/* RiskBird — marketing + docs site
   World: preflight checklists, risk matrices, the panel before dawn.
   Palette: slate night #131A21 / panel #1B242E / ink #E8EDF2
   Signature: the FRAT risk gradient, green → amber → red.
   Type: IBM Plex Sans + IBM Plex Mono (checklist voice). */

:root {
  --night: #131A21;
  --panel: #1B242E;
  --panel-edge: #2A3642;
  --ink: #E8EDF2;
  --muted: #8A96A3;
  --green: #3FB768;
  --amber: #E9A13B;
  --red: #D64545;
  --steel: #6FA8CE;
  --font-sans: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; }

body {
  background: var(--night);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.6;
  font-size: 17px;
}

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 24px; }

/* header */
header.site {
  border-bottom: 1px solid var(--panel-edge);
  padding: 18px 0;
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 1.25rem; letter-spacing: 0.02em;
  color: var(--ink); text-decoration: none;
}
.brand svg { flex: none; }
nav.site a {
  color: var(--muted); text-decoration: none; margin-left: 22px;
  font-size: 0.95rem;
}
nav.site a:hover { color: var(--ink); }

/* hero */
.hero { padding: 72px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.kicker {
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--steel); margin-bottom: 14px;
}
h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.08; font-weight: 700; letter-spacing: -0.02em;
}
.hero p.lead { color: var(--muted); font-size: 1.15rem; margin: 20px 0 28px; max-width: 34rem; }
.cta-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.badge-soon {
  font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.12em;
  color: var(--night); background: var(--green);
  padding: 12px 22px; border-radius: 8px; font-weight: 600;
  text-decoration: none;
}
.cta-note { color: var(--muted); font-size: 0.9rem; }

/* the gauge — signature element */
.gauge-card {
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: 14px; padding: 28px;
  box-shadow: 0 24px 48px -24px rgba(0,0,0,0.6);
}
.gauge-card .g-label {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.2em;
  color: var(--muted); text-transform: uppercase;
}
.gauge-card .g-score {
  font-family: var(--font-mono); font-size: 3.2rem; font-weight: 600;
  line-height: 1.1; margin: 6px 0 2px;
}
.gauge-card .g-verdict { color: var(--green); font-family: var(--font-mono); letter-spacing: 0.14em; font-size: 0.85rem; }
.gauge-card svg { width: 100%; height: auto; margin-top: 18px; }
.gauge-rows { margin-top: 20px; border-top: 1px solid var(--panel-edge); padding-top: 14px; }
.gauge-rows .row {
  display: flex; justify-content: space-between; gap: 10px;
  font-family: var(--font-mono); font-size: 0.82rem; padding: 5px 0;
  color: var(--muted);
}
.gauge-rows .row b { color: var(--ink); font-weight: 500; }

/* checklist features */
section.features { padding: 46px 0 22px; }
h2 { font-size: 1.7rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 8px; }
.section-sub { color: var(--muted); max-width: 40rem; margin-bottom: 30px; }
.checklist { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 40px; }
.check-item {
  display: flex; gap: 14px; padding: 16px;
  background: var(--panel); border: 1px solid var(--panel-edge); border-radius: 10px;
}
.check-item .box {
  font-family: var(--font-mono); color: var(--green); font-size: 1.05rem;
  flex: none; padding-top: 1px;
}
.check-item h3 { font-size: 1.02rem; font-weight: 600; margin-bottom: 3px; }
.check-item p { color: var(--muted); font-size: 0.92rem; margin: 0; }

/* CFI band */
.cfi-band {
  margin: 56px 0;
  background: linear-gradient(135deg, var(--panel), #202e3a);
  border: 1px solid var(--panel-edge); border-radius: 14px;
  padding: 40px; display: grid; grid-template-columns: 1fr; gap: 8px;
}
.cfi-band .kicker { color: var(--amber); }
.cfi-band p { color: var(--muted); max-width: 44rem; }

/* disclaimer + footer */
.disclaimer {
  border-top: 1px solid var(--panel-edge);
  padding: 26px 0; color: var(--muted); font-size: 0.85rem;
}
.disclaimer strong { color: var(--ink); font-weight: 600; }
footer.site {
  border-top: 1px solid var(--panel-edge);
  padding: 26px 0 40px; color: var(--muted); font-size: 0.85rem;
}
footer.site .wrap { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
footer.site a { color: var(--steel); text-decoration: none; }
footer.site a:hover { text-decoration: underline; }

/* doc pages (privacy, terms, support) */
main.doc { padding: 52px 0 72px; max-width: 760px; margin: 0 auto; }
main.doc { padding-left: 24px; padding-right: 24px; }
main.doc h1 { font-size: 2.1rem; margin-bottom: 6px; }
main.doc .updated { font-family: var(--font-mono); color: var(--muted); font-size: 0.8rem; margin-bottom: 34px; }
main.doc h2 { font-size: 1.25rem; margin: 34px 0 10px; }
main.doc p, main.doc li { color: #C4CDD6; }
main.doc ul { padding-left: 22px; }
main.doc a { color: var(--steel); }
details {
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: 10px; padding: 16px 20px; margin-bottom: 12px;
}
details summary {
  cursor: pointer; font-weight: 600; color: var(--ink);
  font-size: 1.02rem;
}
details[open] summary { margin-bottom: 10px; }
details p { font-size: 0.95rem; }

@media (max-width: 800px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .checklist { grid-template-columns: 1fr; }
  .cfi-band { padding: 28px; }
}