/* Variables */
:root {
  --primary-color: #3B82F6;
  --primary-hover: #2563eb;
  --secondary-color: #64748b;
  --success-color: #22c55e;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;
  --light-bg: #f8fafc;
  --border-color: #e2e8f0;
  --text-color: #1e293b;
  --text-muted: #64748b;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
}

/* Base styles */
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-color);
  background-color: var(--light-bg);
}

/* Body container */
.body-container {
  margin-top: 2rem;
  padding-bottom: 3rem;
  min-height: calc(100vh - 56px - 5rem);
}

/* Navigation improvements */
.navbar {
  box-shadow: var(--shadow-sm);
}

.navbar.navbar-dark {
  background-color: #0F172A !important;
}

.navbar-brand {
  font-weight: 600;
  letter-spacing: -0.025em;
}

.navbar-dark .navbar-brand,
.navbar-dark .nav-link,
.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
}

.navbar-dark .navbar-brand:hover,
.navbar-dark .nav-link:hover {
  color: #fff !important;
  text-decoration: none;
}

/* Card improvements */
.card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  background-color: white;
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 1.5rem;
}

.card-header h2,
.card-header h4 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
}

.card-body {
  padding: 1.5rem;
}

/* Form improvements */
.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.form-control {
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

/* Button improvements */
.btn {
  border-radius: var(--radius);
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  transition: all 0.15s ease-in-out;
}

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

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

.btn-secondary {
  background-color: white;
  border-color: var(--border-color);
  color: var(--text-color);
}

.btn-secondary:hover {
  background-color: var(--light-bg);
  border-color: var(--border-color);
  color: var(--text-color);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* Alert improvements */
.alert {
  border-radius: var(--radius);
  border: none;
  padding: 1rem 1.25rem;
}

.alert-info {
  background-color: #eff6ff;
  color: #1e40af;
}

.alert-danger {
  background-color: #fef2f2;
  color: #991b1b;
}

.alert-warning {
  background-color: #fffbeb;
  color: #92400e;
}

.alert-success {
  background-color: #f0fdf4;
  color: #166534;
}

.alert-secondary {
  background-color: var(--light-bg);
  color: var(--text-color);
}

/* Login page specific */
.login-page .lead {
  text-align: center;
  margin-bottom: 2rem;
}

.login-page .lead h1 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.login-page .lead p {
  color: var(--text-muted);
  margin-bottom: 0;
}

/* Welcome page */
.welcome-page .logo {
  width: 64px;
}

.welcome-page li {
  list-style: none;
  padding: 4px;
}

/* Icon banner */
.icon-banner {
  width: 32px;
}

/* Logged out page */
.logged-out-page iframe {
  display: none;
  width: 0;
  height: 0;
}

/* Grants page */
.grants-page .card {
  margin-top: 20px;
  border-bottom: 1px solid lightgray;
}

.grants-page .card .card-title {
  font-size: 120%;
  font-weight: bold;
}

.grants-page .card .card-title img {
  width: 100px;
  height: 100px;
}

.grants-page .card label {
  font-weight: bold;
}

/* Shadow utilities */
.shadow-sm {
  box-shadow: var(--shadow-sm) !important;
}

.shadow {
  box-shadow: var(--shadow) !important;
}

/* Badge improvements */
.badge {
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius);
}

/* Link improvements */
a {
  color: var(--primary-color);
  text-decoration: none;
}

a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

/* Form check improvements */
.form-check-input:checked {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

/* Text utilities */
.text-muted {
  color: var(--text-muted) !important;
}

/* Centered auth pages */
.auth-centered {
  min-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Validation improvements */
.text-danger {
  color: var(--danger-color) !important;
  font-size: 0.875rem;
}

.validation-summary-errors {
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

.validation-summary-errors ul {
  margin-bottom: 0;
  padding-left: 1.25rem;
}

/* Divider */
hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 1.5rem 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .body-container {
    margin-top: 1rem;
    padding: 0 1rem 2rem;
  }

  .card-body {
    padding: 1.25rem;
  }

  .btn {
    width: 100%;
    margin-bottom: 0.5rem;
  }
}