:root{--bg:#f6f6f3;--bg-elev-1:#fff;--bg-sunken:#efefea;--ink:#14161a;--ink-2:#3a3d44;--ink-3:#6b6f78;--ink-4:#9aa0aa;--line:#0f111514;--line-strong:#0f111524;--accent:#1e8a55;--accent-soft:#e8f5ee;--c-input:#3b6fd4;--c-output:#1b8c6e;--c-cache:#c9b87a;--c-opus:#9b4fd4;--c-sonnet:#3b6fd4;--c-haiku:#29a8b8;--c-codex:#d4613b;--c-local:#5555c4;--c-warn:#d49320;--c-danger:#d43b3b;--shadow-1:0 1px 0 #0f11150a, 0 1px 2px #0f11150a;--shadow-2:0 1px 0 #0f11150a, 0 8px 24px -12px #0f11152e;--r-1:6px;--r-2:10px;--r-3:14px;--r-4:20px;--pad-card:20px;--gap-card:16px}[data-theme=dark]{--bg:#0e1014;--bg-elev-1:#15181e;--bg-sunken:#101319;--ink:#ecedef;--ink-2:#d3d6dc;--ink-3:#9aa0aa;--ink-4:#707782;--line:#ffffff14;--line-strong:#ffffff24;--accent:#42c889;--accent-soft:#42c88924;--shadow-1:0 1px 0 #0006, 0 1px 2px #0000004d;--shadow-2:0 1px 0 #0006, 0 8px 24px -10px 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var(--line);border-radius:var(--r-3);box-shadow:var(--shadow-1)}.preview-tile{padding:18px}.preview-label,.kpi-label{color:var(--ink-3);letter-spacing:.06em;text-transform:uppercase;font-size:11px;font-weight:700}.preview-value,.kpi-value{letter-spacing:0;margin-top:6px;font-size:34px;font-weight:700}.auth-form{gap:14px;margin-top:24px;display:grid}.auth-form+.auth-form{margin-top:14px}.auth-form label{color:var(--ink-2);gap:8px;font-size:13px;font-weight:700;display:grid}.auth-form input{border:1px solid var(--line-strong);border-radius:var(--r-2);background:var(--bg);width:100%;height:42px;color:var(--ink);padding:0 12px}.oauth-button{width:100%}.auth-divider{color:var(--ink-3);grid-template-columns:1fr auto 1fr;align-items:center;gap:10px;font-size:12px;font-weight:700;display:grid}.auth-divider span{background:var(--line);height:1px}.form-message,.auth-switch,.demo-link{color:var(--ink-3);font-size:13px;line-height:1.5}.auth-switch 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