:root {
  color-scheme: light;
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-subtle: #f1f5f9;
  --surface-strong: #e2e8f0;
  --text: #0f172a;
  --text-muted: #475569;
  --text-subtle: #64748b;
  --border: #cbd5e1;
  --border-strong: #94a3b8;
  --accent: #4f46e5;
  --accent-strong: #3730a3;
  --accent-soft: #eef2ff;
  --success: #047857;
  --success-soft: #ecfdf5;
  --warning: #b45309;
  --warning-soft: #fffbeb;
  --danger: #b91c1c;
  --danger-soft: #fef2f2;
  --info: #0369a1;
  --info-soft: #f0f9ff;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
  --font: Inter, Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
select,
input[type="checkbox"] {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(79, 70, 229, 0.35);
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 100;
  transform: translateY(-160%);
  background: var(--accent);
  color: white;
  padding: 8px 12px;
  border-radius: 6px;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.app {
  min-height: 100vh;
}

.loading-shell {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px;
}

.workspace {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  overflow: auto;
  border-right: 1px solid var(--border);
  background: var(--surface);
  padding: 20px 16px;
}

.brand {
  display: grid;
  gap: 4px;
  margin-bottom: 20px;
}

.brand__eyebrow {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.brand h1 {
  margin: 0;
  font-size: 20px;
  line-height: 1.2;
}

.brand p {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
}

.nav-list {
  display: grid;
  gap: 4px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.nav-button {
  width: 100%;
  min-height: 40px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  text-align: left;
}

.nav-button[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 700;
}

.nav-count {
  min-width: 28px;
  padding: 2px 6px;
  border-radius: 999px;
  background: var(--surface-subtle);
  color: var(--text-subtle);
  font-size: 12px;
  text-align: center;
}

.sidebar-actions {
  display: grid;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.main {
  min-width: 0;
  padding: 24px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
  margin-bottom: 20px;
}

.topbar h2 {
  margin: 0;
  font-size: 24px;
  line-height: 1.2;
}

.topbar p {
  max-width: 860px;
  margin: 6px 0 0;
  color: var(--text-muted);
}

.topbar__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.summary-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--border);
  margin-bottom: 20px;
}

.metric {
  min-height: 80px;
  background: var(--surface);
  padding: 14px 16px;
}

.metric__label {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.metric__value {
  margin-top: 6px;
  font-size: 22px;
  font-weight: 750;
  line-height: 1;
}

.metric__note {
  margin-top: 6px;
  color: var(--text-subtle);
  font-size: 12px;
}

.evidence-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--border);
  margin-bottom: 16px;
}

.panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel + .panel {
  margin-top: 16px;
}

.panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 52px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.panel__header h3 {
  margin: 0;
  font-size: 15px;
}

.panel__header p {
  margin: 2px 0 0;
  color: var(--text-muted);
  font-size: 12px;
}

.panel__body {
  padding: 16px;
}

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

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

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 16px;
}

.field {
  display: grid;
  gap: 6px;
}

.field--wide {
  grid-column: 1 / -1;
}

.field label,
.field legend {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: white;
  color: var(--text);
  padding: 8px 10px;
}

.field textarea {
  min-height: 104px;
  resize: vertical;
}

.field small {
  color: var(--text-subtle);
}

.evidence-grid {
  margin-bottom: 16px;
}

.checkbox-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0;
  border: 0;
}

.checkbox-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 9px 10px;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 800;
  background: var(--surface-subtle);
}

td textarea {
  width: 100%;
  min-height: 72px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  resize: vertical;
}

td select,
td input {
  min-height: 36px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: white;
  padding: 6px 8px;
}

.badge,
.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 26px;
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 12px;
  font-weight: 750;
  white-space: nowrap;
}

.badge--todo,
.pill--low,
.pill--p3,
.badge--unused {
  background: var(--surface-subtle);
  color: var(--text-muted);
}

.badge--in-progress,
.pill--medium,
.pill--p2,
.badge--optional {
  background: var(--info-soft);
  color: var(--info);
}

.badge--done,
.badge--required,
.badge--pass,
.badge--ready,
.badge--planned {
  background: var(--success-soft);
  color: var(--success);
}

.badge--blocked,
.badge--warn,
.pill--high,
.pill--p0,
.pill--p1,
.badge--unavailable {
  background: var(--danger-soft);
  color: var(--danger);
}

.badge--fail,
.badge--external {
  background: var(--warning-soft);
  color: var(--warning);
}

.graph-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--border);
  margin-bottom: 12px;
}

.graph-boundaries {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.runbook-source-bundle {
  padding: 12px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-subtle);
}

.runbook-source-bundle__header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}

.runbook-source-bundle__header > div:first-child {
  display: grid;
  gap: 4px;
}

.runbook-source-bundle__header span,
.muted {
  color: var(--text-muted);
}

.runbook-source-bundle-warning {
  display: grid;
  gap: 6px;
  padding: 12px;
  margin-bottom: 12px;
  border: 1px solid var(--warning);
  border-radius: 8px;
  background: var(--warning-soft);
}

.runbook-source-bundle-warning span {
  color: var(--text-muted);
  font-size: 12px;
}

.runbook-revalidation-detail {
  display: inline-block;
  margin-left: 8px;
  color: var(--text-muted);
  font-size: 12px;
}

.runbook-provenance-only {
  display: grid;
  gap: 4px;
  padding: 12px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-subtle);
}

.runbook-provenance-only span {
  color: var(--text-muted);
  font-size: 12px;
}

.runbook-filter {
  display: grid;
  gap: 10px;
  padding: 12px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-subtle);
}

.runbook-filter__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--text-muted);
  font-size: 12px;
}

.reset-filter-button {
  min-height: 44px;
  padding: 8px 10px;
  font-size: 12px;
}

.reset-filter-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.runbook-filter__group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.runbook-filter__label {
  min-width: 64px;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-width: 92px;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-muted);
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 750;
}

.filter-chip[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.filter-chip strong {
  min-width: 22px;
  color: inherit;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.runbook-line-cell {
  min-width: 320px;
}

.runbook-line-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.row-copy-button {
  min-height: 44px;
  padding: 8px 10px;
  font-size: 12px;
}

.graph-lanes {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr 1.2fr 1.4fr 1.2fr 1fr;
  gap: 8px;
  align-items: start;
}

.graph-lane {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-subtle);
}

.graph-lane__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 38px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
}

.graph-lane ol {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 8px;
  list-style: none;
}

.graph-node {
  display: grid;
  gap: 5px;
  min-height: 86px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  background: var(--surface);
  padding: 8px;
}

.graph-node--audit-category {
  border-left-color: var(--info);
}

.graph-node--mcp-readiness {
  border-left-color: var(--success);
}

.graph-node--refactor-task {
  border-left-color: var(--danger);
}

.graph-node--prompt-template {
  border-left-color: var(--accent);
}

.graph-node--target-repo,
.graph-node--handoff-bundle,
.graph-node--handoff-report {
  border-left-color: var(--warning);
}

.graph-node__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 6px;
}

.graph-node__id {
  overflow-wrap: anywhere;
  color: var(--text-subtle);
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.4;
}

.graph-node strong {
  line-height: 1.35;
}

.graph-node small {
  overflow-wrap: anywhere;
  color: var(--text-muted);
}

.graph-edge-table code {
  color: var(--accent-strong);
  font-family: var(--mono);
  font-size: 11px;
  overflow-wrap: anywhere;
}

.task-list {
  display: grid;
  gap: 10px;
}

.task-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.task-row:last-child {
  border-bottom: 0;
}

.task-row h4 {
  margin: 0 0 4px;
  font-size: 15px;
}

.task-row p {
  margin: 0;
  color: var(--text-muted);
}

.task-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.task-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.button {
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  padding: 8px 12px;
  font-weight: 750;
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.button:hover {
  border-color: var(--border-strong);
  background: var(--surface-subtle);
}

.button--primary {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.button--primary:hover {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
}

.button--danger {
  border-color: #fecaca;
  color: var(--danger);
}

.button--ghost {
  border-color: transparent;
  background: transparent;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.template-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 16px;
}

.template-list {
  display: grid;
  align-content: start;
  gap: 6px;
}

.template-button {
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  padding: 8px 10px;
  text-align: left;
}

.template-button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 750;
}

.output-box {
  width: 100%;
  min-height: 460px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #0f172a;
  color: #e2e8f0;
  padding: 14px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  resize: vertical;
}

.report-preview {
  min-height: 460px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #0f172a;
  color: #e2e8f0;
  padding: 14px;
  overflow: auto;
  white-space: pre-wrap;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
}

.empty-state {
  padding: 28px 16px;
  color: var(--text-muted);
  text-align: center;
}

.notice {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
  padding: 10px 12px;
  margin-bottom: 16px;
}

.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;
}

@media (max-width: 980px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: relative;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .main {
    padding: 16px;
  }

  .topbar,
  .summary-strip,
  .evidence-summary,
  .graph-summary,
  .grid-2,
  .grid-3,
  .form-grid,
  .template-layout {
    grid-template-columns: 1fr;
  }

  .graph-lanes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topbar__meta {
    justify-content: flex-start;
  }
}

@media (max-width: 600px) {
  .nav-list {
    grid-template-columns: 1fr;
  }

  .task-row {
    grid-template-columns: 1fr;
  }

  .task-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .graph-lanes {
    grid-template-columns: 1fr;
  }
}