/* =====================================================================
   Responsive — mobile & tablet (DCX-style nav + layout)
   Breakpoints: tablet ≤1024px, mobile ≤768px
   ===================================================================== */

html.nav-open,
html.nav-open body {
  overflow: hidden;
}

/* Sticky header breaks when body overflow is hidden — pin bar above overlay */
html.nav-open .site-header,
html.nav-open .nav {
  position: fixed !important;
  top: 0;
  left: 0;
  right: 0;
  z-index: 210;
}

.nav-desktop-only { display: flex; }
.nav-mobile-only { display: none; }

.nav-menu-btn {
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--fg1);
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color 0.2s, background 0.2s;
}

.nav-menu-btn:hover {
  border-color: var(--border-accent);
  background: rgba(200, 255, 63, 0.08);
}

.nav-menu-btn [data-icon="close"] { display: none; }
.nav-menu-btn[aria-expanded="true"] [data-icon="open"] { display: none; }
.nav-menu-btn[aria-expanded="true"] [data-icon="close"] { display: block; }

/* ─── Mobile menu drawer (slide from right) ─────────────────── */
.nav-mobile-backdrop {
  position: fixed;
  inset: 0;
  z-index: 189;
  border: none;
  padding: 0;
  margin: 0;
  background: rgba(0, 0, 0, 0.55);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.32s ease, visibility 0.32s ease;
  cursor: pointer;
}

.nav-mobile-backdrop.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-mobile[hidden] {
  display: none !important;
}

.nav-mobile:not([hidden]) {
  display: flex;
}

.nav-mobile {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: auto;
  width: min(100%, 420px);
  z-index: 190;
  flex-direction: column;
  background: rgba(11, 28, 16, 0.98);
  backdrop-filter: blur(16px);
  box-shadow: -12px 0 40px rgba(0, 0, 0, 0.35);
  transform: translateX(100%);
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.32s ease;
  will-change: transform;
}

.nav-mobile.is-open {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
}

@media (prefers-reduced-motion: reduce) {
  .nav-mobile,
  .nav-mobile-backdrop {
    transition-duration: 0.01ms;
  }
}

.nav-mobile-top {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: var(--nav-h);
  padding: 0 var(--page-px);
  border-bottom: 1px solid var(--border);
  background: rgba(11, 28, 16, 0.98);
}

.nav-mobile-top-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.nav-mobile-top-logo .nav-logo-mark {
  width: 38px;
  height: 38px;
  font-size: 15px;
}

.nav-mobile-top-logo .nav-logo-name {
  font-size: 11px;
  letter-spacing: 0.14em;
}

.nav-mobile-close {
  flex-shrink: 0;
}

.nav-mobile-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 16px var(--page-px) 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-mobile-lang {
  display: flex;
  gap: 10px;
  width: 100%;
  margin: 0;
}

.nav-mobile-lang .lang-btn {
  flex: 1 1 50%;
  width: 50%;
  min-width: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-sizing: border-box;
}

.nav-mobile-link {
  display: flex;
  align-items: center;
  box-sizing: border-box;
  height: var(--nav-mobile-link-h, 52px);
  min-height: var(--nav-mobile-link-h, 52px);
  max-height: var(--nav-mobile-link-h, 52px);
  padding: 0 16px;
  border-radius: var(--radius-lg);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--fg1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-shrink: 0;
  transition: background 0.2s, color 0.2s;
}

.nav-mobile-link:hover,
.nav-mobile-link.active {
  background: rgba(200, 255, 63, 0.1);
  color: var(--accent);
}

.nav-mobile-footer {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 14px;
  border-top: 1px solid var(--border);
  padding: 20px var(--page-px) max(20px, env(safe-area-inset-bottom));
}

.nav-mobile-cta {
  width: 100%;
  max-width: none;
  margin: 0;
  justify-content: center;
  height: 48px;
  min-height: 48px;
  max-height: 48px;
  box-sizing: border-box;
}

/* ─── Partner logo grids ───────────────────────────────────── */
.logos-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  width: 100%;
  min-width: 0;
}

.partner-logo-box {
  min-width: 0;
}

.partner-logo-text {
  text-align: center;
  word-break: break-word;
  hyphens: auto;
}

/* ─── Tablet (≤1024px) ─────────────────────────────────────── */
@media (max-width: 1024px) {
  :root {
    --page-px: 40px;
    --section-py: 80px;
    --nav-logo-w: auto;
    --nav-mobile-link-h: 52px;
  }

  body {
    overflow-x: hidden;
  }

  .site-header {
    position: relative;
    z-index: 200;
    width: 100%;
    height: var(--nav-h);
  }

  .nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    transform: none;
    width: 100%;
    max-width: none;
    z-index: 200;
  }

  .nav-inner {
    gap: 16px;
  }

  .page-wrap {
    padding-top: 0 !important;
  }

  .page-wrap:has(.hero) {
    padding-top: 0 !important;
  }

  .page-hero {
    padding: 28px var(--page-px) 48px !important;
  }

  .logos-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

  .nav-desktop-only { display: none !important; }
  .nav-mobile-only { display: inline-flex; }

  .nav-logo {
    flex: 1 1 auto;
    width: auto;
    min-width: 0;
    max-width: none;
  }

  .nav-logo-sub { display: none; }

  .split-3 { grid-template-columns: repeat(2, 1fr); }
  .split-4 { grid-template-columns: repeat(2, 1fr); }

  .stat-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }

  .values-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }

  .leaders-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

  .news-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

  .preview-label {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: 16px 20px;
  }
}

/* ─── Mobile (≤768px) ──────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --page-px: 20px;
    --section-py: 64px;
    --nav-h: 64px;
    --nav-mobile-link-h: 48px;
  }

  .nav-inner {
    gap: 12px;
  }

  .nav-logo-mark {
    width: 38px;
    height: 38px;
    font-size: 15px;
  }

  .nav-logo-name {
    font-size: 11px;
    letter-spacing: 0.14em;
  }

  .hero-content {
    padding-top: 88px !important;
    padding-bottom: 72px !important;
  }

  .page-hero {
    padding: 20px var(--page-px) 40px !important;
  }

  .split,
  .split-3,
  .split-4 {
    grid-template-columns: 1fr !important;
    gap: 28px;
  }

  .split[style*='gap:80px'] {
    gap: 28px !important;
  }

  .stat-grid {
    grid-template-columns: 1fr !important;
  }

  .stat-grid .card[style*='grid-column'] {
    grid-column: auto !important;
  }

  .values-grid {
    grid-template-columns: 1fr !important;
  }

  .leaders-grid {
    grid-template-columns: 1fr !important;
    gap: 20px;
  }

  .news-grid {
    grid-template-columns: 1fr !important;
    gap: 20px;
  }

  .news-grid > .card {
    min-width: 0;
  }

  .filter-bar {
    margin-bottom: 28px;
    gap: 8px;
  }

  .filter-btn {
    padding: 8px 14px;
    font-size: 12px;
  }

  .prog-item {
    grid-template-columns: 1fr !important;
    gap: 12px;
  }

  .partner-row {
    grid-template-columns: 48px minmax(0, 1fr) !important;
    gap: 14px;
    align-items: start;
  }

  .container > div[style*='grid-template-columns: 1fr 1fr'],
  .preview-label + div[style*='grid-template-columns: 1fr 1fr'] {
    grid-template-columns: 1fr !important;
    gap: 14px !important;
  }

  .person-card .photo-placeholder {
    aspect-ratio: 16 / 10;
  }

  .preview-label + div[style*='grid-template-columns: 1fr 1fr'] {
    grid-template-columns: 1fr !important;
  }

  .diagram-circle[style*='440px'] {
    width: min(92vw, 320px) !important;
    height: min(92vw, 320px) !important;
  }

  .diagram-circle[style*='300px'] {
    width: min(72vw, 220px) !important;
    height: min(72vw, 220px) !important;
  }

  .diagram-circle[style*='160px'] {
    width: min(48vw, 120px) !important;
    height: min(48vw, 120px) !important;
  }

  .diagram {
    padding: 32px 0 !important;
  }

  .cta-band {
    padding-top: 56px !important;
    padding-bottom: 56px !important;
  }

  .card {
    padding: 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-copy {
    width: 100%;
  }

  .logos-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 12px;
  }

  .partner-logo-box {
    height: auto;
    min-height: 72px;
    padding: 14px 12px;
  }

  .partner-logo-text {
    font-size: 12px;
    letter-spacing: 0.03em;
  }

  .hero-content > div[style*='display:flex'] {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-content .btn-lg {
    width: 100%;
    justify-content: center;
  }
}

/* ─── Small mobile (≤480px) ────────────────────────────────── */
@media (max-width: 480px) {
  :root {
    --page-px: 16px;
  }

  .display {
    font-size: clamp(40px, 11vw, 56px);
  }

  .nav-mobile-link {
    font-size: 16px;
    padding: 0 14px;
  }

  .logos-grid {
    grid-template-columns: 1fr !important;
  }
}

/* Narrow phones — single-column partner logos */
@media (max-width: 520px) {
  .logos-grid {
    grid-template-columns: 1fr !important;
  }
}

/* Legacy breakpoint cleanup (replaced by rules above) */
@media (max-width: 960px) {
  .nav-links:not(.nav-mobile-link),
  .nav-actions.nav-desktop-only {
    display: none !important;
  }
}