:root {
  --bg: #edf1f7; --panel: #f7f9fc; --card: #ffffff;
  --ink: #101828; --muted: #5b6b7f; --line: #d8e0ea;
  --accent: #e0355f; --accent-2: #0f7fa8;
  --info: #22b8cf; --watch: #f0a202; --urgent: #e03131;
  --radius: 10px;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body {
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink); background: var(--bg);
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
h2 { margin: 6px 0 4px; font-size: 20px; }
h3 { margin: 0 0 8px; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }

/* ---------- top bar ---------- */
.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 8px 16px; background: var(--card); border-bottom: 1px solid var(--line);
  position: relative; z-index: 20;
}
.logo { font-size: 19px; font-weight: 800; color: var(--ink); letter-spacing: -.02em; }
.logo span { color: var(--accent); }
.topnav { display: flex; gap: 14px; margin-left: auto; }
.topnav a { color: var(--muted); font-weight: 600; font-size: 14px; }
.topnav a:hover { color: var(--ink); text-decoration: none; }

.search-wrap { position: relative; flex: 1; max-width: 520px; }
#search-input {
  width: 100%; padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--panel); font-size: 14px; outline: none;
}
#search-input:focus { border-color: var(--accent-2); background: #fff; }
.search-results {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 12px 32px rgb(16 24 40 / .16); overflow: hidden; max-height: 60vh; overflow-y: auto;
}
.sr-item { display: flex; justify-content: space-between; gap: 10px; padding: 8px 12px; cursor: pointer; }
.sr-item.active, .sr-item:hover { background: var(--bg); }
.sr-name { font-weight: 600; }
.sr-type { color: var(--muted); font-size: 12px; white-space: nowrap; }
.sr-empty { padding: 10px 12px; color: var(--muted); }

/* ---------- explorer layout ---------- */
.explorer { display: flex; flex-direction: column; height: 100vh; overflow: hidden; }
.explorer-main { flex: 1; display: grid; grid-template-columns: 240px 1fr 340px; min-height: 0; }
.controls {
  background: var(--card); border-right: 1px solid var(--line);
  padding: 12px; overflow-y: auto; display: flex; flex-direction: column; gap: 16px;
}
#viewport { position: relative; min-width: 0; }
#viewport canvas { display: block; }
.side { background: var(--card); border-left: 1px solid var(--line); display: flex; flex-direction: column; min-height: 0; }
.tabs { display: flex; border-bottom: 1px solid var(--line); }
.tab { flex: 1; padding: 10px; background: none; border: 0; font-weight: 700; color: var(--muted); cursor: pointer; }
.tab.active { color: var(--ink); box-shadow: inset 0 -2px 0 var(--accent); }
.tab-panel { padding: 14px; overflow-y: auto; flex: 1; min-height: 0; }

.layer { display: flex; align-items: center; gap: 8px; padding: 4px 0; font-size: 14px; cursor: pointer; }
.layer .count { margin-left: auto; color: var(--muted); font-size: 12px; }
.layer .dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.radio { display: block; padding: 3px 0; font-size: 14px; cursor: pointer; }
.cut-row { display: flex; gap: 6px; margin-bottom: 6px; }
.cut-row select { flex: 1; }
.row-btns { display: flex; gap: 6px; flex-wrap: wrap; }
input[type="range"] { width: 100%; accent-color: var(--accent); }
select { padding: 6px 8px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }

.btn {
  display: inline-block; padding: 7px 12px; border-radius: 8px; border: 1px solid var(--accent);
  background: var(--accent); color: #fff; font-weight: 700; font-size: 13px; cursor: pointer;
}
.btn:hover { text-decoration: none; filter: brightness(1.05); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.small { padding: 5px 9px; font-size: 12px; }
.btn.ghost.on { border-color: var(--accent); color: var(--accent); }

/* ---------- info panel ---------- */
.badge {
  display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 700;
  background: color-mix(in srgb, var(--accent-2) 12%, white); color: var(--accent-2);
}
.badge.sev-watch { background: color-mix(in srgb, var(--watch) 16%, white); color: #9a6a00; }
.badge.sev-urgent { background: color-mix(in srgb, var(--urgent) 12%, white); color: var(--urgent); }
.stats { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 4px; margin: 12px 0; }
.actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.src { font-size: 12px; color: var(--muted); }

/* ---------- chat ---------- */
.chat-log { display: flex; flex-direction: column; gap: 8px; }
.chat-msg { padding: 8px 11px; border-radius: 12px; max-width: 92%; white-space: pre-wrap; }
.chat-msg.ai { background: var(--bg); align-self: flex-start; }
.chat-msg.user { background: var(--accent); color: #fff; align-self: flex-end; }
.chat-suggest { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0; }
.chip { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 5px 10px; font-size: 12.5px; cursor: pointer; }
.chip:hover { border-color: var(--accent-2); color: var(--accent-2); }
.chat-form { display: flex; gap: 6px; margin-top: auto; padding-top: 10px; }
.chat-form input { flex: 1; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; }

/* ---------- overlays & footer ---------- */
.overlay {
  position: fixed; inset: 0; background: var(--bg); z-index: 50;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px;
}
.spinner { width: 34px; height: 34px; border: 3px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.site-footer { padding: 8px 16px; font-size: 12px; color: var(--muted); background: var(--card); border-top: 1px solid var(--line); }
.site-footer p { margin: 0; }

/* ---------- content pages ---------- */
.page { max-width: 1100px; margin: 0 auto; padding: 24px 16px 60px; }
.page h1 { font-size: 28px; margin: 8px 0 12px; }
.crumbs { font-size: 13px; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; margin-top: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.card h4 { margin: 0 0 4px; font-size: 15px; }
.card p { margin: 0; font-size: 13px; color: var(--muted); }
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin: 14px 0; }
.filters input, .filters select { padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.filters input[type="search"] { flex: 1; min-width: 220px; }
.pill { display: inline-block; margin: 2px 4px 2px 0; padding: 2px 9px; border-radius: 999px; background: var(--bg); font-size: 12.5px; }
.two-col { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }
ul.flat { list-style: none; padding: 0; margin: 8px 0; columns: 2; }
ul.flat li { break-inside: avoid; padding: 2px 0; }

@media (max-width: 1000px) {
  .explorer-main { grid-template-columns: 1fr; grid-template-rows: 1fr auto; }
  .controls { display: none; }
  .side { position: absolute; right: 0; top: 0; bottom: 0; width: min(360px, 92vw); box-shadow: -8px 0 24px rgb(0 0 0 / .12); }
}