*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Arial,sans-serif;background:#0b0b10;color:#eaeaf0}
.container{max-width:980px;margin:0 auto;padding:18px}
.header{display:flex;justify-content:space-between;align-items:center}
.brand{font-weight:700}
.badge{background:#1f2937;color:#f3f4f6;padding:2px 6px;border-radius:6px;font-size:12px}
.user-bar{display:flex;gap:10px;align-items:center}
.small{font-size:12px}.muted{color:#94a3b8}
.grid.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.card{background:#11131a;border:1px solid #1f2430;border-radius:12px;padding:16px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
input,textarea{width:100%;background:#0f1220;color:#f8fafc;border:1px solid #2a3140;border-radius:8px;padding:10px}
textarea.mono,pre.mono{font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', monospace}
.btn{background:#1f2937;border:1px solid #334155;color:#e2e8f0;border-radius:8px;padding:8px 12px;cursor:pointer}
.btn:hover{background:#273244}
.btn.primary{background:#2563eb;border-color:#2563eb}
.btn.primary:hover{background:#1d4ed8}
.btn.outline{background:transparent;border-color:#475569}
.result h3{margin-bottom:6px;margin-top:18px}
ul{padding-left:18px}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.55);display:none;align-items:center;justify-content:center}
.modal.open{display:flex}
.modal-content{background:#0f1220;border:1px solid #2a3140;border-radius:12px;padding:20px;max-width:420px;width:96%}
label{display:block;margin-top:8px;margin-bottom:4px;color:#cbd5e1}