/*=============== NAVIGATION ===============*/
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.nav.scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.nav__logo { height: 110px; display: flex; align-items: center; }
.nav__logo img { height: 110px; width: auto; object-fit: contain; }
[data-theme="dark"] .logo-light { display: none; }
[data-theme="dark"] .logo-dark  { display: block; }
[data-theme="light"] .logo-dark { display: none; }
[data-theme="light"] .logo-light { display: block; }

.nav__links { display: flex; align-items: center; gap: 2.25rem; }
.nav__link {
  font-family: var(--f-ui);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-3);
  transition: color 0.25s;
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 100%;
  height: 1px;
  background: var(--accent);
  transition: right 0.3s var(--ease);
}
.nav__link:hover, .nav__link.active { color: var(--fg); }
.nav__link:hover::after, .nav__link.active::after { right: 0; }

.nav__actions { display: flex; align-items: center; gap: 0.75rem; }

.nav__countries {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  border: 1px solid var(--border-hi);
  border-radius: 2px;
  padding: 0.28rem 0.55rem;
}
.nav__country {
  font-family: var(--f-ui);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-3);
  padding: 0.2rem 0.4rem;
  border-radius: 1px;
  transition: all 0.2s;
}
.nav__country:hover { color: var(--fg); background: var(--accent-bg); }
.nav__country-sep { color: var(--border-hi); font-size: 0.7rem; }

.nav__theme {
  width: 36px; height: 36px;
  border: 1px solid var(--border-hi);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--fg-3);
  font-size: 0.78rem;
  transition: all 0.25s;
}
.nav__theme:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-bg); }
[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun  { display: none; }
[data-theme="light"] .icon-moon { display: block; }

.nav__hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.nav__hamburger span {
  display: block; width: 24px; height: 1.5px;
  background: var(--fg); transition: all 0.3s var(--ease);
}
.nav__hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-h); inset-inline: 0;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem var(--pad) 2rem;
  z-index: 999;
  flex-direction: column;
  gap: 0;
}
.nav__mobile.open { display: flex; }
.nav__mobile-link {
  font-family: var(--f-ui);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-3);
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}
.nav__mobile-link:last-child { border-bottom: none; }
.nav__mobile-link:hover { color: var(--accent); }