:root{--bg: #0f1115;--panel: #161922;--panel-2: #1d2230;--text: #e8ecf1;--muted: #8a93a6;--accent: #0b6e4f;--accent-2: #11a37b;--mine: #1f3a52;--error: #e5484d;--radius: 12px}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.screen{min-height:100dvh;display:flex;flex-direction:column}#login{align-items:center;justify-content:center;padding:1rem}.card{background:var(--panel);padding:2rem;border-radius:var(--radius);width:min(360px,100%);display:flex;flex-direction:column;gap:1rem;box-shadow:0 10px 30px #0006}.card h1{margin:0 0 .5rem;font-size:1.5rem;text-align:center}.card label{display:flex;flex-direction:column;gap:.35rem;font-size:.9rem;color:var(--muted)}.card input{background:var(--panel-2);border:1px solid #2a3042;border-radius:8px;padding:.7rem .85rem;color:var(--text);font-size:1rem;outline:none}.card input:focus{border-color:var(--accent-2)}.card button{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:.75rem;font-size:1rem;cursor:pointer}.card button:hover{background:var(--accent-2)}.error{color:var(--error);margin:0;font-size:.9rem;min-height:1.2em}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1rem;border-bottom:1px solid #232838;background:var(--panel)}.chat-header h1{margin:0;font-size:1.1rem}.who{display:flex;align-items:center;gap:.75rem;color:var(--muted);font-size:.9rem}.link{background:transparent;color:var(--accent-2);border:0;cursor:pointer;font-size:.9rem;padding:0}.messages{list-style:none;margin:0;padding:1rem;flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:.5rem}.msg{background:var(--panel);padding:.6rem .8rem;border-radius:var(--radius);max-width:min(80%,520px);display:grid;grid-template-areas:"name time" "text text";grid-template-columns:1fr auto;gap:.15rem .75rem;align-self:flex-start}.msg.mine{background:var(--mine);align-self:flex-end}.msg .name{grid-area:name;font-size:.8rem;color:var(--accent-2);font-weight:600}.msg.mine .name{color:#9ec5ff}.msg .text{grid-area:text;white-space:pre-wrap;word-break:break-word}.msg .time{grid-area:time;font-size:.75rem;color:var(--muted)}.composer{display:flex;gap:.5rem;padding:.75rem;border-top:1px solid #232838;background:var(--panel);padding-bottom:calc(.75rem + env(safe-area-inset-bottom))}.composer input{flex:1;background:var(--panel-2);border:1px solid #2a3042;border-radius:999px;padding:.7rem 1rem;color:var(--text);font-size:1rem;outline:none}.composer input:focus{border-color:var(--accent-2)}.composer button{background:var(--accent);color:#fff;border:0;border-radius:999px;padding:0 1.25rem;font-size:1rem;cursor:pointer}.composer button:hover{background:var(--accent-2)}