:root{--bg:#f4f7fb;--panel:#fff;--text:#172033;--muted:#718096;--line:#e6edf5;--brand:#2563eb;--brand2:#7c3aed;--dark:#0f172a;--shadow:0 20px 50px rgba(15,23,42,.08)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Pretendard,"Noto Sans KR",sans-serif;background:var(--bg);color:var(--text)}.app-shell{display:flex;min-height:100vh}.sidebar{width:280px;background:var(--dark);color:#fff;padding:26px 20px;display:flex;flex-direction:column;gap:26px}.brand{display:flex;gap:12px;align-items:center}.logo{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:grid;place-items:center;font-weight:900}.brand span{display:block;color:#a9b4c6;font-size:13px;margin-top:3px}nav{display:flex;flex-direction:column;gap:8px}nav a{padding:13px 14px;border-radius:14px;color:#cbd5e1;text-decoration:none}nav a.active,nav a:hover{background:rgba(255,255,255,.09);color:#fff}.notice{margin-top:auto;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:16px}.notice p{margin:8px 0 0;color:#cbd5e1;font-size:13px;line-height:1.5}.main{flex:1;padding:34px;overflow:auto}.topbar{display:flex;justify-content:space-between;align-items:center;gap:20px}.eyebrow{margin:0 0 6px;color:var(--brand);font-size:12px;font-weight:800;letter-spacing:.16em}.topbar h1{margin:0;font-size:32px}.hero{margin:28px 0;display:flex;justify-content:space-between;gap:22px;align-items:center;background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;border-radius:28px;padding:28px;box-shadow:var(--shadow)}.hero h2{margin:0 0 8px;font-size:28px}.hero p{margin:0;color:#dbeafe}.hero-card{min-width:230px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.25);border-radius:22px;padding:20px}.hero-card span{font-size:12px;letter-spacing:.15em;color:#dbeafe}.hero-card strong{display:block;font-size:22px;margin:8px 0}.hero-card small{color:#e0e7ff}.workspace{display:grid;grid-template-columns:420px 1fr;gap:24px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:22px}.panel-title{margin-bottom:18px}.panel-title h3{margin:0;font-size:20px}.panel-title p{margin:6px 0 0;color:var(--muted);font-size:14px}.row{display:flex;justify-content:space-between;gap:14px;align-items:flex-start}.grid.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}label{display:block;font-weight:700;font-size:14px;margin-bottom:14px}input,select,textarea{width:100%;margin-top:8px;border:1px solid var(--line);border-radius:14px;padding:13px 14px;font:inherit;background:#fbfdff;color:var(--text);outline:none}textarea{min-height:96px;resize:vertical}input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(37,99,235,.12)}button{border:0;border-radius:14px;padding:12px 16px;font-weight:800;cursor:pointer}.primary{width:100%;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-size:16px}.primary:disabled{opacity:.6;cursor:not-allowed}.ghost{background:#eef4ff;color:#1d4ed8}.actions{display:flex;gap:8px}.status{margin:14px 0 0;color:var(--muted);font-size:14px}.result{min-height:620px;white-space:pre-wrap;word-break:break-word;background:#0b1220;color:#e5e7eb;border-radius:18px;padding:20px;line-height:1.75;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;overflow:auto}@media(max-width:1000px){.app-shell{display:block}.sidebar{width:auto;min-height:auto}.workspace{grid-template-columns:1fr}.hero{display:block}.hero-card{margin-top:18px}.main{padding:22px}}@media(max-width:640px){.grid.two{grid-template-columns:1fr}.topbar,.row{display:block}.actions{margin-top:12px}.topbar h1{font-size:25px}}