/* Unified Navigation and Common Styles */
:root {
  --background: 0 0% 100%;
  --foreground: 222.2 84% 4.9%;
  --card: 0 0% 100%;
  --card-foreground: 222.2 84% 4.9%;
  --primary: 222.2 47.4% 11.2%;
  --primary-foreground: 210 40% 98%;
  --secondary: 210 40% 96.1%;
  --secondary-foreground: 222.2 47.4% 11.2%;
  --muted: 210 40% 96.1%;
  --muted-foreground: 215.4 16.3% 46.9%;
  --accent: 210 40% 96.1%;
  --accent-foreground: 222.2 47.4% 11.2%;
  --border: 214.3 31.8% 91.4%;
  --radius: 0.5rem;
}

.dark {
  --background: 222.2 84% 4.9%;
  --foreground: 210 40% 98%;
  --card: 222.2 84% 4.9%;
  --card-foreground: 210 40% 98%;
  --primary: 210 40% 98%;
  --primary-foreground: 222.2 47.4% 11.2%;
  --secondary: 217.2 32.6% 17.5%;
  --secondary-foreground: 210 40% 98%;
  --muted: 217.2 32.6% 17.5%;
  --muted-foreground: 215 20.2% 65.1%;
  --accent: 217.2 32.6% 17.5%;
  --accent-foreground: 210 40% 98%;
  --border: 217.2 32.6% 17.5%;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  scroll-behavior: smooth;
}

body {
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  transition: background-color 0.3s, color 0.3s;
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Unified Header Styles */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  background-color: hsl(var(--background) / 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid hsl(var(--border) / 0.5);
  z-index: 100;
  transition: all 0.3s ease;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 280px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-right: 1px solid hsl(var(--border) / 0.3);
  z-index: 1000;
  padding: 2rem 0;
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.header.open {
  transform: translateX(0);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: hsl(var(--foreground));
  text-decoration: none;
}

.header .logo {
  padding: 0 2rem;
  margin-bottom: 2rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: hsl(var(--foreground));
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.header .nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0 1rem;
}

.nav > a {
  color: hsl(var(--muted-foreground));
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav > a:hover,
.nav > a.active {
  color: hsl(var(--foreground));
}

.header .nav > a,
.header .dropdown-toggle {
  padding: 0.75rem 1rem;
  color: hsl(var(--muted-foreground));
  text-decoration: none;
  border-radius: var(--radius);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  width: 100%;
  font-size: 1rem;
  cursor: pointer;
}

.header .nav > a:hover,
.header .dropdown-toggle:hover,
.header .nav > a.active {
  background: hsl(var(--accent));
  color: hsl(var(--foreground));
}

/* Dropdown Styles */
.dropdown {
  position: relative;
}

.dropdown-toggle {
  color: hsl(var(--muted-foreground));
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

.dropdown-toggle:hover {
  color: hsl(var(--foreground));
}

.dropdown-toggle i {
  font-size: 0.75rem;
  transition: transform 0.3s;
}

.dropdown:hover .dropdown-toggle i {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  min-width: 200px;
  padding: 0.5rem 0;
  margin-top: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
  z-index: 1000;
}

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

.header .dropdown {
  position: relative;
}

.header .dropdown-menu {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  margin-top: 0.25rem;
  margin-left: 0;
  padding-left: 0;
}

.header .dropdown-menu.show {
  display: flex;
}

.header .dropdown-menu a {
  padding: 0.5rem 1rem;
  color: hsl(var(--muted-foreground));
  text-decoration: none;
  border-radius: var(--radius);
  transition: all 0.3s ease;
  font-size: 0.9rem;
  margin-left: 1rem;
}

.header .dropdown-menu a:hover {
  background: hsl(var(--muted));
  color: hsl(var(--foreground));
}

.theme-toggle {
  background: none;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: hsl(var(--foreground));
  transition: background-color 0.3s;
}

.theme-toggle:hover {
  background-color: hsl(var(--accent));
}

.theme-toggle svg {
  width: 1.2rem;
  height: 1.2rem;
  transition: transform 0.3s, opacity 0.3s;
}

.theme-toggle .sun {
  opacity: 1;
  transform: rotate(0) scale(1);
}

.theme-toggle .moon {
  position: absolute;
  opacity: 0;
  transform: rotate(90deg) scale(0);
}

.dark .theme-toggle .sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0);
}

.dark .theme-toggle .moon {
  opacity: 1;
  transform: rotate(0) scale(1);
}

/* Side Nav Toggle Button */
.side-nav-toggle {
  position: fixed;
  top: 2rem;
  left: 2rem;
  z-index: 1001;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid hsl(var(--border) / 0.3);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  color: hsl(var(--foreground));
  font-size: 1.2rem;
}

.side-nav-toggle:hover {
  background: hsl(var(--accent));
  transform: scale(1.05);
}

/* Hide hamburger when sidebar is open */
.side-nav-toggle.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Overlay */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.nav-overlay.show {
  opacity: 1;
  visibility: visible;
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: hsl(var(--foreground));
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
}

/* Common Button Styles */
.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  border: 2px solid transparent;
}

.button-primary {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border-color: hsl(var(--primary));
}

.button-primary:hover {
  background-color: hsl(var(--primary) / 0.9);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.button-outline {
  background-color: transparent;
  color: hsl(var(--primary));
  border-color: hsl(var(--border));
}

.button-outline:hover {
  background-color: hsl(var(--accent));
  transform: translateY(-2px);
}

/* Common Typography */
h1, h2, h3, h4, h5, h6 {
  color: hsl(var(--foreground));
  font-weight: 600;
  margin-bottom: 1rem;
}

p {
  color: hsl(var(--muted-foreground));
  margin-bottom: 1rem;
}

a {
  color: hsl(var(--primary));
  text-decoration: none;
  transition: opacity 0.3s;
}

a:hover {
  opacity: 0.8;
}

/* Footer */
.footer {
  border-top: 1px solid hsl(var(--border));
  padding: 2rem 0;
  text-align: center;
  color: hsl(var(--muted-foreground));
  background-color: hsl(var(--muted));
  margin-top: auto;
}

/* Dark mode adjustments */
.dark .header {
  background: rgba(15, 15, 15, 0.95);
}

.dark .side-nav-toggle {
  background: rgba(15, 15, 15, 0.95);
}

/* Responsive Design for Side Nav */
@media (max-width: 1024px) {
  .header {
    width: 260px;
  }
}

@media (max-width: 768px) {
  .header {
    width: 280px;
  }

  .side-nav-toggle {
    top: 1.5rem;
    left: 1.5rem;
    width: 45px;
    height: 45px;
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .header {
    width: 260px;
  }

  .side-nav-toggle {
    top: 1rem;
    left: 1rem;
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
}

/* Theme Toggle Styles */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius);
  transition: background-color 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  background-color: hsl(var(--accent));
}

.theme-toggle .icon {
  width: 1.2rem;
  height: 1.2rem;
  transition: transform 0.3s;
}

.dark .theme-toggle .sun {
  display: none;
}

.theme-toggle .moon {
  display: none;
}

.dark .theme-toggle .moon {
  display: block;
}

.dark .theme-toggle .sun {
  display: none;
}

.theme-toggle .sun {
  display: block;
}

/* Technology Logos Cloud */
.tech-cloud {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 10;
  overflow: hidden;
}

.tech-logo {
  position: absolute;
  opacity: 1;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform-origin: center;
  z-index: 10;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) translateX(0px); }
  25% { transform: translateY(-8px) translateX(3px); }
  50% { transform: translateY(0px) translateX(-2px); }
  75% { transform: translateY(5px) translateX(1px); }
}

.tech-logo img {
  width: 180px;
  height: 180px;
  object-fit: contain;
  filter: grayscale(0%) drop-shadow(0 8px 20px rgba(0, 0, 0, 0.3)) brightness(1.1) contrast(1.1) saturate(1.2);
  transition: all 0.3s ease;
  border: none;
  background: transparent;
  mix-blend-mode: multiply;
}

/* Special treatment for logos with white backgrounds */
.tech-logo-1 img,
.tech-logo-10 img {
  mix-blend-mode: screen;
  filter: grayscale(0%) drop-shadow(0 8px 20px rgba(0, 0, 0, 0.3)) brightness(1.1) contrast(1.2) saturate(1.2);
  background: transparent !important;
}

/* Fabric logo - simple approach to remove white background */
.tech-logo-1 img {
  mix-blend-mode: screen;
  filter: grayscale(0%) drop-shadow(0 8px 20px rgba(0, 0, 0, 0.3)) brightness(1.1) contrast(1.1) saturate(1.1);
  background: transparent !important;
}

.tech-logo:hover {
  opacity: 1;
  transform: scale(1.1);
}

.tech-logo:hover img {
  filter: grayscale(0%) drop-shadow(0 12px 32px rgba(0, 0, 0, 0.4)) brightness(1.2) contrast(1.2) saturate(1.3);
}

/* Logos positioned only on the left side (green background area) */
.tech-logo-1 {
  top: 8%;
  left: 12%;
  animation-delay: 0s;
}

/* Microsoft Fabric - larger size */
.tech-logo-1 img {
  width: 220px;
  height: 220px;
}

.tech-logo-2 {
  bottom: 8%;
  left: 30%;
  animation-delay: 1s;
}

/* Snowflake - normal size, moved to bottom right */
.tech-logo-2 img {
  width: 180px;
  height: 180px;
}

.tech-logo-3 {
  top: 8%;
  left: 35%;
  animation-delay: 2s;
}

/* Databricks - much larger, moved to top right */
.tech-logo-3 img {
  width: 299px;
  height: 299px;
}

.tech-logo-4 {
  top: 45%;
  left: 42%;
  animation-delay: 3s;
}

/* Azure - 15% increase, moved away from white area */
.tech-logo-4 img {
  width: 207px;
  height: 207px;
}

.tech-logo-5 {
  bottom: 8%;
  left: 14%;
  animation-delay: 4s;
}

/* Power BI - larger and moved down more */
.tech-logo-5 img {
  width: 230px;
  height: 230px;
}

.tech-logo-6 {
  bottom: 20%;
  left: 40%;
  animation-delay: 5s;
}

/* Copilot - 15% increase, moved further out */
.tech-logo-6 img {
  width: 207px;
  height: 207px;
}

.tech-logo-7 {
  bottom: 35%;
  left: 2%;
  animation-delay: 1.5s;
}

/* Tableau - 15% increase, moved further left */
.tech-logo-7 img {
  width: 207px;
  height: 207px;
}

.tech-logo-8 {
  top: 65%;
  left: 3%;
  animation-delay: 2.5s;
}

/* Purview - 15% increase, moved further out */
.tech-logo-8 img {
  width: 207px;
  height: 207px;
}

.tech-logo-9 {
  top: 28%;
  left: 3%;
  animation-delay: 0.5s;
}

/* OpenAI - normal size */
.tech-logo-9 img {
  width: 180px;
  height: 180px;
}

.tech-logo-10 {
  top: 32%;
  left: 40%;
  animation-delay: 3.5s;
}

/* Microsoft - bigger and moved away from white area */
.tech-logo-10 img {
  width: 200px;
  height: 200px;
}

/* Responsive adjustments for mobile */
@media (max-width: 768px) {
  .tech-logo img {
    width: 120px !important;
    height: 120px !important;
  }
  
  .tech-logo-1 img {
    width: 85px !important;
    height: 85px !important;
  }
  
  .tech-logo-3 img {
    width: 180px !important;
    height: 180px !important;
  }
  
  .tech-logo-4 img,
  .tech-logo-5 img,
  .tech-logo-6 img,
  .tech-logo-7 img,
  .tech-logo-8 img {
    width: 140px !important;
    height: 140px !important;
  }
}