:root{
      --bg: #0b1020;
      --card: rgba(255,255,255,.06);
      --card-2: rgba(255,255,255,.09);
      --text: #e9ecf1;
      --muted: rgba(233,236,241,.75);
      --stroke: rgba(233,236,241,.16);
      --focus: rgba(120, 180, 255, .35);
      --radius: 16px;
      --shadow: 0 18px 60px rgba(0,0,0,.35);
      --space: 16px;
      --space-lg: 22px;
      --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
      --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
    }

    *{ box-sizing: border-box; }

    body{
      margin: 0;
      font-family: var(--sans);
      color: var(--text);
      background:
        radial-gradient(900px 550px at 10% 10%, rgba(80,140,255,.16), transparent 55%),
        radial-gradient(700px 500px at 90% 20%, rgba(255,120,200,.12), transparent 50%),
        radial-gradient(700px 500px at 60% 90%, rgba(90,255,190,.10), transparent 50%),
        var(--bg);
      min-height: 100vh;
      display: grid;
      place-items: center;
      padding: 28px 16px;
    }

    .wrap{
      width: min(980px, 100%);
      display: grid;
      gap: 18px;
    }

    header{
      display: grid;
      gap: 8px;
      padding: 6px 2px;
    }

    h1{
      margin: 0;
      font-size: clamp(20px, 3.4vw, 30px);
      letter-spacing: -0.02em;
    }

    p{
      margin: 0;
      color: var(--muted);
      line-height: 1.45;
      font-size: 14px;
      max-width: 70ch;
    }

    .grid{
      display: grid;
      grid-template-columns: 1fr;
      gap: 16px;
    }

    @media (min-width: 860px){
      .grid{
        grid-template-columns: 360px 1fr;
        align-items: start;
      }
    }

    .card{
      background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.05));
      border: 1px solid var(--stroke);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .card__head{
      padding: 18px 18px 14px;
      border: none;
      border-bottom: 1px solid var(--stroke);
      background: rgba(0,0,0,.10);
    }

    .card__head h2{
      margin: 0;
      font-size: 15px;
      letter-spacing: .02em;
      text-transform: uppercase;
      color: rgba(233,236,241,.9);
    }
    .card__body{
      padding: 18px;
      display: grid;
      gap: 14px;
    }

    label{
      display: grid;
      gap: 6px;
      font-size: 13px;
      color: var(--muted);
    }

    input{
      width: 100%;
      border-radius: 12px;
      border: 1px solid var(--stroke);
      background: rgba(0,0,0,.16);
      color: var(--text);
      padding: 11px 12px;
      outline: none;
      font-size: 14px;
    }

    input::placeholder{ color: rgba(233,236,241,.38); }

    input:focus{
      border-color: rgba(120,180,255,.45);
      box-shadow: 0 0 0 4px var(--focus);
    }

    .row{
      display: grid;
      gap: 12px;
      grid-template-columns: 1fr;
    }

    @media (min-width: 500px){
      .row{ grid-template-columns: 1fr 1fr; }
    }

    .actions{
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: 4px;
    }

    button{
      border: 1px solid var(--stroke);
      background: rgba(255,255,255,.10);
      color: var(--text);
      padding: 10px 14px;
      border-radius: 12px;
      cursor: pointer;
      font-weight: 600;
      letter-spacing: .01em;
      transition: transform .05s ease, background .15s ease, border-color .15s ease;
    }

    button:hover{
      background: rgba(255,255,255,.14);
      border-color: rgba(233,236,241,.28);
    }

    button:active{ transform: translateY(1px); }

    .hint{
      font-size: 12px;
      color: rgba(233,236,241,.68);
      line-height: 1.45;
      padding: 12px 12px;
      border-radius: 12px;
      border: 1px dashed rgba(233,236,241,.22);
      background: rgba(0,0,0,.10);
    }

    .result{
      padding: 0;
    }

    .result__body{
      padding: 18px;
      display: grid;
      gap: 12px;
    }

    .output{
      min-height: 260px;
      border-radius: 14px;
      border: 1px solid var(--stroke);
      background: rgba(0,0,0,.18);
      padding: 14px;
      font-family: var(--mono);
      font-size: 13px;
      line-height: 1.55;
      white-space: pre-wrap;
      word-break: break-word;
    }

    .output__title{
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 8px;
    }

    .tag{
      font-size: 11px;
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid rgba(233,236,241,.22);
      background: rgba(255,255,255,.08);
      color: rgba(233,236,241,.85);
      font-family: var(--mono);
    }

    footer{
      color: rgba(233,236,241,.55);
      font-size: 12px;
      padding: 4px 2px 0;
    }