.sw-site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 70;
  display: block;
  width: 100%;
  height: 94px;
  margin: 0;
  padding: 0;
  color: #fff;
  background: linear-gradient(180deg, rgba(10, 9, 8, .36), transparent);
  transition: background-color .24s ease;
  mix-blend-mode: normal;
  pointer-events: auto;
}

.sw-site-header.is-scrolled {
  background: rgba(15, 14, 13, .84);
  -webkit-backdrop-filter: blur(16px) saturate(120%);
  backdrop-filter: blur(16px) saturate(120%);
}

.sw-menu-open,
.sw-menu-open body,
.sw-menu-open #viewport {
  overflow: hidden;
}

.sw-skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 90;
  padding: 12px 16px;
  color: #0f0e0d;
  background: #f6f3ee;
  font: 600 14px/1.2 "Noto Sans TC", system-ui, sans-serif;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform .2s ease;
}

.sw-skip-link:focus-visible { transform: translateY(0); }

body.work-detail-past-hero .sw-site-header {
  opacity: 1;
  visibility: visible;
}

.sw-site-header,
.sw-site-header * { box-sizing: border-box; }

.sw-site-header__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: min(100%, 1380px);
  height: 100%;
  margin-inline: auto;
  padding-inline: clamp(28px, 5vw, 78px);
}

.sw-brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 12px;
  min-height: 44px;
  color: #fff;
  text-decoration: none;
  pointer-events: auto;
}

.sw-brand__symbol {
  display: block;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  background: url("/assets/logo/logo-mark.webp") no-repeat -17.8px -1.2px / 65.7px 53.5px;
}

.sw-brand__copy { display: flex; flex-direction: column; line-height: 1; }
.sw-brand strong { font: 600 13px/1 "Work Sans", "Noto Sans TC", system-ui, sans-serif; letter-spacing: .2em; }
.sw-brand small { margin-top: 6px; font: 600 10px/1 "Noto Sans TC", system-ui, sans-serif; letter-spacing: .25em; }

.sw-site-nav {
  display: flex;
  align-items: center;
  justify-self: center;
  gap: clamp(14px, 1.85vw, 34px);
  pointer-events: auto;
}

.sw-site-nav a {
  position: relative;
  min-height: 44px;
  padding: 16px 0 12px;
  color: #fff;
  font: 600 11px/1 "Work Sans", "Noto Sans TC", system-ui, sans-serif;
  letter-spacing: .075em;
  text-decoration: none;
}

.sw-site-nav a::after {
  position: absolute;
  right: 100%;
  bottom: 5px;
  left: 0;
  height: 1px;
  content: "";
  background: #fff;
  transition: right .2s ease;
}

.sw-site-nav a:hover::after,
.sw-site-nav a:focus-visible::after,
.sw-site-nav a[aria-current="page"]::after { right: 0; }

.sw-brand:focus-visible,
.sw-site-nav a:focus-visible,
.sw-menu-toggle:focus-visible,
.sw-skip-link:focus-visible { outline: 2px solid #fff; outline-offset: 4px; }

.sw-menu-toggle { display: none; }

@media (max-width: 900px) {
  .sw-site-header { height: 82px; }
  .sw-site-header__inner { grid-template-columns: 1fr auto; }
  .sw-site-nav { display: none; }
  .sw-menu-toggle {
    display: grid;
    grid-column: 2;
    justify-self: end;
    place-content: center;
    gap: 7px;
    width: 44px;
    height: 44px;
    padding: 10px;
    border: 0;
    color: #fff;
    background: transparent;
    cursor: pointer;
    pointer-events: auto;
  }
  .sw-menu-toggle span { width: 23px; height: 1px; background: #fff; transition: transform .2s ease; }
  .sw-menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .sw-menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .sw-site-nav.is-open {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: grid;
    justify-self: stretch;
    justify-items: center;
    gap: 0;
    width: 100%;
    padding: 18px clamp(28px, 5vw, 78px) 26px;
    border-top: 1px solid rgba(255, 255, 255, .24);
    color: #fff;
    background: rgba(15, 14, 13, .94);
    backdrop-filter: blur(14px);
  }
  .sw-site-nav.is-open a { width: 100%; text-align: center; }
}

@media (max-width: 760px) {
  .sw-site-header { height: 72px; }
  .sw-site-header__inner { padding-inline: 20px; }
  .sw-brand { gap: 8px; }
  .sw-brand__symbol {
    flex-basis: 28px;
    width: 28px;
    height: 28px;
    background-position: -17px -1.1px;
    background-size: 61.3px 50px;
  }
  .sw-brand strong { font-size: 9.5px; letter-spacing: .16em; }
  .sw-brand small { margin-top: 4px; font-size: 7.5px; letter-spacing: .18em; }
  .sw-site-nav.is-open { padding-inline: 20px; }
}

@media (max-width: 360px) {
  .sw-site-header__inner { padding-inline: 16px; }
  .sw-site-nav.is-open { padding-inline: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .sw-site-header * { transition: none !important; }
}