:root{--header-h:64px}.bh-platform-theme,:root{--hdr-bg:#ffffff;--hdr-fg:#0f172a;--hdr-border:rgba(15,23,42,0.08);--frame-border:#e5e7eb;--surface-bg:#ffffff;--surface-fg:#0f172a;--card-bg:#ffffff;--card-border:#e5e7eb;--card-shadow:0 6px 18px rgba(15,23,42,0.06);--brand:#2563eb;--brand-600:#1d4ed8;--brand-ring:rgba(37,99,235,0.18);--accent:var(--brand);--accent-fg:#ffffff;--focus-ring:var(--brand-ring)}@font-face{font-family:Ethna;src:url(/fonts/ethna/font.woff2) format("woff2"),url(/fonts/ethna/font.woff) format("woff");font-weight:400;font-style:normal;font-display:swap}