:root {
  --bg-dark: #0a0a1a;
  --bg-panel: #141428;
  --bg-bezel: #1a1a2e;
  --cyan: #85D4DC;
  --green: #92DF87;
  --orange: #A8734A;
  --light-orange: #E9B287;
  --red: #772D26;
  --purple: #A85FB4;
  --blue: #42348B;
  --yellow: #BDCC71;
  --text: #c5ffff;
  --text-dim: #5a7a8a;
  --border: #2a2a4e;
}

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

body {
  background: var(--bg-dark);
  background-image:
    radial-gradient(ellipse at 50% 0%, rgba(133,212,220,0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 100%, rgba(66,52,139,0.08) 0%, transparent 60%);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  min-height: 100vh;
  overflow-x: hidden;
}

#app {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
}

header {
  text-align: center;
  margin-bottom: 20px;
}

header h1 {
  font-family: 'VT323', monospace;
  font-size: 2.6rem;
  color: var(--cyan);
  text-shadow: 0 0 20px rgba(133,212,220,0.4), 0 0 40px rgba(133,212,220,0.15);
  letter-spacing: 2px;
}

.cursor-blink {
  animation: blink 1s step-start infinite;
  color: var(--green);
}

@keyframes blink {
  50% { opacity: 0; }
}

.subtitle {
  font-family: 'VT323', monospace;
  color: var(--text-dim);
  font-size: 1.1rem;
  margin-top: 4px;
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
}

.panel h2, .panel h3 {
  font-family: 'VT323', monospace;
  color: var(--cyan);
  font-size: 1.4rem;
  margin-bottom: 10px;
}

.rom-info {
  color: var(--text-dim);
  font-size: 0.8rem;
  margin-bottom: 16px;
}

.rom-uploads {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.rom-upload {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.rom-upload label {
  font-family: 'VT323', monospace;
  font-size: 1.1rem;
  color: var(--yellow);
}

.rom-file {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.rom-upload input[type="file"] {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text);
}

.rom-status {
  font-family: 'VT323', monospace;
  font-size: 1rem;
}

.rom-status.loaded {
  color: var(--green);
}

.power-button {
  display: block;
  margin: 0 auto;
  padding: 14px 40px;
  font-family: 'VT323', monospace;
  font-size: 1.6rem;
  color: #fff;
  background: linear-gradient(180deg, #c0392b 0%, #8b1a1a 100%);
  border: 3px solid #6b1010;
  border-radius: 12px;
  cursor: pointer;
  text-shadow: 0 2px 4px rgba(0,0,0,0.5);
  box-shadow: 0 4px 15px rgba(192,57,43,0.4), inset 0 1px 0 rgba(255,255,255,0.2);
  transition: all 0.15s;
}

.power-button:disabled {
  background: linear-gradient(180deg, #444 0%, #222 100%);
  border-color: #333;
  color: #666;
  box-shadow: none;
  cursor: not-allowed;
}

.power-button:not(:disabled):hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(192,57,43,0.6), inset 0 1px 0 rgba(255,255,255,0.2);
}

.power-button:not(:disabled):active {
  transform: translateY(2px);
  box-shadow: 0 2px 8px rgba(192,57,43,0.3);
}

.rom-legal {
  text-align: center;
  font-size: 0.65rem;
  color: var(--text-dim);
  margin-top: 14px;
}

.hidden { display: none !important; }

#emulator-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

#monitor-bezel {
  background: #0d0d0d;
  border: 4px solid #2a2a2a;
  border-radius: 16px;
  padding: 16px;
  box-shadow:
    0 0 30px rgba(133,212,220,0.08),
    inset 0 0 60px rgba(0,0,0,0.5);
  position: relative;
}

#canvas {
  display: block;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
  border-radius: 4px;
  width: 768px;
  height: 544px;
}

#canvas.no-borders {
  width: 640px;
  height: 400px;
}

#canvas.crt-on {
  border-radius: 12px;
  filter: contrast(1.05) brightness(1.02);
}

#status-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-family: 'VT323', monospace;
  font-size: 1rem;
}

.led-off, .led-on, .led-pause {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.1);
}

.led-off { background: #333; }
.led-on { background: var(--green); box-shadow: 0 0 8px var(--green); }
.led-pause { background: var(--orange); box-shadow: 0 0 8px var(--orange); }

#fps-display {
  margin-left: auto;
  color: var(--text-dim);
  font-size: 0.9rem;
}

#control-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  max-width: 768px;
}

.ctrl-btn {
  font-family: 'VT323', monospace;
  font-size: 1rem;
  padding: 6px 12px;
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.1s;
}

.ctrl-btn:hover {
  background: rgba(133,212,220,0.1);
  border-color: var(--cyan);
}

.ctrl-btn.active {
  background: rgba(146,223,135,0.15);
  border-color: var(--green);
  color: var(--green);
}

.small-btn {
  font-family: 'VT323', monospace;
  font-size: 0.9rem;
  padding: 3px 8px;
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 3px;
  cursor: pointer;
}

.small-btn:hover {
  border-color: var(--cyan);
}

.small-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.panel-toggle {
  cursor: pointer;
  user-select: none;
}

.collapsed .panel-content {
  display: none;
}

.storage-device {
  padding: 12px;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 10px;
}

.storage-device h4 {
  font-family: 'VT323', monospace;
  color: var(--yellow);
  margin-bottom: 8px;
}

.storage-device input[type="file"] {
  font-size: 0.7rem;
  color: var(--text);
  margin-bottom: 6px;
}

.tape-controls {
  display: flex;
  gap: 4px;
  margin-top: 6px;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
  margin-left: 8px;
}

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

#tape-reels {
  display: flex;
  gap: 40px;
  justify-content: center;
  margin-top: 8px;
}

.reel {
  width: 30px;
  height: 30px;
  border: 2px solid var(--text-dim);
  border-radius: 50%;
  position: relative;
}

.reel::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  background: var(--text-dim);
  border-radius: 50%;
  transform: translate(-50%,-50%);
}

.reel.spinning {
  animation: spin 1s linear infinite;
}

#keyboard-overlay {
  width: 100%;
  max-width: 768px;
}

#vic-keyboard {
  display: grid;
  gap: 3px;
  padding: 12px;
  background: #3a2a1a;
  border-radius: 10px;
  border: 2px solid #5a4a3a;
}

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

.kb-key {
  font-family: 'VT323', monospace;
  font-size: 0.75rem;
  padding: 4px 6px;
  min-width: 36px;
  text-align: center;
  background: linear-gradient(180deg, #d4c4a4 0%, #b4a484 100%);
  color: #2a1a0a;
  border: 1px solid #8a7a6a;
  border-radius: 4px;
  cursor: pointer;
  user-select: none;
  line-height: 1.1;
  transition: all 0.08s;
}

.kb-key:active, .kb-key.pressed {
  background: linear-gradient(180deg, #a4946a 0%, #847454 100%);
  transform: translateY(1px);
}

.kb-key .modern {
  display: block;
  font-size: 0.55rem;
  color: #6a5a4a;
}

.kb-key.wide { min-width: 60px; }
.kb-key.wider { min-width: 80px; }
.kb-key.space { min-width: 200px; }

#debug-panel {
  max-width: 768px;
  width: 100%;
}

.debug-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.debug-section {
  background: rgba(0,0,0,0.3);
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
}

.debug-section h4 {
  font-family: 'VT323', monospace;
  color: var(--yellow);
  font-size: 1rem;
  margin-bottom: 6px;
}

.debug-mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--green);
  white-space: pre;
  overflow-x: auto;
  line-height: 1.4;
}

.mem-controls, .debug-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 6px;
  font-size: 0.75rem;
}

.hex-input {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  width: 50px;
  padding: 2px 4px;
  background: rgba(0,0,0,0.4);
  color: var(--cyan);
  border: 1px solid var(--border);
  border-radius: 3px;
  text-transform: uppercase;
}

footer {
  text-align: center;
  margin-top: 30px;
  padding: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-dim);
}

footer a {
  color: var(--cyan);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

footer p {
  margin-bottom: 4px;
}

#scanlines-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  z-index: 1000;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.08) 2px,
    rgba(0,0,0,0.08) 4px
  );
}

@media (max-width: 820px) {
  #canvas {
    width: 100%;
    height: auto;
  }
  #canvas.no-borders {
    width: 100%;
    height: auto;
  }
  .debug-grid {
    grid-template-columns: 1fr;
  }
  #control-bar {
    max-width: 100%;
  }
  .kb-key {
    min-width: 28px;
    font-size: 0.6rem;
    padding: 3px 4px;
  }
  .kb-key.space { min-width: 120px; }
}