:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #64748b;
  --line: #e2e8f0;
  --soft: #f8fafc;
  --brand: #1b6b5f;
  --brand-dark: #0f4f46;
  --brand-soft: #dff7f1;
  --panel: #ffffff;
  --warn: #b7791f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--ink);
  background: #f4f7f8;
}

a { color: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 64px;
  padding: 10px 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 280px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  color: #fff;
  background: var(--brand);
  font-weight: 900;
  font-size: 13px;
}

.brand strong { display: block; font-size: 15px; }
.brand small { display: block; margin-top: 2px; color: var(--muted); font-size: 12px; }

.topnav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  overflow-x: auto;
}

.topnav a,
.mode-pill {
  white-space: nowrap;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
}

.topnav a:hover,
.topnav a.active { background: var(--soft); color: var(--ink); }
.mode-pill { background: var(--soft); border: 1px solid var(--line); }
.mode-pill.active { color: var(--brand-dark); background: var(--brand-soft); border-color: #b9efe3; }

main { min-height: calc(100vh - 64px); }

.view { display: none; }
.view.active { display: grid; }

#catalog.view.active {
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 24px;
  padding: 24px;
}

.filters,
.content > *,
.page-panel,
.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.filters {
  position: sticky;
  top: 88px;
  align-self: start;
  padding: 18px;
}

.pane-title,
.toolbar,
.card-head,
.manage-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

h1, h2, h3, p { margin: 0; }
.pane-title h1 { font-size: 18px; }
.pane-title span,
.field span,
.filter-block h2 {
  color: var(--muted);
  font-size: 12px;
}

.field {
  display: grid;
  gap: 7px;
  margin-top: 16px;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 11px;
  font: inherit;
  background: #fff;
}

textarea { resize: vertical; }

.filter-block { margin-top: 18px; }
.tag-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 9px;
}

.tag-grid button,
.toolbar button,
.upload-state button,
.manage-actions button,
.primary {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 10px;
  font: inherit;
  font-size: 13px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.tag-grid button.active {
  border-color: #9ce4d5;
  color: var(--brand-dark);
  background: var(--brand-soft);
  font-weight: 700;
}

.content {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.hero {
  padding: 24px;
}

.hero.compact {
  padding: 0;
  border: 0;
  background: transparent;
}

.hero h2 {
  margin-top: 6px;
  font-size: 28px;
}

.hero p {
  margin-top: 10px;
  max-width: 820px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
}

.eyebrow {
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.boundary-grid,
.flow-grid,
.status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.boundary-grid > div,
.flow-grid article,
.status-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.boundary-grid strong,
.boundary-grid span,
.flow-grid strong,
.flow-grid span,
.status-card strong,
.status-card span {
  display: block;
}

.boundary-grid span,
.flow-grid p,
.status-card p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.flow-grid span {
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 900;
}

.toolbar {
  padding: 16px 18px;
}

.toolbar p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.library-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card {
  display: flex;
  flex-direction: column;
  padding: 18px;
  min-height: 330px;
}

.type,
.version,
.tags span {
  border-radius: 999px;
  padding: 4px 8px;
  background: var(--soft);
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.type {
  color: var(--brand-dark);
  background: var(--brand-soft);
}

.card h3 {
  margin-top: 14px;
  font-size: 17px;
}

.card p {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.6;
  font-size: 13px;
}

dl {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
}

dl div {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 10px;
  font-size: 12px;
}

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

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

.primary {
  margin-top: auto;
  color: #fff;
  background: var(--brand);
  border-color: var(--brand);
  font-weight: 800;
}

.handoff {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 520px);
  gap: 18px;
  padding: 20px;
}

.handoff p {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.65;
  font-size: 13px;
}

pre {
  margin: 0;
  overflow: auto;
  border-radius: 8px;
  padding: 14px;
  background: #0f172a;
  color: #dbeafe;
  font-size: 12px;
}

.page-panel {
  display: grid;
  gap: 18px;
  margin: 24px;
  padding: 24px;
}

.upload-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
  align-items: start;
}

.upload-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.upload-form .field { margin-top: 0; }
.span-2 { grid-column: 1 / -1; }

.upload-state {
  display: grid;
  gap: 8px;
  align-content: start;
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 14px;
  background: var(--soft);
}

.upload-state.active {
  border-style: solid;
  border-color: #9ce4d5;
  background: var(--brand-soft);
}

.upload-state strong { font-size: 14px; }
.upload-state span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.upload-state button:disabled {
  cursor: not-allowed;
  color: var(--muted);
  background: #eef2f7;
}

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

.status-card span {
  margin-top: 8px;
  font-size: 28px;
  color: var(--brand-dark);
  font-weight: 900;
}

.manage-actions {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: var(--soft);
}

.manage-actions span {
  color: var(--muted);
  font-size: 13px;
}

.manage-table {
  display: grid;
}

.empty {
  grid-column: 1 / -1;
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 28px;
  text-align: center;
  color: var(--muted);
  background: #fff;
}

@media (max-width: 1100px) {
  #catalog.view.active { grid-template-columns: 1fr; }
  .filters { position: static; }
  .library-grid,
  .boundary-grid,
  .flow-grid,
  .upload-layout,
  .status-grid,
  .handoff { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .brand { min-width: 0; }
  #catalog.view.active,
  .page-panel { margin: 0; padding: 14px; }
  #catalog.view.active { padding: 14px; }
  .tag-grid,
  .upload-form { grid-template-columns: 1fr; }
}