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

:root {
  --bg: #0a0a0a;
  --bg2: #111;
  --green: #33ff33;
  --amber: #ffaa00;
  --dim-green: #1a7a1a;
  --red: #ff3333;
  --blue: #4444cc;
  --tms-blue: #5955E0;
  --panel-bg: #0d0d0d;
  --border: #222;
  --text: #ccc;
  --text-dim: #666;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  min-height: 100vh;
  overflow-x: hidden;
}

#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
header {
  text-align: center;
  padding: 20px 10px 10px;
  background: linear-gradient(180deg, #111 0%, #0a0a0a 100%);
  border-bottom: 1px solid var(--border);
}

.title-glow {
  font-family: 'Press Start 2P', monospace;
  font-size: 24px;
  color: var(--green);
  text-shadow: 0 0 10px var(--green), 0 0 30px var(--green), 0 0 60px rgba(51,255,51,0.3);
  letter-spacing: 2px;
  animation: titlePulse 3s ease-in-out infinite;
}

@keyframes titlePulse {
  0%, 100% { text-shadow: 0 0 10px var(--green), 0 0 30px var(--green); }
  50% { text-shadow: 0 0 15px var(--green), 0 0 40px var(--green), 0 0 80px rgba(51,255,51,0.4); }
}

.subtitle {
  font-size: 10px;
  color: var(--amber);
  margin-top: 8px;
  letter-spacing: 1px;
  opacity: 0.8;
}

/* Main Layout */
#main-layout {
  display: flex;
  flex: 1;
  gap: 0;
  justify-content: center;
  padding: 15px;
}

#screen-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* ROM Loader */
.rom-loader {
  width: 100%;
  max-width: 540px;
}

.drop-zone {
  border: 2px dashed var(--dim-green);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  background: rgba(51,255,51,0.02);
  transition: all 0.3s;
  cursor: pointer;
}

.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--green);
  background: rgba(51,255,51,0.06);
  box-shadow: 0 0 20px rgba(51,255,51,0.1);
}

.cartridge-icon {
  font-size: 32px;
  margin-bottom: 8px;
  filter: grayscale(0.5);
}

.drop-text {
  font-size: 12px;
  color: var(--green);
  margin-bottom: 10px;
}

.drop-sub {
  font-size: 10px;
  color: var(--text-dim);
}

.retro-btn {
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  padding: 8px 20px;
  background: linear-gradient(180deg, #333 0%, #1a1a1a 100%);
  color: var(--green);
  border: 2px solid #444;
  border-radius: 4px;
  cursor: pointer;
  box-shadow: 0 3px 0 #000, inset 0 1px 0 rgba(255,255,255,0.1);
  transition: all 0.1s;
}

.retro-btn:hover { background: linear-gradient(180deg, #444 0%, #222 100%); }
.retro-btn:active { transform: translateY(2px); box-shadow: 0 1px 0 #000; }

.rom-info {
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px;
  margin-top: 8px;
  font-size: 11px;
  color: var(--green);
}

.rom-info .rom-hex {
  font-size: 10px;
  color: var(--text-dim);
  word-break: break-all;
  margin-top: 4px;
}

.demo-roms {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.demo-label {
  font-size: 10px;
  color: var(--text-dim);
}

.demo-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  padding: 4px 10px;
  background: #1a1a1a;
  color: var(--amber);
  border: 1px solid #333;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s;
}

.demo-btn:hover {
  background: #222;
  border-color: var(--amber);
}

/* CRT Screen */
#crt-bezel {
  background: linear-gradient(145deg, #2a2a2a 0%, #1a1a1a 30%, #111 100%);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.8), inset 0 1px 0 rgba(255,255,255,0.05);
  position: relative;
  border: 2px solid #333;
}

#crt-screen {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 0 30px rgba(89,85,224,0.2), inset 0 0 20px rgba(0,0,0,0.3);
  background: #000;
}

#canvas {
  display: block;
  width: 512px;
  height: 384px;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  border-radius: 8px;
}

.scanlines {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  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;
  border-radius: 8px;
}

.crt-glow {
  position: absolute;
  top: -2px; left: -2px; right: -2px; bottom: -2px;
  border-radius: 10px;
  box-shadow: inset 0 0 40px rgba(89,85,224,0.08);
  pointer-events: none;
}

.bezel-badge {
  position: absolute;
  bottom: 4px;
  right: 16px;
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  color: #555;
  letter-spacing: 1px;
}

/* Controls */
.controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 540px;
}

.ctrl-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  padding: 6px 12px;
  background: linear-gradient(180deg, #2a2a2a, #1a1a1a);
  color: var(--green);
  border: 1px solid #444;
  border-radius: 4px;
  cursor: pointer;
  box-shadow: 0 2px 0 #000;
  transition: all 0.1s;
  min-width: 36px;
  text-align: center;
}

.ctrl-btn:hover { background: linear-gradient(180deg, #3a3a3a, #222); }
.ctrl-btn:active { transform: translateY(1px); box-shadow: none; }
.ctrl-btn.active { color: var(--amber); border-color: var(--amber); box-shadow: 0 0 8px rgba(255,170,0,0.3); }

.ctrl-select {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  padding: 4px 8px;
  background: #1a1a1a;
  color: var(--green);
  border: 1px solid #444;
  border-radius: 3px;
}

.volume-group {
  display: flex;
  align-items: center;
  gap: 4px;
}

.vol-icon { color: var(--amber); font-size: 14px; }

.volume-slider {
  width: 60px;
  accent-color: var(--green);
  height: 4px;
}

/* Keyboard Map */
.keyboard-map {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.key-group { text-align: center; }

.key-label {
  font-size: 9px;
  color: var(--text-dim);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.key-row {
  display: flex;
  gap: 3px;
  justify-content: center;
  margin-bottom: 3px;
}

.key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: linear-gradient(180deg, #2a2a2a, #1a1a1a);
  border: 1px solid #444;
  border-radius: 3px;
  font-size: 10px;
  color: var(--text-dim);
  box-shadow: 0 2px 0 #000;
  transition: all 0.1s;
}

.key.wide { width: 40px; }

.key.pressed {
  background: var(--green);
  color: #000;
  box-shadow: 0 0 10px var(--green);
  transform: translateY(1px);
}

/* Debug Panel */
.debug-panel {
  width: 300px;
  background: #080808;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow-y: auto;
  max-height: calc(100vh - 120px);
  margin-left: 15px;
  flex-shrink: 0;
}

.debug-section {
  padding: 10px;
  border-bottom: 1px solid var(--border);
}

.debug-title {
  font-family: 'Press Start 2P', monospace;
  font-size: 9px;
  color: var(--amber);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.debug-content { font-size: 11px; }

.reg-row {
  display: flex;
  justify-content: space-between;
  padding: 2px 0;
}

.reg-name { color: var(--text-dim); }
.reg-val { color: var(--green); font-weight: 700; }

.flags-row {
  display: flex;
  gap: 4px;
  margin: 6px 0;
}

.flag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 3px;
  font-size: 9px;
  font-weight: 700;
  background: #1a1a1a;
  color: var(--text-dim);
  border: 1px solid #333;
}

.flag.lit {
  background: var(--green);
  color: #000;
  box-shadow: 0 0 6px var(--green);
}

.flag.dim { opacity: 0.3; }

.debug-sub {
  font-size: 10px;
  color: var(--text-dim);
  margin: 4px 0;
}

.disasm {
  font-size: 10px;
  color: var(--green);
  background: #050505;
  padding: 6px;
  border-radius: 3px;
  margin-top: 6px;
  max-height: 150px;
  overflow-y: auto;
  line-height: 1.6;
}

.disasm .current { color: var(--amber); font-weight: 700; }

.debug-btns {
  display: flex;
  gap: 4px;
  margin-top: 6px;
}

.dbg-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  padding: 3px 8px;
  background: #1a1a1a;
  color: var(--green);
  border: 1px solid #333;
  border-radius: 3px;
  cursor: pointer;
}

.dbg-btn:hover { border-color: var(--green); }

.vram-canvas, .osc-canvas {
  width: 100%;
  height: 64px;
  background: #050505;
  border: 1px solid #222;
  border-radius: 3px;
  margin-top: 6px;
  image-rendering: pixelated;
}

/* Status Bar */
.status-bar {
  display: flex;
  gap: 16px;
  padding: 6px 15px;
  background: var(--panel-bg);
  border-top: 1px solid var(--border);
  font-size: 10px;
  color: var(--text-dim);
  flex-wrap: wrap;
  justify-content: center;
}

.state-stopped { color: var(--red); }
.state-running { color: var(--green); }
.state-paused { color: var(--amber); }

/* Footer */
.footer {
  text-align: center;
  padding: 12px;
  font-size: 10px;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}

.footer a {
  color: var(--green);
  text-decoration: none;
  margin-left: 12px;
}

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

/* Modal */
.modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: #1a1a1a;
  border: 1px solid var(--green);
  border-radius: 8px;
  padding: 24px;
  max-width: 500px;
  width: 90%;
  color: var(--text);
  box-shadow: 0 0 40px rgba(51,255,51,0.1);
}

.modal-content h2 {
  font-family: 'Press Start 2P', monospace;
  font-size: 14px;
  color: var(--green);
  margin-bottom: 12px;
}

.modal-content p {
  font-size: 12px;
  line-height: 1.7;
  margin-bottom: 10px;
}

.hidden { display: none !important; }

/* Responsive */
@media (max-width: 900px) {
  #main-layout { flex-direction: column; align-items: center; }
  .debug-panel { width: 100%; max-width: 540px; margin-left: 0; margin-top: 12px; max-height: 400px; }
  #canvas { width: 100%; height: auto; max-width: 512px; }
  .title-glow { font-size: 16px; }
}

@media (max-width: 560px) {
  #crt-bezel { padding: 10px; border-radius: 10px; }
  #canvas { width: 100%; }
  .controls { gap: 4px; }
  .ctrl-btn { padding: 5px 8px; font-size: 11px; }
}

/* CRT power-on animation */
@keyframes crtOn {
  0% { transform: scaleY(0.005) scaleX(0.3); filter: brightness(5); }
  20% { transform: scaleY(0.005) scaleX(1); }
  50% { transform: scaleY(1) scaleX(1); filter: brightness(1.5); }
  100% { transform: scaleY(1) scaleX(1); filter: brightness(1); }
}

.crt-poweron #canvas {
  animation: crtOn 0.5s ease-out;
}