:root {
  --primary: #0D1321;
  --secondary: #29ABE2;
  --accent: #FF6F61;
  --text: #FFFFFF;
  --bg-gradient: linear-gradient(135deg, #0D1321 0%, #1A2A3A 50%, #0D1321 100%);
  --card-bg: rgba(13, 19, 33, 0.7);
  --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  background: var(--bg-gradient);
  color: var(--text);
  font-family: 'Montserrat', 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  padding-top: 80px;
}

.header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(13, 19, 33, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid rgba(41, 171, 226, 0.2);
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(to right, var(--secondary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: logoAnimation 1s ease-in-out;
}

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

.nav-links a {
  color: var(--secondary);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
  transition: var(--transition);
}

.nav-links a:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(to right, var(--secondary), var(--accent));
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--accent);
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 5%;
}

.hero {
  text-align: center;
  padding: 4rem 0;
  position: relative;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(to right, var(--secondary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: fadeIn 1s ease-in-out;
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 2rem;
  color: rgba(255, 255, 255, 0.8);
}

.notice {
  background: rgba(255, 111, 97, 0.1);
  border-left: 4px solid var(--accent);
  padding: 1rem;
  margin: 2rem 0;
  border-radius: 0 4px 4px 0;
}

.notice p {
  color: var(--text);
  font-size: 0.9rem;
}

article {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 3rem;
  margin: 3rem 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(5px);
  border: 1px solid rgba(41, 171, 226, 0.1);
}

article h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--secondary);
  position: relative;
  padding-bottom: 0.5rem;
}

article h2:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 3px;
  background: linear-gradient(to right, var(--secondary), var(--accent));
}

article h3 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
  color: var(--accent);
}

article p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  line-height: 1.8;
}

pre {
  background: rgba(13, 19, 33, 0.8);
  border-radius: 8px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  overflow: auto;
  border: 1px solid rgba(41, 171, 226, 0.2);
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
}

code {
  font-family: 'Fira Code', monospace;
  color: #38E54D;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.image-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
}

.image-card img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition);
  border-radius: 12px;
}

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

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

.footer {
  text-align: center;
  padding: 2rem;
  margin-top: 4rem;
  border-top: 1px solid rgba(41, 171, 226, 0.2);
}

.footer p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

@keyframes logoAnimation {
  0% { opacity: 0; transform: scale(0.8); }
  100% { opacity: 1; transform: scale(1); }
}

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

@media (max-width: 768px) {
  .header {
    flex-direction: column;
    padding: 1rem;
  }
  
  .nav-links {
    margin-top: 1rem;
    gap: 1rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  article {
    padding: 2rem;
  }
  
  .image-grid {
    grid-template-columns: 1fr;
  }
}