/* Header styles for Krag View Hub */

.kvh-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background:
    radial-gradient(circle at top, rgba(212, 175, 55, 0.10) 0, transparent 55%),
    linear-gradient(to bottom, rgba(5, 5, 7, 0.96) 0, rgba(5, 5, 7, 0.90) 40%, rgba(5, 5, 7, 0.85) 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.kvh-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-20);
  padding-top: 14px;
  padding-bottom: 14px;
}

/* Brand */
.kvh-header__brand {
  display: flex;
  align-items: center;
}

.kvh-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.kvh-header__logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 20% 0, rgba(242, 216, 122, 0.55) 0, transparent 45%),
    radial-gradient(circle at 80% 100%, rgba(31, 111, 74, 0.65) 0, transparent 50%),
    linear-gradient(145deg, #020309 0, #181a20 55%, #050507 100%);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.kvh-header__logo-icon {
  color: var(--color-accent-gold);
  font-size: 1.15rem;
}

.kvh-header__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.kvh-header__brand-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kvh-header__brand-tagline {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Navigation */
.kvh-header__nav {
  display: flex;
}

.kvh-header__nav-list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.kvh-header__nav-item {
  position: relative;
}

.kvh-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color var(--transition-base), background-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-fast);
}

.kvh-header__nav-link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 1px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.7), transparent);
  opacity: 0;
  transform: scaleX(0.5);
  transform-origin: center;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.kvh-header__nav-link:hover,
.kvh-header__nav-link:focus-visible {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.04);
}

.kvh-header__nav-link:hover::after,
.kvh-header__nav-link:focus-visible::after,
.kvh-header__nav-item--active .kvh-header__nav-link::after {
  opacity: 1;
  transform: scaleX(1);
}

.kvh-header__nav-item--cta .kvh-header__nav-link--cta {
  padding-inline: 1.2rem;
  background: linear-gradient(120deg, var(--color-accent-gold) 0, #f2d87a 40%, var(--color-accent-gold) 100%);
  color: #1b1300;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.65);
}

.kvh-header__nav-item--cta .kvh-header__nav-link--cta::after {
  display: none;
}

.kvh-header__nav-item--cta .kvh-header__nav-link--cta:hover,
.kvh-header__nav-item--cta .kvh-header__nav-link--cta:focus-visible {
  transform: translateY(-1px);
  box-shadow: var(--shadow-strong);
}

/* Mobile menu toggle */
.kvh-header__menu-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--color-text);
  cursor: pointer;
  background: radial-gradient(circle at top, rgba(212, 175, 55, 0.2) 0, rgba(5, 5, 7, 0.96) 45%);
}

.kvh-header__menu-toggle-label {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.kvh-header__menu-toggle-box {
  width: 20px;
  height: 16px;
  position: relative;
}

.kvh-header__menu-toggle-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base), top var(--transition-base), bottom var(--transition-base);
}

.kvh-header__menu-toggle-line--top {
  top: 0;
}

.kvh-header__menu-toggle-line--middle {
  top: 7px;
}

.kvh-header__menu-toggle-line--bottom {
  bottom: 0;
}

.kvh-header__menu-toggle[aria-expanded="true"] .kvh-header__menu-toggle-line--top {
  top: 7px;
  transform: rotate(45deg);
}

.kvh-header__menu-toggle[aria-expanded="true"] .kvh-header__menu-toggle-line--middle {
  opacity: 0;
}

.kvh-header__menu-toggle[aria-expanded="true"] .kvh-header__menu-toggle-line--bottom {
  bottom: 7px;
  transform: rotate(-45deg);
}

/* Mobile layout */
@media (max-width: 880px) {
  .kvh-header__inner {
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .kvh-header__menu-toggle {
    display: inline-flex;
  }

  .kvh-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 64px;
    background: radial-gradient(circle at top, rgba(212, 175, 55, 0.10) 0, transparent 60%), linear-gradient(to bottom, #050507 0, #020309 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
  }

  .kvh-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.75rem 1.25rem 1.25rem;
  }

  .kvh-header__nav-link {
    width: 100%;
    padding: 0.7rem 0.9rem;
  }

  .kvh-header__nav-link::after {
    left: 0.9rem;
    right: 0.9rem;
  }

  .kvh-header__nav--open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
}

/* Very small screens: compact brand */
@media (max-width: 520px) {
  .kvh-header__brand-tagline {
    display: none;
  }
}