/* Layout CSS: Header, Navigation, Footer */

/* Top bar for contact details */
.top-bar {
  background-color: var(--primary-dark);
  color: var(--text-light);
  font-size: var(--font-size-xs);
  max-height: var(--top-bar-height);
  overflow: hidden;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  flex-shrink: 0;
  transition: max-height var(--transition-normal), opacity var(--transition-normal), border-color var(--transition-normal), padding var(--transition-normal);
  opacity: 1;
  padding: var(--spacing-3) 0;
}

.top-bar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-4);
}

.top-bar-content > div {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  flex-wrap: wrap;
}

.top-bar-content span {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
}

.top-bar-content i {
  color: var(--accent-color);
  font-size: 11px;
}

.top-bar-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.top-bar-links a {
  color: var(--text-light);
  transition: color var(--transition-fast);
}

.top-bar-links a:hover {
  color: var(--accent-color);
}

/* Main Navigation Header */
.main-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--white);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.main-header.scrolled {
  box-shadow: 0 4px 24px rgba(11, 26, 48, 0.12);
  background-color: rgba(11, 26, 48, 0.97);
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

/* Backdrop blur lives on a pseudo-element so it never leaks
   filter context into fixed children (mobile nav drawer) */
.main-header.scrolled::after {
  content: '';
  position: absolute;
  inset: 0;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: -1;
  pointer-events: none;
}

.main-header.scrolled .top-bar {
  max-height: 0;
  opacity: 0;
  padding: 0;
  border-bottom-color: transparent;
}

.main-header.scrolled .nav-link {
  color: var(--text-on-dark);
}

.main-header.scrolled .logo-text {
  color: var(--white);
}

.main-header.scrolled .logo-tagline {
  color: var(--text-light);
}

.main-header.scrolled .nav-link:hover {
  color: var(--accent-color);
}

/* Nav wrapper */
.header-nav-wrapper {
  height: var(--nav-height);
  display: flex;
  align-items: center;
}

.header-container {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-6);
}

/* Brand Logo */
.logo {
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-family-headings);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary-color);
  letter-spacing: -0.3px;
  line-height: 1.1;
  transition: color var(--transition-fast);
}

.logo-tagline {
  font-size: 9px;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.6px;
  font-weight: 600;
  transition: color var(--transition-fast);
}

/* Navigation Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  height: 100%;
  flex: 1;
  justify-content: center;
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
}

.nav-link {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-color);
  padding: var(--spacing-2) 0;
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 16px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-item.active .nav-link::after {
  width: 100%;
}

.nav-link:hover {
  color: var(--accent-color);
}

/* Dropdown Menu */
.dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  width: 270px;
  background-color: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--transition-normal);
  padding: var(--spacing-2) 0;
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.dropdown-link {
  display: block;
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-color);
  transition: all var(--transition-fast);
}

.dropdown-link:hover {
  background-color: var(--surface-color);
  color: var(--accent-color);
  padding-left: calc(var(--spacing-6) + 6px);
}

/* Header CTA Button */
.header-cta {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

/* Hamburger / Mobile Toggle */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1100;
  padding: 0;
  flex-shrink: 0;
}

.hamburger span {
  width: 100%;
  height: 2px;
  background-color: var(--text-color);
  transition: all var(--transition-normal);
  display: block;
  border-radius: 2px;
}

.main-header.scrolled .hamburger span {
  background-color: var(--white);
}

.hamburger.active span {
  background-color: var(--white) !important;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Global Footer */
.main-footer {
  background-color: var(--primary-dark);
  color: var(--white);
  padding-top: var(--spacing-16);
  border-top: 4px solid var(--accent-color);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-12);
  margin-bottom: var(--spacing-16);
}

.footer-col h4 {
  color: var(--white);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-6);
  position: relative;
  padding-bottom: var(--spacing-3);
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 36px;
  height: 2px;
  background-color: var(--accent-color);
}

.footer-desc {
  color: var(--text-light);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-4);
  margin-bottom: var(--spacing-6);
  line-height: 1.7;
}

.footer-socials {
  display: flex;
  gap: var(--spacing-3);
}

.footer-social-link {
  width: 38px;
  height: 38px;
  border-radius: var(--border-radius-full);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all var(--transition-fast);
  color: var(--text-light);
  text-decoration: none;
}

.footer-social-link:hover {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  color: var(--primary-dark);
  transform: translateY(-3px);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-3);
}

.footer-links a {
  color: var(--text-light);
  font-size: var(--font-size-sm);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  transition: all var(--transition-fast);
}

.footer-links a i {
  font-size: 10px;
  color: var(--accent-color);
  transition: transform var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-color);
  padding-left: 4px;
}

.footer-links a:hover i {
  transform: translateX(2px);
}

.footer-contact-info {
  list-style: none;
}

.footer-contact-info li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  color: var(--text-light);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-5);
  line-height: 1.6;
}

.footer-contact-info i {
  color: var(--accent-color);
  margin-top: 3px;
  flex-shrink: 0;
  width: 14px;
  text-align: center;
}

/* Bottom Bar */
.footer-bottom {
  background-color: #020811;
  padding: var(--spacing-5) 0;
  font-size: var(--font-size-xs);
  color: var(--text-light);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-4);
}

.footer-bottom-links {
  display: flex;
  gap: var(--spacing-6);
}

.footer-bottom-links a {
  color: var(--text-light);
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--accent-color);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1100px) {
  .nav-menu {
    gap: var(--spacing-3);
  }
}

@media (max-width: 991px) {
  .hamburger {
    display: flex;
  }

  .header-cta {
    display: none;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    height: 100dvh;
    background-color: var(--primary-color);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px var(--spacing-8) var(--spacing-8) var(--spacing-8);
    gap: 0;
    box-shadow: -8px 0 40px rgba(0, 0, 0, 0.4);
    transition: right var(--transition-slow);
    z-index: 1050;
    overflow-y: auto;
    justify-content: flex-start;
    isolation: isolate;
  }

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

  .nav-item {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    height: auto;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-item:last-child {
    border-bottom: none;
  }

  .nav-link {
    width: 100%;
    color: var(--text-on-dark);
    font-size: var(--font-size-base);
    padding: var(--spacing-4) 0;
    justify-content: space-between;
    letter-spacing: 0;
  }

  .nav-link::after {
    display: none;
  }

  .nav-link:hover {
    color: var(--accent-color);
  }

  .dropdown {
    position: static;
    transform: none;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.04);
    border: none;
    border-radius: 0;
    box-shadow: none;
    margin-top: 0;
    display: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    padding: 0;
  }

  .nav-item.active-dropdown .dropdown {
    display: block;
  }

  .dropdown-link {
    color: var(--text-light);
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  }

  .dropdown-link:hover {
    color: var(--accent-color);
    background-color: transparent;
    padding-left: calc(var(--spacing-4) + 6px);
  }

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

  .top-bar-content > div:first-child span:last-child {
    display: none;
  }
}

@media (max-width: 575px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
  }

  .top-bar {
    display: none;
  }

  .footer-bottom-content {
    flex-direction: column;
    text-align: center;
  }
}