/* FinTechCo brand — Stripe-inspired fintech aesthetic. Light default, dark opt-in. */
:root {
  --bg: #ffffff;
  --surface: #f6f9fc;
  --panel: #ffffff;
  --ink: #0a2540;
  --slate: #425466;
  --accent: #635bff;
  --accent-ink: #ffffff;
  --border: #e6ebf1;
  --shadow: 0 1px 3px rgba(10,37,64,.06), 0 6px 24px rgba(10,37,64,.05);
  --prio-a: #df1b41; --prio-b: #d97706; --prio-c: #1a936f;
  --pass: #1a936f; --fail: #df1b41; --skip: #d97706;
  --radius: 8px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
[data-theme="dark"] {
  --bg: #0b1523;
  --surface: #0b1523;
  --panel: #16243a;
  --ink: #e6ebf1;
  --slate: #9fb3c8;
  --accent: #8f88ff;
  --accent-ink: #0b1523;
  --border: #22314a;
  --shadow: 0 1px 3px rgba(0,0,0,.3), 0 6px 24px rgba(0,0,0,.35);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--font); background: var(--surface); color: var(--ink);
  line-height: 1.6; -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header / nav */
.site-header {
  position: sticky; top: 0; z-index: 50; background: var(--bg);
  border-bottom: 1px solid var(--border); backdrop-filter: saturate(180%) blur(8px);
}
.header-inner {
  max-width: 1080px; margin: 0 auto; padding: 0 24px; height: 60px;
  display: flex; align-items: center; gap: 20px;
}
.brand-mark { font-weight: 700; letter-spacing: -.02em; color: var(--ink); font-size: 18px; }
.brand-mark .accent { color: var(--accent); }
.nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav a {
  padding: 6px 12px; border-radius: 6px; color: var(--slate); font-size: 14px; font-weight: 500;
}
.nav a:hover { background: var(--surface); text-decoration: none; }
.nav a.active { color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.theme-toggle {
  border: 1px solid var(--border); background: var(--panel); color: var(--ink);
  width: 36px; height: 36px; border-radius: 8px; cursor: pointer; font-size: 16px; line-height: 1;
}
.theme-toggle:hover { border-color: var(--accent); }

/* Layout */
main.wrap { max-width: 1080px; margin: 0 auto; padding: 40px 24px 80px; }
.hero { padding: 8px 0 24px; }
.hero h1 { font-size: 34px; line-height: 1.15; letter-spacing: -.02em; margin: 0 0 12px; }
.hero p.lede { font-size: 18px; color: var(--slate); max-width: 70ch; margin: 0; }
.muted { color: var(--slate); }
h2 { font-size: 24px; letter-spacing: -.01em; margin: 40px 0 12px; }
h3 { font-size: 18px; margin: 28px 0 8px; }
p, li { color: var(--ink); }

.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow); margin: 16px 0;
}
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.pill {
  display: inline-block; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent);
}
.btn-primary {
  background: var(--accent); color: var(--accent-ink); border: none; border-radius: 8px;
  padding: 10px 18px; font-size: 15px; font-weight: 600; cursor: pointer; font-family: var(--font);
}
.btn-primary:hover { filter: brightness(1.05); }
.btn-secondary {
  background: var(--panel); color: var(--ink); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 14px; font-size: 14px; font-weight: 500; cursor: pointer; font-family: var(--font);
}
.btn-secondary:hover { border-color: var(--accent); }
.btn-secondary.sel { border-color: var(--accent); color: var(--accent); }

input, textarea, select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--panel); color: var(--ink); font-family: var(--font); font-size: 15px;
}
label { display: block; font-size: 13px; font-weight: 600; color: var(--slate); margin: 12px 0 6px; }

/* Priority + status color coding */
.prio { font-weight: 700; padding: 2px 9px; border-radius: 6px; font-size: 12px; color: #fff; }
.prio-A { background: var(--prio-a); }
.prio-B { background: var(--prio-b); }
.prio-C { background: var(--prio-c); }
.status-pass { color: var(--pass); font-weight: 600; }
.status-fail { color: var(--fail); font-weight: 600; }
.status-skip { color: var(--skip); font-weight: 600; }
.dot { display:inline-block; width:9px; height:9px; border-radius:50%; margin-right:6px; }
.dot.pass{background:var(--pass);} .dot.fail{background:var(--fail);} .dot.skip{background:var(--skip);}

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--slate); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
code, pre { font-family: var(--mono); font-size: 13px; }
pre { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 14px; overflow-x: auto; }
code.inline { background: var(--surface); padding: 1px 6px; border-radius: 4px; }

/* Login */
.login-body { display: grid; place-items: center; min-height: 100vh; padding: 24px; }
.login-card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  box-shadow: var(--shadow); padding: 40px; max-width: 420px; width: 100%; }
.login-card h1 { font-size: 22px; margin: 12px 0; }
.login-card .brand-mark { font-size: 15px; }
.login-footer { margin-top: 24px; font-size: 12px; color: var(--slate); text-align: center; }
.error { color: var(--fail); font-size: 14px; }

/* Docs (rendered markdown) */
.doc-body { max-width: 820px; }
.doc-body img { max-width: 100%; }
.doc-body pre { line-height: 1.4; }
.doc-nav { position: sticky; top: 76px; font-size: 14px; }
.doc-nav a { display: block; padding: 4px 0; color: var(--slate); }
.mermaid { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 16px; margin: 16px 0; text-align: center; }
.mermaid svg { max-width: 100%; height: auto; }

/* Expandable rows */
details.row { border: 1px solid var(--border); border-radius: 8px; margin: 10px 0; background: var(--panel); }
details.row > summary { padding: 14px 16px; cursor: pointer; list-style: none; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
details.row > summary::-webkit-details-marker { display: none; }
details.row[open] > summary { border-bottom: 1px solid var(--border); }
.row-body { padding: 16px; }
.badge { font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 6px; text-transform: uppercase; letter-spacing: .03em; }
.badge-open { background: color-mix(in srgb, var(--slate) 15%, transparent); color: var(--slate); }
.badge-promoted { background: color-mix(in srgb, var(--prio-c) 18%, transparent); color: var(--prio-c); }
.badge-demoted { background: color-mix(in srgb, var(--prio-b) 18%, transparent); color: var(--prio-b); }
.badge-skipped { background: color-mix(in srgb, var(--prio-a) 15%, transparent); color: var(--prio-a); }

.comment { border-top: 1px solid var(--border); padding: 10px 0; }
.comment .who { font-weight: 600; font-size: 13px; }
.comment .when { color: var(--slate); font-size: 12px; }
.bar-track { background: var(--surface); border-radius: 6px; height: 22px; overflow: hidden; display: flex; border: 1px solid var(--border); }
.bar-seg { height: 100%; }

footer.site-footer {
  border-top: 1px solid var(--border); padding: 24px; text-align: center;
  color: var(--slate); font-size: 13px; background: var(--bg);
}
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 16px 0; }
.spinner { display:inline-block; width:14px; height:14px; border:2px solid var(--border); border-top-color: var(--accent); border-radius:50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.stub-banner { background: color-mix(in srgb, var(--prio-b) 12%, transparent); border: 1px solid var(--prio-b); color: var(--prio-b); padding: 12px 16px; border-radius: 8px; font-weight: 600; font-size: 14px; }