/* === Global Variables - Red, Black & White Modern Theme === */
:root {
  --primary-red: #dc2626;
  --primary-red-dark: #b91c1c;
  --primary-red-light: #ef4444;
  --black: #000000;
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  --accent: var(--primary-red);
  --accent-hover: var(--primary-red-dark);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius: 12px;
  --border-radius-lg: 16px;
}

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

/* === Modern AI Style Typography === */
body {
  font-family: 'Inter', 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--white);
  color: var(--black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.container {
  max-width: 1200px;
  width: 92%;
  margin: 0 auto;
}

/* === Enhanced Header === */
header {
  background: var(--black);
  color: var(--white);
  padding: 0;
  border-bottom: 1px solid var(--gray-800);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  background: rgba(0, 0, 0, 0.98);
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--white);
  font-weight: 700;
  font-size: 1.5rem;
  font-family: 'Space Grotesk', sans-serif;
}

.logo img {
  height: 32px;
  margin-right: 0.5rem;
}

.logo-text {
  background: linear-gradient(135deg, var(--white) 0%, var(--primary-red) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Desktop Navigation */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-dropdown {
  position: relative;
}

.nav-link {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 0;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-family: 'Inter', sans-serif;
}

.nav-link:hover {
  color: var(--primary-red-light);
}

.dropdown-content {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius);
  padding: 0.5rem 0;
  min-width: 200px;
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition);
  z-index: 1000;
}

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

.dropdown-content a {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--gray-700);
  text-decoration: none;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}

.dropdown-content a:hover {
  background: var(--gray-50);
  color: var(--primary-red);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  gap: 4px;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
}

/* Mobile Sidebar */
.mobile-sidebar {
  position: fixed;
  top: 0;
  right: -100%;
  width: 320px;
  height: 100vh;
  background: var(--white);
  box-shadow: var(--shadow-xl);
  transition: var(--transition);
  z-index: 1001;
  display: flex;
  flex-direction: column;
}

.mobile-sidebar.active {
  right: 0;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid var(--gray-200);
  background: var(--black);
}

.sidebar-close {
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.25rem;
  cursor: pointer;
}

.mobile-nav {
  flex: 1;
  padding: 1rem 0;
  overflow-y: auto;
}

.mobile-nav-section {
  border-bottom: 1px solid var(--gray-200);
}

.mobile-dropdown-btn {
  width: 100%;
  padding: 1rem 1.5rem;
  background: none;
  border: none;
  text-align: left;
  color: var(--black);
  font-weight: 500;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
}

.mobile-dropdown-btn:hover {
  background: var(--gray-50);
  color: var(--primary-red);
}

.mobile-dropdown-btn.active {
  color: var(--primary-red);
}

.mobile-dropdown-content {
  display: none;
  background: var(--gray-50);
}

.mobile-dropdown-content.active {
  display: block;
}

.mobile-dropdown-content a {
  display: block;
  padding: 0.75rem 2rem;
  color: var(--gray-700);
  text-decoration: none;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}

.mobile-dropdown-content a:hover {
  background: var(--gray-100);
  color: var(--primary-red);
}

.mobile-nav-link {
  display: block;
  padding: 1rem 1.5rem;
  color: var(--black);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}

.mobile-nav-link:hover {
  background: var(--gray-50);
  color: var(--primary-red);
}

.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 1000;
}

.sidebar-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Main Content */
.main-content {
  min-height: calc(100vh - 80px);
}

/* Responsive Design */
@media (max-width: 768px) {
  .desktop-nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  header .container {
    padding: 0.75rem 0;
  }
}

/* Smooth scroll */
html {
  scroll-behavior: smooth;
}