.chemnest-fullscreen-bg {
    background-image: url('https://via.placeholder.com/1920x1080?text=Laboratory+Background');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    padding: 40px 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.chemnest-portal-container {
    background: rgba(255, 255, 255, 0.98);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    width: 100%;
    max-width: 800px;
    font-family: sans-serif;
}

.chemnest-search-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.chemnest-search-form input[type="text"] {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
}

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

.chemnest-table th, .chemnest-table td {
    padding: 10px;
    border: 1px solid #e2e8f0;
    text-align: left;
}

.chemnest-table th { background-color: #f8fafc; }

.chemnest-btn {
    display: inline-block;
    padding: 10px 15px;
    color: #fff !important;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    border: none;
    cursor: pointer;
    transition: 0.2s;
}

.btn-search { background-color: #2563eb; }
.btn-search:hover { background-color: #1d4ed8; }

.btn-doc { background-color: #059669; margin: 5px 10px 5px 0; }
.btn-doc:hover { background-color: #047857; }

.chemnest-error {
    color: #b91c1c;
    background: #fef2f2;
    padding: 15px;
    border-radius: 4px;
    border-left: 4px solid #b91c1c;
}
.batch-details-card h3, .batch-details-card h4 {
    margin-top: 25px;
    margin-bottom: 10px;
    color: #1e293b;
}