:root {
  --paper: #ffffff;
  --card: #eff0ec;
  --ink: #2b3036;
  --ink-soft: #54595e;
  --accent: #55ab26;
  --accent-light: #8cc86a;
  --mid: #9ca59e;

  --font: "Switzer", ui-sans-serif, system-ui, sans-serif;
  --step-small: clamp(0.8125rem, 0.79rem + 0.1vw, 0.875rem);
  --step-body: clamp(1.0625rem, 1rem + 0.25vw, 1.1875rem);
  --step-lead: clamp(1.25rem, 1rem + 1vw, 1.875rem);
  --step-head: clamp(2rem, 1.3rem + 2.4vw, 3.5rem);
  --step-display: clamp(3.5rem, 0.5rem + 5.6vw, 7.5rem);

  --margin: clamp(16px, 2.2vw, 32px);
  --section-gap: clamp(96px, 12vw, 200px);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --nav-height: 64px;
}

/* Navigation */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 55;
  height: var(--nav-height);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
}

.site-nav__bar {
  display: flex;
  align-items: center;
  gap: clamp(24px, 4vw, 64px);
  max-width: 1600px;
  height: 100%;
  margin-inline: auto;
  padding-inline: var(--margin);
}

.site-nav__logo {
  flex: none;
  display: block;
}

.site-nav__logo img {
  display: block;
  width: auto;
  height: 36px;
}

.site-nav__menu {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.site-nav__menu ul {
  display: flex;
  gap: clamp(20px, 2.6vw, 40px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__menu ul a {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-decoration-thickness: 3px;
  text-underline-offset: 8px;
  transition: text-decoration-color 200ms var(--ease);
}

.site-nav__menu ul a:hover,
.site-nav__menu ul a[aria-current="page"] {
  text-decoration-color: var(--accent);
}

.site-nav__action {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 28px 0 18px;
  border-radius: 0 999px 999px 0;
  background: var(--accent);
  color: var(--ink);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 220ms var(--ease), background-color 220ms var(--ease);
}

.site-nav__action:hover {
  background: var(--accent-light);
  transform: translateX(3px);
}

.site-nav :focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.site-nav__toggle {
  display: none;
}

@media (max-width: 900px) {
  .site-nav__bar {
    justify-content: space-between;
  }

  .site-nav.is-ready .site-nav__toggle {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 4px;
    border: 0;
    background: none;
    color: var(--ink);
    font: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
  }

  .site-nav__toggle-close,
  .site-nav.is-open .site-nav__toggle-open {
    display: none;
  }

  .site-nav.is-open .site-nav__toggle-close {
    display: inline;
  }

  .site-nav.is-ready .site-nav__menu {
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 40px;
    height: calc(100svh - var(--nav-height));
    padding: 32px var(--margin) 48px;
    background: var(--paper);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 220ms var(--ease), transform 220ms var(--ease), visibility 0s linear 220ms;
  }

  .site-nav.is-open .site-nav__menu {
    visibility: visible;
    opacity: 1;
    transform: none;
    transition: opacity 220ms var(--ease), transform 220ms var(--ease);
  }

  .site-nav.is-ready .site-nav__menu ul {
    flex-direction: column;
    gap: 20px;
  }

  .site-nav.is-ready .site-nav__menu ul a {
    font-size: var(--step-head);
    font-weight: 600;
    letter-spacing: -0.03em;
  }

  .site-nav:not(.is-ready) .site-nav__menu ul {
    gap: 16px;
  }

  .site-nav:not(.is-ready) .site-nav__action {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav * {
    transition-duration: 1ms !important;
  }
}