body {
    margin: 10px;
    padding: 10px;
    background-color: #f4f4f9;
}
#year{
    width: 46px;
    border: none;
}
#date{
    border: none;
    width: 20px;
}
#serial{
    width: 90px;
}
.quotation-container {
    max-width: 900px;
    margin: 20px auto;
    background: #ffffff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

header .company-logo {
    width: 250px;
    display: block;
    margin: 0 auto 10px;
}

header h1 {
    margin: 0;
    font-size: 1.8em;
    color: #333;
}

header p {
    margin: 5px 0;
    font-size: 0.9em;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

table th {
    background-color: #f4f4f4;
    font-weight: bold;
    text-align: center;
    padding: 5px;
    font-size: 1em;
}

table td {
    font-size: 1em;
}

table input[type="text"] {
    width: 90%;
    padding: 5px;
    font-size: 0.9em;
    border: none;
}

table input[type="number"] {
    width: 60%;
    padding: 4px;
    font-size: 0.9em;
    text-align: right;
    border: none;
}

table th:nth-child(2), 
table td:nth-child(2) {
    width: 60%; /* Product/activity column */
}

table th:nth-child(3), 
table td:nth-child(3) {
    width: 10%; /* Qty column */
}

table th:nth-child(4), 
table td:nth-child(4) {
    width: 15%; /* Price per unit column */
}

table th:nth-child(5), 
table td:nth-child(5) {
    width: 15%; /* Total cost column */
}

.btn {
    display: block;
    width: 150px;
    margin: 10px auto;
    padding: 8px;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    text-align: center;
    cursor: pointer;
}

textarea {
    font-size: 1em;
    border: 1px solid #ccc;
    border-radius: 4px;
    overflow: hidden;
    line-height: 1.5;
    transition: height 0.2s ease;
    border: none;
}
.total-section-container {
    text-align: right;
    margin-right: 32px;
    font-size: 1.2em;
}