:root {
  --paper: #ffffff;
  --paper-2: #f3f8fd;
  --ink: #1a2332;
  --ink-soft: #4a5568;
  --muted: #718096;
  --line: #e2e8f0;
  --accent: #3b9be8;
  --accent-hover: #2b7fc9;
  --forest: #3b9be8;
  --day1: #3b9be8;
  --day2: #1a4a7a;
  --card: #ffffff;
  --max: 68rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  font-family: "Source Serif 4", "PT Serif", Georgia, "Times New Roman", serif;
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
}

a { color: var(--accent); text-underline-offset: 0.15em; }
a:hover { color: var(--accent-hover); }

.wrap { width: min(var(--max), calc(100% - 2rem)); margin: 0 auto; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.9rem 0;
  flex-wrap: wrap;
}
.logo {
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.92rem;
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.logo::before {
  content: "";
  width: 1.55rem;
  height: 1.55rem;
  background: url("../img/favicon-64.png?v=5") center / contain no-repeat;
  border-radius: 0.4rem;
  flex: 0 0 1.55rem;
}
.logo span { color: var(--accent); }
nav { display: flex; flex-wrap: wrap; gap: 0.75rem 1.1rem; }
nav a {
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-size: 0.85rem;
  color: var(--ink-soft);
  text-decoration: none;
}
nav a:hover, nav a[aria-current="page"] { color: var(--accent); }

.hero {
  padding: 3.2rem 0 2.2rem;
  border-bottom: 1px solid var(--line);
}
.kicker {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.6rem;
}
h1 {
  font-family: "IBM Plex Sans", sans-serif;
  font-weight: 600;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}
.lead { font-size: 1.2rem; color: var(--ink-soft); max-width: 40rem; }

main { padding: 2.4rem 0 3.5rem; }
h2 {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 1.45rem;
  margin: 2.2rem 0 0.7rem;
}
h3 {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 1.15rem;
  margin: 1.6rem 0 0.5rem;
}
p { margin: 0 0 1rem; }
ul, ol { padding-left: 1.2rem; }
li { margin-bottom: 0.4rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17.5rem, 1fr));
  gap: 1rem;
  margin: 1.4rem 0 2rem;
}
.card {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  box-shadow: 0 8px 24px rgba(26, 80, 140, 0.06);
  padding: 1.15rem 1.2rem 1.25rem;
  text-decoration: none;
  color: inherit;
}
.card:hover { border-color: var(--accent); }
.card h2, .card h3 { margin-top: 0; font-size: 1.2rem; }
.card p { color: var(--muted); font-size: 1rem; margin-bottom: 0; }
.meta {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--forest);
  margin: 0 0 0.4rem;
}

.box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  box-shadow: 0 8px 24px rgba(26, 80, 140, 0.05);
  padding: 1.1rem 1.2rem;
  margin: 1.4rem 0;
}
.box h2, .box h3 { margin-top: 0; }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1.2rem 0 0.4rem;
}
.btn {
  font-family: "IBM Plex Sans", sans-serif;
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 0.55rem 1.05rem;
  font-size: 0.92rem;
  border-radius: 999px;
}
.btn:hover { background: var(--accent-hover); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
}
.btn-ghost:hover { background: #e8f4fc; color: var(--accent-hover); }

.aff-note {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0.35rem 0 1.2rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1rem;
  margin: 1rem 0 1.5rem;
}
th, td {
  text-align: left;
  border-bottom: 1px solid var(--line);
  padding: 0.55rem 0.4rem;
  vertical-align: top;
}
th {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.6rem 0 2.2rem;
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.85rem;
  color: var(--muted);
}
.site-footer a { color: var(--ink-soft); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 0.6rem 1.4rem; justify-content: space-between; }

@media (max-width: 640px) {
  body { font-size: 1.05rem; }
  nav { gap: 0.5rem 0.85rem; }
}

.trip-filter {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1rem 1.15rem 1.1rem;
  margin: 1.5rem 0 1.8rem;
}
.trip-filter-label {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--forest);
  margin: 0 0 0.65rem;
}
.trip-ages {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}
.trip-ages button {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.88rem;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink-soft);
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  border-radius: 999px;
}
.trip-ages button.is-on {
  border-color: var(--accent);
  background: #e8f4fc;
  color: var(--accent);
}
.kids-panel { display: none; }
html[data-kid-age="0-2"] .kids-panel[data-kids~="0-2"],
html[data-kid-age="3-6"] .kids-panel[data-kids~="3-6"],
html[data-kid-age="7-12"] .kids-panel[data-kids~="7-12"],
html[data-kid-age="13"] .kids-panel[data-kids~="13"] { display: block; }
html[data-kid-age="none"] .adult-only { display: block; }
.kids-panel {
  border-left: 3px solid var(--accent);
  padding: 0.2rem 0 0.2rem 0.9rem;
  margin: 0.8rem 0 1rem;
}

/* Origin selector */
.from-switch {
  display: flex;
  align-items: center;
  gap: 0.45rem 0.7rem;
  flex-wrap: wrap;
}
.from-switch-label,
.from-filter .trip-filter-label {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--forest);
}
.from-cities {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.from-cities button {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.82rem;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink-soft);
  padding: 0.32rem 0.6rem;
  cursor: pointer;
  border-radius: 999px;
}
.from-cities button.is-on {
  border-color: var(--accent);
  background: #e8f4fc;
  color: var(--accent);
}

.from-panel,
.from-line,
.honest-note { display: none; }
html[data-from="moscow"] .from-panel[data-from="moscow"],
html[data-from="spb"] .from-panel[data-from="spb"],
html[data-from="nn"] .from-panel[data-from="nn"],
html[data-from="kazan"] .from-panel[data-from="kazan"] { display: block; }
html[data-from="moscow"] .from-line[data-from="moscow"],
html[data-from="spb"] .from-line[data-from="spb"],
html[data-from="nn"] .from-line[data-from="nn"],
html[data-from="kazan"] .from-line[data-from="kazan"] { display: block; }
html[data-from="moscow"] .honest-note[data-from="moscow"],
html[data-from="spb"] .honest-note[data-from="spb"],
html[data-from="nn"] .honest-note[data-from="nn"],
html[data-from="kazan"] .honest-note[data-from="kazan"] { display: block; }

html[data-from="moscow"] .card[data-honest-moscow="stretch"],
html[data-from="spb"] .card[data-honest-spb="stretch"],
html[data-from="nn"] .card[data-honest-nn="stretch"],
html[data-from="kazan"] .card[data-honest-kazan="stretch"] {
  opacity: 0.72;
}
html[data-from="moscow"] .card[data-honest-moscow="no"],
html[data-from="spb"] .card[data-honest-spb="no"],
html[data-from="nn"] .card[data-honest-nn="no"],
html[data-from="kazan"] .card[data-honest-kazan="no"] {
  opacity: 0.42;
  filter: grayscale(0.2);
}

.honest-note {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.82rem;
  color: var(--accent);
  margin: 0.55rem 0 0;
}

.from-panel {
  border-left: 3px solid var(--forest);
  padding: 0.15rem 0 0.15rem 0.9rem;
  margin: 0 0 0.4rem;
}

.walk-map {
  width: 100%;
  max-width: 36rem;
  aspect-ratio: 1 / 1;
  height: min(100vw - 2rem, 36rem);
  min-height: 280px;
  margin: 1.1rem auto 0.4rem;
  border: 1px solid var(--line);
  background: var(--paper-2);
  z-index: 1;
}
.map-note {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0 0 1.4rem;
}

.hero-photo {
  margin: 1.3rem 0 0;
  max-width: none;
  width: 100%;
}
.hero-photo img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  background: #fff;
  border: none;
}
.hero-photo figcaption {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.4rem;
}

.city-icon {
  display: block;
  width: 3.4rem;
  height: 3.4rem;
  object-fit: cover;
  border: 1px solid var(--line);
  margin: 0 0 0.65rem;
  background: var(--paper-2);
}

.byline {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0.9rem 0 0;
}
.byline a { color: var(--ink-soft); }

.storyteller {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 1.2rem 1.5rem;
  align-items: start;
  margin: 1.2rem 0 2rem;
}
.storyteller-photo img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
}
.storyteller-photo {
  margin: 0;
}
@media (max-width: 640px) {
  .storyteller { grid-template-columns: 1fr; }
  .storyteller-photo { max-width: 12rem; }
}



.walk-norm {
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.5;
  margin: 0 0 1rem;
}

.walk-extras {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  padding: 0.95rem 1.1rem 1.05rem;
  margin: 1.1rem 0 1.3rem;
}
.walk-extras fieldset {
  border: 0;
  margin: 0;
  padding: 0;
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.walk-extras legend,
.walk-extras-label {
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--forest);
  padding: 0;
  margin: 0 0 0.6rem;
  width: 100%;
}
.walk-extra-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
label.walk-extra,
.walk-extra {
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-size: 0.86rem;
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.28rem 0.4rem;
  max-width: 100%;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink-soft);
  padding: 0.32rem 0.72rem 0.32rem 0.55rem;
  cursor: pointer;
  border-radius: 999px;
}
label.walk-extra input,
.walk-extra input {
  margin: 0;
  accent-color: var(--accent);
}
label.walk-extra.is-on,
label.walk-extra:has(:checked),
.walk-extra:has(:checked) {
  border-color: var(--accent);
  background: #e8f4fc;
  color: var(--accent);
}
.walk-extra-note {
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-size: 0.72rem;
  color: var(--muted);
  font-weight: 400;
  flex: 1 1 100%;
  padding-left: 1.3rem;
}
label.walk-extra.is-on .walk-extra-note,
label.walk-extra:has(:checked) .walk-extra-note,
.walk-extra:has(:checked) .walk-extra-note {
  color: var(--accent);
  opacity: 0.8;
}

/* Itinerary cards. Day 2 bar/timeline match maps.js DAY2 dashed line (#1a4a7a). */
.walk-day {
  --day-color: var(--day1);
  background: var(--card);
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-left-color: var(--day-color);
  border-radius: 0.85rem;
  box-shadow: 0 8px 24px rgba(26, 80, 140, 0.05);
  padding: 1.05rem 1.15rem 1.15rem;
  margin: 1.15rem 0 1.3rem;
}
.walk-day[data-day="2"] {
  --day-color: var(--day2);
}

.walk-day-title,
.walk-day h3 {
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 0.55rem;
}

.walk-stats {
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0 0 0.85rem;
}
.walk-stat-chip {
  display: inline-flex;
  align-items: center;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--day-color);
  background: #e8f4fc;
  border: 1px solid rgba(59, 155, 232, 0.28);
  border-radius: 999px;
  padding: 0.18rem 0.62rem;
}
.walk-day[data-day="2"] .walk-stat-chip {
  background: #eef3f8;
  border-color: rgba(26, 74, 122, 0.22);
}
.walk-stat-chip.is-over {
  color: var(--accent);
  background: #e8f4fc;
  border-color: rgba(59, 155, 232, 0.45);
}

.walk-lead {
  font-size: 1.02rem;
  color: var(--ink-soft);
  margin: 0 0 0.95rem;
}
.walk-close {
  font-size: 0.98rem;
  color: var(--muted);
  margin: 0.85rem 0 0;
}

.walk-stops {
  list-style: none;
  padding: 0;
  margin: 0;
}
.walk-stop {
  display: grid;
  grid-template-columns: 1.7rem minmax(0, 1fr);
  column-gap: 0.85rem;
  position: relative;
  padding-bottom: 1.05rem;
  margin: 0;
}
.walk-stop:last-child {
  padding-bottom: 0;
}
.walk-stop::before {
  content: "";
  position: absolute;
  left: 0.85rem;
  top: 1.7rem;
  bottom: 0;
  width: 2px;
  margin-left: -1px;
  background: var(--day-color);
  opacity: 0.32;
}
.walk-stop:last-child::before {
  display: none;
}
.walk-stop-num {
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  background: var(--day-color);
  color: #fff;
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  flex: 0 0 1.7rem;
}
.walk-stop-body {
  min-width: 0;
  padding-top: 0.12rem;
}
.walk-stop-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.28rem 0.45rem;
}
.walk-stop-name {
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--ink);
}
.walk-stop-opt {
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--paper-2);
  border-radius: 999px;
  padding: 0.08rem 0.42rem;
}
.walk-stop-blurb {
  display: block;
  margin: 0.18rem 0 0;
  font-size: 0.95rem;
  line-height: 1.45;
  color: var(--muted);
}
.walk-stop.is-extra {
  opacity: 0.78;
}
.walk-stop.is-extra .walk-stop-num {
  background: transparent;
  color: var(--day-color);
  border: 1.5px solid var(--day-color);
}
.walk-stop.is-extra .walk-stop-name {
  color: var(--ink-soft);
}

.walk-warn {
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-size: 0.92rem;
  color: var(--accent);
  border-left: 3px solid var(--accent);
  padding: 0.35rem 0 0.35rem 0.85rem;
  margin: 0.8rem 0 1rem;
}

.map-legend {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 1.15rem;
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0.25rem 0 0.2rem;
}
.map-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.map-legend-swatch {
  display: inline-block;
  width: 1.45rem;
  height: 0;
  border-top: 4px solid var(--day1);
}
.map-legend-swatch.is-day2 {
  border-top: 4px dashed var(--day2);
}

.walk-from-note {
  font-family: "IBM Plex Sans", "PT Sans", system-ui, sans-serif;
  font-size: 0.92rem;
  color: var(--accent);
  border-left: 3px solid var(--accent);
  padding: 0.35rem 0 0.35rem 0.85rem;
  margin: 0 0 1rem;
}