/* ============================================
   Digital Solidarity — Navigation Styles (nav.css)
   ============================================ */

/* Nav Base */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10001;
  height: var(--nav-h);
  background: transparent;
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.main-nav.nav-scrolled {
  background: rgba(2, 8, 16, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

/* Logo */
.nav-logo {
  font-family: var(--font-h);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.05em;
  color: var(--text-1);
  white-space: nowrap;
}

.nav-logo:hover {
  color: var(--cyan);
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links > li > a,
.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-family: var(--font-b);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--r-sm);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
  white-space: nowrap;
  cursor: pointer;
}

.nav-links > li > a:hover,
.nav-links > li > a.active,
.nav-dropdown-toggle:hover {
  color: var(--text-1);
  background: var(--bg-glass);
}

.nav-links > li > a.active {
  color: var(--cyan);
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--bg-2);
  border: 1px solid var(--border-md);
  border-radius: var(--r-md);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  list-style: none;
}

/* Desktop: hover to open */
.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-menu a {
  display: block;
  padding: 10px 14px;
  font-size: 0.88rem;
  color: var(--text-2);
  border-radius: var(--r-sm);
  transition: color 0.15s, background 0.15s;
}

.nav-dropdown-menu a:hover {
  color: var(--text-1);
  background: var(--cyan-soft);
}

.nav-dropdown-toggle svg {
  transition: transform 0.2s var(--ease);
}

.nav-dropdown:hover .nav-dropdown-toggle svg {
  transform: rotate(180deg);
}

/* Nav CTA */
.nav-cta {
  padding: 10px 22px;
  font-size: 0.85rem;
  white-space: nowrap;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.nav-language {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--border-md);
  border-radius: 999px;
  background: rgba(5,16,40,0.85);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
  cursor: pointer;
}

.nav-language-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.nav-language-select {
  min-width: 104px;
  border: none;
  background: transparent;
  color: var(--text-1);
  font-family: var(--font-b);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  -webkit-appearance: menulist;
  appearance: menulist;
  position: relative;
  z-index: 1;
}

.nav-language-select option {
  background: var(--bg-2);
  color: var(--text-1);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-1);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

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

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

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

/* Footer Styles */
.site-footer {
  background: var(--bg-1);
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand .nav-logo {
  font-size: 1rem;
  display: inline-block;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.6;
}

.footer-heading {
  font-family: var(--font-b);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-1);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-2);
  transition: color 0.2s var(--ease);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.footer-contact {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-contact a {
  font-size: 0.85rem;
  color: var(--text-2);
}

.footer-contact a:hover {
  color: var(--cyan);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-3);
}

/* ============================================
   Mobile Responsive
   ============================================ */
@media (max-width: 768px) {
  .nav-inner {
    gap: 8px;
  }

  .nav-logo {
    font-size: 0.85rem;
    white-space: normal;
    line-height: 1.2;
    flex-shrink: 1;
    min-width: 0;
  }

  .nav-cta {
    display: none;
  }

  .nav-actions {
    gap: 8px;
    margin-left: auto;
    flex-shrink: 0;
  }

  .nav-language {
    padding: 6px 8px;
  }

  .nav-language-label {
    display: none;
  }

  .nav-language-select {
    min-width: 70px;
    font-size: 0.75rem;
  }

  .nav-hamburger {
    display: flex;
    position: relative;
    z-index: 10003;
    flex-shrink: 0;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 20px;
    background: rgba(2, 8, 16, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease), visibility 0.3s;
    overflow-y: auto;
  }

  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    z-index: 10002;
  }

  .nav-links > li > a,
  .nav-dropdown-toggle {
    padding: 14px 16px;
    font-size: 1rem;
  }

  /* Mobile dropdown: click to toggle */
  .nav-dropdown:hover .nav-dropdown-menu {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
  }

  .nav-dropdown.is-open .nav-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0 0 0 16px;
    min-width: 0;
  }

  .nav-dropdown.is-open .nav-dropdown-toggle svg {
    transform: rotate(180deg);
  }

  /* Footer mobile */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-contact {
    flex-direction: column;
    gap: 8px;
  }
}