/* ---------- fonts (self-hosted, SIL OFL 1.1) ---------- */
  @font-face {
    font-family: "Barlow Semi Condensed";
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url("../fonts/barlow-semi-condensed-400.woff2") format("woff2");
  }
  @font-face {
    font-family: "Barlow Semi Condensed";
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url("../fonts/barlow-semi-condensed-500.woff2") format("woff2");
  }
  @font-face {
    font-family: "Barlow Semi Condensed";
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url("../fonts/barlow-semi-condensed-600.woff2") format("woff2");
  }
  @font-face {
    font-family: "Chakra Petch";
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url("../fonts/chakra-petch-600.woff2") format("woff2");
  }
  @font-face {
    font-family: "Chakra Petch";
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url("../fonts/chakra-petch-700.woff2") format("woff2");
  }

  :root {
    --void: #05070a;
    --panel: #0b1016;
    --phosphor: #2bff5f;
    --bone: #e6f2e9;
    --amber: #ffb03b;
    --crimson: #ff3b47;
    --cyan: #3be0ff;
    --ink: #8fa39a;
    --rule: #1b2a22;
    --display: "Chakra Petch", "Segoe UI", system-ui, sans-serif;
    --body: "Barlow Semi Condensed", "Segoe UI", system-ui, sans-serif;
  }

  body {
    margin: 0;
    background: var(--void);
    color: var(--bone);
    font-family: var(--body);
    font-size: 16px;
    line-height: 1.45;
    padding: 0 16px;
    display: flex;
    justify-content: center;
    -webkit-text-size-adjust: 100%;
  }

  .cab {
    width: 100%;
    max-width: 700px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding-block: 24px 40px;
  }

  /* ---------- marquee ---------- */
  .marquee {
    display: flex;
    align-items: center;
    gap: 14px;
  }
  .marquee canvas { display: block; }
  .marquee h1 {
    margin: 0;
    font-family: var(--display);
    font-weight: 700;
    font-size: clamp(20px, 5.5vw, 32px);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--phosphor);
    text-wrap: balance;
  }
  .marquee p {
    margin: 2px 0 0;
    font-size: 13px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--ink);
  }

  /* ---------- screen ---------- */
  .screen {
    position: relative;
    align-self: center;
    background: #000;
    border: 1px solid var(--rule);
    box-shadow: 0 0 0 6px #0a0d11, 0 0 44px -6px rgba(43, 255, 95, 0.26);
  }
  .screen canvas {
    display: block;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
  }
  .scan {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
      repeating-linear-gradient(to bottom, rgba(0,0,0,0.34) 0 1px, rgba(0,0,0,0) 1px 3px),
      radial-gradient(ellipse at center, rgba(0,0,0,0) 52%, rgba(0,0,0,0.5) 100%);
  }
  .ctrls {
    margin-left: auto;
    align-self: center;
    display: flex;
    gap: 8px;
  }
  .ctl {
    padding: 8px 14px;
    background: var(--panel);
    border: 1px solid var(--rule);
    color: var(--ink);
    font-family: var(--display);
    font-size: 12px;
    letter-spacing: 0.14em;
    cursor: pointer;
  }
  .ctl:hover { color: var(--phosphor); border-color: var(--phosphor); }
  .ctl:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
  .ctl.off { color: var(--crimson); }

  /* ---------- touch pad ---------- */
  .pad { display: none; }
  @media (pointer: coarse) {
    .pad {
      display: grid;
      grid-template-columns: 1fr 1.4fr 1fr;
      gap: 10px;
    }
  }
  .pbtn {
    font-family: var(--display);
    font-size: 15px;
    letter-spacing: 0.1em;
    padding: 18px 0;
    color: var(--bone);
    background: var(--panel);
    border: 1px solid var(--rule);
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    cursor: pointer;
  }
  .pbtn:active { background: #16221b; border-color: var(--phosphor); color: var(--phosphor); }
  .pfire { color: var(--phosphor); }

  /* ---------- instruction card ---------- */
  .bezel {
    border: 1px solid var(--rule);
    background: linear-gradient(180deg, #0a0e13, var(--panel));
    padding: 18px 18px 20px;
  }
  .bezel h2 {
    margin: 0 0 14px;
    font-family: var(--display);
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--ink);
    border-bottom: 1px solid var(--rule);
    padding-bottom: 10px;
  }
  .caps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
    gap: 12px 26px;
  }
  .cap {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: baseline;
    gap: 12px;
  }
  .cap canvas {
    image-rendering: pixelated;
    align-self: center;
  }
  .cap b {
    font-family: var(--display);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    display: block;
  }
  .cap span {
    font-size: 14px;
    color: var(--ink);
  }
  .cap.good b { color: var(--phosphor); }
  .cap.bad b { color: var(--crimson); }
  .cap.shield b { color: var(--cyan); }

  .keys {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--rule);
    display: flex;
    flex-wrap: wrap;
    gap: 8px 22px;
    font-size: 14px;
    color: var(--ink);
  }
  .keys span { display: inline-flex; align-items: center; gap: 8px; }
  kbd {
    font-family: var(--display);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--bone);
    background: #131c16;
    border: 1px solid var(--rule);
    border-bottom-width: 2px;
    border-radius: 3px;
    padding: 3px 7px;
  }

  footer {
    font-size: 13px;
    color: var(--ink);
    letter-spacing: 0.04em;
  }
  footer p { margin: 0; }
  .legal {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 18px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--rule);
  }
  .legal a { color: var(--ink); }
  .legal a:hover { color: var(--phosphor); }
  .legal a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }