:root {
  --slate-950: #0a0f1a;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #2d3f55;
  --slate-600: #3d5068;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50:  #f8fafc;

  --blue-600:  #2563eb;
  --blue-500:  #3b82f6;
  --blue-400:  #60a5fa;
  --blue-100:  #dbeafe;
  --blue-50:   #eff6ff;

  --surface:        #ffffff;
  --surface-muted:  #f8fafc;
  --text-primary:   #0f172a;
  --text-secondary: #475569;
  --text-tertiary:  #94a3b8;
  --border:         #e2e8f0;
  --border-subtle:  #f1f5f9;

  --topbar-h:  0px;
  --hubnav-h:  56px;
  --sidebar-w: 248px;
  --radius-sm: 4px;
  --radius:    6px;
  --radius-lg: 10px;

  --shadow-sm: 0 1px 2px rgba(15,23,42,.06), 0 0 0 1px rgba(15,23,42,.04);
  --shadow-md: 0 4px 12px rgba(15,23,42,.08), 0 0 0 1px rgba(15,23,42,.04);
  --shadow-lg: 0 12px 32px rgba(15,23,42,.12), 0 0 0 1px rgba(15,23,42,.05);
}

html { font-size: 15px; -webkit-font-smoothing: antialiased; }
body { font-family: var(--brand-font, 'DM Sans', 'Inter', system-ui, sans-serif); background: var(--surface-muted); color: var(--text-primary); }
a { color: inherit; text-decoration: none; }

/* ── Topbar ── */
.atrium-topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  background: var(--slate-800);
  display: flex;
  align-items: center;
  padding: 0 20px;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.atrium-topbar-brand {
  display: flex; align-items: center; gap: 10px;
  width: var(--sidebar-w); padding-right: 20px; flex-shrink: 0;
}
.atrium-brand-icon {
  width: 26px; height: 26px;
  background: var(--blue-500);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.atrium-brand-icon svg { width: 14px; height: 14px; fill: white; }
.atrium-brand-name {
  font-family: 'DM Serif Display', 'Georgia', serif;
  font-size: 1.1rem; color: #fff; letter-spacing: .02em;
}
.atrium-brand-sep {
  width: 1px; height: 24px;
  background: rgba(255,255,255,.1);
  margin-right: 20px; flex-shrink: 0;
}
.atrium-topbar-search {
  flex: 1; max-width: 420px; position: relative;
}
.atrium-topbar-search input {
  width: 100%; height: 32px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  color: rgba(255,255,255,.85);
  font-family: inherit; font-size: .875rem;
  padding: 0 12px 0 34px; outline: none;
  transition: border-color .15s, background .15s;
}
.atrium-topbar-search input::placeholder { color: rgba(255,255,255,.35); }
.atrium-topbar-search input:focus { border-color: var(--blue-500); background: rgba(255,255,255,.09); }
.atrium-topbar-search-icon {
  position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
  width: 14px; height: 14px; color: rgba(255,255,255,.35); pointer-events: none;
}
.atrium-topbar-kbd {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  font-family: 'IBM Plex Mono', monospace; font-size: .625rem;
  color: rgba(255,255,255,.3);
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  border-radius: 3px; padding: 1px 5px; letter-spacing: .02em;
}
.atrium-topbar-spacer { flex: 1; }
.atrium-topbar-actions { display: flex; align-items: center; gap: 4px; }
.atrium-topbar-btn {
  width: 32px; height: 32px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.55);
  transition: background .15s, color .15s;
  position: relative; background: none; border: none; cursor: pointer;
}
.atrium-topbar-btn:hover { background: rgba(255,255,255,.08); color: rgba(255,255,255,.85); }
.atrium-topbar-btn svg { width: 16px; height: 16px; }
.atrium-topbar-badge {
  position: absolute; top: 5px; right: 5px;
  width: 7px; height: 7px;
  background: var(--blue-500); border-radius: 50%;
  border: 1.5px solid var(--slate-800);
}
.atrium-topbar-divider { width: 1px; height: 20px; background: rgba(255,255,255,.1); margin: 0 8px; }
.atrium-topbar-user {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 8px 4px 4px; border-radius: var(--radius); cursor: pointer;
  transition: background .15s;
}
.atrium-topbar-user:hover { background: rgba(255,255,255,.08); }
.atrium-user-avatar {
  width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
  display: flex; align-items: center; justify-content: center;
  font-size: .6875rem; font-weight: 600; color: white;
  letter-spacing: .03em; flex-shrink: 0;
}
.atrium-user-name { font-size: .8125rem; font-weight: 500; color: rgba(255,255,255,.9); line-height: 1.2; }
.atrium-user-role { font-size: .6875rem; color: rgba(255,255,255,.4); line-height: 1.2; }

/* ── Layout ── */
.atrium-layout {
  display: flex;
  padding-top: calc(var(--topbar-h) + var(--hubnav-h));
  min-height: 100vh;
}
body:not(:has(.atrium-hubnav)) .atrium-layout {
  padding-top: var(--topbar-h);
}

/* ── Sidebar ── */
.atrium-sidebar {
  width: var(--sidebar-w);
  background: var(--slate-800);
  flex-shrink: 0;
  position: fixed;
  top: calc(var(--topbar-h) + var(--hubnav-h)); left: 0; bottom: 0;
  overflow-y: auto;
  padding: 16px 0;
  border-right: 1px solid rgba(255,255,255,.05);
  scrollbar-width: none;
}
.atrium-sidebar::-webkit-scrollbar { display: none; }
.atrium-sidebar-section {
  margin-bottom: 8px; padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.atrium-sidebar-section:last-child { border-bottom: none; }
.atrium-sidebar-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: .625rem; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase;
  color: rgba(255,255,255,.25);
  padding: 8px 20px 4px;
}
.atrium-sidebar-item {
  display: flex; align-items: center; gap: 9px;
  padding: 7px 20px;
  font-size: .875rem; font-weight: 400;
  color: rgba(255,255,255,.55);
  cursor: pointer;
  transition: background .12s, color .12s;
  position: relative;
}
.atrium-sidebar-item:hover { background: rgba(255,255,255,.05); color: rgba(255,255,255,.8); }
.atrium-sidebar-item.active { color: #fff; background: rgba(59,130,246,.15); }
.atrium-sidebar-item.active::before {
  content: '';
  position: absolute; left: 0; top: 4px; bottom: 4px;
  width: 2.5px; background: var(--blue-500);
  border-radius: 0 2px 2px 0;
}
.atrium-sidebar-item svg { width: 15px; height: 15px; flex-shrink: 0; opacity: .75; }
.atrium-sidebar-item.active svg { opacity: 1; }
.atrium-sidebar-badge {
  margin-left: auto;
  font-family: 'IBM Plex Mono', monospace; font-size: .625rem;
  background: rgba(59,130,246,.25); color: var(--blue-400);
  padding: 2px 6px; border-radius: 20px; letter-spacing: .02em;
}

/* ── Main ── */
.atrium-main {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 28px 32px;
  max-width: 1200px;
}
.atrium-main--full {
  margin-left: 0;
  max-width: 1280px;
  margin-right: auto;
  margin-left: auto;
  width: 100%;
}

/* ── Page header ── */
.atrium-page-eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: .6875rem; color: var(--blue-500);
  letter-spacing: .08em; text-transform: uppercase; margin-bottom: 4px;
}
.atrium-page-title {
  font-family: 'DM Serif Display', 'Georgia', serif;
  font-size: 1.625rem; font-weight: 400;
  color: var(--slate-900); letter-spacing: -.01em; line-height: 1.2;
}
.atrium-page-subtitle { font-size: .875rem; color: var(--text-secondary); margin-top: 3px; }

/* ── Buttons ── */
.atrium-btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 34px; padding: 0 14px;
  border-radius: var(--radius); font-size: .875rem; font-weight: 500;
  font-family: inherit; cursor: pointer; border: none;
  transition: background .15s, box-shadow .15s, transform .08s;
}
.atrium-btn:active { transform: translateY(1px); }
.atrium-btn svg { width: 14px; height: 14px; }
.atrium-btn-primary {
  background: var(--blue-500); color: white;
  box-shadow: 0 1px 3px rgba(59,130,246,.3);
}
.atrium-btn-primary:hover { background: var(--blue-600); box-shadow: 0 2px 8px rgba(59,130,246,.35); }
.atrium-btn-ghost {
  background: var(--surface); color: var(--text-secondary);
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
}
.atrium-btn-ghost:hover { background: var(--slate-50); color: var(--text-primary); }

/* ── Card ── */
.atrium-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.atrium-card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border-subtle);
}
.atrium-card-title { font-size: .9375rem; font-weight: 600; color: var(--slate-900); letter-spacing: -.01em; }
.atrium-card-action { font-size: .8125rem; color: var(--blue-500); font-weight: 500; cursor: pointer; transition: color .12s; }
.atrium-card-action:hover { color: var(--blue-600); }
.atrium-card-body { padding: 20px; }
.atrium-card-footer { padding: 10px 16px; border-top: 1px solid var(--border); background: var(--surface-raised, #f8fafc); border-radius: 0 0 var(--radius) var(--radius); display: flex; align-items: center; gap: 8px; }

/* ── Status badge ── */
.atrium-badge {
  display: inline-flex; align-items: center;
  height: 20px; padding: 0 7px;
  border-radius: 20px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: .625rem; font-weight: 500;
  letter-spacing: .03em; text-transform: uppercase;
}
.atrium-badge-draft    { background: var(--slate-100); color: var(--slate-600); }
.atrium-badge-published { background: #d1fae5; color: #065f46; }
.atrium-badge-archived  { background: var(--slate-100); color: var(--slate-400); }
.atrium-badge-pending   { background: #fef3c7; color: #92400e; }
.atrium-badge-completed { background: #d1fae5; color: #065f46; }
.atrium-badge-in-review { background: #dbeafe; color: #1d4ed8; }
.atrium-badge-approved  { background: #d1fae5; color: #065f46; }
.atrium-badge-rejected  { background: #fee2e2; color: #991b1b; }

/* ── Table ── */
.atrium-table { width: 100%; border-collapse: collapse; }
.atrium-table th {
  font-family: 'IBM Plex Mono', monospace;
  font-size: .625rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--text-tertiary); font-weight: 500; text-align: left;
  padding: 8px 12px; border-bottom: 1px solid var(--border); white-space: nowrap;
}
.atrium-table td {
  padding: 11px 12px; font-size: .875rem;
  color: var(--text-primary); border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}
.atrium-table tr:last-child td { border-bottom: none; }
.atrium-table tbody tr { cursor: pointer; transition: background .12s; }
.atrium-table tbody tr:hover { background: var(--slate-50); }

/* ── Notice / flash ── */
.atrium-notice {
  display: flex; align-items: center; gap: 12px;
  background: var(--blue-50); border: 1px solid var(--blue-100);
  border-radius: var(--radius); padding: 12px 16px;
  font-size: .875rem; color: var(--slate-900);
}
.atrium-notice-error { background: #fef2f2; border-color: #fecaca; }
.atrium-notice svg { width: 16px; height: 16px; color: var(--blue-500); flex-shrink: 0; }

/* ── Form inputs ── */
.atrium-input {
  width: 100%; height: 36px; box-sizing: border-box;
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0 10px; font-family: inherit; font-size: .875rem;
  color: var(--text-primary); background: var(--surface);
  outline: none; transition: border-color .15s, box-shadow .15s;
}
.atrium-input:focus { border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(59,130,246,.1); }
.atrium-label { display: block; font-size: .8125rem; font-weight: 500; color: var(--text-secondary); margin-bottom: 6px; }
textarea.atrium-input { height: auto; padding: 8px 10px; }

/* ── Animations ── */
@keyframes atrium-fade-up {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.atrium-anim { animation: atrium-fade-up .25s ease both; }

/* ── Stat cards ── */
.atrium-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.atrium-stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: box-shadow .2s, transform .15s;
}
.atrium-stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.atrium-stat-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--blue-500);
  opacity: 0;
  transition: opacity .2s;
}
.atrium-stat-card:hover::after { opacity: 1; }
.atrium-stat-label {
  font-size: .75rem; font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: .03em; text-transform: uppercase;
  margin-bottom: 8px;
}
.atrium-stat-value {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 1.625rem; font-weight: 500;
  color: var(--slate-900);
  letter-spacing: -.02em; line-height: 1;
  margin-bottom: 6px;
}
.atrium-stat-delta {
  display: inline-flex; align-items: center; gap: 3px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: .6875rem; font-weight: 500;
}
.atrium-stat-delta.up { color: #16a34a; }
.atrium-stat-delta.down { color: #dc2626; }
.atrium-stat-delta.neutral { color: var(--text-tertiary); }
.atrium-stat-delta svg { width: 10px; height: 10px; }

/* ── Content grid ── */
.atrium-content-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 16px;
}
.atrium-content-col { display: flex; flex-direction: column; gap: 16px; }

/* ── Announcement feed ── */
.atrium-announcement-list { display: flex; flex-direction: column; }
.atrium-announcement-item {
  display: flex;
  gap: 14px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: background .12s;
  margin: 0 -20px;
}
.atrium-announcement-item:last-child { border-bottom: none; }
.atrium-announcement-item:hover { background: var(--slate-50); }
.atrium-ann-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 1px;
}
.atrium-ann-icon svg { width: 16px; height: 16px; }
.atrium-ann-icon.blue  { background: var(--blue-50);  color: var(--blue-600); }
.atrium-ann-icon.green { background: #f0fdf4; color: #16a34a; }
.atrium-ann-icon.amber { background: #fffbeb; color: #d97706; }
.atrium-ann-icon.slate { background: var(--slate-100); color: var(--slate-600); }
.atrium-ann-content { flex: 1; min-width: 0; }
.atrium-ann-category {
  font-family: 'IBM Plex Mono', monospace;
  font-size: .6rem; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-tertiary); margin-bottom: 3px;
}
.atrium-ann-title {
  font-size: .9rem; font-weight: 500;
  color: var(--text-primary); line-height: 1.4; margin-bottom: 4px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.atrium-ann-excerpt {
  font-size: .8125rem; color: var(--text-secondary); line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.atrium-ann-meta { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.atrium-ann-author { font-size: .75rem; color: var(--text-tertiary); }
.atrium-ann-dot { width: 3px; height: 3px; background: var(--slate-300); border-radius: 50%; }
.atrium-ann-time { font-family: 'IBM Plex Mono', monospace; font-size: .6875rem; color: var(--text-tertiary); }

/* ── Quick links ── */
.atrium-quick-links {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
}
.atrium-quick-link {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 14px 8px;
  border: 1px solid var(--border); border-radius: var(--radius);
  cursor: pointer; text-decoration: none;
  transition: background .12s, border-color .12s, box-shadow .15s, transform .1s;
}
.atrium-quick-link:hover {
  background: var(--blue-50); border-color: var(--blue-100);
  box-shadow: 0 0 0 3px rgba(59,130,246,.06); transform: translateY(-1px);
}
.atrium-ql-icon {
  width: 32px; height: 32px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  background: var(--slate-100); color: var(--slate-600);
  transition: background .12s, color .12s;
}
.atrium-quick-link:hover .atrium-ql-icon { background: var(--blue-100); color: var(--blue-600); }
.atrium-ql-icon svg { width: 15px; height: 15px; }
.atrium-ql-label { font-size: .75rem; font-weight: 500; color: var(--text-secondary); text-align: center; line-height: 1.3; }

/* ── People directory ── */
.atrium-people-list { display: flex; flex-direction: column; gap: 2px; }
.atrium-person-row {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 10px; border-radius: var(--radius);
  cursor: pointer; transition: background .12s;
}
.atrium-person-row:hover { background: var(--slate-50); }
.atrium-person-avatar {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  font-size: .7rem; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
  color: white; letter-spacing: .02em;
}
.atrium-person-info { flex: 1; min-width: 0; }
.atrium-person-name { font-size: .875rem; font-weight: 500; color: var(--text-primary); line-height: 1.3; }
.atrium-person-title { font-size: .75rem; color: var(--text-tertiary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.atrium-person-status { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.atrium-person-status.online  { background: #22c55e; }
.atrium-person-status.away    { background: #f59e0b; }
.atrium-person-status.busy    { background: #ef4444; }
.atrium-person-status.offline { background: var(--slate-300); }

/* ── Events ── */
.atrium-event-list { display: flex; flex-direction: column; gap: 10px; }
.atrium-event-item {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 12px; background: var(--surface-muted);
  border-radius: var(--radius); border: 1px solid var(--border-subtle);
  cursor: pointer; transition: border-color .12s, background .12s;
}
.atrium-event-item:hover { border-color: #bfdbfe; background: var(--blue-50); }
.atrium-event-date {
  width: 38px; background: var(--slate-800);
  border-radius: var(--radius-sm);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 4px 0; flex-shrink: 0;
}
.atrium-event-month {
  font-family: 'IBM Plex Mono', monospace;
  font-size: .55rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--blue-400); line-height: 1;
}
.atrium-event-day {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 1.1rem; font-weight: 500; color: white; line-height: 1.2;
}
.atrium-event-info { flex: 1; min-width: 0; }
.atrium-event-title { font-size: .875rem; font-weight: 500; color: var(--text-primary); line-height: 1.3; margin-bottom: 3px; }
.atrium-event-detail { display: flex; align-items: center; gap: 10px; font-size: .75rem; color: var(--text-tertiary); }
.atrium-event-detail span { display: flex; align-items: center; gap: 4px; }
.atrium-event-detail svg { width: 11px; height: 11px; }

/* ── Doc file icon ── */
.atrium-doc-name { display: flex; align-items: center; gap: 9px; font-weight: 500; }
.atrium-doc-file-icon {
  width: 26px; height: 26px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.atrium-doc-file-icon svg { width: 13px; height: 13px; }
.atrium-doc-file-icon.pdf { background: #fee2e2; color: #dc2626; }
.atrium-doc-file-icon.doc { background: #dbeafe; color: #2563eb; }
.atrium-doc-file-icon.xls { background: #d1fae5; color: #16a34a; }
.atrium-doc-file-icon.ppt { background: #fef3c7; color: #d97706; }
.atrium-doc-tag {
  display: inline-flex; align-items: center;
  height: 20px; padding: 0 7px; border-radius: 20px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: .625rem; font-weight: 500; letter-spacing: .03em; text-transform: uppercase;
}
.atrium-doc-tag.hr  { background: #f3e8ff; color: #7c3aed; }
.atrium-doc-tag.fin { background: #d1fae5; color: #065f46; }
.atrium-doc-tag.eng { background: #dbeafe; color: #1d4ed8; }
.atrium-doc-tag.ops { background: #fef3c7; color: #92400e; }
.atrium-doc-modified { font-family: 'IBM Plex Mono', monospace; font-size: .75rem; color: var(--text-tertiary); }

/* ── Auth pages (login, password reset, invitation) ── */
.atrium-auth-page {
  min-height: 100vh;
  background: var(--surface-muted);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.atrium-auth-card {
  width: 100%; max-width: 400px;
}
.atrium-auth-brand {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; margin-bottom: 28px;
}
.atrium-auth-logo {
  width: 44px; height: 44px;
  background: var(--slate-800);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
  box-shadow: var(--shadow-md);
}
.atrium-auth-logo svg { width: 22px; height: 22px; fill: white; }
.atrium-auth-logo-img {
  max-width: 120px; max-height: 120px;
  object-fit: contain;
  margin-bottom: 14px;
}
.atrium-auth-tenant {
  font-family: 'DM Serif Display', serif;
  font-size: 1.375rem; color: var(--slate-900);
  letter-spacing: .01em; line-height: 1.2; margin-bottom: 4px;
}
.atrium-auth-subtitle { font-size: .875rem; color: var(--text-secondary); }
.atrium-auth-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 28px;
}
.atrium-auth-divider {
  position: relative; margin: 18px 0;
}
.atrium-auth-divider::before {
  content: '';
  position: absolute; inset: 50% 0 auto;
  border-top: 1px solid var(--border);
}
.atrium-auth-divider span {
  position: relative; display: block;
  width: fit-content; margin: 0 auto;
  padding: 0 10px;
  font-size: .75rem; color: var(--text-tertiary);
  background: var(--surface);
}
.atrium-auth-field { margin-bottom: 16px; }
.atrium-auth-field:last-of-type { margin-bottom: 20px; }
.atrium-auth-field-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.atrium-auth-submit {
  width: 100%; height: 38px;
  background: var(--blue-500); color: white;
  border: none; border-radius: var(--radius);
  font-family: inherit; font-size: .875rem; font-weight: 500;
  cursor: pointer; transition: background .15s;
}
.atrium-auth-submit:hover { background: var(--blue-600); }
.atrium-auth-error {
  background: #fef2f2; border: 1px solid #fecaca;
  border-radius: var(--radius); padding: 10px 14px;
  font-size: .875rem; color: #991b1b; margin-bottom: 16px;
}
.atrium-auth-idp-btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; height: 38px;
  border-radius: var(--radius); font-size: .875rem; font-weight: 500;
  font-family: inherit; cursor: pointer; transition: background .15s, border-color .15s;
  margin-bottom: 8px;
}
.atrium-auth-idp-btn.primary { background: var(--blue-500); color: white; border: 1px solid var(--blue-500); }
.atrium-auth-idp-btn.primary:hover { background: var(--blue-600); }
.atrium-auth-idp-btn.secondary { background: var(--surface); color: var(--text-primary); border: 1px solid var(--border); }
.atrium-auth-idp-btn.secondary:hover { background: var(--slate-50); }

/* ── TipTap / ProseMirror editor ───────────────────���─────────────────── */

/* Make the inner editable div fill the container height */
[data-tiptap-editor] .ProseMirror {
  min-height: inherit;
  outline: none;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--text-primary);
}

/* Word-like document sheet */
.atrium-doc-editor {
  background: var(--surface-raised, #f1f5f9);
  padding: 32px 0 48px;
}

.atrium-doc-sheet {
  background: white;
  width: 794px;
  max-width: 100%;
  margin: 0 auto;
  padding: 64px 72px;
  box-shadow: 0 2px 8px rgba(0,0,0,.10), 0 0 0 1px rgba(0,0,0,.04);
  border-radius: 2px;
}

.atrium-doc-sheet [data-tiptap-editor] .ProseMirror {
  min-height: 600px;
}

/* Prose styles inside the editor */
[data-tiptap-editor] .ProseMirror h1 { font-size: 1.75rem; font-weight: 700; margin: 1.2em 0 .4em; }
[data-tiptap-editor] .ProseMirror h2 { font-size: 1.35rem; font-weight: 700; margin: 1.1em 0 .4em; }
[data-tiptap-editor] .ProseMirror h3 { font-size: 1.1rem;  font-weight: 600; margin: 1em 0 .3em; }
[data-tiptap-editor] .ProseMirror p  { margin: 0 0 .75em; }
[data-tiptap-editor] .ProseMirror ul { list-style: disc;    padding-left: 1.5em; margin: .5em 0; }
[data-tiptap-editor] .ProseMirror ol { list-style: decimal; padding-left: 1.5em; margin: .5em 0; }
[data-tiptap-editor] .ProseMirror li { margin: .2em 0; }
[data-tiptap-editor] .ProseMirror blockquote { border-left: 3px solid var(--blue-300,#93c5fd); padding-left: 1em; color: var(--text-secondary); margin: .75em 0; }
[data-tiptap-editor] .ProseMirror pre  { background: var(--surface-raised,#f1f5f9); border-radius: var(--radius); padding: .75em 1em; font-family: 'IBM Plex Mono', monospace; font-size: .875rem; overflow-x: auto; margin: .75em 0; }
[data-tiptap-editor] .ProseMirror code { background: var(--surface-raised,#f1f5f9); border-radius: 3px; padding: .1em .3em; font-family: 'IBM Plex Mono', monospace; font-size: .875rem; }
[data-tiptap-editor] .ProseMirror strong { font-weight: 700; }
[data-tiptap-editor] .ProseMirror em { font-style: italic; }
[data-tiptap-editor] .ProseMirror s  { text-decoration: line-through; }

/* ── Resizable image alignment (editor + rendered output) ── */
[data-image-wrapper] { display: block; margin: 4px 0; line-height: 0; }
[data-image-wrapper][style*="text-align: center"],
[data-image-wrapper][style*="textAlign: center"] { text-align: center; }
[data-image-wrapper][style*="float: right"] { float: right; margin-left: 1rem; margin-bottom: .5rem; }
[data-image-wrapper]::after { content: ""; display: table; clear: both; }

/* Rendered HTML (document view — no NodeView, just bare img with data-align) */
.atrium-prose img[data-align="center"] { display: block; margin-left: auto; margin-right: auto; }
.atrium-prose img[data-align="right"]  { float: right; margin-left: 1rem; margin-bottom: .5rem; }
.atrium-prose img { max-width: 100%; height: auto; border-radius: 4px; }

/* Toolbar inside the doc sheet — flush top, no outer border */
.atrium-doc-sheet [data-tiptap-editor] {
  padding: 0;
}

/* ── Hub navigation bar (second row under topbar) ── */
.atrium-hubnav {
  background: var(--slate-800);
  border-bottom: 1px solid rgba(255,255,255,.06);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--hubnav-h, 56px);
  z-index: 90;
  box-shadow: 0 1px 2px rgba(0,0,0,.08);
}
.atrium-hubnav-inner {
  display: flex;
  align-items: stretch;
  gap: 2px;
  padding: 0 16px;
  height: 100%;
  max-width: 1600px;
  margin: 0 auto;
}
.atrium-hubnav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px 0 0;
  text-decoration: none;
  flex-shrink: 0;
}
.atrium-hubnav-brand-name {
  color: rgba(255,255,255,.9);
  font-weight: 600;
  font-size: .9375rem;
  letter-spacing: -.01em;
  white-space: nowrap;
}
.atrium-hubnav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  margin: auto 12px auto 0;
  padding: 0 10px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
  width: 260px;
  flex-shrink: 0;
  transition: background .15s, border-color .15s, width .2s;
}
.atrium-hubnav-search:focus-within {
  background: rgba(255,255,255,.10);
  border-color: var(--blue-500);
  width: 320px;
}
.atrium-hubnav-search input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: 0;
  color: rgba(255,255,255,.95);
  font-size: .8125rem;
  font-family: inherit;
  min-width: 0;
}
.atrium-hubnav-search input::placeholder { color: rgba(255,255,255,.4); }
.atrium-hubnav-search-icon { width: 14px; height: 14px; color: rgba(255,255,255,.5); flex-shrink: 0; }
.atrium-hubnav-search kbd {
  font-family: 'IBM Plex Mono', monospace;
  font-size: .6875rem;
  color: rgba(255,255,255,.5);
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 4px;
  padding: 1px 5px;
  flex-shrink: 0;
}
.atrium-hubnav-group { position: relative; display: flex; }
.atrium-hubnav-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0 12px;
  font-size: .8125rem;
  font-weight: 500;
  color: rgba(255,255,255,.7);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  height: 100%;
  transition: color .12s, border-color .12s, background .12s;
}
.atrium-hubnav-item:hover {
  color: #fff;
  background: rgba(255,255,255,.06);
}
.atrium-hubnav-item.active {
  color: #fff;
  border-bottom-color: var(--blue-500);
}
.atrium-hubnav-group.has-dropdown:hover .atrium-hubnav-item {
  color: #fff;
  background: rgba(255,255,255,.08);
}
.atrium-hubnav-spacer { flex: 1; }
.atrium-hubnav-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  padding-left: 12px;
  margin-left: 8px;
  border-left: 1px solid rgba(255,255,255,.08);
  flex-shrink: 0;
}
.atrium-hubnav-iconbtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius);
  color: rgba(255,255,255,.7);
  text-decoration: none;
  position: relative;
  transition: color .12s, background .12s;
}
.atrium-hubnav-iconbtn:hover { color: #fff; background: rgba(255,255,255,.08); }
.atrium-hubnav-iconbtn svg { width: 16px; height: 16px; }
.atrium-hubnav-iconbtn-dot {
  position: absolute; top: 6px; right: 6px;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--blue-500);
  border: 1.5px solid var(--slate-800);
}
.atrium-hubnav-user {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: var(--radius);
}
.atrium-hubnav-user-name {
  font-size: .8125rem;
  color: rgba(255,255,255,.9);
  font-weight: 500;
  white-space: nowrap;
}
.atrium-hubnav-mega--right { left: auto !important; right: 0; }
.atrium-hubnav-mega {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 520px;
  max-width: 920px;
  background: #fff;
  border: 1px solid var(--border);
  border-top: 2px solid var(--blue-500);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: 0 14px 36px rgba(15,23,42,.16);
  padding: 22px 26px;
  margin-top: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity .14s, transform .14s, visibility .14s;
  z-index: 50;
}
/* hover bridge: invisible padding above panel keeps hover state intact */
.atrium-hubnav-mega::before {
  content: "";
  position: absolute;
  top: -8px;
  left: 0;
  right: 0;
  height: 8px;
  background: transparent;
}
.atrium-hubnav-group.has-dropdown:hover .atrium-hubnav-mega,
.atrium-hubnav-group.has-dropdown:focus-within .atrium-hubnav-mega,
.atrium-hubnav-mega:hover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.atrium-hubnav-mega-grid {
  display: grid;
  grid-template-columns: repeat(var(--col-count, 3), minmax(170px, 1fr));
  gap: 32px;
}
.atrium-hubnav-mega-col { min-width: 0; }
.atrium-hubnav-mega-title {
  font-size: .8125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  letter-spacing: -.005em;
}
.atrium-hubnav-mega-link {
  display: block;
  padding: 6px 0;
  font-size: .8125rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color .12s, padding-left .15s;
}
.atrium-hubnav-mega-link:hover {
  color: var(--blue-600);
  padding-left: 4px;
}

/* ── News reel (dashboard ticker) ── */
.atrium-news-reel {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  margin-bottom: 28px;
}
.atrium-news-reel-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  background: var(--blue-50);
  color: var(--blue-700);
  font-size: .6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  border-right: 1px solid var(--border);
  white-space: nowrap;
  flex-shrink: 0;
}
.atrium-news-reel-track {
  display: flex;
  gap: 32px;
  padding: 10px 16px;
  overflow: hidden;
  flex: 1;
  min-width: 0;
  mask-image: linear-gradient(90deg, transparent 0, #000 24px, #000 calc(100% - 48px), transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 24px, #000 calc(100% - 48px), transparent 100%);
  animation: news-reel-scroll 40s linear infinite;
}
.atrium-news-reel:hover .atrium-news-reel-track { animation-play-state: paused; }
@keyframes news-reel-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.atrium-news-reel-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: .8125rem;
  color: var(--text-primary);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}
.atrium-news-reel-pin {
  font-size: .625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--blue-700);
  background: var(--blue-50);
  border-radius: 4px;
  padding: 2px 6px;
}
.atrium-news-reel-title { font-weight: 500; }
.atrium-news-reel-item:hover .atrium-news-reel-title { color: var(--blue-600); }
.atrium-news-reel-date { color: var(--text-tertiary); font-size: .75rem; }

/* ── Topbar search dropdown ── */
.atrium-search-dropdown {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(15,23,42,.16);
  z-index: 150;
  max-height: 480px;
  overflow-y: auto;
  padding: 4px;
}
.atrium-search-result {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 4px;
  text-decoration: none;
  color: var(--text-primary);
  cursor: pointer;
  transition: background .1s;
}
.atrium-search-result:hover,
.atrium-search-result.active {
  background: var(--slate-50, #f1f5f9);
}
.atrium-search-icon {
  flex-shrink: 0;
  width: 24px;
  text-align: center;
  font-size: .9375rem;
}
.atrium-search-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.atrium-search-title {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.atrium-search-snippet {
  font-size: .75rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 1px;
}
.atrium-search-section {
  flex-shrink: 0;
  font-size: .6875rem;
  color: var(--text-tertiary);
  background: var(--slate-50, #f1f5f9);
  padding: 2px 6px;
  border-radius: 3px;
  align-self: center;
}
.atrium-search-empty {
  padding: 14px;
  text-align: center;
  font-size: .8125rem;
  color: var(--text-tertiary);
}
.atrium-search-all {
  display: block;
  padding: 8px 10px;
  margin-top: 4px;
  border-top: 1px solid var(--border);
  font-size: .75rem;
  color: var(--blue-600);
  text-decoration: none;
  text-align: center;
  font-weight: 500;
}
.atrium-search-all:hover { background: var(--blue-50); }

/* ── AI chat widget ── */
.atrium-ai-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--blue-600);
  color: #fff;
  border: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(15,23,42,.18);
  z-index: 110;
  transition: transform .12s, background .12s;
}
.atrium-ai-fab:hover { transform: translateY(-2px); background: var(--blue-700, #1d4ed8); }

.atrium-ai-panel {
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: min(380px, 90vw);
  height: min(560px, 70vh);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 18px 50px rgba(15,23,42,.22);
  display: flex;
  flex-direction: column;
  z-index: 120;
  overflow: hidden;
}
.atrium-ai-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.atrium-ai-title { font-weight: 600; font-size: .9375rem; color: var(--text-primary); }
.atrium-ai-sub { font-size: .75rem; color: var(--text-tertiary); margin-top: 2px; }
.atrium-ai-iconbtn {
  width: 28px; height: 28px; border-radius: 4px; border: 0; background: transparent;
  color: var(--text-tertiary); cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.atrium-ai-iconbtn:hover { background: var(--slate-50, #f1f5f9); color: var(--text-primary); }
.atrium-ai-messages {
  flex: 1; min-height: 0;
  overflow-y: auto;
  padding: 14px 16px;
  display: flex; flex-direction: column; gap: 10px;
}
.atrium-ai-msg { display: flex; }
.atrium-ai-msg--user { justify-content: flex-end; }
.atrium-ai-msg--assistant { justify-content: flex-start; }
.atrium-ai-bubble {
  max-width: 85%;
  padding: 8px 12px;
  border-radius: 12px;
  font-size: .875rem;
  line-height: 1.45;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.atrium-ai-msg--user .atrium-ai-bubble {
  background: var(--blue-600); color: #fff;
  border-bottom-right-radius: 2px;
}
.atrium-ai-msg--assistant .atrium-ai-bubble {
  background: var(--slate-50, #f1f5f9); color: var(--text-primary);
  border-bottom-left-radius: 2px;
}
.atrium-ai-sources {
  margin-top: 6px; padding-left: 0; list-style: none;
  display: flex; flex-direction: column; gap: 3px;
  font-size: .75rem;
}
.atrium-ai-sources a { color: var(--blue-600); text-decoration: none; }
.atrium-ai-sources a:hover { text-decoration: underline; }
.atrium-ai-typing { font-size: .8125rem; color: var(--text-tertiary); padding: 0 12px; }
.atrium-ai-form {
  display: flex; gap: 6px;
  padding: 10px 12px;
  border-top: 1px solid var(--border);
}
.atrium-ai-form input {
  flex: 1; border: 1px solid var(--border);
  border-radius: 18px; padding: 8px 14px;
  font-size: .875rem; outline: 0;
  background: var(--surface, #fff);
}
.atrium-ai-form input:focus { border-color: var(--blue-500); }
.atrium-ai-send {
  width: 32px; height: 32px; border-radius: 50%;
  border: 0; background: var(--blue-600); color: #fff;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.atrium-ai-send:disabled { opacity: .5; cursor: not-allowed; }
.atrium-ai-send:hover:not(:disabled) { background: var(--blue-700, #1d4ed8); }