body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

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

.container {
    display: flex;
    flex: 1;
    gap: 20px;
}

.spreadsheet-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    border: 1px solid #ccc;
    border-radius: 5px;
    overflow: hidden;
}

.entry-box-container {
    display: flex;
    padding: 10px;
    background-color: #f9f9f9;
    border-bottom: 1px solid #ddd;
}

.active-cell-display {
    width: 40px;
    text-align: center;
    font-weight: bold;
    padding: 5px;
    background-color: #eaeaea;
    border: 1px solid #ccc;
    border-right: none;
    border-radius: 3px 0 0 3px;
}

.entry-box {
    flex: 1;
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 0 3px 3px 0;
}

.instructions-container {
    flex: 1;
    border: 1px solid #ccc;
    border-radius: 5px;
    padding: 15px;
    overflow-y: auto;
}

.spreadsheet {
    display: table;
    border-collapse: collapse;
    width: 100%;
}

.row {
    display: table-row;
}

.cell, .header-cell {
    display: table-cell;
    border: 1px solid #ddd;
    padding: 5px;
    text-align: center;
    min-width: 45px;
    height: 25px;
    vertical-align: middle;
}

.header-cell {
    background-color: #f2f2f2;
    font-weight: bold;
}

.header-highlight {
    background-color: #e6f2ff;
}

.row-header {
    width: 30px;
}

.editable-cell {
    background-color: white;
}

.active-cell {
    outline: 2px solid #4d90fe;
}

.current-instruction {
    background-color: #f9f9f9;
    border-left: 4px solid #4d90fe;
    padding: 10px;
    margin-bottom: 15px;
}

.instruction-title {
    font-weight: bold;
    margin-bottom: 10px;
}

button {
    padding: 8px 15px;
    background-color: #4d90fe;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
}

button:hover {
    background-color: #357ae8;
}

.success-message {
    color: green;
    font-weight: bold;
}