.player {
    width: 100%;
    max-width: 300px;
    margin: 5px auto;
    display: block;
}

.player:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

.passage {
    width: 100px;
    font-weight: 600;
}

.params {
    font-weight: 400;
    margin: 0;
}

.table {
    display: table;
    width: 100%;
    overflow-x: auto;
    white-space: nowrap;
    border-collapse: separate;
    border-spacing: 0;
}

.table td {
    vertical-align: middle !important;
    padding: 15px 8px;
    border-bottom: 1px solid #dee2e6;
}

.table th {
    background-color: #f8f9fa;
    font-weight: 600;
    padding: 15px 8px;
    border-bottom: 2px solid #dee2e6;
    position: sticky;
    top: 0;
    z-index: 10;
}

.audio-col {
    min-width: 160px;
    width: 200px;
    text-align: center;
}

/* Highlight the proposed method */
.table th:nth-child(4),
.table td:nth-child(4) {
    background-color: #e8f5e8;
    font-weight: 600;
}

.table tr:hover {
    background-color: #f5f5f5;
}

.table tr:hover td:nth-child(4) {
    background-color: #d4edda;
}

.row-grey {
    background-color: #f8f8f8;
}

.section {
    margin-bottom: 3rem;
}

.section h3 {
    color: #495057;
    margin-bottom: 1rem;
}

.iframe-container {
  position: relative;
  overflow: hidden;
  width: 100%;
  padding-top: 56.25%; /* 16:9 Aspect Ratio (divide 9 by 16 = 0.5625) */
}

/* Then style the iframe to fit in the container div with full height and width */
.responsive-iframe {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 100%;
}

.abstract {
    margin: 0;
    max-width: 70%;
    margin: 0 auto !important; 
	float: none !important; 
}

.target {
    color: rgb(126, 126, 126);
    font-weight: 600;
}

.others {
    color: rgb(67,74,101);
    font-weight: 600;
}

.tcn {
    color: rgb(227, 126, 35);
    font-weight: 600;
}

.ours {
    color: rgb(89, 146, 54);
    font-weight: 600;
}

.detail {
    font-size: small;
    font-weight: 500;
}

.btn {
    border-radius: 20px;
    margin: 5px;
}

/* Responsive design */
@media (max-width: 768px) {
    .audio-col {
        min-width: 120px;
        width: 150px;
    }
    
    .player {
        width: 100%;
        max-width: 140px;
    }
    
    .table {
        font-size: 0.9rem;
    }
    
    .abstract {
        max-width: 95%;
    }
}

@media (max-width: 576px) {
    .table th,
    .table td {
        padding: 8px 4px;
    }
    
    .audio-col {
        min-width: 100px;
        width: 120px;
    }
    
    .player {
        max-width: 110px;
    }
}

/* Loading indicator for audio */
.player:not([src]) {
    opacity: 0.6;
}

/* Smooth transitions */
.table tr {
    transition: background-color 0.2s ease;
}

.btn {
    transition: all 0.2s ease;
}