/* Modern Networking Theme - 2026 */
:root {
  --primary-bg: #0f172a;    
  --secondary-bg: #1e293b;  
  --accent-color: #3b82f6;   
  --highlight-gold: #ffbd2e; 
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --terminal-black: #000000;
  --card-border: rgba(255, 255, 255, 0.1);
}

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

body {
  background: radial-gradient(circle at top right, #1e293b, #0f172a);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
  line-height: 1.6;
}

/* --- Navigation & Header --- */
nav {
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 15px 0;
  border-bottom: 1px solid var(--card-border);
  text-align: center;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  margin: 0 20px;
  transition: color 0.3s ease;
}

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

header {
  padding: 60px 20px 20px 20px;
  text-align: center;
}

header h1 {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -1.5px;
  background: linear-gradient(to right, #fff, var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
}

header p { color: var(--text-muted); font-size: 1.1rem; }

/* --- Sections & Layout --- */
section, main {
  max-width: 1100px;
  margin: 40px auto;
  padding: 40px;
  background: var(--secondary-bg);
  border-radius: 16px;
  border: 1px solid var(--card-border);
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

h2 {
  color: var(--accent-color);
  border-left: 4px solid var(--accent-color);
  padding-left: 15px;
  margin-bottom: 25px;
  font-size: 1.8rem;
}

/* --- Lab & Feature Cards --- */
.features, .labs, .labs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.card, .lab-item, .lab-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  padding: 25px;
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

/* Scrolling Labs Animation */
.labs-scroll-container {
  overflow: hidden;
  width: 100%;
  mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}

.labs-track {
  display: flex;
  gap: 20px;
  width: max-content;
  animation: scrollLabs 30s linear infinite;
  padding: 10px 0;
}

.labs-track:hover {
  animation-play-state: paused;
}

.lab-item {
  min-width: 280px;
}

.lab-item:hover, .lab-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--accent-color);
}

/* --- Terminal Style Welcome & Code --- */
.terminal {
  background: var(--terminal-black);
  border: 1px solid #334155;
  border-radius: 10px;
  overflow: hidden;
  margin: 20px 0;
}

.terminal-header {
  background: #1e293b;
  padding: 10px 15px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot { width: 12px; height: 12px; border-radius: 50%; }
.red { background: #ff5f56; } .yellow { background: #ffbd2e; } .green { background: #27c93f; }

.terminal-body, pre {
  padding: 20px;
  font-family: 'Fira Code', monospace;
  font-size: 0.9rem;
  color: #d1d5db;
}

.prompt { color: #27c93f; font-weight: bold; }
.command { color: #fff; }
.cursor { display: inline-block; background: var(--accent-color); width: 8px; height: 1.2em; animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

@keyframes scrollLabs {
  to {
    transform: translateX(-50%);
  }
}

/* --- Search Bar --- */
.search-container {
  max-width: 600px;
  margin: 0 auto 30px auto;
}

.search-input {
  width: 100%;
  padding: 12px 20px;
  border-radius: 30px;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  font-size: 1rem;
  outline: none;
  transition: 0.3s;
}

.search-input:focus {
  border-color: var(--accent-color);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.3);
}

/* --- Buttons --- */
.btn, .home-btn, .script-btn {
  background: var(--accent-color);
  color: white !important;
  padding: 10px 20px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  display: inline-block;
  border: none;
  transition: 0.3s;
}

.btn:hover { background: #2563eb; transform: scale(1.05); }

/* --- Footer --- */
footer {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 0.9rem;
}