/* =============================================
   HEADER / NAVIGATION COMPONENT
   ============================================= */

.site-header {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 92%;
  max-width: 1200px;
  z-index: 1000;
  padding: 0 32px;
  border-radius: 46px;
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(7, 20, 49, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-lg);
}

.site-header.header-hidden {
  transform: translate(-50%, calc(-100% - 30px));
  pointer-events: none;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo .logo {
  width: 42px;
  height: 42px;
  background: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  overflow: hidden;
}

.nav-logo .logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nav-logo .logo-text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--white);
  line-height: 1.1;
}

.nav-logo .logo-text span {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 8px);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 110px;
  left: 50%;
  transform: translateX(-50%);
  width: 92%;
  background: rgba(7, 20, 49, 0.98);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 20px;
  z-index: 999;
  flex-direction: column;
  gap: 8px;
  max-width: 1200px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
  padding: 12px 16px;
  border-radius: 8px;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--white);
  background: rgba(255, 159, 41, 0.15);
  color: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .nav-logo .logo-text {
    font-size: 0.95rem;
  }

  .nav-cta {
    display: none;
  }

  .mobile-menu {
    width: calc(100% - 48px);
  }
}

@media (max-width: 640px) {
  .site-header {
    top: 12px;
    width: 96%;
    padding: 0 16px;
  }

  .nav-inner {
    height: 70px;
  }

  .nav-logo .logo {
    width: 36px;
    height: 36px;
  }

  .nav-logo .logo-text {
    font-size: 0.95rem;
  }

  .mobile-menu {
    top: 100px;
  }
}