:root {
  --bg-primary: #0a0e14;
  --bg-secondary: #0d1117;
  --bg-tertiary: #161b22;
  --bg-hover: #1c2333;
  --green: #00ff41;
  --green-dim: #00cc33;
  --green-dark: #003d10;
  --cyan: #00d4ff;
  --cyan-dim: #0099bb;
  --orange: #ff9500;
  --red: #ff3b3b;
  --purple: #bf5af2;
  --yellow: #ffd60a;
  --text-primary: #c9d1d9;
  --text-secondary: #8b949e;
  --text-dim: #484f58;
  --border: #21262d;
  --highlight-bg: rgba(0, 255, 65, 0.08);
}

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

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  overflow: hidden;
  height: 100vh;
}

#root {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-dim);
}

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

@keyframes pulse-glow {
  0%, 100% { 
    border-color: var(--green-dim);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.1);
  }
  50% { 
    border-color: var(--green);
    box-shadow: 0 0 40px rgba(0, 255, 65, 0.2), 0 0 80px rgba(0, 255, 65, 0.05);
  }
}

@keyframes scanline {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.blink-cursor {
  animation: blink 1s step-end infinite;
}

.drop-zone {
  animation: pulse-glow 3s ease-in-out infinite;
}

.scanline::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 65, 0.15), transparent);
  animation: scanline 8s linear infinite;
  pointer-events: none;
}

.hex-row:hover {
  background: var(--highlight-bg);
}

.hex-byte {
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.1s;
}

.hex-byte:hover {
  background: rgba(0, 212, 255, 0.2);
  color: var(--cyan);
}

.hex-byte.highlighted {
  background: rgba(0, 255, 65, 0.15);
  color: var(--green);
}

.hex-byte.selected {
  background: rgba(0, 212, 255, 0.3);
  color: #fff;
}

.magic-byte {
  border-radius: 2px;
}

.label-flag {
  position: relative;
  cursor: pointer;
}

.label-flag::before {
  content: '▶';
  font-size: 8px;
  position: absolute;
  left: -12px;
  top: 50%;
  transform: translateY(-50%);
}

.toolbar-input {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 4px;
  outline: none;
  transition: border-color 0.2s;
}

.toolbar-input:focus {
  border-color: var(--green-dim);
}

.toolbar-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.toolbar-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--green-dim);
}

.toolbar-btn.active {
  background: var(--green-dark);
  color: var(--green);
  border-color: var(--green-dim);
}

.panel-section {
  border-bottom: 1px solid var(--border);
  padding: 12px;
}

.label-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px;
  margin-bottom: 6px;
  cursor: pointer;
  transition: all 0.15s;
}

.label-item:hover {
  border-color: var(--green-dim);
  background: var(--bg-hover);
}

.bg-grid {
  background-image: 
    linear-gradient(rgba(0, 255, 65, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 65, 0.03) 1px, transparent 1px);
  background-size: 20px 20px;
}

.fade-in {
  animation: fadeIn 0.3s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.3s ease-out;
}

input[type="color"] {
  -webkit-appearance: none;
  border: none;
  width: 20px;
  height: 20px;
  cursor: pointer;
  border-radius: 3px;
  padding: 0;
}
input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}
input[type="color"]::-webkit-color-swatch {
  border: 1px solid var(--border);
  border-radius: 3px;
}