body{font-family:Arial,sans-serif;margin:0;padding:0;background-color:#f8f9fa;overflow-x:hidden;box-sizing:border-box}*,*:before,*:after{box-sizing:inherit}#main-container{display:flex;justify-content:center;padding:20px;width:100%}#interface-container{display:flex;flex-direction:column;width:75%;max-width:1200px;margin:0 10px;transition:width .3s ease}#dashboard-container{display:none;margin-left:10px;width:60%;max-width:1200px;padding:20px;background:#fff;border-radius:12px;box-shadow:0 4px 8px #0000001a;transition:width .3s ease}section{background:#fff;padding:20px;border-radius:12px;box-shadow:0 4px 8px #0000001a;margin-bottom:20px;transition:transform .3s ease}section:hover{transform:translateY(-5px)}h2{margin-top:0;font-size:1.5em;color:#2c3e50;border-bottom:2px solid #ddd;padding-bottom:10px}button{display:inline-block;margin:10px 0;padding:10px 25px;background-color:#3498db;color:#fff;border:none;border-radius:25px;cursor:pointer;font-size:1em;box-shadow:0 2px 4px #0003;transition:background-color .3s ease,box-shadow .3s ease}button:hover{background-color:#2980b9;box-shadow:0 4px 8px #0000004d}input[type=text],input[type=number],select,input[type=file]{width:100%;padding:10px;margin:10px 0;border:1px solid #ccc;border-radius:25px;font-size:1em;box-shadow:inset 0 2px 4px #0000001a;transition:box-shadow .3s ease}input[type=text]:focus,input[type=number]:focus,select:focus,input[type=file]:focus{box-shadow:inset 0 4px 8px #0003}#side-menu{display:flex;flex-direction:column}#side-menu a{text-decoration:none;color:#3498db;margin:5px 0;font-weight:700;transition:color .3s ease}#side-menu a:hover{text-decoration:underline;color:#2980b9}.dashboard-section{display:none}.dashboard-section.active{display:block}#blocks-container{margin-top:20px}.block-item{display:flex;align-items:center;margin-bottom:10px}.block-item input{margin-right:10px;padding:5px;flex:1}.delete-checkbox{margin-right:10px}#action-buttons{display:flex;gap:10px}#student-status{color:#e74c3c}.access-dashboard{background-color:#3498db;color:#fff}.close-dashboard{background-color:#e74c3c;color:#fff}#queue-container{display:none;width:60%;padding:20px;background:#fff;border-radius:12px;box-shadow:0 4px 8px #0000001a;margin-left:10px}#feedback-message,#student-feedback-message{display:none;text-align:center;padding:10px;background-color:#dff0d8;color:#3c763d;border:1px solid #d6e9c6;border-radius:5px;margin-top:10px;transition:opacity .3s ease}.switch{position:relative;display:inline-block;width:34px;height:20px;margin-left:10px}.switch input{display:none}.slider{position:absolute;cursor:pointer;inset:0;background-color:#ccc;transition:.4s;border-radius:34px}.slider:before{position:absolute;content:"";height:14px;width:14px;left:3px;bottom:3px;background-color:#fff;transition:.4s;border-radius:50%}input:checked+.slider{background-color:#3498db}input:checked+.slider:before{transform:translate(14px)}.slider.round{border-radius:34px}.slider.round:before{border-radius:50%}