/* ===================================================================
   AllUpdate247 — Header Styles (Two-Tier Premium Navbar)
   =================================================================== */

/* --- Site Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

/* --- Top Tier --- */
.site-header-top {
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  padding: var(--space-3) 0;
}

.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

/* --- Logo --- */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
  display: block;
}

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

.site-logo-text {
  font-size: 1.6rem;
  font-weight: 800;
  color: #1a365d;
  letter-spacing: -0.5px;
  line-height: 1.1;
}

.site-logo-text span {
  color: var(--primary);
}

.site-logo-tagline {
  font-size: 0.7rem;
  font-weight: var(--fw-bold);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* --- Search Bar --- */
.header-search {
  flex: 1;
  max-width: 600px;
  margin: 0 var(--space-4);
}

.header-search-form {
  display: flex;
  align-items: center;
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 4px;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.header-search-form:focus-within {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(10, 102, 194, 0.1);
}

.header-search-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 10px 16px;
  font-size: var(--text-sm);
  color: var(--text);
  outline: none;
}

.header-search-input::placeholder {
  color: #94a3b8;
}

.header-search-btn {
  background: transparent;
  border: none;
  padding: 8px 12px;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.header-search-btn:hover {
  color: var(--primary);
}

/* --- Right Actions (Socials & Login) --- */
.header-actions-right {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-shrink: 0;
}

.header-socials {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid #dedede;
  border-radius: 50%;
  color: white;
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.social-icon:hover {
  transform: scale(1.1);
}

.social-icon.fb {
  background: #1877f2;
}

.social-icon.ig {
  background: #e4405f;
}

.social-icon.yt {
  background: #ff0000;
}

.social-icon.tg {
  background: #0088cc;
}

.header-login-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--primary);
  color: white;
  font-size: var(--text-sm);
  font-weight: var(--fw-bold);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--transition-fast);
}

.header-login-btn:hover {
  background: var(--primary-dark);
}

/* --- Hamburger Mobile --- */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger-bar {
  width: 100%;
  height: 3px;
  background: var(--text);
  border-radius: 3px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.open .hamburger-bar:nth-child(1) {
  transform: translateY(8.5px) rotate(45deg);
}

.hamburger.open .hamburger-bar:nth-child(2) {
  opacity: 0;
}

.hamburger.open .hamburger-bar:nth-child(3) {
  transform: translateY(-8.5px) rotate(-45deg);
}

/* --- Bottom Tier (Navigation) --- */
.site-header-bottom {
  background: var(--primary);
  /* Deep blue */
}

.header-bottom-inner {
  display: flex;
  align-items: center;
  height: 48px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0;
  width: 100%;
}

/* Safe centering for flex containers */
.main-nav::before,
.main-nav::after {
  content: '';
  margin: auto;
}

/* Hide scrollbar Chrome/Safari */

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 var(--space-4);
  height: 48px;
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-icon {
  font-size: 1.1em;
  opacity: 0.9;
}

.nav-link svg {
  opacity: 0.9;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.nav-link.active {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-weight: var(--fw-bold);
  border-top-left-radius: 6px;
  border-top-right-radius: 6px;
}

/* --- Dropdown Menu --- */
.nav-dropdown {
  position: relative;
  height: 48px;
}

.nav-dropdown-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  color: rgba(255, 255, 255, 0.9);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: white;
  min-width: 180px;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius);
  padding: var(--space-2) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.2s ease;
  z-index: var(--z-dropdown);
  border: 1px solid var(--border);
}

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

.nav-dropdown-menu a {
  display: block;
  padding: var(--space-2) var(--space-4);
  color: var(--text);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: background var(--transition-fast);
}

.nav-dropdown-menu a:hover {
  background: var(--surface-2);
  color: var(--primary);
}

/* =====================================================
   Mobile Navigation Menu (Slide out)
   ===================================================== */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -300px;
  width: 300px;
  height: 100vh;
  background: var(--surface);
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
  z-index: var(--z-overlay);
  padding: var(--space-6) var(--space-4);
  transition: right 0.3s ease;
  overflow-y: auto;
  display: none;
  /* Handled in JS or via responsive.css */
}

.mobile-nav.open {
  right: 0;
  display: block;
}

.mobile-nav-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: transparent;
  border: none;
  font-size: 24px;
  color: var(--text);
  cursor: pointer;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  color: var(--text);
  text-decoration: none;
  font-size: var(--text-lg);
  font-weight: var(--fw-medium);
  border-bottom: 1px solid var(--border);
}

.mobile-nav-link:hover {
  color: var(--primary);
}

.mobile-nav-socials {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
}