@font-face {
  font-family: 'Cinzel';
  src: url('../fonts/cinzel-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  --bn-header-height: 84px;
}

@media (max-width: 860px) {
  :root {
    --bn-header-height: 68px;
  }
}

html {
  scroll-padding-top: var(--bn-header-height);
}

.bn-header {
  --bn-bg: #0E0E10;
  --bn-surface: #18181B;
  --bn-text: #E8E6E1;
  --bn-text-muted: #8A8780;
  --bn-copper: #C77B3F;
  --bn-green: #3A4A3F;

  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background: transparent;
  border-bottom: 0.5px solid transparent;
  transition: background-color 320ms ease, backdrop-filter 320ms ease, border-color 320ms ease, box-shadow 320ms ease;
}

.bn-header--scrolled {
  background-color: rgba(14, 14, 16, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: rgba(138, 135, 128, 0.14);
  box-shadow: 0 12px 32px -20px rgba(0, 0, 0, 0.6);
}

.bn-header__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  height: var(--bn-header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.bn-header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.bn-header__logo-icon {
  display: block;
  height: 36px;
  width: auto;
}

.bn-header__logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1;
}

.bn-header__logo-mark {
  font-family: 'Cinzel', serif;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  color: var(--bn-text);
  text-transform: uppercase;
}

.bn-header__logo-tag {
  font-family: 'Inter', 'IBM Plex Sans', sans-serif;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bn-copper);
}

.bn-nav__list {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.bn-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'Inter', 'IBM Plex Sans', sans-serif;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--bn-text-muted);
  text-decoration: none;
  padding: 8px 2px;
  transition: color 200ms ease;
}

.bn-nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 1px;
  background-color: var(--bn-copper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 240ms ease;
}

.bn-nav__link:hover,
.bn-nav__link:focus-visible {
  color: var(--bn-text);
}

.bn-nav__link:hover::after,
.bn-nav__link:focus-visible::after {
  transform: scaleX(1);
}

.bn-nav__link.is-active {
  color: var(--bn-copper);
}

.bn-nav__link.is-active::after {
  transform: scaleX(1);
}

.bn-nav__link:focus-visible {
  outline: 1px solid var(--bn-copper);
  outline-offset: 4px;
}

.bn-nav__badge {
  font-size: 0.56rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--bn-text-muted);
  border: 0.5px solid rgba(138, 135, 128, 0.4);
  border-radius: 2px;
  padding: 2px 5px;
}

.bn-nav__link--cta {
  color: var(--bn-copper);
  border: 0.5px solid var(--bn-copper);
  border-radius: 2px;
  padding: 7px 16px;
  text-transform: uppercase;
}

.bn-nav__link--cta::after { display: none; }

.bn-nav__link--cta:hover,
.bn-nav__link--cta:focus-visible,
.bn-nav__link--cta.is-active {
  background-color: var(--bn-copper);
  color: var(--bn-bg);
}

.bn-nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.bn-nav__toggle-line {
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--bn-text);
  transition: transform 260ms ease, opacity 200ms ease;
}

.bn-nav__toggle[aria-expanded="true"] .bn-nav__toggle-line:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.bn-nav__toggle[aria-expanded="true"] .bn-nav__toggle-line:nth-child(2) { opacity: 0; }
.bn-nav__toggle[aria-expanded="true"] .bn-nav__toggle-line:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 860px) {
  .bn-header__inner { height: var(--bn-header-height); padding: 0 20px; }
  .bn-header__logo-icon { height: 28px; }
  .bn-nav__toggle { display: flex; }

  .bn-nav__list {
    position: fixed;
    inset: 0;
    top: 68px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0;
    padding: 32px 28px;
    background-color: var(--bn-bg);
    border-top: 0.5px solid rgba(138, 135, 128, 0.14);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 260ms ease, transform 260ms ease, visibility 260ms;
  }

  .bn-nav__list.is-open {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
  }

  .bn-nav__item { width: 100%; border-bottom: 0.5px solid rgba(138, 135, 128, 0.14); }
  .bn-nav__link { width: 100%; padding: 18px 4px; font-size: 0.95rem; }
  .bn-nav__link::after { display: none; }
  .bn-nav__link--cta { margin-top: 20px; justify-content: center; }
  .bn-header__logo-tag { display: none; }
}

body.bn-nav-open { overflow: hidden; }