:root {
  --c64-blue: #4040E0;
  --c64-dark-blue: #2020A0;
  --c64-darker-blue: #1a1a80;
  --c64-light-blue: #A0A0FF;
  --c64-white: #FFFFFF;
  --c64-gray: #8888CC;
  --c64-amber: #FFD866;
  --c64-green: #66FF66;
  --c64-cyan: #66FFFF;
  --c64-red: #FF6666;
  --c64-border: #6060FF;
}

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

body {
  font-family: 'Share Tech Mono', 'Courier New', monospace;
  background-color: var(--c64-blue);
  color: var(--c64-light-blue);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.08) 0px,
    rgba(0, 0, 0, 0.08) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
  z-index: 9999;
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.cursor-blink {
  animation: blink 1s step-end infinite;
  color: var(--c64-light-blue);
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 8px rgba(102, 255, 102, 0.4), inset 0 1px 0 rgba(255,255,255,0.2); }
  50% { box-shadow: 0 0 20px rgba(102, 255, 102, 0.7), inset 0 1px 0 rgba(255,255,255,0.3); }
}

@keyframes glow-pulse-amber {
  0%, 100% { box-shadow: 0 0 8px rgba(255, 216, 102, 0.4), inset 0 1px 0 rgba(255,255,255,0.2); }
  50% { box-shadow: 0 0 20px rgba(255, 216, 102, 0.7), inset 0 1px 0 rgba(255,255,255,0.3); }
}

.btn-retro {
  font-family: 'Share Tech Mono', monospace;
  background: linear-gradient(180deg, #6868FF 0%, #4040C0 50%, #3030A0 100%);
  color: var(--c64-white);
  border: 2px solid var(--c64-border);
  border-radius: 4px;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  transition: all 0.1s;
  box-shadow: 0 3px 0 #1a1a60, 0 4px 8px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.2);
}

.btn-retro:hover {
  background: linear-gradient(180deg, #7878FF 0%, #5050D0 50%, #4040B0 100%);
  transform: translateY(-1px);
  box-shadow: 0 4px 0 #1a1a60, 0 5px 10px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.3);
}

.btn-retro:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 #1a1a60, 0 1px 4px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.1);
}

.btn-retro:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-transpile {
  background: linear-gradient(180deg, #44DD44 0%, #22AA22 50%, #118811 100%);
  border-color: #44FF44;
  animation: glow-pulse 2s ease-in-out infinite;
}

.btn-transpile:hover {
  background: linear-gradient(180deg, #55EE55 0%, #33BB33 50%, #229922 100%);
}

.btn-download {
  background: linear-gradient(180deg, #DDAA33 0%, #BB8811 50%, #996600 100%);
  border-color: #FFD866;
  animation: glow-pulse-amber 3s ease-in-out infinite;
}

.btn-download:hover {
  background: linear-gradient(180deg, #EEBB44 0%, #CC9922 50%, #AA7700 100%);
}

.panel {
  background: var(--c64-dark-blue);
  border: 2px solid var(--c64-border);
  border-radius: 6px;
  box-shadow: inset 0 0 30px rgba(0,0,0,0.3), 0 4px 16px rgba(0,0,0,0.2);
}

.editor-textarea {
  font-family: 'Share Tech Mono', monospace;
  background: transparent;
  color: var(--c64-light-blue);
  border: none;
  outline: none;
  resize: none;
  width: 100%;
  height: 100%;
  font-size: 14px;
  line-height: 1.6;
  padding: 12px;
  caret-color: var(--c64-light-blue);
  tab-size: 2;
}

.editor-textarea::placeholder {
  color: rgba(160, 160, 255, 0.3);
}

.editor-textarea::selection {
  background: rgba(160, 160, 255, 0.3);
}

.editor-textarea.js-editor {
  color: #FFD866;
  caret-color: #FFD866;
}

.basic-output {
  font-family: 'Share Tech Mono', monospace;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--c64-green);
  padding: 12px;
  overflow-y: auto;
}

.hex-view {
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  line-height: 1.5;
  overflow-x: auto;
  white-space: pre;
}

.mapping-table {
  font-size: 11px;
  width: 100%;
}

.mapping-table th {
  color: var(--c64-amber);
  border-bottom: 1px solid var(--c64-border);
  padding: 4px 8px;
  text-align: left;
  position: sticky;
  top: 0;
  background: var(--c64-dark-blue);
}

.mapping-table td {
  padding: 3px 8px;
  border-bottom: 1px solid rgba(96, 96, 255, 0.15);
}

select {
  font-family: 'Share Tech Mono', monospace;
  background: var(--c64-darker-blue);
  color: var(--c64-amber);
  border: 2px solid var(--c64-border);
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23FFD866'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 16px;
  padding-right: 30px;
}

select:focus {
  border-color: var(--c64-amber);
}

input[type="text"] {
  font-family: 'Share Tech Mono', monospace;
  background: var(--c64-darker-blue);
  color: var(--c64-amber);
  border: 2px solid var(--c64-border);
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 13px;
  outline: none;
  width: 80px;
}

input[type="text"]:focus {
  border-color: var(--c64-amber);
}

.status-bar {
  background: var(--c64-darker-blue);
  border-top: 2px solid var(--c64-border);
  padding: 8px 16px;
  font-size: 13px;
}

@keyframes loading-flash {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.loading-anim {
  animation: loading-flash 0.5s ease-in-out infinite;
}

.tab-active {
  background: var(--c64-dark-blue) !important;
  color: var(--c64-white) !important;
  border-bottom-color: var(--c64-dark-blue) !important;
}

.tab-btn {
  font-family: 'Share Tech Mono', monospace;
  background: var(--c64-darker-blue);
  color: var(--c64-gray);
  border: 2px solid var(--c64-border);
  border-bottom: 2px solid var(--c64-border);
  border-radius: 4px 4px 0 0;
  padding: 4px 14px;
  cursor: pointer;
  font-size: 12px;
  margin-right: -2px;
  transition: all 0.1s;
}

.tab-btn:hover {
  color: var(--c64-white);
}

.arrow-icon {
  display: inline-block;
  animation: arrow-bounce 1.5s ease-in-out infinite;
}

@keyframes arrow-bounce {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(6px); }
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--c64-darker-blue);
}

::-webkit-scrollbar-thumb {
  background: var(--c64-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--c64-light-blue);
}

@media (max-width: 767px) {
  .editor-textarea {
    font-size: 12px;
  }
  .hex-view {
    font-size: 10px;
  }
  .btn-retro {
    padding: 6px 10px;
    font-size: 11px;
  }
}