/* Alethia Intelligence — Corporate Styling */
:root {
  --color-bg: #0a0e17;
  --color-surface: #111827;
  --color-border: #1f2937;
  --color-text: #e5e7eb;
  --color-text-muted: #9ca3af;
  --color-accent: #06b6d4;
  --color-accent-hover: #22d3ee;
  --max-width: 720px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); text-decoration: underline; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Site header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 2rem;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.header-inner .logo {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-accent);
}

.header-inner nav {
  display: flex;
  gap: 1.5rem;
  font-size: 0.875rem;
}

/* Landing page hero */
.hero {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 2rem;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.hero .tagline {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  max-width: 480px;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.nav-links a {
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.875rem;
  transition: border-color 0.2s, color 0.2s;
}

.nav-links a:hover {
  border-color: var(--color-accent);
  text-decoration: none;
}

/* Features section */
.features {
  padding: 3rem 1.5rem;
}

.features h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--color-accent);
}

.features > p {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 600px) {
  .feature-grid { grid-template-columns: 1fr; }
}

.feature {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.25rem;
}

.feature h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.feature p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* CTA section */
.cta {
  text-align: center;
  padding: 3rem 1.5rem;
}

.cta h2 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.cta p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.cta-button {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 600;
  border-radius: 6px;
  transition: background 0.2s;
}

.cta-button:hover {
  background: var(--color-accent-hover);
  text-decoration: none;
  color: var(--color-bg);
}

/* Legal pages */
.legal { padding: 3rem 0 4rem; }
.legal h1 { font-size: 1.75rem; margin-bottom: 0.25rem; }
.legal .effective-date { color: var(--color-text-muted); font-size: 0.875rem; margin-bottom: 2rem; }
.legal h2 { font-size: 1.125rem; margin: 2rem 0 0.5rem; color: var(--color-accent); }
.legal p, .legal li { color: var(--color-text-muted); margin-bottom: 0.75rem; }
.legal ul { padding-left: 1.5rem; }
.legal li { list-style: disc; }

.back-link { display: inline-block; margin-bottom: 1.5rem; font-size: 0.875rem; }

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  border-top: 1px solid var(--color-border);
  margin-top: 3rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
  font-size: 0.8125rem;
}