@font-face {
  font-family: "JetBrains Mono";
  src:
    url("assets/fonts/JetBrainsMono-SemiBold.woff2?v=3") format("woff2"),
    url("assets/fonts/JetBrainsMono-SemiBold.ttf?v=3") format("truetype");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

:root {
  --graphite: #22262b;
  --deep-graphite: #171a1f;
  --stone: #f4f1ea;
  --copper: #d98a57;
  --deep-copper: #a4512d;
  --slate: #61707e;
  --body: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --page: min(1180px, calc(100vw - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--deep-graphite);
  color: var(--stone);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}
em {
  font-style: normal;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  background: var(--stone);
  color: var(--deep-graphite);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 50%;
  display: flex;
  width: var(--page);
  align-items: center;
  justify-content: space-between;
  padding: 28px 0;
  transform: translateX(-50%);
  border-bottom: 1px solid rgb(244 241 234 / 16%);
}

.brand img {
  display: block;
  width: 500px;
  height: auto;
}

.nav-menu summary {
  display: none;
}
.nav-menu nav {
  display: flex;
  gap: clamp(18px, 2.3vw, 38px);
}

.nav-menu a {
  color: rgb(244 241 234 / 70%);
  font-family: var(--mono);
  font-size: 0.73rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

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

:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 5px;
}

.hero {
  position: relative;
  display: grid;
  min-height: 780px;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
  grid-template-rows: 1fr auto;
  gap: 64px;
  width: var(--page);
  margin: 0 auto;
  padding: 190px 0 42px;
  overflow: clip;
}

.hero-grid {
  position: absolute;
  inset: 105px 0 0;
  opacity: 0.42;
  background-image:
    linear-gradient(rgb(244 241 234 / 5%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(244 241 234 / 5%) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom right, black, transparent 75%);
}

.hero-copy,
.hero-mark,
.hero-baseline {
  position: relative;
  z-index: 1;
}

.hero-copy {
  align-self: center;
  max-width: 790px;
}

.eyebrow,
.mark-index,
.mark-note,
.hero-baseline {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.section {
  width: var(--page);
  margin: 0 auto;
  padding: clamp(50px, 10vw, 100px) 0;
}

.section-kicker {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 54px;
  color: var(--slate);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.section-kicker::after {
  content: "";
  width: 56px;
  height: 1px;
  margin-left: 8px;
  background: currentColor;
  opacity: 0.45;
}

.section-kicker span {
  color: var(--deep-copper);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
  gap: clamp(40px, 8vw, 120px);
  align-items: end;
}

h2 {
  margin: 0;
  color: var(--deep-graphite);
  font-family: var(--mono);
  font-size: clamp(2.65rem, 5.2vw, 5.35rem);
  font-weight: 600;
  letter-spacing: -0.065em;
  line-height: 1;
}

h2 em {
  color: var(--deep-copper);
}

.section-heading > p,
.approach-lead > p {
  margin: 0;
  color: rgb(34 38 43 / 64%);
  font-size: 1.05rem;
  line-height: 1.65;
}

.services {
  color: var(--graphite);
}

.services::before,
.about::before {
  content: "";
  position: absolute;
  z-index: -1;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background: var(--stone);
  box-shadow:
    inset 0 5px var(--copper),
    inset 0 -5px var(--copper);
}

.services::before {
  top: 0;
  height: 100%;
}

.services,
.about {
  position: relative;
  z-index: 0;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 100px 0 0;
  padding: 0;
  border-top: 1px solid rgb(34 38 43 / 22%);
  list-style: none;
}

.service-list li {
  min-height: 400px;
  padding: 28px clamp(24px, 3.6vw, 54px) 20px 0;
  border-right: 1px solid rgb(34 38 43 / 18%);
}

.service-list li + li {
  padding-left: clamp(24px, 3.6vw, 54px);
}
.service-list li:last-child {
  padding-right: 0;
  border-right: 0;
}

.item-number {
  margin: 0 0 62px;
  color: var(--deep-copper);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.service-list h3,
.principle-list h3,
.founder h3 {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(1.3rem, 1.8vw, 1.65rem);
  letter-spacing: -0.03em;
  line-height: 1.25;
}

.service-list p,
.principle-list p,
.about p {
  color: rgb(34 38 43 / 68%);
  font-size: 0.99rem;
  line-height: 1.72;
}

.service-list p {
  margin: 25px 0 0;
}

.approach {
  color: var(--stone);
}

.approach .section-kicker {
  color: rgb(244 241 234 / 45%);
}
.approach .section-kicker span {
  color: var(--copper);
}

.approach-line {
  position: absolute;
  z-index: -1;
  left: 50%;
  width: 100vw;
  height: 100%;
  margin-top: calc(clamp(50px, 10vw, 100px) * -1);
  transform: translateX(-50%);
  background:
    linear-gradient(116deg, transparent 0 48%, rgb(244 241 234 / 5%) 48.1%
    48.2%, transparent 48.3%),
    linear-gradient(64deg, transparent 0 53%, rgb(217 138 87 / 9%) 53.1% 53.2%,
    transparent 53.3%);
}

.approach {
  position: relative;
  isolation: isolate;
}

.approach-lead {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.45fr);
  gap: clamp(40px, 9vw, 150px);
  align-items: end;
}

.approach h2 {
  color: var(--stone);
}
.approach h2 em {
  color: var(--copper);
}
.approach-lead > p {
  color: rgb(244 241 234 / 62%);
}

.principle-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(28px, 5vw, 72px);
  margin: 105px 0 0;
  padding: 0;
  list-style: none;
}

.principle-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 22px;
  padding-top: 25px;
  border-top: 1px solid rgb(244 241 234 / 19%);
}

.principle-mark {
  color: var(--copper);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
}

.principle-list p {
  color: rgb(244 241 234 / 62%);
}

.about {
  color: var(--graphite);
}
.about::before {
  top: 0;
  bottom: 0;
}

.about-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
  gap: clamp(55px, 9vw, 150px);
  align-items: start;
}

.about-intro > div {
  padding-top: 10px;
}
.about .large-copy {
  margin-top: 0;
  color: var(--graphite);
  font-size: 1.25rem;
  line-height: 1.62;
}

.founder {
  display: grid;
  grid-template-columns: minmax(250px, 0.75fr) minmax(400px, 1.25fr);
  gap: clamp(50px, 9vw, 150px);
  margin-top: 120px;
  padding-top: 46px;
  border-top: 1px solid rgb(34 38 43 / 22%);
}

.founder-profile-picture {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.founder-profile-picture img {
  width: 100%;
  height: auto;
  border: 3px solid var(--copper);
  border-radius: 50%;
}

.founder-monogram span {
  color: var(--deep-copper);
  font-family: var(--mono);
  font-size: clamp(4rem, 8vw, 7rem);
  font-weight: 600;
  letter-spacing: -0.1em;
}

.founder-monogram small {
  position: absolute;
  right: 14px;
  bottom: 14px;
  color: var(--slate);
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.founder-copy .item-number {
  margin-bottom: 20px;
}
.founder-copy .role {
  margin: 9px 0 33px;
  color: var(--slate);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.founder-copy > p:not(.role, .item-number) {
  max-width: 680px;
}

.contact {
  position: relative;
  overflow: hidden;
  background: var(--graphite);
}

.contact::after {
  content: "SF";
  position: absolute;
  right: -0.08em;
  bottom: -0.23em;
  color: rgb(244 241 234 / 2.8%);
  font-family: var(--mono);
  font-size: min(42vw, 38rem);
  font-weight: 600;
  letter-spacing: -0.15em;
  line-height: 1;
}

.contact-inner {
  position: relative;
  z-index: 1;
  width: var(--page);
  margin: 0 auto;
  padding: clamp(50px, 13vw, 150px) 0 100px;
}

.contact .section-kicker {
  color: rgb(244 241 234 / 45%);
}
.contact .section-kicker span {
  color: var(--copper);
}
.contact h2 {
  max-width: 900px;
  color: var(--stone);
}
.contact h2 em {
  color: var(--copper);
}

.contact-inner > p {
  max-width: 610px;
  margin: 42px 0 0;
  color: rgb(244 241 234 / 66%);
  font-size: 1.1rem;
  line-height: 1.7;
}

.contact-link {
  display: flex;
  max-width: 720px;
  align-items: center;
  justify-content: space-between;
  margin-top: 72px;
  padding: 25px 0;
  border-top: 1px solid rgb(244 241 234 / 20%);
  border-bottom: 1px solid rgb(244 241 234 / 20%);
  font-family: var(--mono);
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  text-decoration: none;
}

.contact-link span:last-child {
  color: var(--copper);
  transition: transform 180ms ease;
}
.contact-link:hover span:last-child {
  transform: translateX(7px);
}

.contact-meta {
  display: flex;
  gap: 34px;
  margin-top: 32px;
  color: rgb(244 241 234 / 54%);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.contact-meta a {
  text-underline-offset: 4px;
}

footer {
  display: flex;
  width: var(--page);
  align-items: end;
  justify-content: space-between;
  margin: 0 auto;
  padding: 45px 0;
  color: rgb(244 241 234 / 48%);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}
.footer-brand img {
  width: 27px;
  filter: invert(92%) sepia(11%) saturate(175%) hue-rotate(351deg)
    brightness(106%);
}
.footer-brand div {
  display: grid;
  gap: 5px;
}
.footer-brand strong {
  color: rgb(244 241 234 / 78%);
  font-weight: 600;
}
.footer-brand span {
  color: rgb(244 241 234 / 35%);
}

.eyebrow {
  margin: 0 0 34px;
  color: rgb(244 241 234 / 62%);
}
.eyebrow span {
  color: var(--copper);
  margin-right: 18px;
}

h1 {
  max-width: 900px;
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(3.6rem, 7.5vw, 7.6rem);
  font-weight: 600;
  letter-spacing: -0.075em;
  line-height: 0.92;
}

h1 em {
  color: var(--copper);
  font-style: normal;
}

.hero-intro {
  max-width: 640px;
  margin: 38px 0 0;
  color: rgb(244 241 234 / 72%);
  font-size: clamp(1.08rem, 1.5vw, 1.28rem);
  line-height: 1.65;
}

.primary-link {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  margin-top: 38px;
  padding: 15px 0 10px;
  border-bottom: 2px solid var(--copper);
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.primary-link span {
  color: var(--copper);
  transition: transform 180ms ease;
}
.primary-link:hover span {
  transform: translateX(5px);
}

.hero-mark {
  align-self: center;
  justify-self: end;
  width: min(100%, 330px);
  min-height: 430px;
  border-left: 1px solid rgb(244 241 234 / 16%);
  border-right: 1px solid rgb(244 241 234 / 8%);
}

.hero-mark::before,
.hero-mark::after {
  content: "";
  position: absolute;
  width: 46px;
  height: 1px;
  background: var(--copper);
}

.hero-mark::before {
  top: 0;
  left: -23px;
}
.hero-mark::after {
  right: -23px;
  bottom: 0;
}

.hero-mark img {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 190px;
  color: var(--stone);
  filter: invert(92%) sepia(11%) saturate(175%) hue-rotate(351deg)
    brightness(106%);
  opacity: 0.9;
  transform: translate(-50%, -52%);
}

.mark-index {
  position: absolute;
  top: -3px;
  left: 18px;
  color: var(--copper);
}
.mark-note {
  position: absolute;
  right: 16px;
  bottom: 14px;
  color: rgb(244 241 234 / 48%);
  writing-mode: vertical-rl;
}

.hero-baseline {
  display: flex;
  grid-column: 1 / -1;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid rgb(244 241 234 / 16%);
  color: rgb(244 241 234 / 34%);
}

@media (max-width: 1170px) {
  .brand img {
    width: 400px;
  }
}

@media (max-width: 820px) {
  :root {
    --page: min(100% - 32px, 700px);
  }
  .site-header {
    padding-block: 20px;
  }
  .brand img {
    width: 190px;
  }
  .nav-menu {
    position: relative;
  }
  .nav-menu summary {
    display: block;
    color: rgb(244 241 234 / 70%);
    cursor: pointer;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    list-style: none;
    text-transform: uppercase;
  }
  .nav-menu summary::-webkit-details-marker {
    display: none;
  }
  .nav-menu[open] nav {
    position: absolute;
    top: 34px;
    right: 0;
    display: grid;
    width: 190px;
    gap: 0;
    padding: 8px;
    background: var(--deep-graphite);
    border: 1px solid rgb(244 241 234 / 17%);
    box-shadow: 0 16px 40px rgb(0 0 0 / 28%);
  }
  .nav-menu nav {
    display: none;
  }
  .nav-menu nav a {
    padding: 13px 12px;
  }
  .hero {
    min-height: 760px;
    grid-template-columns: 1fr;
    padding-top: 150px;
  }
  .hero-mark {
    display: none;
  }
  h1 {
    font-size: clamp(3rem, 14vw, 5.2rem);
  }
  .hero-baseline {
    gap: 20px;
  }
  .section-heading,
  .approach-lead,
  .about-intro,
  .founder {
    grid-template-columns: 1fr;
  }
  .section-heading,
  .approach-lead {
    align-items: start;
  }
  .service-list,
  .principle-list {
    grid-template-columns: 1fr;
    margin-top: 70px;
  }
  .service-list li,
  .service-list li + li {
    min-height: 0;
    padding: 30px 0 44px;
    border-right: 0;
    border-bottom: 1px solid rgb(34 38 43 / 18%);
  }
  .service-list li:last-child {
    border-bottom: 0;
  }
  .item-number {
    margin-bottom: 24px;
  }
  .principle-list {
    gap: 38px;
  }
  .founder {
    margin-top: 80px;
  }
  .founder-monogram {
    min-height: 280px;
  }
  .contact-meta {
    flex-direction: column;
    gap: 14px;
  }
  footer {
    align-items: start;
    gap: 30px;
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .brand img {
    width: 168px;
  }
  .hero {
    min-height: 700px;
    padding-top: 140px;
  }
  .hero-baseline {
    font-size: 0.58rem;
  }
  h2 {
    font-size: clamp(2.35rem, 12vw, 3.4rem);
  }
  .founder-monogram {
    min-height: 220px;
  }
  .contact-meta a:first-child {
    font-size: 0.61rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}