/* ==========================================================================
   INTELLIXAPI ULTRA-PREMIUM ENTERPRISE HEADER SYSTEM
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* Enterprise SaaS Intellix Brand Palette */
  --ix-navy: #142B68;
  --ix-blue: #4C84F4;
  --ix-green: #25D366;
  --ix-green-dark: #10B981;
  
  --ix-bg: rgba(255, 255, 255, 0.85);
  --ix-bg-scrolled: rgba(255, 255, 255, 0.95);
  --ix-text-primary: #142B68;
  --ix-text-secondary: #475569;
  --ix-text-muted: #64748B;
  --ix-border: rgba(231, 237, 247, 0.9);
  --ix-border-hover: rgba(76, 132, 244, 0.4);
  
  /* Brand Gradients & Shadows */
  --ix-primary-gradient: linear-gradient(135deg, #25D366 0%, #10B981 100%);
  --ix-primary-gradient-hover: linear-gradient(135deg, #20BD5A 0%, #059669 100%);
  --ix-primary-shadow: 0 8px 24px -4px rgba(37, 211, 102, 0.4);
  --ix-primary-shadow-hover: 0 12px 28px -4px rgba(37, 211, 102, 0.55);
  --ix-primary-text: #FFFFFF;
  
  --ix-hover-bg: rgba(20, 43, 104, 0.04);
  --ix-icon-bg: linear-gradient(135deg, rgba(76, 132, 244, 0.08) 0%, rgba(37, 211, 102, 0.12) 100%);
  --ix-icon-border: rgba(76, 132, 244, 0.15);
  --ix-icon-color: #4C84F4;
  
  /* Typography */
  --ix-font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --ix-font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Dimensions & Radius */
  --ix-header-height: 76px;
  --ix-header-scrolled-height: 64px;
  --ix-radius-sm: 8px;
  --ix-radius-md: 12px;
  --ix-radius-lg: 20px;
  --ix-radius-full: 9999px;
  
  --ix-transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --ix-transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Body Spacing */
body {
  padding-top: var(--ix-header-height);
}

.intellix-header *,
.intellix-header *::before,
.intellix-header *::after {
  box-sizing: border-box;
}

/* Header Main Container - Floating Translucent Glassmorphism */
.intellix-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--ix-header-height);
  background-color: var(--ix-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--ix-border);
  z-index: 1000;
  font-family: var(--ix-font-heading);
  transition: height var(--ix-transition-normal), background-color var(--ix-transition-normal), box-shadow var(--ix-transition-normal), border-color var(--ix-transition-normal);
  will-change: height, background-color, box-shadow;
}

.intellix-header.scrolled {
  height: var(--ix-header-scrolled-height);
  background-color: var(--ix-bg-scrolled);
  box-shadow: 0 10px 30px -10px rgba(20, 43, 104, 0.08);
  border-bottom-color: rgba(203, 213, 225, 0.8);
}

.intellix-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
}

.intellix-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}

/* Brand Logo */
.intellix-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ix-navy);
  font-weight: 800;
  font-size: 1.25rem;
  transition: transform var(--ix-transition-fast), opacity var(--ix-transition-fast);
  z-index: 1001;
  letter-spacing: -0.03em;
  flex-shrink: 0;
}

.intellix-logo:hover {
  transform: translateY(-1px);
  opacity: 0.9;
}

.intellix-logo-img {
  height: 36px;
  width: auto;
  max-width: 170px;
  object-fit: contain;
  display: block;
}

/* Desktop Navigation */
.intellix-nav-desktop {
  display: none;
  height: 100%;
}

@media (min-width: 1024px) {
  .intellix-nav-desktop {
    display: flex;
    align-items: center;
  }
}

.intellix-nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
  height: 100%;
  position: relative;
}

.intellix-nav-item {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  z-index: 1;
}

.intellix-nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  text-decoration: none;
  color: var(--ix-text-secondary);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--ix-radius-full);
  transition: all var(--ix-transition-fast);
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
}

.intellix-nav-link:hover,
.intellix-nav-item:hover .intellix-nav-link,
.intellix-nav-link[aria-expanded="true"] {
  color: var(--ix-navy);
  background-color: var(--ix-hover-bg);
}

.intellix-nav-link svg {
  transition: transform var(--ix-transition-normal);
  opacity: 0.7;
  flex-shrink: 0;
}

.intellix-nav-item:hover .intellix-nav-link svg,
.intellix-nav-item.active .intellix-nav-link svg {
  transform: rotate(180deg);
  opacity: 1;
}

/* World-Class Mega Menu Overlay */
.intellix-mega-menu {
  position: absolute;
  top: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%) translateY(12px) scale(0.97);
  opacity: 0;
  visibility: hidden;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(28px) saturate(200%);
  -webkit-backdrop-filter: blur(28px) saturate(200%);
  border: 1px solid var(--ix-border);
  border-radius: var(--ix-radius-lg);
  box-shadow: 0 24px 48px -12px rgba(20, 43, 104, 0.12);
  padding: 28px;
  width: max-content;
  max-width: 90vw;
  pointer-events: none;
  transition: opacity var(--ix-transition-normal), transform var(--ix-transition-normal), visibility var(--ix-transition-normal);
  z-index: 100;
  transform-origin: top center;
}

.intellix-nav-item:hover .intellix-mega-menu,
.intellix-nav-item.active .intellix-mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0) scale(1);
  pointer-events: auto;
}

.intellix-mega-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}

.intellix-mega-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ix-text-muted);
  font-weight: 700;
  margin: 0 0 14px 0;
}

.intellix-mega-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* Mega Link Card */
.intellix-mega-link-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 12px;
  margin: 0 -12px;
  text-decoration: none;
  border-radius: var(--ix-radius-md);
  transition: all 0.25s ease;
  color: var(--ix-navy);
  border: 1px solid transparent;
}

.intellix-mega-link-card:hover {
  background: #FFFFFF;
  border-color: rgba(76, 132, 244, 0.3);
  box-shadow: 0 8px 20px -6px rgba(20, 43, 104, 0.08);
  transform: translateY(-2px);
}

.intellix-icon-box {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: var(--ix-radius-md);
  background: var(--ix-icon-bg);
  border: 1px solid var(--ix-icon-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ix-icon-color);
  transition: all 0.25s ease;
}

.intellix-mega-link-card:hover .intellix-icon-box {
  background: linear-gradient(135deg, #25D366 0%, #10B981 100%);
  border-color: transparent;
  color: #FFFFFF;
  transform: scale(1.05);
}

.intellix-link-text h4 {
  margin: 0 0 2px 0;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--ix-navy);
}

.intellix-link-text p {
  margin: 0;
  font-size: 0.781rem;
  color: var(--ix-text-slate);
  line-height: 1.4;
  font-weight: 400;
}

.simple-list li a {
  display: block;
  padding: 8px 12px;
  margin: -2px -12px;
  text-decoration: none;
  color: var(--ix-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--ix-radius-md);
  transition: all var(--ix-transition-fast);
}

.simple-list li a:hover {
  background-color: var(--ix-hover-bg);
  color: var(--ix-navy);
  transform: translateX(3px);
}

/* Right Actions & Buttons */
.intellix-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.intellix-demo-btn {
  text-decoration: none;
  color: var(--ix-navy);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 8px 16px;
  border-radius: var(--ix-radius-full);
  border: 1px solid var(--ix-border);
  transition: all var(--ix-transition-fast);
  display: none;
  background: #FFFFFF;
  white-space: nowrap;
}

.intellix-demo-btn:hover {
  background-color: var(--ix-hover-bg);
  border-color: var(--ix-blue);
  color: var(--ix-blue);
  transform: translateY(-1px);
}

.intellix-login-link {
  text-decoration: none;
  color: var(--ix-text-secondary);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 8px 14px;
  border-radius: var(--ix-radius-full);
  transition: all var(--ix-transition-fast);
  display: none;
  white-space: nowrap;
}

.intellix-login-link:hover {
  color: var(--ix-navy);
  background-color: var(--ix-hover-bg);
}

/* Primary Enterprise CTA Button */
.intellix-cta-btn {
  text-decoration: none;
  background: var(--ix-primary-gradient);
  color: var(--ix-primary-text);
  padding: 9px 20px;
  border-radius: var(--ix-radius-full);
  font-weight: 700;
  font-size: 0.875rem;
  transition: all var(--ix-transition-fast);
  box-shadow: var(--ix-primary-shadow);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  border: none;
}

.intellix-cta-btn:hover {
  background: var(--ix-primary-gradient-hover);
  transform: translateY(-2px);
  box-shadow: var(--ix-primary-shadow-hover);
}

@media (min-width: 768px) {
  .intellix-login-link {
    display: inline-flex;
  }
}

@media (min-width: 1180px) {
  .intellix-demo-btn {
    display: inline-flex;
  }

  .intellix-nav-link {
    padding: 8px 16px;
    font-size: 0.9375rem;
  }
}

/* Mobile Toggle Hamburger */
.intellix-mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
  flex-shrink: 0;
}

@media (min-width: 1024px) {
  .intellix-mobile-toggle {
    display: none;
  }
}

.intellix-hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--ix-navy);
  border-radius: 2px;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  transform-origin: left center;
}

.intellix-mobile-toggle.active .intellix-hamburger-line:nth-child(1) {
  transform: rotate(45deg);
}

.intellix-mobile-toggle.active .intellix-hamburger-line:nth-child(2) {
  opacity: 0;
  width: 0;
}

.intellix-mobile-toggle.active .intellix-hamburger-line:nth-child(3) {
  transform: rotate(-45deg);
}

/* Mobile App Drawer Navigation */
.intellix-mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100dvh;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(28px) saturate(200%);
  -webkit-backdrop-filter: blur(28px) saturate(200%);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-16px);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.intellix-mobile-drawer.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.intellix-mobile-drawer-inner {
  padding: 90px 24px 40px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.intellix-mobile-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  flex: 1;
}

.intellix-mobile-nav-item {
  border-bottom: 1px solid var(--ix-border);
}

.intellix-mobile-nav-link,
.intellix-mobile-accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 18px 0;
  background: transparent;
  border: none;
  text-decoration: none;
  color: var(--ix-navy);
  font-size: 1.05rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
}

.intellix-mobile-accordion-trigger svg {
  transition: transform var(--ix-transition-normal);
  opacity: 0.7;
}

.intellix-mobile-accordion-trigger[aria-expanded="true"] svg {
  transform: rotate(180deg);
  opacity: 1;
}

.intellix-mobile-accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.intellix-mobile-sublist {
  list-style: none;
  padding: 0 0 16px 0;
  margin: 0;
}

.intellix-mobile-sublist li a {
  display: block;
  padding: 10px 14px;
  text-decoration: none;
  color: var(--ix-text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--ix-radius-md);
  transition: background-color var(--ix-transition-fast);
}

.intellix-mobile-sublist li a:hover {
  background-color: var(--ix-hover-bg);
  color: var(--ix-navy);
}

.intellix-mobile-footer {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.intellix-mobile-demo,
.intellix-mobile-login,
.intellix-mobile-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 14px;
  border-radius: var(--ix-radius-full);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9375rem;
  text-align: center;
  transition: all var(--ix-transition-fast);
}

.intellix-mobile-demo {
  color: var(--ix-navy);
  background-color: #FFFFFF;
  border: 1px solid var(--ix-border);
}

.intellix-mobile-login {
  color: var(--ix-navy);
  background-color: var(--ix-hover-bg);
  border: 1px solid var(--ix-border);
}

.intellix-mobile-cta {
  color: var(--ix-primary-text);
  background: var(--ix-primary-gradient);
  box-shadow: var(--ix-primary-shadow);
}