body { font: 16px/1.5 -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
       background: #1e1f22; color: #e8eaed; margin: 0; padding: 16px; display: flex; justify-content: center; }
main { max-width: 520px; width: 100%; margin-top: 8vh; }
h1 { font-size: 22px; margin: 0 0 16px; }
.rooms { display: flex; flex-direction: column; gap: 12px; margin: 12px 0; }
.room { display: block; background: #26282c; border: 1px solid #3a3d43; border-radius: 10px; padding: 16px 18px;
        color: #e8eaed; text-decoration: none; min-height: 44px; }
.room:hover, .room:focus-visible { border-color: #3d7eff; outline: none; }
.room .t { display: block; font-size: 19px; font-weight: 600; }
.room .u { display: block; color: #8ab4ff; font-size: 14px; margin-top: 2px; overflow-wrap: anywhere; }
.note { color: #a5a9b1; font-size: 14px; }
form { display: flex; flex-direction: column; gap: 8px; margin: 8px 0 16px; }
label { color: #a5a9b1; font-size: 14px; }
input[type=password], input[type=text] { font: inherit; font-size: 18px; padding: 10px 12px; border-radius: 8px;
    border: 1px solid #3a3d43; background: #2f3237; color: #e8eaed; min-height: 44px; }
input:focus-visible, .btn:focus-visible, .link:focus-visible { outline: 2px solid #3d7eff; outline-offset: 1px; }
.btn { font: inherit; min-height: 44px; border-radius: 8px; border: 1px solid #3d7eff; background: #3d7eff; color: #fff; cursor: pointer; }
.btn:disabled { opacity: .5; }
.link { font: inherit; background: none; border: 0; color: #8ab4ff; cursor: pointer; padding: 0; text-decoration: underline; }
.msg { color: #ff6b6b; min-height: 1.2em; margin: 0; }
.role { color: #a5a9b1; }
.role strong { color: #e8eaed; }