:root {
  --ink: #0a0a0a;
  --paper: #f7f7f3;
  --line: #d8d8d1;
  --muted: #666760;
  --soft: #ecece6;
  --accent: #163f2d;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

.home-header {
  min-height: 92px;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto minmax(260px, 1fr);
  align-items: center;
  gap: 24px;
  padding: 14px clamp(20px, 4vw, 68px);
  border-bottom: 1px solid var(--line);
  background: rgba(247,247,243,.94);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
}
.home-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}
.home-brand img {
  width: 62px;
  height: 62px;
  object-fit: contain;
}
.home-brand div { display: grid; gap: 1px; }
.home-brand strong {
  font-size: clamp(1.55rem, 2.1vw, 2.2rem);
  font-weight: 600;
  letter-spacing: -.055em;
}
.home-brand span {
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.home-nav {
  display: flex;
  gap: 28px;
  align-items: center;
  font-size: .87rem;
}
.home-nav a {
  padding: 13px 0;
  border-bottom: 2px solid transparent;
}
.home-nav a:hover,
.home-nav a.active {
  border-color: var(--ink);
}
.header-cta {
  justify-self: end;
  padding: 14px 18px;
  background: var(--ink);
  color: #fff;
  border-radius: 4px;
  font-weight: 700;
  font-size: .84rem;
}

main {
  width: min(1600px, calc(100% - 40px));
  margin: 0 auto;
}
.hero {
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(420px, 1.05fr);
  border-bottom: 1px solid var(--line);
}
.hero-copy {
  padding: clamp(64px, 8vw, 116px) clamp(24px, 5vw, 80px) 54px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}
.hero-copy::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  border: 1px solid #d3d3cc;
  border-radius: 50%;
  left: -170px;
  top: 60px;
}
.eyebrow-home,
.section-header span,
.why-title > span {
  font-size: .68rem;
  font-weight: 900;
  letter-spacing: .15em;
}
.hero h1 {
  margin: 19px 0 24px;
  font-size: clamp(3rem, 5.2vw, 6.3rem);
  line-height: .93;
  letter-spacing: -.075em;
  font-weight: 600;
  max-width: 980px;
}
.hero h1 span {
  color: var(--accent);
}
.hero-copy > p {
  max-width: 760px;
  color: #40413d;
  font-size: clamp(1rem, 1.3vw, 1.24rem);
  line-height: 1.55;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.button {
  min-height: 52px;
  padding: 0 21px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  font-weight: 800;
  font-size: .9rem;
}
.button.primary { background: var(--ink); color: #fff; }
.button.secondary { background: transparent; }
.hero-values {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  margin-top: 40px;
  font-size: .78rem;
}
.hero-values span::before {
  content: "●";
  font-size: .55rem;
  margin-right: 8px;
}

.hero-art {
  min-height: 650px;
  position: relative;
  overflow: hidden;
  background: #fff;
  border-left: 1px solid var(--line);
}
.hero-art > img {
  width: 112%;
  max-width: none;
  position: absolute;
  right: -32%;
  top: 50%;
  transform: translateY(-50%) rotate(7deg);
}
.hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(247,247,243,.04), rgba(247,247,243,0)),
    repeating-linear-gradient(90deg, transparent 0 84px, rgba(0,0,0,.035) 84px 85px);
  pointer-events: none;
}
.hero-art-label {
  position: absolute;
  z-index: 2;
  left: 28px;
  bottom: 26px;
  display: grid;
  gap: 5px;
  font-size: .66rem;
  font-weight: 900;
  letter-spacing: .11em;
}

.feature-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
}
.feature-strip article {
  min-height: 138px;
  padding: 25px 24px;
  display: grid;
  grid-template-columns: 45px 1fr;
  gap: 15px;
  border-right: 1px solid var(--line);
}
.feature-strip article:last-child { border-right: 0; }
.feature-number {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: #888;
  font-size: .72rem;
}
.feature-strip strong { font-size: .95rem; }
.feature-strip p {
  color: var(--muted);
  margin: 7px 0 0;
  font-size: .78rem;
  line-height: 1.45;
}

.activities-section {
  padding: 78px 0 88px;
  border-bottom: 1px solid var(--line);
}
.section-header {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 50px;
  align-items: end;
  margin-bottom: 34px;
}
.section-header h2,
.why-title h2 {
  margin: 9px 0 0;
  font-size: clamp(2rem, 3.6vw, 4rem);
  line-height: 1;
  letter-spacing: -.055em;
  max-width: 900px;
}
.section-header > p {
  color: var(--muted);
  line-height: 1.55;
  max-width: 620px;
  justify-self: end;
}
.activity-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
}
.activity-card {
  min-height: 370px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
  position: relative;
  transition: background .18s ease, color .18s ease;
}
.activity-card:last-child { border-right: 0; }
.activity-card:hover { background: #fff; }
.activity-card.card-black {
  background: var(--ink);
  color: #fff;
}
.activity-card.card-black:hover { background: #181818; }
.activity-index {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .72rem;
  opacity: .62;
}
.activity-symbol {
  margin: 42px 0 auto;
  font-size: 4.6rem;
  line-height: 1;
}
.activity-card h3 {
  margin: 0 0 10px;
  font-size: 1.45rem;
  letter-spacing: -.035em;
}
.activity-card p {
  margin: 0;
  font-size: .82rem;
  line-height: 1.5;
  opacity: .7;
}
.card-arrow {
  position: absolute;
  right: 20px;
  top: 20px;
  font-size: 1.2rem;
}

.why-section {
  padding: 88px 0 100px;
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 80px;
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink);
}
.why-grid article {
  padding: 22px 18px 0 0;
  border-right: 1px solid var(--line);
}
.why-grid article + article { padding-left: 18px; }
.why-grid article:last-child { border-right: 0; }
.why-grid strong { font-size: 1.2rem; }
.why-grid p {
  color: var(--muted);
  line-height: 1.55;
  font-size: .82rem;
}

.home-footer {
  min-height: 140px;
  padding: 28px clamp(20px, 4vw, 68px);
  display: grid;
  grid-template-columns: 1.2fr .8fr .8fr 1fr;
  gap: 30px;
  align-items: center;
  background: var(--ink);
  color: #fff;
}
.home-footer > div:not(.footer-logo) {
  display: grid;
  gap: 5px;
}
.home-footer span { color: #a7a7a2; font-size: .7rem; text-transform: uppercase; letter-spacing: .09em; }
.home-footer a { font-size: .82rem; }
.footer-logo { display: flex; gap: 12px; align-items: center; font-size: 1.35rem; }
.footer-logo img { filter: invert(1); }
.footer-credit { color: #aaa; font-size: .72rem; }

@media (max-width: 1100px) {
  .home-header { grid-template-columns: 1fr auto; }
  .home-nav { display: none; }
  .hero { grid-template-columns: 1fr; }
  .hero-art { min-height: 430px; border-left: 0; border-top: 1px solid var(--line); }
  .feature-strip { grid-template-columns: repeat(2, 1fr); }
  .activity-grid { grid-template-columns: repeat(2, 1fr); }
  .activity-card:nth-child(2) { border-right: 0; }
  .activity-card:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .why-section { grid-template-columns: 1fr; gap: 42px; }
}
@media (max-width: 680px) {
  main { width: min(100% - 24px, 1600px); }
  .home-header { min-height: 74px; padding: 10px 14px; }
  .home-brand img { width: 46px; height: 46px; }
  .home-brand strong { font-size: 1.45rem; }
  .home-brand span { display: none; }
  .header-cta { padding: 11px 12px; font-size: .72rem; }
  .hero { min-height: auto; }
  .hero-copy { padding: 62px 8px 44px; }
  .hero h1 { font-size: clamp(3rem, 15vw, 4.7rem); }
  .hero-art { min-height: 330px; }
  .hero-art > img { width: 145%; right: -55%; }
  .feature-strip { grid-template-columns: 1fr; }
  .feature-strip article { border-right: 0; border-bottom: 1px solid var(--line); }
  .section-header { grid-template-columns: 1fr; gap: 18px; }
  .activity-grid { grid-template-columns: 1fr; }
  .activity-card {
    min-height: 290px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .activity-card:last-child { border-bottom: 0; }
  .why-grid { grid-template-columns: 1fr; }
  .why-grid article,
  .why-grid article + article { padding: 18px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .home-footer { grid-template-columns: 1fr; }
}