/* Obsidian Copy — styles
   Palette: basalt / glass / ash / bone / sheen, with a tuff light section.
   Type: Unbounded (display, light weights) + Geist (text). */

:root {
  --basalt: #121316;
  --glass: #1b1d21;
  --rim: #2a2d33;
  --ash: #9a9ea6;
  --bone: #eaeae6;
  --sheen: #c5cbd3;
  --tuff: #d6d7d2;
  --ink: #16171a;
  --ink-soft: #4a4d54;

  --display: "Unbounded", "Helvetica Neue", Arial, sans-serif;
  --text: "Geist", "Helvetica Neue", Arial, sans-serif;

  --gutter: clamp(20px, 4.4vw, 64px);
  --max: 1320px;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --split: 40%;
  interpolate-size: allow-keywords;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
body {
  margin: 0;
  background: var(--basalt);
  color: var(--bone);
  font-family: var(--text);
  font-size: 17px;
  line-height: 1.6;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, video, iframe { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
p { margin: 0; }
h1, h2, h3 { margin: 0; font-weight: 300; }
ul, ol { margin: 0; padding: 0; list-style: none; }
::selection { background: var(--sheen); color: var(--basalt); }

:focus-visible { outline: 2px solid var(--sheen); outline-offset: 3px; border-radius: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: fixed; left: 16px; top: -60px; z-index: 100; background: var(--bone); color: var(--basalt); padding: 10px 16px; border-radius: 2px; font-weight: 500; transition: top .2s; }
.skip:focus { top: 16px; }

.wrap { width: min(100% - 2 * var(--gutter), var(--max)); margin-inline: auto; }

.h-section {
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(30px, 3.9vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.01em;
}

/* ---------- buttons & links ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 26px;
  background: var(--bone); color: var(--basalt);
  font-weight: 500; font-size: 15px; letter-spacing: 0.01em;
  border-radius: 2px;
  transition: background .4s var(--ease), transform .4s var(--ease);
}
.btn:hover { background: #fff; transform: translateY(-2px); }

.text-link {
  display: inline-block; padding: 6px 0;
  background: linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat;
  transition: background-size .5s var(--ease);
}
.text-link:hover { background-size: 0 1px; background-position: 100% 100%; }

/* ---------- nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px var(--gutter);
  transition: background .5s var(--ease), padding .5s var(--ease), backdrop-filter .5s;
}
.nav.is-solid {
  background: rgba(18, 19, 22, .72);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
  padding-block: 14px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .06);
}
.brand { display: flex; align-items: center; gap: 12px; font-family: var(--display); font-weight: 400; font-size: 13px; letter-spacing: 0.22em; text-transform: uppercase; }
.brand-mark path { fill: none; stroke: var(--bone); stroke-width: 1.2; }
.brand-mark .brand-facet { stroke-width: .8; opacity: .55; }
.nav-links { display: flex; align-items: center; gap: clamp(20px, 2.6vw, 40px); font-size: 12.5px; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 400; }
.nav-links a:not(.nav-cta) { position: relative; padding: 8px 0; }
.nav-links a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .5s var(--ease); }
.nav-links a:not(.nav-cta):hover::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { padding: 13px 20px; border: 1px solid rgba(234, 234, 230, .42); border-radius: 999px; transition: background .4s var(--ease), color .4s var(--ease), border-color .4s; }
.nav-cta:hover { background: var(--bone); color: var(--basalt); border-color: var(--bone); }
.nav-toggle { display: none; width: 44px; height: 44px; position: relative; }
.nav-toggle-bars, .nav-toggle-bars::before { position: absolute; left: 11px; right: 11px; height: 1px; background: var(--bone); transition: transform .4s var(--ease), top .4s var(--ease); }
.nav-toggle-bars { top: 18px; }
.nav-toggle-bars::before { content: ""; left: 0; right: 0; top: 8px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars { top: 22px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { top: 0; transform: rotate(-90deg); }

/* ---------- hero ---------- */
.hero { position: relative; height: 100vh; height: 100svh; min-height: 640px; overflow: hidden; background: var(--basalt); }
.hero-backdrop {
  position: absolute; inset: -40px;
  background: url("assets/hero-shard-blur.jpg") center / cover;
  filter: blur(14px) brightness(.42) saturate(.7);
  animation: settle 3.4s var(--ease) both;
}
.hero-frame {
  position: absolute;
  inset: clamp(76px, 10vh, 96px) var(--gutter) clamp(56px, 8vh, 80px);
  overflow: hidden; border-radius: 3px;
  box-shadow: 0 40px 120px rgba(0, 0, 0, .55);
  isolation: isolate;
}
.hero-media { position: absolute; inset: -6% 0; will-change: transform; }
.hero-video { width: 100%; height: 100%; object-fit: cover; object-position: 62% 50%; animation: settle 3.4s var(--ease) both; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10, 11, 13, 0) 45%, rgba(10, 11, 13, .28)), linear-gradient(0deg, rgba(10, 11, 13, .35), rgba(10, 11, 13, 0) 35%); }

/* the glass slab; its right edge is a fracture, not a ruler line */
.hero-glass {
  position: absolute; left: 0; top: 0; bottom: 0; width: var(--split);
  background: rgba(20, 21, 25, .3);
  -webkit-backdrop-filter: blur(26px) saturate(1.15);
  backdrop-filter: blur(26px) saturate(1.15);
  clip-path: polygon(0 0, 100% 0, calc(100% - 9px) 21%, calc(100% - 2px) 38%, calc(100% - 13px) 57%, calc(100% - 3px) 74%, calc(100% - 8px) 88%, 100% 100%, 0 100%);
  animation: slab 1.8s var(--ease) .1s both;
}
.hero-glass::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, 0) 40%);
}

.hero-word {
  position: absolute; left: 0; right: 0; top: 27%;
  display: flex; align-items: flex-start;
  font-family: var(--display);
  font-size: clamp(64px, min(10.6vw, 19vh), 168px);
  line-height: .9; letter-spacing: .01em;
  pointer-events: none;
}
.word-a {
  width: var(--split); text-align: right; padding-right: .035em;
  font-weight: 200;
  color: rgba(255, 255, 255, .17);
  text-shadow: 0 1px 0 rgba(255, 255, 255, .32), 0 24px 60px rgba(0, 0, 0, .3);
  animation: rise 1.5s var(--ease) .45s both;
}
.word-b {
  padding-left: .035em;
  font-weight: 300; color: #fff;
  transform: translateY(.075em);
  animation: riseB 1.5s var(--ease) .65s both;
}
.hero-tag {
  position: absolute; left: calc(var(--split) + .6vw);
  top: calc(27% + clamp(64px, min(10.6vw, 19vh), 168px) * 1.18);
  font-size: 13px; letter-spacing: .16em; text-transform: uppercase; font-weight: 500;
  color: #fff; text-shadow: 0 1px 14px rgba(0, 0, 0, .55), 0 0 2px rgba(0, 0, 0, .4);
  animation: rise 1.4s var(--ease) 1s both;
}

.hero-panel {
  position: absolute; left: clamp(24px, 3.2vw, 48px); bottom: clamp(24px, 5vh, 48px);
  width: calc(var(--split) - clamp(48px, 6.4vw, 96px));
  max-width: 440px;
  display: flex; flex-direction: column; gap: 20px;
  animation: rise 1.4s var(--ease) .9s both;
}
.slider-head { display: flex; align-items: center; gap: 22px; }
.slider-count { font-family: var(--display); font-weight: 200; font-size: 30px; line-height: 1; min-width: 2.2ch; font-variant-numeric: tabular-nums; }
.slider-dots { display: flex; gap: 2px; }
.slider-dots button { width: 22px; height: 22px; position: relative; }
.slider-dots button::before { content: ""; position: absolute; inset: 7px; border-radius: 50%; border: 1px solid rgba(234, 234, 230, .6); transition: background .4s, border-color .4s, transform .4s var(--ease); }
.slider-dots button[aria-selected="true"]::before { background: var(--bone); border-color: var(--bone); transform: scale(1.1); }
.slides { display: grid; }
.slide { grid-area: 1 / 1; opacity: 0; transform: translateY(14px); filter: blur(6px); transition: opacity .8s var(--ease), transform .8s var(--ease), filter .8s var(--ease); visibility: hidden; }
.slide.is-active { opacity: 1; transform: none; filter: none; visibility: visible; }
.slide h2 { font-family: var(--display); font-weight: 300; font-size: clamp(18px, 1.5vw, 22px); letter-spacing: .03em; margin-bottom: 10px; }
.slide p { font-size: 15px; line-height: 1.6; color: rgba(234, 234, 230, .84); }

.line-cta { display: inline-flex; align-items: center; gap: 18px; padding: 10px 0; font-size: 13px; letter-spacing: .16em; text-transform: uppercase; font-weight: 400; align-self: flex-start; }
.line-cta-rule { position: relative; width: 112px; height: 1px; background: var(--bone); transform-origin: left; transition: width .6s var(--ease); animation: draw 1.4s var(--ease) 1.5s both; }
.line-cta-rule::after { content: ""; position: absolute; right: 0; top: -4px; width: 8px; height: 8px; border-top: 1px solid var(--bone); border-right: 1px solid var(--bone); transform: rotate(45deg); }
.line-cta:hover .line-cta-rule { width: 150px; }

.hero-facts { position: absolute; right: clamp(24px, 3vw, 44px); bottom: clamp(24px, 5vh, 46px); display: flex; gap: 28px; font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: rgba(255, 255, 255, .86); text-shadow: 0 1px 12px rgba(0, 0, 0, .6); animation: rise 1.4s var(--ease) 1.2s both; }
.hero-scroll { position: absolute; right: var(--gutter); bottom: clamp(16px, 2.6vh, 26px); font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: rgba(234, 234, 230, .6); padding: 4px 0; }
.hero-scroll::after { content: ""; display: inline-block; width: 1px; height: 12px; margin-left: 10px; vertical-align: -2px; background: currentColor; animation: drip 2.4s var(--ease) 2s infinite; transform-origin: top; }

@keyframes settle { from { transform: scale(1.14); } to { transform: scale(1); } }
@keyframes slab { from { opacity: 0; transform: translateX(-28px); } to { opacity: 1; transform: none; } }
@keyframes rise { from { opacity: 0; transform: translateY(32px); filter: blur(10px); } to { opacity: 1; transform: none; filter: blur(0); } }
@keyframes riseB { from { opacity: 0; transform: translateY(calc(.075em + 32px)); filter: blur(10px); } to { opacity: 1; transform: translateY(.075em); filter: blur(0); } }
@keyframes draw { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes drip { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* ---------- statement ---------- */
.statement { padding: clamp(96px, 14vw, 200px) 0 clamp(80px, 10vw, 150px); }
.statement-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(40px, 5vw, 72px) clamp(40px, 6vw, 100px); }
.statement-lead { grid-column: 1 / -1; }
.statement-body { grid-column: 2; }
.statement-lead { font-family: var(--display); font-weight: 300; font-size: clamp(28px, 3.5vw, 52px); line-height: 1.14; letter-spacing: -0.012em; }
.statement-lead .ln { display: block; overflow: hidden; padding-bottom: .06em; }
.statement-lead .ln > span { display: block; transition: transform 1.3s var(--ease), opacity 1.3s var(--ease); }
.js .statement-lead:not(.is-in) .ln > span { transform: translateY(105%); opacity: 0; }
.statement-lead .ln:nth-child(2) > span { transition-delay: .09s; }
.statement-lead .ln:nth-child(3) > span { transition-delay: .18s; }
.statement-lead .ln:nth-child(4) > span { transition-delay: .27s; }
.statement-body { display: flex; flex-direction: column; gap: 18px; max-width: 46ch; color: rgba(234, 234, 230, .82); }
.statement-body .text-link { align-self: flex-start; color: var(--bone); margin-top: 8px; }

/* ---------- system / strata ---------- */
.system { padding: clamp(40px, 6vw, 80px) 0 clamp(40px, 5vw, 70px); }
.system-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 80px); align-items: end; margin-bottom: clamp(44px, 6vw, 80px); }
.system-intro { color: rgba(234, 234, 230, .78); max-width: 48ch; }

.strata { display: flex; flex-direction: column; }
.stratum {
  --tone: #1d1f23; --tilt: 0px;
  position: relative;
  background: var(--tone);
  margin-top: -14px;
  padding-top: 14px;
  clip-path: polygon(0 var(--tilt), 22% calc(14px - var(--tilt) * .4), 47% calc(var(--tilt) * .7), 71% calc(14px - var(--tilt)), 100% calc(var(--tilt) * .3), 100% 100%, 0 100%);
}
.stratum:nth-child(1) { --tone: #2b2e33; --tilt: 9px; margin-top: 0; }
.stratum:nth-child(2) { --tone: #24272b; --tilt: 4px; }
.stratum:nth-child(3) { --tone: #1e2024; --tilt: 12px; }
.stratum:nth-child(4) { --tone: #17191c; --tilt: 6px; }
.stratum-row {
  width: 100%; text-align: left;
  display: grid; grid-template-columns: minmax(140px, 1fr) minmax(0, 2.4fr) 44px; align-items: center; gap: 24px;
  padding: clamp(26px, 3.2vw, 44px) var(--gutter);
  max-width: calc(var(--max) + 2 * var(--gutter)); margin-inline: auto;
}
.stratum-name { font-family: var(--display); font-weight: 400; font-size: 14px; letter-spacing: .12em; text-transform: uppercase; color: var(--sheen); }
.stratum-line { font-family: var(--display); font-weight: 200; font-size: clamp(22px, 2.7vw, 40px); line-height: 1.12; transition: transform .6s var(--ease); }
.stratum-row:hover .stratum-line { transform: translateX(10px); }
.stratum-icon { width: 44px; height: 44px; border: 1px solid rgba(234, 234, 230, .3); border-radius: 50%; position: relative; transition: transform .6s var(--ease), border-color .4s; }
.stratum-icon::before, .stratum-icon::after { content: ""; position: absolute; left: 50%; top: 50%; width: 14px; height: 1px; background: var(--bone); transform: translate(-50%, -50%); }
.stratum-icon::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .6s var(--ease); }
.stratum-row[aria-expanded="true"] .stratum-icon { border-color: var(--bone); }
.stratum-row[aria-expanded="true"] .stratum-icon::after { transform: translate(-50%, -50%) rotate(0deg); }
.stratum-body { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .7s var(--ease); }
.stratum.is-open .stratum-body { grid-template-rows: 1fr; }
.stratum-inner {
  overflow: hidden; min-height: 0;
  display: grid; grid-template-columns: minmax(140px, 1fr) minmax(0, 1.4fr) minmax(0, 1fr) 44px; gap: 24px;
  padding-inline: var(--gutter);
  max-width: calc(var(--max) + 2 * var(--gutter)); margin-inline: auto;
  visibility: hidden; transition: visibility 0s .7s;
}
.stratum.is-open .stratum-inner { visibility: visible; transition: visibility 0s; }
.stratum-inner p { grid-column: 2; color: rgba(234, 234, 230, .82); max-width: 54ch; padding-bottom: clamp(30px, 3.6vw, 48px); }
.stratum-inner ul { grid-column: 3; display: flex; flex-direction: column; gap: 10px; padding-bottom: clamp(30px, 3.6vw, 48px); font-size: 15px; color: rgba(234, 234, 230, .7); }
.stratum-inner li { padding-left: 18px; position: relative; }
.stratum-inner li::before { content: ""; position: absolute; left: 0; top: .72em; width: 7px; height: 7px; border: 1px solid var(--sheen); transform: rotate(45deg) scale(.8); }

/* ---------- process ---------- */
.process { padding: clamp(80px, 10vw, 150px) 0; position: relative; }
.process .h-section { margin-bottom: clamp(44px, 6vw, 80px); order: -2; }
.steps-track { position: relative; height: 1px; background: rgba(234, 234, 230, .16); margin-top: -1px; order: -1; }
.steps-track span { position: absolute; inset: 0; background: var(--sheen); transform-origin: left; transform: scaleX(var(--p, 0)); }
.process .wrap { display: flex; flex-direction: column; }
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(24px, 3vw, 48px); padding-top: 34px; }
.step { position: relative; }
.step-num { position: absolute; top: -48px; left: 0; display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--basalt); border: 1px solid rgba(234, 234, 230, .35); font-size: 12px; font-weight: 500; transition: background .5s, color .5s, border-color .5s; }
.step.is-lit .step-num { background: var(--sheen); color: var(--basalt); border-color: var(--sheen); }
.step h3 { font-family: var(--display); font-weight: 300; font-size: clamp(19px, 1.6vw, 23px); margin: 6px 0 12px; }
.step p { font-size: 15.5px; color: rgba(234, 234, 230, .76); max-width: 34ch; }

/* ---------- work (light section) ---------- */
.work { background: var(--tuff); color: var(--ink); padding: clamp(90px, 11vw, 160px) 0 clamp(80px, 9vw, 130px); clip-path: polygon(0 18px, 31% 0, 64% 14px, 100% 2px, 100% 100%, 0 100%); margin-top: -18px; }
.work ::selection { background: var(--ink); color: var(--tuff); }
.work :focus-visible { outline-color: var(--ink); }
.work-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; margin-bottom: clamp(36px, 4.4vw, 60px); }
.work-intro { margin-top: 18px; max-width: 52ch; color: var(--ink-soft); font-weight: 400; }
.rail-controls { display: flex; gap: 10px; flex-shrink: 0; }
.rail-btn { width: 52px; height: 52px; border-radius: 50%; border: 1px solid rgba(22, 23, 26, .3); display: grid; place-items: center; transition: background .4s var(--ease), border-color .4s; }
.rail-btn svg { width: 18px; height: 18px; fill: none; stroke: var(--ink); stroke-width: 1.4; }
.rail-btn:hover { background: var(--ink); border-color: var(--ink); }
.rail-btn:hover svg { stroke: var(--tuff); }
.rail {
  display: flex; gap: clamp(18px, 2vw, 28px);
  overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth;
  padding: 4px max(var(--gutter), calc((100vw - var(--max)) / 2)) 20px;
  scroll-padding-inline: max(var(--gutter), calc((100vw - var(--max)) / 2));
  scrollbar-width: thin; scrollbar-color: rgba(22, 23, 26, .35) transparent;
  cursor: grab;
}
.rail.is-dragging { cursor: grabbing; scroll-snap-type: none; scroll-behavior: auto; }
.rail.is-dragging .sample-shot { pointer-events: none; }
.sample { flex: 0 0 clamp(250px, 24vw, 330px); margin: 0; scroll-snap-align: start; }
.sample-shot { display: block; width: 100%; position: relative; aspect-ratio: 9 / 13; overflow: hidden; border-radius: 3px; background: #c4c5c0; box-shadow: 0 1px 0 rgba(0, 0, 0, .06), 0 24px 50px -24px rgba(22, 23, 26, .45); }
.sample-shot img { width: 100%; height: auto; transition: transform 3.2s cubic-bezier(.45, 0, .2, 1); }
.sample-shot:hover img, .sample-shot:focus-visible img { transform: translateY(calc(-100% + 100cqh)); }
.sample-shot { container-type: size; }
.sample-open { position: absolute; left: 12px; bottom: 12px; padding: 9px 14px; background: rgba(22, 23, 26, .82); color: var(--tuff); font-size: 13px; font-weight: 500; border-radius: 2px; opacity: 0; transform: translateY(8px); transition: opacity .4s var(--ease), transform .4s var(--ease); }
.sample-shot:hover .sample-open, .sample-shot:focus-visible .sample-open { opacity: 1; transform: none; }
.sample figcaption { padding-top: 18px; }
.sample h3 { font-family: var(--display); font-weight: 400; font-size: 16px; letter-spacing: .1em; }
.sample-meta { font-size: 14px; color: var(--ink-soft); font-weight: 500; margin: 4px 0 10px; }
.sample figcaption p:last-child { font-size: 15px; line-height: 1.55; color: var(--ink-soft); font-weight: 400; }
.sample-cta { align-self: flex-start; aspect-ratio: 9 / 13; background: var(--ink); color: var(--bone); border-radius: 3px; padding: 32px 28px; display: flex; flex-direction: column; justify-content: space-between; }
.sample-cta p { font-family: var(--display); font-weight: 200; font-size: clamp(22px, 2vw, 28px); line-height: 1.2; }
.sample-cta .btn { align-self: flex-start; }

/* ---------- fit ---------- */
.fit { padding: clamp(100px, 12vw, 170px) 0 clamp(70px, 8vw, 120px); }
.fit .h-section { margin-bottom: clamp(36px, 5vw, 64px); }
.fit-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(32px, 6vw, 100px); }
.fit-col h3 { font-family: var(--display); font-weight: 400; font-size: 14px; letter-spacing: .12em; text-transform: uppercase; color: var(--sheen); padding-bottom: 18px; border-bottom: 1px solid rgba(234, 234, 230, .2); }
.fit-col li { padding: 20px 0 20px 34px; border-bottom: 1px solid rgba(234, 234, 230, .1); position: relative; font-size: clamp(17px, 1.4vw, 19px); }
.fit-col li::before { content: ""; position: absolute; left: 4px; top: 30px; width: 9px; height: 9px; background: var(--sheen); transform: rotate(45deg); }
.fit-col-no li { color: rgba(234, 234, 230, .66); }
.fit-col-no li::before { background: none; width: 14px; height: 1px; left: 0; top: 33px; transform: none; background-color: rgba(234, 234, 230, .5); }

/* ---------- founder ---------- */
.founder { padding: clamp(70px, 8vw, 120px) 0 clamp(100px, 12vw, 170px); }
.founder-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(36px, 7vw, 120px); align-items: center; }
.founder-photo { position: relative; }
.founder-photo img { width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; object-position: 50% 30%; filter: grayscale(.25) contrast(1.04); clip-path: polygon(0 0, 100% 0, 100% 86%, 93% 100%, 0 100%); }
.founder-photo::after { content: ""; position: absolute; right: -14px; bottom: -14px; width: 46%; height: 38%; border-right: 1px solid rgba(197, 203, 211, .4); border-bottom: 1px solid rgba(197, 203, 211, .4); pointer-events: none; }
.founder-text { display: flex; flex-direction: column; gap: 20px; max-width: 54ch; }
.founder-text .h-section { margin-bottom: 8px; }
.founder-text p { color: rgba(234, 234, 230, .82); }
.founder-text p:first-of-type { color: var(--bone); font-size: clamp(19px, 1.6vw, 22px); line-height: 1.5; }
.founder-links { display: flex; align-items: center; gap: 28px; margin-top: 12px; flex-wrap: wrap; }

/* ---------- faq ---------- */
.faq { padding: clamp(80px, 10vw, 140px) 0; border-top: 1px solid rgba(234, 234, 230, .08); }
.faq-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(32px, 6vw, 100px); align-items: start; }
.faq-list details { border-bottom: 1px solid rgba(234, 234, 230, .14); }
.faq-list details:first-child { border-top: 1px solid rgba(234, 234, 230, .14); }
.faq-list summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 26px 0; font-size: clamp(18px, 1.5vw, 21px); font-weight: 400; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: ""; flex: 0 0 12px; height: 12px; border-right: 1px solid var(--bone); border-bottom: 1px solid var(--bone); transform: rotate(45deg) translate(-3px, -3px); transition: transform .5s var(--ease); }
.faq-list details[open] summary::after { transform: rotate(225deg) translate(-3px, -3px); }
.faq-list details p { padding: 0 0 28px; max-width: 60ch; color: rgba(234, 234, 230, .78); }
.faq-list details::details-content { height: 0; overflow: hidden; transition: height .6s var(--ease), content-visibility .6s allow-discrete; }
.faq-list details[open]::details-content { height: auto; }

/* ---------- book ---------- */
.book { position: relative; padding: clamp(100px, 12vw, 170px) 0; overflow: hidden; }
.book-bg { position: absolute; inset: 0; background: url("assets/hero-shard.jpg") 70% 50% / cover; opacity: .16; filter: grayscale(.4); mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent); -webkit-mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent); }
.book-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: clamp(36px, 6vw, 96px); align-items: start; }
.book-text { display: flex; flex-direction: column; gap: 22px; position: sticky; top: 120px; }
.book-text > p { color: rgba(234, 234, 230, .82); max-width: 44ch; }
.book-list { display: flex; flex-direction: column; gap: 12px; margin-top: 6px; }
.book-list li { padding-left: 28px; position: relative; }
.book-list li::before { content: ""; position: absolute; left: 2px; top: .62em; width: 9px; height: 9px; background: var(--sheen); transform: rotate(45deg); }
.book-alt { font-size: 15px; color: var(--ash) !important; }
.book-alt a { color: var(--bone); border-bottom: 1px solid rgba(234, 234, 230, .4); }
.book-embed { background: var(--glass); border: 1px solid var(--rim); border-radius: 4px; overflow: hidden; min-height: 700px; }
.book-embed iframe { width: 100%; height: 760px; border: 0; }

/* ---------- footer ---------- */
.footer { padding: clamp(60px, 7vw, 100px) 0 36px; border-top: 1px solid rgba(234, 234, 230, .08); }
.footer-top { display: flex; flex-direction: column; gap: 18px; margin-bottom: clamp(40px, 5vw, 72px); }
.footer-word { font-family: var(--display); font-size: clamp(54px, 15vw, 230px); line-height: .9; display: flex; letter-spacing: .005em; }
.footer-word span:first-child { font-weight: 200; color: transparent; -webkit-text-stroke: 1px rgba(234, 234, 230, .35); }
.footer-word span:last-child { font-weight: 300; transform: translateY(.075em); }
.footer-tag { font-family: var(--display); font-weight: 200; font-size: clamp(16px, 1.4vw, 20px); color: var(--sheen); margin-top: .2em; }
.footer-bottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px 40px; font-size: 14px; color: rgba(234, 234, 230, .66); }
.footer-bottom nav, .footer-social { display: flex; gap: 26px; flex-wrap: wrap; }
.footer-bottom a { padding: 6px 0; transition: color .3s; }
.footer-bottom a:hover { color: var(--bone); }
.footer-legal { width: 100%; padding-top: 22px; border-top: 1px solid rgba(234, 234, 230, .08); font-size: 13px; color: var(--ash); }

/* ---------- lightbox ---------- */
.lightbox { padding: 0; border: 0; background: transparent; width: min(640px, 100vw); height: 100dvh; max-height: 100dvh; max-width: 100vw; margin: 0 auto; overflow: visible; }
.lightbox::backdrop { background: rgba(10, 11, 13, .86); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.lightbox[open] { animation: lb 0.6s var(--ease); }
.lightbox-scroll { height: 100%; overflow-y: auto; padding: 72px 16px 40px; overscroll-behavior: contain; }
.lightbox-scroll img { width: 100%; height: auto; border-radius: 3px; }
.lightbox-close { position: fixed; top: 16px; right: 16px; width: 48px; height: 48px; border-radius: 50%; background: var(--bone); display: grid; place-items: center; z-index: 2; }
.lightbox-close svg { width: 18px; height: 18px; stroke: var(--basalt); stroke-width: 1.5; fill: none; }
@keyframes lb { from { opacity: 0; transform: translateY(24px) scale(.98); } to { opacity: 1; transform: none; } }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .hero-facts { display: none; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 70px; }
  .stratum-inner { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .stratum-inner p { grid-column: 1; }
  .stratum-inner ul { grid-column: 2; }
}

@media (max-width: 820px) {
  body { font-size: 16px; }
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; inset: 0; z-index: -1;
    flex-direction: column; justify-content: center; align-items: flex-start; gap: 6px;
    padding: 100px var(--gutter) 40px;
    background: rgba(18, 19, 22, .97);
    font-family: var(--display); font-size: 26px; letter-spacing: 0; text-transform: none; font-weight: 300;
    opacity: 0; visibility: hidden; transition: opacity .5s var(--ease), visibility 0s .5s;
  }
  .nav-links a:not(.nav-cta) { padding: 10px 0; }
  .nav-links .nav-cta { margin-top: 24px; font-family: var(--text); font-size: 15px; letter-spacing: .12em; text-transform: uppercase; }
  .nav.is-open .nav-links { opacity: 1; visibility: visible; transition: opacity .5s var(--ease); }
  .nav.is-open { background: transparent; backdrop-filter: none; -webkit-backdrop-filter: none; box-shadow: none; }

  .hero { min-height: 680px; }
  .hero-frame { inset: 0; border-radius: 0; }
  .hero-video { object-position: 80% 50%; }
  .hero-glass {
    top: auto; width: 100%; height: 46%;
    clip-path: polygon(0 12px, 18% 4px, 39% 14px, 63% 0, 82% 10px, 100% 3px, 100% 100%, 0 100%);
  }
  .hero-word { top: 15%; left: var(--gutter); flex-direction: column; font-size: clamp(60px, 21vw, 120px); line-height: .92; }
  .word-a { width: auto; text-align: left; padding: 0; color: rgba(255, 255, 255, .26); text-shadow: 0 1px 0 rgba(255, 255, 255, .4), 0 10px 40px rgba(0, 0, 0, .45); }
  .word-b { padding: 0; transform: translateX(.09em); animation-name: riseM; }
  .hero-tag { left: var(--gutter); right: var(--gutter); top: calc(15% + clamp(60px, 21vw, 120px) * 1.98); font-size: 12px; }
  .hero-panel { left: var(--gutter); right: var(--gutter); width: auto; max-width: none; bottom: 64px; gap: 16px; }
  .slide p { font-size: 15px; }
  .hero-scroll { display: none; }
  @keyframes riseM { from { opacity: 0; transform: translate(.09em, 32px); filter: blur(10px); } to { opacity: 1; transform: translateX(.09em); filter: blur(0); } }

  .statement-body { grid-column: 1; }
  .statement-grid, .system-head, .faq-grid, .book-grid, .founder-grid, .fit-grid { grid-template-columns: minmax(0, 1fr); }
  .statement-lead .ln { display: inline; overflow: visible; }
  .statement-lead .ln > span { display: inline; }
  .js .statement-lead:not(.is-in) .ln > span { transform: none; opacity: 1; }
  .js .statement-lead { transition: opacity 1.2s var(--ease), transform 1.2s var(--ease); }
  .js .statement-lead:not(.is-in) { opacity: 0; transform: translateY(24px); }

  .stratum-row { grid-template-columns: minmax(0, 1fr) 44px; row-gap: 10px; }
  .stratum-name { grid-column: 1; grid-row: 1; }
  .stratum-line { grid-column: 1; grid-row: 2; }
  .stratum-icon { grid-column: 2; grid-row: 1 / span 2; }
  .stratum-inner { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .stratum-inner p, .stratum-inner ul { grid-column: 1; }
  .stratum-inner p { padding-bottom: 20px; }

  .steps-track { display: none; }
  .steps { grid-template-columns: minmax(0, 1fr); gap: 36px; padding-top: 0; }
  .step { padding-left: 50px; }
  .step-num { top: 4px; }
  .step h3 { margin-top: 0; }

  .work-head { flex-direction: column; align-items: flex-start; }
  .rail-controls { display: none; }
  .sample { flex-basis: 74vw; }
  .sample-open { opacity: 1; transform: none; }

  .founder-photo { max-width: 460px; }
  .book-text { position: static; }
  .book-embed iframe { height: 720px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-height: 760px) and (min-width: 821px) {
  .slide p { font-size: 14px; }
  .hero-panel { gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .js .statement-lead:not(.is-in) .ln > span, .js .statement-lead:not(.is-in) { transform: none; opacity: 1; }
  .sample-shot:hover img { transform: none; }
}