:root {
  --bg: #0e1117;
  --panel: #161b22;
  --border: #262c36;
  --text: #e6edf3;
  --muted: #9aa7b4;
  --accent: #5fd987;
  --accent-dim: #143b22;
  --star: #ffc857;
  --err-bg: #3b1414;
  --err-text: #ff6b6b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.banner { padding: 0.6rem 1rem; font-size: 0.9rem; }
.banner-error { background: var(--err-bg); color: var(--err-text); }

.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 1.25rem 1.5rem 0.5rem;
}
.topbar h1 { margin: 0; font-size: 1.5rem; }
.stats { color: var(--muted); font-size: 0.85rem; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0 1.5rem 1rem;
  border-bottom: 1px solid var(--border);
}

.tabs { display: flex; gap: 0.5rem; }
.tab {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  cursor: pointer;
  font-size: 0.85rem;
}
.tab.active { background: var(--accent-dim); color: var(--accent); border-color: var(--accent); }

.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.filters select, .filters input {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.35rem 0.6rem;
  font-size: 0.85rem;
}
.filters button {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  font-size: 0.85rem;
}

.new-badge {
  margin: 0.75rem 1.5rem 0;
  padding: 0.4rem 0.8rem;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 6px;
  font-size: 0.85rem;
  display: inline-block;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  padding: 1.25rem 1.5rem 3rem;
}

.empty { padding: 2rem 1.5rem; color: var(--muted); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.card:hover { border-color: var(--accent); }

.card-top { display: flex; justify-content: space-between; align-items: center; }
.score { font-weight: 700; color: var(--accent); }
.star-btn {
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  color: var(--muted);
  line-height: 1;
}
.star-btn.starred { color: var(--star); }

.card-title { margin: 0; font-size: 1.05rem; }
.card-meta { color: var(--muted); font-size: 0.8rem; }
.card-summary { font-size: 0.9rem; color: var(--text); margin: 0; }
.card-footer { color: var(--muted); font-size: 0.75rem; }

.delay-picker { display: flex; gap: 0.4rem; margin-top: 0.4rem; }
.delay-picker button {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.25rem 0.6rem;
  cursor: pointer;
  font-size: 0.8rem;
}
.delay-picker button:hover { border-color: var(--accent); }

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: flex-end;
  z-index: 10;
}
.overlay[hidden] { display: none; }
.new-badge[hidden] { display: none; }
.delay-picker[hidden] { display: none; }
.detail-panel {
  background: var(--panel);
  width: min(520px, 100%);
  height: 100%;
  overflow-y: auto;
  padding: 1.5rem;
  position: relative;
}
.close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.2rem;
  cursor: pointer;
}
.detail-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  padding-right: 2rem;
}
.detail-header h2 { margin: 0; }
.detail-star {
  align-self: flex-start;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  background: none;
  color: var(--muted);
  cursor: pointer;
}
.detail-star.starred { color: var(--star); border-color: var(--star); }
.detail-meta { color: var(--muted); font-size: 0.85rem; margin-bottom: 0.75rem; }
.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.5rem 0; }
.tag {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  font-size: 0.75rem;
  color: var(--muted);
}
.mentions { list-style: none; padding: 0; margin: 0.5rem 0 0; display: flex; flex-direction: column; gap: 0.75rem; }
.mentions li { border-top: 1px solid var(--border); padding-top: 0.6rem; font-size: 0.85rem; }
.mention-source { color: var(--accent); font-weight: 600; }
.mention-snippet { color: var(--muted); margin-top: 0.3rem; }

@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; padding: 1rem; }
  .topbar, .toolbar { padding-left: 1rem; padding-right: 1rem; }
  .detail-panel { width: 100%; }
  .filters { width: 100%; }
  .filters select, .filters input, .filters button { flex: 1 1 auto; }
}