:root {
  --color-bg: #111;
  --color-fg: #eee;
  --color-muted: #aaa;
  --color-accent: #7aa2f7;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--color-fg);
  line-height: 1.5;
}

a {
  color: var(--color-accent);
}

.site-header {
  padding: 1.5rem 1rem 0;
  text-align: center;
}

.site-title {
  margin: 0;
  font-size: 1.8rem;
}

.site-title a {
  color: var(--color-fg);
  text-decoration: none;
}

.site-tagline {
  margin: 0.25rem 0 0;
  color: var(--color-muted);
}

.site-main {
  max-width: 60rem;
  margin: 2rem auto;
  padding: 0 1rem;
}

.site-footer {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.875rem;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
  padding: 0.25rem 0.5rem;
  background: var(--color-accent);
  color: var(--color-bg);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.voyage-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.voyage-card a {
  display: block;
  padding: 1rem;
  border: 1px solid #333;
  border-radius: 0.5rem;
  color: var(--color-fg);
  text-decoration: none;
  transition: border-color 0.15s;
}

.voyage-card a:hover {
  border-color: var(--color-accent);
}

.voyage-card h3 {
  margin: 0 0 0.25rem;
}

.voyage-card p {
  margin: 0;
  color: var(--color-muted);
}

.voyage-cover picture,
.voyage-cover img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0.25rem;
  margin-bottom: 0.75rem;
}

.day {
  margin-bottom: 3rem;
}

.day-title {
  margin-bottom: 1rem;
}

.day-photos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr));
  gap: 1rem;
}

.photo {
  margin: 0;
}

.photo picture,
.photo img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0.25rem;
}

.photo-location {
  margin-top: 0.35rem;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.photo-img {
  cursor: zoom-in;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
}

.lightbox[hidden] {
  display: none;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
}

.lightbox-img {
  position: relative;
  max-width: min(94vw, 2560px);
  max-height: 90vh;
  width: auto;
  height: auto;
  border-radius: 0.25rem;
}

.lightbox-location {
  position: relative;
  margin: 0.75rem 0 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.lightbox-btn {
  position: absolute;
  z-index: 1;
  width: 2.75rem;
  height: 2.75rem;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-fg);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.lightbox-btn:hover {
  background: rgba(255, 255, 255, 0.25);
}

.lightbox-close {
  top: 1rem;
  right: 1rem;
}

.lightbox-prev {
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-next {
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
}