body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 10px;
    background-color: #f5f5f5;
    color: #333;
}

#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #ddd;
    padding-bottom: 10px;
    margin-bottom: 10px;
}

h1 {
    font-size: 1.2rem;
    margin: 0;
}

button {
    padding: 5px 10px;
    cursor: pointer;
    background-color: #5b5fc7;
    color: white;
    border: none;
    border-radius: 4px;
}

button:hover {
    background-color: #4e52a5;
}

#status {
    font-size: 0.8rem;
    color: #666;
    margin-bottom: 10px;
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
    overflow-y: auto;
}

li {
    display: flex;
    align-items: center;
    padding: 8px;
    background: white;
    border-radius: 4px;
    margin-bottom: 5px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

li.checked {
    background-color: #e8f5e9;
    text-decoration: line-through;
    color: #888;
}

input[type="checkbox"] {
    margin-right: 12px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.name {
    flex-grow: 1;
    font-size: 0.95rem;
}