/* brain-v2 shared structure. Every color comes from CSS variables the skin sets
   per theme - this file owns layout only. */
* { box-sizing: border-box; margin: 0; }
html, body { height: 100%; overflow: hidden; }
body {
  font-family: var(--font, 'Outfit'), system-ui, sans-serif;
  background: var(--bg); color: var(--ink);
}
#brain-canvas { position: fixed; inset: 0; cursor: grab; }
#brain-canvas:active { cursor: grabbing; }

/* splash */
#brain-splash { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: var(--bg); z-index: 90; }
.sp-inner { text-align: center; }
.sp-pulse { width: 22px; height: 22px; border-radius: 6px; background: var(--accent); margin: 0 auto 14px; animation: sp 1.1s ease-in-out infinite; }
@keyframes sp { 0%, 100% { transform: scale(0.75) rotate(0deg); opacity: .55; } 50% { transform: scale(1.15) rotate(45deg); opacity: 1; } }
.sp-text { font-size: 13px; color: var(--muted); letter-spacing: 2px; text-transform: uppercase; }

/* tooltip */
#brain-tip { position: fixed; z-index: 60; pointer-events: none; opacity: 0; transition: opacity .12s;
  background: var(--tip-bg); border: 1px solid var(--border); border-radius: 10px; padding: 9px 12px;
  font-size: 12px; max-width: 250px; box-shadow: var(--shadow); color: var(--ink); }
#brain-tip .tmut { color: var(--muted); font-size: 11px; margin-top: 2px; }
#brain-tip .tfaint { color: var(--faint); font-size: 10px; margin-top: 3px; }
.badge { display: inline-block; font-size: 9.5px; padding: 1px 7px; border-radius: 20px; border: 1px solid; margin-top: 5px; margin-right: 4px; letter-spacing: .3px; }

/* HUD top-left */
#brain-hud { position: fixed; top: 22px; left: 26px; z-index: 20; pointer-events: none; max-width: 400px; }
.hud-brand { display: flex; align-items: center; gap: 10px; }
.hud-rubric { font-weight: 900; font-size: 21px; letter-spacing: 4px; }
.hud-product { font-weight: 200; font-size: 21px; letter-spacing: 4px; color: var(--muted); }
.hud-skin { font-weight: 600; font-size: 10.5px; letter-spacing: 2.2px; color: var(--accent); margin-top: 7px; }
.hud-title { font-weight: 700; font-size: 17px; letter-spacing: 2.5px; }
.hud-tag { color: var(--muted); font-size: 12px; margin-top: 4px; max-width: 46ch; line-height: 1.45; }
.hud-stats { color: var(--faint); font-size: 11px; margin-top: 8px; }
.hud-stats b { color: var(--accent); font-weight: 600; }
.hud-fps { color: var(--faint); font-size: 10px; margin-top: 3px; letter-spacing: 1px; }

/* right control panel */
#brain-panel { position: fixed; top: 18px; right: 18px; z-index: 30; width: 252px; max-height: calc(100vh - 36px);
  overflow-y: auto; padding: 14px; border-radius: 16px; background: var(--panel); border: 1px solid var(--border); box-shadow: var(--shadow); }
#brain-panel::-webkit-scrollbar, #brain-legend::-webkit-scrollbar, .card-neigh::-webkit-scrollbar, .v-body::-webkit-scrollbar { width: 6px; }
#brain-panel::-webkit-scrollbar-thumb, .v-body::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
.p-search { position: relative; }
#brain-search { width: 100%; padding: 7px 10px; font-size: 12px; font-family: inherit; color: var(--ink);
  background: var(--input-bg); border: 1px solid var(--border); border-radius: 9px; outline: none; }
#brain-search:focus { border-color: var(--accent); }
#brain-results { position: absolute; left: 0; right: 0; top: 36px; z-index: 40; display: none; max-height: 320px; overflow-y: auto;
  background: var(--tip-bg); border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow); }
.res { display: flex; align-items: center; gap: 7px; padding: 7px 9px; cursor: pointer; font-size: 11.5px; }
.res:hover { background: var(--hover); }
.res .r-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.res .r-path { color: var(--faint); font-size: 9.5px; margin-left: auto; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 46%; }
.res-none { padding: 9px; font-size: 11px; color: var(--muted); }
.dot { width: 9px; height: 9px; border-radius: 3px; flex-shrink: 0; }
.p-sub { font-size: 9.5px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--faint); font-weight: 600; margin: 12px 0 4px; }
.p-sub.row { display: flex; justify-content: space-between; align-items: center; }
.mini { font-size: 9.5px; padding: 2px 8px; border-radius: 6px; background: var(--input-bg); color: var(--muted);
  border: 1px solid var(--border); cursor: pointer; font-family: inherit; }
.seg { display: flex; gap: 4px; }
.seg button { flex: 1; padding: 5px 2px; font-size: 10.5px; font-weight: 600; font-family: inherit; border-radius: 8px;
  border: 1px solid var(--border); background: var(--input-bg); color: var(--muted); cursor: pointer; transition: all .15s; }
.seg button.on { background: var(--seg-on-bg); color: var(--seg-on-ink); border-color: var(--seg-on-bg); }
.sl { margin: 7px 0; }
.sl-head { display: flex; justify-content: space-between; font-size: 10.5px; color: var(--muted); margin-bottom: 1px; }
.sl-val { color: var(--accent); font-variant-numeric: tabular-nums; }
.sl input { width: 100%; height: 3px; accent-color: var(--accent); cursor: pointer; }
.chk { display: flex; align-items: center; gap: 7px; font-size: 11.5px; color: var(--muted); margin-top: 8px; cursor: pointer; }
.chk input { accent-color: var(--accent); }
.clr { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 11.5px; color: var(--muted); padding: 2.5px 0; }
.clr input[type=color] { width: 34px; height: 20px; padding: 0; border: 1px solid var(--border); border-radius: 5px; background: none; cursor: pointer; }
.clr input[type=color]::-webkit-color-swatch-wrapper { padding: 1.5px; }
.clr input[type=color]::-webkit-color-swatch { border: none; border-radius: 3px; }
.p-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: 12px; }
.act { padding: 6px 9px; font-size: 10.5px; font-weight: 600; font-family: inherit; border-radius: 8px;
  border: 1px solid var(--border); background: var(--input-bg); color: var(--ink); cursor: pointer; transition: all .15s; }
.act:hover { border-color: var(--accent); color: var(--accent); }

/* legend bottom-left */
#brain-legend { position: fixed; left: 26px; bottom: 22px; z-index: 20; width: 218px; max-height: 46vh; overflow-y: auto;
  padding: 12px 14px; border-radius: 14px; background: var(--panel); border: 1px solid var(--border); box-shadow: var(--shadow); }
.lg-sub { font-size: 9px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--faint); font-weight: 600; margin: 8px 0 4px; }
.lg-sub:first-child { margin-top: 0; }
.lg-hint { text-transform: none; letter-spacing: 0; color: var(--faint); font-weight: 400; font-size: 9.5px; }
.lg-row { display: flex; align-items: center; gap: 8px; font-size: 11.5px; padding: 2.5px 0; cursor: pointer; transition: opacity .15s; }
.lg-row.off { opacity: .3; }
.lg-n { margin-left: auto; color: var(--faint); font-size: 10px; }
.dot-diamond { transform: rotate(45deg); border-radius: 2px; }
.dot-hex { border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%; }
.dot-ringdot { border-radius: 50%; }
.lg-hermes { margin-top: 10px; padding-top: 9px; border-top: 1px solid var(--border); font-size: 11.5px; cursor: pointer; display: block; }
.lg-hermes .dot { display: inline-block; vertical-align: -1px; margin-right: 4px; }
.lg-hermes b { color: #58abf5; }

/* detail card */
#brain-card { position: fixed; top: 120px; left: 26px; z-index: 30; width: 292px; padding: 14px;
  border-radius: 16px; background: var(--panel); border: 1px solid var(--border); box-shadow: var(--shadow); }
.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.card-title { font-weight: 600; font-size: 14px; line-height: 1.25; word-break: break-all; }
.card-badges { margin-top: 4px; }
#card-close { background: none; border: none; color: var(--faint); font-size: 19px; cursor: pointer; line-height: 1; }
#card-close:hover { color: var(--ink); }
.card-stats { color: var(--muted); font-size: 11px; margin-top: 7px; }
.card-desc { color: var(--muted); font-size: 11.5px; margin-top: 6px; line-height: 1.45; }
.card-path { color: var(--faint); font-size: 10px; margin-top: 5px; word-break: break-all; }
.card-actions { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 10px; }
.card-sub { font-size: 9px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--faint); font-weight: 600; margin: 11px 0 3px; }
.card-neigh { max-height: 190px; overflow-y: auto; }
.nrow { display: flex; align-items: center; gap: 7px; padding: 3px 0; cursor: pointer; }
.nrow .nlab { font-size: 11.5px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nrow:hover .nlab { color: var(--ink); }
.nrow .nkind { margin-left: auto; font-size: 9px; color: var(--faint); flex-shrink: 0; }

/* viewer drawer */
#brain-viewer { position: fixed; top: 0; right: -580px; width: 560px; max-width: 92vw; height: 100vh; z-index: 50;
  background: var(--viewer-bg); border-left: 1px solid var(--border); box-shadow: var(--shadow); transition: right .25s ease; display: flex; flex-direction: column; }
#brain-viewer.open { right: 0; }
.v-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.v-title { font-weight: 700; font-size: 15px; word-break: break-all; }
.v-path { color: var(--faint); font-size: 10.5px; margin-top: 2px; word-break: break-all; }
.v-btns { display: flex; gap: 6px; flex-shrink: 0; }
.v-close { font-size: 15px; padding: 6px 11px; }
.v-body { flex: 1; overflow-y: auto; padding: 20px 26px; }
.v-loading { color: var(--muted); font-size: 12.5px; }
.code-body { font-family: ui-monospace, monospace; font-size: 11.5px; line-height: 1.6; white-space: pre-wrap; word-break: break-word; color: var(--ink); }

/* rendered markdown */
.md-body { font-size: 13.5px; line-height: 1.65; }
.md-body h1, .md-body h2, .md-body h3, .md-body h4 { margin: 18px 0 8px; line-height: 1.3; }
.md-body h1 { font-size: 21px; } .md-body h2 { font-size: 17px; } .md-body h3 { font-size: 14.5px; }
.md-body h1:first-child { margin-top: 0; }
.md-body p, .md-body ul, .md-body ol { margin: 8px 0; }
.md-body ul, .md-body ol { padding-left: 22px; }
.md-body li { margin: 3px 0; }
.md-body a { color: var(--accent); text-decoration: none; border-bottom: 1px dotted var(--accent); }
.md-body code { font-family: ui-monospace, monospace; font-size: .88em; background: var(--input-bg); padding: 1px 5px; border-radius: 4px; }
.md-body pre { background: var(--input-bg); border: 1px solid var(--border); border-radius: 8px; padding: 12px; overflow-x: auto; margin: 10px 0; }
.md-body pre code { background: none; padding: 0; }
.md-body blockquote { border-left: 3px solid var(--accent); padding-left: 12px; color: var(--muted); margin: 10px 0; }
.md-body table { border-collapse: collapse; margin: 10px 0; font-size: 12px; display: block; overflow-x: auto; }
.md-body th, .md-body td { border: 1px solid var(--border); padding: 5px 9px; text-align: left; }
.md-body th { background: var(--input-bg); }
.md-body hr { border: none; border-top: 1px solid var(--border); margin: 14px 0; }
.md-body img { max-width: 100%; }

/* toast */
#brain-toast { position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(70px); z-index: 70;
  background: var(--seg-on-bg); color: var(--seg-on-ink); font-size: 12px; font-weight: 600; padding: 9px 18px;
  border-radius: 22px; box-shadow: var(--shadow); transition: transform .22s ease; pointer-events: none; }
#brain-toast.show { transform: translateX(-50%) translateY(0); }

@media (max-width: 900px) {
  #brain-legend { display: none; }
  #brain-panel { width: 218px; }
  #brain-card { width: 250px; }
}