:root { 
  --brand: #0f5132; /* deep green */ 
}

.bg-brand { 
  background: var(--brand); 
}

.text-brand { 
  color: var(--brand); 
}

/* Black background with white text */
body {
  background-color: #000000;
  color: #ffffff;
}

/* Full-screen hero banner */
.hero {
  position: relative;
  height: 100vh;
  background: url('img/banner.png') center center / cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
  text-align: center;
}

.hero h1, .hero p, .hero .badge {
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.card-hover { 
  transition: transform .15s ease, box-shadow .15s ease;
  background-color: #1a1a1a;
  border-color: #333;
}

.card-hover:hover { 
  transform: translateY(-2px); 
  box-shadow: 0 .5rem 1.25rem rgba(255,255,255,.1);
}

.badge-soft {
  background: rgba(255,255,255,.1);
  color: #ffffff;
  border: 1px solid rgba(255,255,255,.15);
}

.section-pad { 
  padding: 4rem 0; 
}

.anchor-offset { 
  scroll-margin-top: 90px; /* for fixed navbar */ 
}

.small-muted { 
  font-size: .95rem; 
  color: #aaa; 
}

/* Dark theme card styles */
.card {
  background-color: #1a1a1a;
  border-color: #333;
  color: #ffffff;
}

.card-body, .card-footer {
  background-color: #1a1a1a;
  border-color: #333;
}

.bg-white {
  background-color: #1a1a1a !important;
}

.bg-light {
  background-color: #0a0a0a !important;
}

.text-secondary {
  color: #aaa !important;
}

.border {
  border-color: #333 !important;
}

/* Navbar dark theme */
.navbar {
  background-color: #000000 !important;
  border-bottom-color: #333 !important;
}

.navbar-brand img {
  filter: brightness(0) invert(1);
}

.nav-link {
  color: #ffffff !important;
}

.nav-link:hover {
  color: #28a745 !important;
}

/* Accordion dark theme */
.accordion-item {
  background-color: #1a1a1a;
  border-color: #333;
}

.accordion-button {
  background-color: #1a1a1a;
  color: #ffffff;
}

.accordion-button:not(.collapsed) {
  background-color: #0a0a0a;
  color: #ffffff;
}

.accordion-body {
  background-color: #1a1a1a;
  color: #ffffff;
}