:root {
  --bg: #0f172a;
  --bg-soft: #111c33;
  --card: rgba(255, 255, 255, 0.92);
  --text: #142033;
  --muted: #5b677a;
  --accent: #1f8f5f;
  --accent-dark: #166947;
  --border: rgba(15, 23, 42, 0.08);
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.18);
  --radius: 18px;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
  color: var(--text);
}

body {
  min-height: 100vh;
}

.page-shell {
  min-height: 100vh;
}

.container {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
}

.site-header {
  padding: 4.5rem 0 2rem;
  color: white;
}

.compact-header {
  padding-bottom: 1.5rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.75);
}

h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.02;
}

.lead {
  max-width: 760px;
  margin: 1rem 0 0;
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.88);
}

.top-nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.75rem;
}

.top-nav a,
.site-footer a {
  color: white;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, opacity 0.2s ease;
}

.top-nav a:hover,
.site-footer a:hover {
  border-color: rgba(255, 255, 255, 0.55);
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  padding: 1rem 0 3rem;
}

.single-column {
  display: grid;
  gap: 1.25rem;
  padding: 1rem 0 3rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.wide-card {
  grid-column: 1 / -1;
}

.card h2 {
  margin-top: 0;
  margin-bottom: 0.85rem;
  font-size: 1.25rem;
}

.card p,
.card li {
  color: var(--muted);
  line-height: 1.7;
}

.feature-list {
  margin: 0.75rem 0 0;
  padding-left: 1.2rem;
}

.callout {
  margin-top: 1rem;
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--accent);
  background: rgba(31, 143, 95, 0.08);
  border-radius: 10px;
  color: var(--text);
}

.callout span {
  display: block;
  margin-top: 0.35rem;
  color: var(--muted);
}

.button-link {
  display: inline-block;
  margin-top: 0.25rem;
  padding: 0.8rem 1rem;
  border-radius: 12px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s ease, transform 0.2s ease;
}

.button-link:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.site-footer {
  padding: 1.25rem 0 2rem;
  color: rgba(255, 255, 255, 0.72);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.95rem;
}

@media (max-width: 760px) {
  .content-grid {
    grid-template-columns: 1fr;
  }

  .wide-card {
    grid-column: auto;
  }

  .site-header {
    padding-top: 3rem;
  }
}