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

:root {
  --purple: #2C003E;
  --purple-light: #6A1B9A;
  --teal: #00897B;
  --magenta: #AD1457;
  --cream: #FFF8E1;
  --charcoal: #212121;
  --dark-bg: #0D0D12;
  --card-bg: #1A1A24;
  --border: #2A2A3A;
  --text: #E0E0E0;
  --text-dim: #888;
  --green-led: #00E676;
}

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

/* Header */
#header {
  background: linear-gradient(135deg, var(--purple) 0%, #1A0028 40%, var(--teal) 100%);
  padding: 16px 20px;
  text-align: center;
  position: relative;
  border-bottom: 2px solid var(--magenta);
}

.header-inner { position: relative; display: inline-block; }

.title {
  font-family: 'Press Start 2P', cursive;
  font-size: 24px;
  color: var(--cream);
  text-shadow: 2px 2px 0 var(--magenta), 4px 4px 0 rgba(0,0,0,0.3);
}

.berry { font-size: 28px; }

.subtitle {
  font-family: 'Press Start 2P', cursive;
  font-size: 9px;
  color: var(--teal);
  margin-top: 6px;
  letter-spacing: 2px;
}

.power-led {
  width: 8px; height: 8px;
  border-radius: 50%;
  position: absolute;
  right: -24px; top: 8px;
  background: #333;
  transition: background 0.3s;
}

.power-led.on {
  background: var(--green-led);
  box-shadow: 0 0 8px var(--green-led), 0 0 16px var(--green-led);
  animation: pulse-led 2s ease-in-out infinite;
}

@keyframes pulse-led {
  0%, 100% { box-shadow: 0 0 8px var(--green-led); }
  50% { box-shadow: 0 0 16px var(--green-led), 0 0 32px var(--green-led); }
}

/* Toolbar */
#toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  justify-content: center;
}

#toolbar button, #toolbar select {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  background: var(--charcoal);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 5px 10px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

#toolbar button:hover:not(:disabled) { background: #333; border-color: var(--teal); }
#toolbar button:disabled { opacity: 0.4; cursor: not-allowed; }
#toolbar select { padding: 4px 6px; }
#volume-slider {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
#volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--teal);
  cursor: pointer;
}
#volume-slider::-moz-range-thumb {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--teal);
  border: none;
  cursor: pointer;
}
.toolbar-sep { width: 1px; height: 24px; background: var(--border); margin: 0 4px; }

/* Main Content */
#main-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  gap: 16px;
}

/* ROM Upload */
#rom-upload-area { width: 100%; max-width: 640px; }

.drop-zone {
  border: 2px dashed var(--teal);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  background: rgba(0,137,123,0.05);
}

.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--magenta);
  background: rgba(173,20,87,0.08);
}

.cartridge-slot-icon { font-size: 36px; margin-bottom: 8px; }

.drop-text {
  font-family: 'Press Start 2P', cursive;
  font-size: 12px;
  color: var(--cream);
  margin-bottom: 4px;
}

.drop-subtext { font-size: 11px; color: var(--text-dim); }

.rom-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--card-bg);
  border: 1px solid var(--teal);
  border-radius: 8px;
  flex-wrap: wrap;
  font-size: 11px;
}

.rom-info span { color: var(--teal); }
.rom-info .hidden { display: none; }

#btn-eject {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  background: var(--charcoal);
  color: var(--magenta);
  border: 1px solid var(--magenta);
  border-radius: 4px;
  padding: 4px 10px;
  cursor: pointer;
  margin-left: auto;
}

.hidden { display: none !important; }

/* Bezel */
#emu-container { display: flex; flex-direction: column; align-items: center; gap: 8px; }

.bezel {
  border-radius: 20px 20px 50px 20px;
  padding: 16px 20px 30px;
  position: relative;
  box-shadow: 4px 4px 20px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.1);
  transition: background 0.4s;
}

.bezel-purple { background: linear-gradient(160deg, #6A1B9A, #4A148C); }
.bezel-teal { background: linear-gradient(160deg, #00897B, #00695C); }
.bezel-yellow { background: linear-gradient(160deg, #F9A825, #F57F17); }
.bezel-red { background: linear-gradient(160deg, #C62828, #B71C1C); }
.bezel-blue { background: linear-gradient(160deg, #1565C0, #0D47A1); }
.bezel-green { background: linear-gradient(160deg, #2E7D32, #1B5E20); }

.bezel-top-label {
  text-align: center;
  margin-bottom: 8px;
  font-family: 'Press Start 2P', cursive;
  font-size: 10px;
  letter-spacing: 4px;
}

.color-label { color: #E53935; }
.color-label.c2 { color: #FDD835; }
.color-label.c3 { color: #43A047; }
.color-label.c4 { color: #1E88E5; }
.color-label.c5 { color: #8E24AA; }

.screen-well {
  background: #0a0a0a;
  border-radius: 6px;
  padding: 8px;
  position: relative;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.8);
}

#screen {
  display: block;
  width: 480px;
  height: 432px;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  background: #0f380f;
  border-radius: 2px;
}

.screen-off-text {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'Press Start 2P', cursive;
  font-size: 10px;
  color: #1a4a1a;
  pointer-events: none;
}

.scanline-overlay {
  position: absolute;
  top: 8px; left: 8px; right: 8px; bottom: 8px;
  background: repeating-linear-gradient(
    0deg,
    rgba(0,0,0,0.15) 0px,
    rgba(0,0,0,0.15) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
  border-radius: 2px;
}

.bezel-bottom { margin-top: 12px; display: flex; justify-content: flex-end; }

.speaker-grille {
  display: grid;
  grid-template-columns: repeat(6, 6px);
  gap: 3px;
}

.speaker-grille .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: rgba(0,0,0,0.3);
}

/* Bezel Colors */
#bezel-colors {
  display: flex;
  gap: 8px;
  align-items: center;
}

.bezel-color-btn {
  width: 24px; height: 24px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s;
}

.bezel-color-btn:hover { transform: scale(1.15); }
.bezel-color-btn.active { border-color: var(--cream); }

.scanline-toggle {
  font-size: 11px;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
}

/* On-Screen Controls */
#controls {
  width: 100%;
  max-width: 520px;
  padding: 12px 0;
}

.controls-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 12px;
}

/* D-Pad */
.dpad-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.dpad-mid-row {
  display: flex;
  align-items: center;
  gap: 0;
}

.dpad-btn {
  width: 48px; height: 48px;
  background: #2A2A2A;
  color: #666;
  border: 1px solid #333;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.1s;
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation;
}

.dpad-up { border-radius: 6px 6px 0 0; }
.dpad-down { border-radius: 0 0 6px 6px; }
.dpad-left { border-radius: 6px 0 0 6px; }
.dpad-right { border-radius: 0 6px 6px 0; }
.dpad-center { width: 48px; height: 48px; background: #2A2A2A; border: 1px solid #333; }

.dpad-btn:active, .dpad-btn.pressed {
  background: #444;
  color: var(--teal);
}

/* A/B Buttons */
.ab-container {
  display: flex;
  gap: 16px;
  transform: rotate(-15deg);
}

.ab-btn {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(145deg, #C62828, #AD1457);
  color: var(--cream);
  font-family: 'Press Start 2P', cursive;
  font-size: 12px;
  border: 2px solid #8C0032;
  cursor: pointer;
  box-shadow: 2px 3px 6px rgba(0,0,0,0.5);
  transition: transform 0.08s, box-shadow 0.08s;
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation;
}

.ab-btn:active, .ab-btn.pressed {
  transform: scale(0.93);
  box-shadow: 1px 1px 3px rgba(0,0,0,0.5);
}

.btn-a { margin-top: -16px; }

/* Start/Select */
.startselect-row {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 10px;
}

.ss-btn {
  padding: 6px 18px;
  border-radius: 20px;
  background: #333;
  color: var(--text-dim);
  font-family: 'Press Start 2P', cursive;
  font-size: 7px;
  border: 1px solid #444;
  cursor: pointer;
  transition: background 0.1s;
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation;
}

.ss-btn:active, .ss-btn.pressed {
  background: #555;
  color: var(--text);
}

/* Key Map */
.key-map {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  max-width: 300px;
  width: 100%;
}

.key-map h3 {
  font-family: 'Press Start 2P', cursive;
  font-size: 10px;
  margin-bottom: 8px;
  color: var(--teal);
}

.key-row {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  padding: 3px 0;
  border-bottom: 1px solid #1f1f2f;
}

.key-row span:first-child {
  color: var(--cream);
  font-weight: 700;
}

/* Debug Panel */
.debug-panel {
  position: fixed;
  top: 0; right: 0;
  width: 380px;
  height: 100vh;
  background: var(--card-bg);
  border-left: 2px solid var(--teal);
  overflow-y: auto;
  z-index: 100;
  padding: 12px;
  transition: transform 0.3s;
}

.debug-panel.hidden { transform: translateX(100%); display: block !important; visibility: hidden; }
.debug-panel:not(.hidden) { visibility: visible; transform: translateX(0); }

.debug-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.debug-header h3 {
  font-family: 'Press Start 2P', cursive;
  font-size: 11px;
  color: var(--teal);
}

.debug-controls button {
  font-size: 10px;
  padding: 3px 8px;
  background: var(--charcoal);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 3px;
  cursor: pointer;
  margin-left: 4px;
}

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

.debug-section h4 {
  font-family: 'Press Start 2P', cursive;
  font-size: 8px;
  color: var(--magenta);
  margin-bottom: 4px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
}

.debug-section pre {
  font-size: 10px;
  line-height: 1.5;
  color: var(--text-dim);
  white-space: pre-wrap;
  word-break: break-all;
}

#dbg-tiles {
  width: 256px;
  height: 192px;
  image-rendering: pixelated;
  background: #000;
  border: 1px solid var(--border);
}

/* Footer */
#footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  padding: 10px 16px;
  font-size: 10px;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  background: var(--card-bg);
  flex-wrap: wrap;
  text-align: center;
}

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

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

#fps-counter {
  font-family: 'JetBrains Mono', monospace;
  color: var(--green-led);
  font-size: 10px;
}

/* Responsive */
@media (max-width: 600px) {
  .title { font-size: 16px; }
  .subtitle { font-size: 7px; }
  #screen { width: 320px; height: 288px; }
  .bezel { padding: 10px 12px 24px; border-radius: 14px 14px 36px 14px; }
  .ab-btn { width: 48px; height: 48px; font-size: 10px; }
  .dpad-btn { width: 42px; height: 42px; font-size: 12px; }
  .dpad-center { width: 42px; height: 42px; }
  #toolbar { gap: 4px; }
  #toolbar button, #toolbar select { font-size: 10px; padding: 4px 6px; }
  .debug-panel { width: 100%; }
  .key-map { display: none; }
}

@media (min-width: 1024px) {
  #main-content {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-start;
    gap: 24px;
  }
  
  #emu-container { order: 1; }
  #rom-upload-area { order: 0; max-width: 300px; }
  .key-map { order: 2; }
  #controls { order: 3; max-width: 520px; }
}

/* Cartridge insert animation */
@keyframes cartridge-insert {
  0% { transform: translateY(-20px); opacity: 0; }
  60% { transform: translateY(4px); opacity: 1; }
  100% { transform: translateY(0); opacity: 1; }
}

.rom-info { animation: cartridge-insert 0.4s ease-out; }

/* Screen glow when on */
.screen-well.on {
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.8), 0 0 20px rgba(15,56,15,0.3);
}