:root {
  color-scheme: light;
  --bg: #f7f5f0;
  --panel: #ffffff;
  --ink: #1c1f24;
  --muted: #666f7a;
  --line: #d9d3c8;
  --soft: #ece7dc;
  --accent: #0f766e;
  --accent-soft: #d9f2ee;
  --warn: #9a5b13;
  --warn-soft: #fff1cf;
  --ok: #386641;
  --shadow: 0 1px 2px rgba(28, 31, 36, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.45;
}

a {
  color: var(--accent);
  overflow-wrap: anywhere;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

aside {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  padding: 24px 20px;
  overflow: auto;
  background: #f2eee5;
  border-right: 1px solid var(--line);
}

main {
  width: 100%;
  max-width: 1480px;
  padding: 28px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-size: 30px;
}

h2 {
  margin: 36px 0 12px;
  font-size: 20px;
}

h3 {
  margin-bottom: 8px;
  font-size: 16px;
}

.lede {
  max-width: 760px;
  margin-bottom: 18px;
  color: var(--muted);
}

.search-box {
  display: grid;
  gap: 8px;
  margin: 20px 0;
}

input[type="search"] {
  width: 100%;
  padding: 12px 14px;
  color: var(--ink);
  font: inherit;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

nav a {
  display: block;
  padding: 7px 0;
  color: var(--ink);
}

.meta-grid,
.persona-grid,
.mode-stack,
.guide-grid,
.arch-grid,
.doc-grid,
.route-grid,
.folder-grid {
  display: grid;
  gap: 12px;
}

.meta-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 18px 0 28px;
}

.guide-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.persona-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mode-stack {
  grid-template-columns: 1fr;
}

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

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

.metric,
.mode-panel,
.persona-card,
.guide-card,
.arch-card,
.doc-card,
.route-card,
.folder-card,
.flow-step,
.note,
.term {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.metric,
.mode-panel,
.persona-card,
.guide-card,
.arch-card,
.doc-card,
.route-card,
.folder-card,
.flow-step,
.note,
.term {
  padding: 14px;
}

.metric strong {
  display: block;
  font-size: 22px;
}

.metric span,
.mini-label,
.muted {
  color: var(--muted);
  font-size: 13px;
}

.mode-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(300px, 1.25fr);
  gap: 18px;
  border-color: #b7d8d2;
  background: #fbfefd;
}

.mode-panel h3 {
  margin: 4px 0 8px;
}

.mode-panel p {
  margin: 0;
  color: var(--muted);
}

.mode-panel .step-list {
  margin-bottom: 8px;
}

.mode-panel-updated {
  animation: mode-panel-pulse 650ms ease-out;
}

@keyframes mode-panel-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(15, 118, 110, 0.28);
  }
  100% {
    box-shadow: 0 0 0 8px rgba(15, 118, 110, 0);
  }
}

.guide-card,
.arch-card,
.doc-card,
.route-card,
.folder-card {
  padding: 16px;
}

.persona-card {
  display: grid;
  gap: 8px;
  width: 100%;
  text-align: left;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

.persona-card.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.persona-title {
  font-weight: 700;
}

.persona-summary {
  color: var(--muted);
  font-size: 14px;
}

.guide-card p,
.arch-card p,
.doc-card p,
.route-card p,
.folder-card p {
  margin-bottom: 12px;
  color: var(--muted);
}

.compact {
  margin-bottom: 10px;
}

.guide-time {
  display: inline-flex;
  padding: 3px 8px;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  background: var(--accent-soft);
  border-radius: 999px;
}

.step-list {
  padding-left: 20px;
  margin: 8px 0 12px;
}

.step-list li {
  padding-left: 2px;
}

.touch {
  padding-left: 10px;
  border-left: 3px solid var(--accent);
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 6px 0 12px;
}

.link-row a,
.pill {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  padding: 4px 8px;
  font-size: 13px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.pill strong {
  margin-right: 4px;
}

.flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(160px, 1fr));
  gap: 10px;
  padding-bottom: 4px;
  overflow-x: auto;
}

.flow-step {
  min-height: 160px;
}

.flow-title {
  margin-bottom: 8px;
  font-weight: 700;
}

.card-head {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  justify-content: space-between;
}

.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

details {
  padding-top: 10px;
  margin-top: 12px;
  border-top: 1px solid var(--line);
}

summary {
  font-weight: 700;
  cursor: pointer;
}

.split-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 10px;
}

ul {
  padding-left: 18px;
  margin: 6px 0 0;
}

li {
  margin: 6px 0;
}

li span {
  color: var(--muted);
  font-size: 13px;
}

table {
  width: 100%;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-collapse: collapse;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

th,
td {
  padding: 10px;
  font-size: 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  background: #eee8dc;
}

.warn,
.ok {
  display: inline-flex;
  padding: 3px 7px;
  margin-right: 4px;
  font-size: 12px;
  border-radius: 999px;
}

.warn {
  color: var(--warn);
  background: var(--warn-soft);
}

.ok {
  color: var(--ok);
  background: var(--accent-soft);
}

.note {
  margin-top: 12px;
}

dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

dt {
  margin-bottom: 4px;
  font-weight: 700;
}

dd {
  margin: 0;
  color: var(--muted);
}

.empty-state {
  display: none;
  padding: 14px;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 8px;
}

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

  aside {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  main {
    padding: 20px;
  }

  .meta-grid,
  .persona-grid,
  .mode-panel,
  .guide-grid,
  .arch-grid,
  .doc-grid,
  .route-grid,
  .folder-grid,
  dl {
    grid-template-columns: 1fr;
  }

  .flow {
    grid-template-columns: repeat(5, 240px);
  }

  .card-head {
    display: block;
  }

  .stat-row {
    justify-content: flex-start;
  }

  .split-list {
    grid-template-columns: 1fr;
  }
}