:root {
      --bg: white;
      --panel: white;
      --muted: gray;
      --text: #222222;
      --accent: #555555;
      --accent-2: #2c2c2c;
      --buttontext: #ffffff;
      --pink: #e99bc1;
    }
    * { box-sizing: border-box; }
    /*
    body {
      margin: 0; padding: 24px; font-family: system-ui, -apple-system, Segoe UI, Roboto, Noto Sans JP, sans-serif;
      background: radial-gradient(1200px 800px at 120% -10%, #1f2b55 0%, var(--bg) 60%);
      color: var(--text);
    }
      */
    h1 { font-size: 1.3rem; margin: 0 0 8px; letter-spacing: .02em; }
    p.lead { margin: 0 0 20px; color: var(--muted); }
    .grid {
      display: grid; gap: 16px; grid-template-columns: repeat(1, minmax(0, 1fr));
    }
    @media (min-width: 880px) {
      .grid { grid-template-columns: 1.2fr .8fr; }
    }
    .card {
      background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
      border: 1px solid rgba(255,255,255,.08);
      border-radius: 16px; padding: 18px 16px;
      box-shadow: 0 10px 24px rgba(0,0,0,.1), inset 0 1px 0 rgba(255,255,255,.06);
    }
    .row { display: grid; grid-template-columns: 210px 1fr; gap: 10px; align-items: center; margin: 8px 0; }
    label { color: #343642; font-weight: 550; }
    select, input[type="number"] {
      width: 100%; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--accent);
      background: #ffffff; color: var(--text); outline: none;
    }
    .hint { color: var(--muted); font-size: .9rem; margin-top: 8px; }
    .total {
      font-size: clamp(26px, 4vw, 40px);
      font-weight: 800; letter-spacing: .02em; margin: 8px 0 0;
      background: linear-gradient(90deg, var(--accent), var(--accent-2));
      -webkit-background-clip: text; background-clip: text; color: transparent;
    }
    .breakdown { width: 100%; border-collapse: collapse; margin-top: 8px; }
    .breakdown th, .breakdown td {
      padding: 10px 12px; border-bottom: 1px solid rgba(255,255,255,.08);
    }
    .breakdown th { text-align: left; color: var(--pink); font-weight: 600; }
    .btns { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
    button {
      appearance: none; border: 1px solid rgba(255,255,255,.12); color: var(--buttontext);
      background: var(--pink); padding: 10px 14px; border-radius: 12px; cursor: pointer; font-weight: 600;
    }
    button.primary { background: linear-gradient(90deg, var(--accent), var(--accent-2)); border: none; color: #0b0f24; }
    .pill { display: inline-block; font-size: .85rem; padding: 4px 10px; border-radius: 999px; background: rgba(255,255,255,.08); color: var(--muted); margin-left: 8px; }
    .custom { display: none; }
    footer { margin-top: 20px; color: var(--muted); font-size: .9rem; }