:root {
  --white: #ffffff;
  --paper: #f7f7f5;
  --black: #0a0a0a;
  --black-soft: #161616;
  --graphite: #272727;
  --text: #181818;
  --muted: #666666;
  --line: rgba(10, 10, 10, 0.12);
  --line-strong: rgba(10, 10, 10, 0.24);
  --gold: #b88a2e;
  --gold-bright: #d7ad4d;
  --gold-pale: #f0e4c3;
  --page: min(1440px, calc(100vw - 72px));
  --radius: 24px;
  --shadow: 0 34px 80px rgba(0,0,0,.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 18px;
  line-height: 1.55;
  background: var(--white);
  overflow-x: hidden;
}
body::selection { color: #fff; background: var(--black); }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }

.page_noise {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: .025;
  background-image: radial-gradient(circle at 1px 1px, #000 1px, transparent 0);
  background-size: 8px 8px;
}

.section_anchor { scroll-margin-top: 96px; }

.site_header {
  position: fixed;
  z-index: 100;
  top: 18px;
  left: 50%;
  width: min(1440px, calc(100vw - 36px));
  min-height: 72px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px 12px 20px;
  background: rgba(255,255,255,.82);
  border: 1px solid rgba(10,10,10,.10);
  border-radius: 18px;
  backdrop-filter: blur(18px);
  transition: box-shadow .25s ease, background .25s ease, top .25s ease;
}
.site_header.scrolled { top: 10px; background: rgba(255,255,255,.94); box-shadow: 0 16px 50px rgba(0,0,0,.08); }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand_mark { display: flex; width: 44px; height: 44px; align-items: center; justify-content: center; flex: 0 0 44px; }
.brand_mark img { display: block; width: 100%; height: 100%; object-fit: contain; }
.brand_name { font-size: 20px; font-weight: 900; letter-spacing: -.03em; }
.main_nav { display: flex; align-items: center; gap: 6px; }
.main_nav a { padding: 12px 14px; font-size: 15px; font-weight: 800; color: #353535; border-radius: 10px; }
.main_nav a:hover { background: #f2f2f0; }
.main_nav .nav_cta { display: inline-flex; align-items: center; gap: 10px; margin-left: 8px; padding: 12px 16px; color: #fff; background: var(--black); }
.main_nav .nav_cta:hover { background: var(--gold); }
.menu_button { display: none; width: 46px; height: 46px; place-items: center; padding: 0; background: #fff; border: 1px solid var(--line); border-radius: 11px; }
.menu_button span { display: block; width: 20px; height: 2px; margin: 3px auto; background: var(--black); }

.hero {
  position: relative;
  width: var(--page);
  min-height: 980px;
  margin: 0 auto;
  padding: 170px 0 48px;
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 58px;
  align-items: center;
}
.hero_backdrop { position: absolute; inset: 98px -90px 0; z-index: -1; overflow: hidden; pointer-events: none; }
.shape { position: absolute; display: block; }
.shape_ring { width: 480px; height: 480px; top: 34px; right: -120px; border: 1px solid rgba(10,10,10,.10); border-radius: 50%; }
.shape_ring::after { content: ""; position: absolute; inset: 86px; border: 1px solid rgba(184,138,46,.30); border-radius: inherit; }
.shape_square { width: 260px; height: 260px; right: 14%; bottom: 75px; border: 1px solid rgba(10,10,10,.09); transform: rotate(18deg); }
.shape_grid { width: 300px; height: 220px; left: -40px; bottom: 140px; background-image: linear-gradient(rgba(10,10,10,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(10,10,10,.055) 1px, transparent 1px); background-size: 28px 28px; mask-image: linear-gradient(to right, #000, transparent); }
.shape_line_a { width: 1px; height: 360px; left: 38%; top: 8%; background: linear-gradient(to bottom, transparent, rgba(10,10,10,.18), transparent); transform: rotate(28deg); }
.shape_line_b { width: 460px; height: 1px; left: 5%; top: 38%; background: linear-gradient(to right, transparent, rgba(184,138,46,.35), transparent); transform: rotate(-16deg); }
.shape_dot_a, .shape_dot_b { width: 12px; height: 12px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 13px rgba(184,138,46,.10); }
.shape_dot_a { left: 47%; top: 20%; }.shape_dot_b { right: 7%; bottom: 18%; }
.shape_cross { width: 36px; height: 36px; left: 2%; top: 19%; }
.shape_cross::before, .shape_cross::after { content: ""; position: absolute; background: var(--black); }
.shape_cross::before { left: 17px; top: 0; width: 2px; height: 36px; }.shape_cross::after { left: 0; top: 17px; width: 36px; height: 2px; }

.kicker, .section_label { display: flex; align-items: center; gap: 12px; color: #5b5b5b; font-size: 15px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.kicker span { width: 36px; height: 2px; background: var(--gold); }
.hero_copy h1 { max-width: 850px; margin: 24px 0 30px; color: var(--black); font-size: clamp(64px, 6.7vw, 108px); line-height: .94; letter-spacing: -.065em; font-weight: 800; }
.hero_copy h1 strong { display: block; color: var(--gold); font-weight: 800; }
.hero_copy > p { max-width: 760px; margin: 0; color: #4e4e4e; font-size: clamp(19px, 1.6vw, 24px); line-height: 1.55; }
.hero_actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.button { display: inline-flex; min-height: 58px; align-items: center; justify-content: center; gap: 18px; padding: 0 22px; font-size: 16px; font-weight: 900; border-radius: 14px; transition: transform .18s ease, background .18s ease, color .18s ease, box-shadow .18s ease; }
.button:hover { transform: translateY(-2px); }
.button_dark { color: #fff; background: var(--black); box-shadow: 0 18px 40px rgba(0,0,0,.13); }
.button_dark:hover { background: var(--gold); }
.button_light { background: #fff; border: 1px solid var(--line-strong); }
.button_light:hover { box-shadow: 0 14px 30px rgba(0,0,0,.07); }

.hero_system { position: relative; min-height: 650px; }
.system_core { position: absolute; z-index: 4; left: 50%; top: 50%; width: min(440px, 86%); min-height: 370px; transform: translate(-50%, -50%); padding: 28px; color: #fff; background: var(--black); border-radius: 28px; box-shadow: var(--shadow); }
.core_head { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; }
.core_head > span { color: var(--gold-bright); font-size: 20px; font-weight: 900; }
.core_head small { font-size: 15px; font-weight: 900; letter-spacing: .12em; }
.core_head i { width: 11px; height: 11px; background: var(--gold-bright); border-radius: 50%; box-shadow: 0 0 0 7px rgba(215,173,77,.15); }
.core_title { margin-top: 54px; font-size: clamp(42px, 4vw, 64px); line-height: .98; letter-spacing: -.055em; font-weight: 850; }
.core_modules { display: grid; margin-top: 46px; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.17); }
.core_modules div { padding: 18px 10px 0 0; border-right: 1px solid rgba(255,255,255,.13); }
.core_modules div:last-child { border-right: 0; padding-left: 14px; }
.core_modules div:nth-child(2) { padding-left: 14px; }
.core_modules b { display: block; color: var(--gold-bright); font-size: 14px; letter-spacing: .08em; }
.core_modules span { display: block; margin-top: 4px; font-size: 15px; font-weight: 800; }
.system_orbit { position: absolute; z-index: 1; border: 1px solid rgba(10,10,10,.14); border-radius: 50%; }
.orbit_a { width: 600px; height: 600px; left: 50%; top: 50%; transform: translate(-50%, -50%); }
.orbit_b { width: 480px; height: 480px; left: 50%; top: 50%; transform: translate(-50%, -50%); border-style: dashed; border-color: rgba(184,138,46,.37); }
.system_corner { position: absolute; z-index: 1; width: 120px; height: 120px; }
.corner_a { left: 5%; top: 8%; border-left: 2px solid var(--gold); border-top: 2px solid var(--gold); }
.corner_b { right: 3%; bottom: 7%; border-right: 2px solid var(--black); border-bottom: 2px solid var(--black); }
.system_card { position: absolute; z-index: 6; padding: 17px 18px; background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 18px 45px rgba(0,0,0,.10); }
.system_card > span { color: #606060; font-size: 15px; font-weight: 900; letter-spacing: .12em; }
.card_data { width: 190px; left: 0; top: 16%; }
.card_data b { float: right; color: var(--gold); font-size: 14px; }
.data_bars { display: grid; gap: 7px; margin-top: 18px; }
.data_bars i { display: block; height: 8px; background: #ececeb; border-radius: 99px; overflow: hidden; }
.data_bars i::after { content: ""; display: block; height: 100%; width: var(--w, 72%); background: var(--black); border-radius: inherit; }
.data_bars i:nth-child(2)::after { --w: 48%; background: var(--gold); }.data_bars i:nth-child(3)::after { --w: 88%; }.data_bars i:nth-child(4)::after { --w: 60%; background: var(--gold); }
.card_logic { width: 190px; right: 0; bottom: 17%; }
.card_logic strong { display: block; margin: 9px 0 3px; font-size: 26px; letter-spacing: -.04em; }
.card_logic small { color: #666; font-size: 15px; font-weight: 700; }
.card_status { right: 4%; top: 14%; display: flex; align-items: center; gap: 9px; }
.card_status i { width: 9px; height: 9px; background: var(--gold); border-radius: 50%; }
.card_status span { color: var(--black); font-size: 14px; }

.hero_footer { grid-column: 1 / -1; display: grid; margin-top: 20px; padding-top: 34px; grid-template-columns: repeat(3, 1fr) 1.5fr; gap: 0; border-top: 1px solid var(--line); }
.hero_footer > div { display: flex; align-items: center; gap: 13px; min-height: 58px; padding-right: 28px; border-right: 1px solid var(--line); }
.hero_footer > div + div { padding-left: 28px; }
.hero_footer strong { color: var(--gold); font-size: 32px; line-height: 1; letter-spacing: -.04em; }
.hero_footer span { color: #4d4d4d; font-size: 14px; font-weight: 850; text-transform: uppercase; letter-spacing: .07em; }
.hero_footer p { margin: 0; padding-left: 32px; color: #4d4d4d; font-size: 15px; font-weight: 750; line-height: 1.5; }

.product_intro { width: var(--page); margin: 0 auto; padding: 120px 0 54px; }
.section_label span { display: grid; width: 36px; height: 36px; place-items: center; color: var(--gold); font-size: 12px; background: #fff; border: 1px solid var(--line-strong); border-radius: 50%; }
.section_title { display: grid; margin-top: 28px; grid-template-columns: 1.3fr .7fr; gap: 70px; align-items: end; }
.section_title h2, .architecture_copy h2, .access_heading h2, .contact_copy h2 { margin: 0; color: var(--black); font-size: clamp(54px, 5.5vw, 88px); line-height: .98; letter-spacing: -.06em; font-weight: 780; }
.section_title h2 strong, .access_heading h2 strong, .contact_copy h2 strong { color: var(--gold); }
.section_title p { margin: 0 0 7px; color: #4f4f4f; font-size: 19px; line-height: 1.62; }

.products_grid { width: var(--page); margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; padding-bottom: 120px; }
.product_panel { position: relative; min-height: 590px; display: flex; flex-direction: column; padding: 30px; overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: 26px; transition: transform .24s ease, box-shadow .24s ease; }
.product_panel:hover { transform: translateY(-5px); box-shadow: 0 28px 70px rgba(0,0,0,.08); }
.product_panel_dark { color: #fff; background: var(--black); border-color: var(--black); }
.product_top { display: flex; align-items: center; justify-content: space-between; }
.product_number { font-size: 15px; font-weight: 900; letter-spacing: .12em; }
.product_state { display: inline-flex; align-items: center; gap: 8px; padding: 8px 11px; font-size: 15px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; border: 1px solid var(--line); border-radius: 99px; }
.product_panel_dark .product_state { border-color: rgba(255,255,255,.2); }
.product_state i { width: 7px; height: 7px; border-radius: 50%; background: #777; }
.state_live i { background: var(--gold); box-shadow: 0 0 0 4px rgba(184,138,46,.14); }
.product_brand_row { display: flex; align-items: center; gap: 18px; margin-top: 66px; }
.product_logo { display: grid; width: 76px; height: 76px; flex: 0 0 76px; place-items: center; border-radius: 20px; }
.product_logo_vesta { background: #0c1820; }
.product_logo_vesta img { width: 70%; height: 70%; object-fit: contain; filter: saturate(.3) brightness(1.35); }
.product_logo_letter { color: var(--gold-bright); font-size: 34px; font-weight: 900; background: #f3f3f0; }
.product_panel_dark .product_logo_letter { background: #242424; }
.product_brand_row h3 { margin: 0; font-size: 46px; line-height: 1; letter-spacing: -.05em; }
.product_brand_row p { margin: 8px 0 0; color: #666; font-size: 14px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.product_panel_dark .product_brand_row p { color: #aaa; }
.product_text { margin: 34px 0 0; color: #4e4e4e; font-size: 17px; line-height: 1.65; }
.product_panel_dark .product_text { color: #d4d4d4; }
.product_tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.product_tags span { padding: 9px 11px; font-size: 14px; font-weight: 800; background: #f5f5f3; border: 1px solid rgba(0,0,0,.06); border-radius: 9px; }
.product_panel_dark .product_tags span { color: #ddd; background: #1d1d1d; border-color: rgba(255,255,255,.08); }
.product_bottom { position: relative; display: flex; align-items: flex-end; justify-content: space-between; margin-top: auto; padding-top: 44px; }
.product_action { display: inline-flex; align-items: center; gap: 14px; padding: 0; color: var(--black); font-size: 16px; font-weight: 900; background: transparent; border: 0; cursor: pointer; }
.product_panel_dark .product_action { color: #fff; }
.product_action span { display: grid; width: 42px; height: 42px; place-items: center; color: #fff; background: var(--black); border-radius: 12px; transition: transform .18s ease, background .18s ease; }
.product_panel_dark .product_action span { color: var(--black); background: var(--gold-bright); }
.product_action:hover span { transform: translate(3px,-3px); background: var(--gold); }
.product_action_disabled { color: #9c9c9c; cursor: default; }
.product_action_disabled span, .product_action_disabled:hover span { transform: none; background: #d7d7d5; }
.product_panel_dark .product_action_disabled { color: #777; }
.product_panel_dark .product_action_disabled span { color: #555; background: #2e2e2e; }
.panel_geometry { position: relative; width: 90px; height: 72px; opacity: .8; }
.panel_geometry i { position: absolute; right: 0; bottom: 0; width: 66px; height: 66px; border: 1px solid var(--line-strong); transform: rotate(18deg); }
.panel_geometry b { position: absolute; right: 42px; bottom: 28px; width: 10px; height: 10px; background: var(--gold); border-radius: 50%; }
.panel_geometry span { position: absolute; right: 9px; top: 0; width: 1px; height: 62px; background: var(--black); transform: rotate(-25deg); }
.geometry_dark i { border-color: rgba(255,255,255,.24); }.geometry_dark span { background: #fff; }

.architecture { position: relative; width: 100%; min-height: 820px; display: grid; grid-template-columns: 1fr 1fr; color: #fff; background: var(--black); overflow: hidden; }
.architecture_visual { position: relative; min-height: 820px; border-right: 1px solid rgba(255,255,255,.10); overflow: hidden; }
.blueprint_grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.065) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.065) 1px, transparent 1px); background-size: 48px 48px; }
.blueprint_circle { position: absolute; width: 430px; height: 430px; left: 50%; top: 50%; transform: translate(-50%, -50%); border: 1px solid rgba(215,173,77,.65); border-radius: 50%; }
.blueprint_circle::before, .blueprint_circle::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(255,255,255,.18); }
.blueprint_circle::before { inset: 70px; }.blueprint_circle::after { inset: 136px; }
.blueprint_square { position: absolute; width: 315px; height: 315px; left: 50%; top: 50%; transform: translate(-50%, -50%) rotate(20deg); border: 1px solid rgba(255,255,255,.28); }
.blueprint_axis { position: absolute; background: rgba(255,255,255,.22); }
.axis_x { left: 10%; right: 10%; top: 50%; height: 1px; }.axis_y { top: 10%; bottom: 10%; left: 50%; width: 1px; }
.blueprint_node { position: absolute; width: 16px; height: 16px; background: var(--gold-bright); border-radius: 50%; box-shadow: 0 0 0 9px rgba(215,173,77,.12); }
.node_a { left: 22%; top: 27%; }.node_b { right: 23%; top: 33%; }.node_c { left: 40%; bottom: 20%; }
.blueprint_label { position: absolute; padding: 7px 9px; color: #111; font-size: 14px; font-weight: 900; letter-spacing: .1em; background: var(--gold-bright); }
.label_a { left: 14%; top: 18%; }.label_b { right: 15%; top: 48%; }.label_c { left: 30%; bottom: 13%; }
.architecture_copy { display: flex; flex-direction: column; justify-content: center; padding: 86px max(50px, 8vw); }
.section_label_light { color: #aaa; }.section_label_light span { color: var(--gold-bright); background: transparent; border-color: rgba(255,255,255,.25); }
.architecture_copy h2 { margin-top: 28px; color: #fff; }
.architecture_copy h2 strong { color: var(--gold-bright); }
.architecture_copy > p { max-width: 700px; margin: 28px 0 0; color: #c8c8c8; font-size: 19px; line-height: 1.65; }
.method_steps { display: grid; margin-top: 52px; gap: 0; border-top: 1px solid rgba(255,255,255,.16); }
.method_steps > div { display: grid; grid-template-columns: 54px 130px 1fr; gap: 18px; align-items: start; padding: 22px 0; border-bottom: 1px solid rgba(255,255,255,.16); }
.method_steps b { color: var(--gold-bright); font-size: 14px; letter-spacing: .08em; }
.method_steps span { font-size: 18px; font-weight: 900; }
.method_steps p { margin: 0; color: #aaa; font-size: 15px; line-height: 1.55; }

.access_section { width: var(--page); margin: 0 auto; padding: 120px 0; }
.access_heading { display: grid; grid-template-columns: .78fr 1.22fr; gap: 60px; align-items: end; }
.access_heading .section_label { align-self: start; }
.access_heading h2 { grid-column: 2; }
.access_heading > p { grid-column: 2; max-width: 760px; margin: 18px 0 0; color: #555; font-size: 18px; }
.access_grid { display: grid; margin-top: 52px; gap: 10px; }
.access_card { display: grid; width: 100%; min-height: 112px; grid-template-columns: 80px 1fr auto 54px; gap: 20px; align-items: center; padding: 18px 22px; color: #7d7d7d; text-align: left; background: #fafaf8; border: 1px solid var(--line); border-radius: 18px; cursor: default; }
a.access_card { font: inherit; }
.access_card_live, .access_card.enabled { color: var(--black); background: #fff; cursor: pointer; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.access_card_live:hover, .access_card.enabled:hover { transform: translateX(5px); border-color: rgba(184,138,46,.45); box-shadow: 0 16px 38px rgba(0,0,0,.06); }
.access_index { display: grid; width: 54px; height: 54px; place-items: center; font-size: 13px; font-weight: 900; background: #efefec; border-radius: 14px; }
.access_card_live .access_index, .access_card.enabled .access_index { color: #fff; background: var(--black); }
.access_name { display: flex; flex-direction: column; gap: 4px; }
.access_name strong { font-size: 25px; letter-spacing: -.03em; }
.access_name span { font-size: 15px; font-weight: 700; }
.access_badge { padding: 8px 11px; font-size: 14px; font-weight: 900; letter-spacing: .09em; border: 1px solid currentColor; border-radius: 99px; }
.access_card_live .access_badge, .access_card.enabled .access_badge { color: var(--gold); }
.access_arrow { font-size: 24px; }

.manifesto { position: relative; width: var(--page); min-height: 520px; margin: 0 auto 120px; padding: 62px; display: flex; align-items: center; overflow: hidden; color: #fff; background: var(--black); border-radius: 30px; }
.manifesto_mark { position: absolute; right: 46px; top: 32px; width: 94px; height: 94px; }
.manifesto_mark img { display: block; width: 100%; height: 100%; object-fit: contain; filter: drop-shadow(0 10px 22px rgba(0,0,0,.25)); }
.manifesto p { position: relative; z-index: 2; margin: 0; font-size: clamp(54px, 6vw, 98px); line-height: .96; letter-spacing: -.06em; font-weight: 700; }
.manifesto p strong { color: var(--gold-bright); }
.manifesto_shapes i { position: absolute; display: block; border: 1px solid rgba(255,255,255,.14); }
.manifesto_shapes i:nth-child(1) { width: 380px; height: 380px; right: 7%; bottom: -190px; border-radius: 50%; }
.manifesto_shapes i:nth-child(2) { width: 260px; height: 260px; right: 16%; top: -110px; transform: rotate(24deg); }
.manifesto_shapes i:nth-child(3) { width: 520px; height: 1px; right: -40px; top: 46%; background: rgba(215,173,77,.55); border: 0; transform: rotate(-30deg); }
.manifesto_shapes i:nth-child(4) { width: 16px; height: 16px; right: 24%; top: 43%; background: var(--gold-bright); border: 0; border-radius: 50%; }
.manifesto_shapes i:nth-child(5) { width: 110px; height: 110px; right: 5%; top: 24%; border-color: rgba(215,173,77,.42); transform: rotate(45deg); }

.contact_section { width: var(--page); margin: 0 auto; padding: 20px 0 120px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 80px; align-items: end; }
.contact_copy h2 { margin-top: 30px; }
.contact_action { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; padding-bottom: 6px; }
.contact_button { display: inline-flex; min-height: 72px; align-items: center; gap: 28px; padding: 0 25px; color: #fff; font-size: 18px; font-weight: 900; background: var(--black); border-radius: 16px; transition: transform .18s ease, background .18s ease; }
.contact_button:hover { transform: translateY(-3px); background: var(--gold); }
.contact_button.inactive { opacity: .45; cursor: default; }
.contact_action p { margin: 0; color: #666; font-size: 15px; font-weight: 700; }

.site_footer { width: var(--page); margin: 0 auto; min-height: 120px; display: grid; grid-template-columns: 1fr 1fr auto; gap: 30px; align-items: center; border-top: 1px solid var(--line); }
.footer_brand { display: flex; align-items: center; gap: 12px; }
.footer_brand span { display: grid; width: 40px; height: 40px; place-items: center; }
.footer_brand span img { display: block; width: 100%; height: 100%; object-fit: contain; }
.footer_brand strong { font-size: 18px; }
.site_footer > p, .footer_meta { color: #666; font-size: 15px; font-weight: 700; }
.footer_meta { display: flex; gap: 20px; }
.footer_meta a { color: var(--black); font-weight: 900; }


/* OasysCode brand icon + geometria diffusa sulle superfici bianche */
.hero,
.product_intro,
.products_grid,
.access_section,
.contact_section,
.site_footer {
  position: relative;
  isolation: isolate;
}

.hero > :not(.hero_backdrop),
.product_intro > *,
.products_grid > *,
.access_section > *,
.contact_section > *,
.site_footer > * {
  position: relative;
  z-index: 2;
}

.hero::before,
.product_intro::before,
.products_grid::before,
.access_section::before,
.contact_section::before,
.site_footer::before,
.hero::after,
.product_intro::after,
.products_grid::after,
.access_section::after,
.contact_section::after,
.site_footer::after {
  content: "";
  position: absolute;
  z-index: 0;
  pointer-events: none;
}

.hero_backdrop { z-index: 1; }

.hero::before {
  inset: 108px -7vw 30px;
  background:
    radial-gradient(circle at 7% 18%, transparent 0 76px, rgba(10,10,10,.085) 77px 78px, transparent 79px),
    radial-gradient(circle at 89% 72%, transparent 0 128px, rgba(184,138,46,.14) 129px 130px, transparent 131px),
    linear-gradient(27deg, transparent 0 24%, rgba(10,10,10,.055) 24.1% 24.25%, transparent 24.35% 100%),
    linear-gradient(118deg, transparent 0 63%, rgba(184,138,46,.13) 63.1% 63.25%, transparent 63.35% 100%);
}

.hero::after {
  width: 180px;
  height: 180px;
  left: 44%;
  top: 150px;
  border: 1px solid rgba(10,10,10,.09);
  transform: rotate(33deg);
  box-shadow:
    420px 340px 0 -55px rgba(255,255,255,0),
    420px 340px 0 -54px rgba(184,138,46,.15);
}

.product_intro::before {
  inset: 34px -10vw -12px;
  background:
    radial-gradient(circle at 92% 34%, transparent 0 118px, rgba(10,10,10,.09) 119px 120px, transparent 121px),
    radial-gradient(circle at 92% 34%, transparent 0 72px, rgba(184,138,46,.18) 73px 74px, transparent 75px),
    linear-gradient(90deg, transparent 0 8%, rgba(10,10,10,.045) 8.1% 8.2%, transparent 8.3% 78%, rgba(184,138,46,.10) 78.1% 78.2%, transparent 78.3%);
}

.product_intro::after {
  width: 118px;
  height: 118px;
  right: 8%;
  bottom: 22px;
  border: 1px solid rgba(184,138,46,.21);
  transform: rotate(19deg);
}

.products_grid::before {
  inset: -34px -7vw 32px;
  opacity: .9;
  background-image:
    linear-gradient(rgba(10,10,10,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,10,10,.035) 1px, transparent 1px),
    radial-gradient(circle at 16% 78%, rgba(184,138,46,.13) 0 4px, transparent 5px),
    radial-gradient(circle at 77% 22%, rgba(10,10,10,.10) 0 3px, transparent 4px);
  background-size: 46px 46px, 46px 46px, auto, auto;
  mask-image: linear-gradient(to bottom, transparent 0, #000 12%, #000 88%, transparent 100%);
}

.products_grid::after {
  width: 330px;
  height: 330px;
  left: -150px;
  top: 120px;
  border: 1px solid rgba(10,10,10,.075);
  border-radius: 50%;
  box-shadow:
    58vw 180px 0 -98px rgba(255,255,255,0),
    58vw 180px 0 -97px rgba(184,138,46,.16);
}

.access_section::before {
  inset: 24px -8vw;
  background:
    radial-gradient(circle at 10% 38%, transparent 0 96px, rgba(184,138,46,.16) 97px 98px, transparent 99px),
    radial-gradient(circle at 84% 70%, transparent 0 148px, rgba(10,10,10,.075) 149px 150px, transparent 151px),
    linear-gradient(145deg, transparent 0 29%, rgba(10,10,10,.055) 29.1% 29.25%, transparent 29.35%),
    linear-gradient(42deg, transparent 0 71%, rgba(184,138,46,.14) 71.1% 71.25%, transparent 71.35%);
}

.access_section::after {
  width: 150px;
  height: 150px;
  right: 5%;
  top: 80px;
  border: 1px solid rgba(10,10,10,.09);
  transform: rotate(45deg);
}

.contact_section::before {
  inset: -54px -8vw 0;
  background:
    radial-gradient(circle at 86% 32%, transparent 0 100px, rgba(184,138,46,.18) 101px 102px, transparent 103px),
    linear-gradient(90deg, transparent 0 13%, rgba(10,10,10,.05) 13.1% 13.2%, transparent 13.3%),
    linear-gradient(24deg, transparent 0 48%, rgba(10,10,10,.055) 48.1% 48.25%, transparent 48.35%);
}

.contact_section::after {
  width: 72px;
  height: 72px;
  left: 44%;
  top: 12px;
  border: 1px solid rgba(184,138,46,.26);
  border-radius: 50%;
  box-shadow:
    0 0 0 28px rgba(184,138,46,.035),
    180px 110px 0 -20px rgba(255,255,255,0),
    180px 110px 0 -19px rgba(10,10,10,.08);
}

.site_footer::before {
  inset: 0 -8vw;
  background:
    linear-gradient(118deg, transparent 0 18%, rgba(184,138,46,.10) 18.1% 18.2%, transparent 18.3%),
    linear-gradient(58deg, transparent 0 82%, rgba(10,10,10,.045) 82.1% 82.2%, transparent 82.3%);
}

.site_footer::after {
  width: 34px;
  height: 34px;
  right: 18%;
  top: 18px;
  border: 1px solid rgba(10,10,10,.10);
  transform: rotate(32deg);
}

/* Icona OasysCode scelta come riferimento principale */
.brand_mark {
  width: 50px;
  height: 50px;
  flex-basis: 50px;
}
.brand_mark img,
.footer_brand span img,
.hero_brand_emblem img,
.core_brand_icon img,
.section_brand_stamp img,
.contact_brand_stamp img,
.manifesto_mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.hero_brand_emblem {
  position: absolute;
  z-index: 6;
  top: 126px;
  left: 51%;
  width: 86px;
  height: 86px;
  transform: translateX(-50%) rotate(-6deg);
  filter: drop-shadow(0 18px 34px rgba(0,0,0,.14));
}

.core_brand_icon {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  overflow: hidden;
  border-radius: 13px;
  box-shadow: 0 9px 24px rgba(0,0,0,.28);
}

.core_head {
  grid-template-columns: 44px 1fr auto;
}

.section_brand_stamp,
.contact_brand_stamp {
  width: 76px;
  height: 76px;
  filter: drop-shadow(0 14px 26px rgba(0,0,0,.10));
}

.product_intro {
  overflow: hidden;
}
.stamp_products {
  position: absolute;
  right: 1%;
  top: 92px;
  transform: rotate(6deg);
}

.access_heading {
  position: relative;
}
.stamp_access {
  position: absolute;
  right: 0;
  top: -24px;
  transform: rotate(-7deg);
}

.contact_brand_stamp {
  position: absolute;
  right: 1%;
  top: -22px;
  transform: rotate(7deg);
}

/* watermark di sistema, molto leggero, sui moduli prodotto */
.product_panel::before {
  content: "";
  position: absolute;
  z-index: 0;
  width: 152px;
  height: 152px;
  right: -34px;
  top: 90px;
  background: url("../icons/oasyscode-icon-128.png") center / contain no-repeat;
  opacity: .035;
  transform: rotate(8deg);
  pointer-events: none;
}
.product_panel_dark::before {
  opacity: .11;
}
.product_panel > * {
  position: relative;
  z-index: 1;
}

/* più geometrie dentro le card bianche senza disturbare la lettura */
.product_panel:not(.product_panel_dark)::after {
  content: "";
  position: absolute;
  z-index: 0;
  left: -42px;
  bottom: -54px;
  width: 160px;
  height: 160px;
  border: 1px solid rgba(10,10,10,.065);
  border-radius: 50%;
  box-shadow: 72px -330px 0 -48px rgba(255,255,255,0), 72px -330px 0 -47px rgba(184,138,46,.11);
  pointer-events: none;
}

.manifesto_mark {
  width: 116px;
  height: 116px;
  right: 40px;
  top: 34px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 18px 44px rgba(0,0,0,.34);
}

.footer_brand span {
  width: 46px;
  height: 46px;
  overflow: hidden;
  border-radius: 13px;
}

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1180px) {
  :root { --page: min(100% - 42px, 1100px); }
  .hero { min-height: auto; padding-top: 150px; grid-template-columns: 1fr; }
  .hero_copy { max-width: 900px; }
  .hero_system { min-height: 620px; }
  .hero_footer { grid-template-columns: repeat(3, 1fr); }
  .hero_footer p { grid-column: 1 / -1; padding: 22px 0 0; border-top: 1px solid var(--line); margin-top: 16px; }
  .products_grid { grid-template-columns: 1fr; }
  .product_panel { min-height: 460px; }
  .architecture { grid-template-columns: 1fr; }
  .architecture_visual { min-height: 620px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .architecture_copy { padding: 76px max(32px, 7vw); }
}

@media (max-width: 820px) {
  :root { --page: calc(100vw - 28px); }
  body { font-size: 17px; }
  .site_header { width: calc(100vw - 20px); min-height: 66px; top: 10px; padding: 9px 10px 9px 14px; }
  .brand_name { font-size: 18px; }
  .menu_button { display: block; }
  .main_nav { position: absolute; top: 74px; left: 0; right: 0; display: none; padding: 10px; flex-direction: column; align-items: stretch; background: #fff; border: 1px solid var(--line); border-radius: 15px; box-shadow: 0 18px 50px rgba(0,0,0,.10); }
  .main_nav.open { display: flex; }
  .main_nav a { padding: 14px; font-size: 16px; }
  .main_nav .nav_cta { margin-left: 0; justify-content: space-between; }
  .hero { padding-top: 124px; gap: 24px; }
  .hero_copy h1 { font-size: clamp(54px, 15vw, 82px); }
  .hero_copy > p { font-size: 19px; }
  .hero_system { min-height: 540px; }
  .system_core { width: 82%; min-height: 330px; padding: 24px; }
  .core_title { margin-top: 42px; }
  .orbit_a { width: 500px; height: 500px; }.orbit_b { width: 390px; height: 390px; }
  .card_data { left: -4px; top: 5%; }.card_logic { right: -4px; bottom: 6%; }.card_status { right: 0; top: 4%; }
  .hero_footer { grid-template-columns: 1fr; }
  .hero_footer > div, .hero_footer > div + div { min-height: 74px; padding: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .hero_footer p { margin-top: 0; border-top: 0; }
  .product_intro { padding-top: 92px; }
  .section_title, .access_heading, .contact_section { grid-template-columns: 1fr; gap: 26px; }
  .section_title h2, .architecture_copy h2, .access_heading h2, .contact_copy h2 { font-size: clamp(48px, 13vw, 70px); }
  .access_heading h2, .access_heading > p { grid-column: 1; }
  .product_panel { min-height: 540px; padding: 25px; }
  .architecture_visual { min-height: 520px; }
  .blueprint_circle { width: 340px; height: 340px; }.blueprint_square { width: 250px; height: 250px; }
  .method_steps > div { grid-template-columns: 44px 110px 1fr; }
  .manifesto { min-height: 460px; padding: 34px; }
  .site_footer { grid-template-columns: 1fr; padding: 34px 0; gap: 12px; }
}

@media (max-width: 560px) {
  :root { --page: calc(100vw - 20px); }
  .brand_mark { width: 40px; height: 40px; flex-basis: 40px; }
  .kicker, .section_label { font-size: 14px; }
  .hero_copy h1 { margin-top: 20px; font-size: 50px; }
  .hero_actions { flex-direction: column; }
  .button { width: 100%; }
  .hero_system { min-height: 490px; }
  .system_core { width: 88%; min-height: 315px; padding: 21px; }
  .core_title { font-size: 42px; }
  .core_modules span { font-size: 13px; }
  .card_data { width: 150px; }.card_logic { width: 158px; }.card_status { display: none; }
  .orbit_a { width: 430px; height: 430px; }.orbit_b { width: 340px; height: 340px; }
  .section_title h2, .architecture_copy h2, .access_heading h2, .contact_copy h2 { font-size: 46px; }
  .section_title p, .architecture_copy > p { font-size: 17px; }
  .product_brand_row { margin-top: 46px; }
  .product_logo { width: 66px; height: 66px; flex-basis: 66px; }
  .product_brand_row h3 { font-size: 39px; }
  .product_text { font-size: 16px; }
  .architecture_visual { min-height: 430px; }
  .blueprint_circle { width: 290px; height: 290px; }.blueprint_square { width: 210px; height: 210px; }
  .architecture_copy { padding: 60px 22px; }
  .method_steps > div { grid-template-columns: 44px 1fr; gap: 8px 12px; }
  .method_steps p { grid-column: 2; }
  .access_card { grid-template-columns: 56px 1fr 42px; padding: 14px; }
  .access_badge { display: none; }
  .access_name strong { font-size: 22px; }
  .manifesto { margin-bottom: 90px; padding: 26px; min-height: 390px; }
  .manifesto_mark { right: 22px; top: 20px; width: 70px; height: 70px; }
  .manifesto p { font-size: 46px; }
  .contact_section { padding-bottom: 90px; }
  .contact_button { width: 100%; justify-content: space-between; }
}

@media (max-width: 820px) {
  .hero_brand_emblem {
    top: 102px;
    left: auto;
    right: 4%;
    width: 72px;
    height: 72px;
    transform: rotate(-5deg);
  }
  .stamp_products,
  .stamp_access,
  .contact_brand_stamp {
    width: 64px;
    height: 64px;
  }
  .stamp_products { top: 82px; right: 0; }
  .stamp_access { top: -12px; right: 0; }
  .contact_brand_stamp { top: -4px; right: 0; }
}

@media (max-width: 560px) {
  .hero_brand_emblem {
    top: 94px;
    right: 2%;
    width: 58px;
    height: 58px;
  }
  .section_brand_stamp,
  .contact_brand_stamp {
    width: 52px;
    height: 52px;
  }
  .stamp_products {
    top: 80px;
    right: 2px;
  }
  .stamp_access,
  .contact_brand_stamp {
    opacity: .88;
  }
  .product_panel::before {
    width: 112px;
    height: 112px;
    right: -30px;
  }
  .hero::before,
  .product_intro::before,
  .products_grid::before,
  .access_section::before,
  .contact_section::before {
    opacity: .75;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}