:root {
  --black: #000000;
  --white: #ffffff;
  --line: #dedede;
  --muted: #666666;
  --page-width: 1120px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--white);
  color: var(--black);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: #e9e9e9;
  color: var(--black);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  background: var(--black);
  color: var(--white);
  transform: translateY(-200%);
}

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

.header-instagram {
  position: fixed;
  top: clamp(1rem, 2.2vw, 1.75rem);
  right: var(--gutter);
  z-index: 20;
  color: var(--muted);
  font-size: clamp(0.72rem, 1vw, 0.86rem);
  letter-spacing: 0.015em;
  line-height: 1;
  text-decoration: none;
  transition: color 220ms ease;
}

.header-instagram:hover,
.header-instagram:focus-visible {
  color: var(--black);
}

.site-header,
main,
.site-footer {
  width: min(100%, calc(var(--page-width) + (var(--gutter) * 2)));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-header {
  padding-top: clamp(3rem, 7vw, 6rem);
  padding-bottom: clamp(0.35rem, 0.8vw, 0.7rem);
}

.logo-link {
  display: block;
  width: clamp(21rem, 48vw, 36rem);
  margin-inline: auto;
}

.logo {
  width: 100%;
  height: auto;
}

.intro {
  max-width: 900px;
  padding-top: 0;
  padding-bottom: clamp(7rem, 14vw, 11rem);
}

.intro h1 {
  max-width: 17ch;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.7rem, 7vw, 6.6rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.intro p {
  margin: clamp(1.4rem, 3vw, 2.5rem) 0 0;
  color: var(--muted);
  font-size: clamp(1.4rem, 2.45vw, 2rem);
  letter-spacing: 0.005em;
  line-height: 1.35;
}

.content-section {
  display: grid;
  grid-template-columns: minmax(3rem, 0.4fr) minmax(0, 2.6fr);
  gap: clamp(1.5rem, 6vw, 7rem);
  padding-block: clamp(4.5rem, 9vw, 8rem);
  border-top: 1px solid var(--line);
}

.section-number {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
}

.section-content {
  max-width: 760px;
}

.section-content h2 {
  margin: 0 0 clamp(2rem, 4vw, 3.5rem);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.8rem, 3.45vw, 2.75rem);
  font-weight: 400;
  letter-spacing: -0.028em;
  line-height: 1.08;
}

.section-content p,
.principles li {
  max-width: 65ch;
  margin: 0 0 1.4rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
  line-height: 1.82;
}

.section-content p:last-child {
  margin-bottom: 0;
}

.principles ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.principles li {
  margin-bottom: 0.7rem;
  font-weight: 500;
}

.principles li:last-child {
  margin-bottom: 0;
}

.follow-section {
  padding-block: clamp(6rem, 13vw, 10rem);
  border-top: 1px solid var(--line);
}

.follow-section p {
  margin: 0 0 0.9rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.55rem, 3.1vw, 2.7rem);
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.follow-section a {
  display: inline-block;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  text-decoration: none;
  transition: color 220ms ease;
  overflow-wrap: anywhere;
}

.follow-section a:hover,
.follow-section a:focus-visible {
  color: var(--black);
}

.site-footer {
  padding-top: 1.5rem;
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
  border-top: 1px solid var(--black);
}

.footer-logo-link {
  display: block;
  width: clamp(7rem, 15vw, 10rem);
}

.footer-logo {
  width: 100%;
  height: auto;
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 650ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 650ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

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

@media (max-width: 680px) {
  .header-instagram {
    top: 1rem;
    right: 1.1rem;
    max-width: calc(100vw - 2.2rem);
    font-size: 0.69rem;
  }

  .site-header {
    padding-top: 3.2rem;
    padding-bottom: 0.2rem;
  }

  .logo-link {
    width: min(94vw, 27rem);
  }

  .intro {
    padding-top: 0;
    padding-bottom: 6.5rem;
  }

  .intro h1 {
    max-width: 15ch;
    font-size: clamp(2.4rem, 12.5vw, 4.2rem);
    line-height: 1;
  }

  .intro p {
    max-width: 20ch;
    margin-top: 1.35rem;
    font-size: clamp(1.3rem, 6.2vw, 1.65rem);
  }

  .content-section {
    grid-template-columns: 1fr;
    gap: 1.2rem;
    padding-block: 4rem;
  }

  .section-number {
    margin: 0;
  }

  .section-content h2 {
    margin-bottom: 1.65rem;
    font-size: clamp(1.8rem, 7.4vw, 2.25rem);
  }

  .section-content p,
  .principles li {
    font-size: 1.05rem;
    line-height: 1.7;
  }

  .principles li {
    margin-bottom: 0.75rem;
  }

  .follow-section {
    padding-block: 5rem;
  }

  .follow-section p {
    max-width: 16ch;
    font-size: clamp(1.75rem, 8.4vw, 2.4rem);
  }

  .site-footer {
    padding-top: 1.25rem;
    padding-bottom: 2.5rem;
  }

  .footer-logo-link {
    width: 7.5rem;
  }
}

@media (max-width: 380px) {
  :root {
    --gutter: 1rem;
  }

  .header-instagram {
    right: 1rem;
    font-size: 0.65rem;
  }

  .logo-link {
    width: 96vw;
  }

  .intro h1 {
    font-size: 2.25rem;
  }
}

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

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