/* Header Navigation Styles */
.header-nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  transition: background-color 0.3s ease;
}

.header-nav.scrolled {
  background-color: rgba(255, 255, 255, 0.9);
}

.header-nav__logo__img {
    width: 120px;
}

.header-nav__inner {
  max-width: 375px;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.header-nav__logo {
  display: flex;
  align-items: center;
}

.header-nav__logo a {
  text-decoration: none;
  color: #333;
  font-weight: bold;
  font-size: 1.25rem;
  transition: color 0.3s ease;
}

.header-nav__logo a:hover {
  color: #666;
}

.logo-text {
  font-family: 'Noto Sans JP', sans-serif;
}

/* Mobile styles */
@media (max-width: 768px) {
  .header-nav__inner {
    max-width: 100%;
    padding: 1rem;
  }
  
  .header-nav__logo a {
    font-size: 1.1rem;
  }
}

/* Desktop styles */
@media (min-width: 769px) {
  .header-nav {
    width: 400px;
  }

  .header-nav__inner {
    max-width: 375px;
    padding: 1.5rem 1rem;
  }
  
  .header-nav__logo a {
    font-size: 1.25rem;
  }
}