body {
    font-family: Arial, sans-serif;
    margin: 20px;
    padding: 0;
    background-color: #f4f4f4;
}

.container {
    max-width: 600px;
    margin: auto;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

button {
    display: block;
    width: 100%;
    margin: 10px 0;
    padding: 10px;
    background: #007bff;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
    background: #0056b3;
}

.task {
    display: flex;
    gap: 10px;
    margin: 5px 0;
}

.task input {
    flex: 1;
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

#week-grid {
    display: flex;
    gap: 5px;
    margin: 10px 0;
}

.day {
    flex: 1;
    text-align: center;
    padding: 10px;
    background-color: #ddd;
    cursor: pointer;
}

.day.active {
    background-color: #007bff;
    color: white;
}

#time-grid {
    display: grid;
    grid-template-columns: repeat(24, 1fr);
    gap: 2px;
    margin: 10px 0;
}

#time-grid div {
    width: 25px;
    height: 25px;
    border: 1px solid #aaa;
    text-align: center;
    cursor: pointer;
    background-color: white;
}

#time-grid div.selected {
    background-color: #007bff;
    color: white;
}

.schedule-item {
    padding: 10px;
    border: 1px solid #ccc;
    margin: 5px 0;
    cursor: pointer;
}

.schedule-item:hover {
    background-color: #e0e0e0;
}