/* ============================================================
   Header / Navigation
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
  background: rgba(13, 63, 94, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header--transparent {
  background: rgba(13, 63, 94, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header--scrolled {
  background: rgba(13, 63, 94, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 2px 24px rgba(13, 63, 94, 0.25);
}

.header__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* ── Logo ─────────────────────────────────────────────────── */
.header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.header__logo img {
  height: 44px;
  width: auto;
  transition: opacity var(--transition-base);
}

.header__logo:hover img {
  opacity: 0.85;
}

/* ── Nav ──────────────────────────────────────────────────── */
.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
  justify-content: center;
}

.nav-link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: rgba(255,255,255,0.8);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,0.12);
}

.nav-link.active {
  color: #fff;
  font-weight: var(--font-weight-semi);
  background: rgba(255,255,255,0.15);
}

/* Transparent header keeps same white style */
.header--transparent .nav-link {
  color: rgba(255,255,255,0.8);
}

.header--transparent .nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,0.12);
}

/* ── Header Actions ───────────────────────────────────────── */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* ── Language Switcher ────────────────────────────────────── */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-full);
  padding: 3px;
  transition: all var(--transition-base);
}

.header--transparent .lang-switcher {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.25);
}

.lang-btn {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semi);
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.7);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
  text-transform: uppercase;
}

.lang-btn:hover {
  color: #fff;
}

.lang-btn.active {
  background: rgba(255,255,255,0.2);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.header--transparent .lang-btn {
  color: rgba(255,255,255,0.7);
}

.header--transparent .lang-btn.active {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

/* ── CTA Button in Header ─────────────────────────────────── */
.header__cta {
  display: none;
}

/* btn--white sizing correction for sm in header */
.header__cta.btn--white {
  color: var(--color-primary-deeper);
  font-weight: var(--font-weight-semi);
}

@media (min-width: 900px) {
  .header__cta {
    display: inline-flex;
  }
}

/* ── Hamburger ────────────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  background: none;
  border: none;
  gap: 5px;
  transition: background var(--transition-fast);
}

.hamburger:hover {
  background: var(--color-surface);
}

.header--transparent .hamburger:hover {
  background: rgba(255,255,255,0.1);
}

.hamburger__line {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.header--transparent .hamburger__line {
  background: #fff;
}

.hamburger.open .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open .hamburger__line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.open .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile Menu ──────────────────────────────────────────── */
.mobile-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-sticky);
  padding: var(--space-6);
  transform: translateY(-110%);
  opacity: 0;
  transition: all var(--transition-slow);
  pointer-events: none;
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-6);
}

.mobile-nav-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: var(--color-surface);
  color: var(--color-primary-dark);
}

.mobile-menu__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.85);
  padding-top: var(--space-20);
  padding-bottom: var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__brand img {
  height: 40px;
  width: auto;
  object-fit: contain;
  margin-bottom: var(--space-5);
}

.footer__brand p {
  color: rgba(255,255,255,0.55);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  max-width: 280px;
}

.footer__heading {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semi);
  color: var(--color-white);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.55);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer__link:hover {
  color: var(--color-primary);
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--space-4);
}

.footer__contact-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer__contact-item a {
  color: rgba(255,255,255,0.55);
  transition: color var(--transition-fast);
}

.footer__contact-item a:hover {
  color: var(--color-primary);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__copyright {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.35);
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-6);
}

.footer__bottom-link {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.35);
  transition: color var(--transition-fast);
}

.footer__bottom-link:hover {
  color: rgba(255,255,255,0.7);
}

@media (max-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .header__nav {
    display: none;
  }

  .header__inner {
    padding-inline: var(--space-4);
  }

  .footer {
    padding-top: var(--space-12);
    padding-bottom: var(--space-6);
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer__brand p {
    max-width: 100%;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .footer__bottom-links {
    gap: var(--space-4);
  }
}

@media (max-width: 480px) {
  .header__logo img {
    height: 36px;
  }

  .header__inner {
    gap: var(--space-3);
  }

  .footer {
    padding-top: var(--space-10);
  }

  .footer__grid {
    gap: var(--space-6);
  }

  .footer__heading {
    margin-bottom: var(--space-3);
  }

  .mobile-menu {
    padding: var(--space-4);
  }
}