:root {
  --lab-orange: #ff6b00;
  --lab-ink: #101010;
  --lab-cream: #f4f1eb;
  --lab-line: rgba(16, 16, 16, .12);
}

.product-hero {
  position: relative;
  overflow: hidden;
  padding: 150px 0 76px;
  background: #101010;
  color: #fff;
}
.product-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 78% 35%, rgba(255,107,0,.18), transparent 34%),
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: auto, 42px 42px, 42px 42px;
}
.product-shell { width: min(1240px, calc(100% - 40px)); margin: 0 auto; }
.product-hero__grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(390px, .82fr); gap: 60px; align-items: center; }
.product-kicker { display: inline-flex; align-items: center; gap: 10px; color: var(--lab-orange); font: 800 12px/1.2 Manrope, sans-serif; letter-spacing: .14em; text-transform: uppercase; }
.product-kicker::before { content: ""; width: 32px; height: 2px; background: currentColor; }
.product-hero h1 { max-width: 780px; margin: 24px 0 22px; font: 700 clamp(52px, 6.1vw, 92px)/.92 "Playfair Display", serif; letter-spacing: -.045em; }
.product-hero h1 em { color: var(--lab-orange); font-style: normal; }
.product-hero__lead { max-width: 720px; margin: 0; color: rgba(255,255,255,.72); font: 400 18px/1.7 Inter, sans-serif; }
.product-hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.product-button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; padding: 0 24px; border: 1px solid var(--lab-orange); background: var(--lab-orange); color: #fff; text-decoration: none; font: 800 12px/1 Manrope, sans-serif; letter-spacing: .06em; text-transform: uppercase; cursor: pointer; transition: .22s ease; }
.product-button:hover { transform: translateY(-2px); background: #fff; border-color: #fff; color: #111; }
.product-button--ghost { background: transparent; border-color: rgba(255,255,255,.42); }
.product-hero__visual { position: relative; min-height: 510px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.13); background: rgba(255,255,255,.035); overflow: hidden; }
.product-hero__visual::before { content: attr(data-mark); position: absolute; top: 22px; left: 22px; color: rgba(255,255,255,.45); font: 800 11px/1 Manrope, sans-serif; letter-spacing: .16em; }
.product-hero__visual img { width: 86%; height: 420px; object-fit: contain; filter: drop-shadow(0 28px 26px rgba(0,0,0,.35)); }
.product-hero__facts { position: absolute; right: 18px; bottom: 18px; left: 18px; display: grid; grid-template-columns: repeat(3,1fr); border: 1px solid rgba(255,255,255,.13); background: rgba(8,8,8,.8); backdrop-filter: blur(12px); }
.product-hero__facts div { padding: 15px; border-right: 1px solid rgba(255,255,255,.12); }
.product-hero__facts div:last-child { border-right: 0; }
.product-hero__facts strong { display: block; color: #fff; font: 800 18px/1.1 Manrope, sans-serif; }
.product-hero__facts span { display: block; margin-top: 5px; color: rgba(255,255,255,.55); font-size: 11px; line-height: 1.3; }

.product-section { padding: 92px 0; background: #fff; color: var(--lab-ink); }
.product-section--cream { background: var(--lab-cream); }
.product-section--dark { background: #101010; color: #fff; }
.product-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 440px); gap: 50px; align-items: end; margin-bottom: 40px; }
.product-heading h2 { margin: 12px 0 0; font: 700 clamp(38px, 5vw, 64px)/.98 "Playfair Display", serif; letter-spacing: -.035em; }
.product-heading p { margin: 0; color: #656565; font: 400 16px/1.65 Inter, sans-serif; }
.product-section--dark .product-heading p { color: rgba(255,255,255,.62); }

.profile-lab { display: grid; grid-template-columns: 300px minmax(0, 1fr); min-height: 620px; border: 1px solid var(--lab-line); background: #fff; box-shadow: 0 30px 80px rgba(20,20,20,.08); }
.profile-list { padding: 14px; border-right: 1px solid var(--lab-line); background: #f8f6f2; }
.profile-option { width: 100%; display: grid; grid-template-columns: 72px 1fr auto; gap: 12px; align-items: center; min-height: 86px; padding: 10px 12px; border: 1px solid transparent; background: transparent; color: #111; text-align: left; cursor: pointer; transition: .2s ease; }
.profile-option + .profile-option { margin-top: 6px; }
.profile-option img { width: 66px; height: 66px; object-fit: contain; }
.profile-option b { display: block; font: 800 15px/1.2 Manrope, sans-serif; }
.profile-option small { display: block; margin-top: 5px; color: #777; font-size: 11px; line-height: 1.3; }
.profile-option i { color: #aaa; font-size: 12px; }
.profile-option:hover, .profile-option.is-active { border-color: rgba(255,107,0,.34); background: #fff; transform: translateX(3px); }
.profile-option.is-active i { color: var(--lab-orange); }
.profile-stage { display: grid; grid-template-columns: minmax(320px, .95fr) minmax(300px, 1.05fr); min-width: 0; }
.profile-stage__media { position: relative; min-height: 100%; display: grid; place-items: center; padding: 38px; background: linear-gradient(145deg, #171717, #0b0b0b); overflow: hidden; }
.profile-stage__media::before { content: ""; position: absolute; inset: 0; background: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: 34px 34px; }
.profile-stage__media img { position: relative; width: 92%; height: 440px; object-fit: contain; filter: drop-shadow(0 24px 25px rgba(0,0,0,.35)); transition: opacity .18s ease, transform .25s ease; }
.profile-stage__media span { position: absolute; left: 24px; bottom: 22px; color: rgba(255,255,255,.5); font: 800 10px/1.3 Manrope, sans-serif; letter-spacing: .14em; }
.profile-stage__copy { padding: 44px; }
.profile-stage__copy h3 { margin: 15px 0 14px; font: 700 clamp(34px, 4vw, 54px)/1 "Playfair Display", serif; }
.profile-stage__copy > p { margin: 0 0 26px; color: #666; font-size: 16px; line-height: 1.65; }
.profile-specs { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--lab-line); border-left: 1px solid var(--lab-line); }
.profile-spec { min-height: 92px; padding: 16px; border-right: 1px solid var(--lab-line); border-bottom: 1px solid var(--lab-line); }
.profile-spec small { display: block; color: #8a8a8a; font: 700 10px/1.2 Manrope,sans-serif; letter-spacing: .09em; text-transform: uppercase; }
.profile-spec strong { display: block; margin-top: 8px; font: 800 18px/1.25 Manrope,sans-serif; }
.profile-note { margin-top: 22px; padding: 16px 18px; border-left: 3px solid var(--lab-orange); background: rgba(255,107,0,.07); color: #333; font-size: 14px; line-height: 1.55; }

.finish-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.finish-card { position: relative; min-height: 240px; padding: 25px; border: 1px solid rgba(255,255,255,.13); background: rgba(255,255,255,.035); overflow: hidden; }
.finish-card::after { content: ""; position: absolute; right: -36px; bottom: -36px; width: 100px; height: 100px; border: 22px solid rgba(255,107,0,.1); border-radius: 50%; }
.finish-card span { color: var(--lab-orange); font: 800 11px/1 Manrope,sans-serif; letter-spacing: .12em; }
.finish-card h3 { margin: 26px 0 12px; font: 700 26px/1.08 "Playfair Display",serif; }
.finish-card p { margin: 0; color: rgba(255,255,255,.6); font-size: 14px; line-height: 1.6; }
.finish-link { margin-top: 28px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 26px; border: 1px solid rgba(255,255,255,.15); color: #fff; text-decoration: none; transition: .2s ease; }
.finish-link:hover { border-color: var(--lab-orange); background: rgba(255,107,0,.08); }
.finish-link strong { font: 700 19px/1.2 Manrope,sans-serif; }
.finish-link i { color: var(--lab-orange); }

.layout-studio { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr); gap: 36px; align-items: stretch; }
.layout-demo { position: relative; min-height: 410px; overflow: hidden; border: 1px solid var(--lab-line); background: linear-gradient(#cfd9df 0 47%, #8ea477 47% 100%); }
.layout-demo::before { content: ""; position: absolute; left: 6%; right: 6%; bottom: 12%; height: 48%; background: repeating-linear-gradient(90deg, #242424 0 7%, transparent 7% 11%); border-top: 12px solid #242424; border-bottom: 12px solid #242424; transition: .25s ease; }
.layout-demo.is-double::before { background: repeating-linear-gradient(90deg, #242424 0 8%, transparent 8% 12%, #242424 12% 20%, transparent 20% 24%); }
.layout-demo::after { content: "УЛИЦА"; position: absolute; left: 20px; bottom: 18px; padding: 8px 10px; background: #111; color: #fff; font: 800 10px/1 Manrope,sans-serif; letter-spacing: .12em; }
.layout-controls { padding: 34px; border: 1px solid var(--lab-line); background: #fff; }
.layout-controls h3 { margin: 0 0 12px; font: 700 34px/1.05 "Playfair Display",serif; }
.layout-controls p { margin: 0 0 24px; color: #666; line-height: 1.6; }
.layout-switch { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.layout-switch button { min-height: 50px; border: 1px solid var(--lab-line); background: #f6f3ee; color: #111; font-weight: 800; cursor: pointer; }
.layout-switch button.is-active { border-color: var(--lab-orange); background: var(--lab-orange); color: #fff; }
.layout-result { margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--lab-line); color: #333; font-size: 14px; line-height: 1.6; }

.order-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: rgba(255,255,255,.18); }
.order-card { min-height: 220px; padding: 26px; background: #171717; }
.order-card span { color: var(--lab-orange); font: 800 34px/1 "Playfair Display",serif; }
.order-card h3 { margin: 32px 0 10px; font-size: 19px; }
.order-card p { margin: 0; color: rgba(255,255,255,.58); font-size: 14px; line-height: 1.55; }
.product-cta { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 30px; align-items: center; margin-top: 34px; padding: 34px; background: var(--lab-orange); color: #fff; }
.product-cta h3 { margin: 0 0 7px; font: 700 32px/1.05 "Playfair Display",serif; }
.product-cta p { margin: 0; color: rgba(255,255,255,.78); }
.product-cta .product-button { background: #111; border-color: #111; }
.product-cta .product-button:hover { background: #fff; color: #111; border-color: #fff; }

@media (min-width: 1241px) {
  .arch-nav .nav-container { max-width: min(1540px, calc(100% - 32px)); }
  .arch-nav .nav-links { gap: clamp(13px, 1.35vw, 24px); }
  .arch-nav .nav-label { font-size: 13px; }
  .arch-nav .nav-cta { padding-inline: 17px; }
}

@media (max-width: 1050px) {
  .product-hero__grid, .product-heading, .profile-stage, .layout-studio { grid-template-columns: 1fr; }
  .product-hero__visual { min-height: 430px; }
  .profile-lab { grid-template-columns: 240px minmax(0,1fr); }
  .profile-stage__media { min-height: 430px; }
  .finish-grid, .order-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .product-hero { padding: 62px 0 34px; }
  .product-shell { width: min(100% - 24px, 1240px); }
  .product-hero__grid { gap: 30px; }
  .product-hero h1 { font-size: clamp(43px, 13vw, 64px); }
  .product-hero__lead { font-size: 16px; }
  .product-hero__visual { min-height: 370px; }
  .product-hero__visual img { height: 290px; }
  .product-hero__facts { grid-template-columns: 1fr 1fr 1fr; }
  .product-hero__facts div { padding: 11px 8px; }
  .product-hero__facts strong { font-size: 14px; }
  .product-section { padding: 58px 0; }
  .product-heading { gap: 18px; margin-bottom: 26px; }
  .product-heading h2 { font-size: 40px; }
  .profile-lab { display: block; min-height: 0; }
  .profile-list { display: flex; gap: 8px; overflow-x: auto; padding: 10px; border-right: 0; border-bottom: 1px solid var(--lab-line); scroll-snap-type: x mandatory; }
  .profile-option { min-width: 198px; scroll-snap-align: start; }
  .profile-option + .profile-option { margin-top: 0; }
  .profile-option:hover, .profile-option.is-active { transform: none; }
  .profile-stage__media { min-height: 350px; }
  .profile-stage__media img { height: 290px; }
  .profile-stage__copy { padding: 26px 20px; }
  .profile-stage__copy h3 { font-size: 38px; }
  .profile-spec { min-height: 86px; padding: 13px; }
  .profile-spec strong { font-size: 15px; }
  .finish-grid, .order-grid { grid-template-columns: 1fr; }
  .finish-card { min-height: 195px; }
  .layout-demo { min-height: 330px; }
  .layout-controls { padding: 24px 20px; }
  .product-cta { grid-template-columns: 1fr; padding: 26px 20px; }
  .product-cta .product-button { width: 100%; }
}