:root{
  --bg:#0b0f14;
  --panel:#101826;
  --text:#e7eef8;
  --muted:#a8b3c7;
  --border:#22304a;
  --accent:#7aa2ff;
  --shadow: 0 12px 30px rgba(0,0,0,.35);
}

*{ box-sizing:border-box; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 700px at 20% 0%, #15203a 0%, var(--bg) 55%);
  color:var(--text);
}

.wrap{
  max-width: 1050px;
  margin: 0 auto;
  padding: 0 18px;
}

.header{
  position: sticky;
  top:0;
  backdrop-filter: blur(10px);
  background: rgba(11,15,20,.8);
  border-bottom: 1px solid var(--border);
}

.header .wrap{ padding: 18px; }

h1{ margin:0; font-size: 26px; }
.sub{ margin: 6px 0 14px; color: var(--muted); }

.controls{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

#search{
  flex:1;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #101826;
  color: var(--text);
}

.chips{ display:flex; gap:8px; flex-wrap:wrap; }

.chip{
  border: 1px solid var(--border);
  background: #17243a;
  color: var(--text);
  padding: 8px 12px;
  border-radius: 999px;
  cursor:pointer;
}
.chip.is-active{
  background:#243a63;
  border-color: var(--accent);
}

.meta{
  margin-top: 12px;
  display:flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
}

.actions button{
  border: 1px solid var(--border);
  background: #101826;
  color: var(--text);
  padding: 6px 10px;
  border-radius: 8px;
  cursor:pointer;
}

.results{
  padding: 18px 0 40px;
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 12px;
}

.card{
  background: #101826;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow:hidden;
}

.cardHeader{
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  display:flex;
  justify-content: space-between;
  gap:10px;
}

.term{ margin:0; font-size: 15px; }

.badge{
  font-size: 11px;
  border: 1px solid var(--border);
  padding: 3px 8px;
  border-radius: 999px;
  color: var(--muted);
}

.cardBody{ padding: 12px 14px; }
.desc{ margin:0; font-size: 14px; line-height:1.4; }

details{
  border-top: 1px dashed var(--border);
  padding: 10px 14px;
}

summary{ cursor:pointer; color: var(--muted); }

.empty{ color: var(--muted); margin: 30px 0; }

.footer{
  border-top: 1px solid var(--border);
  padding: 16px 0 26px;
  color: var(--muted);
}