:root {
  --ink: #111;
  --muted: #555;
  --line: #999;
  --paper: #f7f7f7;
  --accent: #333;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 28px;
  border-bottom: 2px solid var(--line);
  background: white;
}

.brand {
  font-weight: 800;
  text-decoration: none;
  font-size: 1.2rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus {
  text-decoration: underline;
}

.nav-toggle {
  display: none;
}

.hero {
  display: block;
  max-width: 1160px;
  margin: 0 auto;
  padding: 40px 28px;
  border-bottom: 2px solid var(--line);
  background: white;
}

.hero-media {
  height: 180px;
  margin-bottom: 24px;
  border: 2px dashed var(--line);
  background: #e9e9e9;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-weight: 700;
  text-align: center;
  padding: 16px;
}

.hero-copy {
  max-width: 720px;
}

.hero h1 {
  margin: 0;
  font-size: 2.5rem;
  line-height: 1.1;
}

.hero p {
  max-width: 58ch;
  font-size: 1.08rem;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.hero .eyebrow {
  color: var(--muted);
}

.hero-actions,
.section-heading,
.filters {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.button,
.filter,
.transport-options button,
.save,
.nav-toggle {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: white;
  color: var(--ink);
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.secondary:hover,
.filter:hover,
.transport-options button:hover,
.save:hover {
  outline: 2px solid var(--ink);
}

.section {
  padding: 56px 28px;
  max-width: 1160px;
  margin: 0 auto;
}

.plan-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 24px;
}

.section h2 {
  margin: 0 0 10px;
  font-size: 2rem;
}

.section-copy {
  color: var(--muted);
}

.trip-form,
.itinerary,
.card,
.activity,
.transport-options {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: white;
}

.trip-form {
  display: grid;
  gap: 14px;
  padding: 18px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-weight: 700;
}

select {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 8px 10px;
  font: inherit;
}

.itinerary {
  grid-column: 1 / -1;
  padding: 18px 22px;
}

.section-heading {
  justify-content: space-between;
  margin-bottom: 18px;
}

.text-link {
  color: var(--ink);
  font-weight: 700;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  padding: 20px;
}

.card p,
.activity p,
.split p,
.faq p {
  color: var(--muted);
}

.filter.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.activity-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.activity {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 16px;
  align-items: center;
  padding: 18px;
}

.activity h3,
.card h3 {
  margin: 0;
}

.activity p {
  grid-column: 1 / -1;
  margin: 0;
}

.activity.hidden {
  display: none;
}

.save.saved {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.transport-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 18px;
}

.transport-options p {
  grid-column: 1 / -1;
  margin: 4px 0 0;
}

.faq {
  max-width: 840px;
}

details {
  border-top: 1px solid var(--line);
  padding: 16px 0;
}

summary {
  cursor: pointer;
  font-weight: 800;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  max-width: 320px;
  padding: 12px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: white;
  opacity: 0;
  transform: translateY(10px);
  transition: .2s ease;
}

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

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    padding: 12px 18px;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
  }

  .site-nav {
    display: none;
    position: absolute;
    inset: 58px 18px auto 18px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: white;
    flex-direction: column;
    align-items: flex-start;
  }

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

  .hero {
    padding: 44px 18px;
  }

  .section {
    padding: 42px 18px;
  }

  .plan-grid,
  .cards,
  .activity-list,
  .split {
    grid-template-columns: 1fr;
  }

  .transport-options {
    grid-template-columns: 1fr;
  }
}