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

:root {
  --green-phosphor: #33ff33;
  --green-dim: #1a8a1a;
  --green-dark: #0d4d0d;
  --amber: #ffaa00;
  --coco-brown: #6b4226;
  --coco-brown-light: #8b5e3c;
  --bg-dark: #111111;
  --bg-panel: #1a1a1a;
  --bg-control: #222222;
  --text-dim: #888888;
  --border-color: #333333;
  --red-btn: #cc3333;
  --yellow-btn: #ccaa33;
}

body {
  background: var(--bg-dark);
  color: var(--green-phosphor);
  font-family: 'VT323', 'Courier New', monospace;
  min-height: 100vh;
  overflow-x: hidden;
}

#app {
  max-width: 900px;
  margin: 0 auto;
  padding: 10px 15px 30px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0 10px;
  border-bottom: 1px solid var(--green-dark);
  margin-bottom: 15px;
}

header h1 {
  font-family: 'Press Start 2P', monospace;
  font-size: 14px;
  color: var(--green-phosphor);
  text-shadow: 0 0 10px rgba(51,255,51,0.5);
  letter-spacing: 1px;
}

.subtitle {
  font-size: 14px;
  color: var(--green-dim);
  margin-top: 6px;
}

.berry-badge {
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  color: var(--amber);
  background: #2a1a0a;
  border: 1px solid var(--coco-brown);
  padding: 5px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

/* TV Frame */
#tv-frame {
  display: flex;
  justify-content: center;
  margin-bottom: 15px;
}

.tv-bezel {
  background: linear-gradient(145deg, #3a2a1a, #2a1a0a);
  border: 3px solid var(--coco-brown);
  border-radius: 18px;
  padding: 20px 24px 12px;
  box-shadow: 0 0 30px rgba(0,0,0,0.8), inset 0 0 20px rgba(0,0,0,0.5);
  position: relative;
}

.tv-screen-area {
  position: relative;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid #111;
  box-shadow: inset 0 0 30px rgba(0,0,0,0.9);
  line-height: 0;
}

#canvas {
  width: 640px;
  height: 480px;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  display: block;
}

.scanlines {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 1px,
    rgba(0,0,0,0.15) 1px,
    rgba(0,0,0,0.15) 2px
  );
  pointer-events: none;
  z-index: 2;
}

.scanlines.disabled { display: none; }

.tv-label {
  text-align: center;
  font-family: 'Press Start 2P', monospace;
  font-size: 9px;
  color: var(--coco-brown-light);
  margin-top: 8px;
  letter-spacing: 3px;
}

/* Controls */
#controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}

.control-group {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 12px;
}

.group-label {
  font-family: 'Press Start 2P', monospace;
  font-size: 8px;
  color: var(--amber);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.cassette-group { grid-column: 1 / -1; }

.cassette-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tape-viz {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
}

.tape-reel {
  color: var(--coco-brown-light);
  transition: transform 0.1s;
}

.tape-reel.spinning {
  animation: spin 0.5s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.tape-status {
  font-size: 12px;
  color: var(--text-dim);
  min-width: 120px;
  text-align: center;
}

.file-info {
  font-size: 12px;
  color: var(--green-dim);
  margin-top: 6px;
  min-height: 16px;
}

/* Buttons */
.btn {
  border: none;
  cursor: pointer;
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  border-radius: 4px;
  transition: all 0.1s;
  padding: 0;
  background: none;
}

.btn .btn-inner {
  display: block;
  padding: 8px 16px;
  border-radius: 4px;
  border: 2px solid rgba(255,255,255,0.1);
  border-bottom-color: rgba(0,0,0,0.3);
  border-right-color: rgba(0,0,0,0.2);
}

.btn:active .btn-inner {
  transform: translateY(1px);
  border-top-color: rgba(0,0,0,0.3);
  border-bottom-color: rgba(255,255,255,0.1);
}

.btn-load { display: inline-block; }
.btn-load .btn-inner {
  background: var(--coco-brown);
  color: #fff;
}

.btn-run .btn-inner { background: #228B22; color: #fff; }
.btn-stop .btn-inner { background: var(--yellow-btn); color: #222; }
.btn-reset .btn-inner { background: var(--red-btn); color: #fff; }
.btn-step .btn-inner { background: #555; color: #ccc; }

.exec-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Speed */
.speed-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.speed-label {
  font-size: 13px;
  color: var(--green-phosphor);
  min-width: 80px;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--border-color);
  border-radius: 3px;
  outline: none;
  flex: 1;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  background: var(--green-phosphor);
  border-radius: 50%;
  cursor: pointer;
}

/* Sound */
.sound-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.speaker-icon { font-size: 18px; }

.vu-meter {
  width: 60px;
  height: 10px;
  background: #111;
  border: 1px solid var(--border-color);
  border-radius: 2px;
  overflow: hidden;
}

.vu-bar {
  height: 100%;
  width: 0%;
  background: var(--green-phosphor);
  transition: width 0.05s;
}

/* Toggles */
.toggle-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.toggle-label {
  font-size: 12px;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
}

.toggle-label input { accent-color: var(--green-phosphor); }

/* Debug Panel */
.debug-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 10px;
}

.debug-panel.hidden { display: none; }

.debug-section {
  margin-bottom: 12px;
}

.debug-section:last-child { margin-bottom: 0; }

.register-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.reg {
  background: #111;
  border: 1px solid var(--border-color);
  padding: 3px 6px;
  border-radius: 3px;
  font-size: 13px;
}

.reg-name {
  color: var(--amber);
  margin-right: 4px;
}

.reg-val {
  color: var(--green-phosphor);
  font-family: 'VT323', monospace;
}

.cc-flags {
  display: block;
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 2px;
  margin-top: 2px;
}

.disasm {
  font-size: 14px;
  color: var(--green-phosphor);
  background: #111;
  padding: 6px 8px;
  border-radius: 3px;
  font-family: 'VT323', monospace;
}

.vdg-status {
  font-size: 13px;
  color: var(--green-dim);
}

.mem-addr-input {
  background: #111;
  border: 1px solid var(--border-color);
  color: var(--green-phosphor);
  font-family: 'VT323', monospace;
  font-size: 13px;
  padding: 2px 5px;
  width: 55px;
  border-radius: 3px;
  margin-left: 8px;
  text-transform: uppercase;
}

.memory-dump {
  font-size: 12px;
  color: var(--green-dim);
  background: #0a0a0a;
  padding: 6px;
  border-radius: 3px;
  font-family: 'VT323', monospace;
  line-height: 1.4;
  max-height: 200px;
  overflow-y: auto;
  white-space: pre;
}

/* Virtual Keyboard */
.virtual-keyboard {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 10px;
}

.virtual-keyboard.hidden { display: none; }

.keyboard-rows {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.kb-row {
  display: flex;
  gap: 3px;
  justify-content: center;
}

.kb-key {
  background: linear-gradient(180deg, #5a3a1a, #3a2210);
  color: #eee;
  border: 1px solid #6b4226;
  border-radius: 3px;
  padding: 5px 7px;
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  cursor: pointer;
  min-width: 28px;
  text-align: center;
  user-select: none;
  transition: background 0.1s;
}

.kb-key:active, .kb-key.active {
  background: linear-gradient(180deg, #8b5e3c, #6b4226);
  transform: translateY(1px);
}

.kb-key.wide { min-width: 60px; }
.kb-key.space { min-width: 180px; }

/* Footer */
footer {
  text-align: center;
  padding: 15px 0;
  border-top: 1px solid var(--border-color);
  margin-top: 15px;
}

.footer-note {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.remix-link {
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  color: var(--amber);
  text-decoration: none;
}

.remix-link:hover {
  color: var(--green-phosphor);
  text-shadow: 0 0 8px rgba(51,255,51,0.5);
}

/* Responsive */
@media (max-width: 700px) {
  #canvas {
    width: 100%;
    height: auto;
  }
  .tv-bezel { padding: 10px 12px 8px; }
  #controls { grid-template-columns: 1fr; }
  header h1 { font-size: 10px; }
  header { flex-direction: column; gap: 8px; text-align: center; }
}