:root {
  color-scheme: light;
  --ink: #1b2324;
  --muted: #5f6f6c;
  --paper: #f6f7f2;
  --surface: #ffffff;
  --line: #d9dfd7;
  --sidebar: #101819;
  --sidebar-soft: #1d292a;
  --accent: #007c76;
  --accent-strong: #005f5a;
  --accent-soft: #dff2ef;
  --amber: #f0b429;
  --danger: #b9433b;
  --shadow: 0 18px 48px rgba(19, 31, 32, 0.1);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

code,
pre {
  font-family: "Cascadia Mono", Consolas, "Courier New", monospace;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transform: translateY(-140%);
}

.skip-link:focus {
  transform: translateY(0);
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 280px;
  display: flex;
  flex-direction: column;
  padding: 22px 18px;
  background: var(--sidebar);
  color: #f4fbf9;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand.compact {
  min-width: 230px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: var(--radius);
  background: var(--accent);
  color: #ffffff;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-title,
.brand-subtitle {
  margin: 0;
}

.brand-title {
  font-weight: 800;
}

.brand-subtitle {
  color: #aab8b5;
  font-size: 0.9rem;
}

.nav-list {
  display: grid;
  gap: 6px;
  margin-top: 34px;
}

.nav-link {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: #dce7e4;
  text-decoration: none;
  font-weight: 650;
}

.nav-link:hover,
.nav-link:focus,
.nav-link.is-active {
  background: var(--sidebar-soft);
  color: #ffffff;
}

.sidebar-note {
  margin-top: auto;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  color: #d6e2df;
  font-size: 0.92rem;
}

.sidebar-note p {
  margin: 0;
}

.sidebar-note .version {
  margin-top: 10px;
  color: #a7b5b2;
}

.mobile-bar {
  display: none;
}

.content {
  width: 100%;
  margin-left: 280px;
  padding: 30px clamp(18px, 4vw, 52px) 60px;
}

.intro-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: 28px;
  align-items: center;
  min-height: 430px;
  padding: clamp(22px, 4vw, 42px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.intro-copy {
  max-width: 720px;
  min-width: 0;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
  letter-spacing: 0;
  overflow-wrap: break-word;
}

h1 {
  max-width: 760px;
  font-size: clamp(2rem, 4vw, 3.65rem);
}

h2 {
  font-size: clamp(1.65rem, 2.5vw, 2.35rem);
}

h3 {
  font-size: 1.1rem;
}

.intro-copy p:not(.eyebrow),
.section-heading p,
.plain-card p,
.step-card p,
.memo-grid p {
  color: var(--muted);
}

.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 9px 14px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 760;
  cursor: pointer;
}

.button.primary {
  background: var(--accent);
  color: #ffffff;
}

.button.primary:hover,
.button.primary:focus {
  background: var(--accent-strong);
}

.button.secondary {
  background: var(--accent-soft);
  color: var(--accent-strong);
  border-color: #b9dfd9;
}

.button.ghost {
  min-height: 36px;
  background: transparent;
  color: var(--accent-strong);
  border-color: var(--line);
}

.network-visual {
  margin: 0;
  padding: 0;
}

.network-visual img,
.large-diagram {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f9fbf8;
}

.page-section {
  scroll-margin-top: 24px;
  margin-top: 34px;
}

.section-heading {
  max-width: 920px;
  margin-bottom: 18px;
}

.section-heading.with-action {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  max-width: none;
}

.checklist,
.plain-card,
.step-card,
.search-tool,
.memo-grid article,
.protocol-grid article {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.checklist {
  padding: 18px;
  box-shadow: 0 12px 32px rgba(19, 31, 32, 0.06);
}

.checklist + .step-list,
.checklist + .two-column,
.two-column + .checklist {
  margin-top: 18px;
}

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

.checklist-head p {
  margin: 4px 0 0;
  color: var(--muted);
}

.progress-track {
  height: 8px;
  margin: 14px 0 16px;
  overflow: hidden;
  background: #e7ece4;
  border-radius: 99px;
}

.progress-track span {
  display: block;
  width: 0%;
  height: 100%;
  background: var(--accent);
  transition: width 180ms ease;
}

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

.check-grid label {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  min-height: 46px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfa;
}

.check-grid input {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--accent);
  flex: 0 0 auto;
}

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

.step-card {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 18px;
}

.step-number {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 850;
}

.path {
  display: inline-block;
  margin: 10px 0;
  padding: 8px 10px;
  background: #f2f6f1;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font-weight: 700;
}

ol,
ul {
  padding-left: 1.25rem;
}

.clean-list {
  margin: 12px 0 0;
  color: var(--muted);
}

.clean-list li + li {
  margin-top: 6px;
}

.info-table {
  display: grid;
  gap: 8px;
}

.info-table div {
  display: grid;
  grid-template-columns: minmax(130px, 0.8fr) minmax(0, 1.2fr);
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  background: #f8faf6;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.info-table span {
  color: var(--muted);
}

.compact-table {
  max-width: 720px;
  margin-top: 12px;
}

.code-panel {
  overflow: hidden;
  margin-top: 12px;
  border: 1px solid #cbd5d2;
  border-radius: var(--radius);
  background: #121a1b;
}

.code-title {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  color: #eaf2f0;
  background: #1b2829;
  font-size: 0.9rem;
  font-weight: 760;
}

.code-title button {
  min-width: 76px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  cursor: pointer;
}

pre {
  margin: 0;
  padding: 14px;
  overflow-x: auto;
  color: #e9faf6;
  font-size: 0.9rem;
  line-height: 1.55;
}

.tip {
  border-left: 4px solid var(--amber);
  padding-left: 12px;
}

.two-column,
.schema-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.plain-card {
  padding: 18px;
}

.plain-card h3 + p {
  margin-top: 10px;
}

.schema-layout {
  align-items: start;
}

.protocol-grid,
.trouble-grid,
.memo-grid {
  display: grid;
  gap: 14px;
}

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

.protocol-grid article {
  padding: 16px;
}

.protocol-grid strong,
.protocol-grid span {
  display: block;
}

.protocol-grid span {
  margin-top: 4px;
  color: var(--accent-strong);
  font-weight: 760;
}

.protocol-grid p {
  margin: 10px 0 0;
  color: var(--muted);
}

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

.muted {
  color: var(--muted);
}

.method-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.method-strip span {
  display: grid;
  place-items: center;
  min-height: 48px;
  padding: 8px;
  border: 1px solid #c8ddd8;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 800;
  text-align: center;
}

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

.memo-grid article {
  padding: 16px;
}

.memo-grid code {
  display: inline-block;
  margin-top: 6px;
  padding: 4px 7px;
  border-radius: 6px;
  background: #eef4ec;
  color: var(--accent-strong);
  font-size: 0.9rem;
}

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

.resource-list a {
  display: grid;
  grid-template-columns: minmax(190px, 0.7fr) minmax(0, 1.3fr);
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  text-decoration: none;
}

.resource-list a:hover,
.resource-list a:focus {
  border-color: #9dcfc7;
  box-shadow: 0 10px 24px rgba(0, 124, 118, 0.09);
}

.resource-list span {
  color: var(--muted);
}

.search-tool {
  padding: 18px;
}

.filter-row,
.suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-button,
.suggestions button {
  min-height: 36px;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfa;
  color: var(--ink);
  cursor: pointer;
  font-weight: 700;
}

.filter-button.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.search-label {
  display: block;
  margin-top: 16px;
  font-weight: 780;
}

.search-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  margin-top: 8px;
}

.search-row input {
  min-height: 44px;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfa;
}

.suggestions {
  margin-top: 12px;
}

.results-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.result-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfa;
}

.result-card strong,
.result-card span {
  display: block;
}

.result-card span {
  margin-top: 4px;
  color: var(--muted);
}

.result-card small {
  display: inline-block;
  margin-top: 10px;
  padding: 3px 7px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 780;
}

@media (max-width: 1080px) {
  .app-shell {
    display: block;
  }

  .sidebar {
    display: none;
  }

  .mobile-bar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    padding: 12px 16px;
    background: var(--sidebar);
    color: #ffffff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .content {
    margin-left: 0;
    padding-top: 20px;
  }

  .intro-panel,
  .two-column,
  .schema-layout {
    grid-template-columns: 1fr;
  }

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

  .trouble-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  body {
    font-size: 15px;
  }

  .content {
    padding-inline: 14px;
  }

  .intro-panel {
    min-height: auto;
    padding: 18px;
  }

  h1 {
    font-size: 1.8rem;
    line-height: 1.22;
  }

  h2 {
    font-size: 1.55rem;
  }

  .check-grid,
  .protocol-grid,
  .memo-grid,
  .method-strip {
    grid-template-columns: 1fr;
  }

  .checklist-head,
  .section-heading.with-action {
    align-items: stretch;
    flex-direction: column;
  }

  .step-card {
    grid-template-columns: 1fr;
  }

  .info-table div,
  .resource-list a,
  .search-row {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }
}

@media print {
  body {
    background: #ffffff;
    color: #111111;
  }

  .sidebar,
  .mobile-bar,
  .intro-panel,
  .page-section:not(.print-section),
  .no-print {
    display: none !important;
  }

  .content {
    margin: 0;
    padding: 0;
  }

  .print-section {
    margin: 0;
  }

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