/* The header and footer every kemback.com page shares (ADR 0018): the website's
   pages (served by the API, which prepends this file to /site.css) and the app's
   signed-out pages (imported by SiteChrome.tsx). One file, so they can't drift.
   Light by default; dark when the system is (the website) or the app's theme
   says so (data-theme on <html>). */
:root {
  --bg: #ffffff; --bg-alt: #f6f7fb; --card: #ffffff; --ink: #111827; --ink-2: #374151; --muted: #6b7280;
  --line: #e5e7eb; --accent: #4f46e5; --accent-ink: #ffffff; --accent-soft: #eef2ff;
  --good: #059669; --warn: #b45309; --bad: #dc2626; --radius: 14px; --shadow: 0 1px 2px rgba(17,24,39,.06), 0 8px 24px rgba(17,24,39,.06);
  --max: 1120px;
  --site-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1020; --bg-alt: #111827; --card: #131a2c; --ink: #f3f4f6; --ink-2: #d1d5db; --muted: #9ca3af;
    --line: #253049; --accent: #818cf8; --accent-ink: #0b1020; --accent-soft: #1e1b4b;
    --good: #34d399; --warn: #fbbf24; --bad: #f87171; --shadow: none;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1020; --bg-alt: #111827; --card: #131a2c; --ink: #f3f4f6; --ink-2: #d1d5db; --muted: #9ca3af;
  --line: #253049; --accent: #818cf8; --accent-ink: #0b1020; --accent-soft: #1e1b4b;
  --good: #34d399; --warn: #fbbf24; --bad: #f87171; --shadow: none;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; box-sizing: border-box; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; background: var(--card); padding: 8px 12px; border-radius: 8px; z-index: 10; }

/* header and footer */
.site-header, .site-footer { font-family: var(--site-font); line-height: 1.6; color: var(--ink); }
.site-header a, .site-footer a { color: inherit; }
.site-header { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.header-row { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; text-decoration: none; }
.brand img { display: inline-block; }
.nav { display: flex; gap: 22px; margin-left: 12px; }
.site-header .nav a, .site-header .link-quiet { text-decoration: none; color: var(--ink-2); font-size: .97rem; }
.site-header .nav a:hover, .site-header .link-quiet:hover { color: var(--accent); }
.header-actions { margin-left: auto; display: flex; gap: 16px; align-items: center; }
@media (max-width: 760px) { .nav { display: none; } .header-actions { gap: 12px; } .header-actions .btn { padding: 8px 12px; font-size: .9rem; } }
.site-footer { border-top: 1px solid var(--line); background: var(--bg-alt); padding: 48px 0 24px; margin-top: 48px; font-size: .95rem; }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(4, 1fr); gap: 32px; }
.footer-grid nav { display: flex; flex-direction: column; gap: 8px; }
.footer-grid h2 { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 6px; }
.site-footer .footer-grid a { text-decoration: none; color: var(--ink-2); }
.site-footer .footer-grid a:hover { color: var(--accent); }
.footer-brand p { color: var(--muted); max-width: 32ch; margin: 1em 0; }
.footer-legal { margin-top: 32px; color: var(--muted); font-size: .85rem; }
.footer-legal p { margin: 0; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-brand { grid-column: 1 / -1; } }

/* buttons */
.btn { display: inline-block; padding: 10px 18px; border-radius: 10px; font-weight: 600; text-decoration: none; border: 1px solid transparent; font-size: .97rem; line-height: 1.6; }
.btn-lg { padding: 14px 24px; font-size: 1.05rem; }
.site-header .btn-primary, .btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: var(--card); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* kemback.com's public pages (ADR 0018). Served after apps/web/src/site-chrome.css,
   which holds the colours, header, footer and buttons. No external fonts or scripts. */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 var(--site-font); }
img { max-width: 100%; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); margin: 0 0 .5em; }
h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); }
.narrow { max-width: 760px; }
.center { text-align: center; }
.center-row { justify-content: center; }
.muted { color: var(--muted); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* links */
.link { color: var(--accent); font-weight: 600; text-decoration: none; }
.link:hover { text-decoration: underline; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 8px; }
.fine { color: var(--muted); font-size: .9rem; }
.tag { display: inline-block; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; padding: 3px 8px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); vertical-align: middle; }

/* hero */
.hero { padding: 72px 0 56px; background: radial-gradient(1200px 400px at 70% 0%, var(--accent-soft), transparent); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }
.eyebrow { color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; margin: 0 0 12px; }
.accent { color: var(--accent); }
.lead { font-size: 1.15rem; color: var(--ink-2); }
.page-hero { padding: 64px 0 24px; }

/* the product mock-up in the hero (no screenshots needed) */
.mock { background: var(--card); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); overflow: hidden; }
.mock-bar { display: flex; gap: 6px; padding: 12px 14px; border-bottom: 1px solid var(--line); background: var(--bg-alt); }
.mock-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.mock-body { padding: 18px 20px 22px; font-size: .93rem; }
.mock-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 8px; }
.mock-stats div { border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; }
.mock-stats small { display: block; color: var(--muted); }
.mock-stats strong { font-size: 1.2rem; }
.mock-stats em { display: block; font-style: normal; color: var(--muted); font-size: .82rem; }
.mock-stats .up { color: var(--good); }
.mock-h { margin: 16px 0 6px; font-weight: 700; color: var(--ink-2); }
.mock-line { display: flex; justify-content: space-between; margin-top: 8px; }
.amt { color: var(--muted); font-variant-numeric: tabular-nums; }
.amt.warn { color: var(--warn); } .amt.over { color: var(--bad); }
.meter { height: 8px; border-radius: 99px; background: var(--line); overflow: hidden; margin-top: 4px; }
.meter i { display: block; height: 100%; border-radius: 99px; }
.m-under { background: var(--good); } .m-near { background: var(--warn); } .m-over { background: var(--bad); }

.strip { border-block: 1px solid var(--line); background: var(--bg-alt); }
.strip-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 32px; padding: 16px 20px; color: var(--ink-2); font-weight: 600; font-size: .93rem; }

/* sections */
.section { padding: 64px 0; }
.section.tight { padding-top: 16px; }
.section.alt { background: var(--bg-alt); }
.section-title { text-align: center; margin: 0 0 32px; }
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 900px) { .pillars { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .pillars { grid-template-columns: 1fr; } }
.pillar, .feature, .plan, .post-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.pillar h3 { margin: 0 0 8px; color: var(--accent); }
.pillar p, .feature p { margin: 0; color: var(--ink-2); }
.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.split.reverse > :first-child { order: 2; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } .split.reverse > :first-child { order: 0; } }
.split h2 { margin-top: 0; }
.card-list { display: grid; gap: 12px; }
.mini { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; display: flex; flex-direction: column; box-shadow: var(--shadow); }
.mini span { color: var(--muted); font-size: .93rem; }
.mini.ok b { color: var(--good); }
.ticks { list-style: none; padding: 0; margin: 16px 0; }
.ticks li { padding-left: 28px; position: relative; margin: 8px 0; }
.ticks li::before { content: "\2713"; position: absolute; left: 0; color: var(--good); font-weight: 700; }
.ticks.two-col { columns: 2; } @media (max-width: 600px) { .ticks.two-col { columns: 1; } }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .feature-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .feature-grid { grid-template-columns: 1fr; } }
.feature h2 { font-size: 1.12rem; margin: 0 0 8px; }
.feature.soon { border-style: dashed; }

/* pricing */
.pricing-teaser, .plans { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 860px; margin: 0 auto; }
.plans { grid-template-columns: repeat(3, 1fr); max-width: var(--max); }
@media (max-width: 900px) { .plans, .pricing-teaser { grid-template-columns: 1fr; } }
.plan h2, .plan h3 { margin: 0; }
.plan.featured { border: 2px solid var(--accent); }
.plan.muted { opacity: .92; }
.price { font-size: 2rem; font-weight: 800; margin: 8px 0 12px; }
.price small { font-size: .95rem; font-weight: 500; color: var(--muted); }

/* FAQ, steps, comparison */
.faq { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin: 10px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { margin: 10px 0 0; color: var(--ink-2); }
.steps { padding-left: 1.2em; } .steps li { margin: 12px 0; }
.compare { width: 100%; border-collapse: collapse; background: var(--card); border-radius: 12px; overflow: hidden; }
.compare th, .compare td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.compare th { background: var(--bg-alt); }
.final-cta h2 { margin-top: 0; }

/* blog */
.chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 28px; }
.chips a { text-decoration: none; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; font-size: .9rem; color: var(--ink-2); background: var(--card); }
.chips a[aria-current="page"], .chips a:hover { border-color: var(--accent); color: var(--accent); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .cards { grid-template-columns: 1fr; } }
.post-card { display: flex; flex-direction: column; }
.post-card h3 { margin: 8px 0; font-size: 1.12rem; }
.post-card h3 a { text-decoration: none; }
.post-card h3 a:hover { color: var(--accent); }
.post-card p { margin: 0 0 8px; color: var(--ink-2); font-size: .95rem; }
.post-card .byline { margin-top: auto; }
.cat { color: var(--accent); font-weight: 700; font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; text-decoration: none; }
.byline { color: var(--muted); font-size: .9rem; }
.pager { display: flex; justify-content: center; gap: 24px; margin-top: 32px; }
.pager a { color: var(--accent); text-decoration: none; font-weight: 600; }
.post-head { padding-top: 48px; }
.crumbs { font-size: .9rem; color: var(--muted); margin-bottom: 12px; }
.crumbs a { color: var(--muted); }
.post-grid { display: grid; grid-template-columns: 240px minmax(0, 760px); gap: 48px; justify-content: center; margin-top: 16px; }
.post-grid:not(:has(.toc)) { grid-template-columns: minmax(0, 760px); }
@media (max-width: 1000px) { .post-grid { grid-template-columns: minmax(0, 760px); } .toc { display: none; } }
.toc { position: sticky; top: 88px; align-self: start; font-size: .92rem; }
.toc p { font-weight: 700; margin: 0 0 8px; }
.toc ol { padding-left: 1.1em; margin: 0; } .toc li { margin: 6px 0; } .toc a { color: var(--ink-2); text-decoration: none; } .toc a:hover { color: var(--accent); }
.prose { font-size: 1.06rem; color: var(--ink); }
.prose h2 { margin-top: 2em; scroll-margin-top: 80px; }
.prose h3 { margin-top: 1.6em; scroll-margin-top: 80px; }
.prose a { color: var(--accent); }
.prose table { border-collapse: collapse; width: 100%; margin: 1em 0; font-size: .95rem; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; }
.prose blockquote { margin: 1em 0; padding: 4px 16px; border-left: 4px solid var(--accent); background: var(--bg-alt); border-radius: 0 8px 8px 0; }
.prose code { background: var(--bg-alt); padding: 1px 6px; border-radius: 6px; font-size: .92em; }
.post-cta { margin: 40px 0 24px; padding: 24px; border-radius: var(--radius); background: var(--accent-soft); }
.post-cta h2 { margin: 0 0 8px; font-size: 1.25rem; }
.tags span { color: var(--muted); font-size: .9rem; margin-right: 6px; }
.disclaimer { color: var(--muted); font-size: .88rem; border-top: 1px solid var(--line); padding-top: 16px; }
.text-page { padding: 48px 20px; }
.text-page .prose h2 { font-size: 1.3rem; }