.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid #e8e8e8;
  height: 100px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  height: 100%;
  padding: 0 40px;
}

.logo-wrap img {
  height: 58px;
}

.site-nav {
  display: flex;
  justify-content: flex-end;
  gap: 48px;
  margin-right: 48px;
}

.site-nav a {
  color: #1a1a1a;
  font-size: 16.5px;
  font-weight: 600;
  letter-spacing: -0.3px;
  transition: color 0.2s;
  position: relative;
  padding: 8px 0;
}

.site-nav a:hover {
  color: #555;
}

.site-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: #1a1a1a;
  transition: width 0.25s ease;
}

.site-nav a:hover::after {
  width: 100%;
}

.kakao-btn {
  padding: 11px 26px;
  border: 1.5px solid #1a1a1a;
  border-radius: 6px;
  color: #1a1a1a;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.2px;
  transition: all 0.25s;
}

.kakao-btn:hover {
  background: #1a1a1a;
  color: #fff;
}