/* Header layout and navigation */
:root {
  --header-height: 84px;
  --header-background: #ffffff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 600;
  background: var(--header-background);
  color: #050505;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(5, 5, 5, 0.08);
}

.site-header .container {
  width: min(var(--layout-max-width), 100%);
  padding-inline: clamp(20px, 4vw, 60px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: clamp(16px, 2.6vw, 36px);
  min-height: var(--header-height);
  padding-block: clamp(12px, 2vw, 18px);
  flex-wrap: nowrap;
  position: relative;
  z-index: 2;
}

.header-brand {
  display: inline-flex;
  align-items: center;
  gap: clamp(10px, 1.8vw, 16px);
  color: inherit;
  text-decoration: none;
}

@media (min-width: 961px) {
  .header-brand {
    margin-right: clamp(18px, 3.2vw, 56px);
  }
}

.header-brand,
.nav-toggle {
  position: relative;
  z-index: 3;
}

body.is-nav-open .site-header .container,
body.is-nav-open .header-inner,
body.is-nav-open .header-brand,
body.is-nav-open .nav-toggle {
  z-index: 650;
}

.header-brand img {
  width: clamp(128px, 15vw, 168px);
  max-width: 175px;
  height: auto;
  display: block;
  object-fit: contain;
}

.header-brand__text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
  text-align: left;
}

.header-brand__title {
  font-size: clamp(0.76rem, 0.9vw, 0.86rem);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
  white-space: nowrap;
}

.header-brand__subtitle {
  font-size: clamp(0.6rem, 0.8vw, 0.72rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(5, 5, 5, 0.55);
  white-space: nowrap;
}

.site-nav {
  flex: 1 1 auto;
  margin-left: 0;
}

.header-cta {
  display: none;
}

.site-nav__list {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: clamp(12px, 2vw, 22px);
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
  width: auto;
}

.site-nav__item {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding-block: 4px;
  font-size: clamp(0.82rem, 0.9vw, 0.95rem);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(5, 5, 5, 0.62);
  transition: color 220ms ease;
  white-space: nowrap;
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: #050505;
}

.site-nav__link:focus-visible {
  outline: 2px solid rgba(5, 5, 5, 0.4);
  outline-offset: 4px;
}

.site-nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 1px;
  background: rgba(5, 5, 5, 0.32);
  opacity: 0;
  transform: scaleX(0.4);
  transform-origin: left;
  transition: transform 320ms ease, opacity 320ms ease;
}

.site-nav__link:hover::after,
.site-nav__link.is-active::after,
.site-nav__link:focus-visible::after {
  opacity: 1;
  transform: scaleX(1);
}

.site-nav__link.is-active {
  color: #050505;
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  border: 1px solid #050505;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: clamp(0.78rem, 0.95vw, 0.92rem);
  color: #ffffff;
  background: #050505;
  transition: transform 260ms var(--transition-base);
  white-space: nowrap;
}

.site-nav__cta:hover {
  transform: translateY(-2px);
}

.site-nav__cta:focus-visible {
  outline: 2px solid rgba(5, 5, 5, 0.4);
  outline-offset: 4px;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(5, 5, 5, 0.18);
  background: transparent;
  color: #050505;
  cursor: pointer;
  transition: background 200ms ease, color 200ms ease;
  margin-left: auto;
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
}

@media (hover: hover) and (pointer: fine) {
  .nav-toggle:hover {
    background: rgba(5, 5, 5, 0.08);
  }
}

.nav-toggle:focus-visible {
  outline: 2px solid rgba(5, 5, 5, 0.4);
  outline-offset: 4px;
}

body.is-nav-open .nav-toggle {
  background: #050505;
  color: #ffffff;
  border-color: #050505;
}

@media (max-width: 960px) {
  .site-nav {
    position: absolute;
    top: calc(100% + clamp(10px, 2vw, 14px));
    right: clamp(12px, 3vw, 20px);
    left: auto;
    background: var(--header-background);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    width: max-content;
    min-width: clamp(260px, 56vw, 360px);
    max-width: calc(100vw - clamp(24px, 6vw, 40px));
    min-height: 0;
    max-height: min(72vh, calc(100vh - var(--header-height) - 8px));
    padding: clamp(8px, 2vw, 10px) clamp(16px, 3vw, 22px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 280ms ease, transform 280ms ease, visibility 0s linear 280ms;
    margin-left: 0;
    overflow-y: auto;
    z-index: 500;
    border: 1px solid rgba(5, 5, 5, 0.12);
    border-radius: var(--radius-md);
    box-shadow: 0 18px 36px rgba(5, 5, 5, 0.16);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: clamp(4px, 1vw, 8px);
    width: 100%;
  }

  .site-nav__item {
    width: 100%;
    display: block;
  }

  .site-nav__link {
    display: flex;
    width: 100%;
    min-height: 44px;
    padding-block: clamp(12px, 2.8vw, 16px);
    font-size: clamp(0.95rem, 2.5vw, 1.05rem);
    letter-spacing: 0.1em;
    white-space: nowrap;
    line-height: 1.35;
  }

  .site-nav__link::after {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header-cta {
    display: none;
  }

  body.is-nav-open .site-nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
    transition-delay: 0s;
  }
}

@media (max-width: 720px) {
  :root {
    --header-height: 74px;
  }

  .header-brand img {
    width: clamp(112px, 38vw, 152px);
  }
}

@media (min-width: 961px) {
  .nav-toggle {
    margin-left: 0;
  }

  .site-nav {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    margin-inline: clamp(18px, 3vw, 56px);
  }

  .site-nav__list {
    justify-content: space-between;
    gap: clamp(24px, 4vw, 60px);
    width: min(520px, 100%);
  }

  .site-nav__item {
    flex: 1;
    justify-content: center;
  }

  .site-nav__link {
    justify-content: center;
  }

  .header-cta {
    display: inline-flex;
    margin-left: clamp(10px, 1.6vw, 22px);
  }
}