/* frontdoor rule pages. Builds on /docs/docs.css (tokens, header, footer). */
:root { --code-bg: #f6f7f9; --code-ink: #1f2633; --hl-key: #1b3fa8; --hl-str: #2f7a3d; --hl-num: #a24d12; --hl-com: #6d7480; --hl-kw: #8a2f9e; }
:root[data-theme='dark'] { --code-bg: #0f1219; --code-ink: #d8dce6; --hl-key: #8aaafb; --hl-str: #8fd19e; --hl-num: #f0b072; --hl-com: #8b92a3; --hl-kw: #d59ef0; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) { --code-bg: #0f1219; --code-ink: #d8dce6; --hl-key: #8aaafb; --hl-str: #8fd19e; --hl-num: #f0b072; --hl-com: #8b92a3; --hl-kw: #d59ef0; }
}

.fd-shell { display: grid; grid-template-columns: minmax(0, 760px) 260px; justify-content: center; gap: 72px; padding-block: 28px 80px; }
.fd-shell-index { grid-template-columns: minmax(0, 860px); }
.fd-article { min-width: 0; }

.fd-head { margin-bottom: 36px; }
.fd-head .eyebrow { font-size: 10px; margin-bottom: 13px; text-transform: uppercase; }
.fd-head h1 { font-size: clamp(30px, 3.1vw, 44px); line-height: 1.14; letter-spacing: -.04em; font-weight: 600; margin: 0 0 14px; overflow-wrap: break-word; }
.fd-sub { font-size: 17px; line-height: 1.6; color: var(--ink); margin: 0 0 18px; }
.fd-lead { font-size: 16px; line-height: 1.8; margin: 0 0 14px; }
.fd-meta { display: flex; flex-wrap: wrap; gap: 6px 16px; font: 11px/1.6 var(--mono); color: var(--muted); margin: 0; }
.fd-meta a { color: var(--blue); }

.fd-prose { font-size: 15px; line-height: 1.85; }
.fd-prose h2 { font-size: 24px; letter-spacing: -.03em; font-weight: 600; line-height: 1.25; margin: 44px 0 12px; }
.fd-prose h3 { font-size: 18px; letter-spacing: -.02em; font-weight: 600; margin: 30px 0 8px; }
.fd-prose p, .fd-prose ul, .fd-prose ol { margin: 0 0 16px; }
.fd-prose ul, .fd-prose ol { padding-left: 22px; }
.fd-prose li { margin-bottom: 8px; }
.fd-prose li > .fd-code { margin-top: 12px; }
.fd-prose a, .fd-related a, .fd-cta a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.fd-prose em { color: var(--ink); }

.fd-code { margin: 18px 0 22px; border: 1px solid var(--line); border-radius: 8px; background: var(--code-bg); overflow: hidden; }
.fd-code-bar { display: flex; align-items: center; justify-content: space-between; min-height: 34px; padding: 0 6px 0 14px; border-bottom: 1px solid var(--soft-line); font: 10px/1 var(--mono); color: var(--muted); text-transform: lowercase; }
.fd-copy { font: 11px/1 var(--mono); border: 1px solid var(--line); background: var(--surface); color: var(--ink); border-radius: 5px; padding: 6px 10px; min-height: 28px; }
.fd-copy:hover { border-color: var(--blue); color: var(--blue); }
.fd-code pre { margin: 0; padding: 14px 16px; overflow-x: auto; font: 13px/1.65 var(--mono); color: var(--code-ink); tab-size: 2; }
.fd-code code { font: inherit; color: inherit; background: none; padding: 0; overflow-wrap: normal; }
.hljs-attr { color: var(--hl-key); }
.hljs-string { color: var(--hl-str); }
.hljs-number, .hljs-literal { color: var(--hl-num); }
.hljs-comment { color: var(--hl-com); font-style: italic; }
.hljs-keyword, .hljs-built_in, .hljs-meta { color: var(--hl-kw); }
.hljs-variable, .hljs-template-variable { color: var(--hl-num); }

.fd-table { overflow-x: auto; margin: 18px 0 24px; border: 1px solid var(--line); border-radius: 8px; }
.fd-table table { width: 100%; border-collapse: collapse; font-size: 14px; line-height: 1.6; }
.fd-table caption { text-align: left; padding: 12px 14px 0; font: 11px/1.6 var(--mono); color: var(--muted); }
.fd-table th, .fd-table td { text-align: left; vertical-align: top; padding: 10px 14px; border-bottom: 1px solid var(--soft-line); }
.fd-table thead th { font: 600 11px/1.5 var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.fd-table tr:last-child > * { border-bottom: 0; }
.fd-band-row th { background: var(--hover); font: 600 11px/1.5 var(--mono); color: var(--ink); text-transform: uppercase; letter-spacing: .06em; }
.fd-rule-table th[scope='row'] { font-weight: 400; min-width: 220px; }
.fd-rule-table th[scope='row'] a { display: flex; flex-direction: column; gap: 2px; color: var(--ink); }
.fd-rule-table th[scope='row'] a:hover span { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.fd-rule-table code { align-self: flex-start; }
.fd-rule-table td:last-child { white-space: nowrap; color: var(--muted); }

.fd-related { margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--line); font-size: 15px; }
.fd-related h2 { font-size: 20px; letter-spacing: -.02em; font-weight: 600; margin: 0 0 12px; }
.fd-related ul { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 8px; }
.fd-related li a { text-decoration: none; color: var(--ink); }
.fd-related li a:hover { color: var(--blue); }
.fd-cta { margin: 32px 0 0; padding: 16px 18px; border-left: 2px solid var(--blue); background: var(--blue-soft); font-size: 14px; line-height: 1.75; border-radius: 0 6px 6px 0; }

.fd-rules { position: sticky; top: 120px; align-self: start; max-height: calc(100vh - 140px); overflow-y: auto; font-size: 12px; padding-top: 6px; }
.fd-rules .eyebrow { font-size: 10px; margin-bottom: 8px; }
.fd-band { font: 600 10px/1.6 var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin: 16px 0 6px; }
.fd-rules ul { list-style: none; margin: 0; padding: 0; }
.fd-rules li a { display: flex; gap: 8px; padding: 5px 8px; border-radius: 5px; line-height: 1.45; color: var(--body); }
.fd-rules li a:hover { background: var(--hover); color: var(--ink); }
.fd-rules li a[aria-current] { background: var(--blue-soft); color: var(--ink); }
.fd-rules code { flex-shrink: 0; height: fit-content; }
.fd-rules-home { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; color: var(--blue); font-size: 12px; }
.fd-rules-home svg { width: 14px; height: 14px; }

@media (max-width: 1100px) {
  .fd-shell { grid-template-columns: minmax(0, 760px); gap: 0; }
  .fd-rules { position: static; max-height: none; margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); }
}
@media (max-width: 640px) {
  .fd-shell { padding-block: 12px 56px; }
  .fd-sub { font-size: 16px; }
  .fd-prose { font-size: 15px; }
  .fd-prose h2 { font-size: 21px; margin-top: 36px; }
  .fd-code pre { font-size: 12px; padding: 12px; }
  .fd-table table { font-size: 13px; }
  .fd-rule-table th[scope='row'] { min-width: 170px; }
}

.breadcrumbs span[aria-current] { color: var(--muted); }