:root {
  --primary: #1E213A;
  --secondary: #56CCF2;
  --accent: #2EDD7E;
  --text: #FFFFFF;
  --bg-dark: #0F111F;
  --card-bg: #2B2F4C;
}

@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500&family=Poppins:wght@600;700&display=swap');

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

body {
  background: radial-gradient(circle at 10% 20%, var(--primary), var(--bg-dark));
  color: var(--text);
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  min-height: 100%;
  overflow-x: hidden;
}

header {
  background: rgba(30, 33, 58, 0.9);
  backdrop-filter: blur(10px);
  padding: 1rem 2rem;
  position: fixed;
  width: 100%;
  z-index: 100;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid rgba(86, 204, 242, 0.2);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  background: linear-gradient(45deg, var(--secondary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 10px rgba(86, 204, 242, 0.3);
}

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

.nav-item {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  position: relative;
  transition: all 0.3s ease;
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  transition: width 0.3s ease;
}

.nav-item:hover {
  color: var(--secondary);
}

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

.notice {
  background: rgba(46, 221, 126, 0.1);
  border-left: 4px solid var(--accent);
  padding: 1rem;
  margin: 1rem 0;
  border-radius: 0 4px 4px 0;
  font-size: 0.9rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 6rem 2rem 2rem;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 4rem;
}

.hero-content h1 {
  font-family: 'Poppins', sans-serif;
  font-size: 2.5rem;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, var(--secondary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-content p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 2rem;
}

.hero-image {
  position: relative;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image img {
  width: 100%;
  max-width: 400px;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  transform: perspective(1000px) rotateY(10deg);
  transition: transform 0.5s ease;
}

.hero-image:hover img {
  transform: perspective(1000px) rotateY(0deg);
}

article {
  background: rgba(43, 47, 76, 0.6);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 2rem;
  margin-bottom: 3rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(86, 204, 242, 0.1);
}

article h2 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--secondary);
  position: relative;
  padding-bottom: 0.5rem;
}

article h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--secondary), var(--accent));
}

article h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.4rem;
  margin: 1.5rem 0 1rem;
  color: var(--accent);
}

article p {
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

pre {
  background: rgba(15, 17, 31, 0.8);
  border-radius: 8px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  overflow: auto;
  border-left: 4px solid var(--secondary);
  font-family: 'Roboto Mono', monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  position: relative;
}

pre::before {
  content: 'CSS';
  position: absolute;
  top: 0;
  left: 0;
  background: var(--secondary);
  color: var(--primary);
  padding: 0.2rem 0.8rem;
  font-size: 0.8rem;
  border-radius: 0 0 4px 0;
  font-weight: bold;
}

code {
  font-family: 'Roboto Mono', monospace;
  background: rgba(86, 204, 242, 0.1);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  color: var(--secondary);
  font-size: 0.9rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: rgba(43, 47, 76, 0.5);
  border-radius: 8px;
  overflow: hidden;
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(86, 204, 242, 0.1);
}

th {
  background: rgba(86, 204, 242, 0.1);
  color: var(--secondary);
  font-weight: 500;
}

tr:hover {
  background: rgba(86, 204, 242, 0.05);
}

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

.card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 1.5rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(86, 204, 242, 0.1);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.card h3 {
  color: var(--secondary);
  margin-bottom: 1rem;
  font-family: 'Poppins', sans-serif;
}

.card p {
  opacity: 0.8;
}

.card-image {
  width: 100%;
  height: 200px;
  border-radius: 8px;
  object-fit: cover;
  margin-bottom: 1rem;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.footer {
  text-align: center;
  padding: 2rem;
  margin-top: 3rem;
  border-top: 1px solid rgba(86, 204, 242, 0.1);
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .nav-menu {
    display: none;
  }
  
  article {
    padding: 1.5rem;
  }
  
  pre {
    padding: 1rem;
    font-size: 0.8rem;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.floating {
  animation: float 3s ease-in-out infinite;
}

.glow {
  filter: drop-shadow(0 0 10px rgba(86, 204, 242, 0.5));
}