* { box-sizing: border-box; margin: 0; }
:root {
  --bg: #0e1116; --panel: #161b23; --panel2: #1d242f; --border: #2a3342;
  --text: #e6ebf2; --muted: #8b98ab; --accent: #6c8cff; --accent2: #45d0a1;
  --danger: #e5687a; --warn: #e0b34f;
}
html, body { height: 100%; }
body {
  background: var(--bg); color: var(--text);
  font: 15px/1.55 -apple-system, "Segoe UI", Roboto, sans-serif;
}
.hidden { display: none !important; }
a { color: var(--accent); text-decoration: none; }

.btn {
  border: 1px solid var(--border); background: var(--panel2); color: var(--text);
  border-radius: 8px; padding: 8px 14px; cursor: pointer; font-size: 14px;
  display: inline-flex; align-items: center; gap: 6px;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #0b1020; font-weight: 600; }
.btn.ghost:hover, .btn:hover { filter: brightness(1.15); }
.linkbtn { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 13px; }
.linkbtn:hover { color: var(--text); }

/* login */
.login { display: flex; height: 100vh; align-items: center; justify-content: center; }
.login-box { text-align: center; background: var(--panel); border: 1px solid var(--border);
  border-radius: 16px; padding: 48px 64px; }
.login-box h1 { margin-bottom: 8px; }
.login-box p { color: var(--muted); margin-bottom: 24px; }

/* layout */
#app { display: flex; height: 100vh; }
.sidebar {
  width: 250px; flex-shrink: 0; background: var(--panel); border-right: 1px solid var(--border);
  padding: 18px 14px; display: flex; flex-direction: column; gap: 14px; overflow-y: auto;
}
.brand { font-size: 18px; font-weight: 700; padding: 2px 6px; }
#search {
  background: var(--panel2); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 8px 12px; width: 100%; font-size: 14px;
}
nav { display: flex; flex-direction: column; gap: 2px; }
.navlink { color: var(--text); padding: 7px 10px; border-radius: 8px; font-size: 14px; }
.navlink:hover { background: var(--panel2); }
.navlink.active { background: var(--panel2); font-weight: 600; }
.tags-head { color: var(--muted); font-size: 11px; letter-spacing: 1.5px; padding: 0 6px; }
.taglist { display: flex; flex-direction: column; gap: 1px; }
.tagrow { display: flex; justify-content: space-between; padding: 4px 10px; border-radius: 6px;
  color: var(--text); font-size: 13px; cursor: pointer; }
.tagrow:hover, .tagrow.active { background: var(--panel2); }
.tagrow .n { color: var(--muted); }
.sidebar-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; }
.pill { font-size: 12px; color: var(--muted); }

main { flex: 1; overflow-y: auto; padding: 22px 28px; position: relative; }
.addbar { display: flex; gap: 10px; margin-bottom: 18px; }
.addbar input[type=url] {
  flex: 1; background: var(--panel); border: 1px solid var(--border); color: var(--text);
  border-radius: 10px; padding: 10px 14px; font-size: 15px;
}
.banner { background: var(--panel2); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 14px; margin-bottom: 14px; font-size: 14px; }
.banner.err { border-color: var(--danger); color: var(--danger); }

.filterbar { margin-bottom: 14px; color: var(--muted); font-size: 14px; }
.filterbar b { color: var(--text); }

/* cards grid */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 14px; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 16px; cursor: pointer; display: flex; flex-direction: column; gap: 8px;
  transition: border-color .15s;
}
.card:hover { border-color: var(--accent); }
.card .type { font-size: 12px; color: var(--muted); display: flex; justify-content: space-between; }
.card h3 { font-size: 15px; line-height: 1.35; }
.card .snip { color: var(--muted); font-size: 13px; display: -webkit-box;
  -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.card .tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: auto; }
.tagchip { background: var(--panel2); border-radius: 20px; padding: 1px 9px; font-size: 12px; color: var(--accent); }
.badge { font-size: 11px; border-radius: 6px; padding: 1px 7px; }
.badge.pending { background: #3a3320; color: var(--warn); }
.badge.error { background: #3a2026; color: var(--danger); }
.badge.needs-ai { background: #203238; color: #6fc7dd; }
.empty { color: var(--muted); text-align: center; margin-top: 80px; }

/* detail */
.detail { position: fixed; inset: 0; background: rgba(5,8,12,.65); display: flex; justify-content: flex-end; z-index: 50; }
.detail-panel {
  width: min(720px, 92vw); background: var(--panel); border-left: 1px solid var(--border);
  height: 100%; overflow-y: auto; padding: 28px 32px; position: relative;
}
.close { position: absolute; top: 14px; right: 16px; background: none; border: none;
  color: var(--muted); font-size: 18px; cursor: pointer; }
.detail-panel h2 { margin: 4px 0 4px; line-height: 1.3; }
.meta { color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.detail-panel h4 { margin: 18px 0 6px; color: var(--accent2); font-size: 13px; letter-spacing: 1px; }
.detail-panel ul { padding-left: 20px; }
.detail-panel li { margin: 4px 0; }
.summary { font-size: 15px; }
.related-item { display: block; padding: 6px 10px; border: 1px solid var(--border);
  border-radius: 8px; margin: 5px 0; color: var(--text); font-size: 14px; }
.related-item:hover { border-color: var(--accent); }
.related-item .sim { color: var(--muted); font-size: 12px; float: right; }
.related-item .reason { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }
.tagchip.ent { color: var(--warn); }
.btn.small { padding: 3px 10px; font-size: 13px; margin-left: 10px; }
.digest p { margin: 8px 0; }
.digest h4 { color: var(--accent2); margin: 18px 0 6px; }
.digest ul { padding-left: 20px; }
.digest li { margin: 4px 0; }
.cite { font-size: 12px; }
.content-block { background: var(--panel2); border-radius: 8px; padding: 12px 14px;
  font-size: 13px; color: var(--muted); white-space: pre-wrap; max-height: 300px; overflow-y: auto; }
.detail-actions { display: flex; gap: 8px; margin-top: 22px; }
.btn.danger { border-color: var(--danger); color: var(--danger); background: none; }
.tag-edit { width: 100%; background: var(--panel2); border: 1px solid var(--border);
  color: var(--text); border-radius: 8px; padding: 7px 10px; font-size: 13px; }

/* graph */
#view-graph { position: relative; height: calc(100vh - 120px); }
#graphcanvas { width: 100%; height: 100%; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); }
.graphtip { position: absolute; background: var(--panel2); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 10px; font-size: 13px; pointer-events: none; max-width: 260px; }

/* import */
.import-box { max-width: 640px; }
.import-box ol { margin: 12px 0 20px 20px; color: var(--muted); }
.import-box li { margin: 6px 0; }
.dropzone {
  border: 2px dashed var(--border); border-radius: 14px; padding: 48px; text-align: center;
  color: var(--muted); cursor: pointer;
}
.dropzone.over { border-color: var(--accent); color: var(--text); }
#importresult { margin-top: 16px; font-size: 14px; }

@media (max-width: 760px) {
  .sidebar { display: none; }
  main { padding: 14px; }
}