*{box-sizing:border-box}

    html,body{
      margin:0;
      min-height:100%;
      font-family:Manrope,"Segoe UI",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at bottom left, rgba(178,135,215,.16), transparent 28%),
        linear-gradient(135deg, var(--bg-2) 0%, var(--bg-1) 55%, #2b1b3b 100%);
    }

    body{
      padding:28px;
    }

    .app{
      max-width:1400px;
      margin:0 auto;
    }

    .hero{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
      flex-wrap:wrap;
    }

    .brand{
      display:flex;
      align-items:center;
      gap:18px;
    }

    .chip{
      width:78px;
      height:78px;
      border-radius:50%;
      position:relative;
      background:
        conic-gradient(
          var(--gold) 0deg 35deg,
          #2b1b3b 35deg 55deg,
          var(--gold) 55deg 90deg,
          #2b1b3b 90deg 125deg,
          var(--gold) 125deg 160deg,
          #2b1b3b 160deg 180deg,
          var(--gold) 180deg 215deg,
          #2b1b3b 215deg 235deg,
          var(--gold) 235deg 270deg,
          #2b1b3b 270deg 305deg,
          var(--gold) 305deg 340deg,
          #2b1b3b 340deg 360deg
        );
      box-shadow: inset 0 0 0 8px #2b1b3b, 0 10px 30px rgba(178,135,215,.16);
      flex:0 0 auto;
    }
    .chip::before{
      content:"";
      position:absolute;
      inset:12px;
      border-radius:50%;
      background:#2b1b3b;
      box-shadow: inset 0 0 0 4px #2b1b3b;
    }
    .chip::after{
      content:"✓";
      position:absolute;
      inset:0;
      display:grid;
      place-items:center;
      color:#2b1b3b;
      font-weight:900;
      font-size:34px;
      z-index:2;
    }

    .brand-copy h1{
      margin:0;
      font-size:44px;
      line-height:0.95;
      letter-spacing:-0.03em;
      font-weight:800;
    }
    .brand-copy h1 span{
      display:block;
    }
    .brand-copy p{
      margin:10px 0 0;
      color:var(--muted);
      font-size:15px;
      max-width:560px;
      line-height:1.5;
    }

    .hero-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      align-items:center;
    }

    button{
      border:0;
      cursor:pointer;
      border-radius:999px;
      padding:12px 18px;
      font-size:14px;
      font-weight:700;
      transition:transform .15s ease, opacity .15s ease, box-shadow .2s ease;
    }
    button:hover{ transform:translateY(-1px); }
    button:active{ transform:translateY(0); }

    .btn-primary{
      background:linear-gradient(135deg, var(--gold), var(--gold-2));
      color:#2b1b3b;
      box-shadow:0 10px 24px rgba(178,135,215,.16);
    }
    .btn-secondary{
      background:rgba(178,135,215,.16);
      color:var(--text);
      border:1px solid var(--line);
    }

    .grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:20px;
      margin-bottom:24px;
    }

    .card{
      background:linear-gradient(180deg, rgba(178,135,215,.16), rgba(178,135,215,.16));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      overflow:hidden;
      backdrop-filter: blur(8px);
    }

    .card-header{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:18px 18px 0 18px;
    }
    .card-header h2{
      margin:0;
      font-size:20px;
      font-weight:800;
      letter-spacing:-0.02em;
    }
    .badge{
      padding:8px 12px;
      border-radius:999px;
      background:rgba(178,135,215,.16);
      border:1px solid rgba(178,135,215,.16);
      color:#2b1b3b;
      font-size:12px;
      font-weight:700;
    }

    .card-body{
      padding:18px;
      display:grid;
      gap:14px;
    }

    .field{
      display:grid;
      gap:8px;
    }

    .field label{
      font-size:13px;
      color:var(--muted);
      font-weight:700;
      text-transform:uppercase;
      letter-spacing:.04em;
    }

    .input-wrap{
      position:relative;
    }

    .prefix, .suffix{
      position:absolute;
      top:50%;
      transform:translateY(-50%);
      color:var(--muted);
      font-size:14px;
      pointer-events:none;
      z-index:2;
    }
    .prefix{ left:14px; }
    .suffix{ right:14px; }

    input[type="number"]{
      width:100%;
      background:rgba(178,135,215,.16);
      color:var(--text);
      border:1px solid var(--line);
      border-radius:16px;
      padding:14px 16px;
      font-size:17px;
      font-weight:700;
      outline:none;
    }
    input.with-prefix{ padding-left:34px; }
    input.with-suffix{ padding-right:44px; }

    input:focus{
      border-color:rgba(178,135,215,.16);
      box-shadow:0 0 0 4px rgba(178,135,215,.16);
    }

    .results{
      margin-top:2px;
      border-top:1px solid var(--line);
      padding-top:14px;
      display:grid;
      gap:10px;
    }

    .result{
      background:rgba(178,135,215,.16);
      border:1px solid var(--line);
      border-radius:16px;
      padding:14px 15px;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
    }

    .result.highlight{
      background:linear-gradient(180deg, var(--green-soft), rgba(178,135,215,.16));
      border-color:rgba(178,135,215,.16);
    }

    .result .label{
      color:#2b1b3b;
      font-size:14px;
      font-weight:700;
    }
    .result .value{
      font-size:22px;
      font-weight:900;
      letter-spacing:-0.02em;
      text-align:right;
    }

    .footer-panels{
      display:grid;
      grid-template-columns:1.35fr .85fr;
      gap:20px;
    }

    .panel{
      background:linear-gradient(180deg, rgba(178,135,215,.16), rgba(178,135,215,.16));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      padding:22px;
    }

    .panel h3{
      margin:0 0 10px 0;
      font-size:22px;
      letter-spacing:-0.02em;
    }

    .panel p{
      margin:8px 0;
      color:#2b1b3b;
      line-height:1.6;
    }

    .panel .muted{
      color:var(--muted);
    }

    code{
      display:inline-block;
      padding:3px 8px;
      border-radius:10px;
      background:rgba(178,135,215,.16);
      border:1px solid var(--line);
      color:#2b1b3b;
      font-family:Manrope,"Segoe UI",sans-serif;
      font-size:0.95em;
    }

    .summary-grid{
      display:grid;
      gap:12px;
    }

    .summary-item{
      padding:14px 16px;
      border-radius:16px;
      border:1px solid var(--line);
      background:rgba(178,135,215,.16);
    }

    .summary-item strong{
      display:block;
      font-size:13px;
      color:var(--muted);
      text-transform:uppercase;
      margin-bottom:6px;
      letter-spacing:.04em;
    }

    .summary-item span{
      font-size:24px;
      font-weight:900;
      letter-spacing:-0.02em;
    }

    .error{
      color:#2b1b3b;
      font-size:13px;
      margin-top:6px;
      display:none;
    }

    .top-note{
      margin:0 0 18px;
      color:var(--muted);
      font-size:14px;
    }

    @media (max-width: 1100px){
      .grid{ grid-template-columns:1fr; }
      .footer-panels{ grid-template-columns:1fr; }
      .brand-copy h1{ font-size:38px; }
    }

    @media (max-width: 640px){
      body{ padding:16px; }
      .brand{ align-items:flex-start; }
      .chip{ width:64px; height:64px; }
      .brand-copy h1{ font-size:33px; }
      .card-header{ padding:16px 16px 0 16px; }
      .card-body{ padding:16px; }
      .panel{ padding:18px; }
    }