.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  border-bottom: 1px solid hsl(var(--border) / 0.28);
  background: hsl(var(--background) / 0.42);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 32px hsl(0 0% 0% / 0.08);
  transition: background 300ms ease, border-color 300ms ease, box-shadow 300ms ease;
}

.site-header.is-scrolled {
  border-bottom: 1px solid hsl(var(--border) / 0.5);
  box-shadow: 0 12px 30px hsl(0 0% 0% / 0.1);
}

.nav-inner {
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.95rem;
  font-weight: 600;
  transition: color 220ms ease;
}

.brand:hover {
  color: hsl(var(--primary));
}

.brand img {
  height: 2.25rem;
  width: auto;
  transition: transform 250ms ease;
}

.brand:hover img {
  transform: scale(1.05);
}

.desktop-nav {
  --nav-indicator-opacity: 0;
  --nav-indicator-width: 1.5rem;
  --nav-indicator-x: 0px;
  position: relative;
  display: none;
  align-items: center;
  gap: 0.25rem;
}

.desktop-nav::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.1rem;
  width: var(--nav-indicator-width);
  height: 2px;
  border-radius: 999px;
  background: hsl(var(--primary));
  opacity: var(--nav-indicator-opacity);
  pointer-events: none;
  transform: translate3d(var(--nav-indicator-x), 0, 0);
  will-change: transform, width;
}

.desktop-nav.is-indicator-ready::after {
  transition: transform 360ms cubic-bezier(0.2, 0.8, 0.2, 1), width 360ms cubic-bezier(0.2, 0.8, 0.2, 1), opacity 180ms ease;
}

.nav-link {
  position: relative;
  padding: 0.5rem 0.75rem;
  border-radius: 0.6rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 220ms ease, background 220ms ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: hsl(var(--primary));
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon-button,
.pill-button {
  border: 1px solid hsl(var(--border) / 0.5);
  background: transparent;
  color: hsl(var(--muted-foreground));
  transition: border-color 220ms ease, color 220ms ease, background 220ms ease, transform 220ms ease;
}

.icon-button:hover,
.pill-button:hover {
  border-color: hsl(var(--primary) / 0.35);
  color: hsl(var(--primary));
}

.site-header [data-lang-toggle],
.site-header [data-theme-toggle],
.site-header [data-lang-toggle]:hover,
.site-header [data-theme-toggle]:hover {
  border-color: hsl(var(--primary) / 0.35);
}

.light .site-header .brand,
.light .site-header .nav-link,
.light .site-header .icon-button,
.light .site-header .pill-button {
  color: hsl(var(--foreground));
}

.light .site-header .brand:hover,
.light .site-header .nav-link:hover,
.light .site-header .nav-link.is-active,
.light .site-header .icon-button:hover,
.light .site-header .pill-button:hover {
  color: hsl(var(--primary));
}

.icon-button {
  width: 2.25rem;
  height: 2.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
}

.pill-button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.auth-link {
  display: none;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  transition: opacity 220ms ease, transform 220ms ease;
}

.auth-link:hover {
  opacity: 0.9;
}

.auth-link.donate-link,
.mobile-auth-link.donate-link {
  background: hsl(var(--primary) / 0.72);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.auth-link.donate-link:hover,
.mobile-auth-link.donate-link:hover {
  background: hsl(var(--primary) / 0.82);
}

.menu-toggle {
  border: 0;
  background: transparent;
  color: hsl(var(--foreground));
}

.mobile-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  background: hsl(0 0% 0% / 0.6);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.mobile-panel {
  position: fixed;
  inset-block: 0;
  inset-inline-start: 0;
  z-index: 70;
  width: min(18rem, 82vw);
  display: flex;
  flex-direction: column;
  background: hsl(var(--card));
  border-inline-end: 1px solid hsl(var(--border) / 0.5);
  box-shadow: 0 24px 80px hsl(0 0% 0% / 0.35);
  transform: translateX(-105%);
  transition: transform 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

body[dir="rtl"] .mobile-panel {
  inset-inline-start: 0;
  inset-inline-end: auto;
  transform: translateX(105%);
  border-inline-start: 0;
  border-inline-end: 1px solid hsl(var(--border) / 0.5);
}

.mobile-backdrop.is-open {
  display: block;
  animation: fadeIn 220ms ease forwards;
}

.mobile-panel.is-open,
body[dir="rtl"] .mobile-panel.is-open {
  transform: translateX(0);
}

.mobile-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem;
  border-bottom: 1px solid hsl(var(--border) / 0.5);
}

.mobile-links {
  display: grid;
  gap: 0.25rem;
  padding: 1.25rem;
}

.mobile-link {
  padding: 0.8rem 1rem;
  border-radius: 0.75rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 220ms ease, color 220ms ease;
}

.mobile-link:hover {
  background: hsl(var(--muted) / 0.5);
  color: hsl(var(--foreground));
}

.mobile-link.is-active {
  background: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
}

.mobile-auth {
  margin: auto 1.25rem 2rem;
  display: grid;
  gap: 0.75rem;
}

.mobile-auth-link {
  padding: 0.9rem 1rem;
  border-radius: 0.85rem;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}

.site-footer {
  background: hsl(var(--background));
  border-top: 1px solid hsl(var(--border) / 0.3);
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  padding-block: 4rem;
}

.footer-column {
  text-align: center;
}

.footer-title {
  margin: 0 0 1rem;
  color: hsl(var(--primary));
  font-size: 0.9rem;
  font-weight: 700;
  text-align: center;
}

.footer-copy {
  max-width: 20rem;
  margin: 0 auto 1rem;
  color: hsl(var(--muted-foreground));
  font-size: 0.8rem;
  line-height: 1.8;
}

.newsletter-form {
  display: flex;
  gap: 0.5rem;
}

.newsletter-form input {
  min-width: 0;
  flex: 1;
  padding: 0.7rem 0.85rem;
  border: 1px solid hsl(var(--border) / 0.5);
  border-radius: 0.7rem;
  background: hsl(var(--background));
  font-size: 0.78rem;
  outline: none;
}

.newsletter-form input:focus {
  border-color: hsl(var(--primary) / 0.55);
}

.newsletter-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  border: 0;
  border-radius: 0.7rem;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

.instagram-grid {
  width: min(11.25rem, 100%);
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.instagram-grid a {
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 0.45rem;
}

.instagram-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}

.instagram-grid a:hover img {
  transform: scale(1.1);
}

.social-row {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
}

.social-link {
  width: 2.5rem;
  height: 2.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid hsl(var(--border) / 0.5);
  border-radius: 999px;
  color: hsl(var(--muted-foreground));
  transition: color 220ms ease, border-color 220ms ease, transform 220ms ease;
}

.social-link:hover {
  color: hsl(var(--primary));
  border-color: hsl(var(--primary) / 0.5);
  transform: scale(1.08);
}

.footer-links {
  display: flex;
  flex-wrap: nowrap;
  justify-content: center;
  gap: 0.75rem 1rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.footer-links a {
  flex: 0 0 auto;
  color: hsl(var(--muted-foreground));
  font-size: 0.78rem;
  transition: color 180ms ease;
}

.footer-links a:hover {
  color: hsl(var(--primary));
}

.footer-bottom {
  position: relative;
}

.footer-bottom::before {
  content: "";
  display: block;
  width: min(100% - 2rem, 80rem);
  height: 2px;
  margin-inline: auto;
  border-radius: 999px;
  background: hsl(var(--border) / 0.36);
}

.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding-block: 1.25rem;
  color: hsl(var(--muted-foreground) / 0.75);
  font-size: 0.7rem;
  text-align: center;
}

.footer-bottom-inner p {
  margin: 0;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

#scroll-to-top {
  position: fixed;
  right: max(2rem, env(safe-area-inset-right));
  bottom: max(2rem, env(safe-area-inset-bottom));
  z-index: 40;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 50%;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  box-shadow: 0 4px 20px hsl(var(--primary) / 0.3);
  opacity: 0;
  pointer-events: none;
  transform: translateY(1rem);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

#scroll-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

#scroll-to-top.is-visible:hover {
  transform: translateY(0) scale(1.1);
}

@media (min-width: 768px) {
  .nav-inner {
    height: 5rem;
  }

  .brand img {
    height: 2.75rem;
  }

  .auth-link {
    display: inline-flex;
  }

  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-column {
    text-align: center;
  }

  .footer-column.center {
    text-align: center;
  }

  .footer-copy {
    margin-inline: 0;
  }

}

@media (min-width: 768px) and (max-width: 1023.98px) {
  .footer-contact-column {
    text-align: center;
  }

  .footer-contact-column .footer-copy {
    margin-inline: auto;
  }
}

@media (min-width: 1024px) {
  .desktop-nav {
    display: flex;
  }

  .menu-toggle {
    display: none;
  }

  .footer-main {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer-links {
    flex-direction: column;
    align-items: center;
    overflow-x: visible;
  }
}