:root {
  --primary: #81C784;
  --secondary: #64B5F6;
  --accent: #FFB74D;
  --warm: #A1887F;
  --light: #FFFFFF;
  --dark: #263238;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Open Sans', sans-serif;
}

body {
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  color: var(--dark);
  line-height: 1.6;
  padding: 0;
  margin: 0;
  min-height: 100%;
}

.notice {
  position: fixed;
  top: 20px;
  right: 20px;
  background: rgba(255,255,255,0.9);
  padding: 10px 20px;
  border-radius: 30px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  z-index: 1000;
  font-size: 14px;
  backdrop-filter: blur(5px);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 40px;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 40px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 15px rgba(0,0,0,0.05);
  z-index: 999;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav {
  display: flex;
  gap: 30px;
}

.nav a {
  color: var(--dark);
  text-decoration: none;
  font-weight: 600;
  position: relative;
  padding: 5px 0;
  transition: all 0.3s ease;
}

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

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

.hero {
  text-align: center;
  margin-bottom: 80px;
  position: relative;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: fadeIn 1s ease;
}

.hero p {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 40px;
  color: var(--dark);
}

article {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 60px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  margin-bottom: 60px;
}

article h2 {
  font-size: 2.2rem;
  margin-bottom: 30px;
  color: var(--primary);
  position: relative;
  padding-bottom: 15px;
}

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

article h3 {
  font-size: 1.8rem;
  margin: 40px 0 20px;
  color: var(--secondary);
}

article p {
  font-size: 1.1rem;
  margin-bottom: 25px;
  line-height: 1.8;
}

pre {
  background: rgba(0,0,0,0.05);
  padding: 20px;
  border-radius: 10px;
  margin: 30px 0;
  overflow-x: auto;
  border-left: 4px solid var(--accent);
}

code {
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  color: var(--dark);
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
  margin: 40px 0;
}

.image-card {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.image-card img {
  width: 100%;
  height: auto;
  display: block;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 30px 0;
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

th, td {
  padding: 15px;
  text-align: left;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

th {
  background: var(--primary);
  color: white;
  font-weight: 600;
}

tr:hover {
  background: rgba(0,0,0,0.02);
}

.footer {
  text-align: center;
  padding: 30px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  margin-top: 60px;
}

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

@media (max-width: 768px) {
  .container {
    padding: 80px 20px;
  }
  
  article {
    padding: 40px;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .nav {
    gap: 15px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 60px 15px;
  }
  
  article {
    padding: 30px;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .image-grid {
    grid-template-columns: 1fr;
  }
}