header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--color-bg-header-footer);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 14px var(--color-shadow);
  padding: 20px 0;
  z-index: 10000;
}

header .container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

header h1 {
  font-size: 26px;
  color: var(--color-primary);
  
  margin: 0;
  font-weight: 700;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: center;
}

nav a {
  color: var(--color-text-light);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 6px 0;
  
  transition: all 0.3s ease;
}

nav a:hover,
nav a:focus {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  outline: none;
}
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--color-bg-header-footer);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 14px var(--color-shadow);
  padding: 16px 0;
  z-index: 10000;
}

header .container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

header h1 {
  font-size: 26px;
  color: var(--color-primary);
  font-weight: 700;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: center;
}

nav a {
  color: var(--color-text-light);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
}

nav a:hover,
nav a:focus {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  outline: none;
}