/* ==========================================================================
   Faithful — Bespoke AI for regulated environments
   ========================================================================== */

:root {
  --bg: #07080a;
  --bg-elev: #0d0f12;
  --ink: #edebe6;
  --ink-2: #a3a29c;
  --ink-3: #66665f;
  --line: rgba(237, 235, 230, 0.13);
  --line-soft: rgba(237, 235, 230, 0.07);
  --accent: #b4c4ff;

  --sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Instrument Serif", "Iowan Old Style", "Times New Roman", serif;
  --mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --gutter: clamp(16px, 3.2vw, 48px);
  --col-gap: clamp(12px, 1.4vw, 24px);
  --header-h: clamp(64px, 8vh, 84px);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.76, 0, 0.24, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  background: var(--bg);
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

html.js:not(.is-ready) body { overflow: hidden; }

h1, h2, h3, p, ol, ul, figure { margin: 0; padding: 0; }
ol, ul { list-style: none; }
img, svg { display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }

em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}

::selection { background: var(--ink); color: var(--bg); }
:focus-visible { outline: 1px solid var(--accent); outline-offset: 4px; }

/* Lenis */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: clip; }

/* ---------- Utilities ---------- */
.mono {
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.dim { color: var(--ink-3); }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 12px;
  transform: translateY(-200%);
}
.skip-link:focus { transform: none; }

/* ==========================================================================
   Preloader
   ========================================================================== */
.preloader { display: none; }

html.js .preloader {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--ink);
}
html.is-ready .preloader { visibility: hidden; pointer-events: none; }

.preloader__inner {
  display: flex;
  align-items: center;
  gap: clamp(14px, 1.6vw, 24px);
}
.preloader__mark { width: clamp(38px, 4vw, 56px); height: auto; }
.preloader__square { stroke-dasharray: 176; stroke-dashoffset: 0; }
.preloader__word {
  display: flex;
  overflow: hidden;
  font-size: clamp(2.6rem, 6vw, 5.2rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 1;
  padding: 0.05em 0.04em 0.12em 0;
}
.preloader__word span { display: inline-block; }
.preloader__foot {
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: calc(var(--gutter) + 14px);
  display: flex;
  justify-content: space-between;
  color: var(--ink-2);
}
.preloader__bar {
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: var(--gutter);
  height: 1px;
  background: var(--line-soft);
}
.preloader__bar span {
  display: block;
  height: 100%;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
}

/* ==========================================================================
   Ambient layers
   ========================================================================== */
.bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.bg__vanta { position: absolute; inset: 0; }
.bg__vanta canvas { width: 100% !important; height: 100% !important; }

.bg__fallback {
  position: absolute;
  inset: 0;
  opacity: 0;
  background:
    radial-gradient(60% 50% at 70% 45%, rgba(180, 196, 255, 0.10), transparent 70%),
    radial-gradient(40% 40% at 20% 80%, rgba(237, 235, 230, 0.05), transparent 70%);
}
html.no-webgl .bg__fallback { opacity: 1; }

.bg__vignette {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(7, 8, 10, 0.8) 0%, rgba(7, 8, 10, 0) 24%),
    linear-gradient(to top, rgba(7, 8, 10, 0.35) 0%, rgba(7, 8, 10, 0) 22%),
    radial-gradient(130% 95% at 50% 45%, transparent 55%, rgba(7, 8, 10, 0.65) 100%);
}

.grain {
  position: fixed;
  inset: -100%;
  z-index: 90;
  pointer-events: none;
  opacity: 0.055;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 0.9s steps(5) infinite;
}
@keyframes grain {
  0% { transform: translate(0, 0); }
  20% { transform: translate(-3%, 2%); }
  40% { transform: translate(2%, -4%); }
  60% { transform: translate(-4%, -1%); }
  80% { transform: translate(3%, 3%); }
  100% { transform: translate(0, 0); }
}

main, .footer { position: relative; z-index: 2; }

/* ==========================================================================
   Cursor
   ========================================================================== */
.cursor { display: none; }

html.has-cursor, html.has-cursor * { cursor: none !important; }
html.has-cursor .cursor {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 95;
  pointer-events: none;
  mix-blend-mode: difference;
  opacity: 0;
  transition: opacity 0.3s;
}
html.has-cursor .cursor.is-visible { opacity: 1; }

.cursor__dot,
.cursor__ring {
  position: fixed;
  top: 0;
  left: 0;
  border-radius: 50%;
  will-change: transform;
}
.cursor__dot {
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  background: #fff;
  transition: opacity 0.3s;
}
.cursor__ring {
  width: 38px;
  height: 38px;
  margin: -19px 0 0 -19px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  display: grid;
  place-items: center;
  transition:
    width 0.6s var(--ease), height 0.6s var(--ease), margin 0.6s var(--ease),
    background-color 0.4s, border-color 0.4s;
}
.cursor__label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #000;
  opacity: 0;
  transition: opacity 0.3s;
}
.cursor.is-hover .cursor__ring {
  width: 64px;
  height: 64px;
  margin: -32px 0 0 -32px;
  border-color: #fff;
}
.cursor.has-label .cursor__ring {
  width: 92px;
  height: 92px;
  margin: -46px 0 0 -46px;
  background: #fff;
  border-color: #fff;
}
.cursor.has-label .cursor__label { opacity: 1; }
.cursor.has-label .cursor__dot,
.cursor.is-hover .cursor__dot { opacity: 0; }

/* ==========================================================================
   Header
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  height: var(--header-h);
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: transform 0.8s var(--ease);
}
.header::before {
  content: "";
  position: absolute;
  inset: 0 0 -30px;
  z-index: -1;
  background: linear-gradient(to bottom, rgba(7, 8, 10, 0.9), rgba(7, 8, 10, 0));
  opacity: 0;
  transition: opacity 0.6s;
  pointer-events: none;
}
.header.is-scrolled::before { opacity: 1; }
.header.is-hidden { transform: translateY(-110%); }
html.menu-open .header { transform: none; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
}
.brand__mark { width: 19px; height: 19px; transition: transform 0.8s var(--ease); }
.brand:hover .brand__mark { transform: rotate(90deg); }
.brand__word {
  font-size: 1.3rem;
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1;
  transform: translateY(-1px);
}

.header__status {
  position: absolute;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-2);
  transform: translateX(-50%);
  white-space: nowrap;
}
.header__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.2vw, 34px);
}
.nav__link {
  position: relative;
  color: var(--ink-2);
  transition: color 0.3s;
}
.nav__link:hover { color: var(--ink); }
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.6s var(--ease);
}
.nav__link:hover::after { transform: scaleX(1); transform-origin: left; }

.nav__cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 100px;
  overflow: hidden;
  isolation: isolate;
  transition: color 0.5s var(--ease), border-color 0.5s;
}
.nav__cta::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--ink);
  border-radius: inherit;
  transform: translateY(115%);
  transition: transform 0.6s var(--ease);
}
.nav__cta:hover { color: var(--bg); border-color: var(--ink); }
.nav__cta:hover::before { transform: none; }

.menu-toggle {
  display: none;
  align-items: center;
  gap: 12px;
}
.menu-toggle__icon {
  position: relative;
  width: 22px;
  height: 10px;
}
.menu-toggle__icon i {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: currentColor;
  transition: transform 0.6s var(--ease), top 0.6s var(--ease);
}
.menu-toggle__icon i:first-child { top: 1px; }
.menu-toggle__icon i:last-child { top: 8px; }
html.menu-open .menu-toggle__icon i:first-child { top: 4.5px; transform: rotate(45deg); }
html.menu-open .menu-toggle__icon i:last-child { top: 4.5px; transform: rotate(-45deg); }

/* Mobile menu */
.menu {
  position: fixed;
  inset: 0;
  z-index: 35;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: calc(var(--header-h) + 6vh) var(--gutter) var(--gutter);
  background: var(--bg);
  visibility: hidden;
  clip-path: inset(0 0 100% 0);
}
html.menu-open .menu { visibility: visible; }
.menu__nav { display: flex; flex-direction: column; }
.menu__nav a {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: clamp(2.4rem, 11vw, 4rem);
  letter-spacing: -0.05em;
  line-height: 1.05;
}
.menu__nav a .mono { color: var(--ink-3); transform: translateY(-0.9em); }
.menu__foot {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--ink-2);
}

/* ==========================================================================
   Shared section styles
   ========================================================================== */
.section {
  position: relative;
  padding: clamp(110px, 20vh, 220px) var(--gutter);
}

.section__label {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink-2);
}
.section__label .idx { color: var(--ink-3); display: inline-flex; align-items: center; gap: 12px; }
.section__label .idx::after {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--line);
}

.section__head {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--col-gap);
  row-gap: clamp(28px, 5vh, 56px);
  margin-bottom: clamp(56px, 11vh, 130px);
}
.section__head > * { grid-column: 1 / -1; }

.section__title {
  font-size: clamp(2.7rem, 6.6vw, 7.4rem);
  font-weight: 400;
  line-height: 0.94;
  letter-spacing: -0.052em;
  max-width: 13em;
}
.section__title em { letter-spacing: -0.025em; }

.section__intro {
  color: var(--ink-2);
  font-size: clamp(1rem, 1.15vw, 1.15rem);
  max-width: 36ch;
}
.section__head .section__intro { grid-column: 7 / span 5; }

/* SplitText masks: leave room for descenders and italic overhang */
.split-line-mask { padding: 0 0.08em 0.1em 0; margin: 0 -0.08em -0.1em 0; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  padding: calc(var(--header-h) + 3vh) var(--gutter) clamp(20px, 3.6vh, 40px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero__meta,
.hero__bar,
.section__intro,
.cap__desc,
.principle__text,
.principle__list,
.step__body p,
.cta__text {
  text-shadow: 0 1px 16px rgba(7, 8, 10, 0.95), 0 0 4px rgba(7, 8, 10, 0.6);
}

.hero__meta {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--col-gap);
  color: var(--ink);
}
.hero__meta-item { grid-column: 1 / span 3; }
.hero__meta-item--mid { grid-column: 4 / span 4; padding-left: 0; }

.hero__title {
  font-size: clamp(3.1rem, 10.4vw, 13rem);
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: -0.058em;
  margin-left: -0.04em;
}
.line {
  display: block;
  overflow: hidden;
  padding: 0 0.1em 0.16em 0;
  margin-bottom: -0.16em;
}
.line__inner { display: inline-block; will-change: transform; }
.line--indent { padding-left: calc(25% + 0.02em); }
.hero__title em {
  font-size: 1.1em;
  line-height: 0.8;
  letter-spacing: -0.03em;
  padding-right: 0.06em;
}

.shimmer {
  background: linear-gradient(100deg, var(--ink) 0%, var(--ink) 35%, var(--accent) 50%, var(--ink) 65%, var(--ink) 100%);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shimmer 7s var(--ease-in-out) infinite;
}
@keyframes shimmer {
  0% { background-position: 100% 0; }
  60%, 100% { background-position: 0% 0; }
}

.hero__bar {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--col-gap);
  align-items: end;
  margin-top: clamp(24px, 4.5vh, 52px);
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}
.hero__scroll {
  grid-column: 1 / span 3;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--ink-2);
}
.hero__scroll-line {
  position: relative;
  width: 1px;
  height: 38px;
  background: var(--line);
  overflow: hidden;
}
.hero__scroll-line i {
  position: absolute;
  inset: 0;
  background: var(--ink);
  animation: scrollcue 2.2s var(--ease-in-out) infinite;
}
@keyframes scrollcue {
  0% { transform: translateY(-100%); }
  55% { transform: translateY(0); }
  100% { transform: translateY(100%); }
}
.hero__lede {
  grid-column: 7 / span 4;
  max-width: 40ch;
  font-size: clamp(0.95rem, 1.05vw, 1.08rem);
  line-height: 1.5;
}
.hero__lede .dim { display: block; margin-top: 6px; color: var(--ink-2); }
.hero__bar .link-arrow { grid-column: 11 / span 2; justify-self: end; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 6px;
  background: linear-gradient(currentColor, currentColor) left bottom / 100% 1px no-repeat;
  transition: background-size 0.7s var(--ease);
  white-space: nowrap;
}
.link-arrow svg { width: 12px; height: 12px; transition: transform 0.6s var(--ease); }
.link-arrow:hover { background-size: 0% 1px; background-position: right bottom; }
.link-arrow:hover svg { transform: translate(3px, -3px); }

/* ==========================================================================
   01 — Manifesto
   ========================================================================== */
.manifesto { padding-top: clamp(140px, 26vh, 280px); }
.manifesto__text {
  margin-top: clamp(40px, 8vh, 90px);
  max-width: 1500px;
  font-size: clamp(1.8rem, 3.85vw, 4.3rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.042em;
  text-indent: 25%;
}
.manifesto__text em { letter-spacing: -0.02em; }
.manifesto__text .w { text-indent: 0; will-change: opacity; }
.manifesto__foot {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--col-gap);
  margin-top: clamp(56px, 11vh, 120px);
}
.manifesto__foot p { grid-column: 7 / span 5; color: var(--ink-2); }

/* ==========================================================================
   02 — Capabilities
   ========================================================================== */
.caps { position: relative; }

.cap {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--col-gap);
  row-gap: 14px;
  align-items: baseline;
  padding: clamp(26px, 3.8vw, 48px) 0;
  isolation: isolate;
  transition: color 0.6s var(--ease);
}
.cap::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(var(--gutter) * -1);
  right: calc(var(--gutter) * -1);
  z-index: -1;
  background: var(--ink);
  clip-path: inset(100% 0 0 0);
  transition: clip-path 0.75s var(--ease);
}
.cap__line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line);
  transform-origin: left;
}
.cap__line--end { top: auto; bottom: 0; }
.cap__num { grid-column: 1 / span 1; color: var(--ink-3); transition: color 0.6s; }
.cap__title {
  grid-column: 2 / span 5;
  font-size: clamp(1.7rem, 3vw, 3.2rem);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.045em;
  transition: translate 0.8s var(--ease);
}
.cap__desc {
  grid-column: 7 / span 4;
  max-width: 44ch;
  color: var(--ink-2);
  transition: color 0.6s;
}
.cap__tags {
  grid-column: 11 / span 2;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  color: var(--ink-3);
  transition: color 0.6s;
}

@media (hover: hover) {
  .cap:hover { color: var(--bg); }
  .cap:hover::before { clip-path: inset(0 0 0 0); }
  .cap:hover .cap__title { translate: clamp(8px, 1.2vw, 20px) 0; }
  .cap:hover .cap__num,
  .cap:hover .cap__desc,
  .cap:hover .cap__tags { color: rgba(7, 8, 10, 0.66); text-shadow: none; }
}

/* ==========================================================================
   Sectors marquee
   ========================================================================== */
.sectors {
  position: relative;
  padding: clamp(70px, 13vh, 150px) 0;
  overflow: hidden;
}
.sectors__label {
  padding: 0 var(--gutter);
  margin-bottom: clamp(24px, 4vh, 44px);
  color: var(--ink);
}
.marquee {
  overflow: hidden;
  white-space: nowrap;
  user-select: none;
}
.marquee__track {
  display: flex;
  width: max-content;
  will-change: transform;
}
.marquee__set {
  display: flex;
  align-items: center;
  flex: none;
  font-size: clamp(3rem, 9vw, 10.5rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 1.08;
}
.marquee__set > span,
.marquee__set > em { padding: 0 0.22em; }
.marquee__set > em { letter-spacing: -0.03em; }
.marquee__set > i {
  flex: none;
  display: grid;
  place-items: center;
  width: 0.26em;
  height: 0.26em;
  border: 1px solid currentColor;
  opacity: 0.6;
}
.marquee__set > i::after {
  content: "";
  width: 52%;
  height: 52%;
  border-radius: 50%;
  background: currentColor;
}
.marquee--reverse { color: transparent; -webkit-text-stroke: 1px rgba(237, 235, 230, 0.4); }
.marquee--reverse .marquee__set > i { -webkit-text-stroke: 0; border-color: rgba(237, 235, 230, 0.4); }
.marquee--reverse .marquee__set > i::after { background: rgba(237, 235, 230, 0.4); }

/* ==========================================================================
   03 — Principles
   Base layout is stacked; JS adds .is-pinned for the scroll-driven version.
   ========================================================================== */
.principles { position: relative; }
.principles__pin {
  position: relative;
  padding: clamp(110px, 18vh, 200px) var(--gutter) 0;
}
.principles__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: clamp(40px, 8vh, 80px);
}
.principles__count { display: none; color: var(--ink); }
.principles__stage { position: relative; }

.principle {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--col-gap);
  row-gap: 18px;
  align-content: end;
  padding: clamp(36px, 7vh, 72px) 0;
  border-top: 1px solid var(--line);
}
.principle__num {
  grid-column: 1 / -1;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.8rem, 3.2vw, 3.4rem);
  line-height: 1;
  color: var(--accent);
}
.principle__title {
  grid-column: 1 / -1;
  margin-left: -0.05em;
  font-size: clamp(3.4rem, 14vw, 12rem);
  font-weight: 400;
  line-height: 0.84;
  letter-spacing: -0.068em;
}
.principle__title .char-mask { padding: 0 0.09em 0.06em 0; margin: 0 -0.09em -0.06em 0; }
.principle__text {
  grid-column: 1 / span 5;
  max-width: 34ch;
  font-size: clamp(1.1rem, 1.55vw, 1.55rem);
  line-height: 1.3;
  letter-spacing: -0.02em;
}
.principle__list {
  grid-column: 7 / span 4;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--ink-2);
}
.principle__list li { display: flex; align-items: center; gap: 10px; }
.principle__list li::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  border: 1px solid var(--accent);
}

.principles__index {
  display: none;
  grid-template-columns: repeat(4, 1fr);
  column-gap: var(--col-gap);
}
.principles__index li {
  position: relative;
  display: flex;
  gap: 10px;
  padding-top: 14px;
  color: var(--ink-3);
  transition: color 0.5s;
}
.principles__index li.is-active { color: var(--ink); }
.principles__index li span { color: var(--ink-3); }
.principles__index i {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line);
}
.principles__index b {
  display: block;
  height: 100%;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
}

.principles.is-pinned .principles__pin {
  height: 100vh;
  height: 100svh;
  padding: calc(var(--header-h) + 3vh) var(--gutter) clamp(22px, 4vh, 44px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.principles.is-pinned .principles__head { margin-bottom: 0; }
.principles.is-pinned .principles__count { display: block; }
.principles.is-pinned .principles__stage { flex: 1; }
.principles.is-pinned .principle {
  position: absolute;
  inset: 0;
  row-gap: 0;
  padding: 0 0 clamp(24px, 5vh, 56px);
  border-top: 0;
}
.principles.is-pinned .principle__title {
  margin: 0.04em 0 clamp(20px, 4vh, 44px) -0.05em;
  font-size: clamp(4rem, 16.5vw, 19rem);
}
.principles.is-pinned .principles__index { display: grid; }

/* ==========================================================================
   04 — Process
   Base layout is stacked; JS adds .is-horizontal for the pinned scroller.
   ========================================================================== */
.process { position: relative; }
.process__pin {
  position: relative;
  padding: clamp(110px, 18vh, 200px) 0 clamp(40px, 8vh, 80px);
}
.process__track {
  display: flex;
  flex-direction: column;
  padding: 0 var(--gutter);
}
.process__intro {
  display: flex;
  flex-direction: column;
  gap: clamp(28px, 5vh, 56px);
  padding-bottom: clamp(48px, 9vh, 100px);
}
.process__intro .section__title { font-size: clamp(2.6rem, 5.4vw, 6.2rem); }

.step {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--col-gap);
  row-gap: 24px;
  align-items: start;
  padding: clamp(28px, 5vh, 48px) 0;
  border-top: 1px solid var(--line);
}
.step__num {
  grid-column: 1 / span 3;
  display: block;
  font-size: clamp(4rem, 9vw, 11.5rem);
  font-weight: 300;
  line-height: 0.8;
  letter-spacing: -0.07em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(237, 235, 230, 0.35);
}
.step__body { grid-column: 4 / span 5; }
.step__meta { grid-column: 10 / span 3; }
.step__title {
  margin-bottom: 14px;
  font-size: clamp(1.8rem, 2.7vw, 2.9rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.045em;
}
.step__body p { max-width: 34ch; color: var(--ink-2); }
.step__meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}

.process__progress {
  display: none;
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: clamp(24px, 5vh, 52px);
  height: 1px;
  background: var(--line-soft);
}
.process__progress span {
  display: block;
  height: 100%;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
}

.process.is-horizontal .process__pin {
  height: 100vh;
  height: 100svh;
  padding: 0;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.process.is-horizontal .process__track {
  flex-direction: row;
  align-items: stretch;
  width: max-content;
  height: min(66vh, 640px);
  will-change: transform;
}
.process.is-horizontal .process__intro {
  flex: none;
  width: min(42vw, 680px);
  padding: 0 6vw 0 0;
  justify-content: space-between;
}
.process.is-horizontal .step {
  flex: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 32px;
  width: clamp(300px, 29vw, 470px);
  padding: 0 clamp(20px, 2.4vw, 40px);
  border-top: 0;
  border-left: 1px solid var(--line);
}
.process.is-horizontal .process__progress { display: block; }

/* ==========================================================================
   05 — CTA
   ========================================================================== */
.cta {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.cta__title {
  margin: clamp(32px, 7vh, 80px) 0 clamp(36px, 7vh, 80px);
  font-size: clamp(3.2rem, 10.4vw, 13rem);
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: -0.058em;
  max-width: 10em;
}
.cta__title em { letter-spacing: -0.03em; }
.cta__row {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--col-gap);
  align-items: center;
}
.cta__text {
  grid-column: 1 / span 5;
  max-width: 38ch;
  font-size: clamp(1.1rem, 1.5vw, 1.5rem);
  line-height: 1.35;
  letter-spacing: -0.015em;
  color: var(--ink-2);
}
.cta__button {
  grid-column: 9 / span 4;
  justify-self: end;
  position: relative;
  display: grid;
  place-items: center;
  width: clamp(150px, 15vw, 220px);
  aspect-ratio: 1;
  border: 1px solid rgba(237, 235, 230, 0.32);
  border-radius: 50%;
  overflow: hidden;
  isolation: isolate;
  text-align: center;
  transition: color 0.6s var(--ease), border-color 0.6s;
}
.cta__button-fill {
  position: absolute;
  inset: -1px;
  z-index: -1;
  background: var(--ink);
  border-radius: 50%;
  transform: translateY(102%);
  transition: transform 0.75s var(--ease);
}
.cta__button-text {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.5;
}
.cta__button svg {
  position: absolute;
  bottom: 22%;
  width: 14px;
  height: 14px;
  transition: transform 0.6s var(--ease);
}
.cta__button:hover { color: var(--bg); border-color: var(--ink); }
.cta__button:hover .cta__button-fill { transform: none; }
.cta__button:hover svg { transform: translate(3px, -3px); }

.cta__email {
  align-self: flex-start;
  margin-top: clamp(48px, 10vh, 110px);
  padding-bottom: 6px;
  font-size: clamp(1.3rem, 2.8vw, 2.9rem);
  letter-spacing: -0.04em;
  background: linear-gradient(currentColor, currentColor) left bottom / 0% 1px no-repeat;
  transition: background-size 0.8s var(--ease);
}
.cta__email:hover { background-size: 100% 1px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding: clamp(64px, 10vh, 110px) var(--gutter) 22px;
  border-top: 1px solid var(--line);
  background: linear-gradient(to bottom, rgba(7, 8, 10, 0.2), rgba(7, 8, 10, 0.9) 60%);
  overflow: hidden;
}
.footer__top {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--col-gap);
  row-gap: 40px;
}
.footer__col:nth-child(1) { grid-column: 1 / span 4; }
.footer__col:nth-child(2) { grid-column: 5 / span 3; }
.footer__col:nth-child(3) { grid-column: 8 / span 3; }
.footer__col:nth-child(4) { grid-column: 11 / span 2; }
.footer__col--end { justify-self: end; }
.footer__tag {
  margin-top: 14px;
  font-size: clamp(1.2rem, 1.6vw, 1.6rem);
  line-height: 1.15;
  letter-spacing: -0.035em;
}
.footer__nav { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; color: var(--ink-2); }
.footer__nav a { transition: color 0.3s; }
.footer__nav a:hover { color: var(--ink); }
.footer__clock { margin-top: 6px; font-size: 0.85rem; color: var(--ink); font-variant-numeric: tabular-nums; }

.totop {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  border-radius: 100px;
  transition: border-color 0.4s;
}
.totop svg { width: 12px; height: 12px; transition: transform 0.6s var(--ease); }
.totop:hover { border-color: var(--ink); }
.totop:hover svg { transform: translateY(-3px); }

.footer__word {
  margin: clamp(48px, 10vh, 120px) 0 clamp(14px, 2.5vh, 28px);
  overflow: hidden;
  line-height: 0.76;
  white-space: nowrap;
  font-size: 25.4vw;
}
.footer__word-inner {
  display: inline-flex;
  font-weight: 500;
  letter-spacing: -0.075em;
  padding: 0 0.04em 0.06em 0;
  margin-left: -0.045em;
}
.footer__word-inner span { display: inline-block; }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  color: var(--ink-2);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1180px) {
  .header__status { display: none; }
}

@media (max-width: 1100px) and (min-width: 900px) {
  .cap__tags { display: none; }
  .cap__desc { grid-column: 7 / span 6; }
}

@media (max-width: 899px) {
  .nav { display: none; }
  .menu-toggle { display: inline-flex; }

  .hero__meta-item { grid-column: 1 / span 7; }
  .hero__meta-item--mid { display: none; }
  .hero__title { font-size: clamp(3rem, 13.2vw, 7rem); }
  .line--indent { padding-left: 12%; }
  .hero__bar { row-gap: 22px; }
  .hero__scroll { display: none; }
  .hero__lede { grid-column: 1 / -1; }
  .hero__bar .link-arrow { grid-column: 1 / -1; justify-self: start; }

  .manifesto__text { text-indent: 12%; }
  .manifesto__foot p { grid-column: 1 / -1; }

  .section__head .section__intro { grid-column: 1 / -1; }

  .cap { row-gap: 10px; }
  .cap__num { grid-column: 1 / -1; }
  .cap__title { grid-column: 1 / -1; }
  .cap__desc { grid-column: 1 / -1; }
  .cap__tags { grid-column: 1 / -1; flex-direction: row; flex-wrap: wrap; align-items: center; gap: 4px 16px; }

  .principle__text { grid-column: 1 / -1; }
  .principle__list { grid-column: 1 / -1; margin-top: 8px; }

  .step__num, .step__body, .step__meta { grid-column: 1 / -1; }
  .step__num { font-size: clamp(4rem, 18vw, 7rem); }

  .cta__row { row-gap: 40px; }
  .cta__text { grid-column: 1 / -1; }
  .cta__button { grid-column: 1 / -1; justify-self: start; }

  .footer__col:nth-child(1) { grid-column: 1 / -1; }
  .footer__col:nth-child(2) { grid-column: 1 / span 6; }
  .footer__col:nth-child(3) { grid-column: 7 / span 6; }
  .footer__col:nth-child(4) { grid-column: 1 / -1; justify-self: start; }
  .footer__bottom { flex-direction: column; }
}

@media (max-width: 520px) {
  .hero__title { font-size: 13.4vw; }
  .marquee__set { font-size: 15vw; }
}

/* ==========================================================================
   Reduced motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .grain { display: none; }
}