:root {
  --primary-navy: #1a3a5f;
  --primary-navy-hover: #152f4a;
  --bg-gradient-start: #bbdefb;
  --bg-gradient-middle: #ffffff;
  --bg-gradient-end: #e1f5fe;
  --section-bg: #ffffff;
  --section-bg-light: #f8f9fa;
  --text-primary: #212529;
  --text-muted: #6c757d;
  --border-color: #dee2e6;
}

body,
h1, h2, h3, h4, h5, h6,
p, span, div, a, button, input, select, label, li {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

body {
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-middle) 50%, var(--bg-gradient-end) 100%);
  min-height: 100vh;
  color: var(--text-primary);
}

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

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
  background-color: var(--primary-navy-hover);
  border-color: var(--primary-navy-hover);
}

.btn-outline-primary {
  color: var(--primary-navy);
  border-color: var(--primary-navy);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background-color: var(--primary-navy);
  border-color: var(--primary-navy);
  color: white;
}

.btn-outline-primary:active,
.btn-group-toggle .btn-outline-primary:active,
label.btn.btn-outline-primary:active {
  background-color: var(--primary-navy) !important;
  border-color: var(--primary-navy) !important;
  color: white !important;
  box-shadow: 0 0 0 0.2rem rgba(26, 58, 95, 0.25) !important;
}

.btn-outline-primary.active,
.btn-group-toggle .btn-outline-primary.active,
label.btn.btn-outline-primary.active {
  background-color: var(--primary-navy) !important;
  border-color: var(--primary-navy) !important;
  color: white !important;
}

.alert-primary {
  background-color: rgba(26, 58, 95, 0.1);
  border-color: var(--primary-navy);
  color: var(--primary-navy);
}

.fa-info-circle {
  color: var(--primary-navy) !important;
}

/* Subtle logo styling */
header img {
  transition: opacity 0.3s ease;
}

header img:hover {
  opacity: 1 !important;
}

/* FAQ styling */
.faq-item:last-child {
  border-bottom: none !important;
  padding-bottom: 0 !important;
}

.faq-item h6 {
  color: var(--primary-navy);
  font-weight: 600;
}

/* Need More section list styling */
.bg-light ul li {
  line-height: 1.6;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-gradient-start: #1a1a2e;
    --bg-gradient-middle: #16213e;
    --bg-gradient-end: #0f3460;
    --section-bg: #1e293b;
    --section-bg-light: #1e293b;
    --text-primary: #e2e8f0;
    --text-muted: #94a3b8;
    --border-color: #334155;
  }

  .bg-white {
    background-color: var(--section-bg) !important;
  }

  .bg-light {
    background-color: var(--section-bg-light) !important;
  }

  .text-gray-900 {
    color: var(--text-primary) !important;
  }

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

  .border-top {
    border-color: var(--border-color) !important;
  }

  .faq-item {
    border-color: var(--border-color) !important;
  }

  .faq-item h6 {
    color: #93c5fd !important; /* Light blue for better contrast */
  }

  /* Light buttons with dark text in dark mode */
  .btn-primary {
    background-color: #e2e8f0 !important;
    border-color: #e2e8f0 !important;
    color: #1a3a5f !important;
  }

  .btn-primary:hover,
  .btn-primary:focus,
  .btn-primary:active {
    background-color: #cbd5e1 !important;
    border-color: #cbd5e1 !important;
    color: #1a3a5f !important;
  }

  /* Inactive button - dark like section background */
  .btn-outline-primary {
    background-color: var(--section-bg) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
  }

  .btn-outline-primary:hover,
  .btn-outline-primary:focus {
    background-color: #334155 !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
  }

  .btn-outline-primary:active,
  .btn-group-toggle .btn-outline-primary:active,
  label.btn.btn-outline-primary:active {
    background-color: #334155 !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
    box-shadow: 0 0 0 0.2rem rgba(51, 65, 85, 0.25) !important;
  }

  /* Active button - matches submit button style (light with dark text) */
  .btn-outline-primary.active,
  .btn-group-toggle .btn-outline-primary.active,
  label.btn.btn-outline-primary.active {
    background-color: #e2e8f0 !important;
    border-color: #e2e8f0 !important;
    color: #1a3a5f !important;
  }

  /* Invert images in dark mode */
  img {
    filter: invert(1);
  }

  .form-control {
    background-color: var(--section-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
  }

  .form-control:focus {
    background-color: var(--section-bg);
    border-color: var(--primary-navy);
    color: var(--text-primary);
  }

  .form-control::placeholder {
    color: var(--text-muted);
  }

  select.form-control {
    background-color: var(--section-bg);
    color: var(--text-primary);
  }

  .alert {
    background-color: var(--section-bg);
    border-color: var(--border-color);
  }

  .alert-warning {
    background-color: rgba(255, 193, 7, 0.2);
    border-color: #ffc107;
    color: #ffc107;
  }

  .alert-danger {
    background-color: rgba(220, 53, 69, 0.2);
    border-color: #dc3545;
    color: #f8d7da;
  }

  .alert-success {
    background-color: rgba(40, 167, 69, 0.2);
    border-color: #28a745;
    color: #d4edda;
  }

  .alert-info {
    background-color: rgba(23, 162, 184, 0.2);
    border-color: #17a2b8;
    color: #d1ecf1;
  }

  .shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.4) !important;
  }
}

@media (max-width: 768px) {
  header .position-absolute {
    position: relative !important;
    text-align: center;
    margin-bottom: 1rem;
  }
}