/* ============================================================
   HEADER.CSS — Sticky Navigation, Logo, Dropdown
   Evolaxis Technology · Light Theme
   ============================================================ */

/* ── HEADER WRAPPER ── */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: 72px;
  padding: 0 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(30,64,175,0.06), var(--shadow-xs);
  transition: background var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
}

header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
}

/* ── LOGO ── */
.logo {
  display: flex;
  align-items: center;
  gap: 5px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 55px;
  height: 55px;
  flex-shrink: 0;
}

.logo-icon svg {
  width: 100%;
  height: 100%;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text .logo-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2.25rem;
  color: var(--primary);
  letter-spacing: -0.6px;
}

.logo-text .logo-tagline {
  font-size: 0.6rem;
  font-weight: 500;
  color: var(--text-light);
  letter-spacing: 0.16em;
 
}

/* ── MAIN NAV ── */
nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

nav > a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: var(--radius-xs);
  transition: color var(--duration-fast) var(--ease),
              background var(--duration-fast) var(--ease);
  white-space: nowrap;
}

nav > a:hover {
  color: var(--primary);
  background: var(--primary-pale);
}

nav > a.active {
  color: var(--primary);
  font-weight: 600;
}

/* ── HEADER CTA GROUP ── */
.header-cta-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ── MOBILE HAMBURGER ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-xs);
  transition: background var(--duration-fast) var(--ease);
}

.hamburger:hover {
  background: var(--surface2);
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform var(--duration) var(--ease), opacity var(--duration-fast) var(--ease);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── MOBILE MENU ── */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  padding: 16px 5% 20px;
  z-index: calc(var(--z-nav) - 1);
  flex-direction: column;
  gap: 2px;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  padding: 11px 16px;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: background var(--duration-fast) var(--ease),
              color var(--duration-fast) var(--ease);
}

.mobile-nav a:hover {
  background: var(--primary-pale);
  color: var(--primary);
}

.mobile-nav .btn {
  margin-top: 8px;
  justify-content: center;
}

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

.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  /* Match nav > a font styles exactly */
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-body);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: var(--radius-xs);
  transition: color var(--duration-fast) var(--ease),
              background var(--duration-fast) var(--ease);
  white-space: nowrap;
}

.dropdown-arrow {
  font-size: 0.7rem;
  transition: transform var(--duration) var(--ease);
  display: inline-block;
}

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

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 320px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration) var(--ease),
              transform var(--duration) var(--ease),
              visibility var(--duration) var(--ease);
  transform: translateX(-50%) translateY(-8px);
  z-index: 200;
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  background: var(--white);
  border-left: 1px solid var(--border);
  border-top: 1px solid var(--border);
  transform: translateX(-50%) rotate(45deg);
}

.nav-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background var(--duration-fast) var(--ease);
  color: var(--text);
}

.nav-dropdown-menu a:hover {
  background: var(--primary-pale);
}

.nav-dropdown-menu a .ddicon {
  font-size: 1.3rem;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border-radius: var(--radius-xs);
  flex-shrink: 0;
}

.nav-dropdown-menu a:hover .ddicon {
  background: var(--blue-100);
}

.nav-dropdown-menu a span:last-child {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.nav-dropdown-menu a strong {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

.nav-dropdown-menu a small {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* ── MOBILE NAV GROUP (accordion) — see bottom of file ── */


@media (max-width: 960px) {
  nav,
  .header-cta-group {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}

@media (max-width: 480px) {
  header {
    padding: 0 4%;
  }
}

/* ══════════════════════════════════════════════════════════════
   DROPDOWN TRIGGERS — same font as all nav links, no active state
══════════════════════════════════════════════════════════════ */

/* Dropdown triggers must never show bold/active highlight */
nav .nav-dropdown-trigger.active,
nav .nav-dropdown-trigger:focus,
nav .nav-dropdown-trigger:focus-visible {
  color: var(--text-secondary) !important;
  font-weight: 500 !important;
  background: transparent !important;
}

/* Hover — same as nav > a:hover */
nav .nav-dropdown:hover .nav-dropdown-trigger,
nav .nav-dropdown-trigger:hover {
  color: var(--primary) !important;
  background: var(--primary-pale) !important;
  font-weight: 500 !important;
}

/* ── MOBILE ACCORDION ── */
.mobile-nav-group {
  padding: 0;
  border-radius: var(--radius-xs);
  overflow: hidden;
}

/* The clickable parent row (Services / About Us label) */
.mobile-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 16px;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  font-family: var(--font-body);
  cursor: pointer;
  user-select: none;
  transition: background var(--duration-fast) var(--ease),
              color var(--duration-fast) var(--ease);
  list-style: none;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
}

.mobile-nav-toggle:hover {
  background: var(--primary-pale);
  color: var(--primary);
}

.mobile-nav-toggle .mob-arrow {
  font-size: 0.65rem;
  opacity: 0.5;
  transition: transform var(--duration) var(--ease);
  flex-shrink: 0;
}

.mobile-nav-group.open .mobile-nav-toggle .mob-arrow {
  transform: rotate(180deg);
  opacity: 1;
}

.mobile-nav-group.open .mobile-nav-toggle {
  color: var(--primary);
  background: var(--primary-pale);
}

/* Submenu items — hidden by default, shown when open */
.mobile-sub-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  padding: 4px 0 6px;
  border-left: 2px solid var(--border);
  margin: 0 16px;
}

.mobile-nav-group.open .mobile-sub-menu {
  display: flex;
}

.mobile-sub-menu a {
  padding: 9px 14px !important;
  font-size: 0.875rem !important;
  color: var(--text-secondary) !important;
  border-radius: var(--radius-xs) !important;
  display: flex;
  align-items: center;
  gap: 8px;
}

.mobile-sub-menu a:hover {
  background: var(--primary-pale) !important;
  color: var(--primary) !important;
}

.mobile-sub-menu .sub-icon {
  font-size: 1rem;
  flex-shrink: 0;
}

.mobile-sub-menu small {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 1px;
  font-weight: 400;
}