/* Header styles for Janusz Kluba Combat Hog */

.kc-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(180deg, rgba(11,16,32,0.98), rgba(11,16,32,0.94));
  border-bottom: 1px solid var(--color-border-subtle);
  backdrop-filter: blur(18px);
}

.kc-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-10);
  padding-bottom: var(--space-10);
}

.kc-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.kc-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
  color: var(--gray-50);
  text-decoration: none;
}

.kc-header__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 40% 60% 55% 45%;
  background: radial-gradient(circle at 30% 20%, #19a0d3 0, #127ea6 32%, #0b1020 70%);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(179, 186, 197, 0.45);
}

.kc-header__logo-text {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
}

.kc-header__nav {
  display: flex;
  align-items: center;
}

.kc-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-10);
  list-style: none;
  margin: 0;
  padding: 0;
}

.kc-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.25rem;
  font-size: var(--font-size-sm);
  color: var(--gray-200);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color var(--transition-md);
}

.kc-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, #127ea6, #19a0d3);
  transition: width var(--transition-md);
}

.kc-header__nav-link:hover,
.kc-header__nav-link:focus-visible {
  color: var(--gray-50);
}

.kc-header__nav-link:hover::after,
.kc-header__nav-link:focus-visible::after {
  width: 100%;
}

.kc-header__nav-link--cta {
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #127ea6, #0c566f);
  color: var(--gray-50);
  border: 1px solid rgba(179, 186, 197, 0.35);
  box-shadow: var(--shadow-sm);
}

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

.kc-header__nav-link--cta:hover,
.kc-header__nav-link--cta:focus-visible {
  background: linear-gradient(135deg, #19a0d3, #0f6b8a);
}

.kc-header__nav-item--cta {
  margin-left: var(--space-6);
}

/* Mobile toggle */

.kc-header__toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border-strong);
  background: rgba(16, 22, 37, 0.95);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  color: var(--gray-50);
}

.kc-header__toggle-bar {
  width: 20px;
  height: 2px;
  border-radius: var(--radius-full);
  background-color: var(--gray-200);
  transition: transform var(--transition-md), opacity var(--transition-md), width var(--transition-md);
}

.kc-header__toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* Mobile open state */

.kc-header__toggle--open .kc-header__toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.kc-header__toggle--open .kc-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.kc-header__toggle--open .kc-header__toggle-bar:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}

/* Responsive behavior */

@media (max-width: 900px) {
  .kc-header__toggle {
    display: inline-flex;
  }

  .kc-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at top, #12314a 0, #050813 55%, #000 100%);
    border-bottom: 1px solid var(--color-border-subtle);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    pointer-events: none;
    max-height: 0;
    overflow: hidden;
    transition: opacity var(--transition-md), transform var(--transition-md), max-height var(--transition-md);
  }

  .kc-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-10) var(--space-16) var(--space-16);
    gap: var(--space-6);
  }

  .kc-header__nav-link {
    padding: 0.35rem 0;
    font-size: var(--font-size-md);
  }

  .kc-header__nav-item--cta {
    margin-left: 0;
    margin-top: var(--space-4);
  }

  .kc-header__nav--open {
    opacity: 1;
    pointer-events: auto;
    transform: scaleY(1);
    max-height: 360px;
  }
}

@media (max-width: 480px) {
  .kc-header__logo-text {
    font-size: 0.7rem;
  }

  .kc-header__logo-mark {
    width: 32px;
    height: 32px;
  }
}

/* High contrast focus ring on nav links */

.kc-header__nav-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}