/* ============================================================
   CROPGENE — HEADER & NAVIGATION
   Glassmorphism, High-Contrast Official Brand Integration
   ============================================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: var(--header-height);
  transition: all var(--duration-normal) var(--ease-default);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.header--scrolled {
  height: var(--header-height-scrolled);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  border-bottom-color: rgba(203, 213, 225, 0.9);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* ---- Logo ---- */
.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  text-decoration: none;
  transition: transform var(--duration-fast) var(--ease-default);
}

.header__logo:hover {
  transform: translateY(-1px);
}

.header__logo-img {
  height: 50px;
  width: auto;
  object-fit: contain;
  display: block;
  transition: height var(--duration-normal) var(--ease-default);
}

.header--scrolled .header__logo-img {
  height: 42px;
}

/* Text fallback styling if needed */
.header__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.header__logo-brand {
  font-family: var(--font-body);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: var(--tracking-tight);
}

.header__logo-brand .crop {
  color: var(--color-secondary); /* Green */
}

.header__logo-brand .gene {
  color: var(--color-primary); /* Magenta */
}

.header__logo-tagline {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-brand-navy);
  margin-top: 3px;
}

/* ---- Desktop Nav ---- */
.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.header__nav-link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-gray-700);
  border-radius: var(--radius-full);
  transition: all var(--duration-normal) var(--ease-default);
  position: relative;
}

.header__nav-link:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-subtle);
}

.header__nav-link--active {
  color: var(--color-primary);
  background-color: var(--color-primary-subtle);
  font-weight: var(--weight-bold);
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 16px;
  height: 2.5px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: transform var(--duration-normal) var(--ease-spring);
}

.header__nav-link--active::after,
.header__nav-link:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.header__nav-cta {
  margin-left: var(--space-4);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  box-shadow: 0 4px 14px var(--color-primary-glow);
  color: var(--color-white);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
}

.header__nav-cta:hover {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--color-primary-glow);
}

/* ---- Mobile Hamburger ---- */
.header__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  cursor: pointer;
  z-index: calc(var(--z-overlay) + 10);
  padding: 6px;
  border-radius: var(--radius-md);
  background-color: var(--color-gray-100);
}

.header__hamburger span {
  display: block;
  width: 100%;
  height: 2.5px;
  background-color: var(--color-gray-800);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-default);
  transform-origin: center;
}

.header__hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
  background-color: var(--color-primary);
}

.header__hamburger.active span:nth-child(2) {
  opacity: 0;
}

.header__hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
  background-color: var(--color-primary);
}

/* ---- Mobile Navigation Overlay ---- */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 380px;
  height: 100vh;
  height: 100dvh;
  background-color: var(--color-white);
  z-index: var(--z-overlay);
  padding: calc(var(--header-height) + var(--space-6)) var(--space-6) var(--space-8);
  transition: right var(--duration-slow) var(--ease-default);
  overflow-y: auto;
  box-shadow: var(--shadow-2xl);
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav__backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(17, 24, 39, 0.6);
  backdrop-filter: blur(4px);
  z-index: calc(var(--z-overlay) - 1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-default);
}

.mobile-nav__backdrop.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-gray-800);
  border-bottom: 1px solid var(--color-gray-100);
  transition: all var(--duration-fast) var(--ease-default);
}

.mobile-nav__link svg {
  width: 20px;
  height: 20px;
  min-width: 20px;
  flex-shrink: 0;
  stroke: currentColor;
  opacity: 0.6;
  transition: transform var(--duration-fast) var(--ease-default), opacity var(--duration-fast) var(--ease-default);
}

.mobile-nav__link:hover,
.mobile-nav__link--active {
  color: var(--color-primary);
  padding-left: var(--space-4);
}

.mobile-nav__link:hover svg,
.mobile-nav__link--active svg {
  opacity: 1;
  stroke: var(--color-primary);
  transform: translateX(4px);
}

.mobile-nav__cta {
  margin-top: var(--space-8);
}

.mobile-nav__contact {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-gray-200);
}

.mobile-nav__contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

.mobile-nav__contact-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-primary);
}

@media (max-width: 1024px) {
  .header__nav {
    display: none;
  }

  .header__hamburger {
    display: flex;
  }
}