:root{--brand-primary:#2563eb;--brand-accent:#7c3aed;--brand-radius:10px}html[data-theme="dark"]{color-scheme:dark;--surface-page:#07111f;--surface-card:#0f1b2d;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--border-muted:#334155}html[data-theme="light"]{color-scheme:light}html[data-theme="high-contrast"]{--surface-page:#000;--surface-card:#000;--text-primary:#fff;--text-secondary:#fff;--border-muted:#fff;--brand-primary:#ff0;--brand-accent:#0ff}body{font-family:var(--tenant-font,system-ui,sans-serif)}button,.btn{border-radius:var(--brand-radius)}.tn90-hero{display:flex;justify-content:space-between;align-items:center}.tn90-swatch{display:flex;gap:10px}.tn90-swatch i{width:48px;height:48px;border-radius:50%;border:3px solid var(--surface-card)}.tn90-grid{display:grid;grid-template-columns:minmax(280px,.7fr) 1.3fr;gap:18px}.tn90-preview-shell{display:grid;grid-template-columns:150px 1fr;min-height:240px;border:1px solid var(--border-muted);border-radius:18px;overflow:hidden}.tn90-preview-shell aside{background:var(--brand-primary);color:#fff;padding:24px}.tn90-preview-shell main{padding:24px;background:var(--surface-card)}.tn90-preview-shell button{background:var(--brand-primary)}.tn90-preview-cards{display:flex;gap:12px;margin:20px 0}.tn90-preview-cards b{padding:18px;border:1px solid var(--border-muted);border-radius:var(--brand-radius);font-size:24px}.tn90-preview-cards small{display:block;font-size:12px;color:var(--text-secondary)}@media(max-width:760px){.tn90-grid{grid-template-columns:1fr}.tn90-preview-shell{grid-template-columns:90px 1fr}}