/* --- Grundlayout --- */
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f8f8f8 url("../general_pictures/log_100_water.jpg") repeat;
  color: #000;
  line-height: 1.6;
}

main, header, footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem;
  background: rgba(255,255,255,0.9);
}

/* --- Navigation --- */
nav {
  background: #333;
  padding: 0.5rem;
  text-align: center;
}

nav a {
  color: #fff;
  margin: 0 1rem;
  text-decoration: none;
  font-weight: 500;
}

nav a:hover {
  text-decoration: underline;
}

/* --- Tabellen --- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 3rem;
}

table th, table td {
  border: 1px solid #999;
  padding: 0.5rem;
}

table th {
  background: #eee;
}

/* --- Bildergalerie --- */
.gallery {
  text-align: center;
  margin: 2rem 0;
}

.gallery img {
  max-width: 100%;
  height: auto;
  margin: 0.3rem;
}

/* --- YouTube Videos (16:9) --- */
.video-wrapper {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: 1.5rem auto;
  padding-bottom: 56.25%;
  height: 0;
}

.video-wrapper iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* --- Footer --- */
footer {
  text-align: center;
  font-size: 0.85rem;
  color: #555;
  margin-bottom: 3rem;
}