/* ==========================================================================
   FORMA 40+ — EDITORIAL LAYOUT & NAVIGATION
   Architecture, Masthead, Fullscreen Mobile Menu, Editorial Footer
   ========================================================================== */

.site-container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
  box-sizing: border-box;
}

.site-container--narrow {
  width: 100%;
  max-width: var(--container-narrow);
  box-sizing: border-box;
}

.site-container--flush {
  width: 100%;
  max-width: 100%;
  padding-left: 0;
  padding-right: 0;
  box-sizing: border-box;
}

/* --------------------------------------------------------------------------
   EDITORIAL TOP BAR (METADATA & DATE)
   -------------------------------------------------------------------------- */
.editorial-topbar {
  border-bottom: 1px solid var(--border-light);
  padding: 0.4rem var(--container-pad);
  font-family: var(--font-ui);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-canvas);
  width: 100%;
  box-sizing: border-box;
}

.editorial-topbar__meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-width: 0;
}

.editorial-topbar__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
}

.editorial-topbar__tag::before {
  content: '';
  width: 5px;
  height: 5px;
  background-color: var(--accent-orange);
  display: inline-block;
  flex-shrink: 0;
}

.editorial-topbar__actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-shrink: 0;
}

.search-trigger-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border-light);
  background-color: var(--bg-surface);
  font-family: var(--font-ui);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-main);
  transition: all var(--transition-snappy);
  white-space: nowrap;
}

.search-trigger-btn:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.search-trigger-btn kbd {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  padding: 0.05rem 0.35rem;
  font-size: 0.65rem;
  font-family: monospace;
}

/* --------------------------------------------------------------------------
   MASTHEAD & BRANDING
   -------------------------------------------------------------------------- */
.site-masthead {
  padding: 1.25rem var(--container-pad) 1.1rem;
  border-bottom: 1px solid var(--border-strong);
  background-color: var(--bg-canvas);
  position: sticky;
  top: 0;
  z-index: 90;
  width: 100%;
  box-sizing: border-box;
}

.site-masthead__inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  box-sizing: border-box;
}

/* Editorial Brand Logo */
.brand-logo {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  text-decoration: none;
  color: var(--text-main);
  line-height: 1;
  flex-shrink: 1;
  min-width: 0;
}

.brand-logo__wordmark {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 2.2rem + 1.2vw, 3.8rem);
  letter-spacing: 0.05em;
  font-weight: 400;
  color: var(--text-main);
  white-space: nowrap;
}

.brand-logo__tag {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 1.4rem + 0.8vw, 2.4rem);
  color: var(--accent-blue);
  letter-spacing: 0.02em;
  position: relative;
  top: -0.1em;
  white-space: nowrap;
}

.brand-logo__edition {
  font-family: var(--font-ui);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-left: 0.6rem;
  border-left: 1px solid var(--border-strong);
  padding-left: 0.6rem;
  line-height: 1.3;
  white-space: nowrap;
}

/* Desktop Main Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}

.main-nav__list {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}

.main-nav__link {
  font-family: var(--font-ui);
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-main);
  position: relative;
  padding: 0.4rem 0;
}

.main-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--accent-blue);
  transition: width var(--transition-snappy);
}

.main-nav__link:hover::after,
.main-nav__link.is-active::after {
  width: 100%;
}

.main-nav__link.is-active {
  color: var(--accent-blue);
}

.nav-badge-40 {
  display: inline-flex;
  align-items: center;
  background-color: var(--accent-blue);
  color: #FFFFFF !important;
  padding: 0.2rem 0.5rem;
  font-weight: 700;
}

.nav-badge-40::after {
  display: none !important;
}

/* Mobile Menu Toggle Button */
.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  flex-shrink: 0;
  margin-left: auto;
  cursor: pointer;
  box-sizing: border-box;
}

.mobile-nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-main);
  transition: transform var(--transition-snappy), opacity var(--transition-snappy);
}

.mobile-nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   FULLSCREEN MOBILE MENU
   -------------------------------------------------------------------------- */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--bg-dark);
  color: var(--text-inverse);
  z-index: 89;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(5rem, 10vh, 6.5rem) var(--container-pad) 2.5rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-12px);
  transition: opacity 240ms ease, transform 240ms ease;
  overflow-y: auto;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  box-sizing: border-box;
}

.mobile-menu-overlay.is-active {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.mobile-menu-overlay__nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-menu-overlay__link {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 1.8rem + 4vw, 3.2rem);
  text-transform: uppercase;
  color: var(--text-inverse);
  line-height: 1.05;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-dark);
  padding-bottom: 0.6rem;
}

.mobile-menu-overlay__link span {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--accent-blue-bright);
}

.mobile-menu-overlay__footer {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-dark);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-menu-overlay__sublinks {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-inverse-muted);
}

/* --------------------------------------------------------------------------
   FOOTER (MONUMENTAL ARCHITECTURAL MAGAZINE)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--bg-dark);
  color: var(--text-inverse);
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-xl);
  margin-top: auto;
  border-top: 2px solid var(--border-dark-strong);
}

.site-footer__main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: var(--space-xl);
}

.footer-brand__logo {
  font-family: var(--font-display);
  font-size: clamp(3rem, 2.5rem + 3vw, 5rem);
  line-height: 0.9;
  letter-spacing: 0.04em;
  color: var(--text-inverse);
  margin-bottom: 1rem;
}

.footer-brand__logo span {
  color: var(--accent-blue-bright);
}

.footer-brand__statement {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--accent-orange);
  margin-bottom: 1rem;
}

.footer-brand__desc {
  color: var(--text-inverse-muted);
  font-size: 0.95rem;
  max-width: 440px;
  line-height: 1.6;
}

.footer-col__title {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-inverse-muted);
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-dark);
  padding-bottom: 0.5rem;
}

.footer-col__list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-col__link {
  font-size: 0.88rem;
  color: var(--text-inverse);
  transition: color var(--transition-snappy);
}

.footer-col__link:hover {
  color: var(--accent-blue-bright);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-inverse-muted);
}

.footer-bottom__legal {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom__legal a:hover {
  color: var(--text-inverse);
}

/* --------------------------------------------------------------------------
   RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .main-nav {
    display: none;
  }
  .mobile-nav-toggle {
    display: flex;
  }
  .site-footer__main {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .editorial-topbar__meta span:not(.editorial-topbar__tag) {
    display: none;
  }
  .site-masthead {
    padding: 0.85rem var(--container-pad);
  }
}

@media (max-width: 640px) {
  .site-footer__main {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }
  .footer-bottom__legal {
    flex-wrap: wrap;
    gap: 1rem;
  }
}

@media (max-width: 520px) {
  .brand-logo__edition {
    display: none;
  }
  .brand-logo__wordmark {
    font-size: 2.1rem;
  }
  .brand-logo__tag {
    font-size: 1.45rem;
  }
}

@media (max-width: 480px) {
  .editorial-topbar {
    padding: 0.35rem var(--container-pad);
  }
  .editorial-topbar__tag {
    font-size: 0.62rem;
  }
  .editorial-topbar__actions .search-trigger-btn kbd {
    display: none;
  }
  .search-trigger-btn {
    padding: 0.2rem 0.5rem;
    font-size: 0.62rem;
  }
  .mobile-menu-overlay__link {
    font-size: 1.8rem;
  }
}

@media (max-width: 360px) {
  .brand-logo__wordmark {
    font-size: 1.85rem;
  }
  .brand-logo__tag {
    font-size: 1.3rem;
  }
}