*{margin:0;padding:0;box-sizing:border-box}body,html{height:100%;font-family:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,'Open Sans','Helvetica Neue',sans-serif}body{display:flex;flex-direction:column;min-height:100vh;background-color:#f4f7f6;color:#333;font-size:16px;line-height:1.5}header{display:flex;justify-content:space-between;align-items:center;padding:12px 25px;background-color:#4a6fa5;color:#fff;border-bottom:2px solid #3b5998;position:sticky;top:0;z-index:1000}header h1{font-size:1.6em;font-weight:600;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-right:10px}#return-button{padding:8px 15px;background-color:#e9ecef;color:#212529;border:1px solid #ced4da;border-radius:4px;cursor:pointer;font-size:.9em;display:inline-flex;align-items:center;text-decoration:none;transition:background-color .2s ease,border-color .2s ease;flex-shrink:0;white-space:nowrap}#return-button .icon{margin-right:6px;font-weight:700;line-height:1}#return-button:hover{background-color:#dee2e6;border-color:#adb5bd}main{flex-grow:1;padding:25px;overflow-y:auto;display:flex;flex-direction:column}.tab-container{order:1;flex-shrink:0}.tab-nav{border-bottom:2px solid #4a6fa5;position:relative;display:flex;padding-left:0}button.tab-link{background-color:#e9ecef;border:1px solid #ced4da;border-bottom:none;border-top-left-radius:5px;border-top-right-radius:5px;padding:10px 18px;cursor:pointer;margin-right:3px;margin-bottom:-1px;position:relative;font-size:1em;font-weight:500;color:#495057;transition:color .2s ease,background-color .2s ease,border-color .2s ease;white-space:nowrap}button.tab-link:hover{background-color:#f1f3f5;color:#000}button.tab-link.active{background-color:#fff;border-color:#ced4da #ced4da #fff;color:#4a6fa5;font-weight:600;z-index:2;margin-bottom:-1px;border-bottom:1px solid #fff}.tab-content{display:none;padding:25px;border:1px solid #ced4da;border-top:none;background-color:#fff;border-radius:0 0 6px 6px;clear:both;margin-bottom:25px}.tab-content.active{display:block}.options-container{order:2;display:flex;flex-direction:column;gap:10px;margin-top:auto;padding-top:20px;flex-shrink:0}.options-container details{border:1px solid #ced4da;border-radius:6px;background-color:#e9ecef;overflow:hidden;transition:background-color .2s ease,opacity .3s ease}.options-container details[open]{background-color:#f8f9fa}.options-container details summary{padding:10px 15px;cursor:pointer;font-weight:600;color:#495057;outline:0;user-select:none;list-style-position:inside;transition:background-color .2s ease;border-bottom:1px solid transparent}.options-container details[open]>summary{background-color:#e2e6ea;border-bottom-color:#ced4da}.options-container details summary:hover{background-color:#dee2e6}.controls-content,.listening-options-content{padding:15px;display:flex;align-items:center;gap:10px 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#dee2e6;background-color:#f8f9fa;border-top-left-radius:3px;border-top-right-radius:3px;flex-shrink:0}.list-header h3{padding:0;margin:0;border-bottom:none;font-size:1.1em;font-weight:600;color:#495057;background-color:transparent;position:static;white-space:nowrap;margin-right:15px}.list-actions{margin:0;display:flex;gap:6px;flex-wrap:nowrap;flex-shrink:0;align-items:center}.list-actions .btn-danger{margin-left:1.2em}.list-actions button{padding:5px 10px;font-size:.85em;line-height:1.2;min-width:auto;font-weight:500;cursor:pointer;color:#fff;border:1px solid transparent;border-radius:4px;transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;white-space:nowrap;display:inline-flex;align-items:center;justify-content:center}.list-actions button:focus{outline:0;box-shadow:0 0 0 .2rem rgba(var(--btn-focus-shadow-rgb,13,110,253),.5)}.list-actions button .icon{margin-right:4px;font-size:1em;vertical-align:middle;user-select:none}.list-actions button .button-text-label{vertical-align:middle}#listen-speak-selected-btn,#speak-selected-btn{background-color:#0dcaf0;border-color:#0dcaf0;color:#fff!important;--btn-focus-shadow-rgb:13,202,240}#listen-speak-selected-btn:hover,#speak-selected-btn:hover{background-color:#31d2f2;border-color:#25cff2}#listen-toggle-btn{background-color:#198754;border-color:#198754;color:#fff!important;--btn-focus-shadow-rgb:25,135,84;padding:10px 18px;font-size:.95em}#listen-toggle-btn:hover{background-color:#157347;border-color:#146c43}#listen-toggle-btn.listening{background-color:#dc3545;border-color:#dc3545;color:#fff!important;--btn-focus-shadow-rgb:220,53,69}#listen-toggle-btn.listening:hover{background-color:#bb2d3b;border-color:#b02a37}#listen-delete-selected-btn,#speak-delete-selected-btn,.btn-danger{background-color:#dc3545;border-color:#dc3545;color:#fff!important;--btn-focus-shadow-rgb:220,53,69}#listen-delete-selected-btn:hover,#speak-delete-selected-btn:hover,.btn-danger:hover{background-color:#bb2d3b;border-color:#b02a37}#listen-clear-all-btn,#speak-clear-all-btn,.btn-warning{background-color:#ffc107;border-color:#ffc107;color:#212529!important;--btn-focus-shadow-rgb:255,193,7}#listen-clear-all-btn:hover,#speak-clear-all-btn:hover,.btn-warning:hover{background-color:#ffca2c;border-color:#ffc720}.selectable-list{list-style:none;padding:0;margin:0;overflow-y:auto;flex-grow:1;min-height:50px}.selectable-list li{display:flex;align-items:center;padding:10px 15px;border-bottom:1px solid #f0f0f0;cursor:default;transition:background-color .15s ease}.selectable-list li:last-child{border-bottom:none}.selectable-list li:hover{background-color:#f8f9fa}.selectable-list input[type=checkbox]{margin-right:15px;flex-shrink:0;cursor:pointer;width:1.1em;height:1.1em;vertical-align:middle}.selectable-list li span{flex-grow:1;word-break:break-word;line-height:1.45;cursor:pointer;vertical-align:middle}footer{padding:18px 25px;background-color:#343a40;color:#dee2e6;text-align:center;font-size:.9em;border-top:2px solid #212529;position:sticky;bottom:0;z-index:1000;flex-shrink:0}footer a{color:#adb5bd;text-decoration:none;margin-left:15px;transition:color .2s ease}footer a:hover{text-decoration:underline;color:#f8f9fa}@media (max-width:768px){body{font-size:15px}header{padding:10px 15px}header h1{font-size:1.4em}#return-button{font-size:.85em;padding:7px 12px}main{padding:15px}.options-container{margin-top:20px;gap:6px}.options-container summary{padding:10px 15px}.controls-content,.listening-options-content{padding:12px 15px;gap:8px 12px}.controls-content #language-select,.controls-content #voice-select{min-width:150px;max-width:250px}.listening-options-content .option-group{flex-basis:100%}.tab-container{margin-top:0}.tab-content{margin-bottom:20px}.tab-link{padding:10px 15px;font-size:1em}.tab-content{padding:20px}.tab-content h2{font-size:1.3em}.list-header{padding:8px 12px}.list-header h3{font-size:1.05em}.list-actions{gap:6px}.list-actions button{padding:4px 8px;font-size:.8em}.list-actions button .icon{margin-right:3px}.list-actions .btn-danger{margin-left:1em}#listen-toggle-btn{font-size:.9em;padding:9px 15px}.list-container{min-height:120px;max-height:40vh}}@media (max-width:600px){body{font-size:14px}header{padding:8px 10px}header h1{font-size:1.1em;margin-right:5px}#return-button .button-text{display:none}#return-button .icon{margin-right:0}#return-button{padding:6px 10px}main{padding:10px}.controls-content,.listening-options-content{flex-direction:column;align-items:stretch;gap:12px}.controls-content label,.listening-options-content label:not(.checkbox-label){margin-bottom:3px;font-weight:700;text-align:left}.controls-content #language-select,.controls-content #voice-select{width:100%;min-width:auto;max-width:none}.listening-options-content .option-group{flex-basis:auto;flex-direction:column;align-items:flex-start}.listening-options-content input[type=number],.listening-options-content select{width:100%;flex-grow:0}.listening-options-content .checkbox-group{flex-direction:row;align-items:center}.listening-options-content .checkbox-label{font-weight:400}.options-container{margin-top:15px;gap:8px}.options-container summary{padding:10px 15px;font-size:1em}.tab-nav{padding:0 5px}.tab-link{padding:10px 10px;font-size:.95em;margin-right:2px}.tab-content{padding:15px;margin-bottom:15px}.tab-content h2{font-size:1.2em;margin-bottom:15px;padding-bottom:10px}.listen-controls-primary{flex-direction:column;align-items:stretch;gap:10px;margin-bottom:20px}#listen-status{order:2;margin-left:0;text-align:center}#listen-toggle-btn{order:1;font-size:.9em;padding:9px 12px}.list-header{padding:8px 10px;flex-wrap:wrap}.list-header h3{font-size:1em;margin-right:10px;margin-bottom:8px;width:100%;text-align:center}.list-actions{gap:5px;width:100%;justify-content:center;flex-wrap:wrap}.list-actions button .button-text-label{display:none}.list-actions button{padding:5px 8px}.list-actions button .icon{margin-right:0;font-size:1.1em}.list-actions .btn-danger{margin-left:0}.list-container{min-height:100px;max-height:35vh;margin-top:15px}.selectable-list li{padding:8px 12px}.selectable-list input[type=checkbox]{margin-right:12px}footer{padding:12px 10px;font-size:.8em}footer a{margin-left:10px}}