0 0 1.1rem;
  font-size: 0.95rem;
}

.bases {
  display: grid;
  gap: 0.65rem;
  margin: 0 0 1.75rem;
  padding: 0;
  list-style: none;
}

.bases li {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.75rem;
  font-size: 0.9rem;
}

.bases b { font-weight: 600 }

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

.day-index li {
  border-top: 1px solid var(--hair);
}

.day-index a {
  display: grid;
  grid-template-columns: 3.2rem 1fr;
  gap: 0.85rem;
  padding: 0.95rem 0;
  text-decoration: none;
  color: inherit;
}

.day-index .n {
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.day-index h3 {
  font-size: 1.02rem;
  margin: 0 0 0.15rem;
  font-weight: 600;
}

.day-index p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.swap-note {
  margin-top: 1.5rem;
  padding: 0.75rem 0.85rem;
  background: #fff8ec;
  border-left: 2px solid #d9a441;
  font-size: 0.9rem;
}

.offline-note {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--hair);
  color: var(--muted);
  font-size: 0.85rem;
}

/* ---------- day header ---------- */

.day-head {
  border-bottom: 1px solid var(--hair);
  padding-bottom: 1.25rem;
  margin-bottom: 0.5rem;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.stats div {
  font-size: 0.8rem;
  color: var(--muted);
}

.stats b {
  display: block;
  font-size: 1rem;
  color: var(--ink);
  font-weight: 600;
  margin-top: 0.1rem;
}

.route-link {
  margin: 1rem 0 0;
  padding: 0.75rem 1rem;
  background: var(--rest);
  border-radius: 4px;
  font-size: 0.875rem;
}

.route-link a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.route-link span {
  display: block;
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.8rem;
}

/* ---------- timeline ---------- */

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

.stop {
  display: grid;
  grid-template-columns: 5.5rem 1px 1fr;
  gap: 0 1.1rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--hair);
}

.stop--rest { background: var(--rest); margin: 0 -1.25rem; padding-left: 1.25rem; padding-right: 1.25rem }

.stop--opt .content h2::after {
  content: "optional";
  font-size: 0.65rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--hair);
  padding: 0.12rem 0.4rem;
  border-radius: 2px;
  margin-left: 0.5rem;
  vertical-align: middle;
  font-weight: 500;
}

.clock {
  font-size: 0.9rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  padding-top: 0.1rem;
}

.clock span {
  display: block;
  font-weight: 400;
  color: var(--muted);
  font-size: 0.78rem;
  margin-top: 0.15rem;
}

.rail { background: var(--rail); width: 1px }

.content h2 {
  font-size: 1.08rem;
  margin: 0 0 0.15rem;
  font-weight: 600;
}

.content p { margin: 0.6rem 0 0; font-size: 0.95rem }
.content p:first-of-type { margin-top: 0.5rem }

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 0.35rem 0 0;
}

.links a {
  font-size: 0.78rem;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 95, 124, 0.3);
}

.links a:hover { border-bottom-color: var(--accent) }

.flag {
  margin-top: 0.7rem;
  padding: 0.55rem 0.75rem;
  background: #fff8ec;
  border-left: 2px solid #d9a441;
  font-size: 0.87rem;
}

.connector {
  margin: 0 -1.25rem;
  padding: 0.65rem 1.25rem;
  background: var(--drive);
  border-top: 1px solid var(--drive-line);
  border-bottom: 1px solid var(--drive-line);
  list-style: none;
}

.connector-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(7.5rem, 1.4fr) minmax(0, 1fr);
  align-items: center;
  gap: 0.45rem 0.6rem;
  color: inherit;
  text-decoration: none;
}

.connector-place {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 0;
  line-height: 1.25;
}

.connector-place:first-child { text-align: right }
.connector-place:last-child { text-align: left }

.connector-viz {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  min-width: 0;
}

.connector-viz .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
  opacity: 0.7;
}

.connector-viz .line {
  flex: 1;
  height: 0;
  border-top: 2px dotted #8aa8b8;
  min-width: 0.6rem;
}

.connector-viz .time {
  font-size: 0.75rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.connector-inner:hover .connector-place {
  text-decoration: underline;
  text-underline-offset: 2px;
}

figure { margin: 0.9rem 0 0 }
figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 2px;
  background: #f0f0f0;
}

.gallery {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.9rem;
}

.day-foot {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--hair);
  font-size: 0.87rem;
  color: var(--muted);
}

.day-foot h3 {
  font-size: 0.75rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.6rem;
}

.day-foot ul { margin: 0; padding-left: 1.1rem }
.day-foot li { margin-bottom: 0.4rem }
.day-foot .after { margin-top: 1rem }

/* ---------- breakpoints ---------- */

@media (max-width: 559px) {
  html { scroll-padding-top: 8.25rem }

  .site-nav-inner { padding: 0.7rem 1rem 0 }
  .tabs { margin: 0 -1rem; padding: 0 1rem }
  .tab { padding: 0.5rem 0.15rem 0.65rem; font-size: 0.8rem }
  .tab-prefix { display: none }

  .wrap { padding: 1.25rem 1rem 3rem }
  .overview-hero h2,
  .day-head h2 { font-size: 1.4rem }

  .stop {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .rail { display: none }

  .clock {
    padding-bottom: 0.35rem;
    font-size: 0.82rem;
  }

  .clock span {
    display: inline;
    margin-top: 0;
  }

  .clock span::before { content: " · " }

  .stop--rest { margin: 0 -1rem; padding-left: 1rem; padding-right: 1rem }
  .connector { margin: 0 -1rem; padding-left: 1rem; padding-right: 1rem }
  .connector-inner {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    gap: 0.2rem;
  }
  .connector-place:first-child,
  .connector-place:last-child { text-align: center }
  .connector-viz { width: 100%; max-width: 16rem }

  .bases li { grid-template-columns: 1fr; gap: 0.15rem }
  .stats { gap: 1rem 1.25rem }
}

@media (min-width: 560px) and (max-width: 767px) {
  .stop {
    grid-template-columns: 4.2rem 1px 1fr;
    gap: 0 0.8rem;
  }
  .clock { font-size: 0.82rem }
}

@media (min-width: 768px) {
  .site-nav-inner,
  .wrap { padding-left: 1.5rem; padding-right: 1.5rem }
  .stop--rest { margin: 0 -1.5rem; padding-left: 1.5rem; padding-right: 1.5rem }
  .connector { margin: 0 -1.5rem; padding-left: 1.5rem; padding-right: 1.5rem }
  .stats { gap: 1.75rem }
}

@media (min-width: 1024px) {
  .overview-hero h2,
  .day-head h2 { font-size: 1.75rem }
}

@media print {
  .site-nav { position: static }
  .tabs,
  .overview-link { display: none }
  .panel { display: block !important }
  .stop,
  .connector { break-inside: avoid }
  figure { display: none }
}