:root {
  --background: 0 0% 100%;
  --foreground: 0 0% 8%;
  --muted-foreground: 0 0% 40%;
  --border: 0 0% 90%;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Libre Baskerville', Georgia, 'Times New Roman', serif;

  --content-width: 72ch;
  --section-spacing: 5rem;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.75;
  color: hsl(var(--foreground));
  background-color: hsl(var(--background));
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 2.75rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.75rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
}

p {
  margin-bottom: 1.25rem;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

::selection {
  background-color: hsl(0 0% 8%);
  color: hsl(0 0% 100%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: hsla(0, 0%, 100%, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid hsl(var(--border));
}

.site-header nav {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header .logo {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  transition: color 0.15s ease;
}

.nav-links a:hover {
  color: hsl(var(--foreground));
}

@media (max-width: 640px) {
  .nav-links {
    gap: 1rem;
    font-size: 0.8125rem;
  }
}

main {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hero {
  padding-top: 4rem;
  padding-bottom: var(--section-spacing);
}

.hero h1 {
  margin-bottom: 0.75rem;
}

.hero .subtitle {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-style: italic;
  color: hsl(var(--muted-foreground));
  margin-bottom: 2rem;
}

.hero .intro {
  color: hsl(var(--muted-foreground));
  max-width: 58ch;
}

.kicker {
  display: block;
  width: 3rem;
  height: 1px;
  background-color: hsl(var(--border));
  margin-top: 3rem;
}

.section-divider {
  border: none;
  height: 1px;
  background-color: hsl(var(--border));
  margin: 0;
}

section {
  padding: var(--section-spacing) 0;
}

section p,
section li {
  color: hsl(var(--muted-foreground));
}

.bullet-list {
  margin-bottom: 1.5rem;
}

.bullet-list li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.75rem;
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 4px;
  height: 1px;
  background-color: hsl(var(--muted-foreground));
}

.note {
  font-size: 0.9375rem;
  font-style: italic;
  color: hsl(var(--muted-foreground));
  padding-top: 0.5rem;
}

.entity-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem 3rem;
  margin-bottom: 2rem;
}

@media (max-width: 640px) {
  .entity-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

.entity-grid dt {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: hsl(var(--foreground));
  margin-bottom: 0.25rem;
}

.entity-grid dd {
  color: hsl(var(--muted-foreground));
}

.contact-list dt {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: hsl(var(--foreground));
  margin-bottom: 0.25rem;
}

.contact-list dd {
  color: hsl(var(--muted-foreground));
  margin-bottom: 1.25rem;
}

.contact-list dd:last-child {
  margin-bottom: 0;
}

.contact-list a {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: hsl(var(--border));
  transition: text-decoration-color 0.15s ease;
}

.contact-list a:hover {
  text-decoration-color: hsl(var(--foreground));
}

.site-footer {
  border-top: 1px solid hsl(var(--border));
  margin-top: 2rem;
}

.site-footer .footer-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.site-footer .footer-name {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  margin-bottom: 0.5rem;
}

.site-footer p {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 0.25rem;
}

@media (max-width: 640px) {
  :root {
    --section-spacing: 3.5rem;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .hero .subtitle {
    font-size: 1.125rem;
  }

  .nav-links {
    display: none;
  }
}

.site-header nav {
  gap: 1rem;
}

.lang-switch {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  white-space: nowrap;
}

.lang-switch a {
  color: inherit;
  transition: color 0.15s ease;
}

.lang-switch a:hover {
  color: hsl(var(--foreground));
}

.lang-switch a[aria-current="page"] {
  color: hsl(var(--foreground));
}

.site-footer a {
  text-decoration: underline;
  text-underline-offset: 3px;
  color: inherit;
}

.site-footer a:hover {
  text-decoration-color: currentColor;
}

.site-header .logo {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: inherit;
  text-decoration: none;
}