.pblc-tool {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    font-family: 'Arial', sans-serif;
}

.pblc-tool h2 {
    text-align: center;
    color: #1F7295;
    font-size: 28px;
    margin-bottom: 20px;
}

#pblc-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#pblc-url {
    flex: 1;
    padding: 10px;
    font-size: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    transition: border-color 0.3s ease;
}

#pblc-url:focus {
    border-color: #1F7295;
    outline: none;
}

#pblc-submit {
    padding: 10px 20px;
    font-size: 16px;
    background: #1F7295;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s ease;
}

#pblc-submit:hover {
    background: #165f7a;
}

.pblc-results {
    margin-top: 20px;
}

.pblc-results table {
    width: 100%;
    border-collapse: collapse;
}

.pblc-results th,
.pblc-results td {
    padding: 10px;
    border: 1px solid #e0e0e0;
    text-align: left;
}

.pblc-results th {
    background: #f5f5f5;
    font-weight: 600;
}

.pblc-results tr:nth-child(even) {
    background: #f9f9f9;
}