/* The Longevity Lab
   One deliberate dark theme: near-black with a green bias, warm bone text,
   a single brass accent, and the original geometric logotype rebuilt in type. */

:root {
  --ink: #0B100D;
  --ink-2: #0E140F;
  --ink-3: #131A15;
  --ink-deep: #070A08;
  --bone: #EDE8DC;
  --bone-70: rgba(237, 232, 220, 0.72);
  --bone-45: rgba(237, 232, 220, 0.46);
  --bone-25: rgba(237, 232, 220, 0.25);
  --brass: #B99A5E;
  --brass-2: #D6B97C;
  --sage: #8DA48E;
  --moss: #2F4A3A;
  --line: rgba(237, 232, 220, 0.11);
  --line-2: rgba(237, 232, 220, 0.24);
  --font-display: "Newsreader", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --font-body: "Hanken Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --font-geo: "Jost", "Futura", "Avenir Next", "Helvetica Neue", Arial, sans-serif;
  --container: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --nav-h: 76px;
  --ease: cubic-bezier(0.22, 0.7, 0.2, 1);
  --display-settings: normal;
  color-scheme: dark;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
  -webkit-text-size-adjust: 100%;
}
html.is-open { overflow: hidden; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--bone);
  font: 400 1.0625rem/1.6 var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

::selection { background: var(--brass); color: var(--ink); }
:focus-visible { outline: 2px solid var(--brass-2); outline-offset: 3px; }
img { max-width: 100%; height: auto; }
svg { display: inline-block; }

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

.skip {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--brass); color: var(--ink); padding: 10px 14px;
  border-radius: 4px; font-weight: 600; text-decoration: none;
  transition: top 0.2s;
}
.skip:focus { top: 16px; }

/* film grain over everything, barely there */
.grain {
  position: fixed; inset: 0; z-index: 60; pointer-events: none;
  opacity: 0.055; mix-blend-mode: screen;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.6 0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* scroll progress, a brass hairline along the top edge */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 70; pointer-events: none; }
.progress span {
  display: block; height: 100%; background: var(--brass);
  transform: scaleX(var(--sp, 0)); transform-origin: left;
}

/* vertical section readout, wide screens only */
.hud {
  position: fixed; left: 28px; top: 50%; z-index: 40;
  display: none; align-items: center; gap: 12px;
  transform: translate(-50%, -50%) rotate(-90deg);
  font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--bone-45); white-space: nowrap; pointer-events: none;
  opacity: 0; transition: opacity 0.5s var(--ease);
}
.hud.is-visible { opacity: 1; }
.hud__index { color: var(--brass); font-variant-numeric: tabular-nums; }
.hud__rule { width: 28px; height: 1px; background: var(--brass); }

/* ---------- the Xi mark and the logotype ---------- */

/* An empty inline-block rests its bottom edge on the baseline, so the bars
   span from the baseline to cap height like the letters around them. */
.xi { display: inline-block; position: relative; width: 0.78em; height: 0.7em; vertical-align: baseline; }
.xi i { position: absolute; left: 0; right: 0; height: max(1px, 0.045em); background: currentColor; transform-origin: left; }
.xi i:nth-child(1) { top: 0; }
.xi i:nth-child(2) { top: 50%; margin-top: calc(-0.5 * max(1px, 0.045em)); left: 8%; right: 8%; }
.xi i:nth-child(3) { bottom: 0; }

.logo {
  --s: clamp(1.9rem, 8.6vw, 4.6rem);
  --track: 0.34em;
  display: grid; justify-items: center; text-align: center;
  font-family: var(--font-geo); text-transform: uppercase; color: var(--bone); line-height: 1;
}
.logo__the {
  font-size: calc(var(--s) * 0.27); font-weight: 400;
  letter-spacing: 0.62em; margin-right: -0.62em; color: var(--bone-70);
}
.logo__word {
  display: inline-block; white-space: nowrap;
  font-size: var(--s); font-weight: 300;
  letter-spacing: var(--track); margin-right: calc(var(--track) * -1);
  margin-top: calc(var(--s) * 0.24);
}
.xi--logo { margin-right: var(--track); }
.logo__lab {
  font-size: calc(var(--s) * 0.46); font-weight: 300;
  letter-spacing: 0.5em; margin-right: -0.5em; margin-top: calc(var(--s) * 0.22);
}
.logo__rule { width: calc(var(--s) * 1.3); height: 1px; background: var(--bone-45); margin-top: calc(var(--s) * 0.38); }
.logo__tag {
  display: inline-flex; align-items: center; gap: 0.9em; flex-wrap: wrap; justify-content: center;
  font-size: calc(var(--s) * 0.2); font-weight: 400;
  letter-spacing: 0.34em; margin-right: -0.34em; margin-top: calc(var(--s) * 0.36);
  color: var(--bone-70);
}
.logo__tag em { font-style: normal; font-weight: 300; color: var(--bone-45); }
@media (min-width: 720px) { .logo { --track: 0.42em; } }

/* ---------- type ---------- */

h1, h2, h3 { font-family: var(--font-display); font-weight: 500; margin: 0; }

h2 {
  font-size: clamp(2.2rem, 4.6vw, 3.7rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  text-wrap: balance;
  font-variation-settings: var(--display-settings);
}

.eyebrow {
  display: flex; align-items: center; gap: 14px;
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 0.74rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--sage);
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--brass); flex: none; }

.section__head { max-width: 46rem; }
.section__lead {
  margin: 24px 0 0; max-width: 38rem;
  font-size: clamp(1.1rem, 1.5vw, 1.3rem); line-height: 1.55;
  color: var(--bone-70);
}
.section__body { margin: 20px 0 0; max-width: 38rem; color: var(--bone-70); }

/* word-level masked reveal for headings */
.sw { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: 0.16em; margin-bottom: -0.16em; }
.si { display: inline-block; }
html.js .is-split .si {
  transform: translateY(115%);
  transition: transform 1s var(--ease);
  transition-delay: calc(var(--l, 0) * 100ms + var(--d, 0s));
}
html.js .in .is-split .si, html.js .is-split.in .si { transform: none; }

/* ---------- line icons: brass, hairline, trace themselves in on reveal ---------- */

.ico {
  display: block; width: 28px; height: 28px; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.25; stroke-linecap: round; stroke-linejoin: round;
  color: var(--brass);
}
.ico--small { width: 16px; height: 16px; stroke-width: 1.4; }
.ico .p {
  stroke-dasharray: 1; stroke-dashoffset: 0;
  transition: stroke-dashoffset 1.4s var(--ease) 0.25s;
}
html.js .reveal:not(.in) .ico .p { stroke-dashoffset: 1; }

/* ---------- buttons and links ---------- */

.btn {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 15px 24px;
  border: 1px solid var(--brass); border-radius: 4px;
  background: none; color: var(--brass-2);
  font: 500 0.95rem/1 var(--font-body); letter-spacing: 0.01em;
  text-decoration: none; cursor: pointer;
  position: relative; overflow: hidden; isolation: isolate;
  transition: color 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.5s var(--ease);
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--brass);
  transform: translateX(-101%);
  transition: transform 0.45s var(--ease);
}
.btn:hover, .btn:focus-visible { color: var(--ink); }
.btn:hover::before, .btn:focus-visible::before { transform: none; }
.btn svg { width: 16px; height: 16px; flex: none; transition: transform 0.35s var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn:disabled { opacity: 0.6; cursor: default; }
.btn--small { padding: 11px 18px; font-size: 0.88rem; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 0;
  color: var(--bone); font-weight: 500; font-size: 0.98rem; text-decoration: none;
  border-bottom: 1px solid var(--line-2);
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.link-arrow svg { width: 15px; height: 15px; transition: transform 0.35s var(--ease); }
.link-arrow:hover { border-color: var(--brass); color: var(--brass-2); }
.link-arrow:hover svg { transform: translateX(3px); }
.link-arrow--down:hover svg { transform: translateY(3px); }

/* ---------- nav ---------- */

.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background 0.45s var(--ease), border-color 0.45s var(--ease);
}
.nav.is-scrolled {
  background: rgba(11, 16, 13, 0.78);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  backdrop-filter: blur(14px) saturate(120%);
  border-color: var(--line);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  height: var(--nav-h);
}
.brand { display: inline-flex; align-items: center; gap: 14px; color: var(--bone); text-decoration: none; }
.brand__xi { width: 18px; height: 15px; color: var(--brass); }
.brand__xi i { height: 1.5px; }
.brand__name {
  display: inline-block; white-space: nowrap;
  font-family: var(--font-geo); font-weight: 400; font-size: 0.74rem;
  letter-spacing: 0.28em; text-transform: uppercase;
}
.xi--inline { width: 0.76em; height: 0.66em; margin-right: 0.28em; }
.xi--inline i { height: 1px; }

.nav__links { display: flex; gap: 34px; }
.nav__links a {
  position: relative; padding: 6px 0;
  color: var(--bone-70); font-size: 0.92rem; font-weight: 500; text-decoration: none;
  transition: color 0.3s;
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: var(--brass);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.nav__links a:hover, .nav__links a[aria-current="true"] { color: var(--bone); }
.nav__links a:hover::after, .nav__links a[aria-current="true"]::after { transform: scaleX(1); }

.nav__toggle {
  display: none; width: 44px; height: 44px; margin-right: -10px;
  background: none; border: 0; cursor: pointer; position: relative;
}
.nav__toggle span {
  position: absolute; left: 11px; width: 22px; height: 1.5px; background: var(--bone);
  transition: transform 0.35s var(--ease), top 0.35s var(--ease);
}
.nav__toggle span:first-child { top: 18px; }
.nav__toggle span:last-child { top: 25px; }
.nav__toggle[aria-expanded="true"] span:first-child { top: 21.5px; transform: rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { top: 21.5px; transform: rotate(-45deg); }

.menu {
  position: fixed; inset: 0; z-index: 45;
  background: var(--ink);
  padding-top: calc(var(--nav-h) + 24px);
  overflow-y: auto;
}
.menu__inner { display: flex; flex-direction: column; gap: 4px; padding-block: 8px 40px; }
.menu__inner a {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-display); font-size: 2.2rem; line-height: 1.1;
  font-variation-settings: var(--display-settings);
  color: var(--bone); text-decoration: none;
  opacity: 0; transform: translateY(14px);
}
.menu__inner a.menu__cta {
  margin-top: 28px; border: 0;
  font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--brass-2);
}
html.is-open .menu__inner a { animation: fade-up 0.6s var(--ease) forwards; animation-delay: calc(var(--i) * 60ms + 60ms); }

/* ---------- hero ---------- */

.hero {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: 100vh; min-height: 100svh;
  display: grid; place-items: center;
  padding: calc(var(--nav-h) + 40px) var(--gutter) 120px;
}
.hero__bg {
  position: absolute; inset: 0; z-index: -1;
  transform: translateY(calc(var(--hp, 0) * 90px));
}
.hero__photo {
  position: absolute; left: -5%; top: -5%; width: 110%; height: 110%;
  object-fit: cover; object-position: 55% 60%;
  opacity: 0;
  animation: drift 40s ease-in-out infinite alternate;
}
html.is-loaded .hero__photo { opacity: 0.66; transition: opacity 2.4s ease 0.2s; }
.hero__rings {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; mix-blend-mode: screen;
}
html.is-loaded .hero__rings { opacity: 0.85; transition: opacity 2.4s ease 0.9s; }
.hero__grid {
  position: absolute; inset: 0; opacity: 0.32;
  background-image: radial-gradient(rgba(237, 232, 220, 0.25) 1px, transparent 1.3px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse 55% 55% at 50% 50%, #000 15%, transparent 72%);
  mask-image: radial-gradient(ellipse 55% 55% at 50% 50%, #000 15%, transparent 72%);
}
.hero__vignette {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 72% 66% at 50% 46%, transparent 32%, rgba(11, 16, 13, 0.72) 100%),
    linear-gradient(180deg, rgba(11, 16, 13, 0.6) 0%, transparent 26%, transparent 68%, var(--ink) 100%);
}

.hero__corners { position: absolute; inset: 0; pointer-events: none; }
.corner {
  position: absolute;
  font-family: var(--font-geo); font-size: 0.62rem; letter-spacing: 0.3em; text-transform: uppercase;
  line-height: 1.8; color: var(--bone-45);
  opacity: 0;
}
html.is-loaded .corner { animation: fade-in 1.4s ease 2.1s forwards; }
.corner--tl { top: calc(var(--nav-h) + 28px); left: var(--gutter); }
.corner--tr { top: calc(var(--nav-h) + 28px); right: var(--gutter); text-align: right; font-variant-numeric: tabular-nums; }
.corner--bl { bottom: 44px; left: var(--gutter); }
.corner--br { bottom: 44px; right: var(--gutter); text-align: right; }
.corner__rule { display: block; width: 36px; height: 1px; background: var(--bone-45); margin: 10px 0 0 auto; }

.logo--hero {
  --s: clamp(2.1rem, 9vw, 5rem);
  transform: translateY(calc(var(--hp, 0) * -70px)) scale(calc(1 - var(--hp, 0) * 0.1));
  opacity: calc(1 - var(--hp, 0) * 1.4);
}
html.js .logo--hero .logo__the, html.js .logo--hero .logo__lab, html.js .logo--hero .logo__tag { opacity: 0; transform: translateY(10px); }
html.js .logo--hero .logo__word { opacity: 0; }
html.js .logo--hero .logo__rule { opacity: 0; transform: scaleX(0); }
html.js .logo--hero .xi i { transform: scaleX(0); transform-origin: left; }
html.is-loaded .logo--hero .logo__word { animation: track-in 2.1s var(--ease) 0.25s forwards; }
html.is-loaded .logo--hero .xi i { animation: bar-in 0.7s var(--ease) forwards; }
html.is-loaded .logo--hero .xi i:nth-child(1) { animation-delay: 1.05s; }
html.is-loaded .logo--hero .xi i:nth-child(2) { animation-delay: 1.18s; }
html.is-loaded .logo--hero .xi i:nth-child(3) { animation-delay: 1.31s; }
html.is-loaded .logo--hero .logo__the { animation: fade-up 1.2s var(--ease) 0.95s forwards; }
html.is-loaded .logo--hero .logo__lab { animation: fade-up 1.2s var(--ease) 1.2s forwards; }
html.is-loaded .logo--hero .logo__rule { animation: rule-in 1.1s var(--ease) 1.55s forwards; }
html.is-loaded .logo--hero .logo__tag { animation: fade-up 1.2s var(--ease) 1.8s forwards; }
.logo--hero .xi i { box-shadow: 0 0 0 rgba(214, 185, 124, 0); }
html.is-loaded .logo--hero .xi { animation: glow 3.6s ease-in-out 2.6s infinite alternate; }

.hero__cue {
  position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  color: var(--bone-45); text-decoration: none;
  font-family: var(--font-geo); font-size: 0.6rem; letter-spacing: 0.34em; text-transform: uppercase;
  opacity: 0;
}
html.is-loaded .hero__cue { animation: fade-in 1.2s ease 2.6s forwards; }
.hero__cue-line { position: relative; width: 1px; height: 56px; background: var(--line-2); overflow: hidden; }
.hero__cue-line::after {
  content: ""; position: absolute; left: 0; top: -100%; width: 100%; height: 50%;
  background: var(--brass-2);
  animation: cue 2.2s cubic-bezier(0.6, 0, 0.3, 1) infinite;
}

/* ---------- marquee ---------- */

.marquee {
  overflow: hidden; padding: 18px 0;
  border-block: 1px solid var(--line); background: var(--ink);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track { display: flex; width: max-content; animation: marquee 52s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__set {
  display: flex; align-items: center; gap: 44px; padding-right: 44px;
  font-family: var(--font-geo); font-size: 0.72rem; letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--bone-45); white-space: nowrap;
}
.marquee__set i { width: 5px; height: 5px; background: var(--brass); transform: rotate(45deg); flex: none; }

/* ---------- sections ---------- */

.section { padding-block: clamp(88px, 11vw, 152px); border-top: 1px solid var(--line); }

/* intro */
.intro { border-top: 0; padding-block: clamp(96px, 12vw, 160px); }
.intro__grid {
  display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  gap: clamp(40px, 6vw, 96px); align-items: end;
}
.intro__title {
  margin: 22px 0 32px;
  font-size: clamp(3rem, 8vw, 6.6rem);
  line-height: 1; letter-spacing: -0.015em;
  font-variation-settings: var(--display-settings);
  text-wrap: balance;
}
.intro__sub {
  max-width: 34rem; margin: 0;
  font-size: clamp(1.05rem, 1.4vw, 1.25rem); line-height: 1.55;
  color: var(--bone-70);
}
.intro__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 32px; margin-top: 36px; }
.rail {
  list-style: none; margin: 0; padding: 0;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--bone-45);
}
.rail li { display: flex; align-items: center; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.rail li::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--brass); flex: none; }

/* philosophy */
.philosophy__grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(40px, 7vw, 120px); align-items: start;
}
.philosophy__copy { position: sticky; top: calc(var(--nav-h) + 40px); }
.principles { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.principle {
  position: relative;
  display: grid; grid-template-columns: minmax(0, 11rem) minmax(0, 1fr); gap: 16px 28px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}
.principle::after {
  content: ""; position: absolute; left: 0; bottom: -1px; height: 1px; width: 100%;
  background: var(--brass);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.7s var(--ease);
}
.principle:hover::after { transform: scaleX(1); }
.principle__lead { display: grid; gap: 16px; align-content: start; }
.principle__title { font-size: 1.55rem; line-height: 1.15; font-variation-settings: var(--display-settings); }
.principle:hover .ico, .area:hover .ico { color: var(--brass-2); }
.principle__text { margin: 0; color: var(--bone-70); }

/* expertise */
.expertise .section__head { margin-bottom: clamp(40px, 6vw, 64px); }
.areas {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 40px 32px;
}
.area { position: relative; padding-top: 24px; border-top: 1px solid var(--line); }
.area::before {
  content: ""; position: absolute; left: 0; top: -1px; height: 1px; width: 100%;
  background: var(--brass);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.7s var(--ease);
}
.area:hover::before { transform: scaleX(1); }
.area .ico { margin-bottom: 18px; }
.area__title { font-size: 1.5rem; line-height: 1.15; margin-bottom: 12px; }
.area__text { margin: 0; color: var(--bone-70); font-size: 1rem; }

/* method */
.method { background: var(--ink-2); }
.method .section__head { margin-bottom: clamp(56px, 8vw, 96px); }
.steps {
  list-style: none; margin: 0; padding: 40px 0 0;
  position: relative;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 40px 32px;
}
.steps::before, .steps::after { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px; }
.steps::before { background: var(--line); }
.steps::after {
  background: var(--brass);
  transform: scaleX(0); transform-origin: left;
  transition: transform 2.4s var(--ease) 0.2s;
}
.steps.in::after { transform: scale(1); }
.step { position: relative; }
.step::before {
  content: ""; position: absolute; left: 0; top: -44px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--brass);
  box-shadow: 0 0 0 4px var(--ink-2);
}
.step__num {
  display: block; margin-bottom: 20px;
  font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.14em;
  color: var(--brass); font-variant-numeric: tabular-nums;
}
.step__title { font-size: 1.5rem; line-height: 1.15; margin-bottom: 12px; font-variation-settings: var(--display-settings); }
.step__text { margin: 0; color: var(--bone-70); font-size: 1rem; }

/* who this is for */
.for .section__head { margin-bottom: clamp(40px, 6vw, 64px); }
.for__grid {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--line);
}
.for__item {
  padding: clamp(24px, 3.5vw, 40px);
  border: 1px solid var(--line); margin: -1px 0 0 -1px;
  font-size: clamp(1.05rem, 1.4vw, 1.2rem); line-height: 1.5;
  display: flex; gap: 18px; align-items: flex-start;
  transition: background 0.4s var(--ease);
}
.for__item::before {
  content: ""; flex: none; width: 10px; height: 10px; margin-top: 0.55em;
  border: 1px solid var(--brass);
  transition: background 0.4s var(--ease);
}
.for__item:hover { background: var(--ink-3); }
.for__item:hover::before { background: var(--brass); }
.for__close { margin: 40px 0 0; color: var(--bone-70); display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; }

/* coach */
.coach__grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(40px, 7vw, 110px); align-items: center;
}
.coach__figure { position: relative; margin: 0; }
.coach__media {
  position: relative;
  aspect-ratio: 954 / 1123; overflow: hidden;
  background: var(--ink-3);
}
.coach__media img {
  display: block; width: 100%; height: 100%;
  object-fit: cover; object-position: top;
  filter: saturate(0.92);
}
html.js .coach__media { clip-path: inset(0 0 100% 0); }
html.js .coach__figure.in .coach__media { clip-path: inset(0); transition: clip-path 1.3s var(--ease); }
html.js .coach__media img { transform: scale(1.08); }
html.js .coach__figure.in .coach__media img { transform: none; transition: transform 1.7s var(--ease); }
.coach__scan {
  position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--brass-2), transparent);
  box-shadow: 0 0 22px 3px rgba(214, 185, 124, 0.35);
  opacity: 0; pointer-events: none;
}
html.js .coach__figure.in .coach__scan { animation: scan 1.9s var(--ease) 0.5s 1 forwards; }
.coach__tag {
  position: absolute; left: 16px; bottom: 16px;
  padding: 8px 12px;
  background: rgba(11, 16, 13, 0.72); border: 1px solid var(--line-2);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--bone);
}
.coach__corners { position: absolute; inset: -14px; pointer-events: none; }
.coach__corners::before, .coach__corners::after {
  content: ""; position: absolute; width: 26px; height: 26px;
  border: 0 solid var(--brass); opacity: 0;
  transition: transform 0.9s var(--ease) 0.7s, opacity 0.9s ease 0.7s;
}
.coach__corners::before { top: 0; left: 0; border-top-width: 1px; border-left-width: 1px; transform: translate(10px, 10px); }
.coach__corners::after { bottom: 0; right: 0; border-bottom-width: 1px; border-right-width: 1px; transform: translate(-10px, -10px); }
.coach__figure.in .coach__corners::before, .coach__figure.in .coach__corners::after { opacity: 1; transform: none; }
.creds { list-style: none; margin: 32px 0 0; padding: 0; border-top: 1px solid var(--line); }
.creds li {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 14px 0; border-bottom: 1px solid var(--line);
  color: var(--bone-70);
}
.creds li::before { content: ""; flex: none; width: 6px; height: 6px; margin-top: 0.6em; border-radius: 50%; background: var(--brass); }

.quote {
  margin: clamp(56px, 8vw, 96px) 0 0; padding: clamp(40px, 5vw, 56px) 0 0;
  border-top: 1px solid var(--line);
  max-width: 54rem;
}
.quote p {
  margin: 0;
  font-family: var(--font-display); font-style: italic; font-weight: 400;
  font-size: clamp(1.6rem, 3.2vw, 2.6rem); line-height: 1.28; letter-spacing: 0;
}
.quote .w { display: inline-block; opacity: 0.22; transition: opacity 0.7s var(--ease); transition-delay: calc(var(--i) * 32ms); }
.quote.in .w { opacity: 1; }
.quote cite {
  display: block; margin-top: 24px;
  font-style: normal; font-family: var(--font-mono);
  font-size: 0.74rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--bone-45);
}
.quote cite::before { content: "\2014\00a0"; color: var(--brass); }

/* contact */
.contact { background: var(--ink-2); }
.contact__grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(40px, 7vw, 110px); align-items: start;
}
.direct { list-style: none; margin: 40px 0 0; padding: 0; border-top: 1px solid var(--line); }
.direct li { border-bottom: 1px solid var(--line); }
.direct a {
  display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap;
  padding: 18px 0;
  color: var(--bone); text-decoration: none; font-size: 1.05rem;
  transition: color 0.3s var(--ease);
}
.direct__k {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--bone-45);
}
.direct__v { position: relative; padding-right: 26px; word-break: break-word; }
.direct__v::after {
  content: "\2197"; position: absolute; right: 0; top: 0;
  color: var(--brass); transition: transform 0.35s var(--ease);
}
.direct a:hover { color: var(--brass-2); }
.direct a:hover .direct__v::after { transform: translate(3px, -3px); }

.form { display: grid; gap: 26px; padding-top: 6px; }
.form__hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; margin: 0; }
.field { display: grid; gap: 8px; }
.field label {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--bone-45);
}
.field input, .field textarea {
  width: 100%;
  background: transparent; border: 0; border-bottom: 1px solid var(--line-2); border-radius: 0;
  padding: 12px 0; color: var(--bone);
  font: inherit; font-size: 1.05rem; line-height: 1.5;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
  resize: vertical;
}
.field input:focus, .field textarea:focus {
  outline: none; border-bottom-color: var(--brass);
  box-shadow: 0 1px 0 0 var(--brass);
}
.field input:user-invalid, .field textarea:user-invalid { border-bottom-color: #C9744F; }
.form__foot { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; }
.form__note { margin: 0; font-size: 0.95rem; color: var(--bone-70); }
.form__note a { color: var(--brass-2); }
.form.is-sent .field, .form.is-sent .btn { opacity: 0.35; pointer-events: none; }
.form.is-sent .form__note { color: var(--bone); }

/* footer */
.footer { background: var(--ink-deep); border-top: 1px solid var(--line); padding-block: clamp(64px, 8vw, 104px) 40px; }
.logo--footer { --s: clamp(1.7rem, 4.2vw, 2.6rem); margin: 0 auto clamp(48px, 6vw, 80px); }
.footer__inner {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center;
  gap: 20px 40px; padding-top: 28px; border-top: 1px solid var(--line);
}
.footer__line, .footer__legal {
  margin: 0;
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--bone-45);
}
.footer__nav { display: flex; flex-wrap: wrap; gap: 8px 28px; }
.footer__nav a { color: var(--bone-70); text-decoration: none; font-size: 0.92rem; transition: color 0.3s; }
.footer__nav a:hover { color: var(--brass-2); }

/* ---------- scroll reveal ---------- */

html.js .reveal:not(.reveal--words) { opacity: 0; transform: translateY(18px); }
html.js .reveal.in {
  opacity: 1; transform: none;
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--d, 0s);
}
.no-anim, .no-anim * { transition: none !important; animation: none !important; }

@keyframes rise { to { transform: none; opacity: 1; } }
@keyframes fade-up { to { transform: none; opacity: 1; } }
@keyframes fade-in { to { opacity: 1; } }
@keyframes bar-in { to { transform: none; } }
@keyframes rule-in { to { opacity: 1; transform: scaleX(1); } }
@keyframes track-in {
  from { opacity: 0; letter-spacing: calc(var(--track) * 2.4); margin-right: calc(var(--track) * -2.4); }
  to { opacity: 1; letter-spacing: var(--track); margin-right: calc(var(--track) * -1); }
}
@keyframes glow {
  from { filter: drop-shadow(0 0 0 rgba(214, 185, 124, 0)); }
  to { filter: drop-shadow(0 0 10px rgba(214, 185, 124, 0.55)); }
}
@keyframes drift {
  from { transform: scale(1) translate(0, 0); }
  to { transform: scale(1.1) translate(-1.5%, 1.2%); }
}
@keyframes cue { to { top: 150%; } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes scan {
  0% { top: 0; opacity: 1; }
  85% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

/* ---------- responsive ---------- */

@media (min-width: 1200px) { .hud { display: flex; } }

@media (max-width: 1024px) {
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 48px 32px; }
  .areas { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .intro__grid { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .rail { max-width: 34rem; }
}

@media (max-width: 900px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: block; }
  .philosophy__grid, .coach__grid, .contact__grid { grid-template-columns: minmax(0, 1fr); }
  .philosophy__copy { position: static; }
  .coach__figure { max-width: 560px; }
  .principle { grid-template-columns: minmax(0, 1fr); gap: 14px; padding: 26px 0; }
  .principle__lead { grid-template-columns: auto 1fr; align-items: center; }
  .corner--tl, .corner--tr { display: none; }
}

@media (max-width: 720px) {
  :root { --nav-h: 66px; }
  .hero { padding-bottom: 200px; }
  .corner { font-size: 0.54rem; letter-spacing: 0.24em; }
  .corner--bl, .corner--br { bottom: 132px; }
  .corner--bl { max-width: 56%; }
  .corner--br { max-width: 38%; }
  .hero__cue { bottom: 28px; }
  .hero__cue-line { height: 40px; }
  .steps { grid-template-columns: minmax(0, 1fr); gap: 36px; padding: 0 0 0 30px; }
  .steps::before, .steps::after { top: 0; bottom: 0; right: auto; width: 1px; height: 100%; }
  .steps::after { transform: scaleY(0); transform-origin: top; }
  .step::before { left: -33px; top: 5px; }
  .for__grid, .areas { grid-template-columns: minmax(0, 1fr); }
  .intro__title { font-size: clamp(2.9rem, 13.5vw, 4.4rem); }
  .brand__name { font-size: 0.64rem; letter-spacing: 0.22em; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important; animation-delay: 0s !important; animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important; transition-delay: 0s !important;
  }
  html.js .reveal, .menu__inner a, .corner, .hero__cue,
  html.js .logo--hero .logo__the, html.js .logo--hero .logo__lab, html.js .logo--hero .logo__tag,
  html.js .logo--hero .logo__word, html.js .logo--hero .logo__rule { opacity: 1; transform: none; }
  html.js .logo--hero .xi i { transform: none; }
  html.js .logo--hero .logo__word { letter-spacing: var(--track); margin-right: calc(var(--track) * -1); }
  html.js .coach__media { clip-path: none; }
  html.js .coach__media img { transform: none; }
  .hero__photo { opacity: 0.66; }
  .hero__rings { opacity: 0.85; }
  .steps::after { transform: none; }
  .quote .w { opacity: 1; }
  .marquee__track { animation: none; }
  .marquee__set:nth-child(2) { display: none; }
  .hero__cue-line::after { display: none; }
}