/* ==========================================================================
   NAVIGATION BAR & MOBILE DRAWER SYSTEM (navbar.css)
   thomascherickal.github.io
   Strictly adheres to centralized navigation architecture.
   ========================================================================== */

/* Global Root Mobile & Tablet Safeguards */
html, body {
  max-width: 100%;
  overflow-x: hidden;
  position: relative;
}

img, svg, video, iframe {
  max-width: 100%;
  height: auto;
}

/* Core Desktop Navigation Bar */
nav[aria-label="Main navigation"],
nav:not(.provider-nav-grid) {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  height: 64px;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border, rgba(56, 189, 248, 0.18));
  transition: background 0.3s;
}

.nav-brand {
  font-family: var(--font-mono, monospace);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-secondary, #e2e8f0);
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  transition: opacity 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.nav-brand-logo {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  object-fit: cover;
  display: inline-block;
  flex-shrink: 0;
  border: 1px solid rgba(56, 189, 248, 0.4);
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-brand:hover {
  color: var(--cyan, #38bdf8);
  opacity: 0.95;
  transform: translateY(-1px);
}

.nav-brand:hover .nav-brand-logo {
  transform: scale(1.08);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.5);
}

.nav-right-container {
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 110;
}

/* Checkbox hamburger menu */
.nav-toggle {
  display: none;
}

.nav-toggle-label {
  display: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
  display: block;
  background: var(--text-primary, #ffffff);
  height: 2px;
  width: 22px;
  position: relative;
  transition: all 0.3s ease-in-out;
}

.nav-toggle-label span::before,
.nav-toggle-label span::after {
  content: '';
  position: absolute;
}

.nav-toggle-label span::before {
  top: -6px;
}

.nav-toggle-label span::after {
  top: 6px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  list-style: none;
}

.nav-links a {
  font-family: var(--font-mono, monospace);
  font-size: 0.72rem;
  color: var(--text-secondary, #e2e8f0);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--cyan, #38bdf8);
  transform: scaleX(0);
  transition: transform 0.2s;
}

.nav-links a:hover {
  color: var(--cyan, #38bdf8);
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-links a.active {
  color: var(--gold, #fbbf24);
}

.nav-links a.active::after {
  background: var(--gold, #fbbf24);
  transform: scaleX(1);
}

/* Services & Orchestration Dropdown Submenu Styling */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  cursor: pointer;
  user-select: none;
}

.dropdown-caret {
  font-size: 0.7em;
  margin-left: 3px;
  display: inline-block;
  transition: transform 0.2s ease;
}

.nav-dropdown:hover .dropdown-caret {
  transform: rotate(180deg);
  color: var(--cyan, #38bdf8);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid var(--border-gold, rgba(251, 191, 36, 0.25));
  border-radius: var(--radius-lg, 14px);
  padding: 0.6rem 0;
  min-width: 320px;
  max-width: 90vw;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  list-style: none;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 12px rgba(245, 158, 11, 0.08);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  z-index: 200;
  margin: 0;
}

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

.dropdown-menu li {
  width: 100%;
  list-style: none;
}

.dropdown-menu a {
  display: flex !important;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.1rem !important;
  font-family: var(--font-mono, monospace) !important;
  font-size: 0.75rem !important;
  color: var(--text-secondary, #e2e8f0) !important;
  text-decoration: none !important;
  text-transform: none !important;
  letter-spacing: 0.02em !important;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease;
}

.dropdown-menu a:hover {
  background: rgba(255, 201, 71, 0.14) !important;
  color: var(--gold, #fbbf24) !important;
}

.dropdown-menu a::after {
  display: none !important;
}

.dropdown-header-link {
  font-weight: 700 !important;
  color: var(--gold, #fbbf24) !important;
}

.dropdown-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin: 0.35rem 0;
}

main {
  position: relative;
  z-index: 1;
  padding-top: 64px;
}

/* Prevent iOS Safari automatic zoom on form input focus */
@media (max-width: 768px) {
  input, select, textarea {
    font-size: 16px !important;
  }
}

/* Mobile & Tablet Navigation Drawer (<= 1024px) */
@media (max-width: 1024px) {
  .nav-toggle-label {
    display: flex !important;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    padding: 0.6rem;
    cursor: pointer;
    z-index: 120;
  }

  .nav-toggle-label span,
  .nav-toggle-label span::before,
  .nav-toggle-label span::after {
    display: block;
    background: var(--text-primary);
    height: 2px;
    width: 22px;
    position: relative;
    transition: all 0.3s ease-in-out;
  }

  .nav-toggle-label span::before,
  .nav-toggle-label span::after {
    content: '';
    position: absolute;
  }

  .nav-toggle-label span::before {
    top: -6px;
  }

  .nav-toggle-label span::after {
    top: 6px;
  }

  .nav-links {
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100dvh !important;
    background: rgba(5, 8, 16, 0.98) !important;
    backdrop-filter: blur(24px) !important;
    -webkit-backdrop-filter: blur(24px) !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: flex-start !important;
    gap: 0.85rem !important;
    padding: 5rem 1.25rem 3.5rem !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    overscroll-behavior: contain !important;
    touch-action: pan-y !important;
    z-index: 110 !important;
    transform: translateY(-100%) !important;
    opacity: 0 !important;
    pointer-events: none !important;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease !important;
  }

  .nav-links li {
    width: 100%;
    max-width: 440px;
    text-align: center;
  }

  .nav-links a {
    font-size: 1.15rem !important;
    min-height: 44px;
    padding: 0.6rem 1rem !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100%;
    box-sizing: border-box;
  }

  .nav-dropdown {
    width: 100% !important;
    max-width: 440px !important;
    text-align: center !important;
  }

  .nav-dropdown-toggle {
    cursor: pointer;
    user-select: none;
  }

  .nav-dropdown:hover .dropdown-menu,
  .nav-dropdown:focus-within .dropdown-menu {
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
    display: none !important;
  }

  .nav-dropdown:hover .dropdown-caret {
    transform: rotate(0deg) !important;
  }

  .dropdown-menu {
    display: none !important;
    position: static !important;
    transform: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
    background: rgba(255, 255, 255, 0.03) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: var(--radius) !important;
    box-shadow: none !important;
    margin-top: 0.4rem !important;
    width: 100% !important;
    min-width: 100% !important;
    max-width: 100% !important;
    flex-direction: column !important;
    align-items: center !important;
    max-height: none !important;
    overflow: visible !important;
    padding: 0.5rem 0.25rem !important;
  }

  .dropdown-menu.mobile-hidden {
    display: none !important;
  }

  .nav-dropdown.open .dropdown-menu,
  .nav-dropdown.open:hover .dropdown-menu,
  .nav-dropdown.open:focus-within .dropdown-menu,
  .dropdown-menu.mobile-open {
    display: flex !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
  }

  .nav-dropdown .dropdown-caret {
    transition: transform 0.25s ease;
  }

  .nav-dropdown.open .dropdown-caret,
  .nav-dropdown.open:hover .dropdown-caret {
    transform: rotate(180deg) !important;
    color: var(--cyan, #38bdf8) !important;
  }

  .dropdown-menu li {
    width: 100% !important;
  }

  .dropdown-menu a {
    min-height: 44px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    font-size: 0.84rem !important;
    padding: 0.5rem 0.75rem !important;
    white-space: normal !important;
    line-height: 1.35 !important;
    border-radius: 6px;
  }

  .nav-toggle:checked ~ .nav-links {
    transform: translateY(0) !important;
    opacity: 1 !important;
    pointer-events: auto !important;
  }

  .nav-toggle:checked ~ .nav-right-container .nav-toggle-label span {
    background: transparent !important;
  }

  .nav-toggle:checked ~ .nav-right-container .nav-toggle-label span::before {
    transform: rotate(45deg) !important;
    top: 0 !important;
  }

  .nav-toggle:checked ~ .nav-right-container .nav-toggle-label span::after {
    transform: rotate(-45deg) !important;
    top: 0 !important;
  }
}

/* Collapse empty icon wrappers */
.home-nav-icon:empty,
.service-icon-box:empty,
.role-card-icon:empty,
.collab-icon:empty,
.audience-icon:empty,
.contact-method-icon:empty,
.search-icon-left:empty,
.faq-category-icon:empty,
.tech-cat-title span:empty,
div[style*="font-size:1.8rem"]:empty,
span[style*="font-size:1.4rem"]:empty,
span[style*="font-size:1.8rem"]:empty,
span[style*="font-size: 2.2rem"]:empty,
span[style*="font-size:2.8rem"]:empty {
  display: none !important;
}

.search-icon-left:empty ~ .search-input {
  padding-left: 1.25rem !important;
}