/* Header styles for Knit Vibe NL */

.kv-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(to bottom, rgba(5, 7, 8, 0.98), rgba(5, 7, 8, 0.92));
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(208, 184, 120, 0.18);
}

.kv-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

/* Brand */

.kv-header__brand {
  display: flex;
  align-items: center;
}

.kv-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
}

.kv-header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 0%, rgba(245, 166, 35, 0.45), transparent 55%),
              linear-gradient(145deg, #0c4a3a, #050708);
  border: 1px solid rgba(208, 184, 120, 0.6);
  box-shadow: var(--shadow-soft);
}

.kv-header__logo-symbol {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text);
}

.kv-header__brand-text {
  display: flex;
  flex-direction: column;
}

.kv-header__brand-name {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.kv-header__brand-tagline {
  font-size: var(--font-size-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Navigation */

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

.kv-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.kv-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-sm);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0.35rem 0.1rem;
}

.kv-header__nav-link::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: -0.2rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent-amber), var(--color-accent-gold));
  transform-origin: center;
  transform: scaleX(0);
  opacity: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.kv-header__nav-link:hover,
.kv-header__nav-link:focus-visible {
  color: var(--color-text);
}

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

.kv-header__nav-item--cta .kv-header__nav-link {
  padding-inline: 1.25rem;
}

.kv-header__nav-link--cta {
  border-radius: var(--radius-pill);
  border: 1px solid rgba(208, 184, 120, 0.7);
  background: radial-gradient(circle at top, rgba(245, 166, 35, 0.32), transparent 60%),
              linear-gradient(135deg, #0c4a3a, #050708);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
}

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

.kv-header__nav-link--cta:hover,
.kv-header__nav-link--cta:focus-visible {
  background: radial-gradient(circle at top, rgba(245, 166, 35, 0.45), transparent 60%),
              linear-gradient(135deg, #156f57, #050708);
}

/* Mobile toggle */

.kv-header__toggle {
  display: none;
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid rgba(208, 184, 120, 0.55);
  background: rgba(5, 7, 8, 0.9);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.kv-header__toggle:focus-visible {
  outline: 2px solid var(--color-accent-amber);
  outline-offset: 3px;
}

.kv-header__toggle-bar {
  width: 1.25rem;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base), translate var(--transition-base);
}

.kv-header__toggle-bar + .kv-header__toggle-bar {
  margin-top: 0.22rem;
}

.kv-header--menu-open .kv-header__toggle-bar:nth-child(1) {
  transform: rotate(45deg);
  translate: 0 4px;
}

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

.kv-header--menu-open .kv-header__toggle-bar:nth-child(3) {
  transform: rotate(-45deg);
  translate: 0 -4px;
}

/* Mobile layout */

@media (max-width: 768px) {
  .kv-header__inner {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
  }

  .kv-header__brand-tagline {
    display: none;
  }

  .kv-header__toggle {
    display: flex;
    flex-direction: column;
  }

  .kv-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 3.625rem; /* approx header height */
    background: radial-gradient(circle at top, rgba(245, 166, 35, 0.08), transparent 65%),
                linear-gradient(to bottom, #050708, #0e1412);
    border-bottom: 1px solid rgba(208, 184, 120, 0.18);
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
  }

  .kv-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4);
    gap: var(--space-3);
  }

  .kv-header__nav-item--cta {
    width: 100%;
  }

  .kv-header__nav-link--cta {
    justify-content: center;
    width: 100%;
    text-align: center;
  }

  .kv-header--menu-open .kv-header__nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  body.kv-header--menu-lock {
    overflow: hidden;
  }
}