:root {
  --primary: #0D1B2A;
  --secondary: #1B263B;
  --accent: #3282B8;
  --highlight: #00FF7F;
  --text: #E0FDFF;
  --card-bg: rgba(27, 38, 59, 0.8);
}

@font-face {
  font-family: 'Roboto';
  src: url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');
}

body {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--text);
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  min-height: 100%;
}

.header {
  position: relative;
  padding: 3rem 2rem;
  text-align: center;
  background: radial-gradient(circle at center, rgba(50,130,184,0.7) 0%, rgba(27,38,59,0.9) 70%);
  margin-bottom: 3rem;
  border-bottom: 1px solid rgba(224,253,255,0.1);
}

.header h1 {
  font-size: 2.5rem;
  margin: 0;
  background: linear-gradient(90deg, var(--text), var(--highlight));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.notice {
  position: fixed;
  top: 20px;
  right: 20px;
  background: rgba(0,0,0,0.7);
  color: var(--highlight);
  padding: 10px 15px;
  border-radius: 5px;
  font-size: 0.9rem;
  z-index: 1000;
  box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}

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

article {
  background: rgba(13,27,42,0.7);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  padding: 3rem;
  margin: 2rem 0;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

h2 {
  font-size: 2rem;
  color: var(--highlight);
  margin-top: 3rem;
  position: relative;
  padding-bottom: 1rem;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

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

p {
  font-size: 1.1rem;
  margin: 1.5rem 0;
}

.code-container {
  position: relative;
  margin: 2rem 0;
}

pre {
  background: var(--secondary);
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
  border-left: 4px solid var(--highlight);
}

code {
  font-family: 'Roboto Mono', monospace;
  color: var(--text);
  font-size: 0.9rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--card-bg);
  box-shadow: 0 4px 6px rgba(0,0,0,0.2);
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(224,253,255,0.1);
}

th {
  background: rgba(50,130,184,0.3);
  color: var(--highlight);
}

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

.image-card {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.image-card img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s;
}

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

.nav-tabs {
  display: flex;
  flex-wrap: wrap;
  margin: 2rem 0;
  border-bottom: 1px solid rgba(224,253,255,0.1);
}

.nav-tab {
  padding: 0.8rem 1.5rem;
  margin-right: 0.5rem;
  background: var(--secondary);
  color: var(--text);
  border-radius: 5px 5px 0 0;
  cursor: pointer;
  transition: all 0.3s;
}

.nav-tab.active {
  background: var(--accent);
  color: white;
}

.tab-content {
  display: none;
  padding: 2rem;
  background: var(--card-bg);
  border-radius: 0 5px 5px 5px;
  animation: fadeIn 0.5s;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.data-stream {
  width: 100%;
  height: 4px;
  background: linear-gradient(to right, var(--highlight), var(--accent), var(--highlight));
  animation: dataFlow 5s linear infinite;
  margin: 2rem 0;
}

@keyframes dataFlow {
  0% { transform: translateX(-100%); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: translateX(100%); opacity: 0; }
}

.button {
  display: inline-block;
  background: var(--accent);
  color: white;
  padding: 12px 24px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s;
  margin: 1rem 0;
  box-shadow: 0 4px 6px rgba(0,0,0,0.2);
}

.button:hover {
  background: var(--highlight);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.3);
}

.loader {
  border: 8px solid var(--secondary);
  border-top: 8px solid var(--highlight);
  border-radius: 50%;
  width: 60px;
  height: 60px;
  animation: spin 1s linear infinite;
  margin: 2rem auto;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
  
  article {
    padding: 2rem 1rem;
  }
  
  .image-grid {
    grid-template-columns: 1fr;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  h3 {
    font-size: 1.3rem;
  }
}

@media (max-width: 480px) {
  .header {
    padding: 2rem 1rem;
  }
  
  .header h1 {
    font-size: 2rem;
  }
  
  .notice {
    top: 10px;
    right: 10px;
    font-size: 0.8rem;
  }
}