.shared-header {
  width: 100%;
  height: 82px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 0 0 auto;
  border-bottom: 1px solid #24262a;
  background: transparent;
  box-sizing: border-box;
}

.shared-header a {
  color: inherit;
  text-decoration: none;
}

.shared-header .brand {
  color: #f1f2f4;
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, "Segoe UI", sans-serif;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -1px;
  flex-shrink: 0;
}

.shared-header .brand span {
  color: #909398;
  font-weight: 400;
}

.shared-header nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #b7b9be;
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, "Segoe UI", sans-serif;
  font-size: 13px;
}

.shared-header .nav-github {
  padding: 10px 16px;
  border: 1px solid rgba(255,255,255,.19);
  border-radius: 30px;
  background: radial-gradient(circle at 18% 0%,rgba(255,255,255,.16),transparent 44%),linear-gradient(135deg,rgba(255,255,255,.105),rgba(255,255,255,.035) 52%,rgba(255,255,255,.075));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.2),inset 0 -1px 0 rgba(255,255,255,.035),0 6px 20px rgba(0,0,0,.2);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
}

@media (max-width: 800px) {
  .shared-header { height: 72px; padding-inline: 24px; }
  .shared-header nav { gap: 18px; }
}

@media (max-width: 560px) {
  .shared-header nav { gap: 16px; font-size: 11px; }
  .shared-header nav a:nth-child(3) { display: none; }
  .shared-header .nav-github { padding: 8px 12px; }
}