:root {
  --bg: #0f141b;
  --panel: #161d27;
  --panel2: #1c2532;
  --border: #2a3646;
  --text: #dbe4ee;
  --muted: #8a99ac;
  --accent: #4da3ff;
  --error: #ff5d6c;
  --warning: #ffb84d;
  --info: #4dc3ff;
  --ok: #43d99a;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font: 13px/1.45 "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg); color: var(--text);
  display: flex; flex-direction: column;
}
.muted { color: var(--muted); }
.hidden { display: none !important; }

/* ---------- top bar ---------- */
#topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 8px 14px; background: var(--panel); border-bottom: 1px solid var(--border);
}
.brand { font-size: 17px; font-weight: 700; letter-spacing: .3px; }
.brand span { color: var(--accent); }
#dropzone {
  position: relative; display: flex; align-items: center; gap: 8px;
  border: 1.5px dashed var(--border); border-radius: 8px;
  padding: 6px 14px; color: var(--muted); cursor: pointer; transition: .15s;
}
#dropzone:hover, #dropzone.drag { border-color: var(--accent); color: var(--accent); background: rgba(77,163,255,.06); }
#dropzone input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
#stats { margin-left: auto; display: flex; gap: 14px; color: var(--muted); font-size: 12px; }
#stats b { color: var(--text); font-weight: 600; }
#stats .e b { color: var(--error); } #stats .w b { color: var(--warning); } #stats .i b { color: var(--info); }

/* ---------- layout ---------- */
#main { flex: 1; display: flex; min-height: 0; }
#sidebar {
  width: 290px; min-width: 290px; background: var(--panel);
  border-right: 1px solid var(--border); display: flex; flex-direction: column;
}
.tabs { display: flex; border-bottom: 1px solid var(--border); }
.tab {
  flex: 1; background: none; border: none; color: var(--muted);
  padding: 10px; cursor: pointer; font-size: 13px; border-bottom: 2px solid transparent;
}
.tab.active { color: var(--text); border-bottom-color: var(--accent); }
.badge {
  background: var(--error); color: #fff; border-radius: 10px;
  padding: 0 7px; font-size: 11px; margin-left: 4px;
}
.badge:empty { display: none; }
#tableSearch {
  margin: 10px; padding: 7px 10px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--panel2); color: var(--text); outline: none;
}
#tableSearch:focus { border-color: var(--accent); }
#sideContent { flex: 1; overflow-y: auto; }

#tableList { list-style: none; margin: 0; padding: 0 6px 12px; }
#tableList li {
  padding: 6px 10px; border-radius: 6px; cursor: pointer;
  display: flex; align-items: center; gap: 8px;
}
#tableList li:hover { background: var(--panel2); }
#tableList li.selected { background: rgba(77,163,255,.14); }
#tableList .tid { color: var(--muted); font-size: 11px; min-width: 40px; }
#tableList .tname { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.dot.error { background: var(--error); } .dot.warning { background: var(--warning); }
.dot.info { background: var(--info); } .dot.ok { background: var(--ok); }

#findingsPanel { padding: 0 6px 12px; }
#findingsFilters { display: flex; gap: 6px; align-items: center; padding: 4px 6px 10px; flex-wrap: wrap; }
.sev-chip {
  border: 1px solid var(--border); background: var(--panel2); color: var(--muted);
  border-radius: 12px; padding: 2px 10px; font-size: 11px; cursor: pointer; opacity: .45;
}
.sev-chip.on { opacity: 1; }
.sev-chip.error.on { color: var(--error); border-color: var(--error); }
.sev-chip.warning.on { color: var(--warning); border-color: var(--warning); }
.sev-chip.info.on { color: var(--info); border-color: var(--info); }
#catFilter {
  background: var(--panel2); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 3px 6px; font-size: 11px;
}
#findingsList { list-style: none; margin: 0; padding: 0; }
#findingsList li {
  padding: 7px 10px; border-radius: 6px; cursor: pointer; margin-bottom: 4px;
  background: var(--panel2); border-left: 3px solid transparent;
}
#findingsList li:hover { background: #232f40; }
#findingsList li.error { border-left-color: var(--error); }
#findingsList li.warning { border-left-color: var(--warning); }
#findingsList li.info { border-left-color: var(--info); }
#findingsList .frule { font-size: 10px; color: var(--muted); font-weight: 700; letter-spacing: .4px; }
#findingsList .fmsg { font-size: 12px; }

/* ---------- canvas ---------- */
#canvasWrap { flex: 1; position: relative; min-width: 0; }
#cy { position: absolute; inset: 0; }
#cyToolbar {
  position: absolute; z-index: 5; top: 10px; left: 10px; display: flex; gap: 6px;
}
#cyToolbar button {
  background: rgba(22,29,39,.92); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 5px 12px; cursor: pointer; font-size: 12px;
}
#cyToolbar button:hover { border-color: var(--accent); color: var(--accent); }
#cyToolbar button.toggle.on { background: rgba(77,163,255,.18); border-color: var(--accent); color: var(--accent); }
#emptyState {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; text-align: center; padding: 30px;
}
#emptyState h2 { color: var(--muted); font-weight: 600; }
#emptyState code { background: var(--panel2); padding: 1px 6px; border-radius: 4px; }

/* ---------- details panel ---------- */
#details {
  width: 380px; min-width: 380px; background: var(--panel);
  border-left: 1px solid var(--border); overflow-y: auto; padding: 14px;
}
#detailsHeader { position: relative; }
#detailsHeader h2 { margin: 0 30px 2px 0; font-size: 17px; }
#dClose {
  position: absolute; top: 0; right: 0; background: none; border: none;
  color: var(--muted); font-size: 20px; cursor: pointer;
}
#dClose:hover { color: var(--text); }
#details h3 {
  font-size: 11px; text-transform: uppercase; letter-spacing: .8px;
  color: var(--muted); margin: 18px 0 6px; border-bottom: 1px solid var(--border); padding-bottom: 4px;
}
#dIssues .issue {
  border-radius: 6px; padding: 6px 9px; margin-top: 6px; font-size: 12px; background: var(--panel2);
  border-left: 3px solid;
}
#dIssues .issue.error { border-left-color: var(--error); }
#dIssues .issue.warning { border-left-color: var(--warning); }
#dIssues .issue.info { border-left-color: var(--info); }
#dIssues .irule { font-size: 10px; color: var(--muted); font-weight: 700; }
#dFields { width: 100%; border-collapse: collapse; font-size: 12px; }
#dFields td { padding: 4px 6px; border-bottom: 1px solid var(--border); vertical-align: top; }
#dFields tr:hover td { background: var(--panel2); }
#dFields .fno { color: var(--muted); width: 34px; text-align: right; }
#dFields .ftype { color: var(--accent); white-space: nowrap; }
.pill {
  display: inline-block; font-size: 10px; border-radius: 8px; padding: 0 6px;
  margin-left: 4px; border: 1px solid var(--border); color: var(--muted);
}
.pill.pk { color: var(--ok); border-color: var(--ok); }
.pill.flow { color: var(--info); border-color: var(--info); }
.pill.opt { color: var(--warning); border-color: var(--warning); }
.pill.obs { color: var(--error); border-color: var(--error); }
#dKeys, #dRelations { list-style: none; margin: 0; padding: 0; font-size: 12px; }
#dKeys li, #dRelations li { padding: 5px 8px; background: var(--panel2); border-radius: 6px; margin-bottom: 5px; }
#dRelations .rel-arrow { color: var(--accent); }
#dRelations .rel-missing { color: var(--error); }
#dRelations .rel-cond { color: var(--warning); font-size: 11px; display: block; }