html,
body {
  margin: 0;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #05070b;
  color: #ddd;
}
body {
  background:
    linear-gradient(
      rgba(0,0,0,.75),
      rgba(0,0,0,.75)
    ),
    url('../images/background_gpl.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
@media (max-width: 768px) {
  body {
    background-attachment: scroll;
  }
}
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: rgba(0,0,0,.6);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header img {
  height: 60px;
}
.header-left {
  display: flex;
  align-items: center;
  gap: 20px;
}
.header-buttons {
  display: inline-block;
  padding: 8px 16px;
  background: #1e4f7d;
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-size: .9rem;
  transition: .2s;
}
.header-buttons:hover {
  background: #2a6aa8;
}
.hero {
  margin-top: -60px;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.hero-inner {
  max-width: 1200px;
}
.hero-logo {
  width: 960px;
  max-width: 80%;
}
.hero h1 {
  font-size: 3rem;
  margin: 20px 0;
}
.hero p {
  font-size: 1.2rem;
  color: #bbb;
}
.hero-buttons {
  margin-top: 30px;
}
.button {
  display: inline-block;
  margin: 10px;
  padding: 12px 24px;
  background: #1e4f7d;
  color: white;
  text-decoration: none;
  border-radius: 6px;
  transition: .2s;
}
.button:hover {
  background: #2a6aa8;
}
section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 40px;
  scroll-margin-top: 110px;
}
section h2 {
  margin-bottom: 30px;
}
.jump-up,
.jump-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  background: #1e4f7d;
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-size: 1rem;
  line-height: 1;
  margin-right: 10px;
  vertical-align: middle;
  transition: .2s;
}
.jump-up:hover,
.jump-back:hover {
  background: #2a6aa8;
}
.articles-grid {
  display: grid;
  grid-template-columns:
    repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.card {
  display: block;
  padding: 20px;
  background-color: rgba(20,20,25,.65);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 8px;
  text-decoration: none;
  color: #ddd;
  transition: .2s;
}
.card-gpl {
  background-image: url('/assets/images/gpl-logo-outline.png');
  background-repeat: no-repeat;
  background-position: bottom -10px right -12px;
  background-size: 120px;

}
.card-akademie {
  background-image: url('/assets/images/elite-logo-outline.png');
  background-repeat: no-repeat;
  background-position: bottom -7px right -7px;
  background-size: 90px;

}
.card:hover {
  background-color: rgba(255,255,255,.08);
  transform: translateY(-2px);
}
.card-pinned {
  background-color: rgba(45,25,25,.65);
  border: 1px solid rgba(200,80,80,.25);
}
.card-pinned:hover {
  background-color: rgba(55,28,28,.75);
}
.article-container {
  max-width: 1000px;
  margin: 40px auto;
  padding: 40px;
  background: rgba(0,0,0,.55);
  border-radius: 10px;
}
.article-container a {
  color: #6bb8ff;
}
.article-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 20px auto;
  border-radius: 8px;
}
.article-container hr {
  border: none;
  border-top: 1px solid rgba(255,255,255,.15);
  margin: 30px 0;
}
.article-container details {
  margin: 20px 0;
  padding: 12px 16px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 8px;
}
.article-container details summary {
  cursor: pointer;
  font-weight: bold;
  color: #6bb8ff;
}
.article-container pre {
  background: rgba(0,0,0,.4);
  padding: 16px;
  border-radius: 8px;
  overflow-x: auto;
}
.article-container pre code {
  font-family: 'Courier New', monospace;
  color: #ddd;
}
.video-embed {
  position: relative;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  margin: 20px auto;
}
.video-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 8px;
}
footer {
  text-align: center;
  padding: 40px;
  color: #888;
}