:root {
  --ea-green: #2f6f4e;
  --ea-green-dark: #234f39;
  --ea-gold: #c9a227;
  --ea-sand: #f6f4ee;
  --ea-ink: #1f2a24;
}

body {
  color: var(--ea-ink);
  background-color: #ffffff;
}

/* Navigation */
.navbar-brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.navbar-dark {
  background-color: var(--ea-green-dark);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--ea-green) 0%, var(--ea-green-dark) 100%);
  color: #ffffff;
  padding: 5rem 0 4rem;
}

.hero .lead {
  max-width: 48rem;
  opacity: 0.95;
}

/* Section headings */
.section-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ea-gold);
}

/* Concept cards */
.concept-card {
  border: 1px solid #e6e3da;
  border-radius: 0.75rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  height: 100%;
}

.concept-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 0.75rem 1.5rem rgba(35, 79, 57, 0.12);
}

.concept-card .card-title {
  color: var(--ea-green-dark);
  font-weight: 700;
}

.btn-ea {
  background-color: var(--ea-green);
  border-color: var(--ea-green);
  color: #ffffff;
}

.btn-ea:hover {
  background-color: var(--ea-green-dark);
  border-color: var(--ea-green-dark);
  color: #ffffff;
}

/* Detail pages */
.detail-header {
  background-color: var(--ea-sand);
  padding: 3rem 0 2.5rem;
  border-bottom: 1px solid #e6e3da;
}

.detail-body {
  padding: 3rem 0 4rem;
}

.detail-body h2 {
  color: var(--ea-green-dark);
  margin-top: 2rem;
  font-size: 1.35rem;
}

.detail-body .meta-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ea-gold);
}

footer {
  background-color: var(--ea-green-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 2rem 0;
  margin-top: 3rem;
}

footer a {
  color: #ffffff;
}