/* =========================
   RESET & BASE
========================= */

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont,
               "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  color: #1f2a28;
  background-color: #ffffff;
}

img {
  max-width: 100%;
  display: block;
}

/* =========================
   LAYOUT
========================= */

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

section {
  padding: 4rem 0;
}

@media (max-width: 768px) {
  section {
    padding: 3rem 0;
  }
}

/* =========================
   HEADER / NAV
========================= */

.site-header {
  position: sticky;
  top: 0;
  background: #ffffff;
  border-bottom: 1px solid #e5ecea;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 64px;
}

.logo {
  font-weight: 600;
  letter-spacing: 0.02em;
}

nav a {
  margin-left: 1.25rem;
  text-decoration: none;
  color: #1f2a28;
  font-size: 0.95rem;
}

nav a:hover {
  text-decoration: underline;
}

nav a.cta {
  font-weight: 500;
}

/* =========================
   HERO
========================= */

#hero {
  background: #f5f9f8;
  text-align: left;
}

#hero h1 {
  font-size: 2.5rem;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero-subhead {
  font-size: 1.1rem;
  max-width: 640px;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* =========================
   TYPOGRAPHY
========================= */

h1, h2, h3 {
  font-weight: 600;
  line-height: 1.3;
  margin-top: 0;
}

h2 {
  font-size: 1.75rem;
  margin-bottom: 1.25rem;
}

p {
  margin-bottom: 1.25rem;
}

.callout {
  font-style: italic;
  color: #4a5f5b;
}

/* =========================
   LISTS
========================= */

ul {
  padding-left: 1.25rem;
  margin-bottom: 1.5rem;
}

ul li {
  margin-bottom: 0.5rem;
}

/* =========================
   BUTTONS
========================= */

.button {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  border-radius: 6px;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
}

.button.primary {
  background-color: #3f6f62; /* brand green */
  color: #ffffff;
}

.button.primary:hover {
  background-color: #355e53;
}

.button.secondary {
  background-color: transparent;
  color: #3f6f62;
  border: 1px solid #3f6f62;
}

.button.secondary:hover {
  background-color: #edf4f2;
}

/* =========================
   CORE AREAS GRID
========================= */

#core-areas .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.75rem 1.5rem;
  list-style: none;
  padding-left: 0;
}

/* =========================
   NEWSLETTER
========================= */

#newsletter {
  background: #f5f9f8;
}

.newsletter-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  max-width: 480px;
}

.newsletter-form input[type="email"] {
  flex: 1;
  padding: 0.65rem 0.75rem;
  font-size: 0.95rem;
  border-radius: 4px;
  border: 1px solid #cfd9d6;
}

.newsletter-form button {
  white-space: nowrap;
}

/* =========================
   FOOTER
========================= */

footer {
  border-top: 1px solid #e5ecea;
  padding: 2rem 0;
  font-size: 0.85rem;
  color: #4a5f5b;
}

.footer-small {
  font-size: 0.75rem;
  margin-top: 0.5rem;
}

/* =========================
   UTILITIES
========================= */

.disclaimer {
  font-size: 0.9rem;
  color: #4a5f5b;
}