:root{font-synthesis:none;text-rendering:optimizeLegibility}html,body,#root{width:100%;height:100%;margin:0;overflow:hidden}.app-shell{display:grid;grid-template-rows:auto minmax(0,1fr);width:100%;height:100dvh;background:radial-gradient(circle at 10% 0%,rgb(13 148 136 / 12%),transparent 35%),var(--mui-palette-background-default)}.app-header{border-bottom:1px solid var(--mui-palette-divider);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.app-header .MuiToolbar-root{min-height:56px;gap:10px}.brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:50%;object-fit:cover}.chat-surface{min-width:0;min-height:0;overflow:hidden}.auth-screen{display:grid;min-height:100dvh;place-items:center;padding:24px;color:#e6f0ed;background:radial-gradient(circle at 50% 0%,rgb(13 148 136 / 18%),transparent 42%),#071311;font-family:Inter,ui-sans-serif,system-ui,sans-serif}.auth-panel{width:min(100%,420px);padding:32px;border:1px solid rgb(255 255 255 / 12%);border-radius:16px;background:#10201d;box-shadow:0 20px 60px #0000004d}.auth-logo{width:56px;height:56px;border-radius:50%}.auth-eyebrow{margin:18px 0 4px;color:#86d8ce;font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.auth-panel h1{margin:0;font-size:clamp(1.6rem,7vw,2.2rem)}.auth-panel p{line-height:1.55}.auth-error{color:#ffb4ab}.auth-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.auth-actions button{min-height:44px;padding:10px 18px;border:1px solid transparent;border-radius:10px;color:#f2fffc;font:inherit;font-weight:700;cursor:pointer}.auth-primary-button{background:#0f766e}.auth-secondary-button{border-color:#fff3!important;background:transparent}@media(min-width:1280px){.app-shell{padding:20px;gap:14px}.app-header,.chat-surface{overflow:hidden;border:1px solid var(--mui-palette-divider);border-radius:16px;background-color:var(--mui-palette-background-paper);box-shadow:0 20px 60px #0000001f}}