:root {
  --bg: #f6f7f9; --card: #fff; --text: #1d2330; --muted: #5d6677;
  --border: #e2e5ea; --accent: #2f6fed;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #12151b; --card: #1b2029; --text: #e6e9ef; --muted: #9aa3b2; --border: #2a313d; --accent: #7aa2ff; }
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.5;
  display: flex; flex-direction: column; min-height: 100vh;
}
header, main, footer { width: 100%; max-width: 960px; margin: 0 auto; padding: 0 1.25rem; }
header { padding-top: 3rem; padding-bottom: 1.5rem; }
h1 { margin: 0; font-size: 2rem; letter-spacing: -0.02em; }
.tagline { margin: 0.25rem 0 0; color: var(--muted); }
main { flex: 1; }
#filter {
  width: 100%; padding: 0.7rem 0.9rem; font: inherit; color: inherit;
  background: var(--card); border: 1px solid var(--border); border-radius: 10px; margin-bottom: 1.25rem;
}
#filter:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.grid { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.card {
  display: flex; gap: 0.85rem; height: 100%; padding: 1rem 1.1rem; text-decoration: none; color: inherit;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  transition: border-color .15s, transform .15s;
}
.card:hover, .card:focus-visible { border-color: var(--accent); transform: translateY(-2px); outline: none; }
.icon { font-size: 1.6rem; line-height: 1; }
.name { margin: 0; font-size: 1.05rem; font-weight: 600; }
.desc { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.92rem; }
.host { margin: 0.4rem 0 0; color: var(--accent); font-size: 0.8rem; word-break: break-all; }
.empty { color: var(--muted); }
footer { padding-top: 2rem; padding-bottom: 2rem; color: var(--muted); font-size: 0.85rem; }