.cot-opportunities-list {
    display: grid;
    gap: 20px;
    margin: 20px 0;
}

.cot-opportunity-card {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 20px;
    transition: all 0.3s ease;
}

.cot-opportunity-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: #0073aa;
}

.cot-opportunity-card.urgent {
    border-left: 4px solid #dc3545;
    background: #fffbfb;
}

.cot-opportunity-card h3 {
    margin-top: 0;
    color: #0073aa;
}

.cot-opportunity-card .org {
    color: #666;
    margin: 5px 0;
}

.cot-opportunity-card .deadline {
    font-weight: bold;
    color: #d97706;
    background: #fef3c7;
    padding: 5px 10px;
    border-radius: 3px;
    display: inline-block;
    margin: 10px 0;
}

.cot-opportunity-card .days {
    background: #dbeafe;
    color: #1e40af;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.9em;
}

.cot-opportunity-card .button {
    background: #0073aa;
    color: white;
    padding: 8px 15px;
    text-decoration: none;
    border-radius: 3px;
    display: inline-block;
    border: none;
}

.cot-opportunity-card .button:hover {
    background: #005a87;
}