/* body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    padding: 20px;
} */
/* .container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}
.card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    max-width: 300px;
    width: 100%;
} */
table {
    border-collapse: collapse;
    width: 100%;
}
th, td {
    border: 1px solid #ddd;
    padding: 5px;
    text-align: center;
}
th {
    background-color: #f2f2f2;
}
table.excel-like input {
    border: none;
    width: 100%;
    height: 100%;
    text-align: center;
    outline: none;
}
input:focus {
    background-color: #e0f7fa;
}
h3 {
    margin: 0 0 10px;
    font-size: 1.2em;
}
.table-btn-container {
    margin: 10px 0;
    display: flex;
    gap: 8px;
}
.save-table-btn {
    display: none;
    padding: 8px 16px;
    background-color: #28a745;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-family: Arial, sans-serif;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s;
}
.save-table-btn:hover {
    background-color: #218838;
}
.save-table-btn:focus {
    outline: none;
    box-shadow: 0 0 0 2px #e0f7fa;
}
.cancel-table-btn {
    display: none;
    padding: 8px 16px;
    background-color: #6c757d;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-family: Arial, sans-serif;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s;
}
.cancel-table-btn:hover {
    background-color: #5a6268;
}
.cancel-table-btn:focus {
    outline: none;
    box-shadow: 0 0 0 2px #e0f7fa;
}
input.error {
    color: red;
    border: 1px solid red;
}