:root{color-scheme:light;--bg: #f6f7f9;--surface: #ffffff;--surface2: #eef1f6;--border: #dfe4ec;--green: #15803d;--cyan: #1d4ed8;--yellow: #a16207;--red: #b91c1c;--text: #1b2433;--text-dim: #475467;--on-accent: #ffffff}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){color-scheme:dark;--bg: #0f1218;--surface: #171b24;--surface2: #202633;--border: #2b3343;--green: #5fd38d;--cyan: #82a8ff;--yellow: #f2c04e;--red: #ff8a8a;--text: #e7ebf3;--text-dim: #b0bacb;--on-accent: #0f1218}}:root[data-theme=dark]{color-scheme:dark;--bg: #0f1218;--surface: #171b24;--surface2: #202633;--border: #2b3343;--green: #5fd38d;--cyan: #82a8ff;--yellow: #f2c04e;--red: #ff8a8a;--text: #e7ebf3;--text-dim: #b0bacb;--on-accent: #0f1218}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%}body{background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.auth-shell{min-height:100vh;display:grid;place-items:center;padding:2rem 1rem}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:2rem;width:100%;max-width:380px}.auth-card h1{margin:0 0 1.5rem;font-size:1.5rem;color:var(--green);font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace}.auth-card p{color:var(--text-dim);font-size:.875rem;margin:.5rem 0 1.25rem}.field{display:flex;flex-direction:column;gap:.35rem;margin-bottom:1rem}.field label{font-size:.8rem;color:var(--text-dim)}.field input{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:.65rem .75rem;border-radius:8px;font:inherit;outline:none}.field input:focus{border-color:var(--cyan)}.btn{width:100%;background:var(--green);color:var(--on-accent);border:0;padding:.7rem 1rem;border-radius:8px;font-weight:600;cursor:pointer;font:inherit}.btn:disabled{opacity:.55;cursor:not-allowed}.btn.secondary{background:transparent;color:var(--text);border:1px solid var(--border)}.error{color:var(--red);font-size:.85rem;margin:.5rem 0}.muted-link{color:var(--cyan);text-decoration:none;font-size:.85rem}.muted-link:hover{text-decoration:underline}.topbar{height:44px;display:flex;justify-content:space-between;align-items:center;padding:0 1rem;background:var(--surface);border-bottom:1px solid var(--border);font-size:.875rem}.topbar .brand{display:flex;align-items:center;gap:.5rem;font-weight:700;letter-spacing:-.01em}.topbar .brand-logo{display:block;width:26px;height:26px}.user-menu{position:relative}.user-btn{width:30px;height:30px;border:1px solid var(--border);border-radius:50%;background:color-mix(in srgb,var(--cyan) 14%,transparent);color:var(--cyan);font:inherit;font-size:11px;font-weight:700;cursor:pointer}.user-btn:hover{border-color:var(--cyan)}.user-dropdown{position:absolute;right:0;top:38px;z-index:50;width:240px;padding:6px;border:1px solid var(--border);border-radius:10px;background:var(--surface);box-shadow:0 8px 28px #0000002e}.user-dropdown .user-email{padding:6px 10px 4px;font-size:12px;color:var(--text-dim);overflow:hidden;text-overflow:ellipsis}.user-dropdown hr{border:none;border-top:1px solid var(--border);margin:6px 4px}.menu-item{display:block;box-sizing:border-box;width:100%;padding:8px 10px;border:none;border-radius:6px;background:transparent;color:var(--text);font:inherit;font-size:13px;text-align:left;text-decoration:none;cursor:pointer}.menu-item:hover{background:var(--surface2)}.guide-frame{width:100%;height:calc(100vh - 44px);border:0;display:block;background:var(--bg)}.loading{padding:2rem;color:var(--text-dim);text-align:center}