:root {
  color-scheme: light;
  --bg: #f4efe5;
  --paper: #fffdf9;
  --paper-strong: #ffffff;
  --line: #e2d5c1;
  --line-strong: #c7b69c;
  --text: #211b14;
  --muted: #6c5b4b;
  --accent: #9c4d24;
  --accent-soft: #f4d7c2;
  --green: #2b7a47;
  --green-soft: #dff2e4;
  --red: #9e2f24;
  --red-soft: #f8ddd9;
  --blue-soft: #dfeff8;
  --shadow: 0 20px 60px rgba(48, 33, 19, 0.08);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif; color: var(--text); background:
  radial-gradient(circle at top right, rgba(156,77,36,0.08), transparent 26%),
  linear-gradient(180deg, #f8f3ea 0%, var(--bg) 100%);
}
button, input, select { font: inherit; }
button { cursor: pointer; }

.page-shell {
  width: min(1600px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 80px;
}

.topbar, .progress-card, .controls-card, .summary-card, .qa-section {
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(199,182,156,0.72);
  box-shadow: var(--shadow);
}

.topbar {
  border-radius: var(--radius-xl);
  padding: 28px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  color: var(--accent);
  font-weight: 700;
}

h1, h2, h3, h4, p { margin-top: 0; }
h1 { margin-bottom: 12px; font-size: clamp(34px, 6vw, 58px); line-height: 0.96; }
h2 { margin-bottom: 10px; font-size: 28px; }
h3 { margin-bottom: 8px; font-size: 22px; }
.lead { max-width: 980px; margin-bottom: 0; color: var(--muted); font-size: 16px; line-height: 1.6; }

.topbar-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; }
.primary-btn, .ghost-btn, .danger-btn {
  min-height: 46px; padding: 0 18px; border-radius: 999px; border: 1px solid transparent; font-weight: 700;
}
.primary-btn { background: var(--accent); color: white; }
.ghost-btn { background: rgba(255,255,255,0.75); border-color: var(--line); color: var(--text); }
.danger-btn { background: var(--red-soft); color: var(--red); border-color: rgba(158,47,36,0.18); }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.summary-card {
  border-radius: var(--radius-lg);
  padding: 22px;
}

.summary-card span {
  display: block;
  color: var(--muted);
  margin-bottom: 12px;
  font-size: 14px;
}

.summary-card strong { font-size: clamp(28px, 5vw, 42px); }
.summary-card.accent { background: linear-gradient(135deg, #fff4ec, #fffdf9); }

.progress-card, .controls-card {
  border-radius: var(--radius-xl);
  padding: 24px;
  margin-top: 20px;
}

.progress-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.progress-track {
  height: 16px;
  border-radius: 999px;
  background: #efe2d2;
  overflow: hidden;
  margin: 18px 0 10px;
}

.progress-bar {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #ce6a35 0%, #8a3c1b 100%);
  transition: width 180ms ease;
}

.progress-note { margin-bottom: 0; color: var(--muted); }

.controls-grid {
  display: grid;
  grid-template-columns: minmax(280px, 2fr) repeat(2, minmax(180px, 1fr)) auto;
  gap: 14px;
  align-items: end;
}

.control-field, .toggle-field {
  display: grid;
  gap: 8px;
}

.control-field span, .toggle-field span { font-size: 14px; color: var(--muted); font-weight: 600; }
.control-field input, .control-field select {
  min-height: 48px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--paper-strong);
  padding: 0 14px;
}

.toggle-field {
  min-height: 48px;
  align-content: center;
  background: var(--paper-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0 14px;
  grid-auto-flow: column;
  justify-content: start;
  align-items: center;
  gap: 10px;
}

.legend-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.legend-grid div {
  background: rgba(255,255,255,0.68);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px;
}

.legend-grid small {
  display: block;
  color: var(--muted);
  line-height: 1.5;
  margin-top: 10px;
}

.checklist-layout {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.qa-section {
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.qa-section > summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
}

.qa-section > summary::-webkit-details-marker { display: none; }

.section-title-row {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.section-meta {
  display: grid;
  gap: 8px;
}

.section-description {
  color: var(--muted);
  line-height: 1.55;
}

.section-stats {
  min-width: 260px;
  display: grid;
  gap: 10px;
}

.section-stats strong { font-size: 14px; text-align: right; }

.section-progress-track {
  height: 10px;
  border-radius: 999px;
  background: #eadcca;
  overflow: hidden;
}

.section-progress-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #c76937, #8d441f);
}

.section-body {
  padding: 0 24px 24px;
  display: grid;
  gap: 14px;
}

.group-card {
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: var(--radius-lg);
  padding: 18px;
}

.group-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 12px;
}

.group-head p {
  color: var(--muted);
  margin-bottom: 0;
  line-height: 1.5;
}

.group-badge {
  white-space: nowrap;
  background: var(--blue-soft);
  border: 1px solid rgba(53,116,157,0.14);
  color: #174763;
  border-radius: 999px;
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 700;
}

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

.item-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  border: 1px solid rgba(199,182,156,0.55);
  border-radius: var(--radius-md);
  padding: 14px;
  background: rgba(255,255,255,0.84);
}

.item-row.is-done {
  border-color: rgba(43,122,71,0.3);
  background: linear-gradient(180deg, rgba(223,242,228,0.82), rgba(255,255,255,0.88));
}

.item-row input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
}

.item-main {
  display: grid;
  gap: 8px;
}

.item-topline {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.item-title {
  font-weight: 700;
  font-size: 15px;
}

.item-details {
  color: var(--muted);
  line-height: 1.55;
  font-size: 14px;
}

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

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  border-radius: 999px;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 700;
  border: 1px solid transparent;
}

.priority-critical { background: var(--red-soft); color: var(--red); border-color: rgba(158,47,36,0.2); }
.priority-high { background: #fdeecf; color: #8f5a0c; border-color: rgba(143,90,12,0.18); }
.priority-medium { background: #e5efff; color: #224f8f; border-color: rgba(34,79,143,0.18); }
.priority-low { background: #ebf2ea; color: #47634c; border-color: rgba(71,99,76,0.18); }
.tag-pill { background: #f5efe7; color: var(--muted); border-color: rgba(108,91,75,0.14); }
.empty-state {
  text-align: center;
  padding: 42px 20px;
  color: var(--muted);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.55);
}

@media (max-width: 1180px) {
  .summary-grid, .legend-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .controls-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
  .page-shell { width: min(100% - 20px, 100%); padding-top: 16px; }
  .topbar, .progress-card, .controls-card, .qa-section > summary, .section-body { padding-left: 18px; padding-right: 18px; }
  .topbar, .progress-head, .group-head, .qa-section > summary { grid-template-columns: 1fr; display: grid; }
  .summary-grid, .legend-grid, .controls-grid { grid-template-columns: 1fr; }
  .section-stats strong { text-align: left; }
  .item-row { grid-template-columns: 1fr; }
}

.topbar-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.scenario-controls-grid {
  grid-template-columns: minmax(240px, 2fr) repeat(3, minmax(180px, 1fr));
}

.scenario-note-card {
  margin-top: 20px;
  padding: 22px 24px;
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.84);
  border: 1px solid rgba(199,182,156,0.72);
  box-shadow: var(--shadow);
}

.scenario-note-list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.6;
}

.scenario-layout {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.scenario-card {
  padding: 22px;
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.9);
  border: 1px solid rgba(199,182,156,0.72);
  box-shadow: var(--shadow);
  display: grid;
  gap: 16px;
}

.scenario-card.is-done {
  background: linear-gradient(180deg, rgba(223,242,228,0.88), rgba(255,255,255,0.92));
  border-color: rgba(43,122,71,0.28);
}

.scenario-card-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
}

.scenario-card-meta {
  display: grid;
  gap: 10px;
}

.scenario-title-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.scenario-title-row h3 {
  margin-bottom: 0;
}

.scenario-id {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  background: #f4e7da;
  color: var(--accent);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.scenario-objective {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.6;
}

.scenario-check {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--line);
  white-space: nowrap;
  font-weight: 700;
}

.scenario-check input {
  width: 18px;
  height: 18px;
}

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

.scenario-block {
  background: var(--paper);
  border: 1px solid rgba(199,182,156,0.6);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.scenario-block h4 {
  margin-bottom: 10px;
  font-size: 16px;
}

.scenario-list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.65;
}

@media (max-width: 1180px) {
  .scenario-grid,
  .scenario-controls-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 820px) {
  .scenario-card-head,
  .scenario-grid,
  .scenario-controls-grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .scenario-check {
    white-space: normal;
    justify-self: start;
  }
}

.sync-brief-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.sync-brief-card,
.sync-phase-card {
  background: rgba(255,255,255,0.88);
  border: 1px solid rgba(199,182,156,0.72);
  box-shadow: var(--shadow);
  border-radius: var(--radius-xl);
}

.sync-brief-card {
  padding: 22px;
}

.sync-controls-grid {
  grid-template-columns: minmax(280px, 2fr) repeat(3, minmax(180px, 1fr));
}

.sync-layout {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.sync-phase-card {
  padding: 22px;
  display: grid;
  gap: 16px;
}

.sync-phase-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
}

.sync-phase-stats {
  min-width: 240px;
  display: grid;
  gap: 10px;
}

.sync-phase-stats strong {
  text-align: right;
  font-size: 14px;
}

.sync-step-list {
  display: grid;
  gap: 14px;
}

.sync-step-card {
  border: 1px solid rgba(199,182,156,0.65);
  border-radius: var(--radius-lg);
  padding: 18px;
  background: rgba(255,255,255,0.82);
  display: grid;
  gap: 14px;
}

.sync-step-card.is-done {
  background: linear-gradient(180deg, rgba(223,242,228,0.9), rgba(255,255,255,0.88));
  border-color: rgba(43,122,71,0.28);
}

.sync-step-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.sync-step-title-wrap {
  display: grid;
  gap: 10px;
}

.sync-step-title-wrap h3 {
  margin-bottom: 0;
}

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

.sync-role-card {
  background: var(--paper);
  border: 1px solid rgba(199,182,156,0.58);
  border-radius: var(--radius-md);
  padding: 14px;
}

.sync-role-card h4 {
  margin-bottom: 8px;
  font-size: 15px;
}

.sync-role-card p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.6;
}

.sync-expected-card {
  background: #fff7f0;
}

@media (max-width: 1180px) {
  .sync-brief-grid,
  .sync-step-grid,
  .sync-controls-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 820px) {
  .sync-brief-grid,
  .sync-step-grid,
  .sync-controls-grid,
  .sync-phase-head,
  .sync-step-top {
    grid-template-columns: 1fr;
    display: grid;
  }

  .sync-phase-stats strong {
    text-align: left;
  }
}

.role-badge{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;background:#f5efe7;color:#6c5b4b;border:1px solid rgba(108,91,75,0.14);font-size:12px;font-weight:700;}

.page-nav-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.page-nav-card {
  background: rgba(255,255,255,0.88);
  border: 1px solid rgba(199,182,156,0.72);
  box-shadow: var(--shadow);
  border-radius: var(--radius-xl);
  padding: 22px;
  display: grid;
  gap: 12px;
}

.page-nav-card p {
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 0;
}

.page-nav-card .primary-btn,
.page-nav-card .ghost-btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.runbook-layout {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.scenario-details {
  background: rgba(255,255,255,0.88);
  border: 1px solid rgba(199,182,156,0.72);
  box-shadow: var(--shadow);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.scenario-details > summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
}

.scenario-details > summary::-webkit-details-marker {
  display: none;
}

.scenario-summary-meta {
  display: grid;
  gap: 10px;
}

.scenario-summary-meta h2,
.scenario-summary-meta h3 {
  margin-bottom: 0;
}

.scenario-summary-note {
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 0;
}

.scenario-summary-side {
  min-width: 220px;
  display: grid;
  gap: 10px;
  justify-items: end;
}

.scenario-body {
  padding: 0 24px 24px;
  display: grid;
  gap: 16px;
}

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

.scenario-panel,
.subscenario-card,
.testdata-card {
  background: var(--paper);
  border: 1px solid rgba(199,182,156,0.58);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.scenario-panel h4,
.subscenario-card h4,
.testdata-card h3 {
  margin-bottom: 10px;
  font-size: 16px;
}

.scenario-panel p,
.subscenario-card p,
.testdata-card p {
  color: var(--muted);
  line-height: 1.6;
}

.scenario-panel ul,
.scenario-panel ol,
.subscenario-card ul,
.subscenario-card ol,
.testdata-card ul,
.testdata-card ol {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.65;
}

.checkline {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.94);
  border: 1px solid var(--line);
  width: fit-content;
  font-weight: 700;
}

.checkline input {
  width: 18px;
  height: 18px;
}

.scenario-steps {
  display: grid;
  gap: 14px;
}

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

@media (max-width: 1180px) {
  .page-nav-grid,
  .scenario-meta-grid,
  .subscenario-grid,
  .testdata-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 820px) {
  .page-nav-grid,
  .scenario-meta-grid,
  .subscenario-grid,
  .testdata-grid,
  .scenario-details > summary {
    grid-template-columns: 1fr;
    display: grid;
  }

  .scenario-summary-side {
    justify-items: start;
    min-width: 0;
  }
}