:root {
  --bg: #0a0a0f;
  --surface: #13131d;
  --surface2: #1a1a2e;
  --border: #2a2a3e;
  --green: #00ff41;
  --amber: #ffb000;
  --pink: #ff2d95;
  --cyan: #00e5ff;
  --text: #c8c8d4;
  --text-dim: #6a6a7e;
  --font-pixel: 'Press Start 2P', monospace;
  --font-mono: 'IBM Plex Mono', monospace;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(0,255,65,0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(255,45,149,0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

#app {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px 40px;
}

/* HEADER */
header {
  text-align: center;
  padding: 32px 0 24px;
  position: relative;
}

header h1 {
  font-family: var(--font-pixel);
  font-size: clamp(16px, 4vw, 28px);
  color: var(--green);
  text-shadow: 0 0 20px rgba(0,255,65,0.4), 0 0 60px rgba(0,255,65,0.1);
  letter-spacing: 2px;
  line-height: 1.6;
}

header h1 .berry {
  display: inline-block;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

.subtitle {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 8px;
  font-weight: 300;
  letter-spacing: 1px;
}

.info-tooltip {
  position: absolute;
  top: 32px;
  right: 16px;
}

.info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--green);
  border-radius: 50%;
  color: var(--green);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.info-icon:hover {
  background: var(--green);
  color: var(--bg);
}

.info-popup {
  display: none;
  position: absolute;
  right: 0;
  top: 32px;
  width: 260px;
  background: var(--surface2);
  border: 1px solid var(--green);
  border-radius: 8px;
  padding: 12px;
  font-size: 11px;
  line-height: 1.6;
  color: var(--text);
  z-index: 100;
  box-shadow: 0 0 20px rgba(0,255,65,0.15);
}

.info-tooltip:hover .info-popup { display: block; }

/* DROP ZONE */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 16px;
  padding: 60px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  background: var(--surface);
  margin: 16px 0;
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--green);
  background: rgba(0,255,65,0.03);
  box-shadow: 0 0 40px rgba(0,255,65,0.08);
}

.drop-icon {
  font-size: 48px;
  margin-bottom: 16px;
  filter: grayscale(0.5);
}

.drop-text {
  font-family: var(--font-pixel);
  font-size: 11px;
  color: var(--green);
  margin-bottom: 8px;
}

.drop-sub {
  font-size: 12px;
  color: var(--text-dim);
  font-style: italic;
}

/* WORKSPACE */
.workspace { margin-top: 16px; }
.hidden { display: none !important; }

.canvas-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

@media (max-width: 700px) {
  .canvas-row {
    grid-template-columns: 1fr;
  }
}

.canvas-wrap { text-align: center; }

.canvas-label {
  font-family: var(--font-pixel);
  font-size: 10px;
  color: var(--amber);
  letter-spacing: 3px;
  display: block;
  margin-bottom: 8px;
}

.canvas-frame {
  background: #000;
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  display: inline-block;
  position: relative;
  overflow: hidden;
  max-width: 100%;
}

.canvas-frame canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

.crt-frame {
  border-color: var(--green);
  box-shadow: 0 0 15px rgba(0,255,65,0.1), inset 0 0 30px rgba(0,0,0,0.3);
}

.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;
  z-index: 2;
}

.crt-vignette {
  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;
  z-index: 3;
}

/* CONTROLS */
.controls-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  display: grid;
  gap: 18px;
}

.control-label {
  font-family: var(--font-pixel);
  font-size: 9px;
  color: var(--cyan);
  letter-spacing: 2px;
  display: block;
  margin-bottom: 10px;
}

.control-label span {
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 12px;
}

/* Radio buttons */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.radio-btn {
  cursor: pointer;
  display: block;
}

.radio-btn input { display: none; }

.radio-btn span {
  display: inline-block;
  padding: 8px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  color: var(--text-dim);
  transition: all 0.2s;
}

.radio-btn input:checked + span {
  border-color: var(--green);
  color: var(--green);
  background: rgba(0,255,65,0.08);
  box-shadow: 0 0 10px rgba(0,255,65,0.15);
}

.radio-btn:hover span {
  border-color: var(--text-dim);
}

/* Palette */
.palette-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.preset-btn {
  padding: 6px 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s;
}

.preset-btn.active {
  border-color: var(--pink);
  color: var(--pink);
  background: rgba(255,45,149,0.08);
}

.preset-btn:hover { border-color: var(--text-dim); }

.palette-swatches {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.swatch {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  border: 2px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.swatch:hover {
  transform: scale(1.15);
  border-color: #fff;
  z-index: 2;
}

.swatch.editable {
  cursor: pointer;
}

.randomize-btn {
  padding: 6px 14px;
  background: var(--surface2);
  border: 1px solid var(--amber);
  border-radius: 6px;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s;
}

.randomize-btn:hover {
  background: rgba(255,176,0,0.1);
  box-shadow: 0 0 12px rgba(255,176,0,0.2);
}

/* Sliders */
.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--surface2);
  outline: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(0,255,65,0.4);
  transition: box-shadow 0.2s;
}

.slider::-webkit-slider-thumb:hover {
  box-shadow: 0 0 16px rgba(0,255,65,0.6);
}

.slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green);
  cursor: pointer;
  border: none;
  box-shadow: 0 0 8px rgba(0,255,65,0.4);
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-dim);
  margin-top: 4px;
}

/* Toggle */
.control-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  cursor: pointer;
  color: var(--text);
}

.toggle-label input { display: none; }

.toggle-switch {
  width: 40px;
  height: 22px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 11px;
  position: relative;
  transition: all 0.3s;
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: all 0.3s;
}

.toggle-label input:checked + .toggle-switch {
  background: rgba(0,255,65,0.15);
  border-color: var(--green);
}

.toggle-label input:checked + .toggle-switch::after {
  transform: translateX(18px);
  background: var(--green);
}

.apply-btn {
  padding: 8px 20px;
  background: var(--surface2);
  border: 1px solid var(--amber);
  border-radius: 6px;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.apply-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.apply-btn:not(:disabled):hover {
  background: rgba(255,176,0,0.1);
}

/* Buttons */
.download-btn {
  width: 100%;
  padding: 14px;
  background: transparent;
  border: 2px solid var(--green);
  border-radius: 8px;
  color: var(--green);
  font-family: var(--font-pixel);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.3s;
  text-shadow: 0 0 10px rgba(0,255,65,0.3);
  box-shadow: 0 0 20px rgba(0,255,65,0.1);
}

.download-btn:hover {
  background: rgba(0,255,65,0.08);
  box-shadow: 0 0 40px rgba(0,255,65,0.25), inset 0 0 20px rgba(0,255,65,0.05);
  transform: translateY(-1px);
}

.new-image-btn {
  width: 100%;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 6px;
}

.new-image-btn:hover {
  border-color: var(--text-dim);
  color: var(--text);
}

/* Histogram */
.histogram-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  margin-top: 16px;
}

.histogram-bars {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  height: 80px;
}

.hist-bar-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  justify-content: flex-end;
}

.hist-bar {
  width: 100%;
  min-height: 2px;
  border-radius: 3px 3px 0 0;
  transition: height 0.4s ease;
}

.hist-label {
  font-size: 9px;
  color: var(--text-dim);
  margin-top: 4px;
  text-align: center;
}

.hist-swatch {
  width: 16px;
  height: 16px;
  border-radius: 3px;
  margin-top: 4px;
  border: 1px solid rgba(255,255,255,0.15);
}

/* Footer */
footer {
  text-align: center;
  margin-top: 40px;
  padding: 20px;
  border-top: 1px solid var(--border);
}

footer p {
  font-size: 11px;
  color: var(--text-dim);
  font-style: italic;
  margin-bottom: 8px;
}

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

footer a:hover {
  color: var(--green);
  text-shadow: 0 0 8px rgba(0,255,65,0.4);
}

/* Processing indicator */
.processing-indicator {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-pixel);
  font-size: 10px;
  color: var(--green);
  z-index: 10;
  text-shadow: 0 0 10px var(--green);
  animation: blink 0.6s infinite;
}

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