* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background: #f5f5f5;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 20px;
}

.container {
    max-width: 500px;
    width: 100%;
    background: white;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

h1 {
    font-size: 24px;
    margin-bottom: 20px;
    text-align: center;
}

.input-group {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

#itemInput {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
}

#addBtn {
    background: #007aff;
    color: white;
    border: none;
    border-radius: 8px;
    width: 48px;
    font-size: 24px;
    cursor: pointer;
    transition: background 0.2s;
}

#addBtn:hover {
    background: #0056b3;
}

#groceryList {
    list-style: none;
}

#groceryList li {
    display: flex;
    align-items: center;
    padding: 12px;
    border-bottom: 1px solid #e0e0e0;
    gap: 12px;
}

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

.grocery-checkbox {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.grocery-text {
    flex: 1;
    font-size: 16px;
}

.grocery-text.checked {
    text-decoration: line-through;
    color: #888;
}

.delete-btn {
    background: #ff3b30;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 6px 10px;
    cursor: pointer;
    font-size: 14px;
}