:root {
  --ar-ink: #0d0f20;
  --ar-blue: #2398ff;
  --ar-blue-hover: #1877f2;
  --ar-border: #b9cdcb;
  --ar-muted: #333a40;
  --ar-surface: #f0f0f0;
}
html { scroll-behavior: smooth; }
html, body { margin: 0; }
body { font-family: Eina, system-ui, sans-serif; background: #fff; color: var(--ar-ink); }
* { box-sizing: border-box; }
a { color: var(--ar-blue-hover); }
a:hover { color: var(--ar-blue); }
button, input { font: inherit; }
[hidden] { display: none !important; }
.ar-page { min-height: 100dvh; }
.ar-header { display: flex; justify-content: center; padding: 28px 24px 8px; }
.ar-logo { display: block; width: auto; height: 36px; max-width: 100%; }
.ar-sec { max-width: 1140px; margin: 0 auto; padding: 72px 32px; }
.ar-hero { display: grid; grid-template-columns: minmax(0,5fr) minmax(0,6fr); gap: 56px; align-items: center; padding-top: 40px; padding-bottom: 64px; }
.ar-hero-copy { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
h1, h2, h3, p { margin: 0; }
.ar-h1 { font-size: 44px; line-height: 1.1; font-weight: 600; letter-spacing: -.3px; }
.ar-h2 { font-size: 32px; line-height: 1.15; font-weight: 600; letter-spacing: -.2px; }
.ar-intro { font-size: 18px; line-height: 1.65; color: var(--ar-muted); max-width: 520px; }
.ar-proof { font-size: 14px; line-height: 1.5; color: var(--ar-muted); max-width: 460px; }
.ar-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 14px 28px; border-radius: 6px; background: var(--ar-blue); color: #fff; text-decoration: none; font-weight: 700; font-size: 14px; letter-spacing: .04em; text-transform: uppercase; line-height: 1.2; border: 0; cursor: pointer; text-align: center; transition: transform .2s; }
.ar-btn:hover { background: var(--ar-blue-hover); color: #fff; transform: translateY(-1px); }
.ar-btn.outline { background: transparent; border: 1.5px solid var(--ar-blue); color: var(--ar-blue-hover); }
.ar-btn.outline:hover { background: rgba(35,152,255,.1); }
.ar-btn:focus-visible, .ar-pill:focus-visible, a:focus-visible, button:focus-visible { outline: 3px solid var(--ar-blue); outline-offset: 4px; }
.ar-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.ar-pill { min-height: 44px; padding: 10px 16px; border-radius: 9999px; font-size: 14px; font-weight: 600; cursor: pointer; background: #fff; border: 1.5px solid var(--ar-border); color: var(--ar-ink); }
.ar-pill[aria-pressed="true"] { background: var(--ar-ink); border-color: var(--ar-ink); color: #fff; }
.ar-input { min-height: 44px; padding: 10px 12px; border: 1px solid var(--ar-border); border-radius: 6px; font-size: 15px; background: #fff; color: var(--ar-ink); width: 100%; min-width: 0; }
.ar-input:focus { outline: none; border-color: var(--ar-blue); box-shadow: 0 0 0 3px rgba(35,152,255,.25); }
.ar-label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; font-weight: 600; color: var(--ar-muted); }
.ar-form { display: flex; flex-direction: column; gap: 12px; border: 1px solid var(--ar-border); border-radius: 12px; }
.ar-hero-form { margin-top: 4px; max-width: 460px; background: var(--ar-surface); padding: 20px; }
.ar-form2 { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.ar-form3 { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr) auto; gap: 10px; }
.ar-form3 .ar-btn { width: 100%; align-self: end; }
.ar-form > .ar-btn { width: 100%; }
.ar-eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--ar-blue-hover); }
.ar-agree { display: flex; align-items: center; gap: 10px; font-size: 13px; line-height: 1.4; color: var(--ar-muted); }
.ar-agree input { width: 18px; height: 18px; margin: 0; accent-color: var(--ar-blue); flex-shrink: 0; }
.ar-note { font-size: 12px; line-height: 1.5; color: #5b636a; }
.hp { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.err { padding: 14px 16px; border: 1px solid #c93b45; border-radius: 6px; background: #fff0f1; color: #9b2330; font-size: 14px; line-height: 1.5; }
.ar-video { border-radius: 12px; overflow: hidden; border: 1px solid var(--ar-border); background: var(--ar-ink); box-shadow: 0 8px 32px rgba(13,15,32,.16); line-height: 0; }
.ar-video video { width: 100%; height: auto; display: block; }
.ar-section { border-top: 1px solid #e3e8ea; }
.ar-section-head { display: flex; flex-direction: column; gap: 8px; margin-bottom: 36px; max-width: 640px; }
.ar-section-head p { font-size: 17px; line-height: 1.6; color: var(--ar-muted); }
.ar-modules, .ar-versions { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
.ar-modules-section { padding-bottom: 88px; }
.ar-card { background: #fff; border: 1px solid var(--ar-border); border-radius: 12px; box-shadow: 0 1px 3px rgba(0,0,0,.06); transition: transform .2s; overflow: hidden; }
.ar-card:hover { border-color: var(--ar-blue); box-shadow: 0 8px 24px rgba(13,15,32,.1); transform: translateY(-2px); }
.ar-module img { width: 100%; height: 180px; object-fit: cover; display: block; }
.ar-module-copy { padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.ar-module-label { font-size: 11px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--ar-blue-hover); }
.ar-module h3, .ar-audiences h3, .ar-module-cta h3 { font-size: 20px; line-height: 1.25; font-weight: 600; }
.ar-module p, .ar-audiences p, .ar-module-cta p { font-size: 15px; line-height: 1.6; color: var(--ar-muted); }
.ar-module-cta { background: rgba(35,152,255,.08); border: 1px solid var(--ar-border); border-radius: 12px; padding: 24px; display: flex; flex-direction: column; justify-content: center; gap: 12px; }
.ar-module-cta .ar-btn { align-self: flex-start; }
.ar-audiences { padding-top: 64px; padding-bottom: 64px; }
.ar-audiences .ar-h2 { max-width: 720px; margin-bottom: 28px; }
.ar-audiences article { display: flex; flex-direction: column; gap: 8px; }
.ar-versions-section { background: var(--ar-surface); border-bottom: 1px solid #e3e8ea; }
.ar-version { padding: 28px; display: flex; flex-direction: column; gap: 14px; border-top-width: 3px; }
.ar-version.is-device, .ar-version.is-selected { border-top-color: var(--ar-blue); }
.ar-version.is-selected { border-color: var(--ar-blue); }
.ar-badge { align-self: flex-start; font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: #fff; background: var(--ar-ink); border-radius: 9999px; padding: 5px 10px; }
.is-selected .ar-badge { background: var(--ar-blue); }
.ar-version-title { display: flex; align-items: center; gap: 12px; }
.ar-icon { width: 40px; height: 40px; flex-shrink: 0; border-radius: 50%; background: rgba(35,152,255,.12); display: flex; align-items: center; justify-content: center; }
.ar-icon svg { width: 22px; height: 22px; fill: none; stroke: var(--ar-blue-hover); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.ar-version h3, .ar-device-form h3 { font-size: 22px; line-height: 1.2; font-weight: 600; }
.ar-version-body { font-size: 15px; line-height: 1.6; color: var(--ar-muted); flex-grow: 1; }
.ar-version-meta { font-size: 13px; line-height: 1.5; color: #5b636a; }
.ar-version .ar-btn { margin-top: 6px; }
.ar-device-form { margin-top: 24px; background: #fff; border-color: var(--ar-blue); padding: 28px; gap: 14px; box-shadow: 0 8px 24px rgba(13,15,32,.1); scroll-margin-top: 24px; }
.ar-form-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px; }
.ar-change { background: none; border: 0; padding: 8px 0; font-size: 13px; font-weight: 600; color: var(--ar-blue-hover); cursor: pointer; }
.ar-faq { max-width: 800px; }
.ar-faq .ar-h2 { margin-bottom: 20px; }
.ar-faq-list { border-bottom: 1px solid #e3e8ea; }
.ar-faq article { padding: 20px 0; border-top: 1px solid #e3e8ea; display: flex; flex-direction: column; gap: 6px; }
.ar-faq h3 { font-size: 18px; line-height: 1.3; font-weight: 600; }
.ar-faq p { font-size: 15px; line-height: 1.6; color: var(--ar-muted); }
.ar-closing { background: var(--ar-surface); }
.ar-closing .ar-sec { max-width: 800px; padding-top: 56px; padding-bottom: 56px; display: flex; flex-direction: column; gap: 14px; text-align: center; align-items: center; }
.ar-closing p { font-size: 17px; line-height: 1.65; color: var(--ar-muted); }
.ar-closing .ar-btn { margin-top: 8px; }
.ar-footer .ar-sec { padding-top: 40px; padding-bottom: 32px; display: flex; flex-direction: column; align-items: center; gap: 20px; text-align: center; }
.ar-footer .ar-logo { height: 28px; }
.ar-disclaimer { font-size: 12px; line-height: 1.6; color: #5b636a; max-width: 640px; }
.ar-copyright { font-size: 13px; line-height: 1.6; color: #5b636a; }
.ar-copyright a { color: #5b636a; }
.ar-divider { margin: 0 8px; }
@media (max-width: 980px) {
  .ar-versions, .ar-modules { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .ar-hero { grid-template-columns: minmax(0,1fr); }
  .ar-hero-form { max-width: 100%; }
  .ar-form3 { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .ar-form3 .ar-btn { grid-column: 1 / -1; }
}
@media (max-width: 767px) {
  .ar-versions, .ar-modules, .ar-form2, .ar-form3 { grid-template-columns: minmax(0,1fr); }
  .ar-h1 { font-size: 34px; }
  .ar-h2 { font-size: 28px; }
  .ar-sec { padding-left: 16px; padding-right: 16px; }
  .ar-device-form { padding: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ar-card, .ar-btn { transition: none; }
  .ar-card:hover, .ar-btn:hover { transform: none; }
}