body {
  margin: 0;
  background: #181d23;
  color: #e7e7e7;
  font-family: 'Fira Mono', monospace;
  overflow-x: hidden;
}

header {
  text-align: center;
  padding: 1rem 0;
  background: #101418;
}

header h1 {
  margin: 0;
  font-size: 1.8rem;
  color: #4fcf58;
}

header a {
  display: inline-block;
  margin-top: 0.5rem;
  text-decoration: none;
  color: #4fcf58;
  font-weight: bold;
  transition: color 0.17s;
}

header a:hover {
  color: #ffe97a;
}

.timeline {
  position: relative;
  margin: 2rem auto;
  padding: 2rem 0;
  width: 90%;
  max-width: 800px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 3px;
  height: 100%;
  background: #4fcf58;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #4fcf58;
  border: 2px solid #101418;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
  z-index: 10;
}

.timeline-dot:hover {
  background: #ffe97a;
  box-shadow: 0 0 6px #ffe97a77;
}

.event {
  position: relative;
  width: 45%;
  padding: 1rem;
  border-radius: 10px;
  background: #101418;
  box-shadow: 0 0 12px #4fcf5877;
  margin-bottom: 2rem;
}

.event.left {
  left: 50%;
  transform: translateX(-105%);
}

.event.right {
  left: 50%;
  transform: translateX(5%);
}

.osint-tag {
  display: inline-block;
  background: #272f37;
  color: #ffe97a;
  padding: 0.3em 0.7em;
  border-radius: 8px;
  font-size: 0.85em;
  margin: 0.2em 0;
  letter-spacing: 0.5px;
  border: 1px solid #ffe97a44;
}

.osint-tag-osint {
  background: #052c01;
  color: #036d26;
  border: 1px solid #0ac41388;
}

.osint-tag-hacking {
  background: #740303;
  color: #ee3110;
  border: 1px solid #df1f0688;
}

.osint-tag-blue-team {
  background: #22324b;
  color: #4fa3ff;
  border: 1px solid #4fa3ff88;
}

.summary {
  font-size: 0.95rem;
  margin: 0.6rem 0 1rem 0;
  color: #e7e7e7;
}

.btn-wu {
  background: none;
  border: 2px solid #4fcf58;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: bold;
  color: #4fcf58;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-wu:hover {
  background: none;
  color: #ffe97a;
  border-color: #ffe97a;
}

.footer {
  text-align: center;
  padding: 1rem 0;
  color: #888;
  font-size: 0.9rem;
  margin-top: 2rem;
}

.terminal-bar {
  position: absolute;
  top: 10px;
  left: 20px;
  font-family: 'Fira Mono', monospace;
  color: #4fcf58;
  background: transparent;
  font-size: 1rem;
  z-index: 1000;
}

.terminal-bar .cursor {
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background-color: #4fcf58;
  margin-left: 5px;
  animation: blink 1s step-end infinite;
  vertical-align: bottom;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@media (max-width: 768px) {
  .timeline {
    padding: 0;
  }

  .timeline::before {
    left: 32px;
    transform: none;
  }

  .timeline-dot {
    left: 26px;
    transform: none;
  }

  .event {
    width: calc(100% - 64px);
    margin-left: 64px;
    margin-bottom: 2.5rem;
    padding: 1rem;
  }

  .event.left,
  .event.right {
    left: auto;
    transform: none;
  }

  header h1 {
    font-size: 1.4rem;
  }

  .summary {
    font-size: 0.9rem;
  }

  .btn-wu {
    width: auto;
    max-width: 100%;
    display: inline-block;
  }

  .terminal-bar {
    display: none;
  }
}