/**
 * DIZYBIRD Design System - Header, Navigation & Layout
 */

/* 1. Top Micro Bar */
.top-bar {
  background-color: var(--bg-alt);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
  color: var(--text-muted);
  padding: 0.4rem 0;
}

.top-bar a {
  color: var(--text-body);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 500;
}

.top-bar a:hover {
  color: var(--brand-blue);
}

.top-bar-divider {
  color: var(--border-medium);
  margin: 0 0.5rem;
}

/* 2. Main Site Header - Sticky Navbar */
.site-header {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.site-header.is-scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border-bottom-color: rgba(0, 0, 0, 0.06);
  background-color: rgba(255, 255, 255, 0.98);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.75rem;
}

/* Logo */
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--brand-black-deep);
  text-decoration: none;
}

.site-logo-img {
  height: 38px;
  width: auto;
  max-width: 200px;
  display: block;
  object-fit: contain;
}

.footer-logo-img {
  height: 44px;
}

.mobile-logo-img {
  height: 34px;
}

.mobile-drawer-logo {
  height: 32px;
  width: auto;
  max-width: 155px;
  display: block;
  object-fit: contain;
}

.admin-logo-img {
  height: 36px;
}

.brand-logo .logo-mark {
  width: 2.25rem;
  height: 2.25rem;
  background: var(--brand-yellow);
  color: var(--brand-black);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.25rem;
  box-shadow: 0 2px 8px rgba(255, 204, 1, 0.4);
}

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

.brand-logo .brand-title {
  color: var(--brand-black);
  font-size: 1.35rem;
  line-height: 1;
}

.brand-logo .brand-tagline {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand-blue);
  font-weight: 700;
  margin-top: 2px;
}

/* Desktop Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-headline);
  text-decoration: none;
  padding: 0.5rem 0;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-item:hover > .nav-link {
  color: var(--brand-blue);
}

.nav-arrow {
  width: 0.85rem;
  height: 0.85rem;
  transition: transform var(--transition-fast);
}

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

/* Mega Menu Dropdown */
.mega-menu {
  position: absolute;
  top: 100%;
  left: -200px;
  width: 780px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
  z-index: 1010;
}

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

.mega-menu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.mega-menu-col-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border-subtle);
}

.mega-menu-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mega-menu-link {
  display: block;
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--text-headline);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.mega-menu-link:hover {
  background-color: var(--brand-blue-light);
  color: var(--brand-blue);
  transform: translateX(4px);
}

.mega-menu-link .link-desc {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: 2px;
}

/* Header CTAs */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.mobile-menu-toggle {
  display: none;
  background: var(--bg-surface);
  border: 1.5px solid var(--border-medium);
  padding: 0;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  color: var(--brand-black-deep);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover,
.mobile-menu-toggle:focus {
  background-color: var(--bg-subtle);
  border-color: var(--brand-blue);
  color: var(--brand-blue);
  outline: none;
}

.mobile-menu-toggle svg {
  display: block;
  width: 22px;
  height: 22px;
}

/* 3. Mobile Navigation Drawer */
.mobile-drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(10, 15, 29, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 85%;
  max-width: 360px;
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-xl);
  z-index: 1999;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 1.5rem;
}

.mobile-drawer-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

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

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
}

.drawer-close-btn {
  background: none;
  border: none;
  padding: 0.4rem;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--text-muted);
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-headline);
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-nav-sublist {
  list-style: none;
  padding-left: 1rem;
  margin-top: 0.5rem;
  display: none;
  flex-direction: column;
  gap: 0.5rem;
}

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

.mobile-nav-sublink {
  font-size: 0.875rem;
  color: var(--text-body);
  padding: 0.35rem 0;
  display: block;
}

.mobile-drawer-actions {
  margin-top: auto;
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* 4. Mobile Bottom Fixed Dock */
.mobile-bottom-dock {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border-subtle);
  padding: 0.5rem 0.75rem;
  z-index: 1000;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.06);
}

.dock-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.3fr;
  gap: 0.5rem;
}

.dock-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.55rem 0.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  border: 1px solid transparent;
}

.dock-btn-call {
  background-color: var(--bg-alt);
  color: var(--text-headline);
  border-color: var(--border-subtle);
}

.dock-btn-whatsapp {
  background-color: var(--color-whatsapp-bg);
  color: #128c7e;
  border-color: rgba(37, 211, 102, 0.3);
}

.dock-btn-quote {
  background-color: var(--brand-yellow);
  color: var(--brand-black);
}

/* 5. Deep Corporate Footer */
.site-footer {
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border-subtle);
  padding-top: 4.5rem;
  padding-bottom: 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

.footer-col-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-headline);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--brand-blue);
  padding-left: 2px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .main-nav { display: none !important; }
  .nav-phone-btn { display: none !important; }
  .mobile-menu-toggle { display: inline-flex !important; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .top-bar { display: none !important; }
  .site-header {
    height: auto;
  }
  .header-inner {
    height: 3.85rem;
    max-width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .brand-logo {
    display: inline-flex;
    align-items: center;
    flex-shrink: 1;
    min-width: 0;
  }
  .brand-logo .site-logo-img {
    height: 30px;
    width: auto;
    max-width: 150px;
    display: block !important;
    object-fit: contain;
  }
  .header-actions {
    gap: 0.5rem;
    flex-shrink: 0;
    display: flex;
    align-items: center;
  }
  .nav-quote-btn {
    padding: 0.42rem 0.7rem;
    font-size: 0.8rem;
    white-space: nowrap;
    letter-spacing: 0;
    flex-shrink: 0;
  }
  .mobile-menu-toggle {
    display: inline-flex !important;
    width: 38px;
    height: 38px;
    flex-shrink: 0;
  }
  .mobile-menu-toggle svg {
    width: 20px;
    height: 20px;
  }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 0.75rem; text-align: center; }
  .mobile-bottom-dock { display: block; }
  body { padding-bottom: 3.8rem; } /* Offset for bottom dock */
}

@media (max-width: 480px) {
  .header-inner {
    height: 3.6rem;
  }
  .brand-logo .site-logo-img {
    height: 27px;
    max-width: 135px;
  }
  .header-actions {
    gap: 0.35rem;
  }
  .nav-quote-btn {
    padding: 0.38rem 0.55rem;
    font-size: 0.75rem;
  }
  .mobile-menu-toggle {
    width: 36px;
    height: 36px;
  }
  .mobile-menu-toggle svg {
    width: 18px;
    height: 18px;
  }
}

@media (max-width: 360px) {
  .brand-logo .site-logo-img {
    height: 24px;
    max-width: 120px;
  }
  .nav-quote-btn {
    padding: 0.32rem 0.45rem;
    font-size: 0.7rem;
  }
  .mobile-menu-toggle {
    width: 34px;
    height: 34px;
  }
}