/* Canonical Visuloma navigation.
   Visual metrics follow the homepage header so every entry page feels related. */
:root {
  --vis-nav-height: 80px;
  --vis-nav-logo-height: 28px;
  --vis-nav-inline: 92vw;
  --vis-nav-max: 1240px;
  --vis-nav-ease: cubic-bezier(.22, 1, .36, 1);
}

/* Shared editorial / SEO pages */
.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  padding: 22px 0;
  color: #fafaf8;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: padding .5s var(--vis-nav-ease), background .5s var(--vis-nav-ease), border-color .5s;
}
.site-nav.is-scrolled,
.site-nav.scrolled {
  padding: 16px 0;
  background: rgba(14, 12, 10, .9);
  border-bottom-color: rgba(255, 255, 255, .12);
  box-shadow: none;
  -webkit-backdrop-filter: blur(9px);
  backdrop-filter: blur(9px);
}
.site-nav .nav-inner,
.site-nav .site-nav-inner {
  width: min(var(--vis-nav-max), var(--vis-nav-inline));
  height: auto;
  min-height: var(--vis-nav-logo-height);
  margin: 0 auto;
  gap: 30px;
  justify-content: space-between;
}
.site-nav .brand {
  display: flex;
  width: auto;
  margin-right: 0;
  align-items: center;
  flex: none;
}
.site-nav .brand img {
  width: auto;
  height: var(--vis-nav-logo-height);
}
.site-nav .nav-links,
.site-nav .site-links {
  gap: 34px;
  margin-left: 0;
  font-size: 11px;
  line-height: 22px;
  letter-spacing: .22em;
}
.site-nav .nav-links a,
.site-nav .site-links a {
  color: rgba(250, 250, 248, .82);
  opacity: 1;
  font-size: 11px;
  letter-spacing: .22em;
}
.site-nav .nav-links a:hover,
.site-nav .nav-links a[aria-current="page"],
.site-nav .site-links a:hover,
.site-nav .site-links a.current {
  color: #fafaf8;
}
.site-nav .nav-service,
.site-nav .site-service { padding-block: 28px; }
.site-nav .nav-submenu,
.site-nav .site-submenu { top: 54px; }
.site-nav .nav-cta,
.site-nav .site-start {
  padding: 12px 24px;
  border: 1px solid #c4ae96;
  background: #c4ae96;
  color: #0e0c0a;
  font-size: 11px;
  letter-spacing: .22em;
  transition: background .4s var(--vis-nav-ease), color .4s var(--vis-nav-ease), border-color .4s var(--vis-nav-ease);
}
.site-nav .nav-cta:hover,
.site-nav .site-start:hover {
  border-color: #5f503f;
  background: #5f503f;
  color: #ece4d8;
}

/* Case studies uses different class names, but the same optical scale. */
.topbar {
  min-height: 112px;
  height: 112px;
  padding: 0;
}
.topbar .case-nav-inner {
  display: flex;
  width: min(var(--vis-nav-max), var(--vis-nav-inline));
  height: 100%;
  margin: 0 auto;
  align-items: center;
  gap: 30px;
  justify-content: space-between;
}
.topbar .logo { width: auto; flex: none; }
.topbar .logo { margin-right: 0; }
.topbar .logo img { width: auto; height: var(--vis-nav-logo-height); }
.topbar .top-links { gap: 34px; font-size: 11px; letter-spacing: .22em; }
.topbar .start {
  padding: 12px 24px;
  border-color: #c4ae96;
  background: #c4ae96;
  color: #0e0c0a;
}

.shared-nav-toggle {
  display: none;
  position: relative;
  width: 34px;
  height: 24px;
  margin-left: auto;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
}
.shared-nav-toggle span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transition: top .4s var(--vis-nav-ease), transform .4s var(--vis-nav-ease), opacity .3s;
}
.shared-nav-toggle span:nth-child(1) { top: 2px; }
.shared-nav-toggle span:nth-child(2) { top: 11px; }
.shared-nav-toggle span:nth-child(3) { top: 20px; }
.shared-nav-toggle[aria-expanded="true"] span:nth-child(1) { top: 11px; transform: rotate(45deg); }
.shared-nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.shared-nav-toggle[aria-expanded="true"] span:nth-child(3) { top: 11px; transform: rotate(-45deg); }
.shared-mobile-nav {
  position: fixed;
  z-index: 999;
  inset: var(--vis-nav-height) 0 auto;
  display: grid;
  max-height: 0;
  overflow: hidden;
  background: rgba(14, 12, 10, .97);
  color: #fafaf8;
  opacity: 0;
  visibility: hidden;
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  transition: max-height .55s var(--vis-nav-ease), opacity .35s, visibility .35s;
}
.shared-mobile-nav.open { max-height: 540px; opacity: 1; visibility: visible; }
.shared-mobile-nav a {
  min-height: 52px;
  padding: 15px 24px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  font: 300 18px/1.35 'Cormorant Garamond', 'Noto Serif TC', serif;
  letter-spacing: .08em;
}

.site-nav a:focus-visible,
.topbar a:focus-visible,
.shared-nav-toggle:focus-visible,
.shared-mobile-nav a:focus-visible {
  outline: 2px solid #c4ae96;
  outline-offset: 5px;
}
.filterbar .filter:focus-visible {
  outline: 2px solid #9a7556;
  outline-offset: 3px;
}
.filterbar {
  overflow-x: auto;
  scrollbar-width: none;
}
.filterbar::-webkit-scrollbar { display: none; }

@media (max-width: 900px) {
  .site-nav .nav-links,
  .site-nav .site-links,
  .site-nav .nav-cta,
  .site-nav .site-start,
  .topbar .top-links { display: none; }
  .site-nav .site-menu { display: block; }
  .shared-nav-toggle { display: block; }
  .topbar .start { margin-left: auto; }
  .topbar .shared-nav-toggle { margin-left: 0; }
}

@media (max-width: 760px) {
  :root { --vis-nav-height: 72px; --vis-nav-logo-height: 27px; }
  .site-nav { padding: 22px 0; }
  .site-nav.is-scrolled,
  .site-nav.scrolled { padding: 16px 0; }
  .site-nav .nav-inner,
  .site-nav .site-nav-inner { width: calc(100% - 36px); min-height: var(--vis-nav-logo-height); }
  .site-nav .brand { width: auto; }
  .topbar { min-height: var(--vis-nav-height); height: var(--vis-nav-height); padding: 0; }
  .topbar .case-nav-inner { width: calc(100% - 36px); }
  .topbar .logo { width: auto; }
  .topbar .start { display: none; }
  .filterbar { justify-content: flex-start; }

}

@media (prefers-reduced-motion: reduce) {
  .site-nav, .shared-nav-toggle span, .shared-mobile-nav { transition: none; }
}