/* ============================================================
   FRAME V2 — core
   Precision-instrument aesthetic. All color/type from the bound
   FRAME design system tokens. This file: base, cursor, preloader,
   nav, buttons, type helpers, section scaffolding.
   ============================================================ */

:root {
  --ink-950: #07090C;
  --ink-900: #0A0D10;
  --ink-850: #0D1116;
  --ink-800: #111418;            /* ironworks */
  --ink-750: #161B21;
  --line-1: rgba(243,244,245,0.08);
  --line-2: rgba(243,244,245,0.14);
  --line-3: rgba(243,244,245,0.22);
  --nav-h: 76px;
  --motion: 1;
  --gutter: clamp(20px, 4.5vw, 72px);
}

* { box-sizing: border-box; }
html { scroll-behavior: auto; font-size: 17.5px; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  margin: 0;
  background: var(--ink-950);
  color: var(--frame-clearspan);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
::selection { background: var(--frame-deepwater); color: #fff; }
body::-webkit-scrollbar { width: 10px; }
body::-webkit-scrollbar-track { background: var(--ink-950); }
body::-webkit-scrollbar-thumb { background: #232b34; border: 3px solid var(--ink-950); border-radius: 99px; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; }

.wrap { width: 100%; max-width: 1360px; margin-inline: auto; padding-inline: var(--gutter); }

/* ---- film grain ---- */
.grain { position: fixed; inset: -100px; z-index: 200; pointer-events: none; opacity: .5; }
.grain::before {
  content: ""; position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .05 0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grainShift 1.2s steps(4) infinite;
}
@keyframes grainShift {
  0% { transform: translate(0,0); } 25% { transform: translate(-40px,30px); }
  50% { transform: translate(30px,-50px); } 75% { transform: translate(-30px,-20px); }
  100% { transform: translate(0,0); }
}
body.no-grain .grain { display: none; }
@media (prefers-reduced-motion: reduce) { .grain::before { animation: none; } }

/* ---- preloader ---- */
.boot {
  position: fixed; inset: 0; z-index: 500; background: var(--ink-950);
  display: grid; place-items: center;
  transition: clip-path .8s var(--ease-standard);
  clip-path: inset(0 0 0 0);
}
.boot.is-done { clip-path: inset(0 0 100% 0); pointer-events: none; }
.boot__inner { text-align: center; }
.boot__glyph { width: clamp(72px, 9vw, 120px); margin-inline: auto; }
.boot__glyph path { fill: var(--frame-conduit); opacity: 0; transform: translateY(14px); }
.boot__read {
  margin-top: 28px; font-family: var(--font-condensed); font-weight: 600;
  font-size: 13px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--frame-foundry); min-height: 1.2em;
}
.boot__read b { color: var(--frame-conduit); font-weight: 600; }
.boot__bar { width: clamp(160px, 22vw, 260px); height: 1px; background: var(--line-2); margin: 18px auto 0; position: relative; overflow: hidden; }
.boot__bar i { position: absolute; inset: 0; background: var(--frame-conduit); transform: scaleX(0); transform-origin: left; display: block; }

/* ---- scroll progress hairline ---- */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 320; background: transparent; }
.progress i { display: block; height: 100%; background: var(--frame-conduit); transform: scaleX(0); transform-origin: left; }

/* ---- nav ---- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 300; height: var(--nav-h);
  display: flex; align-items: stretch;
  border-bottom: 1px solid transparent;
  transition: border-color .4s, background .4s, backdrop-filter .4s;
}
.nav.is-solid { background: rgba(7,9,12,.82); backdrop-filter: blur(14px); border-bottom-color: var(--line-1); }
.nav__row { display: flex; align-items: center; width: 100%; max-width: 1360px; margin-inline: auto; padding-inline: var(--gutter); gap: clamp(20px, 3vw, 48px); }
.nav__logo { display: flex; align-items: center; color: var(--frame-clearspan); }
.nav__logo svg { height: 20px; width: auto; }
.nav__links { display: flex; gap: clamp(16px, 2vw, 34px); }
.nav__link {
  font-family: var(--font-condensed); font-weight: 600; font-size: 14px;
  letter-spacing: .16em; text-transform: uppercase; color: var(--frame-galvanized);
  position: relative; padding: 6px 0; cursor: pointer; text-decoration: none;
  transition: color .25s;
}
.nav__link::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: var(--frame-conduit); transform: scaleX(0); transform-origin: right;
  transition: transform .35s var(--ease-standard);
}
/* text-decoration:none wins over the design-system's a:hover underline */
.nav__link:hover { color: var(--frame-clearspan); text-decoration: none; }
.nav__link.is-active { color: var(--frame-clearspan); }
.nav__link:hover::after, .nav__link.is-active::after { transform: scaleX(1); transform-origin: left; }
.nav__spacer { flex: 1; }
.nav__cta { display: flex; align-items: center; gap: 18px; }
.nav__signin { font-family: var(--font-condensed); font-weight: 600; font-size: 14px; letter-spacing: .16em; text-transform: uppercase; color: var(--frame-galvanized); cursor: pointer; transition: color .25s; white-space: nowrap; }
.nav__signin:hover { color: var(--frame-clearspan); }
.nav__burger { display: none; cursor: pointer; color: var(--frame-clearspan); }

/* ---- buttons (DS Button language: condensed caps, square, angled cut) ---- */
.btn {
  --_bg: var(--frame-deepwater); --_fg: #fff;
  font-family: var(--font-condensed); font-weight: 600; text-transform: uppercase;
  letter-spacing: .08em; font-size: 15px; text-decoration: none;
  display: inline-flex; align-items: center; gap: .6em;
  padding: 16px 28px; background: var(--_bg); color: var(--_fg);
  cursor: pointer; white-space: nowrap; position: relative; isolation: isolate; overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: color .3s var(--ease-standard);
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1; background: var(--frame-ballast);
  transform: translateY(101%); transition: transform .38s var(--ease-standard);
}
.btn:hover::before { transform: translateY(0); }
.btn:active { transform: translateY(1px); }
.btn--ghost { --_bg: transparent; --_fg: var(--frame-clearspan); box-shadow: inset 0 0 0 1px var(--line-3); }
.btn--ghost::before { background: var(--frame-clearspan); }
.btn--ghost:hover { color: var(--frame-ironworks); }
.btn--lg { padding: 19px 34px; font-size: 16px; }
.btn .material-symbols-sharp { font-size: 18px; transition: transform .3s var(--ease-standard); }
.btn:hover .material-symbols-sharp { transform: translateX(4px); }

/* ---- type helpers ---- */
.kicker {
  font-family: var(--font-condensed); font-weight: 700; font-size: 15.5px;
  letter-spacing: .2em; text-transform: uppercase; color: var(--frame-conduit);
  display: inline-flex; align-items: center; gap: 12px;
}
.kicker::before { content: ""; width: 30px; height: 1px; background: currentColor; opacity: .7; }
.kicker .idx { color: var(--frame-foundry); }

.h2 {
  font-family: var(--font-display); font-weight: 800; text-transform: uppercase;
  line-height: .94; letter-spacing: -.03em; margin: 0; color: var(--frame-clearspan);
  font-size: clamp(2.9rem, 6vw, 5.4rem);
}
.h3 {
  font-family: var(--font-display); font-weight: 800; text-transform: uppercase;
  line-height: 1.0; letter-spacing: -.025em; margin: 0; color: inherit;
  font-size: clamp(1.7rem, 2.8vw, 2.5rem);
}
.lead { font-size: clamp(1.2rem, 1.6vw, 1.55rem); line-height: 1.55; color: var(--frame-galvanized); max-width: 56ch; }
.lead strong { color: var(--frame-clearspan); font-weight: 600; }
.accent { color: var(--frame-conduit); }

/* masked line reveal (JS wraps .ln > span) */
.ln { display: block; overflow: hidden; }
.ln > span { display: inline-block; transform: translateY(110%); }
html.no-js .ln > span, html.no-motion .ln > span { transform: none; }

[data-reveal] { opacity: 0; transform: translateY(26px); }
html.no-js [data-reveal], html.no-motion [data-reveal] { opacity: 1; transform: none; }

/* ---- section scaffolding ---- */
.section { position: relative; padding: clamp(90px, 12vw, 190px) 0; background: var(--ink-950); }
.section--ink { background: var(--ink-900); }
.section--light { background: var(--frame-clearspan); color: var(--frame-ironworks); }
.section--light .h2, .section--light .h3 { color: var(--frame-ironworks); }
.section--light .lead { color: var(--frame-forge); }
.section--light .kicker { color: var(--frame-deepwater); }
.section--light .accent { color: var(--frame-deepwater); }

/* giant gutter index — engineering drawing style */
.sec-index {
  position: absolute; top: clamp(90px, 12vw, 190px); right: var(--gutter);
  font-family: var(--font-display); font-weight: 600; font-size: clamp(3rem, 6vw, 6rem);
  line-height: 1; color: transparent; -webkit-text-stroke: 1px var(--line-2);
  pointer-events: none; user-select: none;
}
.section--light .sec-index { -webkit-text-stroke: 1px rgba(17,20,24,.14); }

.shead { max-width: 980px; display: grid; gap: 26px; margin-bottom: clamp(48px, 6vw, 96px); }

/* hairline column field behind dark sections */
.gridlines { position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image: linear-gradient(90deg, var(--line-1) 1px, transparent 1px);
  background-size: calc(100% / 6) 100%;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 14%, #000 86%, transparent);
          mask-image: linear-gradient(180deg, transparent, #000 14%, #000 86%, transparent);
  opacity: .6;
}
.section--light .gridlines { background-image: linear-gradient(90deg, rgba(17,20,24,.05) 1px, transparent 1px); }
.section > .wrap { position: relative; z-index: 1; }

/* ---- mobile menu ---- */
.menu {
  position: fixed; inset: 0; z-index: 350; background: var(--ink-950);
  display: flex; flex-direction: column; justify-content: center; padding: var(--gutter);
  clip-path: inset(0 0 100% 0); transition: clip-path .5s var(--ease-standard);
}
.menu.is-open { clip-path: inset(0 0 0 0); }
.menu a {
  font-family: var(--font-display); font-weight: 600; text-transform: uppercase;
  font-size: clamp(2.4rem, 10vw, 4.4rem); line-height: 1.12; color: var(--frame-clearspan); text-decoration: none;
  border-bottom: 1px solid var(--line-1); padding: 12px 0; display: flex; align-items: baseline; gap: 18px;
}
.menu__close { position: absolute; top: 18px; right: 18px; color: var(--frame-clearspan); cursor: pointer; }

@media (max-width: 880px) {
  .nav__links, .nav__signin { display: none; }
  .nav__burger { display: block; }
  .sec-index { display: none; }
}

/* ---- mega nav (Insights / Company) ---- */
.nav__item--mega { position: relative; display: inline-flex; }
.nav__link--mega { display: inline-flex; align-items: center; gap: 3px; background: none; border: 0; }
.nav__link--mega .nav__caret { font-size: 17px; line-height: 1; transition: transform .3s var(--ease-standard); }
.nav__link--mega.is-open { color: var(--frame-clearspan); }
.nav__link--mega.is-open .nav__caret { transform: rotate(180deg); }
.nav__link--mega.is-open::after { transform: scaleX(1); transform-origin: left; }

/* while a panel is open the bar goes solid so bar + panel read as one surface */
.nav.nav--mega { background: #090C10; border-bottom-color: transparent; }

.mega {
  position: absolute; top: 100%; left: 0; right: 0;
  background: #090C10;
  border-bottom: 1px solid var(--line-1);
  box-shadow: 0 40px 80px rgba(0,0,0,.45);
  opacity: 0; visibility: hidden; transform: translateY(-10px); pointer-events: none;
  transition: opacity .26s var(--ease-standard), transform .26s var(--ease-standard), visibility 0s linear .26s;
}
.mega.is-open {
  opacity: 1; visibility: visible; transform: none; pointer-events: auto;
  transition: opacity .26s var(--ease-standard), transform .26s var(--ease-standard);
}
.mega__inner {
  display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: clamp(36px, 6vw, 110px); max-width: 1360px; margin-inline: auto;
  padding: clamp(30px, 3.6vw, 52px) var(--gutter) clamp(34px, 4vw, 58px);
}
.mega__title {
  margin: 0; font-family: var(--font-display); font-weight: 800; text-transform: uppercase;
  letter-spacing: -.02em; font-size: clamp(24px, 2.3vw, 32px); line-height: 1; color: var(--frame-clearspan);
}
.mega__desc { margin: 14px 0 0; max-width: 54ch; font-family: var(--font-body); font-size: 17px; line-height: 1.6; color: var(--frame-galvanized); }
.mega__links { margin-top: clamp(18px, 2vw, 26px); }
.mega__links a {
  display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 13px 0;
  border-top: 1px solid var(--line-1); font-family: var(--font-condensed); font-weight: 600;
  font-size: 15px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--frame-clearspan); text-decoration: none; transition: color .2s;
}
.mega__links a .material-symbols-sharp { font-size: 18px; color: var(--frame-conduit); opacity: 0; transform: translateX(-6px); transition: opacity .2s, transform .25s var(--ease-standard); }
.mega__links a:hover { color: var(--frame-conduit); text-decoration: none; }
.mega__links a:hover .material-symbols-sharp { opacity: 1; transform: none; }
.mega__eyebrow { font-family: var(--font-condensed); font-weight: 600; font-size: 13px; letter-spacing: .18em; text-transform: uppercase; color: var(--frame-conduit); margin: 0 0 14px; }
.mega__card {
  display: block; border: 1px solid var(--line-2); background: var(--ink-850); text-decoration: none;
  transition: border-color .2s;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}
.mega__card:hover { border-color: var(--frame-conduit); text-decoration: none; }
.mega__card img { display: block; width: 100%; height: clamp(150px, 15vw, 220px); object-fit: cover; }
.mega__card-pad { display: block; padding: 18px 20px 22px; }
.mega__card-t { display: block; font-family: var(--font-display); font-weight: 800; text-transform: uppercase; letter-spacing: -.01em; font-size: 20px; line-height: 1.05; color: var(--frame-clearspan); }
.mega__card-s { display: block; margin-top: 8px; font-family: var(--font-body); font-size: 15.5px; line-height: 1.5; color: var(--frame-galvanized); }
@media (max-width: 880px) { .mega { display: none; } }
/* fixed page furniture (chapter rail) must not float over an open panel —
   covers browsers still holding the old enhancements.css (rail z-index 310) */
.crail { transition: opacity .25s; }
body:has(.nav--mega) .crail { opacity: 0 !important; pointer-events: none; }