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

body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.app-container {
  width: 100%;
  max-width: 500px;
  padding: 20px;
}

h2 {
  text-align: center;
  margin-bottom: 20px;
  color: #2c3e50;
  font-size: 2rem;
  animation: fadeIn 1s forwards ease;
}

.container {
  background-color: white;
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  animation: fadeIn 1s forwards ease;
}

.input-container {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

input {
  flex: 1;
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-size: 16px;
  transition: border 0.3s;
}

input:focus {
  outline: none;
  border-color: #3498db;
}

button {
  padding: 12px 20px;
  background-color: #3498db;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #2980b9;
}

#tasksContainer {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.task-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 15px;
  background-color: #f8f9fa;
  border-radius: 5px;
  animation: fadeIn 0.5s forwards ease;
}

.task-text {
  flex: 1;
  word-break: break-word;
  padding-right: 10px;
}

.task-actions {
  display: flex;
  gap: 8px;
}

.task-actions button {
  padding: 5px 10px;
  font-size: 12px;
}

.edit-btn {
  background-color: #f39c12;
}

.edit-btn:hover {
  background-color: #e67e22;
}

.delete-btn {
  background-color: #e74c3c;
}

.delete-btn:hover {
  background-color: #c0392b;
}

.completed {
  text-decoration: line-through;
  color: #95a5a6;
  opacity: 0.7;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 500px) {
  .app-container {
    padding: 15px;
  }

  .container {
    padding: 15px;
  }

  .input-container {
    flex-direction: column;
  }

  button {
    width: 100%;
  }
}