.firmware-page { background: #f2f1ee; }
.firmware-page .site-nav a[aria-current="page"] { color: var(--red); }
.download-hero {
  color: #fff;
  padding: 145px 0 95px;
  background:
    radial-gradient(circle at 82% 24%, rgba(207,0,0,.28), transparent 24%),
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px),
    var(--ink);
  background-size: auto, 34px 34px, 34px 34px, auto;
}
.download-hero-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 70px; align-items: end; }
.download-hero h1 {
  max-width: 900px;
  margin: 0 0 24px;
  font: 950 clamp(3.5rem, 7.5vw, 7.4rem)/.88 "Arial Black", Impact, sans-serif;
  letter-spacing: -.065em;
  text-transform: uppercase;
}
.download-hero h1 span, .firmware-downloads h2 span, .guide-intro h2 span { color: var(--red); }
.download-lead { max-width: 780px; color: #c4cdd3; font-size: 1.14rem; }
.download-warning { max-width: 820px; margin-top: 28px; padding: 18px 20px; border-left: 5px solid var(--red); background: rgba(255,255,255,.07); color: #e3e8eb; }
.download-warning code, .empty-releases code, .firmware-steps code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.firmware-summary { padding: 34px; border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.06); box-shadow: inset 4px 0 0 var(--red); }
.summary-label { display: block; color: #aab5bd; font-size: .72rem; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
.firmware-summary > strong { display: block; margin: 8px 0; color: #fff; font: 950 4.5rem/1 "Arial Black", Impact, sans-serif; }
.firmware-summary p { color: #bac4ca; }
.firmware-summary .button { margin-top: 12px; }
.firmware-downloads { background: #f2f1ee; }
.release-download-grid { display: grid; gap: 22px; margin-top: 42px; }
.download-card { padding: 36px; border: 1px solid var(--line); background: #fff; box-shadow: 0 15px 40px rgba(17,26,34,.06); }
.download-card.latest { border-top: 5px solid var(--red); }
.download-card-top { display: grid; grid-template-columns: 1fr auto; gap: 35px; align-items: start; }
.latest-badge { display: inline-block; margin-bottom: 14px; padding: 7px 10px; color: #fff; background: var(--red); font-size: .68rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.download-card h3 { margin: 0 0 10px; font: 950 clamp(1.65rem, 3vw, 2.45rem)/1 "Arial Black", Impact, sans-serif; letter-spacing: -.035em; text-transform: uppercase; }
.download-card p { max-width: 760px; color: var(--muted); }
.bin-mark { display: grid; place-items: center; width: 80px; height: 96px; border: 4px solid var(--ink); position: relative; background: #f3f3f0; }
.bin-mark::before { content: ""; position: absolute; top: -4px; right: -4px; width: 24px; height: 24px; border-left: 4px solid var(--ink); border-bottom: 4px solid var(--ink); background: #fff; }
.bin-mark span { margin-top: 18px; color: var(--red); font-weight: 950; letter-spacing: .08em; }
.file-facts { display: grid; grid-template-columns: 2fr .7fr 1fr; margin: 28px 0 0; border: 1px solid var(--line); }
.file-facts span { padding: 15px 18px; color: var(--muted); overflow-wrap: anywhere; }
.file-facts span + span { border-left: 1px solid var(--line); }
.file-facts strong { display: block; margin-bottom: 5px; color: var(--ink); font-size: .67rem; letter-spacing: .08em; text-transform: uppercase; }
.release-notes { margin-top: 26px; padding: 20px 22px; background: #f2f1ee; border-left: 4px solid var(--ink); }
.release-notes > strong { text-transform: uppercase; letter-spacing: .06em; font-size: .78rem; }
.release-notes ul { margin: 12px 0 0; padding-left: 20px; color: var(--muted); }
.release-notes li { margin: 7px 0; }
.download-actions { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; margin-top: 28px; }
.download-actions > span { color: var(--muted); font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; }
.empty-releases { margin-top: 40px; padding: 50px; border: 1px dashed #9ba3a9; background: #fff; text-align: center; }
.empty-releases > span { color: var(--red); font-size: .72rem; font-weight: 950; letter-spacing: .12em; }
.empty-releases h3 { margin: 12px 0; text-transform: uppercase; }
.update-guide { color: #fff; background: var(--ink); }
.guide-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 75px; align-items: start; }
.guide-intro { position: sticky; top: 125px; }
.guide-intro h2 { margin: 0 0 24px; font: 950 clamp(2.7rem, 5vw, 5.1rem)/.95 "Arial Black", Impact, sans-serif; letter-spacing: -.055em; text-transform: uppercase; }
.guide-intro > p:not(.eyebrow) { color: #b9c3c9; }
.critical-note { margin-top: 28px; padding: 18px; border: 1px solid rgba(207,0,0,.7); background: rgba(207,0,0,.12); color: #e8edf0; }
.firmware-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 15px; }
.firmware-steps li { display: grid; grid-template-columns: 72px 1fr; gap: 22px; padding: 28px; border: 1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.045); }
.firmware-steps li > span { display: grid; place-items: center; width: 58px; height: 58px; border: 3px solid var(--red); color: #fff; font: 950 1.35rem/1 "Arial Black", Impact, sans-serif; }
.firmware-steps h3 { margin: 0 0 7px; text-transform: uppercase; }
.firmware-steps p { margin: 0; color: #bbc5cb; }
.firmware-steps a { color: #fff; }
.firmware-help { background: #e5e3de; }
.help-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 65px; }
.help-grid h2 { margin-top: 0; font: 950 clamp(2.2rem, 4vw, 4rem)/.98 "Arial Black", Impact, sans-serif; letter-spacing: -.045em; text-transform: uppercase; }
.help-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: #c9c7c2; border: 1px solid #c9c7c2; }
.help-cards article { padding: 30px; background: #fff; }
.help-cards h3 { margin-top: 0; text-transform: uppercase; }
.help-cards p { margin-bottom: 0; color: var(--muted); }
.help-cards a { color: var(--red); font-weight: 850; }
.firmware-download-cta { display: inline-flex; margin-top: 22px; }

@media (max-width: 980px) {
  .download-hero-grid, .guide-grid, .help-grid { grid-template-columns: 1fr; }
  .guide-intro { position: static; }
  .file-facts { grid-template-columns: 1fr; }
  .file-facts span + span { border-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 680px) {
  .download-hero { padding: 115px 0 75px; }
  .download-hero h1 { font-size: 3.35rem; }
  .firmware-summary, .download-card, .empty-releases { padding: 25px; }
  .download-card-top { grid-template-columns: 1fr; }
  .bin-mark { display: none; }
  .firmware-steps li { grid-template-columns: 52px 1fr; padding: 22px 18px; gap: 15px; }
  .firmware-steps li > span { width: 46px; height: 46px; }
  .help-cards { grid-template-columns: 1fr; }
}