/* ============================================
   NAVIGATION - Glassmorphism Floating Pill
   ============================================ */

.nav {
  position: fixed;
  top: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  width: 95%;
  max-width: 1000px;
  z-index: 1000;
  padding: 0;
  transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  border-radius: var(--radius-full);
}

.nav--scrolled {
  background-color: oklch(13% 0.02 285 / 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--accent-glow);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
  top: var(--space-sm);
}

.nav__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
}

/* Logo - Bold accent */
.nav__logo {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  position: relative;
  transition: all 0.3s ease;
}

.nav__logo::before {
  content: '';
  position: absolute;
  top: 50%;
  left: -12px;
  transform: translateY(-50%);
  width: 4px;
  height: 70%;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nav__logo:hover {
  color: var(--accent);
}

.nav__logo:hover::before {
  opacity: 1;
}

/* Navigation Menu */
.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__item {
  position: relative;
}

/* Nav Links - Accent on hover */
.nav__link {
  font-family: var(--font-display);
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--space-xs) var(--space-sm);
  position: relative;
  transition: all 0.3s ease;
  border-radius: var(--radius-sm);
}

.nav__link:hover {
  color: var(--accent);
  background: var(--accent-glow);
}

.nav__link:active {
  background: var(--accent-dim);
}

/* Right section */
.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Language Switcher */
.lang-switcher {
  position: relative;
}

.lang-switcher__btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
}

.lang-switcher__btn:hover {
  color: var(--text-primary);
  border-color: var(--accent);
}

.lang-switcher__current {
  min-width: 24px;
  text-align: center;
}

.lang-switcher__icon {
  width: 14px;
  height: 14px;
  transition: transform 0.3s ease;
}

.lang-switcher__btn[aria-expanded="true"] .lang-switcher__icon {
  transform: rotate(180deg);
}

/* Dropdown */
.lang-switcher__dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 80px;
  padding: var(--space-xs);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.3s ease;
  z-index: 100;
}

.lang-switcher__dropdown.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-switcher__option {
  width: 100%;
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.lang-switcher__option:hover {
  color: var(--text-primary);
  background: var(--accent-glow);
}

.lang-switcher__option.is-active {
  color: var(--accent);
  background: var(--accent-dim);
}

/* Mobile Toggle */
.nav__toggle {
  display: none;
  padding: var(--space-xs);
  color: var(--text-primary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  border-radius: var(--radius-sm);
}

.nav__toggle:hover {
  color: var(--accent);
  background: var(--bg-tertiary);
}

.nav__toggle-icon {
  width: 24px;
  height: 24px;
}

/* Mobile */
@media (max-width: 768px) {
  .nav {
    padding: var(--space-sm) 0;
  }

  .nav__toggle {
    display: block;
    z-index: 1001;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 100px;
    gap: var(--space-md);
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    transition: right 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    z-index: 1000;
  }

  .nav__menu--open {
    right: 0;
  }

  .nav__link {
    font-size: var(--text-h3);
    color: var(--text-primary);
    padding: var(--space-sm) 0;
  }

  .lang-switcher__dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: transparent;
    border: none;
    padding: 0;
  }

  .lang-switcher__option {
    color: var(--text-primary);
  }
}