:root{color-scheme:light;--page-bg:#f4f6f8;--workspace-bg:#f6f7f9;--panel-bg:#fff;--panel-bg-soft:#f9fafb;--panel-bg-muted:#eef2f6;--panel-border:#dde3ec;--panel-border-strong:#cbd5e1;--text-main:#18202f;--text-muted:#64748b;--text-subtle:#8a96a8;--accent:#1f7a68;--accent-strong:#135f52;--accent-soft:#e9f6f2;--accent-border:rgba(31,122,104,.28);--danger:#b42318;--link:#245ea8;--link-soft:#f3f7ff;--field-bg:#fff;--focus-ring:rgba(31,122,104,.18);--preview-bg:#eef3f6;--preview-stage-bg:#111;--preview-fallback-bg:hsla(0,0%,100%,.08);--preview-fallback-text:#e5e7eb;--scrollbar-thumb:#c6d1df;--skeleton-bg:#e7edf3;--skeleton-bg-accent:#d2e7df;--skeleton-shimmer:hsla(0,0%,100%,.72);--message-user-bg:#e7f4ef;--message-assistant-bg:#fff;--sidebar-bg:#f3f4f6;--sidebar-bg-soft:#fff;--sidebar-bg-hover:#e8ecf2;--sidebar-bg-active:#e0e6ee;--sidebar-border:#dde3ec;--sidebar-text:#172033;--sidebar-muted:#697586;--overlay-bg:rgba(15,23,42,.56);--shadow-elevated:0 24px 70px rgba(15,23,42,.22);--radius:8px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}:root[data-agent-theme=dark]{color-scheme:dark;--page-bg:#171717;--workspace-bg:#1f1f1f;--panel-bg:#242424;--panel-bg-soft:#2b2b2b;--panel-bg-muted:#303030;--panel-border:#3a3a3a;--panel-border-strong:#4a4a4a;--text-main:#f4f4f5;--text-muted:#b7bcc5;--text-subtle:#8f949e;--accent:#69c3ad;--accent-strong:#95ddca;--accent-soft:rgba(105,195,173,.14);--accent-border:rgba(105,195,173,.34);--danger:#ff8a80;--link:#8ab4f8;--link-soft:rgba(138,180,248,.12);--field-bg:#202020;--focus-ring:rgba(105,195,173,.22);--preview-bg:#303030;--preview-stage-bg:#111;--preview-fallback-bg:hsla(0,0%,100%,.08);--preview-fallback-text:#e5e7eb;--scrollbar-thumb:#555;--skeleton-bg:#343434;--skeleton-bg-accent:#26443c;--skeleton-shimmer:hsla(0,0%,100%,.16);--message-user-bg:rgba(105,195,173,.14);--message-assistant-bg:#262626;--sidebar-bg:#171717;--sidebar-bg-soft:#202020;--sidebar-bg-hover:#2b2b2b;--sidebar-bg-active:#343434;--sidebar-border:#303030;--sidebar-text:#f2f2f2;--sidebar-muted:#a8a8a8;--overlay-bg:rgba(0,0,0,.62);--shadow-elevated:0 24px 80px rgba(0,0,0,.42)}*{box-sizing:border-box}body{background:var(--page-bg);color:var(--text-main);margin:0;min-width:320px}button,textarea{font:inherit}button{cursor:pointer}.login-page{align-items:center;background:radial-gradient(circle at 20% 16%,rgba(31,122,104,.12),transparent 32%),radial-gradient(circle at 82% 78%,rgba(36,94,168,.1),transparent 34%),var(--page-bg);display:flex;justify-content:center;min-height:100vh;min-height:100dvh;padding:32px 20px;width:100%}.login-panel{background:#fffffff0;border:1px solid var(--panel-border);border-radius:var(--radius);box-shadow:0 22px 70px #0f172a1f;display:grid;gap:20px;padding:28px;width:min(100%,420px)}.login-copy{display:grid;gap:8px;text-align:center}.login-form-title,.login-kicker,.login-message,.login-title{margin:0}.login-kicker{color:var(--text-muted);font-size:13px;font-weight:700}.login-title{color:var(--text-main);font-size:28px;letter-spacing:0;line-height:1.2}.login-tabs{background:var(--panel-bg-soft);border:1px solid var(--panel-border);border-radius:var(--radius);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));overflow:hidden}.login-tab{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;border:0;color:var(--text-muted);min-height:42px}.login-tab-active{background:var(--accent);color:#fff}.login-form{display:grid;gap:14px}.login-form-title{color:var(--text-main);font-size:16px;line-height:1.3;text-align:center}.login-auth-switch{background:var(--panel-bg-soft);border:1px solid var(--panel-border);border-radius:var(--radius);display:grid;gap:4px;grid-template-columns:repeat(2,minmax(0,1fr));padding:4px}.login-auth-switch-button{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;border:0;border-radius:6px;color:var(--text-muted);font-weight:700;min-height:34px}.login-auth-switch-button-active{background:var(--panel-bg);box-shadow:0 1px 4px #0f172a14;color:var(--text-main)}.login-field{color:var(--text-muted);display:grid;font-size:13px;gap:7px}.login-field input{background:var(--field-bg);border:1px solid var(--panel-border-strong);border-radius:var(--radius);color:var(--text-main);min-height:46px;outline:none;padding:0 14px;width:100%}.login-field input:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--focus-ring)}.login-primary{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--accent);border:0;border-radius:var(--radius);color:#fff;font-weight:700;margin-top:4px;min-height:48px}.login-primary:disabled{cursor:default;opacity:.7}.login-message{color:var(--danger);font-size:13px;line-height:1.5;text-align:center}@media(max-width:520px){.login-panel{padding:22px}.login-title{font-size:24px}}