* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana,
    sans-serif;
}

body {
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: #f4f4f4;
}

.container {
  width: 100%;
  max-width: 400px;
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.container h1 {
  margin-bottom: 20px;
  color: #333;
}

.form-group {
  margin-bottom: 15px;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-size: 14px;
  color: #555;
}

.form-group input {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 14px;
}

.form-group input:focus {
  border-color: #007bff;
  outline: none;
}

.button {
  width: 100%;
  padding: 10px;
  background: #007bff;
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 16px;
  cursor: pointer;
}

.button:hover {
  background: #0056b3;
}

.toggle-link {
  display: block;
  margin-top: 15px;
  font-size: 14px;
  color: #007bff;
  cursor: pointer;
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.9);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.loading-overlay.active {
  display: flex;
}

.loader {
  width: 50px;
  height: 50px;
  border: 5px solid #f3f3f3;
  border-top: 5px solid #3498db;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.header {
  background-color: #ffffff;
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header h1 {
  color: #333;
  margin-bottom: 5px;
}

.logout-button {
  padding: 10px 20px;
  background-color: #ff4444;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.logout-button:hover {
  background-color: #ff0000;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(
    auto-fit,
    minmax(250px, 1fr)
  );
  gap: 20px;
  margin-bottom: 20px;
}

.stat-card {
  background: #ffffff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s;
}

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

.stat-icon {
  font-size: 24px;
  margin-bottom: 10px;
}

.stat-card h3 {
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.stat-card .value {
  font-size: 1.8rem;
  font-weight: bold;
  color: #333;
}

.progress-section {
  background: #ffffff;
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-section h2 {
  margin-bottom: 15px;
  color: #333;
}

.progress-bar {
  width: 100%;
  height: 20px;
  background: #e0e0e0;
  border-radius: 10px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(
    90deg,
    #4caf50,
    #45a049
  );
  transition: width 0.3s ease;
  width: 0%;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(
    auto-fit,
    minmax(300px, 1fr)
  );
  gap: 20px;
}

.tasks-section,
.events-section {
  background: #ffffff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.tasks-section h2,
.events-section h2 {
  margin-bottom: 15px;
  color: #333;
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.task-item {
  display: flex;
  align-items: center;
  padding: 10px;
  background: #f8f9fa;
  border-radius: 5px;
}

.task-item input[type="checkbox"] {
  margin-right: 10px;
  cursor: pointer;
}

.task-item label {
  cursor: pointer;
}

.events-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.event-item {
  padding: 15px;
  background: #f8f9fa;
  border-radius: 5px;
}

.event-item h3 {
  color: #333;
  margin-bottom: 5px;
}

.event-item .date {
  color: #666;
  font-size: 0.9rem;
}

.error-toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #ff4444;
  color: white;
  padding: 15px 20px;
  border-radius: 5px;
  display: none;
  align-items: center;
  gap: 10px;
  z-index: 1000;
  animation: slideIn 0.3s ease;
}

.error-toast.active {
  display: flex;
}

.close-toast {
  background: none;
  border: none;
  color: white;
  font-size: 20px;
  cursor: pointer;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }

  .header-content {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
}