:root{color-scheme:light;--bg: #f4f6fa;--surface: #ffffff;--text: #0f172a;--muted: #475569;--border: #e2e8f0;--accent: #2563eb;--accent-muted: #1d4ed8;--danger: #b91c1c;--shadow: 0 10px 30px rgba(15, 23, 42, .08);--radius: 12px;--font: "Segoe UI", system-ui, -apple-system, sans-serif}[data-theme=dark]{color-scheme:dark;--bg: #0b1220;--surface: #111827;--text: #e5e7eb;--muted: #9ca3af;--border: #1f2937;--accent: #60a5fa;--accent-muted: #3b82f6;--danger: #f87171;--shadow: 0 10px 34px rgba(0, 0, 0, .45)}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.55}#root{min-height:100vh}a{color:var(--accent)}.app-shell{max-width:1100px;margin:0 auto;padding:1.75rem clamp(1rem,3vw,2rem) 4rem}.hero{display:flex;flex-wrap:wrap;gap:1rem 1.5rem;align-items:flex-start;justify-content:space-between;margin-bottom:1.75rem}.hero h1{margin:0;font-size:clamp(1.45rem,2.8vw,2rem);letter-spacing:-.02em}.lead{margin:.45rem 0 0;color:var(--muted);max-width:640px}.toolbar{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}button,select,input[type=text],input[type=password]{font:inherit}.btn{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:10px;padding:.5rem .9rem;cursor:pointer;box-shadow:var(--shadow)}.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-muted));color:#fff;border-color:transparent}.btn-ghost{box-shadow:none;background:transparent}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem 1.25rem;margin-bottom:1rem;box-shadow:var(--shadow)}.panel h2{margin:0 0 .35rem;font-size:1.05rem}.panel>p.hint{margin:0 0 1rem;color:var(--muted);font-size:.92rem}.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:.75rem 1rem}label.field{display:flex;flex-direction:column;gap:.28rem;font-size:.9rem}label.field span{color:var(--muted);font-size:.82rem}input[type=text],input[type=password],select{border:1px solid var(--border);border-radius:8px;padding:.45rem .55rem;background:var(--bg);color:var(--text)}.switch-row{display:flex;gap:.65rem;align-items:flex-start;padding:.55rem 0;border-bottom:1px solid var(--border)}.switch-row:last-child{border-bottom:none}.switch-row input[type=checkbox]{margin-top:.25rem;width:1.05rem;height:1.05rem;accent-color:var(--accent)}.switch-body{flex:1}.switch-title{font-weight:600}.switch-desc{color:var(--muted);font-size:.88rem}details.help{margin-top:.35rem;font-size:.86rem;color:var(--muted)}details.help summary{cursor:pointer;color:var(--accent);list-style-position:outside}.example{margin:.35rem 0 0;padding:.45rem .55rem;border-radius:8px;border:1px dashed var(--border);background:var(--bg);font-size:.82rem;white-space:pre-wrap;word-break:break-word}.warnings{border-left:3px solid var(--danger);padding:.5rem .85rem;background:#b91c1c14;margin:1rem 0;border-radius:8px;color:var(--text)}.warnings ul{margin:.35rem 0 0;padding-left:1.1rem}.preview{width:100%;min-height:260px;font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:.78rem;border-radius:10px;border:1px solid var(--border);padding:.75rem;background:var(--bg);color:var(--text);resize:vertical}.footer-note{margin-top:2rem;font-size:.85rem;color:var(--muted)}