/* Base Styles */
:root {
  --primary: #0d47a1;
  --secondary: #42a5f5;
  --accent: #8e24aa;
  --light: #ffffff;
  --dark: #1e3c72;
  --text: #f5f5f5;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
  background-size: 600% 600%;
  animation: gradientAnimation 15s ease infinite;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  line-height: 1.6;
  min-height: 100%;
  overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3, h4 {
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

h2 {
  font-size: 2.2rem;
  color: var(--light);
  position: relative;
  padding-bottom: 1rem;
  margin-top: 3rem;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  border-radius: 2px;
}

h3 {
  font-size: 1.8rem;
  margin-top: 2.5rem;
  color: var(--secondary);
}

p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  max-width: 800px;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 4rem 0;
  position: relative;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(13, 71, 161, 0.95);
  backdrop-filter: blur(10px);
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--light);
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  position: relative;
  padding: 0.5rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--secondary);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--light);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 30px;
  height: 30px;
  background: var(--secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(66,165,245,0.1) 0%, rgba(13,71,161,0) 70%);
  z-index: -1;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  background: linear-gradient(90deg, var(--light), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: fadeInUp 1s ease;
}

.hero p {
  font-size: 1.3rem;
  max-width: 700px;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeInUp 1s ease 0.3s forwards;
}

.hero-image {
  width: 300px;
  height: 300px;
  border-radius: 20px;
  object-fit: cover;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  margin-top: 3rem;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease 0.6s forwards;
  border: 3px solid rgba(255,255,255,0.1);
}

/* Content Sections */
.content-block {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 3rem;
  margin: 3rem 0;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  border: 1px solid rgba(255,255,255,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.content-block:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

/* Code Blocks */
pre {
  background: rgba(30,60,114,0.8);
  border-radius: 10px;
  padding: 1.5rem;
  margin: 2rem 0;
  overflow-x: auto;
  box-shadow: inset 0 0 10px rgba(0,0,0,0.3);
  border-left: 4px solid var(--secondary);
}

code {
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  color: #f8f8f2;
  white-space: pre;
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.card {
  background: rgba(255,255,255,0.1);
  border-radius: 15px;
  padding: 2rem;
  transition: all 0.3s ease;
  border: 1px solid rgba(255,255,255,0.1);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(66,165,245,0.1), rgba(142,36,170,0.1));
  z-index: -1;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.3);
  background: rgba(255,255,255,0.15);
}

.card img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 1.5rem;
  transition: transform 0.3s ease;
}

.card:hover img {
  transform: scale(1.05);
}

/* Floating Elements */
.floating-elements {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.floating-element {
  position: absolute;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  animation: float 15s infinite linear;
}

@keyframes float {
  0% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-50px) rotate(180deg); }
  100% { transform: translateY(0) rotate(360deg); }
}

/* Footer */
.footer {
  text-align: center;
  padding: 3rem 0;
  margin-top: 5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer p {
  margin: 0 auto;
  font-size: 0.9rem;
  opacity: 0.7;
}

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

/* Responsive */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    padding: 1rem;
  }
  
  .nav-links {
    margin-top: 1rem;
    gap: 1rem;
  }
  
  h1 {
    font-size: 2.5rem;
  }
  
  .hero p {
    font-size: 1.1rem;
  }
  
  .content-block {
    padding: 2rem;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  h3 {
    font-size: 1.5rem;
  }
  
  pre {
    padding: 1rem;
    font-size: 0.8rem;
  }
}