:root {
  --navy-950: #040a20;
  --navy-900: #071238;
  --gold: #ffc531;
  --text: #e6ecff;
  --muted: #9aa3c0;
  --line: rgba(170, 190, 255, 0.16);
  --sans: 'Archivo', 'Helvetica Neue', Helvetica, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  min-height: 100vh;
  background:
    repeating-linear-gradient(0deg, rgba(160, 180, 255, 0.04) 0 1px, transparent 1px 90px),
    repeating-linear-gradient(90deg, rgba(160, 180, 255, 0.04) 0 1px, transparent 1px 90px),
    var(--navy-950);
  color: var(--text);
  font-family: var(--sans);
  padding: clamp(24px, 5vw, 64px);
}
.head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: clamp(28px, 4vw, 48px);
}
.kicker {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; letter-spacing: -0.02em; }
.sub { max-width: 42ch; color: var(--muted); line-height: 1.55; font-size: 0.95rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: clamp(20px, 3vw, 32px);
}
.card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--navy-900);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.card:hover, .card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5);
}
.card:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.frame {
  display: block;
  aspect-ratio: 16 / 9;
  background: var(--navy-950);
  border-bottom: 1px solid var(--line);
}
.frame iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  pointer-events: none;
}
.meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
}
.meta h2 { font-size: 0.98rem; font-weight: 600; line-height: 1.35; }
.open {
  flex-shrink: 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--gold);
  opacity: 0;
  transition: opacity 0.18s ease;
}
.card:hover .open, .card:focus-visible .open { opacity: 1; }

.empty { color: var(--muted); line-height: 1.6; }
.empty code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--navy-900);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 2px 6px;
}
.foot {
  display: flex;
  gap: 10px;
  margin-top: clamp(36px, 6vw, 64px);
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--muted);
}
.foot a { color: var(--muted); }
.foot a:hover, .foot a:focus-visible { color: var(--gold); }