/* =====================================================================
   layout.css — grid, header, footer, nav, mobile menu
   Uses CSS logical properties throughout (no left/right).
   ===================================================================== */

/* ---------------------------------------------------------------------
   GRID
   --------------------------------------------------------------------- */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
}

/* ---------------------------------------------------------------------
   HEADER
   --------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  inset-inline: 0;
  z-index: 200;
  background: var(--rh-white);
  border-block-end: 1px solid var(--rh-line);
  transition: background var(--dur-fast) var(--ease-out), backdrop-filter var(--dur-fast) var(--ease-out), height var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.site-header.is-condensed {
  background: rgba(26, 67, 115, 0.96);
  backdrop-filter: blur(10px);
  border-block-end-color: transparent;
  box-shadow: 0 8px 24px rgba(15, 26, 42, 0.18);
}
.site-header.is-condensed .header-bar { min-height: 64px; }
.site-header.is-condensed .header-logo img { transform: scale(0.86); }
.site-header.is-condensed .nav-link,
.site-header.is-condensed .lang-toggle,
.site-header.is-condensed .header-logo-text { color: var(--rh-white); }

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  transition: min-height var(--dur-fast) var(--ease-out);
  gap: var(--sp-24);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-12);
  flex-shrink: 0;
}
.header-logo img { height: 40px; width: auto; transition: transform var(--dur-fast) var(--ease-out); transform-origin: center inset-inline-start; }
.header-logo-text {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--rh-navy);
  line-height: 1.2;
  transition: color var(--dur-fast) var(--ease-out);
}
.header-logo-text small { display: block; font-family: var(--font-sans); font-weight: 400; font-size: 0.7rem; color: var(--rh-ink-soft); }

.main-nav { display: none; }
@media (min-width: 1024px) {
  .main-nav {
    display: flex;
    align-items: center;
    gap: var(--sp-32);
  }
}

.nav-item { position: relative; }
.nav-link {
  font-size: var(--fs-small);
  font-weight: 500;
  padding: var(--sp-8) 0;
  color: var(--rh-ink);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav-link:hover, .nav-link[aria-current="page"] { color: var(--rh-blue); }
.site-header.is-condensed .nav-link:hover { color: var(--rh-sky); }

.nav-caret { width: 10px; height: 10px; transition: transform var(--dur-fast) var(--ease-out); }
.nav-item.is-open .nav-caret { transform: rotate(180deg); }

.dropdown {
  position: absolute;
  top: 100%;
  inset-inline-start: -16px;
  min-width: 280px;
  background: var(--rh-white);
  border: 1px solid var(--rh-line);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  padding: var(--sp-12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), visibility var(--dur-fast);
}
.nav-item.is-open .dropdown,
.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown a {
  display: block;
  padding: var(--sp-8) var(--sp-12);
  border-radius: 6px;
  font-size: var(--fs-small);
  color: var(--rh-ink-soft);
}
.dropdown a:hover { background: var(--rh-surface); color: var(--rh-blue); }
.dropdown .dropdown-heading {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--rh-ink-soft);
  padding: var(--sp-8) var(--sp-12) 4px;
}

.header-actions { display: flex; align-items: center; gap: var(--sp-16); }
.lang-toggle {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--rh-ink-soft);
  border: 1px solid var(--rh-line);
  border-radius: 4px;
  padding: 6px 10px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.lang-toggle:hover { border-color: var(--rh-blue); color: var(--rh-blue); }

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
}
.menu-toggle svg { width: 24px; height: 24px; }
@media (min-width: 1024px) {
  .menu-toggle { display: none; }
}

/* ---------------------------------------------------------------------
   MOBILE MENU (full-screen overlay)
   --------------------------------------------------------------------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: var(--rh-navy);
  color: var(--rh-white);
  padding: var(--sp-24);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease-out);
}
[dir="rtl"] .mobile-menu { transform: translateX(-100%); }
.mobile-menu.is-open { transform: translateX(0); }
@media (min-width: 1024px) { .mobile-menu { display: none; } }

.mobile-menu-top { display: flex; justify-content: flex-end; margin-block-end: var(--sp-32); }
.mobile-menu-close { width: 44px; height: 44px; color: var(--rh-white); }
.mobile-menu-close svg { width: 26px; height: 26px; }

.mobile-nav-list { display: flex; flex-direction: column; gap: var(--sp-8); }
.mobile-nav-item {
  border-block-end: 1px solid rgba(255,255,255,0.12);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s var(--ease-out), transform 0.4s var(--ease-out);
}
.mobile-menu.is-open .mobile-nav-item { opacity: 1; transform: translateY(0); }
.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-16) 4px;
  font-family: var(--font-serif);
  font-size: 1.2rem;
}
.mobile-submenu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease-out);
}
.mobile-nav-item.is-open .mobile-submenu { max-height: 600px; }
.mobile-submenu a {
  display: block;
  padding: var(--sp-8) var(--sp-16) var(--sp-8) var(--sp-24);
  font-size: var(--fs-small);
  color: var(--rh-mist);
}
.mobile-menu-cta { margin-block-start: var(--sp-32); display: flex; flex-direction: column; gap: var(--sp-12); }

/* ---------------------------------------------------------------------
   FOOTER
   --------------------------------------------------------------------- */
.site-footer {
  background: linear-gradient(165deg, var(--rh-navy) 0%, #142f52 100%);
  color: var(--rh-mist);
  padding-block: var(--sp-64) var(--sp-32);
  position: relative;
  overflow: hidden;
  border-block-start: 3px solid transparent;
  border-image: linear-gradient(to right, var(--pillar-human), var(--pillar-econ), var(--pillar-climate), var(--pillar-peace)) 1;
}
.footer-grid {
  display: grid;
  gap: var(--sp-48);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1.4fr repeat(3, 1fr); }
}
.footer-brand { max-width: 34ch; }
.footer-brand-name { font-family: var(--font-serif); color: var(--rh-white); font-size: 1.2rem; margin-block-end: 4px; }
.footer-brand-name-ar { font-family: var(--font-arabic); color: var(--rh-mist); font-size: 1.05rem; margin-block-end: var(--sp-12); }
.footer-tagline { font-size: var(--fs-small); color: var(--rh-mist); line-height: 1.7; }
.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--rh-sky);
  margin-block-end: var(--sp-16);
}
.footer-links { display: flex; flex-direction: column; gap: var(--sp-12); }
.footer-links a { font-size: var(--fs-small); color: var(--rh-mist); }
.footer-links a:hover { color: var(--rh-white); }
.footer-bottom {
  margin-block-start: var(--sp-64);
  padding-block-start: var(--sp-24);
  border-block-start: 1px solid rgba(255,255,255,0.14);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-16);
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--rh-mist);
}
.footer-bottom a { color: var(--rh-mist); }
.footer-bottom a:hover { color: var(--rh-white); }
.footer-meridian {
  position: absolute;
  inset-inline-end: -10%;
  top: -20%;
  width: 60%;
  height: 140%;
  opacity: 0.07;
  pointer-events: none;
}

/* ---------------------------------------------------------------------
   ARC DIVIDERS
   --------------------------------------------------------------------- */
.arc-divider {
  display: block;
  width: 100%;
  height: clamp(28px, 4vh, 64px);
  margin-block-end: -1px;
}
.arc-divider path { transition: none; }

/* ---------------------------------------------------------------------
   MAIN LANDMARK
   --------------------------------------------------------------------- */
main { display: block; }