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

:root {
  --bg: #080810;
  --panel-bg: #0d0d18;
  --border: #1a1a2e;
  --green: #33ff66;
  --amber: #ffaa00;
  --cyan: #00ccff;
  --red: #ff4466;
  --blue: #4488ff;
  --white: #f0e8d0;
  --dim: #667766;
  --glow-green: 0 0 8px #33ff6644, 0 0 2px #33ff6688;
  --glow-amber: 0 0 8px #ffaa0044;
  --glow-cyan: 0 0 8px #00ccff44;
  --font-display: 'VT323', monospace;
  --font-mono: 'Share Tech Mono', monospace;
}

html, body { 
  height:100%; 
  background: var(--bg); 
  color: var(--white); 
  font-family: var(--font-mono); 
  font-size: 13px;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.03) 2px,
    rgba(0,0,0,0.03) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

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

/* HEADER */
#header {
  padding: 10px 20px;
  background: linear-gradient(180deg, #0f0f1a 0%, #080810 100%);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.header-left { display:flex; align-items:center; gap:12px; }

.title {
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--green);
  text-shadow: var(--glow-green);
  letter-spacing: 4px;
}

.subtitle {
  font-size: 12px;
  color: var(--dim);
  letter-spacing: 2px;
  text-transform: uppercase;
}

#colorburst-icon { opacity: 0.8; }

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

/* PANELS */
.panel {
  width: 220px;
  min-width: 200px;
  background: var(--panel-bg);
  border-right: 1px solid var(--border);
  padding: 10px;
  overflow-y: auto;
  flex-shrink: 0;
}

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

.panel-header {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--amber);
  text-shadow: var(--glow-amber);
  letter-spacing: 3px;
  padding: 4px 0;
  border-bottom: 1px solid #2a2a1a;
  margin-bottom: 8px;
}

.control-group { margin-bottom: 10px; }

.hw-label {
  display: block;
  font-size: 10px;
  color: var(--dim);
  letter-spacing: 2px;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.hw-button, .hw-btn-sm {
  display: block;
  width: 100%;
  padding: 8px 10px;
  background: linear-gradient(180deg, #222233 0%, #181825 100%);
  color: var(--green);
  border: 1px solid #333344;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  text-align: center;
  letter-spacing: 1px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05), 0 2px 4px rgba(0,0,0,0.4);
  transition: all 0.15s;
}

.hw-button:hover, .hw-btn-sm:hover {
  background: linear-gradient(180deg, #2a2a3f 0%, #1e1e30 100%);
  border-color: var(--green);
  box-shadow: var(--glow-green);
}

.hw-button:active, .hw-btn-sm:active { transform: translateY(1px); }

.hw-btn-sm { width: auto; padding: 4px 10px; font-size:11px; }

.btn-row { display:flex; gap:4px; }
.btn-grid { display:grid; grid-template-columns:1fr 1fr; gap:4px; }

.pattern-btn, .std-btn, .preset-btn {
  padding: 5px 6px;
  background: #151522;
  border: 1px solid #2a2a3a;
  border-radius: 3px;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 10px;
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 1px;
}

.pattern-btn:hover, .std-btn:hover, .preset-btn:hover { border-color:#555; color:var(--white); }
.pattern-btn.active, .std-btn.active { 
  border-color: var(--green); 
  color: var(--green); 
  box-shadow: var(--glow-green);
  background: #112211;
}

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

.file-info { font-size:10px; color:var(--dim); margin-top:4px; }

.video-preview-wrap {
  background: #000;
  border: 1px solid var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 4px;
}

#preview-canvas { width:100%; height:auto; display:block; }

/* SLIDERS */
.hw-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: #1a1a2a;
  border-radius: 3px;
  border: 1px solid #2a2a3a;
  outline: none;
  cursor: pointer;
}

.hw-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  background: linear-gradient(180deg, #444455 0%, #222233 100%);
  border: 1px solid #666;
  border-radius: 2px;
  cursor: pointer;
}

.hw-slider::-webkit-slider-thumb:hover { border-color: var(--green); }

.readout {
  font-size: 11px;
  color: var(--green);
  text-shadow: var(--glow-green);
  margin-top: 2px;
}

.slider-row { margin: 4px 0; }

/* TOGGLE LABELS */
.toggle-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--dim);
  cursor: pointer;
  padding: 2px 0;
}

.toggle-label input { display:none; }

.led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #333;
  border: 1px solid #444;
  transition: all 0.2s;
}

.toggle-label input:checked ~ .led.green { background: var(--green); box-shadow: 0 0 6px var(--green); }
.toggle-label input:checked ~ .led.white { background: #fff; box-shadow: 0 0 6px #fff; }
.toggle-label input:checked ~ .led.blue { background: var(--blue); box-shadow: 0 0 6px var(--blue); }
.toggle-label input:checked ~ .led.red { background: var(--red); box-shadow: 0 0 6px var(--red); }
.toggle-label input:checked ~ .led.amber { background: var(--amber); box-shadow: 0 0 6px var(--amber); }
.toggle-label input:checked ~ .led.cyan { background: var(--cyan); box-shadow: 0 0 6px var(--cyan); }

.toggle-label input:checked ~ span:last-child { color: var(--white); }

/* CENTER AREA */
#center-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 10px;
  overflow-y: auto;
}

.tab-bar { display:flex; gap:2px; margin-bottom:8px; }

.tab {
  padding: 8px 16px;
  background: #111120;
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 4px 4px 0 0;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  letter-spacing: 2px;
  transition: all 0.15s;
}

.tab:hover { color:var(--white); }
.tab.active { 
  background: #0a0a1a; 
  color: var(--green); 
  border-color: var(--green);
  text-shadow: var(--glow-green);
}

.tab-content { flex:1; }
.tab-content.hidden { display:none; }

/* SCOPE BEZEL */
.scope-bezel {
  position: relative;
  background: #050510;
  border: 2px solid #1a2a1a;
  border-radius: 8px;
  padding: 4px;
  box-shadow: inset 0 0 30px rgba(51,255,102,0.03), 0 0 15px rgba(0,0,0,0.6);
  overflow: hidden;
}

.scope-bezel canvas { width:100%; height:auto; display:block; border-radius:4px; }

.scope-labels {
  position: absolute;
  top: 0; left: 8px; bottom: 0;
  pointer-events: none;
}

.scope-label {
  position: absolute;
  left: 0;
  font-size: 9px;
  color: rgba(255,170,0,0.4);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.waveform-controls {
  display: flex;
  gap: 12px;
  padding: 8px 0;
  flex-wrap: wrap;
}

/* DECODED VIEW */
.decoded-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}

.decoded-cell, .channel-cell {
  background: #050510;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px;
  text-align: center;
}

.cell-label {
  font-size: 10px;
  color: var(--dim);
  letter-spacing: 2px;
  margin-bottom: 4px;
}

.decoded-cell canvas, .channel-cell canvas { width:100%; height:auto; display:block; }

.channel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 6px;
}

/* SPECTRUM */
.spectrum-info {
  display: flex;
  justify-content: space-between;
  padding: 4px 8px;
  font-size: 9px;
  color: var(--dim);
}

/* INFO PANEL */
.info-panel {
  margin-top: 10px;
  background: #0a0a16;
  border: 1px solid var(--border);
  border-radius: 4px;
}

.info-header {
  padding: 6px 10px;
  font-size: 11px;
  color: var(--amber);
  cursor: pointer;
  letter-spacing: 2px;
}

.info-content { padding: 8px 10px; font-size: 11px; line-height: 1.6; color: var(--dim); }
.info-content.hidden { display:none; }

.fun-fact {
  margin-top: 8px;
  padding: 6px 8px;
  background: #111118;
  border-left: 2px solid var(--amber);
  border-radius: 0 3px 3px 0;
  font-size: 11px;
}

.fun-fact strong { color: var(--amber); }

/* SIGNAL METER */
.signal-meter { margin-top: 12px; }
.meter-label { font-size:10px; color:var(--dim); letter-spacing:2px; margin-bottom:2px; }
.meter-bar {
  width: 100%;
  height: 10px;
  background: #111;
  border: 1px solid #2a2a3a;
  border-radius: 2px;
  overflow: hidden;
}
.meter-fill {
  height: 100%;
  width: 80%;
  background: linear-gradient(90deg, var(--green) 0%, var(--green) 60%, var(--amber) 80%, var(--red) 100%);
  transition: width 0.3s;
  border-radius: 2px;
}

/* FOOTER */
#footer {
  padding: 10px 20px;
  background: #0a0a14;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: center;
  gap: 20px;
  font-size: 10px;
  color: #445544;
  flex-wrap: wrap;
  align-items: center;
}

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

.footer-joke { font-style: italic; }

/* EASTER EGG */
.easter-egg {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: 72px;
  color: var(--green);
  text-shadow: 0 0 30px var(--green), 0 0 60px var(--green);
  z-index: 10000;
  pointer-events: none;
  animation: crt-flicker 0.1s infinite;
}

.easter-egg.hidden { display: none; }

@keyframes crt-flicker {
  0% { opacity:1; }
  50% { opacity:0.7; }
  100% { opacity:1; }
}

/* SCROLLBAR */
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:#080810; }
::-webkit-scrollbar-thumb { background:#222; border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:#333; }

/* RESPONSIVE */
@media (max-width: 1000px) {
  #main-layout { flex-direction:column; }
  .panel { width:100%; min-width:0; border-right:none; border-bottom:1px solid var(--border); }
  #right-panel { border-left:none; border-top:1px solid var(--border); }
  .channel-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .decoded-grid { grid-template-columns: 1fr; }
  .title { font-size: 24px; }
}