/* ---------- Grundlagen ---------- */
:root {
  --bg: #000;
  --fg: #fff;
  --muted: #8a8a8a;
  --gap: 10px;
  --pad: 16px;
  --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { background: none; border: 0; color: inherit; cursor: pointer; font: inherit; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px var(--pad);
  background: var(--bg);
  transition: transform .7s ease;
}
.site-header.hidden { transform: translateY(-100%); }

.logo {
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: .01em;
}

.burger { width: 26px; height: 18px; position: relative; }
.burger span {
  position: absolute; left: 0; right: 0; height: 1px; background: var(--fg);
  transition: transform .3s ease, opacity .3s ease;
}
.burger span:nth-child(1) { top: 0; }
.burger span:nth-child(2) { top: 8px; }
.burger span:nth-child(3) { top: 16px; }
.menu-open .burger span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-open .burger span:nth-child(2) { opacity: 0; }
.menu-open .burger span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Menü ---------- */
.menu {
  position: fixed; inset: 0; z-index: 15;
  display: flex; flex-direction: column; justify-content: center;
  gap: 18px;
  padding: 0 var(--pad);
  background: var(--bg);
  font-size: clamp(32px, 6vw, 56px);
  opacity: 0; pointer-events: none;
  transition: opacity .4s ease;
}
.menu-open .menu { opacity: 1; pointer-events: auto; }
.menu a:hover { color: var(--muted); }

/* ---------- Projekt-Raster ---------- */
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  padding: 64px var(--gap) var(--gap);
}

.tile {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #111;
}
/* leicht versetzte Bildausschnitte wie auf moritzhofstetter.ch */
.tile:nth-child(4n+2) { margin: 14px 0 0 0; }
.tile:nth-child(4n+3) { margin: 0 14px 0 14px; }

.tile img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.2s ease, opacity .6s ease;
  opacity: 0;
}
.tile img.loaded { opacity: 1; }
.tile:hover img { transform: scale(1.03); }

.tile-label {
  position: absolute; left: 12px; bottom: 10px;
  font-size: 15px;
  opacity: 0;
  transition: opacity .4s ease;
  text-shadow: 0 0 12px rgba(0,0,0,.6);
}
.tile:hover .tile-label,
.tile:focus-visible .tile-label { opacity: 1; }

@media (max-width: 700px) {
  .grid { grid-template-columns: 1fr; }
  .tile:nth-child(n) { margin: 0; }
  .tile-label { opacity: 1; }
}

/* ---------- About & Kontakt ---------- */
.about, .contact {
  padding: 120px var(--pad) 0;
  max-width: 1100px;
}

.lead {
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.3;
  max-width: 28ch;
}

.people {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
  margin-top: 72px;
}
.person h2 { font-weight: 300; font-size: 22px; }
.person p { color: var(--muted); margin-top: 4px; }
.person a { display: inline-block; margin-top: 10px; border-bottom: 1px solid var(--muted); }

.mail {
  font-size: clamp(24px, 4vw, 44px);
  border-bottom: 1px solid var(--muted);
}

.site-footer {
  padding: 120px var(--pad) 24px;
  color: var(--muted);
  font-size: 13px;
}

/* ---------- Projekt-Ansicht ---------- */
.viewer {
  position: fixed; inset: 0; z-index: 30;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity .4s ease;
}
.viewer.open { opacity: 1; pointer-events: auto; }

.viewer-stage {
  width: min(88vw, calc(80vh * 16 / 9));
  aspect-ratio: 16 / 9;
}
.viewer-stage img,
.viewer-stage iframe {
  width: 100%; height: 100%;
  object-fit: contain;
  border: 0; display: block;
}

.viewer-caption {
  position: absolute; left: var(--pad); bottom: 20px;
  font-size: 15px;
}
.viewer-caption span { color: var(--muted); margin-left: 10px; }

.viewer-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  font-size: 28px; padding: 16px;
  opacity: .7;
}
.viewer-nav:hover { opacity: 1; }
.viewer-nav.prev { left: 0; }
.viewer-nav.next { right: 0; }

/* Raster-Symbol zum Schliessen, wie auf moritzhofstetter.ch */
.viewer-close {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%);
  display: grid; grid-template-columns: repeat(3, 5px); gap: 3px;
  padding: 8px;
}
.viewer-close span { width: 5px; height: 5px; background: var(--fg); }

/* ungerade Anzahl: letztes Bild über die ganze Breite, im Cinemascope-Format */
@media (min-width: 701px) {
  .tile:last-child:nth-child(odd) { grid-column: 1 / -1; aspect-ratio: 2.39 / 1; margin: 0; }
}