*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#08101d;color:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}body{background:linear-gradient(180deg,#111a2b 0,#08101d 38%);min-height:100dvh}main{width:min(640px,100%);margin:auto;padding:18px 16px 32px}header{display:flex;align-items:center;gap:12px;margin-bottom:22px}.brand{width:48px;height:48px;border-radius:15px;background:#4f7cff;color:#fff;text-decoration:none;display:grid;place-items:center;font-size:24px;font-weight:800}h1{font-size:24px;margin:0}header span,.muted{color:#8d9ab0;font-size:13px}.card{background:#101827;border:1px solid #1e2a3d;border-radius:22px;padding:18px}label{display:block;color:#aeb8ca;margin:14px 0 7px}input,textarea{width:100%;border:1px solid #2a3549;background:#0d1522;color:#fff;border-radius:14px;padding:14px;font:inherit;outline:none}textarea{resize:none;min-height:54px}button,.action{display:block;width:100%;border:0;border-radius:14px;padding:14px;background:#4f7cff;color:#fff;font:inherit;font-weight:800;text-align:center;text-decoration:none;margin-top:14px}.secondary{background:#182235}.link,.back,nav a{display:inline-block;color:#9eb7ff;text-decoration:none;margin-top:16px}.error{background:#3a1720;color:#ffbcc7;padding:12px;border-radius:12px}.chat{display:flex;align-items:center;gap:12px;text-decoration:none;color:#fff;padding:14px 2px;border-bottom:1px solid #172234}.avatar{width:50px;height:50px;border-radius:16px;background:#26334a;display:grid;place-items:center;font-weight:800}.grow{flex:1;min-width:0}.grow small{display:block;color:#8895aa;margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.badge{min-width:24px;height:24px;padding:0 7px;border-radius:12px;background:#4f7cff;display:grid;place-items:center;font-size:12px;font-weight:800}nav{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.empty{text-align:center;color:#8490a5;padding:70px 20px}.messages{display:flex;flex-direction:column;gap:8px;padding:8px 0 100px}.msg{max-width:78%;background:#1a2638;border-radius:16px;padding:11px 13px}.msg.mine{align-self:flex-end;background:#315fdd}.composer{position:fixed;left:50%;transform:translateX(-50%);bottom:0;width:min(640px,100%);padding:10px 14px calc(10px + env(safe-area-inset-bottom));display:flex;gap:8px;background:#0a111d}.composer textarea{flex:1}.composer button{width:52px;margin:0;padding:0}.auth{margin-top:18vh}