:root {
  --shell-pad: 20px;
  --bg: #f2f2f4;
  --elev: #ffffff;
  --elev-2: #fafafb;
  --fg: #0b0b0d;
  --dim: #6a6a72;
  --faint: #a8a8b0;
  --hair: rgba(11, 11, 13, .08);
  --hair-2: rgba(11, 11, 13, .18);
  --accent: #3564E7;
  --accent-dim: rgba(53, 100, 231, .1);
  --accent-2: #EE5353;

  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Geist", "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  --grotesk: "Geist", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  --display: "Archivo Black", var(--grotesk);

  --fs-hero: clamp(42px, 6.5vw, 84px);
  --fs-section: clamp(28px, 3.8vw, 48px);
  --fs-sub: clamp(18px, 1.8vw, 22px);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 60px;
  --radius-pill: 999px;

  --shell-max: 1240px;
  --section-gap: 80px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-wrap: break-word;
  word-wrap: break-word;
  hyphens: auto;
}
@media (min-width: 720px) {
  body { font-size: 18px; }
}

.shell {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 0 var(--shell-pad);
}
@media (min-width: 720px) {
  :root { --shell-pad: 28px; }
}

.mono { font-family: var(--mono); }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(242, 242, 244, .82);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--hair);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}
.nav__mark {
  font-family: var(--display);
  font-size: 22px;
  letter-spacing: -.01em;
  color: var(--fg);
}
.nav__sub {
  color: var(--dim);
  font-size: 12px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* Hero */
.hero {
  padding: clamp(80px, 14vh, 180px) 0 clamp(60px, 12vh, 140px);
}
.hero__kicker {
  color: var(--dim);
  font-size: 13px;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin: 0 0 24px;
}
.hero__title {
  font-family: var(--grotesk);
  font-weight: 600;
  font-size: var(--fs-hero);
  line-height: 1.02;
  letter-spacing: -.025em;
  margin: 0 0 40px;
}
.hero__title-dim { color: var(--dim); }
.hero__lead {
  font-size: var(--fs-sub);
  line-height: 1.45;
  color: var(--fg);
  max-width: 720px;
  margin: 0;
}

/* Blocks */
.block {
  padding: clamp(56px, 8vw, var(--section-gap)) 0;
  border-top: 1px solid var(--hair);
}
.block--accent {
  background: var(--elev);
}
.block--dark {
  background: var(--fg);
  color: var(--bg);
}
.block--dark .block__num,
.block--dark .block__title { color: var(--bg); }
.block--dark .block__body p { color: var(--bg); }
.block--dark .block__body p.lead { color: var(--bg); }

.block__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}
.block__num {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--dim);
}
.block__title {
  font-family: var(--grotesk);
  font-weight: 600;
  font-size: var(--fs-section);
  letter-spacing: -.02em;
  line-height: 1.05;
  margin: 0;
}
.block__body {
  max-width: 760px;
}
.block__body p {
  margin: 0 0 20px;
  font-size: 18px;
  line-height: 1.65;
}
.block__body p.lead {
  font-size: 24px;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: -.01em;
  color: var(--fg);
  margin: 32px 0;
}

/* Grid */
.grid {
  display: grid;
  gap: 16px;
  margin-top: 48px;
}
.grid--4 {
  grid-template-columns: 1fr;
}
.grid--3 {
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 960px) {
  .grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.card {
  background: var(--elev);
  border: 1px solid var(--hair);
  border-radius: var(--radius-md);
  padding: 24px;
}
.card--lg { padding: 28px; }
.card__tag {
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 12px;
}
.card__h {
  font-family: var(--grotesk);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.25;
  letter-spacing: -.01em;
  margin: 0 0 12px;
  color: var(--fg);
}
.card__txt {
  font-size: 15px;
  line-height: 1.55;
  color: var(--fg);
  margin: 0;
}

/* Quote block */
.block--quote {
  background: var(--fg);
  color: var(--bg);
  padding: clamp(80px, 14vh, 140px) 0;
  border: none;
}
.block--quote .shell {
  display: grid;
  gap: 80px;
}
@media (min-width: 720px) {
  .block--quote .shell { grid-template-columns: 1fr 1fr; }
}
.quote {
  margin: 0;
  font-family: var(--grotesk);
  font-weight: 600;
  font-size: clamp(24px, 2.6vw, 36px);
  line-height: 1.15;
  letter-spacing: -.02em;
  color: var(--bg);
}
.quote p { margin: 0; }

/* Signature */
.block--sign {
  border-top: 1px solid var(--hair);
  background: var(--elev);
}
.sign__by {
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 12px;
}
.sign__name {
  font-size: 22px;
  line-height: 1.45;
  max-width: 720px;
  margin: 0 0 24px;
  color: var(--fg);
}
.sign__co {
  font-size: 13px;
  color: var(--dim);
  margin: 0;
}

/* Foot */
.foot {
  padding: 40px 0 80px;
  border-top: 1px solid var(--hair);
}
.foot__inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.foot__line {
  font-size: 13px;
  letter-spacing: -.005em;
  font-weight: 500;
  color: var(--dim);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
}
.foot__mark {
  font-family: var(--display);
  font-size: 16px;
  letter-spacing: -.01em;
  font-weight: 900;
  color: var(--fg);
}
.foot__dot { color: var(--faint); }
.foot__sub { color: var(--dim); }

/* Selection */
::selection {
  background: var(--accent);
  color: var(--bg);
}