/**
 * BlackRat — Header / Navigation
 */

.br-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--br-z-header);
  height: var(--br-header-h);
  transition:
    background var(--br-dur-card) var(--br-ease),
    border-color var(--br-dur-card) var(--br-ease),
    backdrop-filter var(--br-dur-card);
  border-bottom: 1px solid transparent;
}

.br-header.is-scrolled {
  background: rgba(5, 5, 5, 0.78);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.br-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: min(100% - 2.5rem, var(--br-container-wide));
  margin-inline: auto;
  gap: 1rem;
}

.br-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  line-height: 0;
}

.br-logo__img {
  display: block;
  height: 40px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
}

.br-logo--footer .br-logo__img {
  height: 52px;
  max-width: 220px;
}

.br-loader__logo {
  display: block;
  height: 48px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  margin-bottom: 0.25rem;
}

/* Legacy fallbacks if mark/text still used elsewhere */
.br-logo__mark {
  width: 28px;
  height: 28px;
  background: var(--br-black);
  border: 1px solid rgba(255, 23, 68, 0.4);
  border-radius: 8px;
  display: grid;
  place-items: center;
  position: relative;
  box-shadow: 0 0 20px rgba(255, 23, 68, 0.2);
}

.br-logo__mark::after {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--br-red);
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(255, 23, 68, 0.8);
}

.br-logo__text {
  font-family: var(--br-font-alt);
  font-weight: 900;
  font-size: 1.125rem;
  letter-spacing: 0.14em;
  color: var(--br-text);
}

.br-logo__text span {
  color: var(--br-red);
}

.br-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.br-nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.br-nav__link {
  position: relative;
  display: inline-block;
  padding: 0.5rem 0.875rem;
  color: var(--br-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: color var(--br-dur-micro) var(--br-ease);
}

.br-nav__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0.2rem;
  width: 0;
  height: 1px;
  background: var(--br-red);
  transform: translateX(-50%);
  transition: width var(--br-dur-btn) var(--br-ease);
}

.br-nav__link:hover,
.br-nav__link.is-active,
.br-nav__link[aria-current="page"] {
  color: var(--br-red);
}

.br-nav__link:hover::after,
.br-nav__link.is-active::after,
.br-nav__link[aria-current="page"]::after {
  width: calc(100% - 1.75rem);
}

.br-header__cta {
  flex-shrink: 0;
}

.br-nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: var(--br-glass-2-bg);
  border: 1px solid var(--br-border);
  border-radius: var(--br-radius-sm);
  color: var(--br-text);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.br-nav-toggle svg {
  width: 20px;
  height: 20px;
}

/* Mega menu */
.br-mega {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 520px;
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 250ms var(--br-ease),
    transform 250ms var(--br-ease),
    visibility 250ms;
  z-index: 100;
}

.br-nav__item {
  position: relative;
}

.br-nav__item:hover .br-mega,
.br-nav__item:focus-within .br-mega {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.br-mega__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.br-mega__link {
  display: flex;
  gap: 0.75rem;
  padding: 0.875rem;
  border-radius: var(--br-radius-sm);
  text-decoration: none;
  color: var(--br-text);
  border: 1px solid transparent;
  transition: background var(--br-dur-btn), border-color var(--br-dur-btn);
}

.br-mega__link:hover {
  background: rgba(255, 23, 68, 0.06);
  border-color: rgba(255, 23, 68, 0.2);
  color: var(--br-text);
}

.br-mega__icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255, 23, 68, 0.1);
  border: 1px solid rgba(255, 23, 68, 0.2);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  color: var(--br-red);
}

.br-mega__icon svg {
  width: 16px;
  height: 16px;
}

.br-mega__title {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.br-mega__desc {
  font-size: 0.75rem;
  color: var(--br-text-secondary);
  line-height: 1.4;
}

@media (max-width: 1024px) {
  .br-nav-toggle {
    display: inline-flex;
  }

  .br-nav {
    position: fixed;
    top: var(--br-header-h);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(5, 5, 5, 0.96);
    backdrop-filter: blur(24px);
    padding: 1.5rem;
    flex-direction: column;
    align-items: stretch;
    transform: translateX(100%);
    transition: transform 300ms var(--br-ease);
    overflow-y: auto;
  }

  .br-nav.is-open {
    transform: translateX(0);
  }

  .br-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .br-nav__link {
    padding: 1rem 0;
    font-size: 1.125rem;
    border-bottom: 1px solid var(--br-border);
  }

  .br-mega {
    position: static;
    transform: none;
    min-width: 0;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    padding: 0.5rem 0 1rem;
    display: none;
  }

  .br-nav__item.is-expanded .br-mega {
    display: block;
  }

  .br-mega__grid {
    grid-template-columns: 1fr;
  }

  .br-header__cta {
    display: none;
  }

  .br-nav .br-header__cta-mobile {
    display: block;
    margin-top: 1.5rem;
  }
}

.br-header__cta-mobile {
  display: none;
}