/* Insightora Quick Signal — public static site styles.
   Plain CSS only. No external imports, fonts, or CDNs. */

:root {
  --bg: #0f1115;
  --surface: #ffffff;
  --text: #1c2230;
  --muted: #51607a;
  --border: #d8dee9;
  --accent: #2d4a8a;
  --accent-ink: #ffffff;
  --max: 880px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: #eef1f6;
}

a {
  color: var(--accent);
}

a:focus,
button:focus {
  outline: 3px solid #1b66c9;
  outline-offset: 2px;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header / nav */
.site-header {
  background: var(--bg);
  color: #f5f7fb;
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: #ffffff;
  text-decoration: none;
}

.brand span {
  color: #9fb6e0;
  font-weight: 500;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
}

.site-nav a {
  color: #cdd8ee;
  text-decoration: none;
  font-size: 0.95rem;
}

.site-nav a:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* Main */
main {
  padding: 32px 0 48px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
  margin: 0 auto 24px;
}

h1 {
  font-size: 1.9rem;
  line-height: 1.25;
  margin: 0 0 12px;
}

h2 {
  font-size: 1.3rem;
  margin: 28px 0 10px;
}

h3 {
  font-size: 1.05rem;
  margin: 20px 0 6px;
}

p {
  margin: 0 0 14px;
}

.lead {
  font-size: 1.1rem;
  color: var(--muted);
}

ul {
  margin: 0 0 14px;
  padding-left: 20px;
}

li {
  margin: 4px 0;
}

/* Hero */
.hero {
  background: linear-gradient(180deg, #1a2236 0%, #243156 100%);
  color: #f4f7fc;
  border: none;
}

.hero h1 {
  color: #ffffff;
}

.hero .lead {
  color: #d4ddf0;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.btn {
  display: inline-block;
  padding: 11px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn-primary {
  background: #5b86d8;
  color: #0d1424;
}

.btn-secondary {
  background: transparent;
  color: #f4f7fc;
  border-color: #6f86b8;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0 18px;
  font-size: 0.97rem;
}

th,
td {
  border: 1px solid var(--border);
  padding: 9px 12px;
  text-align: left;
}

th {
  background: #f2f5fb;
}

td.num,
th.num {
  text-align: right;
}

/* Definition-style rows */
.muted {
  color: var(--muted);
}

/* Footer */
.site-footer {
  background: var(--bg);
  color: #aebbd4;
  padding: 28px 0;
  font-size: 0.9rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
}

.site-footer a {
  color: #cdd8ee;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
}

@media (max-width: 600px) {
  .card {
    padding: 20px;
  }
  h1 {
    font-size: 1.55rem;
  }
}