/**
 * Edge Opera Digital — Layout Styles
 * Topbar, Navigation Header, Containers, Grids, and Footer
 */

/* Top Utility Bar */
.topbar {
  background-color: var(--color-brand-primary);
  color: var(--color-text-secondary-dark);
  font-size: var(--font-size-xs);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color-dark);
}

.topbar-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.topbar-info {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.topbar-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-secondary-dark);
}

.topbar-item a {
  color: var(--color-text-secondary-dark);
  text-decoration: none;
}

.topbar-item a:hover {
  color: #ffffff;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Language Selector */
.lang-selector {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  position: relative;
}

.lang-selector-select {
  background: var(--color-brand-elevated);
  color: #ffffff;
  border: 1px solid var(--border-color-dark);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.6rem;
  font-size: var(--font-size-xs);
  cursor: pointer;
  appearance: auto;
  outline: none;
  transition: border-color var(--transition-fast);
}

.lang-selector-select:hover,
.lang-selector-select:focus {
  border-color: var(--color-accent-blue);
}

/* Header & Main Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(11, 17, 32, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color-dark);
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.site-header.scrolled {
  background-color: rgba(11, 17, 32, 0.98);
  box-shadow: var(--shadow-lg);
}

.header-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0.875rem var(--container-padding);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: #ffffff;
}

.site-logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.site-logo-text {
  display: flex;
  flex-direction: column;
}

.site-logo-name {
  font-size: 1.15rem;
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -0.02em;
  color: #ffffff;
  line-height: 1.1;
}

.site-logo-name span {
  color: var(--color-accent-blue-light);
}

.site-logo-tagline {
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary-dark);
  font-weight: var(--font-weight-medium);
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--color-text-secondary-dark);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-accent-blue-light);
  border-radius: var(--radius-full);
}

/* Header CTAs */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Mobile Nav Toggle */
.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color-dark);
  border-radius: var(--radius-md);
  color: #ffffff;
  padding: var(--space-2);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

/* Mobile Drawer Overlay */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 360px;
  height: 100vh;
  background: var(--color-brand-primary);
  border-inline-start: 1px solid var(--border-color-dark);
  z-index: var(--z-drawer);
  padding: var(--space-6) var(--space-6);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
  transition: right var(--transition-normal);
  overflow-y: auto;
}

.mobile-drawer.open {
  right: 0;
}

.mobile-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: calc(var(--z-drawer) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-drawer-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-color-dark);
}

.drawer-close {
  background: transparent;
  border: none;
  color: var(--color-text-secondary-dark);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-2);
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.mobile-nav-link {
  color: var(--color-text-primary-dark);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  display: block;
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--color-accent-blue-light);
}

/* Layout Containers & Sections */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-16) 0;
}

.section-hero {
  background-color: var(--color-brand-primary);
  color: var(--color-text-primary-dark);
  padding: var(--space-20) 0 var(--space-16);
  position: relative;
  overflow: hidden;
}

.section-dark {
  background-color: var(--color-brand-secondary);
  color: var(--color-text-primary-dark);
}

.section-subtle {
  background-color: var(--color-canvas-light);
}

.section-white {
  background-color: #ffffff;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-12);
}

.section-header.text-start {
  text-align: start;
  margin-inline-start: 0;
}

.section-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-blue-light);
  background: var(--color-accent-blue-subtle);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary-light);
  line-height: var(--line-height-relaxed);
}

.section-dark .section-subtitle,
.section-hero .section-subtitle {
  color: var(--color-text-secondary-dark);
}

/* Grids */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

/* Footer */
.site-footer {
  background-color: var(--color-brand-primary);
  color: var(--color-text-secondary-dark);
  padding-top: var(--space-16);
  border-top: 1px solid var(--border-color-dark);
  margin-top: auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1fr;
  gap: var(--space-10);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--border-color-dark);
}

.footer-brand p {
  margin-top: var(--space-4);
  color: var(--color-text-secondary-dark);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  max-width: 360px;
}

.footer-contact-info {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-heading {
  color: #ffffff;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}

.footer-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
}

.footer-link {
  color: var(--color-text-secondary-dark);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: #ffffff;
  padding-inline-start: var(--space-1);
}

.footer-bottom {
  padding: var(--space-6) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted-dark);
}

.footer-legal-links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.footer-legal-links a {
  color: var(--color-text-muted-dark);
  transition: color var(--transition-fast);
}

.footer-legal-links a:hover {
  color: #ffffff;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
  
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu,
  .header-cta-desktop {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

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

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

  .footer-legal-links {
    justify-content: center;
  }

  .section {
    padding: var(--space-12) 0;
  }

  .section-hero {
    padding: var(--space-12) 0 var(--space-10);
  }
}

@media (max-width: 480px) {
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .topbar-container {
    flex-direction: column;
    align-items: flex-start;
  }
}