/* Bambu Capital — Diligence Data Room. Brand: royal #1F2ED6, ink #0E1542,
   gold #C6A86B, Montserrat (display) + Inter (UI). Matches Bambu OS portals. */
:root{
  --royal-700:#1826B0; --royal:#1F2ED6; --royal-400:#4654E6; --blue-300:#8A93F0; --blue-200:#C5CAF8;
  --indigo-900:#0A1133; --indigo-800:#0E1542; --ink:#0E1542; --text:#1A1E2C; --muted:#5A6072; --muted-2:#878D9E;
  --gold:#C6A86B; --paper:#FFFFFF; --paper-2:#F4F5FB; --paper-3:#EDEFF7; --line:#E4E7F2; --line-2:#D2D7EC;
  --ok:#1F9D5B; --ok-bg:#E7F6EE; --warn:#C6892B; --warn-bg:#FBF1DF; --danger:#D64550; --danger-bg:#FBE9EA;
  --mont:"Montserrat",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --inter:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --radius:10px; --radius-sm:7px; --shadow:0 1px 2px rgba(14,21,66,.05),0 8px 24px -16px rgba(14,21,66,.18);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--inter);color:var(--text);background:var(--paper-2);-webkit-font-smoothing:antialiased;line-height:1.5}
a{color:var(--royal);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{font-family:var(--mont);color:var(--ink);letter-spacing:-.01em;margin:0}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* brand mark */
.brand{display:flex;align-items:center;gap:11px}
/* Brand mark = the canonical Bambu Capital panda, line-art, on a TRANSPARENT
   background (matches the live site — no royal box). Rendered as a CSS mask of the
   panda shape so its colour adapts per surface: default --ink for light cards
   (login / Ask Panda panel / empty states), white on dark surfaces (sidebar, PDF
   bar, Ask Panda button) via the overrides below. font-size:0 hides any text node.
   Cascades to every .bmark instance (admin + LP portal) at all sizes. */
.bmark{width:34px;height:34px;flex:none;font-size:0;background-color:var(--ink);
  -webkit-mask:url('/assets/img/bambu-panda-mark.png') center/contain no-repeat;
          mask:url('/assets/img/bambu-panda-mark.png') center/contain no-repeat}
.pside-brand .bmark,.pdf-bar .bmark{background-color:#fff}   /* dark surfaces → white panda */
.brand__txt{display:flex;flex-direction:column;line-height:1.1}
.brand__txt b{font-family:var(--mont);font-size:14px;color:var(--ink);font-weight:700}
.brand__txt span{font-size:10.5px;color:var(--muted);letter-spacing:.04em}

/* top bar */
.topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:16px;height:60px;padding:0 22px;
  background:#fff;border-bottom:1px solid var(--line)}
.topbar .grow{flex:1}
.topbar .who{font-size:12.5px;color:var(--muted);text-align:right;line-height:1.25}
.topbar .who b{display:block;color:var(--ink);font-size:13px}
.badge{display:inline-flex;align-items:center;gap:5px;font-family:var(--mont);font-size:10px;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase;border-radius:100px;padding:3px 9px}
.badge.confid{color:var(--gold);background:rgba(198,168,107,.13);border:1px solid rgba(198,168,107,.4)}
.badge.new{color:#fff;background:var(--royal)}
.badge.ok{color:var(--ok);background:var(--ok-bg);border:1px solid #BFE4D2}
.badge.warn{color:var(--warn);background:var(--warn-bg);border:1px solid #EFD9A6}
.badge.muted{color:var(--muted);background:var(--paper-3);border:1px solid var(--line)}
.badge.danger{color:var(--danger);background:var(--danger-bg);border:1px solid #F0C9C9}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;font-family:var(--mont);font-weight:600;
  font-size:13px;border-radius:var(--radius-sm);padding:8px 14px;border:1px solid var(--line-2);background:#fff;color:var(--ink);
  cursor:pointer;transition:.15s;white-space:nowrap;text-decoration:none}
.btn:hover{border-color:var(--royal);color:var(--royal);text-decoration:none}
.btn--primary{background:var(--royal);color:#fff;border-color:var(--royal)}
.btn--primary:hover{background:var(--royal-700);border-color:var(--royal-700);color:#fff}
.btn--sm{padding:5px 10px;font-size:12px}
.btn--ghost{background:transparent;border-color:transparent;color:var(--muted)}
.btn--ghost:hover{background:var(--paper-3);color:var(--ink)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn--danger{color:var(--danger);border-color:#F0C9C9}
.btn--danger:hover{background:var(--danger);color:#fff;border-color:var(--danger)}

/* cards / panels */
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.panel__head{display:flex;align-items:center;gap:12px;padding:15px 18px;border-bottom:1px solid var(--line)}
.panel__head h2{font-size:15px}
.panel__head .grow{flex:1}
.panel__body{padding:18px}
.muted{color:var(--muted)}
.tiny{font-size:11.5px}

/* forms */
label.field{display:block;margin-bottom:13px}
label.field>span{display:block;font-size:12px;font-weight:600;color:var(--ink);margin-bottom:5px;font-family:var(--mont)}
input,select,textarea{width:100%;font-family:var(--inter);font-size:14px;color:var(--text);background:#fff;
  border:1px solid var(--line-2);border-radius:var(--radius-sm);padding:9px 11px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--royal);box-shadow:0 0 0 3px rgba(31,46,214,.12)}
.checkrow{display:flex;align-items:flex-start;gap:9px;font-size:13px;color:var(--text)}
.checkrow input{width:auto;margin-top:2px}
.err{color:var(--danger);font-size:13px;margin:8px 0}
.note{font-size:12.5px;color:var(--muted)}

/* tables */
table{width:100%;border-collapse:collapse;font-size:13px}
th{font-family:var(--mont);font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);
  text-align:left;padding:9px 12px;border-bottom:1px solid var(--line)}
td{padding:10px 12px;border-bottom:1px solid var(--paper-3);vertical-align:middle}
tr:hover td{background:var(--paper-2)}
.num{text-align:right;font-variant-numeric:tabular-nums}

/* auth screens */
.authwrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:radial-gradient(1100px 650px at 50% -10%,#1a2a8f 0%,var(--indigo-800) 45%,var(--indigo-900) 100%)}
.authcard{width:100%;max-width:440px;background:#fff;border-radius:16px;box-shadow:0 40px 80px -30px rgba(0,0,0,.6);padding:34px 32px}
.authcard .brand{justify-content:center;margin-bottom:8px}
.authcard h1{font-size:23px;text-align:center;margin:18px 0 6px}
.authcard p.lead{text-align:center;color:var(--muted);font-size:13.5px;margin:0 0 22px}
.authfoot{text-align:center;margin-top:18px;font-size:12px;color:var(--blue-200)}

/* file-type chips */
.ext{display:inline-flex;align-items:center;justify-content:center;width:34px;height:22px;border-radius:5px;font-family:var(--mont);
  font-size:9.5px;font-weight:700;color:#fff;letter-spacing:.03em;flex:none}
.ext.pdf{background:#C23B3B}.ext.xlsx,.ext.xlsm,.ext.xls,.ext.csv{background:#18895E}
.ext.docx,.ext.doc{background:#2B5CC2}.ext.pptx,.ext.ppt{background:#C85B16}.ext.other{background:#5A6072}

/* layout: sidebar + main */
.shell{display:grid;grid-template-columns:280px 1fr;min-height:calc(100vh - 60px)}
.side{background:#fff;border-right:1px solid var(--line);padding:16px 12px;overflow:auto}
.side h3{font-family:var(--mont);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:6px 8px 8px}
.navitem{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:var(--radius-sm);color:var(--ink);font-size:13.5px;
  font-weight:500;cursor:pointer;margin-bottom:2px}
.navitem:hover{background:var(--paper-2);text-decoration:none}
.navitem.active{background:rgba(31,46,214,.09);color:var(--royal);font-weight:600}
.navitem .count{margin-left:auto;font-size:11px;color:var(--muted)}
.main{padding:22px 26px;overflow:auto}
.page-head{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.page-head h1{font-size:21px}
.page-head .grow{flex:1}

/* folder tree */
.tree{font-size:13.5px}
.tree .fold{margin-bottom:2px}
.tree .fold>.row{display:flex;align-items:center;gap:7px;padding:7px 8px;border-radius:var(--radius-sm);cursor:pointer;color:var(--ink);font-weight:600;font-family:var(--mont);font-size:12.5px}
.tree .fold>.row:hover{background:var(--paper-2)}
.tree .fold>.row.sel{background:rgba(31,46,214,.09);color:var(--royal)}
.tree .fold .row .cc{margin-left:auto;font-size:11px;color:var(--muted);font-weight:500}
.tree .all{font-family:var(--mont)}

.docrow{display:flex;align-items:center;gap:12px}
.docrow .nm{font-weight:500;color:var(--ink)}
.empty{text-align:center;color:var(--muted);padding:60px 20px}
.empty .bmark{margin:0 auto 14px;width:46px;height:46px;font-size:24px;opacity:.6}

.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}
.stat .k{font-size:11px;font-family:var(--mont);text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.stat .v{font-family:var(--mont);font-weight:700;font-size:30px;color:var(--ink);margin-top:4px;letter-spacing:-.02em}
.stat .v small{font-size:14px;color:var(--muted);font-weight:600}

.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:11px 18px;
  border-radius:var(--radius-sm);font-size:13px;box-shadow:0 18px 40px -16px rgba(0,0,0,.5);z-index:90;opacity:0;transition:.2s;pointer-events:none}
.toast.show{opacity:1}
.toast.bad{background:var(--danger)}

.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:18px;flex-wrap:wrap}
.tab{padding:9px 14px;font-family:var(--mont);font-size:13px;font-weight:600;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent}
.tab:hover{color:var(--ink)}
.tab.active{color:var(--royal);border-bottom-color:var(--royal)}

.row-actions{display:flex;gap:6px;justify-content:flex-end}
.hide{display:none!important}
.split{display:grid;grid-template-columns:1fr 360px;gap:18px}
@media(max-width:1000px){.shell{grid-template-columns:1fr}.side{display:none}.split{grid-template-columns:1fr}}

/* ═══════════ Bambu portal standard shell (see /PORTAL_UI_STANDARD.md) ═══════════
   Dark indigo sidebar (brand → sectioned nav → switch-portal → identity footer)
   + light canvas with a bold title row. Matches CRM/internal/investor portals. */
.portal-shell{display:grid;grid-template-columns:270px 1fr;min-height:100vh}
.pside{display:flex;flex-direction:column;background:linear-gradient(180deg,#101A52 0%,var(--indigo-800) 30%,var(--indigo-900) 100%);
  color:#C5CAF8;padding:18px 14px 14px;position:sticky;top:0;height:100vh;overflow-y:auto}
.pside-brand{display:flex;align-items:center;gap:11px;padding:4px 8px 16px;border-bottom:1px solid rgba(138,147,240,.16);margin-bottom:14px}
/* (box-shadow removed — the mark is now a transparent masked panda, not a boxed tile) */
.pside-brand b{font-family:var(--mont);font-size:14.5px;font-weight:800;color:#fff;letter-spacing:.02em;display:block;line-height:1.15}
.pside-brand span{font-family:var(--mont);font-size:9.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-300)}
.pside-label{font-family:var(--mont);font-size:10px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-300);
  padding:14px 10px 7px}
.pside-item{display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:9px;cursor:pointer;
  font-family:var(--inter);font-size:13.5px;font-weight:500;color:#C5CAF8;margin-bottom:2px;text-decoration:none;transition:.13s}
.pside-item svg{width:16px;height:16px;stroke:currentColor;flex:none;opacity:.85}
.pside-item:hover{background:rgba(138,147,240,.13);color:#fff;text-decoration:none}
.pside-item.active{background:var(--royal);color:#fff;font-weight:600;box-shadow:0 8px 18px -9px rgba(31,46,214,.85)}
.pside-item .pcount{margin-left:auto;font-family:var(--mont);font-size:10.5px;font-weight:700;background:rgba(138,147,240,.18);
  color:#DEE2FB;border-radius:100px;padding:1px 8px}
.pside-item.active .pcount{background:rgba(255,255,255,.22);color:#fff}
.pside-foot{margin-top:auto;padding-top:12px;border-top:1px solid rgba(138,147,240,.16)}
.pside-link{display:flex;align-items:center;gap:9px;padding:8px 11px;border:1px dashed rgba(138,147,240,.35);border-radius:9px;
  background:transparent;font-size:12.5px;color:#C5CAF8;text-decoration:none;margin-bottom:7px;transition:.13s;cursor:pointer}
.pside-link:hover{border-style:solid;color:#fff;text-decoration:none;background:rgba(138,147,240,.1)}
.pside-user{display:flex;align-items:center;gap:10px;padding:10px 8px 2px}
.pside-user .avatar{width:32px;height:32px;border-radius:50%;background:var(--royal);color:#fff;display:flex;align-items:center;
  justify-content:center;font-family:var(--mont);font-weight:700;font-size:12.5px;flex:none}
.pside-user b{display:block;font-size:13px;color:#fff;font-weight:600;line-height:1.2}
.pside-user span{font-size:11px;color:var(--blue-300)}
.pside-user .pout{margin-left:auto;background:none;border:0;color:var(--blue-300);cursor:pointer;font-size:12px;
  font-family:var(--inter);padding:6px}
.pside-user .pout:hover{color:#fff;text-decoration:underline}
.pmain{background:var(--paper-2);min-height:100vh;overflow-x:hidden}
.ptop{display:flex;align-items:center;gap:14px;padding:26px 30px 0}
.ptop h1{font-family:var(--mont);font-size:27px;font-weight:800;letter-spacing:-.02em;color:var(--ink);margin:0}
.ptop .psub{font-size:13.5px;color:var(--muted)}
.pbody{padding:18px 30px 40px}
@media (max-width:1000px){.portal-shell{grid-template-columns:1fr}.pside{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center}
  .pside-foot{margin-top:0}.pside-label{width:100%}}

.drop{border:2px dashed var(--line-2);border-radius:var(--radius);padding:28px;text-align:center;color:var(--muted);transition:.15s;background:var(--paper-2)}
.drop.over{border-color:var(--royal);background:rgba(31,46,214,.05);color:var(--royal)}
.progress{height:8px;background:var(--paper-3);border-radius:100px;overflow:hidden;margin:12px 0}
.progress>i{display:block;height:100%;background:var(--royal);width:0;transition:width .2s}
.log{font-family:var(--mono,ui-monospace,monospace);font-size:11.5px;background:var(--indigo-900);color:#C5CAF8;border-radius:var(--radius-sm);
  padding:12px 14px;max-height:230px;overflow:auto;white-space:pre-wrap;line-height:1.5}

/* ═══════════════ Diligence Data Room — LP room (Ansarada parity) ═══════════════ */

/* sidebar nav items as anchors + "coming soon" */
.pside-item.is-soon{opacity:.62;cursor:default}
.pside-item.is-soon:hover{background:rgba(138,147,240,.07);color:#C5CAF8}
.pcount.soon{background:rgba(198,168,107,.22);color:var(--gold);font-size:9px}

/* fund / deal switcher */
.fund-switch{margin:2px 6px 4px;width:calc(100% - 12px);background:rgba(255,255,255,.06);color:#fff;
  border:1px solid rgba(138,147,240,.3);border-radius:8px;padding:8px 10px;font-family:var(--mont);font-size:12.5px;font-weight:600}
.fund-switch:focus{outline:none;border-color:var(--blue-300);box-shadow:0 0 0 3px rgba(138,147,240,.18)}
.fund-switch option{color:#1A1E2C}

/* numbered collapsible tree (dark sidebar) */
.pside-tree{margin-top:2px;max-height:38vh;overflow-y:auto;padding-right:2px}
.tree-toggle-all{float:right;font-family:var(--inter);font-size:10px;font-weight:600;letter-spacing:0;text-transform:none;
  color:var(--blue-300);cursor:pointer}
.tree-toggle-all:hover{color:#fff;text-decoration:underline}
.tree-node{user-select:none}
.tree-folder{display:flex;align-items:center;gap:6px;padding:6px 8px;border-radius:7px;cursor:pointer;
  font-size:12.5px;font-weight:500;color:#C5CAF8;transition:.1s}
.tree-folder:hover{background:rgba(138,147,240,.13);color:#fff}
.tree-folder.active{background:var(--royal);color:#fff;font-weight:600}
.tree-arrow{width:12px;text-align:center;color:var(--blue-300);font-size:10px;flex:none}
.tree-folder.active .tree-arrow{color:#fff}
.tree-num{font-family:var(--mont);font-size:10px;font-weight:700;color:var(--blue-300);font-variant-numeric:tabular-nums;flex:none}
.tree-folder.active .tree-num{color:rgba(255,255,255,.85)}
.tree-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tree-cc{font-size:10px;color:var(--blue-300);font-variant-numeric:tabular-nums;flex:none}
.tree-folder.active .tree-cc{color:rgba(255,255,255,.8)}

/* top bar refinements */
.ptop-titles{min-width:0}
.ptop .grow{flex:1}
.searchbox{position:relative;display:flex;align-items:center}
.searchbox svg{position:absolute;left:11px;width:15px;height:15px;stroke:var(--muted);pointer-events:none}
.searchbox input{padding-left:32px;width:280px;font-size:13px}
.search-results{position:absolute;top:calc(100% + 6px);right:0;width:380px;max-height:360px;overflow-y:auto;background:#fff;
  border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);z-index:50;padding:5px}
.sr-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;cursor:pointer}
.sr-item:hover{background:var(--paper-2)}
.sr-meta{min-width:0}.sr-meta b{display:block;font-size:13px;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sr-meta span{font-size:11px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block}
.sr-empty{padding:14px;text-align:center;color:var(--muted);font-size:12.5px}

/* document index sections */
.sec{margin-bottom:22px}
.sec-head{display:flex;align-items:center;gap:10px;margin:18px 0 10px}
.sec-head h2{font-family:var(--mont);font-size:16px;font-weight:700;color:var(--ink)}
.sec-num{font-family:var(--mont);font-weight:800;color:var(--royal);font-variant-numeric:tabular-nums;margin-right:6px}
.doc-panel{margin-bottom:12px;overflow:hidden}
.doc-panel table{font-size:13px}

/* user menu (sidebar foot) */
.pside-user .pout{font-size:14px;line-height:1}
.user-menu{margin:6px 6px 0;background:rgba(255,255,255,.05);border:1px solid rgba(138,147,240,.22);border-radius:9px;padding:4px;
  display:flex;flex-direction:column}
.user-menu-item{background:none;border:0;text-align:left;color:#C5CAF8;font-family:var(--inter);font-size:12.5px;
  padding:8px 10px;border-radius:6px;cursor:pointer}
.user-menu-item:hover{background:rgba(138,147,240,.16);color:#fff}

/* welcome / terms rich content */
.welcome-panel{max-width:820px}
.welcome-html,.terms-body{font-size:14px;line-height:1.65;color:var(--text)}
.welcome-html h2,.terms-body h2{font-family:var(--mont);font-size:18px;color:var(--ink);margin:6px 0 10px}
.welcome-html p,.terms-body p{margin:0 0 12px}
.welcome-html a{color:var(--royal)}
.terms-body{max-height:320px;overflow-y:auto;background:var(--paper-2);border:1px solid var(--line);border-radius:10px;
  padding:16px 18px;margin-top:14px;text-align:left}
.authcard--wide{max-width:620px}

/* key-value rows (profile) */
.kv{display:flex;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px solid var(--paper-3);font-size:13.5px}
.kv:last-child{border-bottom:0}
.kv span{color:var(--muted)}.kv b{color:var(--ink);font-weight:600}

/* bulk download modal */
.modal-overlay{position:fixed;inset:0;z-index:110;background:rgba(14,21,66,.6);display:flex;align-items:center;justify-content:center;padding:24px}
.modal-card{background:#fff;border-radius:14px;box-shadow:0 40px 80px -30px rgba(0,0,0,.5);padding:26px 28px;width:100%;max-width:420px;text-align:center}
.modal-card h3{font-family:var(--mont);font-size:16px;color:var(--ink);margin-bottom:14px}

/* ═══════════════ Q&A (LP-side) ═══════════════ */
.pcount.ai{background:rgba(198,168,107,.22);color:var(--gold);font-size:9px;letter-spacing:.04em}
.qa-subj{font-weight:600;color:var(--ink);display:flex;align-items:center;gap:8px}
.qa-prev{margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:520px}
.qa-doctag{display:inline-flex;align-items:center;font-family:var(--mont);font-size:10.5px;font-weight:700;color:var(--royal);
  background:rgba(31,46,214,.08);border:1px solid rgba(31,46,214,.16);border-radius:6px;padding:2px 7px;max-width:140px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.qa-row:hover td{background:var(--paper-2)}
.qa-docref{display:flex;align-items:center;gap:11px;background:var(--paper-2);border:1px solid var(--line);border-radius:9px;
  padding:10px 12px;margin-bottom:14px;font-size:13px}
.qa-docref b{color:var(--ink)} .qa-docref>div{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.qa-thread{display:flex;flex-direction:column;gap:12px}
.qa-bubble{max-width:78%;border-radius:12px;padding:11px 14px;font-size:13.5px;line-height:1.55}
.qa-bubble__meta{font-family:var(--mont);font-size:10.5px;font-weight:600;letter-spacing:.02em;margin-bottom:5px;opacity:.85}
.qa-me{align-self:flex-end;background:var(--royal);color:#fff;border-bottom-right-radius:4px}
.qa-me .qa-bubble__meta{color:#DEE2FB}
.qa-them{align-self:flex-start;background:var(--paper-2);border:1px solid var(--line);color:var(--text);border-bottom-left-radius:4px}
.qa-them .qa-bubble__meta{color:var(--royal)}

/* ═══════════════ Ask Panda (AI split panel) ═══════════════ */
.ask-wrap{display:grid;grid-template-columns:1fr 300px;gap:18px;align-items:start}
.ask-main{display:flex;flex-direction:column;height:calc(100vh - 190px);min-height:420px;overflow:hidden}
.ask-tabs{display:flex;align-items:center;gap:4px;padding:10px 14px;border-bottom:1px solid var(--line);flex:none}
.ask-tabs .grow{flex:1}
.ask-tab{padding:7px 14px;font-family:var(--mont);font-size:12.5px;font-weight:600;color:var(--muted);cursor:pointer;
  border-radius:7px;transition:.13s}
.ask-tab:hover{color:var(--ink);background:var(--paper-2)}
.ask-tab.active{color:var(--royal);background:rgba(31,46,214,.09)}
.ask-transcript{flex:1;overflow-y:auto;padding:18px 18px 8px;display:flex;flex-direction:column;gap:14px}
.ask-empty{margin:auto;text-align:center;color:var(--muted);max-width:380px;padding:30px 10px}
.ask-empty .bmark{margin:0 auto 14px;width:46px;height:46px;font-size:24px;opacity:.6}
.ask-empty i{color:var(--ink)}
.ask-msg{display:flex}
.ask-user{justify-content:flex-end}
.ask-bubble{max-width:80%;border-radius:12px;padding:11px 14px;font-size:13.5px;line-height:1.6}
.ask-user .ask-bubble{background:var(--royal);color:#fff;border-bottom-right-radius:4px}
.ask-ai .ask-bubble{background:var(--paper-2);border:1px solid var(--line);color:var(--text);border-bottom-left-radius:4px}
.ask-cites{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px;padding-top:10px;border-top:1px dashed var(--line-2)}
.ask-cite{display:inline-flex;align-items:center;gap:6px;font-family:var(--inter);font-size:11.5px;color:var(--muted);
  background:#fff;border:1px solid var(--line-2);border-radius:7px;padding:4px 9px;cursor:default;max-width:240px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ask-cite.doc{cursor:pointer;color:var(--royal);border-color:rgba(31,46,214,.28)}
.ask-cite.doc:hover{background:rgba(31,46,214,.06)}
.ask-cite__num{font-family:var(--mont);font-weight:700;font-size:10px;color:var(--royal);flex:none}
.ask-compose{display:flex;gap:10px;padding:12px 14px;border-top:1px solid var(--line);flex:none;background:#fff;align-items:flex-end}
.ask-compose textarea{flex:1;resize:none;font-size:13.5px;max-height:120px}
.ask-compose .btn{flex:none}
.ask-typing{display:inline-flex;gap:4px;align-items:center}
.ask-typing span{width:6px;height:6px;border-radius:50%;background:var(--blue-300);animation:askblink 1.1s infinite ease-in-out}
.ask-typing span:nth-child(2){animation-delay:.18s}.ask-typing span:nth-child(3){animation-delay:.36s}
@keyframes askblink{0%,80%,100%{opacity:.3}40%{opacity:1}}
.ask-side .panel__body{padding:16px 18px}
.ask-lens-list{display:flex;flex-direction:column;gap:10px;margin-top:12px}
.ask-lens-card{background:var(--paper-2);border:1px solid var(--line);border-radius:9px;padding:10px 12px}
.ask-lens-card b{display:block;font-family:var(--mont);font-size:12.5px;color:var(--ink);margin-bottom:3px}
.ask-lens-card span{font-size:11.5px;color:var(--muted);line-height:1.45}
@media (max-width:1000px){.ask-wrap{grid-template-columns:1fr}.ask-side{order:-1}.ask-main{height:auto;min-height:360px}}

/* inline PDF viewer */
.pdf-overlay{position:fixed;inset:0;z-index:100;background:rgba(14,21,66,.85);display:flex;flex-direction:column}
.pdf-overlay.hide{display:none!important}
.pdf-bar{display:flex;align-items:center;gap:12px;height:54px;padding:0 16px;background:var(--ink);color:#fff;flex:none}
.pdf-bar h3{font-family:var(--mont);font-size:14px;font-weight:600;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:46vw}
.pdf-bar .grow{flex:1}
.pdf-frame{flex:1;border:none;width:100%;background:#525659}