/* ===========================
   Header
=========================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: var(--color-primary);
  height: var(--header-height);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
}

.header-logo {
  flex-shrink: 0;
}

.header-logo img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
}

.header-nav {
  flex: 1;
}

.header-nav__list {
  display: flex;
  gap: 36px;
  align-items: center;
}

.header-nav__list a {
  font-family: var(--font-title);
  font-size: 15px;
  color: var(--color-white);
  letter-spacing: 0.05em;
  transition: opacity var(--transition);
  white-space: nowrap;
}

.header-nav__list a:hover {
  opacity: 0.7;
}

.header-sns {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.header-sns a {
  color: var(--color-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: opacity var(--transition);
}

.header-sns .sns-label {
  font-size: 12px;
  line-height: 1;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.header-sns a:hover {
  opacity: 0.7;
}

.hamburger {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.hamburger img {
  width: 28px;
  height: 28px;
  filter: brightness(0) invert(1);
}

.hamburger-label {
  font-size: 12px;
  color: var(--color-white);
  letter-spacing: 0.08em;
  line-height: 1;
}

/* ===========================
   SP Nav Overlay
=========================== */
.sp-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: var(--color-primary);
  z-index: 200;
  flex-direction: column;
  padding: 40px 32px;
}

.sp-nav-overlay.is-open {
  display: flex;
}

.sp-nav-close {
  background: none;
  border: none;
  cursor: pointer;
  align-self: flex-end;
  padding: 4px;
}

.sp-nav-close img {
  width: 32px;
  height: 32px;
  filter: brightness(0) invert(1);
}

.sp-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.sp-nav ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.sp-nav ul a {
  font-family: var(--font-title);
  font-size: 20px;
  color: var(--color-white);
  letter-spacing: 0.1em;
}

.sp-nav-sns {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 40px;
}

.sp-nav-sns a {
  color: var(--color-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.sp-nav-sns a svg {
  width: 40px;
  height: 40px;
}

.sp-nav-sns .sns-label {
  font-size: 13px;
  line-height: 1;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

/* ===========================
   Body offset for fixed header
=========================== */
body {
  padding-top: var(--header-height);
}

/* ===========================
   Responsive
=========================== */
@media (max-width: 1060px) {
  .header-nav,
  .header-sns {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}