* {
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif !important;
    color: #000000 !important;
    background-color: #ffffff;
    margin: 0;
    padding: 20px;
    line-height: 1.4;
}

h1, h2, h3, h4, p, th, td, label, div, span, input, select, button {
    color: #000000 !important;
    font-family: Arial, Helvetica, sans-serif !important;
}

header {
    margin-bottom: 25px;
    border-bottom: 3px solid #000000;
    padding-bottom: 10px;
}

header h1 {
    margin: 0;
    font-size: 26px;
    letter-spacing: 1px;
}

.toolbar {
    margin-bottom: 20px;
    display: flex;
    gap: 12px;
    align-items: center;
}

#searchBox {
    padding: 10px 15px;
    border: 2px solid #000000;
    width: 350px;
    font-size: 15px;
    outline: none;
}

.toolbar-btn {
    padding: 10px 20px;
    background-color: #ffffff;
    border: 2px solid #000000;
    cursor: pointer;
    font-weight: bold;
    font-size: 14px;
}

.toolbar-btn:hover {
    background-color: #000000;
    color: #ffffff !important;
}

.table-container {
    width: 100%;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    table-layout: auto; 
    border: 2px solid #000000;
}

th, td {
    border: 1px solid #000000;
    padding: 10px;
    text-align: left;
    vertical-align: top;
    font-size: 13px;
    word-wrap: break-word;
}

th {
    background-color: #f2f2f2;
    text-transform: none;
    font-size: 13px;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}

.pdb-id, .links-cell, .method-cell, .res-cell, .assembly-cell, .purified-cell, .release-date-cell {
    width: 1%; 
    white-space: nowrap; 
}

.na-info-cell { min-width: 130px; }
.seq-cell { min-width: 300px; }

.sortable { cursor: pointer; }
.sortable:hover { background-color: #e0e0e0; }

.btn-link-sm {
    display: inline-block;
    padding: 3px 8px;
    margin: 1px;
    background-color: #f2f2f2;
    color: #000000 !important;
    text-decoration: none;
    border: 1px solid #000000;
    font-size: 11px;
    font-weight: bold;
}

.btn-link-sm:hover {
    background-color: #000000;
    color: #ffffff !important;
}

.btn-link {
    display: inline-block;
    padding: 6px 12px;
    background-color: #000000;
    color: #ffffff !important;
    text-decoration: none;
    font-weight: bold;
    font-size: 12px;
    border: 1px solid #000000;
}

.chain-sequence-container {
    width: 100%;
}

.chain-item {
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 1px solid #eee;
}

.chain-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.seq-text {
    display: block;
    background-color: #f9f9f9;
    padding: 8px;
    border: 1px solid #ddd;
    font-family: "Courier New", Courier, monospace !important; 
    font-size: 14px;
    word-break: break-all;
    margin-top: 5px;
    color: #000 !important;
    white-space: pre-wrap;
}

.modal {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.hidden { display: none !important; }

.modal-content {
    background: #ffffff;
    padding: 30px;
    width: 90%;
    max-width: 1100px;
    max-height: 85vh;
    overflow-y: auto;
    border: 4px solid #000000;
    position: relative; 
}

.modal-header {
    margin-bottom: 25px;
    border-bottom: 2px solid #000000;
    padding-bottom: 10px;
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 15px;
    background: none;
    border: none;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr); 
    gap: 10px;
    margin: 15px 0 25px 0;
}

.filter-grid label {
    display: flex;
    align-items: center;
    font-size: 12px;
    cursor: pointer;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    border-top: 2px solid #000000;
    padding-top: 20px;
}

.links-cell .links-row {
    display: flex;
    gap: 4px;
    margin-bottom: 4px;
}

.links-cell .links-row:last-child {
    margin-bottom: 0;
}

header p a {
    color: #000000 !important;
    text-decoration-line: underline;
    text-decoration-style: dotted;
    text-decoration-color: #000000;
}

header p a:hover {
    color: #000000 !important;
}

.sequence-header-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.sequence-toggle {
    display: inline-flex;
    gap: 4px;
    margin-left: 8px;
}

.sequence-toggle-btn {
    padding: 2px 8px;
    border: 1px solid #000000;
    background-color: #ffffff;
    color: #000000 !important;
    font-size: 11px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1.2;
}

.sequence-toggle-btn.active {
    background-color: #000000;
    color: #ffffff !important;
}

.sequence-toggle-btn:hover {
    background-color: #000000;
    color: #ffffff !important;
}