:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --surface-strong: #f0f4f7;
  --text: #20252b;
  --muted: #5e6875;
  --border: #d9e0e7;
  --accent: #176a73;
  --accent-dark: #104c54;
  --warning: #7a4e13;
  --warning-bg: #fff4df;
  --status-bg: #e7f4f2;
  --shadow: 0 12px 30px rgba(20, 31, 43, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover,
a:focus {
  color: var(--accent);
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 1050px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  gap: 16px 24px;
  align-items: center;
  justify-content: space-between;
}

.brand {
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: center;
  justify-content: flex-end;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
}

.nav-links a[aria-current="page"],
.nav-links a:hover,
.nav-links a:focus {
  color: var(--accent-dark);
}

.page {
  max-width: 1050px;
  margin: 0 auto;
  padding: 48px 24px 56px;
}

.hero {
  padding: 42px 0 34px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.2;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 4rem);
}

h2 {
  margin: 0 0 16px;
  font-size: clamp(1.55rem, 3vw, 2rem);
}

h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

p {
  margin: 0 0 16px;
}

.lead {
  max-width: 780px;
  margin-top: 18px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.secondary-lead {
  margin-top: 10px;
  font-size: 1.02rem;
}

.section {
  margin-top: 42px;
}

.section:first-child {
  margin-top: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

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

.grid + .muted-box {
  margin-top: 18px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.card p:last-child,
.boundary-box p:last-child {
  margin-bottom: 0;
}

.path,
.display-path,
.trace-line,
.code-path {
  display: inline-block;
  max-width: 100%;
  padding: 12px 14px;
  overflow-wrap: anywhere;
  word-break: break-word;
  color: var(--accent-dark);
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.path,
.trace-line,
.code-path {
  font-family: "Courier New", Courier, monospace;
  font-size: 0.95rem;
}

.display-path {
  font-size: 1rem;
  font-weight: 700;
}

.trace-line {
  color: var(--muted);
  font-size: 0.86rem;
}

.note {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.92rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.button {
  display: inline-block;
  padding: 10px 14px;
  color: #ffffff;
  background: var(--accent-dark);
  border: 1px solid var(--accent-dark);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
}

.button.secondary {
  color: var(--accent-dark);
  background: var(--surface);
}

.button:hover,
.button:focus {
  color: #ffffff;
  background: var(--accent);
  border-color: var(--accent);
}

.button.secondary:hover,
.button.secondary:focus {
  color: var(--accent-dark);
  background: var(--surface-strong);
  border-color: var(--accent-dark);
}

.boundary-box {
  padding: 18px 20px;
  color: var(--warning);
  background: var(--warning-bg);
  border: 1px solid #ecd5a8;
  border-radius: 8px;
}

.muted-box {
  padding: 18px 20px;
  color: var(--muted);
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.table-wrap {
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--text);
  background: var(--surface-strong);
  font-size: 0.88rem;
  white-space: nowrap;
}

td {
  color: var(--muted);
  font-size: 0.94rem;
}

tbody tr:nth-child(even) {
  background: #fbfcfd;
}

tr:last-child td {
  border-bottom: 0;
}

.status {
  display: inline-block;
  padding: 0.12rem 0.42rem;
  color: var(--accent-dark);
  background: var(--status-bg);
  border: 1px solid #b9ddd8;
  border-radius: 999px;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.86em;
  font-weight: 700;
  white-space: nowrap;
}

ul,
ol {
  margin-top: 0;
  padding-left: 22px;
}

li + li {
  margin-top: 6px;
}

.flow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.flow span {
  padding: 8px 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.site-footer p {
  max-width: 1050px;
  margin: 0 auto;
  padding: 22px 24px;
  color: var(--muted);
  font-size: 0.92rem;
}

code {
  font-family: "Courier New", Courier, monospace;
  font-size: 0.95em;
  overflow-wrap: anywhere;
  word-break: break-word;
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .page {
    padding: 30px 18px 44px;
  }

  .hero {
    padding: 26px 0 24px;
  }

  .section {
    margin-top: 32px;
  }

  .grid,
  .grid.two {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 18px;
  }

  table {
    min-width: 680px;
  }
}