:root {
      color-scheme: dark;
      --bg: #00040a;
      --panel: rgba(3, 13, 25, 0.82);
      --panel-strong: rgba(4, 17, 31, 0.95);
      --line: rgba(145, 196, 255, 0.22);
      --line-bright: rgba(76, 255, 104, 0.34);
      --blue: #59b0ff;
      --green: #4cff68;
      --white: #f5f7fb;
      --muted: rgba(210, 221, 236, 0.72);
      --dim: rgba(210, 221, 236, 0.46);
    }

    * { box-sizing: border-box; }

    html { min-height: 100%; }

    body {
      min-height: 100%;
      margin: 0;
      color: var(--white);
      background:
        radial-gradient(circle at 18% 18%, rgba(20, 119, 255, 0.18), transparent 27rem),
        radial-gradient(circle at 76% 14%, rgba(76, 255, 104, 0.10), transparent 24rem),
        radial-gradient(circle at 50% 86%, rgba(89, 176, 255, 0.09), transparent 30rem),
        linear-gradient(180deg, #000 0%, #010611 48%, #020b15 100%);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      opacity: 0.22;
      background:
        linear-gradient(rgba(145, 196, 255, 0.045) 1px, transparent 1px) 0 0 / 100% 3px,
        repeating-linear-gradient(90deg, rgba(145, 196, 255, 0.04) 0 1px, transparent 1px 5.5rem);
      mask-image: linear-gradient(180deg, #000, transparent 78%);
    }

    a { color: inherit; }

    .return {
      position: fixed;
      top: calc(env(safe-area-inset-top, 0px) + 1rem);
      right: calc(env(safe-area-inset-right, 0px) + 1rem);
      z-index: 30;
      padding: 0.62rem 0.85rem;
      border: 1px solid rgba(145, 196, 255, 0.20);
      border-radius: 999px;
      color: rgba(245, 247, 251, 0.82);
      background: rgba(2, 8, 16, 0.62);
      backdrop-filter: blur(14px);
      font-size: 0.66rem;
      font-weight: 800;
      letter-spacing: 0.16em;
      text-decoration: none;
      text-transform: uppercase;
      box-shadow: 0 0 1.15rem rgba(20, 119, 255, 0.10);
    }

    .return:hover,
    .return:focus-visible {
      border-color: rgba(76, 255, 104, 0.44);
      color: #fff;
      outline: none;
    }

    .referral-shell {
      position: relative;
      z-index: 2;
      width: min(70rem, calc(100% - 2rem));
      margin-inline: auto;
      padding:
        calc(env(safe-area-inset-top, 0px) + clamp(5.25rem, 9vw, 7.5rem))
        0
        calc(env(safe-area-inset-bottom, 0px) + 2rem);
    }

    .hero {
      display: grid;
      gap: 1rem;
      margin-bottom: clamp(1.4rem, 4vw, 2.8rem);
    }

    .eyebrow {
      margin: 0;
      color: var(--green);
      font-size: 0.72rem;
      font-weight: 850;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      text-shadow: 0 0 0.9rem rgba(76, 255, 104, 0.20);
    }

    h1 {
      max-width: 13ch;
      margin: 0;
      font-size: clamp(3.1rem, 10.5vw, 7.2rem);
      line-height: 0.88;
      letter-spacing: -0.075em;
      text-wrap: balance;
      text-shadow: 0 0 1.4rem rgba(20, 119, 255, 0.16);
    }

    .lede {
      max-width: 46rem;
      margin: 0;
      color: var(--muted);
      font-size: clamp(1rem, 2.2vw, 1.2rem);
      line-height: 1.65;
    }

    .referral-card {
      position: relative;
      display: grid;
      grid-template-columns: minmax(15rem, 0.82fr) minmax(17rem, 1fr);
      gap: clamp(1.2rem, 4vw, 2.25rem);
      align-items: center;
      padding: clamp(1rem, 3.2vw, 2rem);
      border: 1px solid var(--line);
      border-radius: 1.55rem;
      background:
        radial-gradient(circle at 14% 18%, rgba(76, 255, 104, 0.10), transparent 13rem),
        radial-gradient(circle at 96% 24%, rgba(20, 119, 255, 0.18), transparent 19rem),
        linear-gradient(145deg, rgba(5, 14, 25, 0.92), rgba(2, 7, 14, 0.86));
      box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.035),
        0 1.4rem 3rem rgba(0, 0, 0, 0.36);
      overflow: hidden;
    }

    .referral-card::before {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      border-radius: inherit;
      background:
        linear-gradient(120deg, rgba(255, 255, 255, 0.08), transparent 22%, transparent 72%, rgba(76, 255, 104, 0.045)),
        linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.22));
    }

    .qr-wrap,
    .copy-panel {
      position: relative;
      z-index: 2;
    }

    .qr-wrap {
      display: grid;
      gap: 0.85rem;
      justify-items: center;
    }

    .qr-frame {
      width: min(100%, 21.5rem);
      padding: 0.72rem;
      border: 1px solid rgba(245, 247, 251, 0.18);
      border-radius: 1.15rem;
      background: rgba(246, 251, 255, 0.96);
      box-shadow:
        0 0 0 1px rgba(76, 255, 104, 0.10),
        0 0 2.1rem rgba(20, 119, 255, 0.18);
    }

    .qr-frame img {
      display: block;
      width: 100%;
      height: auto;
      border-radius: 0.65rem;
    }

    .scan-note {
      margin: 0;
      color: var(--dim);
      font-size: 0.75rem;
      font-weight: 800;
      letter-spacing: 0.12em;
      text-align: center;
      text-transform: uppercase;
    }

    .copy-panel {
      display: grid;
      gap: 1rem;
    }

    .status-chip {
      width: fit-content;
      display: inline-flex;
      align-items: center;
      gap: 0.55rem;
      padding: 0.48rem 0.72rem;
      border: 1px solid rgba(76, 255, 104, 0.24);
      border-radius: 999px;
      color: rgba(235, 255, 240, 0.90);
      background: rgba(76, 255, 104, 0.08);
      font-size: 0.65rem;
      font-weight: 850;
      letter-spacing: 0.16em;
      text-transform: uppercase;
    }

    .status-chip::before {
      content: "";
      width: 0.48rem;
      height: 0.48rem;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 0.7rem rgba(76, 255, 104, 0.58);
    }

    h2 {
      margin: 0;
      font-size: clamp(1.9rem, 5vw, 3.4rem);
      line-height: 0.96;
      letter-spacing: -0.055em;
      text-wrap: balance;
    }

    .explain {
      margin: 0;
      max-width: 38rem;
      color: var(--muted);
      font-size: clamp(0.96rem, 2vw, 1.08rem);
      line-height: 1.62;
    }

    .cta-row {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
      align-items: center;
      margin-top: 0.2rem;
    }

    .cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 3rem;
      padding: 0.86rem 1rem;
      border: 1px solid rgba(76, 255, 104, 0.44);
      border-radius: 999px;
      color: #001407;
      background: linear-gradient(135deg, #b8ffc6, var(--green));
      font-size: 0.76rem;
      font-weight: 900;
      letter-spacing: 0.13em;
      text-decoration: none;
      text-transform: uppercase;
      box-shadow:
        0 0 1.4rem rgba(76, 255, 104, 0.16),
        inset 0 0 0.8rem rgba(255,255,255,0.25);
    }

    .cta:hover,
    .cta:focus-visible {
      outline: none;
      transform: translateY(-1px);
      box-shadow:
        0 0 1.9rem rgba(76, 255, 104, 0.24),
        inset 0 0 0.8rem rgba(255,255,255,0.33);
    }

    .secondary-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 3rem;
      padding: 0.82rem 0.95rem;
      border: 1px solid rgba(145, 196, 255, 0.16);
      border-radius: 999px;
      color: rgba(245, 247, 251, 0.78);
      background: rgba(3, 10, 18, 0.56);
      font-size: 0.72rem;
      font-weight: 840;
      letter-spacing: 0.12em;
      text-decoration: none;
      text-transform: uppercase;
    }

    .secondary-link:hover,
    .secondary-link:focus-visible {
      border-color: rgba(89, 176, 255, 0.34);
      color: #fff;
      outline: none;
    }

    .fine-print {
      margin: 0;
      max-width: 40rem;
      color: var(--dim);
      font-size: 0.78rem;
      line-height: 1.55;
    }

    .link-line {
      margin: 0;
      padding: 0.78rem 0.9rem;
      border: 1px solid rgba(145, 196, 255, 0.12);
      border-radius: 0.9rem;
      color: rgba(210, 221, 236, 0.78);
      background: rgba(0, 0, 0, 0.24);
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: clamp(0.66rem, 1.7vw, 0.8rem);
      line-height: 1.45;
      overflow-wrap: anywhere;
    }

    .site-footer {
      position: relative;
      z-index: 10;
      padding: 1.5rem 1rem 2rem;
      color: rgba(245, 247, 251, 0.48);
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.16em;
      text-align: center;
      text-transform: lowercase;
    }

    .site-footer span {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.45rem 0.75rem;
      border: 1px solid rgba(145, 196, 255, 0.14);
      border-radius: 999px;
      background: rgba(5, 12, 22, 0.34);
      backdrop-filter: blur(10px);
      box-shadow: 0 0 1rem rgba(20, 119, 255, 0.06);
    }

    @media (max-width: 760px) {
      .referral-shell {
        width: min(100% - 1.05rem, 44rem);
        padding-top: calc(env(safe-area-inset-top, 0px) + 4.75rem);
      }

      .referral-card {
        grid-template-columns: 1fr;
      }

      h1 { max-width: 9ch; }

      .qr-frame { width: min(100%, 18.5rem); }
    }