:root {
  --ink: #07090b;
  --panel: #0d1114;
  --panel-2: #12181c;
  --line: #293138;
  --line-bright: #52606a;
  --paper: #f0f3f2;
  --muted: #9ca6ab;
  --cyan: #00c8f2;
  --cyan-soft: #8ceeff;
  --amber: #ff9f1a;
  --header-h: 72px;
  --display: "Avenir Next Condensed", "Arial Narrow", Impact, sans-serif;
  --body: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--ink); }
body { margin: 0; background: var(--ink); color: var(--paper); font-family: var(--body); line-height: 1.5; overflow-x: hidden; }
body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .14; background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: 56px 56px; mask-image: linear-gradient(to bottom, black, transparent 70%); }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { background: var(--cyan); color: #001018; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 100; transform: translateY(-150%); padding: .75rem 1rem; background: var(--cyan); color: #001018; font-weight: 800; text-decoration: none; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: 0 clamp(1rem, 4vw, 4.5rem); border-bottom: 1px solid rgba(255,255,255,.12); background: rgba(7,9,11,.78); backdrop-filter: blur(16px); transition: background .25s ease, height .25s ease; }
.site-header.scrolled { background: rgba(7,9,11,.96); box-shadow: 0 8px 28px rgba(0,0,0,.28); }
.brand { display: inline-flex; align-items: center; gap: .75rem; color: var(--paper); font-family: var(--display); font-stretch: condensed; font-size: 1.45rem; font-style: italic; font-weight: 900; letter-spacing: .06em; line-height: 1; text-decoration: none; }
.brand img { border-radius: 8px; }
.main-nav { display: flex; align-items: center; gap: clamp(1rem, 2.7vw, 2.8rem); }
.main-nav a, .site-footer nav a { position: relative; color: #d8ddde; font-size: .78rem; font-weight: 800; letter-spacing: .13em; text-decoration: none; text-transform: uppercase; }
.main-nav a:not(.nav-plate)::after, .site-footer nav a::after { content: ""; position: absolute; right: 0; bottom: -.45rem; left: 0; height: 1px; background: var(--cyan); transform: scaleX(0); transform-origin: right; transition: transform .2s ease; }
.main-nav a:hover::after, .main-nav a:focus-visible::after, .site-footer nav a:hover::after, .site-footer nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.nav-plate { padding: .55rem .8rem; border: 1px solid var(--cyan); clip-path: polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px); }
.menu-button { display: none; border: 0; background: none; color: white; cursor: pointer; }

.hero { position: relative; min-height: min(940px, 100svh); display: grid; align-items: end; isolation: isolate; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-media { position: absolute; inset: 0; z-index: -3; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 58% center; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -2; background: linear-gradient(90deg, rgba(5,7,9,.97) 0%, rgba(5,7,9,.8) 31%, rgba(5,7,9,.14) 66%, rgba(5,7,9,.2) 100%), linear-gradient(0deg, rgba(5,7,9,.88), transparent 48%); }
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 6px; background: linear-gradient(90deg, var(--cyan) 0 22%, transparent 22% 82%, var(--amber) 82%); }
.hero-grid { position: absolute; inset: 0; z-index: -1; opacity: .15; background-image: linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px); background-size: 90px 90px; mask-image: linear-gradient(90deg, black, transparent 50%); }
.hero-content { width: min(760px, 86vw); margin: 0 0 clamp(4.5rem, 10vh, 8rem) clamp(1.25rem, 7vw, 7rem); padding-top: calc(var(--header-h) + 3rem); }
.eyebrow, .section-code { margin: 0 0 1rem; color: var(--cyan); font-family: var(--display); font-size: .9rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.eyebrow.amber { color: var(--amber); }
h1, h2, h3 { margin: 0; font-family: var(--display); font-stretch: condensed; font-weight: 900; letter-spacing: -.035em; line-height: .82; text-transform: uppercase; }
h1 { max-width: 720px; font-size: clamp(5.8rem, 11vw, 10.5rem); text-shadow: 0 2px 30px rgba(0,0,0,.55); }
.hero-copy { max-width: 430px; margin: 1.5rem 0 0; color: #e4e8e8; font-size: clamp(1rem, 1.8vw, 1.35rem); line-height: 1.45; }
.hero-actions { display: flex; align-items: center; gap: 1rem; margin-top: 2rem; }
.action { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: .8rem 1.35rem; font-family: var(--display); font-size: .88rem; font-weight: 900; letter-spacing: .13em; text-decoration: none; text-transform: uppercase; clip-path: polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px); transition: transform .2s ease, filter .2s ease; }
.action:hover, .action:focus-visible { transform: translateY(-2px); filter: brightness(1.12); }
.action-primary { background: var(--cyan); color: #001018; box-shadow: 0 0 30px rgba(0,200,242,.2); }
.version-mark { padding: .55rem .8rem; border: 1px solid rgba(255,159,26,.65); color: var(--amber); font-family: var(--display); font-size: .75rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.hero-rail { position: absolute; right: 1rem; bottom: 3.5rem; display: flex; gap: 2rem; color: rgba(255,255,255,.54); font-family: monospace; font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; transform: rotate(-90deg) translateX(100%); transform-origin: right bottom; }

.section-shell { width: min(1320px, calc(100% - 2.5rem)); margin: 0 auto; }
.impact { display: grid; grid-template-columns: .82fr 1.18fr; min-height: 760px; border-right: 1px solid var(--line); border-left: 1px solid var(--line); }
.impact-copy { padding: clamp(5rem, 9vw, 9rem) clamp(2rem, 5vw, 5.5rem); border-right: 1px solid var(--line); }
h2 { font-size: clamp(4.5rem, 8vw, 8.5rem); }
.lede { max-width: 580px; margin: 2rem 0 0; color: var(--muted); font-size: 1.05rem; }
.feature-list { margin: 3.2rem 0 0; padding: 0; list-style: none; }
.feature-list li { display: grid; grid-template-columns: 44px 1fr; gap: 0 .8rem; padding: 1.15rem 0; border-top: 1px solid var(--line); }
.feature-list li:last-child { border-bottom: 1px solid var(--line); }
.feature-list span { grid-row: 1 / 3; color: var(--cyan); font-family: monospace; font-size: .7rem; }
.feature-list strong { font-family: var(--display); font-size: 1.3rem; letter-spacing: .03em; text-transform: uppercase; }
.feature-list small { color: var(--muted); font-size: .82rem; }
.impact-visual { position: relative; margin: 0; min-height: 560px; overflow: hidden; }
.impact-visual::after { content: ""; position: absolute; inset: 0; border: 12px solid rgba(7,9,11,.72); pointer-events: none; clip-path: polygon(0 0,72% 0,76% 14px,100% 14px,100% 100%,0 100%); }
.impact-visual picture, .impact-visual img { width: 100%; height: 100%; }
.impact-visual img { object-fit: cover; object-position: center; }
.impact-visual figcaption { position: absolute; z-index: 2; right: 2rem; bottom: 1.5rem; left: 2rem; display: flex; justify-content: space-between; color: rgba(255,255,255,.74); font-family: monospace; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; }

.modes { padding: clamp(6rem, 10vw, 10rem) 0; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin: 0 0 clamp(3rem, 6vw, 6rem); }
.section-heading h2 { font-size: clamp(4rem, 7vw, 7.5rem); }
.mode { position: relative; min-height: 590px; display: grid; grid-template-columns: 1.2fr .8fr; overflow: hidden; border: 1px solid var(--line-bright); background: var(--panel); clip-path: polygon(20px 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%,0 20px); }
.mode + .mode { margin-top: 2rem; grid-template-columns: .8fr 1.2fr; }
.mode-media, .mode-media img { width: 100%; height: 100%; }
.mode-media { min-height: 500px; overflow: hidden; }
.mode-media img { object-fit: cover; transition: transform .8s cubic-bezier(.2,.7,.2,1); }
.mode:hover .mode-media img { transform: scale(1.025); }
.mode-copy { position: relative; align-self: stretch; display: flex; flex-direction: column; justify-content: end; padding: clamp(2.5rem, 6vw, 6rem); border-left: 1px solid var(--line); background: linear-gradient(135deg, rgba(255,255,255,.018), transparent 50%); }
.mode-online .mode-media { order: 2; }
.mode-online .mode-copy { order: 1; border-right: 1px solid var(--line); border-left: 0; }
.mode-number { position: absolute; top: 2rem; right: 2rem; color: #263139; font-family: var(--display); font-size: 7rem; font-weight: 900; line-height: 1; }
.mode h3 { position: relative; z-index: 1; font-size: clamp(4.2rem, 7vw, 8rem); }
.mode-copy > p:last-child { position: relative; z-index: 1; max-width: 420px; margin: 1.5rem 0 0; color: var(--muted); }

.locker { position: relative; min-height: min(850px, 82vw); display: grid; align-items: center; overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.locker-media { position: absolute; inset: 0; }
.locker-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.locker::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5,7,9,.06), rgba(5,7,9,.18) 48%, rgba(5,7,9,.96) 70%); }
.locker-copy { position: relative; z-index: 1; width: min(530px, 44vw); margin: 0 clamp(1.25rem, 7vw, 7rem) 0 auto; }
.locker-copy p:not(.section-code) { max-width: 420px; color: #c5cccf; font-size: 1.05rem; }
.locker-tags { display: flex; flex-wrap: wrap; gap: .7rem; margin: 2rem 0 0; padding: 0; list-style: none; }
.locker-tags li { padding: .65rem .85rem; border: 1px solid var(--cyan); color: var(--cyan-soft); font-family: var(--display); font-size: .85rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; clip-path: polygon(7px 0,100% 0,100% calc(100% - 7px),calc(100% - 7px) 100%,0 100%,0 7px); }

.trust { padding: clamp(6rem, 10vw, 10rem) 0; }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; padding: 0; list-style: none; border: 1px solid var(--line-bright); }
.trust-grid li { display: grid; grid-template-columns: 58px 1fr; align-items: center; gap: .15rem 1rem; min-height: 170px; padding: 2rem; }
.trust-grid li + li { border-left: 1px solid var(--line); }
.trust-grid span { grid-row: 1 / 3; display: grid; place-items: center; width: 52px; height: 52px; border: 1px solid var(--amber); border-radius: 50%; color: var(--amber); font-family: var(--display); font-size: 1.5rem; font-weight: 900; }
.trust-grid strong { font-family: var(--display); font-size: 1.35rem; letter-spacing: .05em; text-transform: uppercase; }
.trust-grid small { align-self: start; color: var(--muted); }
.trust-note { margin: 1.5rem 0 0; color: var(--muted); text-align: center; }
.trust-note a { color: var(--cyan-soft); }

.closing { position: relative; display: grid; place-items: center; min-height: 610px; padding: 6rem 1.25rem; overflow: hidden; text-align: center; border-top: 1px solid var(--line); background: radial-gradient(circle at 50% 110%, rgba(0,200,242,.17), transparent 44%), linear-gradient(rgba(8,10,12,.88), rgba(8,10,12,.98)), url('/assets/online-1v1.jpg') center/cover; }
.closing::before, .closing::after { content: ""; position: absolute; width: 28%; height: 1px; top: 50%; background: linear-gradient(90deg, transparent, var(--cyan)); }
.closing::before { left: 0; }
.closing::after { right: 0; transform: rotate(180deg); }
.closing h2 { font-size: clamp(5.2rem, 10vw, 10.5rem); }
.closing > p:not(.section-code) { color: var(--muted); }
.closing .action { margin-top: 1rem; }

.site-footer { min-height: 120px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 2rem; padding: 2rem clamp(1.25rem, 5vw, 5rem); border-top: 1px solid var(--line); background: #050607; }
.site-footer nav { display: flex; gap: 2rem; }
.site-footer > p { margin: 0; color: var(--muted); font-size: .78rem; text-align: right; }

.page-hero { position: relative; min-height: 430px; display: grid; align-items: end; padding: calc(var(--header-h) + 6rem) clamp(1.25rem, 8vw, 8rem) 5rem; overflow: hidden; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 80% 20%, rgba(0,200,242,.14), transparent 32%), linear-gradient(135deg, #0c1114, #07090b 58%); }
.page-hero::before { content: ""; position: absolute; inset: 0; opacity: .18; background-image: linear-gradient(135deg, transparent 0 47%, var(--line-bright) 47% 47.2%, transparent 47.2% 100%); background-size: 48px 48px; }
.page-hero > div { position: relative; z-index: 1; width: min(900px, 100%); }
.page-hero h1 { font-size: clamp(4.8rem, 10vw, 9rem); }
.page-hero p:last-child { max-width: 680px; margin: 1.5rem 0 0; color: var(--muted); font-size: 1.08rem; }
.doc-shell { display: grid; grid-template-columns: 250px minmax(0, 760px); gap: clamp(3rem, 8vw, 8rem); width: min(1160px, calc(100% - 2.5rem)); margin: 0 auto; padding: clamp(4rem, 8vw, 8rem) 0; }
.doc-nav { align-self: start; position: sticky; top: calc(var(--header-h) + 2rem); }
.doc-nav p { margin: 0 0 1rem; color: var(--muted); font-family: monospace; font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; }
.doc-nav a { display: block; padding: .75rem 0; border-top: 1px solid var(--line); color: #cbd1d3; font-size: .85rem; text-decoration: none; }
.doc-nav a:hover, .doc-nav a:focus-visible { color: var(--cyan); }
.doc { min-width: 0; }
.doc .updated { margin: 0 0 3rem; color: var(--muted); font-family: monospace; font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; }
.doc section { scroll-margin-top: calc(var(--header-h) + 2rem); }
.doc section + section { margin-top: 4rem; padding-top: 4rem; border-top: 1px solid var(--line); }
.doc h2 { margin-bottom: 1.5rem; font-size: clamp(2.5rem, 5vw, 4.4rem); line-height: .92; }
.doc h3 { margin: 2rem 0 .75rem; font-size: 1.65rem; line-height: 1; letter-spacing: .01em; }
.doc p, .doc li { color: #b7c0c4; }
.doc strong { color: var(--paper); }
.doc a { color: var(--cyan-soft); text-underline-offset: 3px; }
.doc ul, .doc ol { padding-left: 1.2rem; }
.doc li + li { margin-top: .7rem; }
.fact-box, .contact-box { margin: 2rem 0; padding: 1.5rem; border: 1px solid var(--line-bright); background: var(--panel); clip-path: polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px); }
.fact-box strong, .contact-box strong { display: block; margin-bottom: .4rem; color: var(--cyan); font-family: var(--display); letter-spacing: .08em; text-transform: uppercase; }
.contact-box .action { margin-top: .8rem; color: #001018; text-decoration: none; }
.support-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin: 2rem 0; }
.support-card { padding: 1.5rem; border: 1px solid var(--line); background: var(--panel); }
.support-card span { color: var(--cyan); font-family: monospace; font-size: .7rem; }
.support-card h3 { margin-top: 1.5rem; }
.support-card p { margin-bottom: 0; font-size: .9rem; }
details { border-top: 1px solid var(--line); }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { padding: 1.2rem 2rem 1.2rem 0; color: var(--paper); font-family: var(--display); font-size: 1.15rem; font-weight: 800; letter-spacing: .03em; text-transform: uppercase; cursor: pointer; }
details p { margin-top: 0; padding-bottom: 1.2rem; }

.reveal { opacity: 1; transform: none; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }

@media (max-width: 900px) {
  :root { --header-h: 64px; }
  .menu-button { display: grid; width: 44px; height: 44px; place-content: center; gap: 5px; }
  .menu-button span:not(.sr-only) { width: 24px; height: 2px; background: currentColor; transition: transform .2s ease, opacity .2s ease; }
  .menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .main-nav { position: absolute; inset: var(--header-h) 0 auto; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 1rem 1.25rem 1.5rem; border-bottom: 1px solid var(--line); background: #080b0d; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 1rem 0; border-top: 1px solid var(--line); }
  .nav-plate { margin-top: .5rem; text-align: center; }
  .hero { min-height: 820px; align-items: end; }
  .hero::before { background: linear-gradient(0deg, rgba(5,7,9,.98) 0%, rgba(5,7,9,.82) 49%, rgba(5,7,9,.18) 82%); }
  .hero-media img { object-position: 58% 20%; }
  .hero-content { margin: 0 1.25rem 5.2rem; }
  .hero-rail { display: none; }
  .impact { grid-template-columns: 1fr; }
  .impact-copy { border-right: 0; border-bottom: 1px solid var(--line); }
  .impact-visual { min-height: 500px; }
  .mode, .mode + .mode { grid-template-columns: 1fr; }
  .mode-media, .mode-online .mode-media { order: 1; min-height: 380px; }
  .mode-copy, .mode-online .mode-copy { order: 2; min-height: 410px; border: 0; border-top: 1px solid var(--line); }
  .locker { min-height: 900px; align-items: end; }
  .locker::after { background: linear-gradient(0deg, rgba(5,7,9,.98) 0%, rgba(5,7,9,.7) 48%, rgba(5,7,9,.03) 78%); }
  .locker-media img { object-position: 43% center; }
  .locker-copy { width: auto; margin: 0 1.25rem 4rem; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-grid li + li { border-top: 1px solid var(--line); border-left: 0; }
  .site-footer { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .site-footer > p { text-align: center; }
  .doc-shell { grid-template-columns: 1fr; }
  .doc-nav { display: none; }
}

@media (max-width: 560px) {
  h1 { font-size: clamp(4.5rem, 23vw, 7rem); }
  h2 { font-size: clamp(3.6rem, 18vw, 5.4rem); }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .section-shell { width: min(100% - 1.25rem, 1320px); }
  .impact-copy { padding: 5rem 1.25rem; }
  .impact-visual { min-height: 370px; }
  .impact-visual figcaption { right: 1rem; left: 1rem; }
  .section-heading { display: block; }
  .mode-media, .mode-online .mode-media { min-height: 270px; }
  .mode-copy, .mode-online .mode-copy { min-height: 370px; padding: 2rem 1.5rem; }
  .mode h3 { font-size: 4.1rem; }
  .mode-number { font-size: 5rem; }
  .trust-grid li { grid-template-columns: 48px 1fr; padding: 1.5rem; }
  .trust-grid span { width: 42px; height: 42px; }
  .closing::before, .closing::after { display: none; }
  .site-footer nav { gap: 1.2rem; }
  .page-hero { min-height: 390px; padding-bottom: 3.5rem; }
  .support-grid { grid-template-columns: 1fr; }
}

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