:root{font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif;color:#282331;background:#f7f4ff;font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,input{font:inherit}.login-shell{display:grid;min-height:100vh;place-items:center;padding:24px 18px}.login-card{width:min(100%,420px);padding:32px 26px;border:1px solid #e6e0ef;border-radius:24px;background:#fff;box-shadow:0 18px 60px #3726541a}.login-copy{margin:12px 0 24px;color:#655e6d;line-height:1.6}.login-form{display:grid;gap:12px}.login-form label{font-size:14px;font-weight:700}.login-form button{min-height:48px;margin-top:4px}.app-shell{display:grid;grid-template-rows:auto 1fr auto;min-height:100vh;max-width:720px;margin:0 auto;background:#fff}.app-header{display:flex;align-items:center;justify-content:space-between;padding:24px 20px 18px;border-bottom:1px solid #eee9f7}.eyebrow{margin:0 0 4px;color:#6750a4;font-size:11px;font-weight:700;letter-spacing:.08em}h1{margin:0;font-size:26px}.status{padding:7px 10px;border-radius:999px;color:#4e3c7a;background:#eee8ff;font-size:12px}.logout-button{min-height:38px;padding:0 14px;color:#4e3c7a;background:#eee8ff;font-size:13px}.conversation{display:flex;flex-direction:column;gap:12px;overflow-y:auto;padding:22px 18px}.bubble{width:fit-content;max-width:82%;padding:12px 15px;border-radius:18px;line-height:1.55}.bubble.assistant{align-self:flex-start;border-bottom-left-radius:6px;background:#f0edf5}.bubble.user{align-self:flex-end;border-bottom-right-radius:6px;color:#fff;background:#6750a4}.composer{padding:12px 16px max(16px,env(safe-area-inset-bottom));border-top:1px solid #eee9f7;background:#fff}.composer label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.input-row{display:flex;gap:10px}input{min-width:0;flex:1;padding:13px 15px;border:1px solid #d8d0e5;border-radius:14px;outline:none}input:focus{border-color:#6750a4;box-shadow:0 0 0 3px #eee8ff}button{padding:0 18px;border:0;border-radius:14px;color:#fff;background:#6750a4;font-weight:700;cursor:pointer}button:disabled{opacity:.45;cursor:default}.error{margin:0 0 8px;color:brown;font-size:13px}@media(min-width:721px){body{padding:24px}.app-shell{min-height:calc(100vh - 48px);border:1px solid #e6e0ef;border-radius:24px;box-shadow:0 18px 60px #3726541a;overflow:hidden}}