:root {
  --primary-color: #0A192F;
  --secondary-color: #00B4D8;
  --accent-color: #FFB703;
  --text-color: #FFFFFF;
  --card-bg: #1E2A47;
  --gradient-blue: linear-gradient(90deg, #00B4D8, #0A192F);
  --gradient-orange: linear-gradient(45deg, #00B4D8, #FFB703);
  --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: var(--primary-color);
  color: var(--text-color);
  font-family: var(--font-main);
  line-height: 1.6;
  margin: 0;
  padding-top: 80px;
}

.header-notice {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--gradient-blue);
  color: white;
  text-align: center;
  padding: 10px 0;
  z-index: 1001;
  font-size: 14px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.navbar {
  position: fixed;
  top: 40px;
  width: 100%;
  background: rgba(10, 25, 47, 0.9);
  backdrop-filter: blur(10px);
  padding: 15px 5%;
  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: 20px;
}

.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 600;
  padding: 8px 15px;
  border-radius: 20px;
  transition: all 0.3s ease;
  position: relative;
}

.nav-links a:hover {
  color: var(--accent-color);
  background: rgba(255, 183, 3, 0.1);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 60%;
}

.main-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 5%;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 60px;
  padding: 40px 0;
  border-bottom: 1px solid rgba(0, 180, 216, 0.3);
}

.hero-content h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  background: linear-gradient(90deg, #00B4D8, #FFB703);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-content p {
  font-size: 1.1rem;
  margin-bottom: 30px;
}

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

.hero-image img {
  width: 100%;
  max-width: 400px;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 180, 216, 0.3);
  transition: transform 0.5s ease;
}

.hero-image:hover img {
  transform: scale(1.03);
}

.article-container {
  background: rgba(30, 42, 71, 0.5);
  border-radius: 15px;
  padding: 40px;
  margin-bottom: 60px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

article h2 {
  font-size: 1.8rem;
  color: var(--secondary-color);
  margin-top: 40px;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

article h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 3px;
  background: var(--gradient-orange);
}

article h3 {
  font-size: 1.4rem;
  color: var(--accent-color);
  margin-top: 30px;
  margin-bottom: 15px;
}

article p {
  font-size: 1.1rem;
  margin-bottom: 20px;
}

pre {
  background: var(--card-bg);
  border-radius: 8px;
  padding: 20px;
  overflow-x: auto;
  margin: 25px 0;
  border-left: 4px solid var(--secondary-color);
  box-shadow: inset 0 0 10px rgba(0,0,0,0.2);
}

code {
  font-family: 'Courier New', Courier, monospace;
  color: #00B4D8;
}

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

.card {
  background: var(--card-bg);
  border-radius: 15px;
  padding: 25px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
  border: 1px solid rgba(0, 180, 216, 0.2);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 180, 216, 0.2);
  border-color: rgba(0, 180, 216, 0.5);
}

.card img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 20px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.button {
  display: inline-block;
  background: var(--gradient-orange);
  color: white;
  padding: 12px 25px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  margin: 10px 0;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(255, 183, 3, 0.3);
}

.button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(255, 183, 3, 0.4);
}

.neon-line {
  height: 2px;
  background: var(--gradient-orange);
  margin: 40px 0;
  box-shadow: 0 0 10px var(--secondary-color), 0 0 20px var(--accent-color);
}

.footer {
  text-align: center;
  padding: 30px 0;
  margin-top: 60px;
  border-top: 1px solid rgba(0, 180, 216, 0.3);
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .nav-links {
    display: none;
  }
  
  .article-container {
    padding: 25px;
  }
  
  article h2 {
    font-size: 1.5rem;
  }
  
  article h3 {
    font-size: 1.2rem;
  }
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0px); }
}

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