:root { color-scheme: light; --ink: #34372d; --muted: #77796e; }
    * { box-sizing: border-box; }
    html { min-height: 100%; background: #e5e1d3; }
    body {
      min-height: 100svh;
      margin: 0;
      padding: 48px 24px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 24px;
      color: var(--ink);
      font-family: "Inter", sans-serif;
      -webkit-font-smoothing: antialiased;
      background: #e5e1d3 url("quiet-landscape.jpg") center center / cover no-repeat;
      background-attachment: fixed;
    }
    body::before {
      content: "";
      position: fixed;
      inset: 0;
      background: rgba(244, 240, 225, .13);
      pointer-events: none;
    }
    .card {
      position: relative;
      width: min(100%, 620px);
      padding: 36px 44px;
      border: 1px solid rgba(255, 255, 255, .9);
      border-radius: 15px;
      background: #fffef9;
      box-shadow: 0 2px 4px #433c2110, 0 20px 70px #433c2126, 0 0 0 5px #fffef92e;
      text-align: center;
    }
    .letter { margin: 0 0 30px; text-align: left; font-size: 15px; line-height: 1.75; overflow-wrap: break-word; }
    .letter h1 { margin: 0 0 18px; font-size: inherit; line-height: inherit; font-weight: 400; }
    .letter p, .letter ul { margin: 0 0 18px; }
    .letter p:last-child { margin-bottom: 0; }
    .letter ul { padding-left: 22px; }
    .letter li { padding-left: 3px; }
    .letter li + li { margin-top: 5px; }
    .letter strong { font-weight: 600; }
    form { text-align: left; }
    label { display: block; margin-bottom: 9px; font-size: 11px; font-weight: 500; color: #65685d; }
    input, button { width: 100%; min-height: 47px; border-radius: 6px; font: inherit; font-size: 13px; }
    input { padding: 13px 14px; border: 1px solid #dedfd5; background: #fff; color: var(--ink); box-shadow: 0 1px 2px #34372d05; }
    input::placeholder { color: #a1a296; }
    button { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 10px; border: 1px solid #414b35; background: #48543b; color: #fffef9; cursor: pointer; transition: background .2s, transform .2s; }
    button:hover { background: #38432e; }
    button:active { transform: translateY(1px); }
    input:focus-visible, button:focus-visible { outline: 3px solid #a4ad8c; outline-offset: 3px; }
    .status { margin: 14px 0 0; color: #656c52; font-size: 12px; line-height: 1.6; text-align: center; }
    .status:empty { display: none; }
    .paperplane { width: min(100%, 220px); aspect-ratio: 4 / 3; margin: 0 auto; }
    .signup-complete h1 { margin: 0; font-size: clamp(21px, 4vw, 26px); font-weight: 600; }
    .signup-complete p { margin: 12px 0 24px; color: var(--muted); font-size: 15px; line-height: 1.6; }
    .signup-complete a { color: #48543b; font-size: 13px; text-underline-offset: 3px; }
    .colophon { position: relative; width: 100%; margin: 0; color: #4d5143; font-size: 10px; letter-spacing: .025em; text-align: center; }
    @media (max-width: 520px) {
      body { padding: 48px 22px; background-attachment: scroll; }
      .card { padding: 34px 26px 27px; }
      .letter { font-size: 14px; }
    }
    @media (prefers-reduced-motion: reduce) { button { transition: none; } }
    .honeypot { position: absolute; left: -10000px; }
    button:disabled { opacity: .6; cursor: wait; }