:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111318;
  --bg-panel: #161b22;
  --border: #30363d;
  --accent: #00ff41;
  --accent-dim: #00cc33;
  --accent-glow: rgba(0, 255, 65, 0.15);
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-accent: #00ff41;
  --danger: #f85149;
  --warning: #d29922;
}

[data-theme="amber"] {
  --accent: #ffb000;
  --accent-dim: #cc8d00;
  --accent-glow: rgba(255, 176, 0, 0.15);
  --text-accent: #ffb000;
}

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

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

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

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-dim); }

.power-led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 6px;
}

.led-off { background: #333; }
.led-booting { background: var(--warning); animation: pulse-led 0.5s infinite; }
.led-running { background: var(--accent); box-shadow: 0 0 6px var(--accent); animation: pulse-led 2s infinite; }
.led-halted { background: var(--danger); }

@keyframes pulse-led {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

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

.terminal-cursor {
  animation: blink-cursor 1s step-end infinite;
}

.crt-effect {
  position: relative;
}
.crt-effect::before {
  content: '';
  position: absolute;
  inset: 0;
  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;
  z-index: 2;
}
.crt-effect::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.4) 100%);
  pointer-events: none;
  z-index: 3;
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.15s;
}
.btn:hover { border-color: var(--accent-dim); color: var(--accent); }

.btn-boot {
  background: rgba(0, 255, 65, 0.1);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  padding: 6px 18px;
}
.btn-boot:hover { background: rgba(0, 255, 65, 0.25); box-shadow: 0 0 12px var(--accent-glow); }

.btn-danger { border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: rgba(248, 81, 73, 0.15); }

.register-row:hover { background: rgba(255,255,255,0.03); }

.badge {
  font-size: 9px;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.heartbeat {
  display: inline-block;
  animation: heartbeat 1.5s ease-in-out infinite;
}
@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  14% { transform: scale(1.2); }
  28% { transform: scale(1); }
  42% { transform: scale(1.15); }
  56% { transform: scale(1); }
}

.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 4px;
  padding: 8px 12px;
  text-align: center;
  transition: all 0.2s;
  cursor: pointer;
}
.drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-glow);
}

@media (max-width: 900px) {
  .main-panels { flex-direction: column !important; }
  .main-panels > div { width: 100% !important; max-height: 40vh; }
}