/* Base styles */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  color: #333;
  background-color: #f5f7fa;
  margin: 0;
  padding: 0;
}

/* Login form styles */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: #f5f7fa;
}

.login-form {
  width: 100%;
  max-width: 400px;
  padding: 2rem;
  background-color: white;
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #444;
}

.form-control {
  display: block;
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  color: #495057;
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid #ced4da;
  border-radius: 0.25rem;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
  border-color: #2da44e;
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(45, 164, 78, 0.25);
}

/* Button styles */
.btn {
  display: inline-block;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: 0.25rem;
  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  cursor: pointer;
}

.btn-primary {
  color: #fff;
  background-color: #2da44e;
  border-color: #2da44e;
}

.btn-primary:hover {
  background-color: #26863f;
  border-color: #26863f;
}

.btn-block {
  display: block;
  width: 100%;
}

/* Navbar styles */
.navbar {
  background-color: #24292e;
  color: white;
  padding: 1rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.navbar-brand {
  font-size: 1.25rem;
  font-weight: bold;
  color: white;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin-left: 1.5rem;
}

.nav-link {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: white;
}

/* Alert styles */
.alert {
  padding: 0.75rem 1.25rem;
  margin-bottom: 1rem;
  border: 1px solid transparent;
  border-radius: 0.25rem;
}

.alert-danger {
  color: #721c24;
  background-color: #f8d7da;
  border-color: #f5c6cb;
}

/* Utility classes */
.text-center {
  text-align: center;
}

.mb-4 {
  margin-bottom: 1rem;
}

/* Animation for loading */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.4s ease-out forwards;
}

/* Activity level colors */
.activity-low {
  background-color: #ebedf0;
}

.activity-medium {
  background-color: #9be9a8;
}

.activity-high {
  background-color: #40c463;
}

.activity-very-high {
  background-color: #2da44e;
}