:root {
  --blue: #1598ee;
  --blue-dark: #087bc4;
  --charcoal: #666666;
  --dark: #17191c;
  --muted: #6e747a;
  --light: #f5f7f9;
  --border: #d9dde1;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--dark);
  font-family:
    Inter,
    "Segoe UI",
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  line-height: 1.65;
}


/* HERO */

.hero {
  width: 100%;
  padding: 3rem 2rem 2rem;
  display: flex;
  justify-content: center;
  border-bottom: 1px solid var(--border);
}

.logo {
  display: block;
  width: min(1500px, 96vw);
  height: auto;
}


/* GENERAL CONTENT */

.intro,
.principles,
.vision-inner,
.chet {
  width: min(1100px, calc(100% - 3rem));
  margin-left: auto;
  margin-right: auto;
}

.intro {
  padding: 6rem 0 5rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--blue-dark);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

h1 {
  max-width: 950px;
  margin: 0 0 2rem;
  font-size: clamp(2.5rem, 5vw, 5rem);
  line-height: 1.04;
  font-weight: 300;
  letter-spacing: -0.045em;
}

h1 span {
  color: var(--blue);
}

.lead {
  max-width: 850px;
  margin: 0 0 1.5rem;
  color: #34393e;
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  line-height: 1.55;
}

.intro > p:not(.eyebrow):not(.lead) {
  max-width: 820px;
  font-size: 1.08rem;
  color: var(--muted);
}


/* PRINCIPLES */

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  padding-bottom: 6rem;
}

.principles article {
  padding: 2.5rem;
  border-top: 3px solid var(--blue);
  border-right: 1px solid var(--border);
}

.principles article:first-child {
  border-left: 1px solid var(--border);
}

.number {
  display: block;
  margin-bottom: 1.75rem;
  color: var(--blue);
  font-family:
    "Courier New",
    Courier,
    monospace;
  font-size: 0.85rem;
}

.principles h2 {
  margin: 0 0 1rem;
  font-size: 1.7rem;
  font-weight: 500;
}

.principles p {
  margin: 0;
  color: var(--muted);
}


/* VISION */

.vision {
  background:
    linear-gradient(
      135deg,
      #111315 0%,
      #1b2024 100%
    );
  color: white;
}

.vision-inner {
  padding: 6rem 0;
}

.vision h2 {
  max-width: 850px;
  margin: 0 0 2rem;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.1;
  font-weight: 300;
}

.vision p:not(.eyebrow) {
  max-width: 750px;
  color: #c2c7cb;
  font-size: 1.15rem;
}


/* CHET */

.chet {
  padding: 7rem 0;
  text-align: center;
}

.chet-link {
  display: inline-block;
  color: var(--dark);
  text-decoration: none;
  font-family:
    "Courier New",
    Courier,
    monospace;
  font-size: clamp(1.8rem, 5vw, 4rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  transition:
    color 180ms ease,
    transform 180ms ease;
}

.chet-link span {
  color: var(--blue);
}

.chet-link:hover,
.chet-link:focus-visible {
  color: var(--blue-dark);
  transform: translateY(-2px);
}


/* FOOTER */

footer {
  padding: 1.25rem 2rem;
  background: var(--light);
  border-top: 1px solid var(--border);
  color: #777;
  text-align: center;
  font-size: 0.78rem;
}

footer a {
  color: inherit;
}

footer a:hover {
  color: var(--blue-dark);
}


/* RESPONSIVE */

@media (max-width: 800px) {

  .hero {
    padding: 2rem 0.75rem 1.5rem;
  }

  .intro {
    padding-top: 4rem;
  }

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

  .principles article {
    border-left: 1px solid var(--border);
  }

  .vision-inner {
    padding: 4rem 0;
  }

  .chet {
    padding: 5rem 0;
  }
}