:root {
  --accent: #a58f60;
  --ink: #222;
  --muted: #8a8a8a;
  --line: #ececec;
  --bg: #fff;
  --max: 1100px;
  --gap: 2px;
  font-family: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
}

* { box-sizing: border-box; }
body { margin: 0; line-height: 1.6; font-size: 15px; font-weight: 300; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }

.site-header, main, .site-footer { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
.site-header { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 40px; padding-bottom: 32px; }
.wordmark { font-size: 26px; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); font-weight: 300; }
.wordmark:hover { text-decoration: none; }
.site-nav { display: flex; gap: 22px; flex-wrap: wrap; font-size: 13px; }
.site-nav a { color: var(--accent); }
.site-nav a[aria-current="page"] { color: var(--ink); }

h1 { font-weight: 300; text-transform: uppercase; letter-spacing: .08em; font-size: 28px; line-height: 1.25; margin: 0 0 16px; text-align: center; }
h3 { font-weight: 300; }
.intro { max-width: 820px; margin: 0 auto 28px; text-align: center; }
.intro p { margin: 0 0 12px; }
.intro.text { text-align: left; }
.intro.text h1 { text-align: left; }
.back { display: inline-block; font-size: 13px; margin-bottom: 18px; }
.intro .back { display: block; text-align: left; }

.filters { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 18px; margin: 0 0 22px; }
.filters button { font: inherit; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; background: none; border: 0; border-bottom: 1px solid transparent; padding: 2px 0; color: var(--ink); cursor: pointer; }
.filters button[aria-pressed="true"] { border-bottom-color: var(--ink); }
.filters button:hover { color: var(--accent); }

/* Raster: ohne JavaScript als Spalten, mit JavaScript als Masonry in Lesereihenfolge */
.grid { columns: 3 260px; column-gap: var(--gap); }
.grid .tile { break-inside: avoid; margin: 0 0 var(--gap); }
.grid.is-masonry { columns: auto; display: flex; gap: var(--gap); align-items: flex-start; }
.grid.is-masonry .col { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: var(--gap); }
.grid.is-masonry .tile { margin: 0; }
.tile { position: relative; margin: 0; overflow: hidden; background: #f3f3f3; }
.tile a { display: block; }
.tile img { width: 100%; transition: opacity .25s, transform .4s; }
.tile figcaption { position: absolute; inset: auto 0 0 0; padding: 28px 12px 10px; font-size: 13px; color: #fff; background: linear-gradient(transparent, rgba(0,0,0,.45)); opacity: 0; transition: opacity .25s; pointer-events: none; }
.tile:hover figcaption, .tile a:focus-visible + figcaption { opacity: 1; }
.tile:hover img { transform: scale(1.02); }
.tile[hidden] { display: none; }

/* Albumkacheln: Vorderseite mit Bild und Titel, Rückseite mit Text, Drehung beim Überfahren */
.albums { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.album { display: block; aspect-ratio: 1; perspective: 1000px; color: inherit; outline-offset: 3px; }
.album:hover { text-decoration: none; }
.flipper { position: relative; display: block; width: 100%; height: 100%; transform-style: preserve-3d; transition: transform .5s ease-in-out; }
.face { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; padding: 18px; text-align: center; border-radius: 10px; overflow: hidden; backface-visibility: hidden; -webkit-backface-visibility: hidden; }
.front { background: #d6d6d6; color: #fff; }
.front img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.front::after { content: ""; position: absolute; inset: 0; background: rgba(0,0,0,.15); }
.front .album-title { position: relative; z-index: 1; text-shadow: 0 1px 6px rgba(0,0,0,.35); }
.back { transform: rotateY(180deg); background: #ebebeb; color: var(--ink); }
.album-title { font-size: 24px; line-height: 1.15; text-transform: uppercase; letter-spacing: .04em; }
.album-back-title { font-size: 22px; line-height: 1.15; text-transform: uppercase; letter-spacing: .04em; }
.album-text { font-size: 13px; line-height: 1.45; }
.album-btn { display: inline-block; margin-top: 4px; padding: 9px 20px; border-radius: 5px; background: #c8bc9f; color: #fff; font-size: 14px; transition: background .2s; }
a.album:hover .album-btn, a.album:focus-visible .album-btn { background: var(--accent); }
.album.is-empty .front { background: #e3e3e3; color: #fff; }
.album.is-empty .front::after { display: none; }
.album.is-empty .album-title { text-shadow: none; color: #fff; }
@media (hover: hover) {
  .album:hover .flipper, .album:focus-visible .flipper { transform: rotateY(180deg); }
}
/* Touch: keine Drehung, der Titel führt direkt ins Album */
@media (hover: none) {
  .back { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .flipper { transition: none; }
}

.work { text-align: center; }
.work img { margin: 0 auto; max-height: 82vh; width: auto; }
.work-meta { display: flex; justify-content: center; flex-wrap: wrap; gap: 6px 14px; font-size: 13px; margin: 14px 0; }
.work-nav { display: flex; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 14px; font-size: 13px; }

.contact-image { width: 100%; margin-bottom: 30px; }
.contact { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; }
.contact h1 { text-align: left; }
.contact .lead { font-size: 18px; }
@media (max-width: 720px) { .contact { grid-template-columns: 1fr; gap: 10px; } }

.trips { list-style: none; padding: 0; font-size: 18px; }

.site-footer { margin-top: 60px; padding-top: 22px; padding-bottom: 40px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); text-align: center; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 10; background: rgba(255,255,255,.97); display: flex; align-items: center; justify-content: center; }
.lightbox[hidden] { display: none; }
.lightbox figure { margin: 0; max-width: calc(100vw - 120px); text-align: center; }
.lightbox img { max-width: 100%; max-height: calc(100vh - 110px); width: auto; height: auto; margin: 0 auto; box-shadow: 0 2px 24px rgba(0,0,0,.12); }
.lightbox figcaption { margin-top: 12px; font-size: 14px; }
.lightbox figcaption span { color: var(--muted); margin-left: 10px; font-size: 12px; }
.lightbox button { position: absolute; background: none; border: 0; font: inherit; font-size: 34px; line-height: 1; color: var(--ink); cursor: pointer; padding: 14px; opacity: .6; }
.lightbox button:hover, .lightbox button:focus-visible { opacity: 1; }
.lb-close { top: 8px; right: 12px; }
.lb-prev { left: 6px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 6px; top: 50%; transform: translateY(-50%); }
@media (max-width: 600px) {
  .lightbox figure { max-width: 100vw; }
  .lb-prev, .lb-next { top: auto; bottom: 8px; transform: none; }
  h1 { font-size: 22px; }
  .site-header { padding-top: 24px; padding-bottom: 20px; }
}

/* Passwortseite (wird vom Worker ausgeliefert) */
.gate { max-width: 360px; margin: 40px auto; text-align: center; }
.gate input { font: inherit; width: 100%; padding: 10px 12px; border: 1px solid #ccc; border-radius: 3px; margin: 10px 0; }
.gate button { font: inherit; padding: 9px 22px; border: 1px solid var(--accent); background: var(--accent); color: #fff; border-radius: 3px; cursor: pointer; }
.gate .error { color: #b04040; }