* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  color-scheme: light;
  --navy-900: #0a1628;
  --navy-700: #0f2a5e;
  --navy-500: #1d3d8f;
  --navy-200: #dbeafe;
  --stone-100: #f8fafc;
  --stone-200: #e2e8f0;
  --stone-600: #475569;
  --white: #ffffff;
  --critical: #fef2f2;
  --critical-border: #fca5a5;
  --callout: #eff6ff;
  --callout-border: #93c5fd;
}

body {
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(circle at top left, #eff6ff 0%, #f8fafc 45%, #eef2ff 100%);
  color: var(--navy-900);
  line-height: 1.6;
}

body.is-locked {
  overflow: hidden;
}

.app {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 100vh;
}

body.is-locked .app {
  filter: blur(6px);
  pointer-events: none;
  user-select: none;
}

.login-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 22, 40, 0.75);
  display: grid;
  place-items: center;
  z-index: 999;
  padding: 20px;
}

body:not(.is-locked) .login-overlay {
  display: none;
}

.login-card {
  background: var(--white);
  padding: 28px;
  border-radius: 20px;
  width: min(420px, 90vw);
  box-shadow: 0 24px 50px rgba(10, 22, 40, 0.35);
  border: 1px solid rgba(10, 22, 40, 0.1);
}

.login-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.7rem;
  color: var(--stone-600);
  margin-bottom: 8px;
}

.login-subtitle {
  color: var(--stone-600);
  margin-bottom: 16px;
}

#loginForm {
  display: grid;
  gap: 12px;
}

#loginForm label {
  font-weight: 600;
}

#loginForm input {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--stone-200);
  font-size: 1rem;
}

#loginForm button {
  background: var(--navy-700);
  color: var(--white);
  border: none;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 1rem;
  cursor: pointer;
}

#loginForm button:hover {
  background: var(--navy-500);
}

.login-error {
  color: #b42318;
  min-height: 1.2em;
}

.sidebar {
  background: #0a1628;
  color: var(--white);
  padding: 24px 20px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.7rem;
  opacity: 0.7;
  margin-bottom: 8px;
}

.brand__title {
  font-size: 1.2rem;
  margin-bottom: 8px;
  line-height: 1.3;
}

.brand__subtitle {
  font-size: 0.9rem;
  opacity: 0.75;
  margin-bottom: 20px;
}

.search input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: none;
  font-size: 0.95rem;
  margin-bottom: 16px;
  background: rgba(255,255,255,0.12);
  color: #fff;
}

.search input::placeholder {
  color: rgba(255,255,255,0.5);
}

.nav {
  display: grid;
  gap: 10px;
}

.nav-section,
.nav-subsection {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 8px 8px 4px;
}

.nav-section summary,
.nav-subsection summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  padding: 6px 6px 8px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.85;
}

.nav-section summary::-webkit-details-marker,
.nav-subsection summary::-webkit-details-marker {
  display: none;
}

.nav-subsection summary {
  text-transform: none;
  letter-spacing: 0;
  opacity: 0.9;
  font-size: 0.9rem;
}

.nav-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: #cfe0ff;
  cursor: pointer;
  font-size: 0.88rem;
  margin-bottom: 4px;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

.nav-item.is-active {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.25);
  font-weight: 600;
  color: #fff;
}

.nav-item.is-hidden,
.nav-section.is-hidden,
.nav-subsection.is-hidden {
  display: none;
}

.content {
  padding: 32px 36px 80px;
}

.doc-section {
  display: none;
  background: rgba(255, 255, 255, 0.97);
  padding: 30px;
  border-radius: 24px;
  box-shadow: 0 12px 30px rgba(10, 22, 40, 0.07);
  border: 1px solid rgba(10, 22, 40, 0.07);
  margin-bottom: 24px;
}

.doc-section.is-active {
  display: block;
}

.doc-section h2 {
  font-size: 1.65rem;
  margin-bottom: 8px;
  color: var(--navy-700);
}

.doc-section h3 {
  margin: 20px 0 8px;
  font-size: 1.1rem;
  color: var(--navy-700);
  border-bottom: 1px solid var(--stone-200);
  padding-bottom: 4px;
}

.doc-section h4 {
  margin: 14px 0 6px;
  font-size: 1rem;
  color: var(--navy-500);
}

.doc-section p {
  margin-bottom: 10px;
  color: #1e293b;
}

.doc-section ul,
.doc-section ol {
  margin-left: 20px;
  margin-bottom: 12px;
  color: #1e293b;
}

.doc-section li {
  margin-bottom: 4px;
}

.section-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.7rem;
  color: var(--stone-600);
  margin-bottom: 4px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.stat-card {
  background: var(--callout);
  border: 1px solid var(--callout-border);
  border-radius: 14px;
  padding: 14px 16px;
  text-align: center;
}

.stat-card__number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--navy-700);
  line-height: 1;
}

.stat-card__label {
  font-size: 0.78rem;
  color: var(--stone-600);
  margin-top: 4px;
}

.callout {
  background: var(--callout);
  border-left: 4px solid var(--navy-500);
  border-radius: 0 12px 12px 0;
  padding: 14px 16px;
  margin: 14px 0;
}

.callout.critical {
  background: var(--critical);
  border-left-color: #dc2626;
}

.callout.warning {
  background: #fffbeb;
  border-left-color: #d97706;
}

.callout strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.callout.critical strong {
  color: #dc2626;
}

.callout.warning strong {
  color: #d97706;
}

.pipeline-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--navy-200);
  color: var(--navy-700);
  margin-bottom: 12px;
}

.pipeline-badge.b2b {
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #86efac;
}

.pipeline-badge.b2c {
  background: #eff6ff;
  color: #1e40af;
  border: 1px solid #93c5fd;
}

.stage-router {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.stage-router select {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--stone-200);
  font-size: 1rem;
  background: #fff;
}

.stage-router__summary {
  font-weight: 600;
  color: var(--navy-700);
}

.stage-router__links {
  display: grid;
  gap: 10px;
}

.stage-router__links ul {
  margin-left: 18px;
}

.table-wrap {
  overflow-x: auto;
  margin: 12px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th,
td {
  border: 1px solid var(--stone-200);
  padding: 10px 12px;
  vertical-align: top;
}

th {
  background: var(--navy-200);
  text-align: left;
  color: var(--navy-700);
  font-size: 0.85rem;
}

tr:hover td {
  background: #f8faff;
}

.tag-pill {
  display: inline-block;
  background: #f1f5f9;
  border: 1px solid var(--stone-200);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.8rem;
  font-family: "Courier New", monospace;
  color: #1e40af;
  margin: 2px;
}

.workflow-card {
  background: var(--stone-100);
  border: 1px solid var(--stone-200);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
}

.workflow-card h4 {
  margin: 0 0 6px 0;
  color: var(--navy-700);
  font-size: 0.95rem;
}

.workflow-card .trigger-label {
  font-size: 0.8rem;
  color: var(--stone-600);
  margin-bottom: 10px;
  display: block;
}

.workflow-card ol {
  margin-left: 18px;
  font-size: 0.88rem;
}

.outcome-table td:first-child {
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  color: #1e40af;
  white-space: nowrap;
}

@media (max-width: 1000px) {
  .app {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }
}