:root{--brand: #0f172a;--brand-hover: #1f2937;--brand-contrast: #ffffff;--accent: #4f46e5;--accent-hover: #4338ca;--surface: #ffffff;--surface-2: #f8fafc;--border: #e5e7eb;--text: #111827;--muted: #6b7280}.bg-surface{background-color:var(--surface)}.bg-surface-2{background-color:var(--surface-2)}.bg-brand{background-color:var(--brand)}.text-brand{color:var(--brand)}.text-accent{color:var(--accent)}.text-brand-contrast{color:var(--brand-contrast)}.text-text{color:var(--text)}.text-muted{color:var(--muted)}.border-default{border-color:var(--border)}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:.75rem;font-weight:700}.btn-lg{padding:1rem 2rem;font-size:1.125rem;line-height:1.75rem}.btn-md{padding:.5rem 1.25rem;font-size:1rem;line-height:1.5rem}.btn-primary{background-color:var(--accent);color:#fff;box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d}.btn-primary:hover{background-color:var(--accent-hover)}.btn-neutral{background-color:var(--brand);color:var(--brand-contrast)}.btn-neutral:hover{background-color:var(--brand-hover)}.btn-contrast{background-color:var(--brand-contrast);color:var(--brand);box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d}.btn-contrast:hover{filter:brightness(.97)}.card{background-color:var(--surface);border:1px solid var(--border);border-radius:1rem}