:root {
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary-color: #8b5cf6;
  --accent-color: #10b981;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;
  --bg-dark: #0f172a;
  --bg-darker: #020617;
  --bg-card: #1e293b;
  --bg-card-hover: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-color: #334155;
  --code-bg: #1e293b;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);
}

.logo-icon {
  font-size: 1.75rem;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Progress Bar */
.progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(30, 41, 59, 0.3);
  z-index: 2000;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--primary-light));
  background-size: 200% 100%;
  width: 0%;
  transition: width 0.15s cubic-bezier(0.4, 0.0, 0.2, 1);
  animation: gradientShift 3s ease infinite;
  box-shadow: 0 0 8px rgba(99, 102, 241, 0.6);
  will-change: width;
  transform: translateZ(0);
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.nav-menu {
  display: flex;
  gap: 1rem;
  list-style: none;
}

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border-radius: 0.375rem;
  transition: all 0.3s ease;
  font-size: 0.875rem;
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transition: transform 0.3s ease;
  border-radius: 2px;
}

.nav-menu a:hover {
  color: var(--primary-light);
  background: var(--bg-card);
}

.nav-menu a.active {
  color: var(--primary-light);
  background: var(--bg-card);
}

.nav-menu a.active::after {
  transform: translateX(-50%) scaleX(1);
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 2.25rem;
  height: 2.25rem;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
  transition: all 0.2s ease;
  position: absolute;
  right: 0;
  gap: 0.35rem;
}

.hamburger span {
  display: block;
  width: 1.5rem;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero Section */
.hero {
  padding: 5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
  animation: rotate 20s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInDown 1s ease-out;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease-out 0.3s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin: 2rem 0;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.badge {
  padding: 0.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.badge:hover {
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
  animation: fadeInUp 1s ease-out 0.9s both;
}

.btn {
  padding: 0.875rem 2rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

/* Sections */
section {
  padding: 4rem 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-align: center;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.125rem;
  margin-bottom: 3rem;
}

/* Feature Cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: inline-block;
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Code Blocks */
.code-block {
  background: var(--code-bg);
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
  margin: 1.5rem 0;
  position: relative;
  overflow: hidden;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--code-bg);
  position: sticky;
  left: 0;
  top: 0;
  z-index: 1;
}

.code-block pre {
  padding: 1rem 1.5rem;
  overflow-x: auto;
}

.code-lang {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 600;
}

.copy-btn {
  padding: 0.375rem 0.875rem;
  background: var(--bg-card-hover);
  color: var(--text-secondary);
  border: none;
  border-radius: 0.375rem;
  cursor: pointer;
  font-size: 0.875rem;
  transition: all 0.2s ease;
}

.copy-btn:hover {
  background: var(--primary-color);
  color: white;
}

pre {
  margin: 0;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

code {
  font-family: 'Fira Code', 'Consolas', monospace;
  color: var(--primary-light);
}

/* Architecture Diagram */
.diagram-container {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  margin: 2rem 0;
  overflow-x: auto;
}

.mermaid {
  display: flex;
  justify-content: center;
  min-height: 400px;
}

/* Table Styles */
.table-container {
  overflow-x: auto;
  margin: 2rem 0;
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
}

thead {
  background: var(--bg-darker);
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  font-weight: 600;
  color: var(--primary-light);
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

td {
  color: var(--text-secondary);
}

tr:hover {
  background: var(--bg-card-hover);
}

/* Tech Stack */
.tech-stack {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.tech-item {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all 0.3s ease;
}

.tech-item:hover {
  transform: translateY(-5px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lg);
}

.tech-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  display: block;
}

.tech-name {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.tech-description {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* CLI Commands */
.cli-section {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  margin: 2rem 0;
}

.command-group {
  margin-bottom: 2rem;
}

.command-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-light);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.command-item {
  background: var(--code-bg);
  padding: 1rem;
  border-radius: 0.5rem;
  margin-bottom: 0.75rem;
  border-left: 3px solid var(--primary-color);
}

.command-syntax {
  font-family: 'Fira Code', monospace;
  color: var(--accent-color);
  display: block;
  margin-bottom: 0.5rem;
}

.command-desc {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Footer */
footer {
  background: var(--bg-darker);
  border-top: 1px solid var(--border-color);
  padding: 3rem 0 1.5rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  color: var(--text-primary);
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

.footer-section p, .footer-section li {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.8;
}

.footer-section ul {
  list-style: none;
}

.footer-section a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Scroll to top */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--primary-color);
  color: white;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  background: var(--primary-dark);
  transform: translateY(-5px);
}

/* Animations */
.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 1200px) {
  .hamburger {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -250px;
    width: 250px;
    height: 100vh;
    background: var(--bg-darker);
    border-left: 1px solid var(--border-color);
    flex-direction: column;
    gap: 0;
    padding: 4rem 1rem 2rem;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.5);
    transition: right 0.3s ease;
    overflow-y: auto;
    z-index: 1000;
    display: flex !important;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu li {
    width: 100%;
    margin: 0;
  }
  
  .nav-menu a {
    display: block;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    width: 100%;
    border-radius: 0.5rem;
    margin-bottom: 0.25rem;
    transition: all 0.2s ease;
  }
  
  .nav-menu a::after {
    display: none;
  }
  
  .nav-menu a.active {
    background: var(--bg-card);
    color: var(--primary-light);
  }
  
  .nav-menu a:hover {
    background: var(--bg-card);
  }
  
  /* Overlay for mobile menu */
  .nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }
  
  .nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .cta-buttons {
    flex-direction: column;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .tech-stack {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .badges {
    gap: 0.5rem;
  }
  
  .badge {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .section-subtitle {
    font-size: 1rem;
  }
  
  .tech-stack {
    grid-template-columns: 1fr;
  }
  
  .nav-menu {
    width: 220px;
    right: -220px;
  }
}

/* List Styles */
.content-list {
  list-style: none;
  padding-left: 0;
}

.content-list li {
  padding: 0.75rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-secondary);
}

.content-list li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

/* Alert Boxes */
.alert {
  padding: 1rem 1.5rem;
  border-radius: 0.5rem;
  margin: 1rem 0;
  border-left: 4px solid;
}

.alert-info {
  background: rgba(99, 102, 241, 0.1);
  border-color: var(--primary-color);
  color: var(--text-secondary);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--warning-color);
  color: var(--text-secondary);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--accent-color);
  color: var(--text-secondary);
}