:root{
      --bg: #0b1220;
      --card: rgba(255,255,255,.08);
      --card2: rgba(255,255,255,.06);
      --border: rgba(255,255,255,.14);
      --text: rgba(255,255,255,.92);
      --muted: rgba(255,255,255,.70);
      --accent: #79a6ff;
      --accent2:#6ee7b7;
      --danger:#fb7185;
      --shadow: 0 18px 50px rgba(0,0,0,.35);
      --radius: 18px;
    }

    *{box-sizing:border-box}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", "Segoe UI", Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 700px at 10% 0%, rgba(121,166,255,.25), transparent 55%),
        radial-gradient(900px 500px at 90% 10%, rgba(110,231,183,.18), transparent 55%),
        radial-gradient(900px 900px at 50% 120%, rgba(255,255,255,.06), transparent 55%),
        var(--bg);
      line-height:1.75;
    }

    .wrap{
      max-width: 920px;
      margin: 0 auto;
      padding: 40px 16px 70px;
    }

    header.hero{
      position: relative;
      padding: 28px 22px;
      border-radius: calc(var(--radius) + 6px);
      background: linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.05));
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      overflow:hidden;
    }
    header.hero::before{
      content:"";
      position:absolute; inset:-2px;
      background: radial-gradient(700px 220px at 10% 0%, rgba(121,166,255,.26), transparent 60%),
                  radial-gradient(700px 220px at 90% 10%, rgba(110,231,183,.18), transparent 60%);
      pointer-events:none;
      filter: blur(0px);
    }
    .hero-inner{ position:relative; }

    .badge{
      display:inline-flex;
      align-items:center;
      gap:.5rem;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.14);
      color: var(--muted);
      font-size: 12px;
      letter-spacing: .02em;
      margin-bottom: 10px;
    }
    .dot{
      width:8px; height:8px; border-radius:50%;
      background: linear-gradient(135deg, var(--accent), var(--accent2));
      box-shadow: 0 0 0 4px rgba(121,166,255,.12);
    }
    h1{
      margin: 0 0 6px;
      font-size: clamp(20px, 2.5vw, 28px);
      letter-spacing: .02em;
    }
    .lead{
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .grid{
      display:grid;
      grid-template-columns: 1fr;
      gap: 14px;
      margin-top: 16px;
    }

    @media (min-width: 820px){
      .grid{ grid-template-columns: 1fr 1fr; }
      .span-2{ grid-column: span 2; }
    }

    section.card{
      border-radius: var(--radius);
      background: linear-gradient(180deg, var(--card), var(--card2));
      border: 1px solid var(--border);
      box-shadow: 0 12px 30px rgba(0,0,0,.22);
      padding: 18px 18px 16px;
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
    }

    .section-title{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap: 12px;
      margin-bottom: 10px;
    }
    h2{
      margin:0;
      font-size: 16px;
      letter-spacing: .02em;
      display:flex;
      align-items:center;
      gap: 10px;
    }
    .icon{
      width: 34px; height: 34px;
      border-radius: 12px;
      display:grid;
      place-items:center;
      background: rgba(255,255,255,.10);
      border: 1px solid rgba(255,255,255,.14);
    }
    .pill{
      font-size: 12px;
      color: var(--muted);
      border: 1px solid rgba(255,255,255,.14);
      background: rgba(255,255,255,.06);
      padding: 6px 10px;
      border-radius: 999px;
      white-space: nowrap;
    }

    p{
      margin: 0 0 10px;
      color: var(--text);
    }
    .muted{ color: var(--muted); }

    .callout{
      margin-top: 12px;
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(121,166,255,.22);
      background: rgba(121,166,255,.10);
      color: var(--muted);
      font-size: 13px;
    }
    .callout strong{ color: var(--text); }

    .list{
      margin: 10px 0 0;
      padding-left: 18px;
      color: var(--muted);
    }
    .list li{
      margin: 8px 0;
    }

    .danger{
      border: 1px solid rgba(251,113,133,.26);
      background: rgba(251,113,133,.08);
    }
    .danger .tag{
      color: rgba(255,255,255,.86);
      background: rgba(251,113,133,.14);
      border: 1px solid rgba(251,113,133,.28);
    }

    footer{
      margin-top: 18px;
      color: rgba(255,255,255,.55);
      font-size: 12px;
      text-align:center;
    }

    /* small accessibility niceties */
    a{ color: var(--accent); text-decoration: none; }
    a:hover{ text-decoration: underline; }