:root {
  --ink: #11120f;
  --muted: #6f756e;
  --paper: #f4f0e8;
  --paper-soft: #fbfaf6;
  --line: rgba(17, 18, 15, 0.12);
  --line-strong: rgba(17, 18, 15, 0.24);
  --accent: #b56b3f;
  --moss: #5b6a58;
  --deep: #20241f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(181, 107, 63, 0.14), transparent 28rem),
    radial-gradient(circle at 88% 4%, rgba(91, 106, 88, 0.16), transparent 24rem),
    var(--paper);
  color: var(--ink);
  font-family: "Helvetica Neue", "Inter", Arial, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  align-items: center;
  backdrop-filter: blur(10px);
  display: flex;
  justify-content: space-between;
  left: 50%;
  max-width: 1180px;
  padding: 22px 28px;
  position: fixed;
  top: 16px;
  transform: translateX(-50%);
  transition: background 240ms ease, border-color 240ms ease, box-shadow 240ms ease;
  width: calc(100% - 32px);
  z-index: 10;
}

.site-header.is-scrolled {
  background: rgba(244, 240, 232, 0.78);
  border: 1px solid var(--line);
  box-shadow: 0 18px 60px rgba(32, 36, 31, 0.08);
}

.brand {
  display: grid;
  gap: 2px;
  letter-spacing: 0.02em;
}

.brand span {
  font-size: clamp(1.45rem, 2vw, 2rem);
  font-weight: 700;
  line-height: 0.95;
}

.brand small {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

nav {
  display: flex;
  gap: 24px;
  color: var(--deep);
  font-size: 0.9rem;
}

nav a {
  opacity: 0.72;
  transition: opacity 180ms ease;
}

nav a:hover,
nav a.is-active {
  opacity: 1;
}

.section-shell {
  margin: 0 auto;
  max-width: 1180px;
  padding-left: 28px;
  padding-right: 28px;
}

.hero {
  align-items: center;
  display: grid;
  gap: clamp(36px, 6vw, 80px);
  grid-template-columns: minmax(0, 0.92fr) minmax(340px, 1.08fr);
  min-height: 100vh;
  padding-bottom: 80px;
  padding-top: 132px;
}

.eyebrow,
.section-kicker {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  margin: 0 0 18px;
  text-transform: uppercase;
}

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

h1 {
  font-size: clamp(3.2rem, 7vw, 7.4rem);
  letter-spacing: -0.075em;
  line-height: 0.9;
  margin-bottom: 28px;
  max-width: 920px;
}

h2 {
  font-size: clamp(2rem, 4.8vw, 4.8rem);
  letter-spacing: -0.055em;
  line-height: 0.96;
  margin-bottom: 22px;
}

h3 {
  font-size: 1.15rem;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.hero-text,
.intro p,
.project-card p {
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  line-height: 1.7;
}

.hero-text {
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button,
.contact-link {
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  display: inline-flex;
  font-weight: 700;
  justify-content: center;
  padding: 14px 20px;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.button:hover,
.contact-link:hover {
  transform: translateY(-2px);
}

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

.button.ghost {
  background: rgba(255, 255, 255, 0.22);
}

.hero-visual {
  aspect-ratio: 1;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.62), rgba(255, 255, 255, 0.08)),
    repeating-linear-gradient(90deg, transparent 0 38px, rgba(17, 18, 15, 0.05) 39px 40px),
    repeating-linear-gradient(0deg, transparent 0 38px, rgba(17, 18, 15, 0.05) 39px 40px);
  border: 1px solid var(--line);
  border-radius: 42% 58% 52% 48% / 48% 38% 62% 52%;
  box-shadow: inset 0 0 80px rgba(255, 255, 255, 0.52), 0 34px 90px rgba(32, 36, 31, 0.16);
  overflow: hidden;
  position: relative;
}

.hero-visual::before,
.hero-visual::after,
.surface,
.arc {
  content: "";
  position: absolute;
}

.hero-visual::before {
  background:
    linear-gradient(26deg, transparent 48.8%, rgba(32, 36, 31, 0.42) 49%, rgba(32, 36, 31, 0.42) 49.45%, transparent 49.65%),
    linear-gradient(151deg, transparent 48.8%, rgba(32, 36, 31, 0.24) 49%, rgba(32, 36, 31, 0.24) 49.35%, transparent 49.55%);
  inset: 10%;
  transform: rotate(-7deg);
}

.hero-visual::after {
  border: 1px solid rgba(181, 107, 63, 0.52);
  border-radius: 50%;
  inset: 18%;
  transform: rotate(18deg) skew(-12deg);
}

.surface {
  border: 1px solid rgba(32, 36, 31, 0.16);
  border-radius: 50%;
}

.surface-a {
  inset: 22% 8% 24% 16%;
  transform: rotate(-21deg);
}

.surface-b {
  inset: 8% 26% 14% 8%;
  transform: rotate(32deg);
}

.arc {
  border: 2px solid rgba(91, 106, 88, 0.54);
  border-bottom-color: transparent;
  border-left-color: transparent;
  border-radius: 50%;
}

.arc-one {
  height: 74%;
  right: 10%;
  top: 12%;
  transform: rotate(14deg);
  width: 74%;
}

.arc-two {
  bottom: 10%;
  height: 58%;
  left: 10%;
  transform: rotate(198deg);
  width: 58%;
}

.node {
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 10px rgba(181, 107, 63, 0.12);
  height: 10px;
  position: absolute;
  width: 10px;
}

.node-one {
  left: 24%;
  top: 34%;
}

.node-two {
  right: 28%;
  top: 22%;
}

.node-three {
  bottom: 28%;
  right: 18%;
}

.hero-visual p {
  bottom: 30px;
  color: var(--deep);
  font-size: 0.78rem;
  font-weight: 700;
  left: 34px;
  letter-spacing: 0.14em;
  position: absolute;
  text-transform: uppercase;
}

.intro,
.areas,
.projects,
.contact {
  padding-bottom: clamp(84px, 11vw, 150px);
}

.intro {
  max-width: 930px;
  padding-top: 20px;
}

.section-heading {
  align-items: end;
  display: grid;
  gap: 28px;
  grid-template-columns: 0.85fr 1.15fr;
  margin-bottom: 34px;
}

.area-grid,
.project-grid {
  display: grid;
  gap: 16px;
}

.area-grid {
  grid-template-columns: repeat(4, 1fr);
}

.area-card,
.project-card,
.contact {
  background: rgba(251, 250, 246, 0.58);
  border: 1px solid var(--line);
  box-shadow: 0 24px 70px rgba(32, 36, 31, 0.06);
}

.area-card {
  min-height: 170px;
  padding: 22px;
  position: relative;
}

.area-card span {
  background: linear-gradient(90deg, var(--accent), transparent);
  display: block;
  height: 1px;
  margin-bottom: 48px;
  width: 100%;
}

.project-grid {
  grid-template-columns: repeat(3, 1fr);
}

.project-card {
  min-height: 320px;
  padding: 28px;
}

.project-card span {
  color: var(--accent);
  display: block;
  font-weight: 800;
  margin-bottom: 120px;
}

.contact {
  align-items: center;
  border-radius: 34px;
  display: flex;
  gap: 32px;
  justify-content: space-between;
  margin-bottom: 28px;
  padding-bottom: 46px;
  padding-top: 46px;
}

.contact h2 {
  font-size: clamp(2rem, 4vw, 4rem);
  max-width: 850px;
}

.contact-link {
  background: var(--accent);
  border-color: transparent;
  color: white;
  white-space: nowrap;
}

.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .button,
  .contact-link,
  .site-header,
  nav a {
    transition: none;
  }
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    gap: 18px;
    padding: 18px;
  }

  nav {
    gap: 14px;
  }

  .hero,
  .section-heading,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    min-height: 420px;
  }

  .area-grid,
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact {
    align-items: flex-start;
    display: grid;
  }
}

@media (max-width: 620px) {
  .section-shell {
    padding-left: 18px;
    padding-right: 18px;
  }

  .site-header {
    border-radius: 22px;
    flex-direction: column;
    width: calc(100% - 20px);
  }

  nav {
    font-size: 0.84rem;
    justify-content: space-between;
    width: 100%;
  }

  h1 {
    font-size: clamp(3.1rem, 15vw, 5rem);
  }

  .hero {
    padding-top: 174px;
  }

  .hero-visual {
    border-radius: 34px;
    min-height: 340px;
  }

  .area-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .project-card {
    min-height: 260px;
  }

  .project-card span {
    margin-bottom: 80px;
  }

  .contact {
    border-radius: 26px;
    padding: 30px 22px;
  }

  .contact-link {
    width: 100%;
  }
}