:root {
    --ground: #070b14;
    --raised: #0e1626;
    --sunken: #0a1120;
    --line: #1e2c44;
    --line-soft: #16223a;
    --text: #e2ecfa;
    --muted: #8ba0bd;
    --dim: #64789a;
    --accent: #72e1ea;
    --amber: #d7a766;
    --serif: "Instrument Serif", Georgia, serif;
    --sans: "IBM Plex Sans", -apple-system, system-ui, sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  }

  * { box-sizing: border-box; }

  body {
    background: var(--ground);
    color: var(--text);
    font-family: var(--sans);
    font-size: 17px;
    line-height: 1.65;
    margin: 0;
    -webkit-font-smoothing: antialiased;
  }

  .wrap { max-width: 1120px; margin: 0 auto; padding: 0 28px; }
  .narrow { max-width: 660px; }

  .label {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--dim);
    margin: 0 0 18px;
  }

  h1 {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(44px, 7vw, 82px);
    line-height: 1.02;
    letter-spacing: -0.01em;
    margin: 0 0 24px;
    text-wrap: balance;
  }
  h2 {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(30px, 4.2vw, 46px);
    line-height: 1.1;
    margin: 0 0 20px;
    text-wrap: balance;
  }
  h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 8px;
    letter-spacing: -0.005em;
  }
  em { font-style: italic; }

  p { margin: 0 0 20px; }
  .lede { font-size: 21px; line-height: 1.55; color: var(--muted); }
  .muted { color: var(--muted); }

  /* ---------------- masthead ---------------- */
  header.top {
    border-bottom: 1px solid var(--line-soft);
    padding: 26px 0;
  }
  .brand { display: flex; align-items: center; gap: 13px; }
  .brand a.topnav {
    margin-left: auto;
    color: var(--dim);
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-decoration: none;
  }
  .brand a.topnav:hover { color: var(--accent); }
  .brand-name {
    font-family: var(--mono);
    font-size: 13px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--text);
  }

  /* ---------------- hero ---------------- */
  .hero { padding: 96px 0 8px; }
  .hero .lede { max-width: 640px; }
  .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; align-items: center; }

  a.cta {
    display: inline-block;
    background: var(--accent);
    color: #04222a;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    padding: 13px 26px;
    border-radius: 4px;
    transition: transform 0.15s ease, background 0.15s ease;
  }
  a.cta:hover { background: #8ceaf2; transform: translateY(-1px); }
  a.cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
  a.quiet {
    color: var(--muted);
    font-size: 15px;
    text-decoration: none;
    border-bottom: 1px solid var(--line);
    padding-bottom: 2px;
  }
  a.quiet:hover { color: var(--text); border-color: var(--accent); }

  /* ---------------- screenshots ---------------- */
  figure { margin: 0; }
  .shot {
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
    background: var(--sunken);
    box-shadow: 0 24px 70px -30px rgba(0, 0, 0, 0.9);
  }
  .shot img { display: block; width: 100%; height: auto; }
  figcaption {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--dim);
    margin-top: 12px;
    letter-spacing: 0.02em;
  }
  .bleed { margin-top: 56px; }

  section { padding: 92px 0; border-top: 1px solid var(--line-soft); }
  section:first-of-type { border-top: none; }

  .split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
  }
  .split.reverse .text { order: 2; }
  @media (max-width: 860px) {
    .split { grid-template-columns: 1fr; gap: 36px; }
    .split.reverse .text { order: 0; }
  }

  /* ---------------- the rotation table ---------------- */
  .scroller { overflow-x: auto; margin: 28px 0 12px; }
  table { border-collapse: collapse; width: 100%; min-width: 460px; font-size: 15px; }
  th, td { text-align: left; padding: 12px 18px 12px 0; border-bottom: 1px solid var(--line-soft); }
  th {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--dim);
    font-weight: 500;
  }
  td.figure-cell {
    font-family: var(--mono);
    font-variant-numeric: tabular-nums;
    color: var(--accent);
    white-space: nowrap;
  }
  td.wide { color: var(--amber); }

  /* ---------------- feature grid ---------------- */
  .grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2px;
    background: var(--line-soft);
    border: 1px solid var(--line-soft);
    border-radius: 8px;
    overflow: hidden;
    margin-top: 40px;
  }
  .cell { background: var(--ground); padding: 30px 28px; }
  .cell p { margin: 0; font-size: 15.5px; color: var(--muted); }

  /* ---------------- safety ---------------- */
  .refusals { list-style: none; padding: 0; margin: 32px 0 0; }
  .refusals li {
    display: grid;
    grid-template-columns: 190px 1fr;
    gap: 24px;
    padding: 20px 0;
    border-top: 1px solid var(--line-soft);
  }
  .refusals .what {
    font-family: var(--mono);
    font-size: 12.5px;
    color: var(--amber);
    letter-spacing: 0.04em;
    padding-top: 3px;
  }
  .refusals .why { color: var(--muted); font-size: 15.5px; }
  @media (max-width: 640px) {
    .refusals li { grid-template-columns: 1fr; gap: 6px; }
  }

  /* ---------------- compatibility ---------------- */
  .kit { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 34px; margin-top: 40px; }
  .kit h3 { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--dim); font-weight: 500; margin-bottom: 14px; }
  .kit ul { list-style: none; margin: 0; padding: 0; }
  .kit li { padding: 5px 0; font-size: 15.5px; color: var(--muted); }

  ul.plain-list { list-style: none; padding: 0; margin: 20px 0 0; }
  ul.plain-list li {
    padding: 14px 0; border-top: 1px solid var(--line-soft);
    color: var(--muted); font-size: 15.5px;
  }
  ul.plain-list strong { color: var(--text); font-weight: 600; }

  /* ---------------- closing ---------------- */
  .closing { text-align: left; padding: 110px 0 40px; }
  footer {
    border-top: 1px solid var(--line-soft);
    padding: 34px 0 70px;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--dim);
    letter-spacing: 0.03em;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
  }

  /* The address is shown rather than hidden behind a mail link: a page inside
     a sandboxed frame cannot open a mail client, and a button that does nothing
     is worse than an address anyone can read and copy. */
  .address {
    display: flex; align-items: center; flex-wrap: wrap; gap: 16px;
    border: 1px solid var(--line); border-radius: 6px;
    background: var(--raised); padding: 18px 22px; margin-top: 34px;
    max-width: 560px;
  }
  .address-label {
    font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
    text-transform: uppercase; color: var(--dim);
  }
  .address-value {
    font-family: var(--mono); font-size: 17px; color: var(--accent);
    user-select: all; flex: 1; min-width: 210px;
  }
  button.copy {
    font-family: var(--sans); font-size: 13.5px; font-weight: 500;
    background: transparent; color: var(--muted);
    border: 1px solid var(--line); border-radius: 4px;
    padding: 7px 15px; cursor: pointer;
  }
  button.copy:hover { color: var(--text); border-color: var(--accent); }
  button.copy:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

  @media (prefers-reduced-motion: reduce) {
    a.cta { transition: none; }
  }

  /* ---------------- enquiry form ---------------- */
  form.enquiry {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--raised);
    padding: 30px 30px 26px;
    margin-top: 34px;
    max-width: 620px;
  }
  .field { margin-bottom: 20px; }
  .field label {
    display: block;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--dim);
    margin-bottom: 8px;
  }
  .field .hint {
    text-transform: none;
    letter-spacing: 0.02em;
    font-size: 11.5px;
    color: #4d5f7d;
    margin-left: 6px;
  }
  .field input, .field textarea {
    width: 100%;
    background: var(--sunken);
    border: 1px solid var(--line);
    border-radius: 5px;
    color: var(--text);
    font-family: var(--sans);
    font-size: 16px;
    padding: 11px 13px;
    resize: vertical;
  }
  .field input:focus, .field textarea:focus {
    outline: none;
    border-color: var(--accent);
  }
  .field.invalid input, .field.invalid textarea { border-color: var(--danger, #ff9c9c); }
  .field.human input { max-width: 130px; }

  /* Out of sight, out of the tab order, out of the accessibility tree. Not
     display:none, which some automated submitters skip for that very reason. */
  .trap {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
  }

  .actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
  button.send {
    background: var(--accent);
    color: #04222a;
    font-family: var(--sans);
    font-weight: 600;
    font-size: 15px;
    border: none;
    border-radius: 4px;
    padding: 12px 24px;
    cursor: pointer;
  }
  button.send:hover { background: #8ceaf2; }
  button.send:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
  button.send[disabled] { opacity: 0.5; cursor: default; }
  .status { font-size: 14.5px; color: var(--muted); }
  .status.bad { color: #ff9c9c; }
  .status.good { color: var(--accent); }
  .fineprint { font-size: 13px; color: #4d5f7d; margin: 18px 0 0; }