.next-challenge-widget{margin:20px auto;padding:10px;max-width:800px;background:#575757cc;box-shadow:0 2px 4px #0000001a;display:flex;flex-direction:row;gap:20px}.challenge-info{display:flex;flex-direction:column;justify-content:center}.challenge-info h3{margin:0;color:#e6e6e6;font-size:1.2em;text-align:center}.session-code{font-family:monospace;font-weight:700;color:#4698ef;font-size:1.1em;text-align:center}.creator{color:#6c757d;font-size:.9em}.challenge-details{display:flex;flex-direction:column;flex:1}.start-time{color:#48ec6e;font-size:1.1em;text-align:center}.scheduled-time{color:#bec7ce;font-size:.9em;text-align:center}.challenge-meta{display:flex;flex-direction:column;gap:4px}.meta-item{color:#bec7ce;font-size:.9em;text-align:center}.meta-item strong{color:#e6e6e6}.atlas,.duration{color:#495057;font-size:.9em}.join-challenge-btn,.see-results-btn{background-color:#007bff;color:#fff;border:none;padding:5px 12px;border-radius:6px;cursor:pointer;font-size:1em;font-weight:500;transition:background-color .2s;margin-top:8px;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;text-align:center;min-height:32px;box-sizing:border-box}.join-challenge-btn:hover,.see-results-btn:hover{text-decoration:none;color:#fff}.join-challenge-btn:hover:not(:disabled),.see-results-btn:hover:not(:disabled){background-color:#0056b3;transform:scale(1.1)}.delete-challenge-btn{background:#f44;color:#fff;border:none;padding:5px 12px;border-radius:6px;cursor:pointer;font-size:1em;font-weight:500;transition:background-color .2s;margin-top:8px;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;text-align:center;min-height:32px;box-sizing:border-box}.delete-challenge-btn:hover{background:#c00;transform:scale(1.1)}.delete-challenge-btn:active{transform:scale(.95)}.loading{text-align:center;color:#6c757d;font-style:italic}.error{text-align:center;color:#dc3545;background-color:#f8d7da;padding:8px;border-radius:4px;border:1px solid #f5c6cb}.no-challenge{text-align:center;color:#6c757d;font-style:italic}@media (max-width: 768px){.next-challenge-widget{margin:15px;padding:15px;flex-direction:column;gap:15px}.challenge-info,.challenge-details,.challenge-meta{align-items:center}.challenge-header{flex-direction:column;gap:4px;align-items:flex-start}}