/* sapctl — shared styles for sub-pages (legal, security, trust, 404).
   Index.html intentionally keeps its own inline styles for the single-file landing. */

:root {
  --bg:        #0A0A0B;
  --surface:   #111114;
  --line:      #1F1F23;
  --ink:       #FAFAFA;
  --ink2:      #9CA3AF;
  --ink3:      #6B7280;
  --accent:    #3B82F6;
  --ok:        #10B981;
  --warn:      #F59E0B;
  color-scheme: dark;
}

html:not(.dark) {
  --bg:        #FFFFFF;
  --surface:   #FAFAFA;
  --line:      #E5E7EB;
  --ink:       #0A0A0B;
  --ink2:      #4B5563;
  --ink3:      #6B7280;
  color-scheme: light;
}

* { box-sizing: border-box; }

html, body {
  background: var(--bg);
  color: var(--ink);
  margin: 0;
}

body {
  font-family: 'Inter', ui-sans-serif, system-ui, sans-serif;
  font-feature-settings: "cv11", "ss01", "ss03";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
}

::selection { background: var(--accent); color: #fff; }

a { color: inherit; text-decoration: none; transition: color 120ms ease, border-color 120ms ease, background-color 120ms ease; }
a:hover, a:focus-visible { color: var(--ink); }
a.link { color: var(--accent); }
a.link:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.container-x { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.container-narrow { max-width: 760px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

/* ============ Nav ============ */
.site-nav {
  position: sticky; top: 0; z-index: 50;
  height: 64px;
  transition: background-color 120ms ease, border-color 120ms ease;
}
.site-nav.scrolled {
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
  background: color-mix(in oklab, var(--bg) 75%, transparent);
}
.site-nav-inner { height: 100%; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { font-weight: 600; font-size: 18px; letter-spacing: -0.02em; color: var(--ink); }
.brand-ver  { font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, Menlo, monospace; font-size: 12px; color: var(--ink3); }
.nav-links { display: none; gap: 24px; margin-left: 24px; font-size: 14px; }
.nav-links a { color: var(--ink2); }
.nav-links a:hover { color: var(--ink); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.icon-btn {
  width: 36px; height: 36px; display: grid; place-items: center;
  border-radius: 6px; border: 1px solid var(--line); color: var(--ink2);
  background: transparent; cursor: pointer;
}
.icon-btn:hover { color: var(--ink); }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: #fff; font-weight: 500; font-size: 14px;
  padding: 8px 16px; border-radius: 6px; border: 0;
}
.btn-primary:hover { background: #2f6fe0; color: #fff; }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); color: var(--ink); font-weight: 500; font-size: 14px;
  padding: 8px 16px; border-radius: 6px;
}
.btn-secondary:hover { background: var(--surface); color: var(--ink); }
@media (min-width: 768px) { .nav-links { display: flex; } }

/* ============ Page header / breadcrumb ============ */
.page-head {
  border-bottom: 1px solid var(--line);
}
.page-head .container-narrow { padding-top: 64px; padding-bottom: 48px; }
.crumb { font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, Menlo, monospace; font-size: 12px; color: var(--ink3); letter-spacing: 0.04em; text-transform: uppercase; }
.crumb a:hover { color: var(--ink); }
.page-title { font-size: 40px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.1; margin: 12px 0 0; }
.page-sub   { color: var(--ink2); margin-top: 16px; font-size: 18px; max-width: 640px; }
.page-meta  { color: var(--ink3); font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, Menlo, monospace; font-size: 12px; margin-top: 24px; }

@media (max-width: 640px) {
  .page-title { font-size: 32px; }
}

/* ============ Prose ============ */
.prose { color: var(--ink2); font-size: 16px; }
.prose h2 {
  color: var(--ink); font-size: 22px; font-weight: 600; letter-spacing: -0.01em;
  line-height: 1.25; margin: 56px 0 16px;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 {
  color: var(--ink); font-size: 17px; font-weight: 600; line-height: 1.3;
  margin: 32px 0 12px;
}
.prose p, .prose ul, .prose ol { margin: 0 0 16px; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose li::marker { color: var(--ink3); }
.prose a { color: var(--accent); }
.prose a:hover { text-decoration: underline; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, Menlo, monospace;
  font-size: 13px; background: var(--surface); border: 1px solid var(--line);
  padding: 1px 6px; border-radius: 4px; color: var(--ink);
}
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 56px 0; }
.prose blockquote {
  margin: 24px 0; padding: 12px 18px; border-left: 2px solid var(--accent);
  color: var(--ink2); background: var(--surface); border-radius: 0 6px 6px 0;
}
.prose table {
  width: 100%; border-collapse: collapse; margin: 16px 0;
  font-size: 14px;
}
.prose th, .prose td {
  border-bottom: 1px solid var(--line);
  padding: 10px 12px; text-align: left; vertical-align: top;
}
.prose th { color: var(--ink); font-weight: 600; font-size: 13px; }

/* TOC */
.toc {
  border: 1px solid var(--line); border-radius: 8px; padding: 16px 20px;
  background: var(--surface); margin: 0 0 32px;
}
.toc-label { font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, Menlo, monospace; font-size: 11px; color: var(--ink3); text-transform: uppercase; letter-spacing: 0.06em; }
.toc ul { list-style: none; padding: 0; margin: 8px 0 0; columns: 2; column-gap: 32px; }
.toc li { margin: 4px 0; font-size: 14px; }
.toc a { color: var(--ink2); }
.toc a:hover { color: var(--accent); }
@media (max-width: 640px) { .toc ul { columns: 1; } }

/* Cards used on trust + sitemap pages */
.card-grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 700px) { .card-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .card-grid { grid-template-columns: 1fr 1fr 1fr; } }
.card {
  border: 1px solid var(--line); border-radius: 8px; padding: 20px;
  background: var(--surface);
  display: flex; flex-direction: column; gap: 8px;
}
.card .kicker { font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, Menlo, monospace; font-size: 11px; color: var(--ink3); letter-spacing: 0.06em; text-transform: uppercase; }
.card h3 { font-size: 16px; font-weight: 600; margin: 0; color: var(--ink); }
.card p { color: var(--ink2); font-size: 14px; margin: 0; }
.card .row { margin-top: 8px; display: flex; gap: 8px; flex-wrap: wrap; }

.pill {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--line); border-radius: 4px; padding: 2px 8px;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, Menlo, monospace;
  font-size: 11px; color: var(--ink2);
}
.pill.ok { color: var(--ok); border-color: color-mix(in oklab, var(--ok) 40%, var(--line)); }

/* ============ Footer ============ */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  margin-top: 96px;
}
.site-footer .container-x { padding-top: 64px; padding-bottom: 48px; }
.foot-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
@media (min-width: 768px) { .foot-grid { grid-template-columns: repeat(4, 1fr); } }
.foot-col-label { font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, Menlo, monospace; font-size: 12px; color: var(--ink3); text-transform: uppercase; letter-spacing: 0.06em; }
.foot-col ul { list-style: none; padding: 0; margin: 16px 0 0; display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
.foot-col a { color: var(--ink2); }
.foot-col a:hover { color: var(--ink); }
.foot-bottom {
  margin-top: 48px; padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px;
  color: var(--ink3); font-size: 13px;
}
.foot-bottom a:hover { color: var(--ink); }
.foot-social { display: inline-flex; gap: 16px; }

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}