:root {
  --dark-green: #124e2c;
  --light-green: #29b973;
  --blue: #15689e;
  --white: #ffffff;
  --grey: #d2d0d2;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f8f9fa;
}

.navbar {
  background-color: var(--blue) !important;
}

.navbar-brand {
  color: var(--white) !important;
  font-weight: bold;
  font-size: 1.5rem;
}

.navbar-nav .nav-link {
  color: var(--white) !important;
}

.btn-primary {
  background-color: var(--dark-green);
  border-color: var(--dark-green);
}

.btn-primary:hover {
  background-color: #0f4024;
  border-color: #0f4024;
}

.btn-success {
  background-color: var(--light-green);
  border-color: var(--light-green);
}

.btn-success:hover {
  background-color: #24a564;
  border-color: #24a564;
}

.text-primary {
  color: var(--blue) !important;
}

.card {
  border: 1px solid var(--grey);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  margin-bottom: 1.5rem;
}

.card-header {
  background-color: var(--dark-green);
  color: var(--white);
  font-weight: bold;
}

.hero-section {
  background: linear-gradient(135deg, var(--blue) 0%, var(--dark-green) 100%);
  color: var(--white);
  padding: 4rem 0;
  text-align: center;
}

.hero-section h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.badge-pending {
  background-color: #ffc107;
  color: #000;
}

.badge-approved {
  background-color: var(--light-green);
}

.badge-expired {
  background-color: #dc3545;
}

.badge-rejected {
  background-color: #6c757d;
}

.stats-card {
  background: linear-gradient(135deg, var(--light-green) 0%, var(--dark-green) 100%);
  color: var(--white);
  padding: 1.5rem;
  border-radius: 0.5rem;
  margin-bottom: 1.5rem;
}

.stats-card h3 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.stats-card p {
  margin: 0;
  font-size: 1.1rem;
}

.group-card {
  transition: transform 0.2s;
}

.group-card:hover {
  transform: translateY(-5px);
}

.table th {
  background-color: var(--dark-green);
  color: var(--white);
}

footer {
  background-color: var(--dark-green);
  color: var(--white);
  padding: 2rem 0;
  margin-top: 4rem;
}