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

:root {
  --bg-deep: #0a0a0f;
  --bg-panel: #0e0e18;
  --bg-section: #121220;
  --border: #1a1a30;
  --green: #00ff88;
  --amber: #ffaa00;
  --cyan: #00ccff;
  --magenta: #ff44cc;
  --text: #c0c0d0;
  --text-dim: #606080;
  --glow-green: 0 0 8px #00ff8844, 0 0 2px #00ff8888;
  --glow-amber: 0 0 8px #ffaa0044, 0 0 2px #ffaa0088;
  --font-mono: 'IBM Plex Mono', 'Share Tech Mono', monospace;
  --font-display: 'Share Tech Mono', monospace;
}

body {
  font-family: var(--font-mono);
  background: var(--bg-deep);
  color: var(--text);
  overflow-x: hidden;
  font-size: 12px;
  line-height: 1.4;
}

#app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  min-height: 600px;
}

/* TOP BAR */
#top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: linear-gradient(180deg, #111122 0%, var(--bg-deep) 100%);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

#top-bar h1 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 400;
  color: var(--green);
  text-shadow: var(--glow-green);
  letter-spacing: 2px;
}

.subtitle {
  font-size: 10px;
  color: var(--text-dim);
  font-style: italic;
  margin-left: 12px;
}

.status-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.led-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: var(--glow-green);
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.led-label {
  font-size: 10px;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* MAIN LAYOUT */
#main-layout {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* PANELS */
#left-panel, #right-panel {
  width: 280px;
  min-width: 220px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  flex-shrink: 0;
}

#right-panel {
  border-right: none;
  border-left: 1px solid var(--border);
}

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

.panel-header {
  font-family: var(--font-display);
  font-size: 10px;
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 8px;
  text-shadow: var(--glow-amber);
}

/* PALETTE GRID */
#palette-grid {
  display: grid;
  grid-template-columns: repeat(16, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-bottom: 6px;
}

.palette-cell {
  aspect-ratio: 1;
  cursor: pointer;
  position: relative;
  transition: transform 0.1s;
  min-width: 0;
}

.palette-cell:hover {
  transform: scale(1.3);
  z-index: 10;
  outline: 2px solid var(--cyan);
  outline-offset: -1px;
}

.palette-cell.selected {
  outline: 2px solid var(--magenta);
  outline-offset: -1px;
  box-shadow: 0 0 6px var(--magenta);
}

#palette-hover-info {
  font-size: 10px;
  color: var(--cyan);
  height: 16px;
  margin-bottom: 6px;
}

.palette-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

/* BUTTONS */
.btn {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 4px 8px;
  background: var(--bg-section);
  color: var(--text);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 6px #00ccff33;
}

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

.btn.accent:hover {
  background: #00ff8815;
  box-shadow: 0 0 8px #00ff8833;
}

.btn.active {
  background: var(--green);
  color: var(--bg-deep);
  border-color: var(--green);
}

/* CENTER PANEL */
#center-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--bg-deep);
}

.canvas-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  background: var(--bg-panel);
}

.canvas-toolbar label {
  font-size: 10px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 4px;
}

.canvas-toolbar select {
  font-family: var(--font-mono);
  font-size: 10px;
  background: var(--bg-section);
  color: var(--cyan);
  border: 1px solid var(--border);
  padding: 2px 4px;
}

#canvas-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: 
    repeating-linear-gradient(0deg, transparent, transparent 3px, rgba(255,255,255,0.01) 3px, rgba(255,255,255,0.01) 4px),
    radial-gradient(ellipse at center, #0e0e1a 0%, #050510 100%);
  gap: 10px;
}

#main-canvas, #compare-canvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  cursor: crosshair;
  border: 1px solid var(--border);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.05), inset 0 0 60px rgba(0,0,0,0.5);
}

#scanline-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.06) 2px,
    rgba(0, 0, 0, 0.06) 4px
  );
  mix-blend-mode: multiply;
}

/* PLAYBACK */
#playback-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
}

.btn-transport {
  font-size: 14px;
  background: var(--bg-section);
  border: 1px solid var(--border);
  color: var(--green);
  cursor: pointer;
  width: 30px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.btn-transport:hover {
  border-color: var(--green);
  box-shadow: var(--glow-green);
}

#frame-counter {
  font-size: 11px;
  color: var(--amber);
  min-width: 80px;
}

.fps-label {
  font-size: 10px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

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

#fps-val {
  color: var(--green);
  min-width: 16px;
}

#timeline-bar {
  display: flex;
  gap: 2px;
  padding: 4px 10px;
  background: var(--bg-section);
  border-top: 1px solid var(--border);
  overflow-x: auto;
  min-height: 40px;
  align-items: center;
}

.timeline-thumb {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  cursor: pointer;
  image-rendering: pixelated;
  flex-shrink: 0;
  transition: all 0.15s;
}

.timeline-thumb.active {
  border-color: var(--green);
  box-shadow: 0 0 6px var(--green);
}

.timeline-thumb:hover {
  border-color: var(--cyan);
}

/* HEX DISPLAY */
.hex-display {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.6;
  background: #08080f;
  padding: 6px;
  border: 1px solid var(--border);
  max-height: 200px;
  overflow-y: auto;
  word-break: break-all;
}

.hex-display .cmd { color: var(--green); }
.hex-display .idx { color: var(--amber); }
.hex-display .param { color: var(--cyan); }
.hex-display .magic { color: var(--magenta); }

/* COMMAND TABLE */
#command-table {
  max-height: 320px;
  overflow-y: auto;
  font-size: 10px;
}

.cmd-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 4px;
  border-bottom: 1px solid #0a0a18;
  transition: background 0.1s;
}

.cmd-row:hover {
  background: #1a1a30;
}

.cmd-row.active {
  background: #00ff8815;
  border-left: 2px solid var(--green);
}

.cmd-hex {
  color: var(--green);
  font-weight: 700;
  min-width: 32px;
}

.cmd-name {
  color: var(--amber);
  min-width: 100px;
}

.cmd-desc {
  color: var(--text-dim);
  flex: 1;
}

.cmd-preview {
  width: 16px;
  height: 16px;
  border: 1px solid var(--border);
  image-rendering: pixelated;
}

/* BOTTOM PANEL */
#bottom-panel {
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
  flex-shrink: 0;
}

#stats-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  overflow-x: auto;
}

.stat-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 80px;
}

.stat-box-wide {
  min-width: 200px;
}

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

.stat-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--green);
  text-shadow: var(--glow-green);
}

#dither-matrix-vis, #cmd-usage-chart {
  border: 1px solid var(--border);
  image-rendering: pixelated;
}

#footer-credits {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 16px;
  font-size: 10px;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}

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

#footer-credits a:hover {
  text-decoration: underline;
  text-shadow: 0 0 6px var(--cyan);
}

/* VIDEO IMPORT PROGRESS */
.video-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 15, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.video-progress-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 32px 48px;
  border: 1px solid var(--green);
  background: var(--bg-panel);
  box-shadow: 0 0 40px rgba(0, 255, 136, 0.15), inset 0 0 30px rgba(0, 0, 0, 0.5);
}

.video-progress-label {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--green);
  text-shadow: var(--glow-green);
  letter-spacing: 3px;
  animation: blink 1.2s ease-in-out infinite;
}

.video-progress-bar {
  width: 280px;
  height: 8px;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  overflow: hidden;
}

.video-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--green), var(--cyan));
  box-shadow: 0 0 8px var(--green);
  transition: width 0.15s ease-out;
}

.video-progress-status {
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 1px;
}

/* Scrollbar styling */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #2a2a50; }

/* ENCODE ANIMATION */
@keyframes encode-flash {
  0% { box-shadow: 0 0 20px var(--green); }
  50% { box-shadow: 0 0 40px var(--magenta); }
  100% { box-shadow: 0 0 20px var(--green); }
}

.encoding {
  animation: encode-flash 0.3s ease-in-out 3;
}

/* Responsive */
@media (max-width: 1100px) {
  #left-panel, #right-panel { width: 240px; }
}

@media (max-width: 900px) {
  #main-layout { flex-direction: column; }
  #left-panel, #right-panel { width: 100%; max-height: 300px; border: none; border-bottom: 1px solid var(--border); }
}