.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: var(--z-fixed);
  transition: all var(--transition-normal);
}

.header.scroll-header {
  background: rgba(10, 10, 10, 0.98);
  box-shadow: var(--shadow-lg);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  text-decoration: none;
}

.nav__logo-img {
  height: 70px;
  border-radius: var(--radius-lg);

}

.nav__logo-text {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
  z-index: var(--z-modal);
}

.nav__menu.show-menu {
  right: 0;
}

.nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  text-align: center;
}

.nav__link {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  text-decoration: none;
  position: relative;
  transition: var(--transition-normal);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  transform: translateX(-50%);
  transition: var(--transition-normal);
}

.nav__link:hover,
.nav__link.active-link {
  color: var(--text-primary);
}

.nav__link:hover::after,
.nav__link.active-link::after {
  width: 100%;
}

.nav__close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  font-size: var(--fs-2xl);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.nav__close:hover {
  color: var(--primary-color);
  transform: rotate(90deg);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav__social {
  display: flex;
  gap: var(--space-3);
}

.nav__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
}

.nav__social-link:hover {
  background: var(--primary-color);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.nav__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
}

.nav__toggle:hover {
  background: var(--primary-color);
  transform: translateY(-2px);
}

@media screen and (min-width: 1024px) {
  .nav__menu {
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    flex-direction: row;
    align-items: center;
    justify-content: center;
  }

  .nav__list {
    flex-direction: row;
    gap: var(--space-8);
  }

  .nav__link {
    font-size: var(--fs-base);
  }

  .nav__close,
  .nav__toggle {
    display: none;
  }

  .nav__social {
    display: flex;
  }
}

@media screen and (max-width: 1023px) {
  .nav__social {
    display: none;
  }
}

@media screen and (max-width: 768px) {
  .nav {
    height: 70px;
  }

  .nav__logo-text {
    font-size: var(--fs-lg);
  }

  .nav__logo-img {
    width: 65px;
    height: 45px;
  }

  .nav__toggle,
  .nav__social-link {
    width: 35px;
    height: 35px;
  }
}

.nav__menu.show-menu .nav__item {
  animation: slideInUp 0.3s ease forwards;
}

.nav__menu.show-menu .nav__item:nth-child(1) {
  animation-delay: 0.1s;
}

.nav__menu.show-menu .nav__item:nth-child(2) {
  animation-delay: 0.2s;
}

.nav__menu.show-menu .nav__item:nth-child(3) {
  animation-delay: 0.3s;
}

.nav__menu.show-menu .nav__item:nth-child(4) {
  animation-delay: 0.4s;
}

.nav__menu.show-menu .nav__item:nth-child(5) {
  animation-delay: 0.5s;
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}