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

:root {
  --green: #33FF33;
  --green-dim: #1a8a1a;
  --green-dark: #0d4d0d;
  --bg: #000000;
  --bezel: #8a8a8a;
  --bezel-dark: #555;
  --panel-bg: #0a0a0a;
  --highlight: #ffff00;
  --rom-bg: #1a0a2a;
  --vram-bg: #0a1a0a;
  --kbd-bg: #1a1a0a;
}

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

#app-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 10px;
}

header {
  text-align: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--green-dark);
  margin-bottom: 10px;
}

header h1 {
  font-family: 'VT323', monospace;
  font-size: 32px;
  letter-spacing: 4px;
  text-shadow: 0 0 10px var(--green), 0 0 20px var(--green-dim);
  color: var(--green);
}

.tagline {
  font-size: 12px;
  color: var(--green-dim);
  margin-top: 2px;
}

#status-bar {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-top: 6px;
  font-size: 13px;
}

#emu-status { font-weight: bold; }
.status-stopped { color: #ff4444; }
.status-running { color: var(--green); animation: pulse 1s infinite; }
.status-paused { color: #ffaa00; }
.status-halted { color: #ff6600; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

#main-layout {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

#display-section { flex: 1; min-width: 0; }

#monitor-bezel {
  background: linear-gradient(135deg, #aaa 0%, #777 30%, #999 60%, #666 100%);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.8), inset 0 1px 0 rgba(255,255,255,0.2);
  position: relative;
  max-width: 810px;
  margin: 0 auto;
}

#screen-container {
  position: relative;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
  border: 3px solid #333;
  box-shadow: inset 0 0 30px rgba(0,0,0,0.8), 0 0 15px rgba(51,255,51,0.1);
}

#canvas {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

#scanlines {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.15) 2px,
    rgba(0,0,0,0.15) 4px
  );
  pointer-events: none;
}

#scanlines.hidden { display: none; }

#crt-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.4) 100%);
  pointer-events: none;
}

#bezel-label {
  text-align: center;
  color: #444;
  font-size: 14px;
  margin-top: 8px;
  letter-spacing: 6px;
  font-weight: bold;
}

#controls {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px 0;
  align-items: center;
  justify-content: center;
}

.ctrl-btn {
  background: linear-gradient(180deg, #444 0%, #222 100%);
  color: var(--green);
  border: 2px solid #555;
  border-radius: 4px;
  padding: 6px 12px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  cursor: pointer;
  text-transform: uppercase;
  box-shadow: 0 2px 4px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.1);
  transition: all 0.1s;
}

.ctrl-btn:hover {
  background: linear-gradient(180deg, #555 0%, #333 100%);
  border-color: var(--green-dim);
}

.ctrl-btn:active {
  transform: translateY(1px);
  box-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.power-btn { border-color: #aa0000; color: #ff4444; }
.power-btn:hover { border-color: #ff4444; }

.small-btn { padding: 4px 8px; font-size: 11px; }

.speed-control, .audio-control {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--green-dim);
}

input[type="range"] {
  width: 80px;
  accent-color: var(--green);
  height: 4px;
}

.toggle-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
}

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

.hex-input {
  background: #111;
  color: var(--green);
  border: 1px solid var(--green-dark);
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  padding: 3px 6px;
  width: 50px;
  text-transform: uppercase;
}

#file-controls {
  padding: 6px 0;
  border-top: 1px solid var(--green-dark);
}

.file-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-bottom: 4px;
  font-size: 12px;
}

.file-btn { font-size: 11px; padding: 4px 10px; }

#load-info {
  font-size: 11px;
  color: var(--green-dim);
}

#side-panels {
  width: 320px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}

.panel {
  background: var(--panel-bg);
  border: 1px solid var(--green-dark);
  border-radius: 4px;
}

.panel-header {
  padding: 6px 10px;
  cursor: pointer;
  font-size: 13px;
  color: var(--green);
  background: #0d0d0d;
  border-bottom: 1px solid var(--green-dark);
  user-select: none;
}

.panel-header:hover { background: #151515; }

.panel-body {
  padding: 6px;
  font-size: 11px;
  max-height: 300px;
  overflow-y: auto;
  display: none;
}

.panel-body.open { display: block; }

.reg-grid {
  display: grid;
  grid-template-columns: auto auto;
  gap: 1px 12px;
}

.reg-row {
  display: flex;
  justify-content: space-between;
  padding: 1px 0;
}

.reg-label { color: var(--green-dim); }
.reg-value { color: var(--green); font-weight: bold; }
.reg-changed { color: var(--highlight) !important; transition: color 0.3s; }

.flag-bits {
  display: flex;
  gap: 3px;
  font-size: 10px;
}

.flag-set { color: var(--green); font-weight: bold; }
.flag-clear { color: #333; }

.reg-section-title {
  color: var(--green-dim);
  font-size: 10px;
  border-bottom: 1px solid var(--green-dark);
  margin-top: 4px;
  padding-bottom: 2px;
}

#disasm-body {
  font-size: 11px;
}

.disasm-line {
  padding: 1px 4px;
  white-space: nowrap;
  cursor: pointer;
}

.disasm-line:hover { background: #1a1a1a; }
.disasm-current { background: var(--green-dark) !important; color: #fff; }
.disasm-breakpoint { border-left: 3px solid #ff4444; }
.disasm-addr { color: var(--green-dim); }
.disasm-bytes { color: #666; }
.disasm-mnemonic { color: var(--green); }

#hex-dump {
  font-size: 10px;
  line-height: 1.4;
  white-space: pre;
  overflow-y: auto;
  max-height: 240px;
}

.mem-nav {
  display: flex;
  gap: 4px;
  align-items: center;
  margin-bottom: 4px;
  font-size: 11px;
}

.mem-row-rom { background: rgba(80,40,120,0.15); }
.mem-row-vram { background: rgba(40,120,40,0.15); }
.mem-row-kbd { background: rgba(120,120,40,0.15); }

#oscilloscope {
  width: 100%;
  height: 60px;
  background: #050505;
  border: 1px solid var(--green-dark);
  border-radius: 2px;
}

footer {
  text-align: center;
  padding: 15px;
  font-size: 11px;
  color: var(--green-dim);
  border-top: 1px solid var(--green-dark);
  margin-top: 10px;
}

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

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

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #0a0a0a; }
::-webkit-scrollbar-thumb { background: var(--green-dark); border-radius: 3px; }

@media (max-width: 900px) {
  #main-layout { flex-direction: column; }
  #side-panels { width: 100%; max-height: none; }
}