/* Guardian Core — aligned to logo palette */
:root {
  --bg-primary: #0F1418;          /* Carbon Black */
  --bg-secondary: #1B2228;        /* Charcoal */
  --text-primary: #E6EEF2;        /* Off-White */
  --text-secondary: #9FB3C1;      /* Muted Steel */
  --brand-primary: #3FA9D5;       /* Guardian Blue */
  --brand-accent: #7FD3F4;        /* Ice Blue */
  --border-subtle: rgba(255, 255, 255, 0.08);
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  color: var(--text-secondary);
  background: var(--bg-primary);
}

/* Hero */
.hero {
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 4rem 1.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
}

.hero h1 {
  font-size: 3rem;
  letter-spacing: 0.5px;
  color: var(--text-primary);
}

.tagline {
  font-size: 1.3rem;
  margin-top: 0.5rem;
  color: var(--text-secondary);
  opacity: 0.95;
}

.subtitle {
  max-width: 700px;
  margin: 1.5rem auto 2rem;
  font-size: 1.1rem;
  color: var(--text-secondary);
  opacity: 0.95;
}

/* Primary nav */
.nav {
  margin: 1rem auto 1.5rem;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.nav a {
  color: var(--brand-primary);
  text-decoration: none;
  font-weight: 600;
}

.nav a:hover {
  color: var(--brand-accent);
  text-decoration: underline;
}

/* CTA */
.cta {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--brand-primary);
  color: var(--bg-primary);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.10);
  transition: transform 120ms ease, background 120ms ease, color 120ms ease;
}

.cta:hover {
  background: var(--brand-accent);
  color: var(--bg-primary);
  transform: translateY(-1px);
}

/* Layout */
main {
  max-width: 900px;
  margin: 3rem auto;
  padding: 0 1.5rem;
}

main section {
  margin-bottom: 3rem;
  padding: 1.25rem 1.25rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
}

/* Typography */
h2 {
  font-size: 1.6rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

p {
  margin-bottom: 1rem;
}

/* Lists */
ul {
  list-style: disc;
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.5rem;
}

/* Ordered lists */
ol {
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
  padding-left: 1.25rem;
}

/* Links (global) */
a {
  color: var(--brand-primary);
}

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

/* Contact link */
.contact a {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--brand-primary);
  text-decoration: none;
}

.contact a:hover {
  color: var(--brand-accent);
  text-decoration: underline;
}

/* Notes */
.note {
  margin-top: 0.75rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  opacity: 0.9;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--bg-secondary);
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-subtle);
}

footer a {
  color: var(--brand-primary);
  text-decoration: none;
  font-weight: 700;
}

footer a:hover {
  color: var(--brand-accent);
  text-decoration: underline;
}