*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',sans-serif;background:#0b0f14;color:#e6edf3;display:flex;height:100vh}
.sidebar{width:300px;background:#0d1117;border-right:1px solid #1f2937;display:flex;flex-direction:column;padding:20px 16px;gap:12px}
.brand{font-weight:700;font-size:20px;letter-spacing:.2px}.brand span{color:#7dd3fc}
nav{display:flex;flex-direction:column;gap:8px}.nav-btn{appearance:none;border:1px solid #1f2937;background:#111827;color:#cbd5e1;padding:10px 12px;border-radius:10px;text-align:left;cursor:pointer}.nav-btn.active{border-color:#7dd3fc;color:#e6edf3}
#app{flex:1;overflow:auto;padding:24px}
.panel{background:#0d1117;border:1px solid #1f2937;border-radius:14px;padding:16px;margin-bottom:16px}
.panel h2{margin:0 0 12px 0;font-size:18px}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
input,select,textarea{background:#0b1220;border:1px solid #1f2937;border-radius:10px;color:#e6edf3;padding:10px;min-width:200px}
button.cta,.cta{background:#0ea5e9;border:none;color:#001018;padding:10px 14px;border-radius:10px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-block}
.code{font-family:ui-monospace,Menlo,Consolas,monospace;background:#0a0f16;border:1px solid #1f2937;border-radius:10px;padding:10px;white-space:pre-wrap}
.small{font-size:12px;color:#9aa7b1}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;border:1px solid #334155;color:#93c5fd;background:#0b1220;margin-right:6px}
.card{border:1px solid #1f2937;background:#0b1320;border-radius:12px;padding:12px;margin-bottom:10px}
hr.sep{border:none;border-top:1px solid #1f2937;margin:14px 0}
progress{height:20px;border-radius:10px;overflow:hidden}
progress::-webkit-progress-bar{background:#1f2937}
progress::-webkit-progress-value{background:#0ea5e9}
progress::-moz-progress-bar{background:#0ea5e9}