body {
    font-family: sans-serif;
    margin: 0;
}
.main-content {
    margin-left: 250px;
}
.tab-button {
    padding: 0.5rem 1rem;
    text-decoration: none;
    color: #6c757d;
    background-color: transparent;
    border: 1px solid transparent;
    border-top-left-radius: 0.25rem;
    border-top-right-radius: 0.25rem;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
    cursor: pointer;
    font-size: 1rem;
}
.tab-button.active {
    color: #FFC222;
    background-color: #fff;
    border-color: #dee2e6 #dee2e6 #fff;
    font-weight: 600;
}
/* Table and Containers */
.tab-content .tab-pane {
    display: none;
}
.tab-content .tab-pane.active {
    display: block;
}
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}
.data-table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
    color: #212529;
}
.data-table th, .data-table td {
    padding: 0.75rem;
    vertical-align: top;
    border: 1px solid #ddd;
    text-align: left;
}
.data-table thead th {
    color: #6b7280;
    background-color: #e9ecef;
    font-weight: 500;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.data-table td {
    color: #4b5563;
}
/* Buttons and Form Elements */
.btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    border-radius: 0.25rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}
.btn-primary {
    color: #fff;
    background-color: #FFC222;
    border-color: #FFC222;
}
.btn-primary:hover {
    background-color: #f5b921;
    border-color: #f5b921;
}
.btn-secondary {
    color: #fff;
    background-color: #6c757d;
    border-color: #6c757d;
}
.btn-secondary:hover {
    background-color: #5c636a;
    border-color: #565e64;
}
.btn-link {
    color: #0d6efd;
    text-decoration: none;
    padding: 0;
}
.btn-link:hover {
    text-decoration: underline;
}
.btn.disabled {
    opacity: 0.65;
    pointer-events: none;
}
.form-select {
    display: inline-block;
    width: auto;
    padding: 0.375rem 1.75rem 0.375rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    background-color: #fff;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1050;
}
.modal-overlay.show {
    display: flex;
}
.modal-content {
    background-color: #fff;
    border-radius: 0.5rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    width: 90%;
    max-width: 500px;
    overflow: hidden;
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid #dee2e6;
}
.modal-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 500;
}
.modal-body {
    padding: 1rem;
}
.modal-footer {
    display: flex;
    justify-content: flex-end;
    padding: 1rem;
    border-top: 1px solid #dee2e6;
}
.btn-close {
    padding: 0.5rem;
    margin: -0.5rem -0.5rem -0.5rem auto;
    background-color: transparent;
    border: 0;
    opacity: 0.5;
    cursor: pointer;
    font-size: 1.5rem;
    line-height: 1;
    color: #333;
}