:root {
  --bg-color: #121212;
  --text-color: #ffffff;
  --accent-color: #ff8c42;
  --accent-hover: #ff7020;
  --tile-bg: #292929;
  --tile-hover: #2a2a2a;
  --muted: rgba(255,255,255,.72);
  --line: rgba(255,255,255,.10);
  --shadow: 0 10px 30px rgba(0,0,0,.45);
  --radius: 16px;
  --max: 1100px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: radial-gradient(900px 500px at 25% -10%, rgba(255,140,66,.10), transparent 60%),
              radial-gradient(900px 500px at 90% 0%, rgba(255,210,127,.08), transparent 55%),
              var(--bg-color);
  color: var(--text-color);
}

/* Header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.2rem;
  background: var(--tile-bg);
  border-bottom: 1px solid #333;
  gap: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-color);
}

.brand-dot {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--accent-color);
  box-shadow: 0 0 0 6px rgba(255,140,66,.12);
}

.brand-name {
  font-weight: 700;
  letter-spacing: .2px;
}

.nav { display: inline-flex; gap: 12px; flex-wrap: wrap; }
.nav-link {
  color: rgba(255,255,255,.85);
  text-decoration: none;
  font-size: .95rem;
}
.nav-link:hover { color: var(--accent-color); }

/* Layout */
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.4rem 1.2rem 2.4rem;
}

.hero {
  background: rgba(41,41,41,.75);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.4rem;
}

.hero h1 {
  margin: 0 0 .5rem;
  color: var(--accent-color);
  letter-spacing: .2px;
}

.hero p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

/* Grid + cards */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}

.card {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px;
  background: var(--tile-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}

.card:hover {
  transform: translateY(-4px);
  background: var(--tile-hover);
  border-color: rgba(255,140,66,.28);
}

.card-img {
  background: #1b1b1b;
  height: 100%;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-body {
  padding: 12px 12px 12px 0;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.card-title {
  margin: 0;
  font-size: 1.1rem;
  letter-spacing: .2px;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,140,66,.25);
  background: rgba(255,140,66,.10);
  color: rgba(255,255,255,.9);
  font-size: .85rem;
}

.card-meta {
  margin: .4rem 0 .35rem;
  color: var(--muted);
  font-size: .95rem;
}

.card-desc {
  margin: 0;
  color: rgba(255,255,255,.85);
  line-height: 1.5;
}

.card-cta {
  margin-top: .7rem;
  color: var(--accent-color);
  font-weight: 700;
}

/* Placeholder */
.card.placeholder {
  grid-template-columns: 1fr;
  padding: 1.2rem;
  text-align: center;
  cursor: default;
}

.placeholder-icon {
  font-size: 1.6rem;
  margin-bottom: .2rem;
}

/* Footer */
.footer {
  text-align: center;
  padding: 1.4rem 1rem;
  border-top: 1px solid #333;
  background: var(--tile-bg);
  color: rgba(255,255,255,.75);
}
.footer a {
  color: rgba(255,255,255,.85);
  text-decoration: none;
}
.footer a:hover { color: var(--accent-color); }

/* Desktop */
@media (min-width: 860px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .card {
    grid-template-columns: 150px 1fr;
  }
  .card-body {
    padding: 14px 14px 14px 0;
  }
}

/* Small */
@media (max-width: 420px) {
  .card {
    grid-template-columns: 96px 1fr;
  }
}



/* --- Filters / Tabs --- */
.filters{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 0 0 1.2rem;
}

.filter-btn{
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(41,41,41,.75);
  color: rgba(255,255,255,.86);
  padding: .55rem .85rem;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: var(--shadow);
  font-weight: 650;
  font-size: .92rem;
  transition: transform .16s ease, border-color .16s ease, background .16s ease;
}

.filter-btn:hover{
  transform: translateY(-2px);
  border-color: rgba(255,140,66,.30);
}

.filter-btn.active{
  border-color: rgba(255,140,66,.55);
  background: rgba(255,140,66,.12);
  color: rgba(255,255,255,.95);
}

/* Chip Varianten */
.chip.chip-school{
  border: 1px solid rgba(255,210,127,.28);
  background: rgba(255,210,127,.10);
}

/* Placeholder neutral (damit nicht wie Link wirkt) */
.card.placeholder{
  user-select: none;
}