:root {
  --bg-dark: #0a0a14;
  --bg-panel: #12121f;
  --bg-bezel: #1e1e30;
  --accent: #559e4a;
  --accent-bright: #92df87;
  --text-primary: #c5ffff;
  --text-dim: #7e70ca;
  --border-color: #2a2a44;
  --crt-glow: rgba(85, 158, 74, 0.15);
  --btn-bg: #1a1a30;
  --btn-hover: #2a2a50;
  --red: #b66862;
  --yellow: #bdcc71;
  --orange: #a8734a;
}

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

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

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(66, 52, 139, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(85, 158, 74, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

#app {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header#top-bar {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-panel);
}

.title-row {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}

.title-row h1 {
  font-family: 'Silkscreen', cursive;
  font-size: 24px;
  color: var(--accent-bright);
  text-shadow: 0 0 20px var(--crt-glow);
  letter-spacing: 2px;
}

.subtitle {
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 1px;
}

#main-layout {
  display: flex;
  flex: 1;
  gap: 0;
}

#center-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px;
  min-width: 0;
}

#rom-panel {
  width: 100%;
  max-width: 600px;
  margin-bottom: 12px;
}

.rom-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.rom-slot { flex: 1; min-width: 140px; }

.rom-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--btn-bg);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
  justify-content: center;
}

.rom-btn:hover { background: var(--btn-hover); border-color: var(--accent); }
.rom-btn.loaded { border-color: var(--accent); background: rgba(85, 158, 74, 0.1); }

.rom-icon { font-size: 14px; }

.control-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
}

.ctrl-btn {
  padding: 6px 14px;
  background: var(--btn-bg);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.ctrl-btn:hover:not(:disabled) { background: var(--btn-hover); border-color: var(--text-dim); }
.ctrl-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.ctrl-btn.small { padding: 4px 8px; font-size: 11px; }

.power-btn:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent-bright);
  text-shadow: 0 0 8px var(--crt-glow);
}

.power-btn.active {
  background: rgba(85, 158, 74, 0.2);
  box-shadow: 0 0 12px var(--crt-glow);
}

#crt-container {
  width: 100%;
  max-width: 768px;
  display: flex;
  justify-content: center;
}

#crt-bezel {
  position: relative;
  background: #0d0d0d;
  border-radius: 16px;
  padding: 12px;
  box-shadow: 
    inset 0 0 40px rgba(0,0,0,0.8),
    0 0 30px rgba(85, 158, 74, 0.08),
    0 4px 20px rgba(0,0,0,0.6);
  border: 2px solid #222;
}

#canvas {
  display: block;
  width: 100%;
  max-width: 768px;
  height: auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  border-radius: 8px;
}

#scanlines {
  position: absolute;
  inset: 12px;
  border-radius: 8px;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.08) 2px,
    rgba(0, 0, 0, 0.08) 4px
  );
  pointer-events: none;
}

#storage-panel {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
}

.storage-btn {
  padding: 6px 12px;
  background: var(--btn-bg);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.storage-btn:hover { background: var(--btn-hover); border-color: var(--orange); }
.storage-btn.loaded { border-color: var(--yellow); }

#speed-control {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-dim);
}

#speed-slider {
  width: 80px;
  accent-color: var(--accent);
}

#keyboard-map {
  width: 100%;
  max-width: 600px;
  margin-top: 8px;
}

#keyboard-map.hidden { display: none; }

.keymap-content {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 16px;
}

.keymap-content h3 {
  font-family: 'Silkscreen', cursive;
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 8px;
}

.keymap-content table {
  width: 100%;
  font-size: 11px;
  border-collapse: collapse;
}

.keymap-content td {
  padding: 3px 8px;
  border-bottom: 1px solid rgba(42, 42, 68, 0.5);
}

.keymap-content td:first-child {
  color: var(--yellow);
  width: 40%;
}

/* Side Panel */
#side-panel {
  width: 280px;
  background: var(--bg-panel);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: width 0.3s;
}

#side-panel.collapsed { width: 40px; }

.panel-toggle {
  padding: 8px;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-dim);
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  cursor: pointer;
  text-align: left;
}

.panel-toggle:hover { color: var(--text-primary); }

#panel-content {
  padding: 8px;
  overflow-y: auto;
  flex: 1;
}

#panel-content.hidden { display: none; }

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

.panel-section h3 {
  font-family: 'Silkscreen', cursive;
  font-size: 11px;
  color: var(--accent);
  margin-bottom: 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border-color);
}

.panel-section pre {
  font-size: 10px;
  line-height: 1.5;
  color: var(--text-primary);
  background: rgba(0,0,0,0.3);
  padding: 6px;
  border-radius: 4px;
  overflow-x: auto;
  white-space: pre;
}

.mem-controls {
  display: flex;
  gap: 4px;
  margin-bottom: 4px;
}

.mem-controls input {
  flex: 1;
  padding: 4px 6px;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border-color);
  border-radius: 3px;
  color: var(--yellow);
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
}

footer {
  text-align: center;
  padding: 12px;
  border-top: 1px solid var(--border-color);
}

footer a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 12px;
  transition: color 0.2s;
}

footer a:hover { color: var(--accent-bright); }

@media (max-width: 768px) {
  #main-layout { flex-direction: column; }
  
  #side-panel {
    width: 100% !important;
    border-left: none;
    border-top: 1px solid var(--border-color);
  }
  
  .title-row h1 { font-size: 18px; }
  .subtitle { font-size: 9px; }
  
  .rom-row { flex-direction: column; }
  .rom-slot { min-width: unset; }
  
  #crt-bezel { padding: 6px; border-radius: 10px; }
}