/* Navigation */
.nav { position: fixed; top: 0; left: 0; right: 0; background: rgba(255,255,255,0.08); backdrop-filter: blur(25px) saturate(150%) contrast(120%); -webkit-backdrop-filter: blur(25px) saturate(150%) contrast(120%); z-index: var(--z-nav); padding: 1.2rem 0; transition: all var(--transition-normal); border-bottom: 1px solid rgba(255,255,255,0.12); box-shadow: 0 4px 32px rgba(0,0,0,0.1); }
.nav.scrolled { background: rgba(255,255,255,0.12); padding: 0.8rem 0; backdrop-filter: blur(35px) saturate(180%) contrast(130%); -webkit-backdrop-filter: blur(35px) saturate(180%) contrast(130%); border-bottom: 1px solid rgba(246,191,0,0.25); box-shadow: 0 8px 48px rgba(0,0,0,0.15); }
.nav__container { max-width: var(--container-max-width); margin: 0 auto; padding: 0 var(--spacing-md); display: flex; justify-content: space-between; align-items: center; min-height: 60px; }
.nav__logo a { text-decoration: none; display: block; }
.nav__logo h1 { font-family: var(--font-logo) !important; font-size: 1.5rem; color: var(--color-accent); margin: 0; font-weight: normal; display: flex; align-items: center; height: 100%; }
.nav__logo h1 img { height: 36px; width: auto; max-width: 180px; object-fit: contain; vertical-align: middle; display: block; transition: all var(--transition-fast); filter: brightness(1.1); }
.nav__logo:hover h1 img { transform: scale(1.05); filter: brightness(1.2); }

.nav__logo h1 picture { display: block; }
.nav__menu { display: flex; gap: 2.5rem; align-items: center; }
.nav__link { font-family: var(--font-english) !important; font-size: 0.85rem; font-weight: 400; letter-spacing: 0.08em; padding: 0.75rem 1rem; border-radius: 8px; position: relative; overflow: hidden; transition: all var(--transition-fast); color: rgba(200, 200, 200, 0.9); text-shadow: 0 1px 0 rgba(255, 255, 255, 0.15), 0 -1px 0 rgba(0, 0, 0, 0.6), 1px 0 0 rgba(0, 0, 0, 0.4), -1px 0 0 rgba(0, 0, 0, 0.4); }
.nav__link::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 0; height: 2px; background: var(--color-accent); transition: width var(--transition-fast); }
.nav__link:hover::after { width: 80%; }
.nav__link:hover { color: var(--color-accent); transform: translateY(-1px); box-shadow: 0 4px 8px rgba(0,0,0,0.1); text-shadow: 0 1px 0 rgba(255,255,255,0.25), 0 -1px 0 rgba(0,0,0,0.7), 1px 0 0 rgba(0,0,0,0.5), -1px 0 0 rgba(0,0,0,0.5); }
.nav__toggle { display: none; flex-direction: column; cursor: pointer; gap: 4px; }
.nav__toggle span { width: 25px; height: 2px; background: var(--color-white); transition: all var(--transition-fast); }

@media (max-width: 768px) {
  .nav__menu { position: fixed; top: 70px; left: 0; right: 0; background: rgba(0,0,0,0.98); flex-direction: column; padding: 2rem; transform: translateX(-100%); transition: transform 0.3s ease; display: flex; gap: 1.5rem; }
  .nav__menu.active { transform: translateX(0); }
  .nav__toggle { display: flex; }
  .nav__toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav__toggle.active span:nth-child(2) { opacity: 0; }
  .nav__toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -6px); }
}