:root{color-scheme:light dark;font-family:system-ui,-apple-system,Segoe UI,sans-serif}body{margin:0}main{max-width:480px;margin:0 auto;padding:1rem}.screen{display:flex;flex-direction:column;gap:.75rem}.row{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}.empty{opacity:.7}.count{font-weight:600}.warning{color:#b45309}.session-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.5rem}.session-list li{display:flex;align-items:center;justify-content:space-between;gap:.5rem}.session-open{flex:1;text-align:left}button{padding:.5rem .75rem;border-radius:6px;border:1px solid #ccc;background:#fff;cursor:pointer}button.primary{background:#2563eb;color:#fff;border-color:#2563eb}button.danger{color:#b91c1c;border-color:#b91c1c}.dialog{border:1px solid #ccc;border-radius:8px;padding:1rem;display:flex;flex-direction:column;gap:.5rem}