/* Shared styles for the carrier guide pages (same tokens as index.html). */
:root {
  --bg: #f4f5f2;
  --bg-elev: #ffffff;
  --ink: #14181c;
  --ink-soft: #3d474f;
  --muted: #6b757c;
  --line: #d8ddd6;
  --accent: #1a6b4a;
  --accent-ink: #0f3f2c;
  --code-bg: #eef1ec;
  --code-dark: #1c2328;
  --code-dark-ink: #e6ebe8;
  --shadow: 0 1px 0 rgba(20, 24, 28, 0.04);
  --radius: 6px;
  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "Source Sans 3", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --max: 920px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #e7efe8 0%, transparent 55%),
    var(--bg);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-ink); text-underline-offset: 3px; }
a:hover { color: var(--accent); }

.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

/* —— Nav —— */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 1.25rem 0 0;
  gap: 0.75rem 1rem;
}
.nav-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}
.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 1.1rem;
  font-size: 0.95rem;
}
.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 500;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--ink); }
.nav-links a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
}

/* —— Header —— */
.crumbs {
  margin: 2.75rem 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.crumbs li + li::before { content: "/"; margin-right: 0.4rem; color: var(--line); }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--ink); }

h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5.5vw, 3rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin: 0 0 1rem;
}
.lead {
  max-width: 40rem;
  margin: 0 0 1.75rem;
  font-size: 1.18rem;
  color: var(--ink-soft);
}

/* —— Sections —— */
section {
  padding: 2.75rem 0;
  border-top: 1px solid var(--line);
}
section:first-of-type { border-top: none; padding-top: 0.5rem; }
h2 {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: clamp(1.4rem, 3vw, 1.75rem);
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin: 0 0 0.75rem;
}
h3 {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  margin: 1.75rem 0 0.6rem;
}
section > p { max-width: 42rem; color: var(--ink-soft); }
ul.notes { padding-left: 1.2rem; color: var(--ink-soft); max-width: 44rem; }
ul.notes li { margin: 0.4rem 0; }
ul.notes strong { color: var(--ink); }

code, .mono {
  font-family: var(--font-mono);
  font-size: 0.86em;
}
p code, li code, td code {
  background: var(--code-bg);
  padding: 0.08rem 0.35rem;
  border-radius: 3px;
}

/* —— Code panels —— */
.panel {
  margin: 1rem 0;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--line);
  background: #fafbf8;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
}
.copy {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.2rem 0.55rem;
  cursor: pointer;
}
.copy:hover { color: var(--ink); border-color: var(--ink-soft); }
.copy.ok { color: var(--accent); border-color: #b7d4c4; }
pre {
  margin: 0;
  padding: 1rem 1.1rem 1.15rem;
  overflow-x: auto;
  background: var(--code-dark);
  color: var(--code-dark-ink);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.6;
}
pre.light { background: var(--code-bg); color: var(--ink); }

/* Syntax colours (same palette as index.html) */
.c-key { color: #8fb9a4; }
.c-str { color: #d4b483; }
.c-num { color: #9db4d0; }
.c-cmt { color: #7a858c; font-style: italic; }
.c-fn { color: #82b4f0; }
.c-var { color: #c7a6d9; }
.c-type { color: #7fc4c4; }

.install-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr 1fr;
}
.install-grid .panel { margin: 0; }
@media (max-width: 720px) {
  .install-grid { grid-template-columns: 1fr; }
}

/* —— Tables —— */
.table-wrap {
  overflow-x: auto;
  margin: 1rem 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev);
  box-shadow: var(--shadow);
}
table { width: 100%; border-collapse: collapse; font-size: 0.93rem; }
th, td {
  padding: 0.65rem 0.85rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
  background: #fafbf8;
  white-space: nowrap;
}
tr:last-child td { border-bottom: none; }
td.ok { color: var(--accent-ink); font-weight: 600; }
td.no { color: var(--muted); }

.callout {
  margin: 1.25rem 0;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--accent);
  background: #e9f0ea;
  color: var(--ink-soft);
  max-width: 44rem;
}
.callout strong { color: var(--ink); }

/* —— FAQ —— */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); padding: 0.9rem 0; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--ink); }
.faq details p { margin: 0.55rem 0 0; max-width: 44rem; color: var(--ink-soft); }

/* —— Links —— */
.doc-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}
.doc-links a {
  display: inline-flex;
  padding: 0.55rem 0.85rem;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.92rem;
  box-shadow: var(--shadow);
}
.doc-links a:hover { border-color: var(--ink-soft); color: var(--accent-ink); }

/* —— Foot —— */
footer {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}
footer .row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}
footer strong { font-family: var(--font-display); color: var(--ink); font-weight: 650; }
footer a { color: var(--ink-soft); text-decoration: none; font-weight: 500; }
footer a:hover { color: var(--ink); }