/* ========================================
   HEADER – Airy / Flowing
   ======================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;

  /* Soft glass background */
  background: linear-gradient(
    120deg,
    rgba(247, 241, 232, 0.88),
    rgba(247, 241, 232, 0.82)
  );
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);

  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.04);

  transition:
    background var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base),
    border-color var(--transition-base);

  animation: headerFloatIn 0.7s ease-out 0.1s both;
}

/* Slightly denser on scroll but still light */
.header.scrolled {
  background: rgba(247, 241, 232, 0.96);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--shadow-md, 0 18px 45px rgba(0, 0, 0, 0.06));
  border-bottom-color: rgba(255, 255, 255, 0.85);
}

/* Optional: hide on scroll-down, show on scroll-up via JS */
.header--hidden {
  transform: translateY(-100%);
}

/* Layout container */
.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);

  max-width: var(--layout-max-width, 1120px);
  margin-inline: auto;
  padding: 0.65rem var(--spacing-sm);
}

/* =========================
   Brand
   ========================= */

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;

  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  box-shadow: 0 14px 800px rgba(0, 0, 0, 0.04);

  transform-origin: left center;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    background var(--transition-base);
}

.brand:hover {
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 18px 80px rgba(0, 0, 0, 0.06);
}

.brand__logo {
  height: 72px;
  width: auto;
  transition: transform var(--transition-base), filter var(--transition-base);
}

.brand:hover .brand__logo {
  transform: scale(1.02);
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.12));
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
}

/* Small prefix, airy uppercase */
.brand__prefix {
  font-size: 0.78rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  line-height: 1;
}

/* Main name with subtle gradient to match typography */
.brand__main {
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
  line-height: 1;

  background: linear-gradient(135deg, #566231 0%, #F2C969 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* =========================
   Navigation
   ========================= */

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;

  font-size: 0.95rem;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.14em;
  text-transform: uppercase;

  color: var(--color-text-secondary);
  padding: 0.35rem 0;
  white-space: nowrap;

  transition:
    color var(--transition-base),
    transform var(--transition-base),
    opacity var(--transition-base);
}

/* Underline that “flows” in */
.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  border-radius: 999px;

  background: linear-gradient(90deg, #566231, #F2C969);
  transform-origin: center;
  transform: scaleX(0);
  opacity: 0;

  transition:
    transform var(--transition-base),
    opacity var(--transition-base);
}

.nav__link:hover {
  color: var(--color-primary-olive);
  transform: translateY(-1px);
}

.nav__link:hover::after,
.nav__link--active::after {
  transform: scaleX(1);
  opacity: 1;
}

.nav__link--active {
  color: var(--color-primary-olive);
}

.nav__link:focus-visible {
  outline: 2px solid var(--color-brand-yellow);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* =========================
   Header Actions (Lang + CTA)
   ========================= */

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Language switcher */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.15rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.4);
}

.lang-btn {
  font-size: 0.8rem;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.12em;
  text-transform: uppercase;

  color: var(--color-text-secondary);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;

  transition: all var(--transition-base);
}

.lang-btn.active {
  color: var(--color-primary-olive);
  background: rgba(242, 201, 105, 0.18);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.05);
}

.lang-btn:hover:not(.active) {
  color: var(--color-primary-olive);
  background: rgba(242, 201, 105, 0.1);
}

.lang-btn:focus-visible {
  outline: 2px solid var(--color-brand-yellow);
  outline-offset: 2px;
}

/* =========================
   Hamburger (mobile)
   ========================= */

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.45rem;
  border-radius: 999px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);

  transition:
    background var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
}

.hamburger__line {
  width: 22px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-primary-olive);
  transition: all var(--transition-base);
}

.hamburger:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
}

/* Animate into “X” */
.hamburger.active .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active .hamburger__line:nth-child(2) {
  opacity: 1;
}

.hamburger.active .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* =========================
   Animations
   ========================= */

@keyframes headerFloatIn {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =========================
   Responsive
   ========================= */

@media (max-width: 900px) {
  .header__container {
    gap: var(--spacing-md);
    padding-inline: var(--spacing-xs);
  }

  .brand__logo {
    height: 60px;
  }

  .nav__list {
    display: none; /* shown via JS when hamburger active */
  }

  .hamburger {
    display: flex;
  }
}

@media (max-width: 640px) {
  .brand__logo {
    height: 46px;
  }

  .brand__text {
    gap: 0;
  }

  .brand__prefix {
    font-size: 0.7rem;
  }

  .brand__main {
    font-size: 1rem;
  }
}