/**
 * Digital Crazy Hub - Global Navbar Stylesheet
 * Clean-Room Rebuild - Desktop Nav, Dropdowns, Mobile Header & Drawer Accordions
 * Vanilla CSS3
 */

/* ==========================================
   1. FIXED HEADER & OUTER SHELL
   ========================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-navy, #0B1730);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background-color var(--transition-base, 0.3s ease),
              box-shadow var(--transition-base, 0.3s ease),
              border-color var(--transition-base, 0.3s ease);
}

.site-header.scrolled {
  background-color: rgba(11, 23, 48, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  border-bottom-color: rgba(255, 255, 255, 0.14);
}

#navbar-container {
  display: block;
  width: 100%;
}

/* Prevent page background scrolling when mobile navigation drawer is open */
body.dch-drawer-open {
  overflow: hidden !important;
  touch-action: none;
}

body.dch-drawer-open .site-header,
body.dch-drawer-open .site-header.scrolled {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

/* ==========================================
   2. NAVBAR CONTAINER & BRAND LOGO
   ========================================== */
.dch-navbar {
  display: block;
  width: 100%;
}

.dch-nav-container {
  max-width: var(--container-max, 1240px);
  margin: 0 auto;
  padding: 12px var(--container-padding, 24px);
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.dch-brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  transition: opacity var(--transition-fast, 0.2s ease);
}

.dch-brand:hover,
.dch-brand:focus-visible {
  opacity: 0.92;
}

.dch-brand-logo {
  height: 56px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  display: block;
}

/* ==========================================
   3. DESKTOP NAVIGATION
   ========================================== */
.dch-desktop-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-left: auto;
}

.dch-nav-list {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.dch-nav-item {
  position: relative;
  list-style: none;
}

.dch-nav-link {
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #FFFFFF;
  text-decoration: none;
  padding: 8px 4px;
  display: inline-flex;
  align-items: center;
  position: relative;
  transition: color var(--transition-fast, 0.2s ease);
}

.dch-nav-link:hover,
.dch-nav-link:focus-visible {
  color: var(--color-secondary-light, #EEE9FF);
}

.dch-nav-link.active {
  color: #FFFFFF;
}

.dch-nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 4px;
  right: 4px;
  height: 2.5px;
  background: var(--gradient-brand, linear-gradient(135deg, #0755C9 0%, #6547F5 100%));
  border-radius: var(--radius-pill, 999px);
}

/* ==========================================
   4. DESKTOP DROPDOWNS (About Us & Services)
   ========================================== */
.dch-dropdown-trigger-group {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  position: relative;
}

.dch-dropdown-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 0;
  color: #FFFFFF;
  border-radius: var(--radius-sm, 6px);
  line-height: 1;
  transition: color var(--transition-fast, 0.2s ease);
}

.dch-chevron-icon {
  transition: transform var(--transition-fast, 0.2s ease);
}

.dch-has-dropdown:hover .dch-dropdown-btn,
.dch-has-dropdown:hover .dch-nav-link,
.dch-has-dropdown.is-open .dch-dropdown-btn,
.dch-has-dropdown.is-open .dch-nav-link {
  color: var(--color-secondary-light, #EEE9FF);
}

.dch-has-dropdown:hover .dch-chevron-icon,
.dch-has-dropdown.is-open .dch-chevron-icon {
  transform: rotate(180deg);
}

.dch-dropdown-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background-color: #FFFFFF;
  border-radius: var(--radius-md, 12px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18), 0 2px 8px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--color-border, #E5E8F0);
  min-width: 250px;
  padding: 8px 0;
  margin: 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  z-index: 1050;
}

/* Invisible hover bridge prevents premature closing */
.dch-dropdown-menu::before {
  content: '';
  position: absolute;
  top: -16px;
  left: 0;
  right: 0;
  height: 16px;
  background: transparent;
}

.dch-services-dropdown {
  min-width: 270px;
}

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

.dch-dropdown-link {
  display: block;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text, #18233B);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background-color var(--transition-fast, 0.2s ease),
              color var(--transition-fast, 0.2s ease),
              border-color var(--transition-fast, 0.2s ease),
              padding-left var(--transition-fast, 0.2s ease);
}

.dch-dropdown-link:hover,
.dch-dropdown-link:focus-visible,
.dch-dropdown-link.active {
  background-color: var(--color-primary-soft, #F3F6FF);
  color: var(--color-primary, #0755C9);
  border-left-color: var(--color-primary, #0755C9);
  padding-left: 24px;
}

/* ==========================================
   5. DESKTOP CTA BUTTON
   ========================================== */
.dch-nav-cta-wrapper {
  flex-shrink: 0;
}

.dch-nav-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient-brand, linear-gradient(135deg, #0755C9 0%, #6547F5 100%));
  color: #FFFFFF;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  padding: 11px 22px;
  border-radius: var(--radius-pill, 999px);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(101, 71, 245, 0.35);
  white-space: nowrap;
  transition: transform var(--transition-fast, 0.2s ease),
              box-shadow var(--transition-fast, 0.2s ease),
              background var(--transition-fast, 0.2s ease);
}

.dch-nav-cta-btn:hover,
.dch-nav-cta-btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(101, 71, 245, 0.45);
  color: #FFFFFF;
}

.dch-nav-cta-btn .dch-btn-arrow {
  transition: transform var(--transition-fast, 0.2s ease);
}

.dch-nav-cta-btn:hover .dch-btn-arrow {
  transform: translateX(3px);
}

/* ==========================================
   6. MOBILE TOGGLE (HAMBURGER BUTTON)
   ========================================== */
.dch-mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 0;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm, 6px);
  color: #FFFFFF;
  z-index: 1010;
  transition: background-color var(--transition-fast, 0.2s ease);
}

.dch-mobile-toggle:focus-visible {
  outline: 2px solid var(--color-primary-light, #E5ECFF);
  outline-offset: 2px;
}

.dch-hamburger-icon {
  width: 24px;
  height: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.dch-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #FFFFFF;
  border-radius: 2px;
  transition: transform 0.28s ease, opacity 0.24s ease;
}

.dch-mobile-toggle.is-active .dch-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.dch-mobile-toggle.is-active .dch-bar:nth-child(2) {
  opacity: 0;
}

.dch-mobile-toggle.is-active .dch-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================
   7. MOBILE DRAWER BACKDROP OVERLAY
   ========================================== */
.dch-drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100%;
  height: 100vh;
  height: 100dvh;
  background: rgba(5, 7, 13, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.dch-drawer-backdrop.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* ==========================================
   8. MOBILE SLIDE-IN DRAWER
   ========================================== */
.dch-mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 380px;
  height: 100%;
  height: 100vh;
  height: 100dvh;
  background-color: #FFFFFF;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.22);
}

.dch-mobile-drawer.is-open {
  transform: translateX(0);
}

.dch-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border-light, #F0F2F7);
  background-color: #FFFFFF;
  flex-shrink: 0;
}

.dch-drawer-brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.dch-drawer-logo {
  height: 44px;
  width: auto;
  max-width: 170px;
  object-fit: contain;
}

.dch-drawer-close {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border, #E5E8F0);
  background-color: var(--color-bg-alt, #F5F6FA);
  border-radius: var(--radius-sm, 6px);
  color: var(--color-text, #18233B);
  cursor: pointer;
  transition: all var(--transition-fast, 0.2s ease);
}

.dch-drawer-close:hover,
.dch-drawer-close:focus-visible {
  background-color: var(--color-primary-soft, #F3F6FF);
  color: var(--color-primary, #0755C9);
  border-color: var(--color-primary-light, #E5ECFF);
}

.dch-drawer-body {
  flex: 1 1 0%;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 12px 18px 24px;
}

.dch-drawer-footer {
  padding: 16px 20px calc(16px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--color-border-light, #F0F2F7);
  background-color: #FFFFFF;
  flex-shrink: 0;
}

.dch-drawer-cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 13px 20px;
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--gradient-brand, linear-gradient(135deg, #0755C9 0%, #6547F5 100%));
  border-radius: var(--radius-pill, 999px);
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(101, 71, 245, 0.35);
  text-align: center;
  transition: transform var(--transition-fast, 0.2s ease),
              box-shadow var(--transition-fast, 0.2s ease);
}

.dch-drawer-cta-btn:hover,
.dch-drawer-cta-btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(101, 71, 245, 0.45);
  color: #FFFFFF;
}

/* ==========================================
   9. MOBILE DRAWER NAVIGATION & IN-FLOW ACCORDIONS
   ========================================== */
.dch-drawer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dch-drawer-item {
  width: 100%;
  border-bottom: 1px solid var(--color-border-light, #F0F2F7);
}

.dch-drawer-link {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 12px 8px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text, #18233B);
  text-decoration: none;
  border-radius: var(--radius-sm, 6px);
  transition: color var(--transition-fast, 0.2s ease),
              background-color var(--transition-fast, 0.2s ease);
}

.dch-drawer-link:hover,
.dch-drawer-link:focus-visible,
.dch-drawer-link.active {
  color: var(--color-primary, #0755C9);
}

/* Accordion Header Button (Full-width touch target for expanding submenus) */
.dch-accordion-header-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 48px;
  padding: 12px 8px;
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text, #18233B);
  cursor: pointer;
  border-radius: var(--radius-sm, 6px);
  text-align: left;
  transition: color var(--transition-fast, 0.2s ease),
              background-color var(--transition-fast, 0.2s ease);
}

.dch-accordion-header-btn:hover,
.dch-accordion-header-btn:focus-visible,
.dch-drawer-accordion.is-expanded .dch-accordion-header-btn {
  color: var(--color-primary, #0755C9);
  background-color: var(--color-primary-soft, #F3F6FF);
}

.dch-accordion-chevron {
  flex-shrink: 0;
  margin-left: auto;
  color: currentColor;
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.dch-drawer-accordion.is-expanded .dch-accordion-chevron {
  transform: rotate(180deg);
}

/* In-Flow Accordion Body (pushes content downward smoothly, stays strictly in drawer) */
.dch-accordion-collapse {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.25s ease,
              visibility 0.35s ease;
  background-color: var(--color-bg-soft, #F8F9FD);
  border-radius: var(--radius-sm, 6px);
  margin: 0;
}

.dch-drawer-accordion.is-expanded .dch-accordion-collapse {
  max-height: 800px;
  opacity: 1;
  visibility: visible;
  margin: 4px 0 12px 0;
  border: 1px solid var(--color-border-light, #F0F2F7);
}

.dch-accordion-menu {
  list-style: none;
  margin: 0;
  padding: 6px 0;
}

.dch-accordion-link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--color-text, #18233B);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background-color var(--transition-fast, 0.2s ease),
              color var(--transition-fast, 0.2s ease),
              border-color var(--transition-fast, 0.2s ease),
              padding-left var(--transition-fast, 0.2s ease);
}

.dch-accordion-link:hover,
.dch-accordion-link:focus-visible,
.dch-accordion-link.active {
  background-color: var(--color-primary-soft, #F3F6FF);
  color: var(--color-primary, #0755C9);
  border-left-color: var(--color-primary, #0755C9);
  padding-left: 20px;
}

/* ==========================================
   10. RESPONSIVE LAYOUT SWITCHING
   Switch to mobile drawer before desktop crowding (<= 1100px)
   ========================================== */
@media screen and (max-width: 1100px) {
  .site-header,
  .site-header.scrolled {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  .dch-desktop-nav {
    display: none !important;
  }

  .dch-mobile-toggle {
    display: inline-flex !important;
    margin-left: auto;
  }

  .dch-nav-container {
    min-height: 68px;
    padding: 10px var(--container-padding, 20px);
  }

  .dch-brand-logo {
    height: 48px;
    max-width: 175px;
  }
}

@media screen and (max-width: 480px) {
  .dch-nav-container {
    min-height: 62px;
    padding: 8px var(--container-padding, 16px);
  }

  .dch-brand-logo {
    height: 42px;
    max-width: 150px;
  }

  .dch-mobile-drawer {
    max-width: 100vw;
  }

  .dch-drawer-header {
    padding: 14px 16px;
  }

  .dch-drawer-body {
    padding: 10px 14px 20px;
  }

  .dch-drawer-footer {
    padding: 14px 16px calc(14px + env(safe-area-inset-bottom, 0px));
  }
}

@media screen and (max-width: 360px) {
  .dch-brand-logo {
    height: 38px;
    max-width: 135px;
  }

  .dch-drawer-link {
    font-size: 0.95rem;
  }

  .dch-accordion-link {
    font-size: 0.875rem;
    padding: 9px 12px;
  }
}