/* AI Company Console v3 design tokens */
:root {
  --bg-canvas: #f8fafc;
  --surface: #ffffff;
  --surface-subtle: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --border-default: #e2e8f0;
  --border-strong: #94a3b8;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accepted-bg: #dcfce7;
  --accepted-fg: #166534;
  --on-hold-bg: #fef3c7;
  --on-hold-fg: #92400e;
  --rejected-bg: #fee2e2;
  --rejected-fg: #991b1b;
  --pending-bg: #dbeafe;
  --pending-fg: #1e40af;
  --danger: #b91c1c;
  --radius-sm: 6px;
  --radius-md: 8px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--text-primary); background: var(--bg-canvas); font-family: "IBM Plex Sans JP", "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 14px; }
code { font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; color: var(--text-secondary); }
a { color: inherit; }

.app-header { height: 52px; display: flex; align-items: center; gap: 44px; padding: 0 20px; border-bottom: 1px solid var(--border-default); background: var(--surface); }
.app-wordmark { font-size: 12px; letter-spacing: .04em; }
.app-nav { display: flex; gap: 34px; align-items: center; font-size: 13px; }
.app-nav a { text-decoration: none; }
.app-nav .is-active, .app-nav a.is-active { color: var(--text-primary); font-weight: 600; }
.app-nav span:not(.is-active) { color: var(--text-muted); }
.workspace-label { margin-left: auto; color: var(--text-muted); }

.page-shell { padding: 32px; max-width: 1440px; margin: 0 auto; }
.page-shell--narrow { max-width: 920px; }
.page-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.page-heading h1 { margin: 0 0 8px; font-size: 24px; line-height: 1.25; }
.page-heading p { margin: 0; color: var(--text-secondary); }
.state-summary { display: flex; align-items: center; gap: 8px; }
.state-count { margin-right: 8px; font-variant-numeric: tabular-nums; }

.state-badge { display: inline-flex; align-items: center; min-height: 22px; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .02em; }
.state-badge--pending { background: var(--pending-bg); color: var(--pending-fg); }
.state-badge--more_research_requested { background: var(--on-hold-bg); color: var(--on-hold-fg); }
.state-badge--accepted { background: var(--accepted-bg); color: var(--accepted-fg); }
.state-badge--rejected { background: var(--rejected-bg); color: var(--rejected-fg); }

.inbox-layout { display: grid; grid-template-columns: minmax(0, 1fr) 472px; gap: 24px; align-items: start; }
.proposal-list-panel, .proposal-inspector, .proposal-document, .decision-panel { border: 1px solid var(--border-default); background: var(--surface); }
.panel { border: 1px solid var(--border-default); background: var(--surface); }
.proposal-table { width: 100%; border-collapse: collapse; }
.proposal-table th, .proposal-table td { height: 40px; padding: 0 16px; text-align: left; border-bottom: 1px solid var(--border-default); font-size: 13px; }
.proposal-table th { color: var(--text-secondary); font-weight: 600; background: #fbfdff; }
.proposal-table tr.is-selected td { background: var(--surface-subtle); }
.proposal-table a { text-decoration: none; font-weight: 500; }

.proposal-inspector { padding: 24px; }
.proposal-inspector h2 { margin: 10px 0 12px; font-size: 18px; }
.trust-label { letter-spacing: .04em; }
.provenance-block, .version-block { display: grid; gap: 6px; margin: 24px 0; }
.inspector-section { margin-top: 28px; }
.inspector-section h3, .version-block h3 { margin: 0 0 8px; font-size: 12px; }
.inspector-section p { margin: 0; line-height: 1.6; }
.inspector-section ul { margin: 0; padding-left: 18px; color: var(--text-secondary); }

.detail-links { display: flex; gap: 8px; margin: -12px 0 20px; }
.detail-links a { padding: 7px 10px; border: 1px solid var(--border-default); border-radius: var(--radius-sm); background: var(--surface); color: var(--text-secondary); text-decoration: none; font-size: 12px; font-weight: 600; }
.proposal-detail-layout { display: grid; grid-template-columns: minmax(0, 900px) minmax(360px, 452px); gap: 24px; align-items: start; }
.proposal-document { overflow: hidden; }
.agent-proposal-block { padding: 18px 22px 22px; border-left: 3px solid var(--border-strong); background: var(--surface-subtle); }
.agent-proposal-block h2 { margin: 12px 0 8px; font-size: 13px; }
.agent-proposal-block p { line-height: 1.6; }
.document-section { padding: 24px; border-bottom: 1px solid var(--border-default); }
.document-section h2 { margin: 0 0 12px; font-size: 12px; }
.document-section p { margin: 0; line-height: 1.7; }
.evidence-row { padding: 14px 0; border-bottom: 1px solid var(--border-default); display: grid; gap: 5px; }
.artifact-line { display: block; padding: 18px 24px; overflow-wrap: anywhere; }

.decision-panel { padding: 16px 24px 24px; }
.authoritative-state, .opportunity-state-block { background: #020617; color: #f8fafc; border-radius: var(--radius-sm); padding: 16px 18px; }
.authoritative-state { display: grid; gap: 12px; margin-bottom: 28px; }
.authoritative-state code, .opportunity-state-block code { color: #cbd5e1; }
.decision-panel h2 { margin: 0 0 10px; font-size: 16px; }
.decision-panel p { color: var(--text-secondary); line-height: 1.6; }
.decision-form { display: grid; gap: 10px; margin-top: 28px; }
.decision-form label { font-size: 12px; font-weight: 600; }
.decision-form textarea { width: 100%; resize: vertical; min-height: 88px; padding: 10px 12px; border: 1px solid var(--border-default); border-radius: var(--radius-sm); font: inherit; }
.decision-form textarea:focus { outline: 2px solid #93c5fd; outline-offset: 1px; border-color: var(--accent); }
.decision-actions { display: flex; gap: 8px; margin-top: 10px; }
.button { min-width: 86px; min-height: 36px; display: inline-flex; align-items: center; justify-content: center; padding: 0 14px; border-radius: var(--radius-sm); border: 1px solid transparent; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.button--primary { color: white; background: var(--accent); }
.button--primary:hover { background: var(--accent-hover); }
.button--secondary { color: var(--text-primary); background: var(--surface); border-color: var(--border-default); }
.button--danger { color: var(--danger); background: var(--surface); border-color: #fecaca; }
.muted-copy { font-size: 12px; color: var(--text-muted) !important; }

.empty-state { min-height: 320px; padding: 36px; }
.empty-state h2 { margin: 22px 0 8px; }
.empty-state p { color: var(--text-secondary); }
.opportunity-state-block { max-width: 100%; margin-bottom: 28px; }
.opportunity-state-block > div { display: flex; justify-content: space-between; align-items: center; }
.transition-copy { font-size: 18px; font-weight: 600; }

.conflict-panel { border: 1px solid var(--border-strong); background: var(--surface); padding: 32px; }
.conflict-panel h1 { margin: 10px 0 12px; font-size: 24px; }
.conflict-panel > p { color: var(--text-secondary); line-height: 1.65; }
.conflict-versions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 28px 0; }
.conflict-versions section { display: grid; gap: 7px; padding: 18px; border: 1px solid var(--border-default); background: var(--surface-subtle); }
.conflict-versions h2 { margin: 0 0 6px; font-size: 12px; }

.lineage-stack { display: grid; gap: 12px; }
.lineage-node { display: grid; gap: 7px; padding: 18px 20px; border: 1px solid var(--border-default); background: var(--surface); }
.lineage-node--agent { border-left: 3px solid var(--border-strong); background: var(--surface-subtle); }
.lineage-node--authoritative { background: #020617; color: #f8fafc; border-color: #020617; }
.lineage-node--authoritative code { color: #cbd5e1; }
.lineage-node--authoritative p { margin: 4px 0 0; color: #cbd5e1; }
.ops-label { display: inline-flex; width: fit-content; padding: 3px 7px; border: 1px solid var(--border-default); border-radius: var(--radius-sm); color: var(--text-secondary); background: var(--surface-subtle); font-size: 11px; font-weight: 600; }

.history-list { display: grid; gap: 12px; margin-bottom: 24px; }
.history-record { padding: 20px; border: 1px solid var(--border-default); background: var(--surface); }
.history-record__heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.history-record__heading a { font-weight: 600; text-decoration: none; }
.history-record p { color: var(--text-secondary); line-height: 1.6; }
.history-meta { display: grid; gap: 5px; margin-top: 14px; }
.run-summary { padding: 20px; margin-bottom: 20px; }
.run-summary p { margin: 12px 0 0; color: var(--text-secondary); line-height: 1.6; }

@media (max-width: 800px) {
  .app-header { gap: 18px; padding: 0 16px; }
  .app-nav { display: none; }
  .workspace-label { display: none; }
  .page-shell { padding: 20px 12px 120px; }
  .page-heading { display: block; }
  .page-heading .button { margin-top: 14px; }
  .state-summary { margin-top: 16px; flex-wrap: wrap; }
  .inbox-layout, .proposal-detail-layout { display: block; }
  .proposal-table thead { display: none; }
  .proposal-table, .proposal-table tbody, .proposal-table tr, .proposal-table td { display: block; width: 100%; }
  .proposal-table tr { margin-bottom: 12px; border: 1px solid var(--border-default); border-radius: var(--radius-sm); padding: 12px; background: var(--surface); }
  .proposal-table td { height: auto; min-height: 26px; padding: 3px 0; border: 0; }
  .proposal-inspector { display: none; }
  .decision-panel { margin-top: 12px; }
  .decision-actions { position: sticky; bottom: 0; margin: 20px -24px -24px; padding: 14px 16px; background: var(--surface); border-top: 1px solid var(--border-default); }
  .decision-actions .button { flex: 1; min-width: 0; }
  .detail-links { overflow-x: auto; padding-bottom: 4px; }
  .detail-links a { white-space: nowrap; }
  .conflict-versions { grid-template-columns: 1fr; }
  .history-record__heading { align-items: flex-start; flex-direction: column; }
}

.session-bar { display: flex; justify-content: flex-end; padding: 0.5rem 1rem; }
.login { max-width: 28rem; margin: 4rem auto; padding: 0 1rem; }