body {
  width: 100vw;
  height: 100vh;
  background: #000;
  overflow: hidden;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
}

/* Left Edge Hover Zone */
.left-hover-zone {
  position: fixed;
  top: 0;
  left: 0;
  width: 15%;
  height: 100vh;
  z-index: 999;
  pointer-events: none;
}

/* Pulse Indicator */
.pulse-indicator {
  position: fixed;
  top: 50%;
  left: 3%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 1.5rem 2rem;
  z-index: 1002;
  animation: pulse 2s infinite;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.pulse-indicator .arrow {
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 300;
  animation: arrowPulse 1.5s infinite;
}

.pulse-indicator .text {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  font-weight: 300;
  letter-spacing: 1px;
  text-transform: uppercase;
}

@keyframes pulse {
  0% {
    transform: translateY(-50%) scale(1);
    opacity: 1;
    background: rgba(0, 0, 0, 0.3);
  }
  50% {
    transform: translateY(-50%) scale(1.02);
    opacity: 0.9;
    background: rgba(0, 0, 0, 0.4);
  }
  100% {
    transform: translateY(-50%) scale(1);
    opacity: 1;
    background: rgba(0, 0, 0, 0.3);
  }
}

@keyframes arrowPulse {
  0% {
    transform: translateX(0);
    opacity: 0.8;
  }
  50% {
    transform: translateX(-5px);
    opacity: 1;
  }
  100% {
    transform: translateX(0);
    opacity: 0.8;
  }
}

/* Pin Button */
.pin-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 6px;
  transition: all 0.3s ease;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pin-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

/* Sidebar */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: 280px;
  height: 100vh;
  background: linear-gradient(180deg, 
    rgba(0, 0, 0, 0.95) 0%, 
    rgba(0, 0, 0, 0.85) 50%, 
    rgba(0, 0, 0, 0.95) 100%);
  backdrop-filter: blur(20px);
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  box-shadow: 4px 0 20px rgba(0, 0, 0, 0.5);
  transform: translateX(-280px);
  opacity: 0;
  transition: transform 0.1s ease, opacity 0.1s ease;
}

.sidebar.open {
  transform: translateX(0);
  opacity: 1;
}

.sidebar.pinned {
  transform: translateX(0);
  opacity: 1;
}

.sidebar-header {
  padding: 2rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  position: relative;
}

.logo {
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-subtitle {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  font-weight: 300;
  margin-top: 0.5rem;
  letter-spacing: 2px;
}

.sidebar-nav {
  flex: 1;
  padding: 1rem 0;
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  margin: 0.5rem 1rem;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  color: rgba(255, 255, 255, 0.8);
  position: relative;
  overflow: hidden;
}

.nav-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.5s ease;
}

.nav-item:hover::before {
  left: 100%;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  transform: translateX(5px);
}

.nav-item.active {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.3) 0%, rgba(118, 75, 162, 0.3) 100%);
  color: #fff;
  border: 1px solid rgba(102, 126, 234, 0.5);
}

.nav-icon {
  font-size: 1.2rem;
  margin-right: 1rem;
  width: 24px;
  text-align: center;
}

.nav-text {
  font-size: 0.95rem;
  font-weight: 500;
}

/* Panel Overlay */
.panel-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  transition: opacity 0.3s ease;
}

.panel-overlay.hidden {
  opacity: 0;
  visibility: hidden;
}

/* Main Content */
.main-content {
  width: 100vw;
  height: 100vh;
  position: relative;
  transition: margin-left 0.3s ease;
}

.main-content.sidebar-pinned {
  margin-left: 280px;
  width: calc(100vw - 280px);
}

/* K3s Panel */
.k3s-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 1000px;
  max-height: 85vh;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  z-index: 999;
  overflow-y: auto;
  transition: all 0.3s ease;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.k3s-panel.hidden {
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, -50%) scale(0.9);
}

.panel-content {
  padding: 2rem;
}

.panel-content h2 {
  color: #fff;
  margin: 0 0 0.5rem 0;
  font-size: 1.8rem;
}

.panel-content p {
  color: #ccc;
  margin: 0 0 2rem 0;
  font-size: 1rem;
}

/* Script Container */
.script-container {
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  margin-bottom: 2rem;
  overflow: hidden;
}

.script-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.script-header h3 {
  color: #fff;
  margin: 0;
  font-size: 1.2rem;
}

.copy-btn {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.copy-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.copy-btn:active {
  transform: translateY(0);
}

/* Copy success animation - specific to each panel */
#k3s-panel .copy-btn.copied,
#docker-panel .copy-btn.copied,
#harbor-panel .copy-btn.copied,
#cert-manager-panel .copy-btn.copied {
  background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
  transform: scale(1.2);
  box-shadow: 0 0 50px rgba(76, 175, 80, 0.8);
  animation: copySuccess 2s ease-out forwards;
}

/* Glass effect overlay - specific to each panel */
#k3s-panel .copy-btn::before,
#docker-panel .copy-btn::before,
#harbor-panel .copy-btn::before,
#cert-manager-panel .copy-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: left 0.5s ease;
}

#k3s-panel .copy-btn.copied::before,
#docker-panel .copy-btn.copied::before,
#harbor-panel .copy-btn.copied::before,
#cert-manager-panel .copy-btn.copied::before {
  left: 100%;
}

/* Ripple effect - specific to each panel */
#k3s-panel .copy-btn::after,
#docker-panel .copy-btn::after,
#harbor-panel .copy-btn::after,
#cert-manager-panel .copy-btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

#k3s-panel .copy-btn.copied::after,
#docker-panel .copy-btn.copied::after,
#harbor-panel .copy-btn.copied::after,
#cert-manager-panel .copy-btn.copied::after {
  width: 300px;
  height: 300px;
}

@keyframes copySuccess {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 rgba(76, 175, 80, 0);
  }
  20% {
    transform: scale(1.3);
    box-shadow: 0 0 30px rgba(76, 175, 80, 0.6);
  }
  40% {
    transform: scale(1.1);
    box-shadow: 0 0 60px rgba(76, 175, 80, 0.8);
  }
  60% {
    transform: scale(1.2);
    box-shadow: 0 0 80px rgba(76, 175, 80, 0.9);
  }
  80% {
    transform: scale(1.05);
    box-shadow: 0 0 100px rgba(76, 175, 80, 0.7);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 rgba(76, 175, 80, 0);
  }
}

.command-content {
  background: #1a1a1a;
  padding: 1.5rem;
  margin: 0;
  border-radius: 0 0 12px 12px;
}

.command-line {
  display: flex;
  align-items: center;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
}

.command-prompt {
  color: #00ff00;
  margin-right: 0.5rem;
  font-weight: bold;
}

.command-text {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  flex: 1;
  word-break: break-all;
}

/* Instructions */
.instructions {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 1.5rem;
}

.instructions h3 {
  color: #fff;
  margin: 0 0 1rem 0;
  font-size: 1.2rem;
}

.instructions ol {
  color: #ffffff;
  margin: 0;
  padding-left: 1.5rem;
}

.instructions li {
  margin-bottom: 0.5rem;
  line-height: 1.5;
  color: #ffffff;
}

.instructions code {
  background: rgba(255, 255, 255, 0.1);
  color: #00ff00;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
}

.warning-box {
  background: rgba(255, 193, 7, 0.1);
  border: 1px solid rgba(255, 193, 7, 0.3);
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1rem;
}

.warning-box h4 {
  color: #ffc107;
  margin: 0 0 0.5rem 0;
  font-size: 1rem;
}

.warning-box ul {
  color: #ffffff;
  margin: 0;
  padding-left: 1.5rem;
}

.warning-box li {
  margin-bottom: 0.25rem;
  font-size: 0.9rem;
  color: #ffffff;
}

/* Background */
.background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, 
    rgba(102, 126, 234, 0.1) 0%, 
    rgba(118, 75, 162, 0.05) 30%, 
    rgba(0, 0, 0, 0.8) 70%, 
    #000 100%);
  z-index: -1;
  overflow: hidden;
}

/* Floating interactive element */
.floating-element {
  position: absolute;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, 
    rgba(118, 75, 162, 0.3) 0%, 
    rgba(102, 126, 234, 0.2) 30%, 
    rgba(118, 75, 162, 0.1) 60%, 
    transparent 100%);
  border-radius: 50%;
  filter: blur(40px);
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: -1;
  animation: float 8s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.6;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 0.8;
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .hamburger-btn {
    top: 0.5rem;
    left: 0.5rem;
    padding: 0.5rem;
  }
  
  .hamburger-line {
    width: 18px;
  }
  
  .sidebar {
    width: 280px;
  }
  
  .k3s-panel {
    width: 95%;
    max-height: 90vh;
  }
  
  .panel-content {
    padding: 1rem;
  }
  
  .script-header {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }
  
  .copy-btn {
    width: 100%;
  }
}