/* Header styles for Orange Circle Hub */

.och-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: linear-gradient(to bottom, rgba(5, 5, 16, 0.97), rgba(5, 5, 16, 0.92));
  border-bottom: 1px solid var(--color-border-strong);
  backdrop-filter: blur(16px);
}

.och-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

/* Brand */
.och-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.och-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
}

.och-header__logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: conic-gradient(from 180deg, var(--color-primary), var(--color-accent-pink), var(--color-accent-blue), var(--color-primary));
  box-shadow: var(--shadow-neon-orange);
  position: relative;
}

.och-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 50%;
  border: 2px solid rgba(0, 0, 0, 0.85);
  background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.45), transparent 55%),
              radial-gradient(circle at 65% 75%, rgba(0, 0, 0, 0.9), #050510);
}

.och-header__logo-text {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-shadow: 0 0 12px rgba(255, 122, 26, 0.7);
  white-space: nowrap;
}

/* Navigation */
.och-header__nav {
  display: flex;
  align-items: center;
}

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

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

.och-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.och-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.25rem;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-blue));
  transform-origin: center;
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

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

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

.och-header__nav-item--cta .och-header__nav-link--cta {
  padding: 0.4rem 1.1rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-pink));
  color: #050510;
  box-shadow: var(--shadow-neon-orange);
}

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

.och-header__nav-item--cta .och-header__nav-link--cta:hover,
.och-header__nav-item--cta .och-header__nav-link--cta:focus-visible {
  color: #050510;
  transform: translateY(-1px);
}

/* Mobile toggle */
.och-header__toggle {
  display: none;
  align-items: center;
  gap: var(--space-4);
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong);
  background: rgba(10, 10, 40, 0.95);
  color: var(--color-text);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  cursor: pointer;
}

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

.och-header__toggle-icon {
  position: relative;
  width: 18px;
  height: 12px;
}

.och-header__toggle-icon::before,
.och-header__toggle-icon::after,
.och-header__toggle-icon span {
  content: "";
  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);
}

.och-header__toggle-icon::before {
  top: 0;
}

.och-header__toggle-icon::after {
  bottom: 0;
}

.och-header__toggle-icon span {
  top: 50%;
  transform: translateY(-50%);
}

/* Open state */
.och-header__toggle[aria-expanded="true"] .och-header__toggle-icon::before {
  top: 5px;
  transform: rotate(45deg);
}

.och-header__toggle[aria-expanded="true"] .och-header__toggle-icon::after {
  bottom: 5px;
  transform: rotate(-45deg);
}

.och-header__toggle[aria-expanded="true"] .och-header__toggle-icon span {
  opacity: 0;
}

.och-header__toggle-label {
  display: inline-block;
}

/* Responsive behaviour */
@media (max-width: 768px) {
  .och-header__toggle {
    display: inline-flex;
  }

  .och-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at top, rgba(255, 255, 255, 0.06), transparent 55%),
                linear-gradient(180deg, #050516, #050510);
    border-bottom: 1px solid var(--color-border-strong);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  }

  .och-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-12) var(--space-8) var(--space-12);
    gap: var(--space-6);
  }

  .och-header__nav-link {
    padding: 0.35rem 0.15rem;
    width: 100%;
  }

  .och-header__nav--open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: scaleY(1);
  }

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

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

@media (max-width: 480px) {
  .och-header__logo-text {
    font-size: 0.75rem;
  }
}