:root {
  color-scheme: light;
  --paper: #f5fbfb;
  --paper-soft: #fbfefe;
  --ink: #1a1a18;
  --muted: #647174;
  --blue: #2e6fd8;
  --line: rgba(20, 39, 44, 0.12);
  --line-strong: rgba(20, 39, 44, 0.24);
  --white: rgba(255, 255, 255, 0.78);
  --shadow: 0 18px 55px rgba(20, 39, 44, 0.08);
  --page-pad: clamp(20px, 4vw, 56px);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.45;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  font-synthesis: none;
  text-rendering: geometricPrecision;
}

html.intro-enabled,
html.intro-enabled body {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.intro-overlay {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: none;
  place-items: center;
  padding:
    max(32px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right))
    max(32px, env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
  background: #fff;
  opacity: 1;
  transition:
    opacity 1100ms cubic-bezier(0.22, 1, 0.36, 1),
    visibility 1100ms cubic-bezier(0.22, 1, 0.36, 1);
}

html.intro-enabled .intro-overlay {
  display: grid;
}

html.intro-exiting .intro-overlay {
  opacity: 0;
}

.intro-video {
  display: block;
  width: min(72vw, 560px);
  max-height: 52svh;
  object-fit: contain;
  opacity: 0;
  transition: opacity 520ms ease;
}

html.intro-ready .intro-video {
  opacity: 1;
}

html.intro-whiteout .intro-video {
  opacity: 0;
}

.site-header,
main,
.site-footer {
  transition:
    opacity 1200ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 1200ms cubic-bezier(0.22, 1, 0.36, 1);
}

html.intro-enabled .site-header,
html.intro-enabled main,
html.intro-enabled .site-footer {
  opacity: 0;
  transform: translateY(10px);
}

html.intro-enabled.intro-page-visible .site-header,
html.intro-enabled.intro-page-visible main,
html.intro-enabled.intro-page-visible .site-footer {
  opacity: 1;
  transform: translateY(0);
}

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding:
    calc(16px + env(safe-area-inset-top)) max(var(--page-pad), env(safe-area-inset-right))
    16px max(var(--page-pad), env(safe-area-inset-left));
  background: rgba(245, 251, 251, 0.8);
  border-bottom: 1px solid rgba(20, 39, 44, 0.07);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  width: 112px;
  min-height: 32px;
  align-items: center;
  -webkit-tap-highlight-color: transparent;
  text-decoration: none;
}

.brand img {
  display: block;
  width: 100%;
  height: auto;
}

.nav {
  display: flex;
  gap: clamp(18px, 3vw, 36px);
  align-items: center;
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
}

.nav a {
  text-decoration: none;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--ink);
}

.hero {
  display: grid;
  min-height: 86svh;
  align-items: end;
  padding:
    calc(126px + env(safe-area-inset-top)) max(var(--page-pad), env(safe-area-inset-right))
    70px max(var(--page-pad), env(safe-area-inset-left));
  background:
    linear-gradient(rgba(245, 251, 251, 0.18), rgba(245, 251, 251, 0.36)),
    url("assets/sr3h-quiet-material.jpg") center / cover no-repeat;
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  width: min(760px, 100%);
}

h1,
h2,
h3,
p {
  margin-block-start: 0;
}

h1 {
  max-width: 760px;
  margin-block-end: 28px;
  font-size: clamp(48px, 8vw, 104px);
  font-weight: 560;
  line-height: 0.98;
}

h2 {
  margin-block-end: 0;
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 540;
  line-height: 1.08;
}

h3 {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 560;
}

.intro {
  max-width: 520px;
  margin-block-end: 34px;
  color: #354044;
  font-size: clamp(20px, 2.1vw, 28px);
  line-height: 1.25;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  min-width: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 14px;
  -webkit-tap-highlight-color: transparent;
  text-decoration: none;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease;
}

.button.primary {
  background: var(--ink);
  color: var(--paper-soft);
}

.button.secondary {
  background: var(--white);
}

.button:hover,
.button:focus-visible {
  border-color: var(--ink);
}

.section {
  padding:
    clamp(76px, 10vw, 132px) max(var(--page-pad), env(safe-area-inset-right))
    clamp(76px, 10vw, 132px) max(var(--page-pad), env(safe-area-inset-left));
  border-bottom: 1px solid var(--line);
}

.section.compact {
  padding-block: clamp(56px, 8vw, 96px);
}

.section.muted {
  background: #edf7f7;
}

.work-section {
  position: relative;
  overflow: hidden;
}

.work-section::before {
  position: absolute;
  right: max(-780px, -42vw);
  bottom: -860px;
  width: min(168vw, 2200px);
  aspect-ratio: 1;
  background: url("assets/conchup-rainbow-watermark.png") center / contain no-repeat;
  content: "";
  filter: grayscale(1) contrast(0.72);
  opacity: 0.055;
  pointer-events: none;
}

.section-inner {
  position: relative;
  z-index: 1;
  width: min(1120px, 100%);
  margin: 0 auto;
}

.split {
  display: grid;
  grid-template-columns: minmax(180px, 0.62fr) minmax(0, 1fr);
  gap: clamp(34px, 8vw, 120px);
  align-items: start;
}

.split p {
  max-width: 650px;
  margin: 0;
  color: #383733;
  font-size: clamp(21px, 2.6vw, 38px);
  line-height: 1.18;
}

.work-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 44px;
  background: var(--line);
  border: 1px solid var(--line);
}

.work-item {
  position: relative;
  overflow: hidden;
  min-height: 260px;
  padding: 24px;
  background: var(--paper-soft);
}

.work-item h3,
.work-item p {
  position: relative;
  z-index: 1;
}

.work-item p {
  max-width: 280px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.work-item-proper-job::after {
  position: absolute;
  inset: -58px;
  background: url("assets/proper-job-watermark.png") center / contain no-repeat;
  content: "";
  filter: blur(1.2px);
  opacity: 0.13;
  pointer-events: none;
}

.work-item-brane::after {
  position: absolute;
  right: -120px;
  bottom: -112px;
  width: min(142%, 460px);
  aspect-ratio: 1;
  background: url("assets/brane-field-watermark.png") center / contain no-repeat;
  content: "";
  opacity: 0.18;
  pointer-events: none;
}

.work-item-conchup::after {
  position: absolute;
  right: -210px;
  bottom: -206px;
  width: min(218%, 700px);
  aspect-ratio: 1;
  background: url("assets/conchup-rainbow-watermark.png") center / contain no-repeat;
  content: "";
  opacity: 0.16;
  pointer-events: none;
}

.work-item-pipeline::after {
  position: absolute;
  right: -104px;
  bottom: -112px;
  width: min(136%, 430px);
  aspect-ratio: 1;
  background: url("assets/pipeline-field-watermark.png") center / contain no-repeat;
  content: "";
  opacity: 0.16;
  pointer-events: none;
}

.principles {
  display: grid;
  grid-template-columns: minmax(180px, 0.62fr) minmax(0, 1fr);
  gap: clamp(34px, 8vw, 120px);
}

.principles ul {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: #2f2e2a;
  font-size: clamp(22px, 3vw, 44px);
  line-height: 1.07;
}

.contact a {
  white-space: nowrap;
}

.site-footer {
  padding:
    28px max(var(--page-pad), env(safe-area-inset-right))
    calc(42px + env(safe-area-inset-bottom)) max(var(--page-pad), env(safe-area-inset-left));
  color: var(--muted);
  font-size: 12px;
}

.site-footer p {
  width: min(1120px, 100%);
  margin: 0 auto;
}

@media (max-width: 900px) {
  .work-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .intro-video {
    width: min(78vw, 320px);
  }

  .site-header {
    padding-top: calc(14px + env(safe-area-inset-top));
    padding-bottom: 14px;
  }

  .brand {
    width: 98px;
  }

  .hero {
    min-height: 82svh;
    padding-top: calc(104px + env(safe-area-inset-top));
    padding-bottom: 48px;
    background-position: 55% center;
  }

  .split,
  .principles {
    grid-template-columns: 1fr;
  }

  .work-list {
    grid-template-columns: 1fr;
  }

  .work-item {
    min-height: 178px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .intro-overlay {
    display: none !important;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}