body {
    font-family: Arial, sans-serif;
    background: #fff1e6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding-top: 50px;
}

.container {
    width: 90%;
    max-width: 600px;
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

h1 {
    text-align: left;
    color: #333;
    margin-bottom: 30px;
    font-size: 2.5em;
}

.input-section {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

#todoInput {
    flex: 1;
    padding: 15px;
    border: 1px solid #eee;
    border-radius: 8px;
    font-size: 16px;
    background: #f8f9fa;
}

#addTodo {
    padding: 15px;
    background: #4c6ef5;
    color: white;
    border-radius: 8px;
    width: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#addTodo:hover {
    background: #364fc7;
}

.todo-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: #f8f9fa;
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid #eee;
}

.todo-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 15px;
    accent-color: #4c6ef5;
}

.todo-text {
    flex: 1;
    margin: 0 15px;
    font-size: 16px;
    color: #333;
}

.todo-item.completed {
    background: #f8f9fa;
    opacity: 0.7;
}

.todo-item.completed .todo-text {
    text-decoration: line-through;
    color: #666;
}

.stats {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: space-around;
    color: #666;
}

button {
    padding: 10px 20px;
    background: #1a73e8;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

button:hover {
    background: #1557b0;
}

.delete-btn {
    background: #dc3545;
}

.delete-btn:hover {
    background: #c82333;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}