/*
 * =============================================================================
 * HEADER / NAVBAR — DREAM IT Brand
 *
 * NEW component — did not exist in the source project.
 * Created based on:
 *   - Brand colors from DREAM IT design tokens (#0B2046 Deep Navy, #FFFFFF White, Black)
 *   - Navigation links extracted from footer Quick Links + Others columns
 *   - Logo SVG extracted from sub-footer of all source pages
 *   - CTA button pattern from source hero sections
 *
 * Laravel equivalent: resources/views/components/header.blade.php
 * Depends on design-tokens.css
 * =============================================================================
 */

/* =============================================================================
   SITE HEADER
============================================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: 0 1px 6px var(--shadow-dark-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 68px;
}

/* =============================================================================
   LOGO
============================================================================= */
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.header-logo svg {
  width: 36px;
  height: 36px;
}
.header-logo-text strong {
  display: block;
  font-size: 16px;
  font-weight: var(--font-weight-extrabold);
  color: var(--primary);
  line-height: 1.1;
  letter-spacing: -0.2px;
}
.header-logo-text span {
  font-size: 10px;
  font-weight: var(--font-weight-bold);
  color: var(--color-charcoal-muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* =============================================================================
   PRIMARY NAVIGATION
============================================================================= */
.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.header-nav-item {
  position: relative;
}
.header-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: var(--font-weight-semibold);
  color: var(--text-body);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}
.header-nav-link:hover {
  color: var(--primary);
  background-color: var(--color-primary-light);
}
.header-nav-link.active {
  color: var(--primary);
  background-color: var(--color-primary-light);
}
.header-nav-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

/* =============================================================================
   DROPDOWN MENU
============================================================================= */
.has-dropdown:hover .dropdown-menu,
.has-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  background: #ffffff;
  border: 1px solid #f1f2f5;
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  z-index: 200;
  list-style: none;
}
.dropdown-menu li a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}
.dropdown-menu li a:hover {
  color: var(--primary);
  background-color: #EFF6FF;
}

/* Chevron arrow on dropdown toggle */
.nav-chevron {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-fast);
}
.has-dropdown:hover .nav-chevron,
.has-dropdown:focus-within .nav-chevron {
  transform: rotate(180deg);
}

/* =============================================================================
   HEADER CTA BUTTON
============================================================================= */
.header-cta-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.header-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 20px;
  background: var(--primary);
  color: var(--text-inverse);
  font-size: 13.5px;
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: var(--transition-base);
  box-shadow: 0 3px 10px rgba(27, 68, 156, 0.25);
  white-space: nowrap;
}
.header-cta-btn:hover {
  background: var(--primary-hover);
  color: var(--text-inverse); /* Keep text color same - no change */
  box-shadow: 0 5px 16px var(--color-primary-shadow-lg);
  transform: translateY(-1px) scale(1.02);
}
.header-cta-btn svg {
  width: 15px;
  height: 15px;
}

/* =============================================================================
   MOBILE HAMBURGER BUTTON
============================================================================= */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid #e5e7eb;
  background: #ffffff;
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}
.mobile-menu-toggle:hover {
  border-color: var(--primary);
  background: #EFF6FF;
}
.hamburger-line {
  display: block;
  width: 20px;
  height: 2px;
  background-color: #374151;
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}
/* Animated X state */
.mobile-menu-toggle.is-open .hamburger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-menu-toggle.is-open .hamburger-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.mobile-menu-toggle.is-open .hamburger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.dropdown-divider {
  height: 1px;
  background: #f1f2f5;
  margin: 6px 0;
}
.dropdown-view-all {
  font-weight: 700 !important;
  color: var(--primary) !important;
  display: flex !important;
  align-items: center;
  justify-content: space-between;
}
.dropdown-view-all:hover {
  background-color: var(--color-primary-light, #E8EDF5) !important;
}

/* =============================================================================
   MOBILE NAVIGATION DRAWER — COMPACT HIGH-END REDESIGN
============================================================================= */
.mobile-nav-drawer {
  display: none;
  background: #ffffff;
  border-top: 1px solid var(--color-border-light, #f1f2f5);
  box-shadow: 0 12px 32px rgba(11, 32, 70, 0.12);
  max-height: calc(100vh - 68px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-nav-drawer.is-open {
  display: block;
  animation: mobileDrawerSlide 0.24s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes mobileDrawerSlide {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-nav-container {
  padding: 12px clamp(16px, 4vw, 24px) 20px;
}

.mobile-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.mobile-nav-list > li > a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: var(--radius-sm, 8px);
  font-size: 15px;
  font-weight: var(--font-weight-semibold, 600);
  color: var(--color-text-primary, #0B2046);
  text-decoration: none;
  transition: all var(--transition-fast, 0.15s ease);
}
.mobile-nav-list > li > a:hover,
.mobile-nav-list > li > a.active {
  color: var(--primary, #0B2046);
  background-color: var(--color-primary-light, #E8EDF5);
}

/* Accordion for Courses */
.mobile-nav-accordion {
  position: relative;
}
.mobile-accordion-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: var(--radius-sm, 8px);
  font-size: 15px;
  font-weight: var(--font-weight-semibold, 600);
  color: var(--color-text-primary, #0B2046);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast, 0.15s ease);
}
.mobile-accordion-toggle:hover,
.mobile-accordion-toggle.is-active {
  color: var(--primary, #0B2046);
  background-color: var(--color-primary-light, #E8EDF5);
}
.mobile-accordion-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
  background: #f1f5f9;
  padding: 3px 8px;
  border-radius: 999px;
  transition: all 0.2s ease;
}
.mobile-accordion-toggle.is-active .mobile-accordion-badge {
  background: #ffffff;
  color: var(--primary, #0B2046);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.mobile-accordion-chevron {
  width: 12px;
  height: 12px;
  transition: transform 0.22s ease;
}
.mobile-accordion-toggle.is-active .mobile-accordion-chevron {
  transform: rotate(180deg);
}

.mobile-submenu {
  display: none;
  list-style: none;
  padding: 6px 0 6px 14px;
  margin: 2px 0 6px 12px;
  border-left: 2px solid var(--primary, #0B2046);
  flex-direction: column;
  gap: 2px;
}
.mobile-submenu.is-open {
  display: flex;
  animation: submenuFade 0.2s ease forwards;
}
@keyframes submenuFade {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.mobile-submenu a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-sm, 6px);
  font-size: 13.5px;
  font-weight: 500;
  color: #475569;
  text-decoration: none;
  transition: all var(--transition-fast, 0.15s ease);
}
.mobile-submenu a:hover {
  color: var(--primary, #0B2046);
  background-color: var(--color-primary-light, #E8EDF5);
  font-weight: 600;
}
.mobile-submenu a.mobile-submenu-all {
  font-weight: 700;
  color: var(--primary, #0B2046);
}

/* Quick Explore Chips */
.mobile-quick-chips-wrap {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #f1f2f5;
}
.mobile-chips-title {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  padding-left: 4px;
}
.mobile-quick-chips {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.mobile-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 8px 6px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  font-size: 11.5px;
  font-weight: 600;
  color: #334155;
  text-decoration: none;
  text-align: center;
  transition: all 0.2s ease;
}
.mobile-chip svg {
  width: 16px;
  height: 16px;
  color: var(--primary, #0B2046);
}
.mobile-chip:hover,
.mobile-chip.active {
  background: var(--color-primary-light, #E8EDF5);
  border-color: var(--primary, #0B2046);
  color: var(--primary, #0B2046);
}

/* Actions in mobile drawer */
.mobile-nav-cta-wrap {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-nav-cta-wrap .header-cta-btn {
  width: 100%;
  justify-content: center;
  padding: 11px 18px;
  font-size: 14px;
}
.mobile-hotline-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 9px 18px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-sm, 6px);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--primary, #0B2046);
  text-decoration: none;
  transition: all 0.2s ease;
}
.mobile-hotline-btn svg {
  width: 15px;
  height: 15px;
  color: #059669;
}
.mobile-hotline-btn:hover {
  background: #f0fdf4;
  border-color: #86efac;
}

/* Legal / Meta links at bottom */
.mobile-nav-meta-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid #f1f2f5;
  font-size: 12px;
  color: #94a3b8;
}
.mobile-nav-meta-links a {
  color: #64748b;
  text-decoration: none;
  transition: color 0.15s ease;
}
.mobile-nav-meta-links a:hover {
  color: var(--primary, #0B2046);
  text-decoration: underline;
}

/* =============================================================================
   RESPONSIVE BREAKPOINTS
============================================================================= */
@media (max-width: 1024px) {
  .header-nav { display: none; }
  .header-cta-group .header-cta-btn { display: none; }
  .mobile-menu-toggle { display: flex; }
}

@media (min-width: 1025px) {
  .mobile-nav-drawer { display: none !important; }
}