/* Enterprise Memory — prototype design system
   Inherited from enterprise-knowledge/prototype (warm white + ink blue).
   Do not invent a second visual language. */

:root{
  --paper:#FBFAF7; --paper-2:#F4F2EC; --paper-3:#EFEDE5;
  --ink:#1F2733; --ink-soft:#5B6472; --ink-faint:#9AA1AC;
  --line:#E7E3D9; --line-soft:#F0EDE5;
  --indigo:#3A4E7A; --indigo-soft:#7488B0; --indigo-wash:#EEF1F7;
  --sage:#5E7A6B; --sage-wash:#EDF2EE;
  --amber:#9A7B3F; --amber-wash:#F5EFE2;
  --clay:#8C5A4A; --clay-wash:#F3ECE8;
  --plum:#6B5B87; --plum-wash:#F0EDF4;
  --teal:#3F7B7B; --teal-wash:#E6F0F0;
  --radius:14px; --radius-sm:9px;
  --shadow:0 1px 2px rgba(31,39,51,.04), 0 8px 24px rgba(31,39,51,.05);
  --shadow-lg:0 2px 4px rgba(31,39,51,.05), 0 16px 40px rgba(31,39,51,.08);
  --side-w:262px; --banner-h:34px;
  color-scheme: light;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body{
  font-family:"Noto Color Emoji","Noto Serif SC",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--paper);color:var(--ink);line-height:1.6;
  overflow-wrap:anywhere;
}
a{color:inherit}
.display{font-family:"Noto Color Emoji","Noto Serif SC",Georgia,serif;font-weight:700;letter-spacing:-.01em}
.ui{font-family:"Noto Color Emoji",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
.mono{font-family:"Noto Color Emoji","SF Mono",ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}

/* focus is never removed — keyboard reachability is an acceptance item */
:focus-visible{outline:2px solid var(--indigo);outline-offset:2px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:10px;top:-60px;z-index:200;background:var(--indigo);color:#fff;padding:9px 14px;border-radius:8px;font-size:13px;transition:top .15s}
.skip-link:focus{top:calc(var(--banner-h) + 8px)}

/* ── prototype banner: always visible, never dismissible ───────────── */
.proto-banner{
  position:fixed;inset:0 0 auto 0;height:var(--banner-h);z-index:120;
  background:var(--amber-wash);color:var(--amber);border-bottom:1px solid #E8DDC4;
  display:flex;align-items:center;justify-content:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.02em;padding:0 12px;text-align:center;
}
.proto-banner .dot{width:6px;height:6px;border-radius:50%;background:var(--amber);flex:none}

/* ── shell ─────────────────────────────────────────────────────────── */
.app{display:grid;grid-template-columns:var(--side-w) 1fr;min-height:100vh;padding-top:var(--banner-h)}
.app.is-plain{grid-template-columns:1fr}

.side{
  background:var(--paper);border-right:1px solid var(--line);padding:22px 18px;
  display:flex;flex-direction:column;gap:2px;
  position:sticky;top:var(--banner-h);height:calc(100vh - var(--banner-h));overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px;padding:2px 8px 18px}
.brand-mark{width:38px;height:38px;border-radius:11px;flex:none;background:linear-gradient(140deg,var(--indigo),var(--indigo-soft));position:relative}
.brand-mark::after{content:"";position:absolute;inset:0;border-radius:11px;
  background:radial-gradient(circle at 30% 32%,rgba(255,255,255,.9) 1.6px,transparent 2.2px),
             radial-gradient(circle at 63% 40%,rgba(255,255,255,.75) 1.6px,transparent 2.2px),
             radial-gradient(circle at 46% 65%,rgba(255,255,255,.85) 1.6px,transparent 2.2px),
             radial-gradient(circle at 71% 69%,rgba(255,255,255,.6) 1.4px,transparent 2.2px)}
.brand-name{font-size:16px;font-weight:700}
.brand-sub{font-size:10.5px;color:var(--ink-faint);letter-spacing:.18em;margin-top:1px}

.nav-group{margin-top:12px}
.nav-label{font-size:10.5px;color:var(--ink-faint);letter-spacing:.16em;padding:0 10px 6px;text-transform:uppercase}
.nav-item{display:flex;align-items:center;gap:11px;padding:8.5px 11px;border-radius:var(--radius-sm);cursor:pointer;
  font-size:13.5px;color:var(--ink-soft);transition:background .15s,color .15s;text-decoration:none;border:0;background:none;width:100%;text-align:left;font-family:inherit}
.nav-item:hover{background:var(--paper-2);color:var(--ink)}
.nav-item.on{background:var(--indigo-wash);color:var(--indigo);font-weight:600}
.nav-item .em{font-size:15px;width:20px;text-align:center;flex:none}
.nav-item .badge{margin-left:auto}
.side-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}

/* ── topbar: space + role + language are always visible ────────────── */
.topbar{
  position:sticky;top:var(--banner-h);z-index:90;background:rgba(251,250,247,.93);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);padding:12px 26px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
.space-switch{display:flex;background:var(--paper-2);border-radius:10px;padding:3px;gap:2px;flex:none}
.space-switch button{border:0;background:none;font:inherit;font-size:13px;padding:6px 14px;border-radius:8px;cursor:pointer;color:var(--ink-soft);display:flex;align-items:center;gap:7px}
.space-switch button[aria-pressed="true"]{background:#fff;color:var(--indigo);font-weight:600;box-shadow:0 1px 3px rgba(31,39,51,.07)}
.topbar-spacer{flex:1 1 auto}
.top-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}

.select{font:inherit;font-size:13px;padding:7px 11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);cursor:pointer}

/* ── main ──────────────────────────────────────────────────────────── */
.main{padding:26px;max-width:1180px;width:100%}
.page-head{margin-bottom:20px}
.page-title{font-size:25px;line-height:1.3}
.page-sub{color:var(--ink-soft);font-size:14px;margin-top:6px;max-width:70ch}
.section{margin-top:26px}
.section-title{font-size:16px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}

.grid{display:grid;gap:16px}
.grid.c2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.c3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.c4{grid-template-columns:repeat(4,minmax(0,1fr))}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.card.flat{box-shadow:none}
.card.pad-lg{padding:24px}
.card-title{font-size:15px;font-weight:700;margin-bottom:4px}
.card-sub{font-size:13px;color:var(--ink-soft)}
.card-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}

.stat{font-size:30px;font-weight:700;line-height:1.1;letter-spacing:-.02em}
.stat-label{font-size:12.5px;color:var(--ink-faint);margin-top:4px}

/* ── badges: never color-only, always carry a glyph or word ────────── */
.badge{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:600;
  padding:2px 9px;border-radius:20px;background:var(--paper-2);color:var(--ink-soft);white-space:nowrap}
.badge.indigo{background:var(--indigo-wash);color:var(--indigo)}
.badge.sage{background:var(--sage-wash);color:var(--sage)}
.badge.amber{background:var(--amber-wash);color:var(--amber)}
.badge.clay{background:var(--clay-wash);color:var(--clay)}
.badge.plum{background:var(--plum-wash);color:var(--plum)}
.badge.teal{background:var(--teal-wash);color:var(--teal)}

.chip{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;padding:4px 11px;border-radius:20px;
  border:1px solid var(--line);background:#fff;color:var(--ink-soft);cursor:pointer;font-family:inherit}
.chip[aria-pressed="true"]{border-color:var(--indigo-soft);background:var(--indigo-wash);color:var(--indigo);font-weight:600}

/* ── buttons ───────────────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:inherit;font-size:13.5px;font-weight:600;
  padding:9px 16px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;
  transition:background .15s,border-color .15s,opacity .15s;text-decoration:none}
.btn:hover{background:var(--paper-2)}
.btn.primary{background:var(--indigo);border-color:var(--indigo);color:#fff}
.btn.primary:hover{background:#334467}
.btn.danger{color:var(--clay);border-color:#E3D2CB}
.btn.danger:hover{background:var(--clay-wash)}
.btn.ghost{border-color:transparent;background:none}
.btn.ghost:hover{background:var(--paper-2)}
.btn.sm{padding:6px 12px;font-size:12.5px}
.btn[disabled],.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* ── forms ─────────────────────────────────────────────────────────── */
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.field .hint{font-size:12px;color:var(--ink-faint);margin-top:5px}
.input,.textarea{width:100%;font:inherit;font-size:14px;padding:10px 13px;border:1px solid var(--line);
  border-radius:10px;background:#fff;color:var(--ink)}
.textarea{min-height:110px;resize:vertical;line-height:1.65}
.input:focus,.textarea:focus{border-color:var(--indigo-soft)}

/* ── tabs ──────────────────────────────────────────────────────────── */
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:18px;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{border:0;background:none;font-family:inherit;font-size:13.5px;color:var(--ink-soft);padding:10px 14px;
  cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap}
.tab[aria-selected="true"]{color:var(--indigo);font-weight:700;border-bottom-color:var(--indigo)}

/* ── list rows ─────────────────────────────────────────────────────── */
.rows{display:flex;flex-direction:column;gap:10px}
.row{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:15px 17px;
  display:flex;gap:14px;align-items:flex-start;box-shadow:var(--shadow);text-align:left;width:100%;font-family:inherit;cursor:pointer}
.row:hover{border-color:var(--indigo-soft)}
.row-main{flex:1 1 auto;min-width:0}
.row-title{font-size:14.5px;font-weight:600;margin-bottom:3px}
.row-desc{font-size:13px;color:var(--ink-soft)}
.row-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:9px}
.row-side{flex:none;display:flex;flex-direction:column;gap:8px;align-items:flex-end}

/* ── source compare (desktop side-by-side, mobile segmented) ───────── */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.compare-seg{display:none}
.source-text{font-size:13.5px;line-height:1.85;color:var(--ink-soft);white-space:pre-wrap}
.source-text mark{background:var(--amber-wash);color:var(--ink);padding:1px 2px;border-radius:3px}
.source-text .redacted{background:var(--clay-wash);color:var(--clay);text-decoration:line-through;padding:1px 3px;border-radius:3px}

/* ── states: empty / error / no-permission / loading ───────────────── */
.state{text-align:center;padding:44px 22px;border:1px dashed var(--line);border-radius:var(--radius);background:var(--paper-2)}
.state .em{font-size:30px;display:block;margin-bottom:10px}
.state-title{font-size:15px;font-weight:700;margin-bottom:6px}
.state-desc{font-size:13.5px;color:var(--ink-soft);max-width:46ch;margin:0 auto 14px}
.state.error{background:var(--clay-wash);border-color:#E3D2CB}
.state.locked{background:var(--paper-3)}

.skeleton{background:linear-gradient(90deg,var(--paper-2) 25%,var(--paper-3) 37%,var(--paper-2) 63%);
  background-size:400% 100%;animation:shimmer 1.3s linear infinite;border-radius:8px;height:14px}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:0 0}}
@media (prefers-reduced-motion:reduce){.skeleton{animation:none}}

.notice{border-left:3px solid var(--indigo-soft);background:var(--indigo-wash);padding:12px 15px;border-radius:0 10px 10px 0;font-size:13px;color:var(--ink-soft)}
.notice.warn{border-left-color:var(--amber);background:var(--amber-wash);color:var(--amber)}
.notice.danger{border-left-color:var(--clay);background:var(--clay-wash);color:var(--clay)}

/* ── modal ─────────────────────────────────────────────────────────── */
.modal-backdrop{position:fixed;inset:0;background:rgba(31,39,51,.34);z-index:150;display:grid;place-items:center;padding:18px}
.modal{background:#fff;border-radius:16px;box-shadow:var(--shadow-lg);width:min(560px,100%);max-height:88vh;overflow:auto;padding:24px}
.modal-title{font-size:18px;font-weight:700;margin-bottom:8px}
.modal-body{font-size:14px;color:var(--ink-soft);margin-bottom:18px}

/* ── toast ─────────────────────────────────────────────────────────── */
.toasts{position:fixed;right:18px;bottom:18px;z-index:180;display:flex;flex-direction:column;gap:10px;max-width:min(380px,calc(100vw - 36px))}
.toast{background:#fff;border:1px solid var(--line);border-left:3px solid var(--sage);border-radius:11px;
  padding:12px 15px;box-shadow:var(--shadow-lg);font-size:13px}
.toast.warn{border-left-color:var(--amber)}
.toast.err{border-left-color:var(--clay)}

.table{width:100%;border-collapse:collapse;font-size:13.5px}
.table th,.table td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line-soft);vertical-align:top}
.table th{font-size:12px;color:var(--ink-faint);letter-spacing:.05em;text-transform:uppercase;font-weight:600}
.table-wrap{overflow-x:auto}

.timeline{border-left:2px solid var(--line);padding-left:18px;display:flex;flex-direction:column;gap:18px;margin-left:6px}
.timeline-item{position:relative}
.timeline-item::before{content:"";position:absolute;left:-25px;top:6px;width:9px;height:9px;border-radius:50%;background:var(--indigo-soft);border:2px solid var(--paper)}

.mobile-only{display:none}

/* ── 768 tablet ────────────────────────────────────────────────────── */
@media (max-width:1024px){
  .grid.c4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid.c3{grid-template-columns:repeat(2,minmax(0,1fr))}
  :root{--side-w:210px}
  .main{padding:22px}
}

/* ── 390 mobile ────────────────────────────────────────────────────── */
@media (max-width:768px){
  .app{grid-template-columns:1fr}
  .side{
    position:fixed;left:0;top:var(--banner-h);z-index:110;width:min(280px,84vw);
    transform:translateX(-102%);transition:transform .2s ease;box-shadow:var(--shadow-lg);
  }
  .app.nav-open .side{transform:none}
  .nav-scrim{position:fixed;inset:var(--banner-h) 0 0 0;background:rgba(31,39,51,.34);z-index:105}
  .mobile-only{display:inline-flex}
  .main{padding:16px}
  .grid.c2,.grid.c3,.grid.c4{grid-template-columns:1fr}
  .topbar{padding:10px 16px;gap:10px}
  .page-title{font-size:21px}
  /* source compare becomes a segmented switcher, not two squeezed columns */
  .compare{grid-template-columns:1fr}
  .compare-seg{display:flex;gap:4px;margin-bottom:12px}
  .compare-pane[hidden]{display:none!important}
  .row{flex-direction:column;align-items:stretch}
  .row-side{flex-direction:row;align-items:center;justify-content:flex-start;flex-wrap:wrap}
  .toasts{right:12px;left:12px;bottom:12px;max-width:none}
}

@media print{.proto-banner,.side,.topbar{display:none}.app{padding-top:0;grid-template-columns:1fr}}