/* ══════════════════════════════════════════════════════════════
   SKILL TENET INTERNATIONAL SERVICES
   Navigation - Sticky nav, mobile hamburger
   ══════════════════════════════════════════════════════════════ */

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 48px;
  background: transparent;
  transition:
    background 0.3s ease,
    backdrop-filter 0.3s ease;
}

/* Scrolled state — globe (dark) pages */
nav.scrolled {
  background: rgba(4, 6, 15, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

/* Scrolled state — interior (white) pages */
body:not(.globe-page) nav.scrolled {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* ── LOGO ── */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  pointer-events: all;
  cursor: pointer;
}

.logo-mark {
  width: 36px;
  height: 36px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

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

.logo-text {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--globe-text);
}

.logo-sub {
  font-size: 9px;
  font-family: var(--font-mono);
  color: var(--globe-muted);
  letter-spacing: 0.1em;
}

/* ── NAV LINKS ── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--globe-text);
  text-decoration: none;
  transition: color 0.2s;
  pointer-events: all;
}

.nav-links a:hover {
  color: var(--clr-red);
}

.nav-links a.active {
  color: var(--clr-red);
}

/* ── NAV BADGE ── */
.nav-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--globe-muted);
  letter-spacing: 0.12em;
  border: 1px solid var(--globe-border);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  pointer-events: all;
}

/* ── MOBILE HAMBURGER ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  pointer-events: all;
  padding: 8px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--globe-text);
  transition:
    transform 0.3s,
    opacity 0.3s;
}

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

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

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

/* ── MOBILE MENU ── */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: rgba(4, 6, 15, 0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 99;
  transition: right 0.3s ease;
  padding: 80px 32px 32px;
  overflow-y: auto;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu .nav-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}

.mobile-menu .nav-links a {
  font-size: 14px;
}

.mobile-menu .nav-badge {
  display: inline-block;
  margin-top: 24px;
}

/* Mobile overlay */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 98;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.mobile-overlay.active {
  opacity: 1;
  pointer-events: all;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  nav {
    padding: 20px 32px;
  }

  .nav-links {
    gap: 24px;
  }

  .nav-badge {
    display: none;
  }
}

@media (max-width: 767px) {
  nav {
    padding: 16px 24px;
  }

  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .logo-text {
    font-size: 11px;
  }

  .logo-sub {
    font-size: 8px;
  }

  .logo-mark {
    width: 30px;
    height: 30px;
  }
}

/* ── CORPORATE SITE NAV (non-globe pages) ── */
body:not(.globe-page) nav {
  background: var(--clr-white);
  border-bottom: 1px solid var(--clr-border);
}

body:not(.globe-page) .logo-text {
  color: var(--clr-black);
}

body:not(.globe-page) .logo-sub {
  color: var(--clr-text-light);
}

body:not(.globe-page) .nav-links a {
  color: var(--clr-text);
}

body:not(.globe-page) .nav-links a:hover {
  color: var(--clr-red);
}

body:not(.globe-page) .nav-badge {
  color: var(--clr-text-light);
  border-color: var(--clr-border);
}

body:not(.globe-page) .hamburger span {
  background: var(--clr-black);
}

/* ── DROPDOWNS ── */
.has-dropdown {
  position: relative;
}

.has-dropdown > a {
  display: flex;
  align-items: center;
  gap: 4px;
}

.has-dropdown > a::after {
  content: '';
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  margin-top: 2px;
  transition: transform 0.2s;
}

.has-dropdown:hover > a::after {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 8px 0;
  margin-top: 12px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.2s ease;
  z-index: 100;
}

.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li {
  margin: 0;
  padding: 0;
  list-style: none;
}

.dropdown-menu a {
  display: block;
  padding: 10px 20px !important;
  font-family: var(--font-body) !important;
  font-size: 0.875rem !important;
  color: var(--clr-text) !important;
  text-transform: none !important;
  letter-spacing: normal !important;
  border-bottom: 1px solid var(--clr-border);
}

.dropdown-menu li:last-child a {
  border-bottom: none;
}

.dropdown-menu a:hover {
  background: rgba(26, 111, 196, 0.06);
  color: var(--clr-red) !important;
}

/* Globe page dark mode dropdowns */
.globe-page .dropdown-menu {
  background: rgba(4, 6, 15, 0.95);
  border-color: rgba(255, 255, 255, 0.1);
}

.globe-page .dropdown-menu a {
  color: rgba(255, 255, 255, 0.8) !important;
  border-color: rgba(255, 255, 255, 0.05);
}

.globe-page .dropdown-menu a:hover {
  color: var(--clr-red) !important;
  background: rgba(255, 255, 255, 0.05);
}

/* Mobile Dropdown styles */
.mobile-menu .has-dropdown .dropdown-menu {
  position: static;
  opacity: 1;
  visibility: visible;
  transform: none;
  background: transparent;
  border: none;
  box-shadow: none;
  margin-top: 8px;
  padding-left: 16px;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu .dropdown-menu a {
  padding: 8px 0 !important;
  border: none !important;
  color: rgba(255, 255, 255, 0.6) !important;
  font-size: 0.8125rem !important;
}