/* Page chrome for VCL AI Adoption: header, drawer, sections, heroes, bands, forms, footer, breakpoints.
   Design rules live in CLAUDE.md and design-system/BRAND.md. Section components are in sections.css. */
html { scroll-behavior: smooth; }
body { padding: 0; background: #141517; }
img { max-width: 100%; }
.skip { position: absolute; inset-inline-start: -999px; top: 8px; z-index: 100; background: var(--bone); color: var(--carbon); padding: 10px 14px; border-radius: 8px; }
.skip:focus { inset-inline-start: 8px; }

.wrap { max-width: 1280px; margin: 0 auto; padding-inline: 64px; }
.wrap.narrow { max-width: 1040px; }
.section { padding-block: 144px; }
.section.dark { background: var(--carbon); color: var(--bone); }
.section.paper { background: var(--ground); color: var(--ink); }
.section h2, .band h2, .hero h2 { font: 500 56px/1.02 var(--font-display); letter-spacing: -.04em; margin: 0; max-width: 820px; text-align: start; }
.section h2.center { text-align: center; margin: 0 auto 48px; }
.standfirst { font: 400 18px/28px var(--font-display); opacity: .78; max-width: 620px; margin: 20px 0 56px; }
.closing { font: 400 18px/28px var(--font-display); opacity: .85; max-width: 760px; margin: 56px 0 0; padding-top: 24px; border-top: 1px solid var(--rule); }
.section.dark .closing { border-color: rgba(255,255,255,.12); }
.actions { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.va-btn, .va-link { white-space: nowrap; }

/* Header */
.site-header { position: fixed; top: 0; inset-inline: 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; padding: 20px 64px; color: var(--bone); pointer-events: none; transition: color var(--dur-fade) var(--ease-out); }
.site-header > * { pointer-events: auto; }
.nav { display: flex; align-items: center; gap: 4px; padding: 6px 6px 6px 18px; transition: background var(--dur-fade) var(--ease-out), border-color var(--dur-fade) var(--ease-out); }
.nav__links { display: flex; align-items: center; gap: 2px; }
.nav__links a { color: rgba(242,240,235,.85); text-decoration: none; font: 400 15px/1 var(--font-display); padding: 10px 12px; border-radius: 6px; }
.nav__links a:hover { color: #fff; }
.nav__links a[aria-current="page"] { color: #fff; box-shadow: inset 0 -1px 0 rgba(242,240,235,.7); border-radius: 0; padding-bottom: 9px; }
.nav-cta { margin-inline-start: 10px; }
.nav__toggle { display: none; height: 40px; width: 40px; border: 0; background: transparent; color: inherit; border-radius: 8px; cursor: pointer; align-items: center; justify-content: center; }
.nav__toggle svg { width: 20px; height: 20px; }
.nav__toggle .x { display: none; }
.nav__toggle[aria-expanded="true"] .x { display: block; }
.nav__toggle[aria-expanded="true"] .bars { display: none; }
.nav-drawer { position: absolute; top: 72px; inset-inline: 16px; padding: 12px; display: none; flex-direction: column; gap: 2px; }
.nav-drawer.is-open { display: flex; }
.nav-drawer a { color: rgba(242,240,235,.9); text-decoration: none; font: 500 20px/1.2 var(--font-display); letter-spacing: -.02em; padding: 14px 12px; border-radius: 8px; }
.nav-drawer a:hover { background: rgba(255,255,255,.06); }
.nav-drawer a[aria-current="page"] { color: #fff; background: rgba(255,255,255,.08); }
.nav-drawer .va-btn { margin: 10px 12px 4px; justify-content: space-between; }
/* Header over Paper: dark ink and a solid nav panel */
.site-header.is-paper { color: var(--ink); }
.site-header.is-paper .nav { background: rgba(255,255,255,.82); border-color: var(--rule); }
.site-header.is-paper .nav__links a { color: var(--ink-2); }
.site-header.is-paper .nav__links a:hover, .site-header.is-paper .nav__links a[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -1px 0 var(--ink); }
.site-header.is-paper .va-lockup { color: var(--ink); }
.brand { color: inherit; text-decoration: none; display: inline-flex; }
.site-header .va-lockup, .site-header .va-lockup--on-dark { color: inherit; }
.site-header .va-lockup i { background: currentColor; opacity: .45; }
.brand .va-lockup:not(.va-lockup--on-dark) { display: none; }
.site-header.is-paper .brand .va-lockup--on-dark { display: none; }
.site-header.is-paper .brand .va-lockup:not(.va-lockup--on-dark) { display: inline-flex; }

/* Hero: the glass scene with one frosted panel along the bottom */
.hero { position: relative; height: 100vh; min-height: 640px; overflow: hidden; display: flex; flex-direction: column; justify-content: flex-end; padding: 0 64px 40px; }
.hero--page { height: 78vh; min-height: 560px; }
.hero__scene { position: absolute; inset: 0; }
.hero__panel { position: relative; z-index: 2; display: grid; grid-template-columns: 1.3fr 1fr; gap: 56px; align-items: end; padding: 36px 40px; max-width: 1152px; width: 100%; margin: 0 auto; }
.hero h1 { font: 500 64px/1 var(--font-display); letter-spacing: -.045em; margin: 0 0 28px; text-align: start; }
.hero--page h1 { font-size: 56px; margin-bottom: 0; }
.hero p { font: 400 17px/27px var(--font-display); color: rgba(242,240,235,.82); margin: 0 0 8px; }
.hero__fact { font: 400 14px/22px var(--font-display); color: rgba(242,240,235,.62); margin: 16px 0 0; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.14); }

/* Story */
.story { background: #141517; }

/* Band: a still glass scene behind one panel */
.band { position: relative; overflow: hidden; padding-block: 120px; }
.band__scene { position: absolute; inset: 0; }
.band__panel { position: relative; z-index: 2; padding: 40px; max-width: 760px; }
.band__panel h2 { font-size: 44px; }
.band__panel p { font: 400 17px/27px var(--font-display); color: rgba(242,240,235,.85); margin: 18px 0 0; }
.band__panel .actions { margin-top: 28px; }

/* Next-step strip at the end of every content page */
.next { padding-block: 96px; background: #0f1012; color: var(--bone); border-top: 1px solid rgba(255,255,255,.08); }
.next .wrap { display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: center; }
.next h2 { font-size: 40px; }
.next p { font: 400 17px/27px var(--font-display); opacity: .8; max-width: 560px; margin: 14px 0 0; }

/* Split layout: text and a diagram */
.split { display: grid; grid-template-columns: 1fr 640px; gap: 48px; align-items: center; }
.split > * { min-width: 0; }

/* Contact */
.contact { position: relative; padding: 160px 0 144px; overflow: hidden; }
.contact__scene { position: absolute; inset: 0; }
.contact__grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1.1fr; gap: 24px; align-items: start; }
.contact__intro { padding: 40px; }
.contact__intro h1 { font: 500 48px/1.02 var(--font-display); letter-spacing: -.04em; margin: 0; }
.contact__intro p { font: 400 17px/27px var(--font-display); color: rgba(242,240,235,.85); margin: 20px 0 0; }
.contact__intro .actions { margin-top: 28px; }
.contact__form { padding: 32px; display: grid; gap: 16px; }
.contact__form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact__form label { display: grid; gap: 8px; font: 500 13px/1.2 var(--font-display); color: rgba(242,240,235,.85); }
.contact__form input, .contact__form select, .contact__form textarea { font: 400 15px/1.4 var(--font-display); color: var(--bone); background: rgba(0,0,0,.28); border: 1px solid rgba(255,255,255,.22); border-radius: 8px; padding: 12px 14px; width: 100%; }
.contact__form input:focus, .contact__form select:focus, .contact__form textarea:focus { outline: 2px solid var(--bone); outline-offset: 1px; }
.contact__form select option { color: #161719; }
.contact__form .check { display: grid; grid-template-columns: 20px 1fr; gap: 12px; align-items: start; font-weight: 400; line-height: 20px; }
.contact__form .check input { width: 18px; height: 18px; margin: 1px 0 0; padding: 0; accent-color: var(--bone); }
.contact__form .check a { color: inherit; }
.contact__form button { justify-self: start; margin-top: 4px; }
.hp { position: absolute; inset-inline-start: -9999px; }
.form-status { margin: 0; font: 400 14px/22px var(--font-display); min-height: 22px; }

/* Documents on Paper (outline, privacy) */
.doc { background: var(--ground); color: var(--ink); padding: 160px 0 120px; }
.doc .wrap { max-width: 860px; }
.doc h1 { font: 500 56px/1.02 var(--font-display); letter-spacing: -.04em; margin: 0 0 12px; }
.doc h2 { font: 500 34px/1.1 var(--font-display); letter-spacing: -.03em; margin: 64px 0 20px; max-width: none; }
.doc h3 { font: 500 22px/1.2 var(--font-display); letter-spacing: -.02em; margin: 32px 0 10px; }
.doc p, .doc li { font: 400 16px/26px var(--font-display); color: var(--ink-2); }
.doc p.lead { font-size: 19px; line-height: 30px; color: var(--ink); max-width: 680px; }
.doc ul { padding-inline-start: 20px; }
.doc table { width: 100%; border-collapse: collapse; margin: 16px 0 24px; font: 400 15px/22px var(--font-display); }
.doc th, .doc td { text-align: start; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.doc th { font-weight: 500; color: var(--ink); }
.doc .doc__meta { display: flex; gap: 24px; flex-wrap: wrap; font: 400 14px/22px var(--font-display); color: var(--ink-2); margin: 0 0 48px; padding-bottom: 20px; border-bottom: 1px solid var(--rule); }
.doc .doc__actions { display: flex; gap: 20px; align-items: center; margin: 32px 0 0; }
.doc .va-tagline { color: var(--ink); }

/* 404 */
.notfound { min-height: 100vh; display: grid; place-items: center; background: var(--carbon); color: var(--bone); padding: 120px 24px; text-align: center; }
.notfound h1 { font: 500 56px/1.02 var(--font-display); letter-spacing: -.04em; margin: 0 0 20px; }
.notfound p { font: 400 17px/27px var(--font-display); opacity: .8; margin: 0 0 28px; }

/* Footer */
.site-footer { background: #0e0f10; color: var(--bone); padding: 72px 0 32px; }
.footer__grid { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; }
.footer__tag { margin: 18px 0 0; }
.footer__group { font: 400 14px/22px var(--font-display); color: rgba(242,240,235,.6); margin: 10px 0 0; }
.footer__links { display: flex; gap: 28px; flex-wrap: wrap; }
.footer__links a { color: rgba(242,240,235,.8); text-decoration: none; font: 400 15px/1 var(--font-display); }
.footer__links a:hover { color: #fff; }
.footer__legal { margin-top: 48px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); font: 400 13px/20px var(--font-display); color: rgba(242,240,235,.6); }

/* Arabic-ready: font swap and mirrored arrow when a page is set to dir="rtl" */
[dir="rtl"] body, [dir="rtl"] .va-lockup span, [dir="rtl"] h1, [dir="rtl"] h2, [dir="rtl"] h3 { font-family: var(--font-arabic); letter-spacing: 0; }
[dir="rtl"] .va-btn__dot svg { transform: scaleX(-1); }

/* Tablet */
@media (max-width: 1100px) {
  .split { grid-template-columns: 1fr; }
  .split .orbit-host { width: 100%; display: flex; justify-content: center; }
  .contact__grid { grid-template-columns: 1fr; }
  .next .wrap { grid-template-columns: 1fr; }
  .nav__links { display: none; }
  .nav__toggle { display: inline-flex; }
  .nav { padding: 4px 4px 4px 8px; }
  .site-header { padding: 16px 24px; }
}
/* Mobile */
@media (max-width: 767px) {
  .wrap { padding-inline: 24px; }
  .section, .contact { padding-block: 96px; }
  .section h2, .band h2, .hero h2 { font-size: 38px; }
  .closing { margin-top: 40px; }
  .site-header { padding: 14px 16px; }
  .nav-cta { margin: 0; }
  .nav-cta span:first-child { font-size: 14px; }
  .brand .va-lockup i, .brand .va-lockup span { display: none; }
  .hero { padding: 0 16px 16px; }
  .hero--page { height: 72vh; min-height: 520px; }
  .hero__panel { grid-template-columns: 1fr; gap: 16px; padding: 24px; }
  .hero h1 { font-size: 38px; margin-bottom: 20px; }
  .hero--page h1 { font-size: 34px; margin-bottom: 0; }
  .band { padding-block: 80px; }
  .band__panel { padding: 24px; }
  .band__panel h2 { font-size: 32px; }
  .next { padding-block: 72px; }
  .next h2 { font-size: 32px; }
  .va-tiers, .va-comp__cols, .va-flu__cols { grid-template-columns: 1fr !important; }
  .va-tiers > div + div { padding-inline-start: 0; border-inline-start: 0; border-top: 1px solid var(--rule); margin-top: 24px; }
  .va-orbit { width: calc(100% - 48px); margin: 40px auto; }
  .va-orbit .name { font-size: 22px; }
  .va-orbit__centre { width: 62%; }
  .va-orbit__centre h3 { font-size: 26px; }
  .va-orbit__centre .text { display: none; }
  html, body { overflow-x: hidden; }
  .contact { padding-top: 120px; }
  .contact__intro { padding: 24px; }
  .contact__intro h1 { font-size: 36px; }
  .contact__form { padding: 20px; }
  .contact__form .row2 { grid-template-columns: 1fr; }
  .doc { padding: 120px 0 80px; }
  .doc h1 { font-size: 40px; }
  .doc h2 { font-size: 28px; }
  .footer__grid { flex-direction: column; align-items: flex-start; }
  .va-story__head { inset-inline: 24px; top: 88px; }
  .va-story__head h2 { font-size: 34px; }
}