*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

html {
  scrollbar-gutter: stable;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: Inter, sans-serif;
}

main {
  flex: 1;
}

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

.container {
  width: min(100% - 3rem, 80rem);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  box-sizing: border-box;
  height: 97px;
  background: rgba(251, 249, 244, 0.9);
  border-bottom: 1px solid rgba(26, 26, 26, 0.12);
  backdrop-filter: blur(6px);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 97px;
  max-width: 1280px;
  margin-inline: auto;
  padding: 0 48px;
}

.site-nav {
  position: absolute;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 36px;
  transform: translateX(-50%);
}

.site-nav-panel,
.site-nav-card {
  display: contents;
}

.site-nav a {
  position: relative;
  transition: color 0.2s ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -2px;
  left: 0;
  height: 1px;
  background: #1a1a1a;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: #1a1a1a;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-nav a[aria-current="page"]:not(.nav-contribute) {
  color: #1a1a1a;
}

.site-nav a.nav-contribute {
  margin-left: 8px;
  padding: 16px 32px;
  overflow: hidden;
  color: #fbf9f4;
  background: #6e4032;
  font-size: 14px;
  line-height: 20px;
  letter-spacing: 0.08em;
  isolation: isolate;
}

.site-nav a.nav-contribute::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: #5a3429;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.site-nav a.nav-contribute::after {
  display: none;
}

.site-nav a.nav-contribute:hover,
.site-nav a.nav-contribute:focus-visible {
  color: #fbf9f4;
}

.site-nav a.nav-contribute:hover::before,
.site-nav a.nav-contribute:focus-visible::before {
  transform: scaleX(1);
}

.menu-button {
  display: none;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-button-bars,
.menu-button-bars::before,
.menu-button-bars::after {
  display: block;
  width: 18px;
  height: 1.5px;
  background: #1a1a1a;
  transition: transform 0.24s ease, top 0.24s ease, background 0.18s ease;
}

.menu-button-bars {
  position: relative;
}

.menu-button-bars::before,
.menu-button-bars::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-button-bars::before {
  top: -6px;
}

.menu-button-bars::after {
  top: 6px;
}

.menu-button[aria-expanded="true"] .menu-button-bars {
  background: transparent;
}

.menu-button[aria-expanded="true"] .menu-button-bars::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-button[aria-expanded="true"] .menu-button-bars::after {
  top: 0;
  transform: rotate(-45deg);
}

.site-footer {
  background: #f5f3ee;
}

.footer-main {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.5rem 0 1rem;
}

.footer-legal {
  padding: 0 0 1.25rem;
}

.footer-top {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  color: #1a1a1a;
}

.footer-top svg {
  width: 18px;
  height: 18px;
}

@media (max-width: 900px) {
  .header-inner {
    padding: 0 24px;
  }

  .menu-button {
    display: grid;
  }

  .site-nav {
    display: grid;
    top: calc(97px + 10px);
    left: auto;
    right: 24px;
    z-index: 10;
    width: min(220px, calc(100vw - 48px));
    grid-template-rows: 0fr;
    margin: 0;
    overflow: hidden;
    background: transparent;
    transform: translateY(-10px);
    pointer-events: none;
    transition: grid-template-rows 0.34s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.34s cubic-bezier(0.2, 0.8, 0.2, 1);
  }

  .site-nav-panel {
    display: block;
    min-height: 0;
    overflow: hidden;
  }

  .site-nav-card {
    display: flex;
    flex-direction: column;
    padding: 6px 4px;
    background: rgba(251, 249, 244, 0.98);
    border: 1px solid rgba(26, 26, 26, 0.12);
    box-shadow: 0 18px 36px rgba(26, 26, 26, 0.08);
  }

  .site-nav a {
    width: 100%;
    padding-right: 16px;
    padding-left: 16px;
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 0.24s ease, transform 0.32s ease, color 0.18s ease, background 0.2s ease, box-shadow 0.2s ease;
  }

  .site-nav a.nav-contribute {
    width: calc(100% - 16px);
    margin: 8px 8px 6px;
    text-align: center;
    transition: opacity 0.24s ease, transform 0.32s ease, color 0.18s ease;
  }

  .site-nav.is-open {
    grid-template-rows: 1fr;
    transform: none;
    pointer-events: auto;
  }

  .site-nav.is-open a {
    opacity: 1;
    transform: none;
  }

  .site-nav.is-open a:nth-child(1) {
    transition-delay: 0.06s;
  }

  .site-nav.is-open a:nth-child(2) {
    transition-delay: 0.12s;
  }

  .site-nav.is-open a:nth-child(3) {
    transition-delay: 0.18s;
  }

  .site-nav.is-open a:nth-child(4) {
    transition-delay: 0.24s;
  }

  .footer-main {
    align-items: flex-start;
  }
}