:root{--bg-page:#f7f8fa;--bg-surface:#fff;--bg-accent-soft:#eef2ff;--bg-success-soft:#ecfdf5;--bg-danger-soft:#fef2f2;--border:#e5e7eb;--border-strong:#d1d5db;--text-primary:#111827;--text-secondary:#6b7280;--text-muted:#9ca3af;--accent:#2563eb;--accent-hover:#1d4ed8;--success:#059669;--danger:#dc2626;--radius-lg:8px;--radius-sm:6px;--font-sans:system-ui, -apple-system, "Segoe UI", sans-serif;--font-mono:ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace}*{box-sizing:border-box}body{font-family:var(--font-sans);color:var(--text-primary);background:var(--bg-page);margin:0}h1,h2,h3{font-weight:500}.card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1rem 1.25rem}.btn{border-radius:var(--radius-sm);background:var(--accent);color:#fff;cursor:pointer;border:none;padding:.6rem 1.2rem;font-size:.95rem}.btn:hover{background:var(--accent-hover)}.btn:disabled{opacity:.6;cursor:default}.btn-secondary{border:1px solid var(--border-strong);color:var(--text-primary);background:0 0;padding:.4rem .9rem;font-size:.85rem}.btn-secondary:hover{background:var(--bg-page)}.hint{color:var(--text-secondary);max-width:60ch;font-size:.9rem}.mono{font-family:var(--font-mono)}.status-ok{color:var(--success)}.status-error{color:var(--danger)}