:root {
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #f4f5f2;
  background: #101416;
  line-height: 1.6;
  --line: #2a3032;
  --muted: #9da5a7;
  --acid: #d7ff00;
  --amber: #f0b441;
}
* { box-sizing: border-box; }
html { background: #101416; }
body { margin: 0; min-width: 320px; background: radial-gradient(circle at 50% 0, #20282a 0, #101416 38rem); }
img { display: block; max-width: 100%; }
button, summary { font: inherit; }
header, main, footer { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
header { display: flex; justify-content: space-between; align-items: center; min-height: 76px; border-bottom: 1px solid var(--line); }
header a { color: inherit; text-decoration: none; font-size: .78rem; font-weight: 800; letter-spacing: .16em; }
header span { color: #8d9799; font-size: .75rem; }
header nav { display: flex; align-items: center; gap: 24px; }
header nav a { color: #aeb6b7; font-weight: 600; letter-spacing: 0; }
.language-toggle { flex: 0 0 auto; min-width: 42px; padding: 5px 10px; color: #d7dcdd; background: transparent; border: 1px solid #404a4d; border-radius: 999px; cursor: pointer; font-size: .75rem; white-space: nowrap; }
.language-toggle:hover { border-color: #758083; }
.language-toggle:focus-visible { outline: 2px solid var(--acid); outline-offset: 3px; }
main { padding: 76px 0 56px; }
.eyebrow { margin: 0 0 16px; color: var(--acid); font-size: .75rem; font-weight: 800; letter-spacing: .18em; }
h1 { max-width: 850px; margin: 0; font-size: clamp(3.2rem, 8vw, 7rem); line-height: .94; letter-spacing: -.07em; }
.intro { max-width: 570px; margin: 28px 0 0; color: #b9c0c1; font-size: 1.05rem; }
.products { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin: 64px 0 18px; }
.card { overflow: hidden; position: relative; min-width: 0; color: inherit; background: #191e20; border: 1px solid var(--line); border-radius: 24px; text-decoration: none; transition: border-color .2s, transform .2s; }
.card:hover { border-color: #4e595c; transform: translateY(-2px); }
.card:focus-visible { outline: 3px solid var(--card-accent); outline-offset: 4px; }
.card figure { position: relative; margin: 0; aspect-ratio: 16 / 10; overflow: hidden; background: #090b0c; }
.card figure::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 58%, rgba(10, 13, 14, .64)); pointer-events: none; }
.card figure img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.02); transition: transform .55s cubic-bezier(.2,.7,.2,1); }
.card:hover figure img { transform: scale(1.055); }
.card-content { padding: 28px 30px 32px; }
.card h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1; letter-spacing: -.045em; text-transform: uppercase; }
.card p { min-height: 52px; margin: 14px 0 24px; color: #aeb6b7; }
.card button { min-height: 46px; border: 1px solid #536064; background: transparent; color: white; border-radius: 999px; padding: 10px 20px; cursor: pointer; transition: background .2s, border-color .2s, color .2s; }
.card button:not(:disabled):hover { background: white; color: #101416; border-color: white; }
.card button:disabled { color: #7f888a; border-color: #343b3d; cursor: default; }
.detail-link { display: inline-flex; align-items: center; min-height: 46px; padding: 10px 20px; color: #101416; background: var(--card-accent); border-radius: 999px; text-decoration: none; font-weight: 750; }
.detail-link::after { content: "→"; margin-left: 10px; transition: transform .2s; }
.detail-link:hover::after { transform: translateX(4px); }
.card-arcember { --card-accent: var(--amber); }
.card-veltro { --card-accent: var(--acid); }
.card h2::after { content: ""; display: block; width: 42px; height: 4px; margin-top: 16px; border-radius: 4px; background: var(--card-accent); }
#message { min-height: 26px; color: #ffad91; }
.gallery { margin-top: 96px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 30px; }
.section-heading .eyebrow { margin-bottom: 7px; white-space: nowrap; }
.section-heading h2 { max-width: 620px; margin: 0; font-size: clamp(1.8rem, 4vw, 3.2rem); line-height: 1.08; letter-spacing: -.04em; text-align: right; }
.gallery-item { position: relative; overflow: hidden; margin-top: 22px; border: 1px solid var(--line); border-radius: 24px; background: #080a0b; }
.gallery-item img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }
.gallery-item div { position: absolute; left: 26px; right: 26px; bottom: 22px; display: flex; align-items: end; justify-content: space-between; gap: 20px; padding-top: 64px; background: linear-gradient(180deg, transparent, rgba(5, 7, 8, .72)); }
.gallery-item span { font-size: .8rem; font-weight: 800; letter-spacing: .15em; }
.gallery-item p { margin: 0; color: #d3d7d7; font-size: .9rem; }
.arcember-gallery span { color: var(--amber); }
.veltro-gallery span { color: var(--acid); }
.breadcrumbs { display: flex; gap: 10px; margin-bottom: 24px; color: #7f898b; font-size: .8rem; }
.breadcrumbs a { color: #c7cdce; text-decoration: none; }
.detail-main { padding-top: 32px; }
.detail-hero { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 28px; background: #090b0c; }
.detail-hero > img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }
.detail-intro { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 8px 40px; padding: 34px 38px 38px; }
.detail-intro .eyebrow { grid-column: 1 / -1; margin: 0; }
.detail-intro h1 { font-size: clamp(3rem, 7vw, 6rem); text-transform: uppercase; }
.detail-intro > p:not(.eyebrow, .detail-note) { grid-column: 1; max-width: 650px; margin: 10px 0 0; color: #b9c0c1; font-size: 1.05rem; }
.detail-actions { grid-column: 2; grid-row: 2 / 4; display: flex; flex-direction: column; align-items: stretch; gap: 10px; min-width: 220px; }
.detail-actions button, .detail-actions a { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 10px 20px; border-radius: 999px; font-weight: 750; text-decoration: none; }
.detail-actions button { border: 0; color: #101416; background: var(--detail-accent); cursor: pointer; }
.detail-actions button:disabled { color: #7f888a; background: #343b3d; cursor: default; }
.detail-actions a { color: #f4f5f2; border: 1px solid #566164; }
.detail-note { grid-column: 1; margin: 20px 0 0; color: #747e80; font-size: .75rem; }
.detail-arcember { --detail-accent: var(--amber); }
.detail-veltro { --detail-accent: var(--acid); }
.detail-main .eyebrow { color: var(--detail-accent); }
.feature-section { display: grid; grid-template-columns: .85fr 1.15fr; gap: 48px; margin-top: 88px; padding-top: 28px; border-top: 1px solid var(--line); }
.feature-section h2, .manual h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.08; letter-spacing: -.04em; }
.feature-section ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 28px; margin: 0; padding: 0; list-style: none; }
.feature-section li { padding: 14px 0; color: #c7cdce; border-bottom: 1px solid var(--line); }
.feature-section li::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 12px; background: var(--detail-accent); border-radius: 50%; }
.detail-gallery { margin-top: 96px; }
.detail-gallery-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.detail-gallery figure { overflow: hidden; margin: 0; border: 1px solid var(--line); border-radius: 20px; background: #080a0b; }
.detail-gallery figure.wide { grid-column: 1 / -1; }
.detail-gallery img { width: 100%; height: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.detail-gallery figure.wide img { aspect-ratio: 2.25 / 1; }
.detail-arcember .detail-gallery-grid { grid-template-columns: minmax(260px, .7fr) 1.5fr; }
.detail-arcember .detail-gallery figure:last-child img { aspect-ratio: 2 / 1; }
.manual { display: grid; grid-template-columns: .85fr 1.15fr; gap: 48px; margin-top: 96px; padding: 32px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.manual-heading > p:last-child { max-width: 420px; color: var(--muted); }
.manual-sections details { padding: 18px 0; }
.manual-sections details:first-child { padding-top: 0; }
.manual-sections summary { position: relative; padding-right: 36px; color: #eef0ef; font-weight: 700; list-style: none; }
.manual-sections summary::-webkit-details-marker { display: none; }
.manual-sections summary::after { content: "+"; position: absolute; right: 4px; color: var(--detail-accent); font-size: 1.2rem; font-weight: 400; }
.manual-sections details[open] summary::after { content: "−"; }
.manual-sections p { margin: 12px 36px 0 0; color: var(--muted); font-size: .92rem; }
#checkout-message { min-height: 28px; color: #ffad91; }
.guide { margin-top: 96px; border-top: 1px solid var(--line); padding-top: 28px; }
.guide h2, .faq h2 { font-size: 1.4rem; }
.guide ol { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; padding: 0; list-style: none; counter-reset: step; }
.guide li::before { counter-increment: step; content: "0" counter(step); display: block; margin: 12px 0; color: var(--acid); font-size: .75rem; font-weight: 800; }
.guide p, details p { color: var(--muted); font-size: .9rem; }
.faq { margin-top: 52px; }
details { border-bottom: 1px solid var(--line); padding: 18px 0; }
summary { cursor: pointer; }
aside { margin-top: 46px; padding: 18px; color: #8e9899; border: 1px dashed #394245; border-radius: 10px; font-size: .75rem; }
[hidden] { display: none !important; }
footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 24px; padding: 28px 0 38px; color: #737d7f; border-top: 1px solid var(--line); font-size: .75rem; }
footer a { color: #aeb6b7; text-decoration: none; }
footer a:hover, footer a:focus-visible { text-decoration: underline; }
@media (max-width: 720px) {
  header, main, footer { width: min(100% - 32px, 1180px); }
  header { min-height: 64px; }
  header nav { gap: 10px; }
  header nav a { display: none; }
  header span { max-width: 110px; text-align: right; line-height: 1.3; }
  main { padding-top: 48px; }
  h1 { font-size: clamp(2.8rem, 12vw, 4rem); line-height: .98; }
  .products, .guide ol { grid-template-columns: 1fr; }
  .products { margin-top: 46px; }
  .card figure { aspect-ratio: 1 / 1; }
  .section-heading { display: block; }
  .section-heading h2 { text-align: left; }
  .gallery { margin-top: 72px; }
  .gallery-item { border-radius: 16px; }
  .gallery-item img { aspect-ratio: 1.2 / 1; object-position: center; }
  .gallery-item div { position: static; padding: 16px 18px; background: none; align-items: start; flex-direction: column; gap: 2px; }
  .detail-hero { border-radius: 18px; }
  .detail-hero > img { aspect-ratio: 2 / 1; object-fit: contain; }
  .detail-intro { display: block; padding: 24px 20px 26px; }
  .detail-intro h1 { margin-top: 12px; }
  .detail-actions { margin-top: 24px; min-width: 0; }
  .detail-note { margin-top: 16px; }
  .feature-section, .manual { grid-template-columns: 1fr; gap: 24px; margin-top: 68px; }
  .feature-section ul { grid-template-columns: 1fr; }
  .detail-gallery { margin-top: 72px; }
  .detail-gallery-grid, .detail-arcember .detail-gallery-grid { grid-template-columns: 1fr; }
  .detail-gallery figure.wide { grid-column: auto; }
  .detail-gallery figure.wide img, .detail-arcember .detail-gallery figure:last-child img { aspect-ratio: 1.2 / 1; }
  .manual-heading > p:last-child { margin-bottom: 0; }
}
@media (prefers-reduced-motion: reduce) { .card figure img { transition: none; } }