* { 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; }
.header-right { margin-left:auto; }

.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; }

/* AUDIO MASTER TOGGLE */
.audio-toggle {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  background: linear-gradient(180deg, #222233 0%, #181825 100%);
  border: 1px solid #333344; border-radius: 6px;
  color: var(--dim); font-family: var(--font-mono); font-size: 13px;
  cursor: pointer; letter-spacing: 2px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05), 0 2px 4px rgba(0,0,0,0.4);
  transition: all 0.2s;
}
.audio-toggle:hover { border-color: var(--amber); }
.audio-toggle.active { color: var(--amber); border-color: var(--amber); box-shadow: var(--glow-amber); background:#2a2010; }
.audio-led {
  width: 10px; height: 10px; border-radius: 50%;
  background: #440000; border: 1px solid #660000; transition: all 0.3s;
}
.audio-led.on { background: var(--amber); box-shadow: 0 0 8px var(--amber), 0 0 3px #fff; }

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

.panel {
  width: 230px; min-width: 210px; 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; }

.silence-btn { color: var(--red); }
.silence-btn:hover { border-color: var(--red); box-shadow: 0 0 8px #ff446644; }

.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); }
.mix-slider::-webkit-slider-thumb { background: linear-gradient(180deg,#665533 0%,#332811 100%); }
.mix-slider::-webkit-slider-thumb:hover { border-color: var(--amber); }
.mix-slider { margin-bottom: 6px; }

.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); }

/* AUDIO MIXER */
.mixer { background:#0b0b14; border:1px solid #2a2418; border-radius:4px; padding:8px; }
.vu-wrap { margin-bottom:8px; }
.vu-bar { width:100%; height:8px; background:#111; border:1px solid #2a2a1a; border-radius:2px; overflow:hidden; }
.vu-fill {
  height:100%; width:0%;
  background: linear-gradient(90deg, var(--green) 0%, var(--green) 55%, var(--amber) 78%, var(--red) 100%);
  transition: width 0.08s linear; border-radius:2px;
}

/* 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; }
  .header-right { margin-left:0; }
}
@media (max-width: 600px) {
  .decoded-grid { grid-template-columns: 1fr; }
  .title { font-size: 24px; }
}