body {
    background: #f4f6fb;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 400px;
    margin: 60px auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    padding: 32px 24px 24px 24px;
}

h1 {
    text-align: center;
    color: #2d3a4b;
    margin-bottom: 24px;
}

#todo-form {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

#todo-input {
    flex: 1;
    padding: 10px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 16px;
}

#todo-form button {
    padding: 10px 18px;
    background: #4f8cff;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.2s;
}

#todo-form button:hover {
    background: #2563eb;
}

#todo-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

#todo-list li {
    padding: 12px 10px;
    border-bottom: 1px solid #f0f0f0;
    font-size: 17px;
    color: #2d3a4b;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

#todo-list li:last-child {
    border-bottom: none;
}

#todo-list li.completed {
    text-decoration: line-through;
    color: #b0b0b0;
    background: #f3f3f3;
}
.pie {position: relative;
    width: 100%;
    background: rgb(67, 58, 235);
    min-height: 100px;
    padding: 20px 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
   
}