:root {
  --paper: #f3efe7;
  --paper-strong: #e8dfd1;
  --panel: #fffdf8;
  --panel-muted: #f8f4ec;
  --ink: #27312d;
  --muted: #6f746c;
  --line: #ded6ca;
  --green: #2f5d50;
  --green-soft: #e4eee9;
  --terracotta: #bd6b42;
  --terracotta-soft: #f5e1d4;
  --amber: #c49a3a;
  --blue: #5e718f;
  --shadow: 0 18px 45px rgba(62, 52, 39, 0.08);
  color: var(--ink);
  background: var(--paper);
  font-family: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif;
  font-size: 16px;
  letter-spacing: 0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    linear-gradient(90deg, rgba(47, 93, 80, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(47, 93, 80, 0.04) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px;
}

button,
input,
textarea {
  font: inherit;
  letter-spacing: 0;
}

button {
  cursor: pointer;
}

.app-shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 28px;
}

.workspace-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 24px;
  align-items: end;
  min-height: 160px;
}

.workspace-header h1 {
  margin: 6px 0 10px;
  font-size: clamp(2.2rem, 4vw, 4.8rem);
  line-height: 0.96;
  font-weight: 700;
  color: var(--green);
}

.eyebrow {
  margin: 0;
  color: var(--terracotta);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.lede {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
}

.connection-card,
.panel {
  background: color-mix(in srgb, var(--panel) 92%, white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.connection-card {
  display: grid;
  gap: 10px;
  padding: 18px;
}

.connection-card span:last-child {
  color: var(--muted);
  line-height: 1.6;
}

.tab-bar {
  position: sticky;
  top: 0;
  z-index: 3;
  display: flex;
  gap: 8px;
  margin: 24px 0;
  padding: 10px;
  overflow-x: auto;
  background: rgba(243, 239, 231, 0.88);
  border: 1px solid var(--line);
  border-radius: 8px;
  backdrop-filter: blur(12px);
}

.tab-button {
  flex: 0 0 auto;
  padding: 10px 16px;
  color: var(--green);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
}

.tab-button.active {
  color: var(--panel);
  background: var(--green);
  border-color: var(--green);
}

.workspace-main {
  min-height: 620px;
}

.panel {
  padding: 20px;
}

.panel-heading {
  display: grid;
  gap: 6px;
  margin-bottom: 18px;
}

.panel-heading.horizontal {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 16px;
}

.panel h2,
.panel h3 {
  margin: 0;
  color: var(--ink);
}

.panel h2 {
  font-size: 1.28rem;
}

.panel h3 {
  font-size: 0.98rem;
}

.project-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr) 310px;
  gap: 16px;
  align-items: start;
}

.project-list,
.detail-panel {
  position: sticky;
  top: 92px;
}

.project-item,
.draft-card,
.setting-row,
.graph-edge,
.agent-list-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-muted);
}

.project-item {
  display: grid;
  gap: 12px;
  padding: 14px;
  margin-bottom: 10px;
}

.project-item.selected {
  border-color: color-mix(in srgb, var(--green) 52%, var(--line));
  box-shadow: inset 4px 0 0 var(--green);
}

.project-item strong,
.agent-list-item strong,
.draft-card strong,
.setting-row strong {
  display: block;
  margin-bottom: 4px;
}

.project-item span,
.agent-list-item span,
.agent-list-item small,
.draft-card p,
.setting-row p,
.detail-block p,
.empty-state p,
.phase-list p,
.handoff-timeline p,
.graph-edge p {
  margin: 0;
  color: var(--muted);
  line-height: 1.58;
}

.project-item span,
.agent-list-item small {
  word-break: break-all;
}

.project-item dl,
.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
}

.project-item dt,
.detail-grid span {
  color: var(--muted);
  font-size: 0.82rem;
}

.project-item dd,
.detail-grid strong {
  margin: 0;
}

.matrix-panel {
  overflow: hidden;
}

.matrix-table {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.matrix-row {
  display: grid;
  grid-template-columns: minmax(180px, 1.2fr) minmax(220px, 1fr) minmax(170px, 1fr) minmax(150px, 0.8fr) minmax(130px, 0.7fr);
  min-width: 920px;
  border-top: 1px solid var(--line);
}

.matrix-row:first-child {
  border-top: 0;
}

.matrix-row.head {
  color: var(--muted);
  background: var(--paper-strong);
  font-size: 0.86rem;
  font-weight: 700;
}

.matrix-row > span {
  min-width: 0;
  padding: 14px;
  border-left: 1px solid var(--line);
}

.matrix-row > span:first-child {
  border-left: 0;
}

.matrix-row small {
  display: block;
  color: var(--muted);
  margin-top: 4px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  width: fit-content;
  max-width: 100%;
  padding: 6px 8px;
  color: var(--green);
  background: var(--green-soft);
  border: 1px solid color-mix(in srgb, var(--green) 24%, transparent);
  border-radius: 999px;
  font-size: 0.82rem;
  line-height: 1.2;
}

.status-badge small {
  color: var(--muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--green);
}

.status-badge[data-status="unknown"],
.status-badge[data-status="pending"] {
  color: var(--blue);
  background: #edf1f5;
  border-color: #cbd6df;
}

.status-badge[data-status="unknown"] .status-dot,
.status-badge[data-status="pending"] .status-dot {
  background: var(--blue);
}

.status-badge[data-status="idle"] {
  color: var(--muted);
  background: #efebe2;
}

.status-badge[data-status="complete"] {
  color: var(--green);
  background: var(--green-soft);
}

.status-badge[data-status="recent"],
.status-badge[data-status="running"] {
  color: var(--terracotta);
  background: var(--terracotta-soft);
  border-color: #e0b69f;
}

.status-badge[data-status="recent"] .status-dot,
.status-badge[data-status="running"] .status-dot {
  background: var(--terracotta);
}

.read-only-chip {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 6px 10px;
  color: var(--terracotta);
  background: var(--terracotta-soft);
  border: 1px solid #e7c2ad;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 700;
}

.detail-block {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.detail-grid {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.empty-state {
  margin-top: 18px;
  padding: 18px;
  background: #f7f0e6;
  border: 1px dashed #cdbfae;
  border-radius: 8px;
}

.empty-state.compact {
  padding: 14px;
}

.load-state {
  display: grid;
  min-height: 76px;
  place-items: center;
  color: var(--muted);
  background: var(--panel-muted);
  border: 1px dashed var(--line);
  border-radius: 8px;
  font-weight: 700;
}

.error-state {
  border-color: #d8a08a;
  background: #f8e7dd;
}

.sample-fallback {
  margin-top: 14px;
}

.project-item[role="button"]:focus-visible,
.agent-list-item:focus-visible,
.tab-button:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--terracotta) 48%, transparent);
  outline-offset: 2px;
}

.workflow-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 16px;
  align-items: start;
}

.phase-panel,
.graph-panel {
  grid-column: 1;
}

.supervision-panel {
  grid-column: 2;
  grid-row: 1 / span 2;
  position: sticky;
  top: 92px;
}

.phase-list,
.handoff-timeline,
.writeback-steps,
.safety-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.phase-list li {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.phase-list li:first-child {
  border-top: 0;
}

.phase-dot {
  width: 12px;
  height: 12px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--blue);
}

.phase-list li[data-status="complete"] .phase-dot {
  background: var(--green);
}

.phase-list li[data-status="running"] .phase-dot {
  background: var(--terracotta);
}

.phase-list span,
.handoff-timeline span,
.graph-edge small {
  color: var(--muted);
  font-size: 0.82rem;
}

.handoff-timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 18px;
}

.handoff-timeline li:not(:last-child)::before {
  position: absolute;
  left: 6px;
  top: 16px;
  bottom: 0;
  width: 1px;
  content: "";
  background: var(--line);
}

.timeline-marker {
  position: relative;
  z-index: 1;
  width: 13px;
  height: 13px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--panel);
  border: 3px solid var(--terracotta);
}

.timeline-title {
  color: var(--ink) !important;
  font-weight: 700;
}

.graph-list {
  display: grid;
  gap: 12px;
}

.graph-edge {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) 52px minmax(120px, 1fr);
  gap: 10px;
  align-items: center;
  padding: 14px;
}

.graph-edge p,
.graph-edge small {
  grid-column: 1 / -1;
}

.graph-node {
  display: grid;
  place-items: center;
  min-height: 42px;
  padding: 8px;
  text-align: center;
  color: var(--green);
  background: var(--green-soft);
  border: 1px solid #c8dbd2;
  border-radius: 8px;
  font-weight: 700;
}

.graph-node.child {
  color: var(--terracotta);
  background: var(--terracotta-soft);
  border-color: #e5bda6;
}

.graph-link {
  height: 2px;
  background: linear-gradient(90deg, var(--green), var(--terracotta));
}

.agent-layout {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.agent-list {
  position: sticky;
  top: 92px;
}

.search-box {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
}

.search-box span,
.form-grid span {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.search-box input,
.form-grid input,
.form-grid textarea {
  width: 100%;
  padding: 11px 12px;
  color: var(--ink);
  background: var(--panel-muted);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.agent-list-item {
  display: grid;
  width: 100%;
  gap: 4px;
  margin-bottom: 10px;
  padding: 14px;
  text-align: left;
}

.agent-list-item.selected {
  border-color: var(--green);
  background: var(--green-soft);
}

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

.form-grid label {
  display: grid;
  gap: 6px;
}

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

.form-grid textarea {
  resize: vertical;
}

.subtabs {
  display: flex;
  gap: 8px;
  margin: 18px 0 12px;
  overflow-x: auto;
}

.subtabs span {
  flex: 0 0 auto;
  padding: 8px 12px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.subtabs .active {
  color: var(--panel);
  background: var(--green);
  border-color: var(--green);
}

.readonly-code {
  overflow: auto;
  padding: 16px;
  color: #25322d;
  background: #ebe4d8;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.readonly-code pre {
  margin: 0;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  white-space: pre-wrap;
}

.drafts-layout,
.settings-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 16px;
  align-items: start;
}

.draft-list,
.settings-list {
  display: grid;
  gap: 12px;
}

.draft-card {
  display: grid;
  gap: 14px;
  padding: 16px;
}

.draft-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
}

.writeback-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.writeback-steps li {
  display: grid;
  gap: 6px;
  min-width: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.writeback-steps span {
  height: 6px;
  border-radius: 999px;
  background: var(--line);
}

.writeback-steps li.active {
  color: var(--terracotta);
  font-weight: 700;
}

.writeback-steps li.active span {
  background: var(--terracotta);
}

.setting-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(150px, auto) 44px;
  gap: 14px;
  align-items: center;
  padding: 16px;
}

.setting-row > span {
  color: var(--green);
  font-weight: 700;
}

.setting-row i {
  width: 42px;
  height: 24px;
  background: var(--green-soft);
  border: 1px solid #c4d8d0;
  border-radius: 999px;
}

.setting-row i::after {
  display: block;
  width: 18px;
  height: 18px;
  margin: 2px 0 0 19px;
  content: "";
  background: var(--green);
  border-radius: 50%;
}

.setting-row i.off {
  background: #ece7de;
  border-color: var(--line);
}

.setting-row i.off::after {
  margin-left: 2px;
  background: var(--muted);
}

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

.safety-list li {
  padding-left: 14px;
  border-left: 3px solid var(--terracotta);
  color: var(--muted);
  line-height: 1.6;
}

@media (max-width: 1120px) {
  .workspace-header,
  .project-layout,
  .workflow-layout,
  .agent-layout,
  .drafts-layout,
  .settings-layout {
    grid-template-columns: 1fr;
  }

  .project-list,
  .detail-panel,
  .supervision-panel,
  .agent-list {
    position: static;
  }

  .phase-panel,
  .graph-panel,
  .supervision-panel {
    grid-column: auto;
    grid-row: auto;
  }
}

@media (max-width: 700px) {
  .app-shell {
    padding: 16px;
  }

  .workspace-header {
    min-height: 0;
  }

  .panel {
    padding: 16px;
  }

  .panel-heading.horizontal,
  .draft-header,
  .setting-row,
  .form-grid {
    grid-template-columns: 1fr;
  }

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

  .graph-link {
    width: 2px;
    height: 28px;
    justify-self: center;
  }

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

  .status-badge {
    border-radius: 8px;
  }
}