/* Visual refresh for root shell (no behavior changes) */
:root {
  --vr-bg-main: #0f1016;
  --vr-bg-panel: #1a1d26;
  --vr-bg-panel-2: #141720;
  --vr-border: #2f3340;
  --vr-text: #f4f5f8;
  --vr-muted: #9ba1b3;
  --vr-accent: #ffb300;
  --vr-accent-2: #f59e0b;
  --vr-green: #22c55e;
}

html,
body {
  background:
    radial-gradient(circle at 10% -10%, rgba(255, 179, 0, 0.08), transparent 34%),
    radial-gradient(circle at 100% 100%, rgba(36, 83, 209, 0.08), transparent 34%),
    linear-gradient(160deg, #0b0c12 0%, var(--vr-bg-main) 52%, #0c1018 100%) !important;
}

.editor-shell {
  background: transparent;
}

aside {
  width: 308px;
  background: linear-gradient(180deg, #171922 0%, #171a23 56%, #141821 100%);
  border-right: 1px solid var(--vr-border);
  box-shadow: 14px 0 42px rgba(0, 0, 0, 0.5);
}

.sidebar-brand {
  height: 84px;
  padding: 0 16px;
  border-bottom: 1px solid var(--vr-border);
}

.brand-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  margin-right: 10px;
  color: #101010;
  background: linear-gradient(135deg, #ffcb45 0%, var(--vr-accent) 58%, #e28a00 100%);
  box-shadow: 0 10px 22px rgba(255, 179, 0, 0.32);
  font-size: 0.78rem;
}

.brand-text h1 {
  font-size: 1.02rem;
  letter-spacing: 0.03em;
  color: var(--vr-text);
}

.brand-text h1 span {
  color: var(--vr-accent);
}

.brand-text .brand-sub {
  letter-spacing: 0.2em;
  font-size: 0.62rem;
  color: #717990;
}

nav {
  padding: 14px 10px 0;
}

nav .nav-list {
  gap: 6px;
}

.nav-item {
  padding: 11px 12px;
  border-radius: 11px;
  border-left: 3px solid transparent;
  border-top: 1px solid transparent;
  border-right: 1px solid transparent;
  border-bottom: 1px solid transparent;
  color: #8f96aa;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  background: transparent;
}

.nav-item:hover {
  color: #e8ebf2;
  background: rgba(255, 255, 255, 0.03);
  border-color: #2f3340;
}

.nav-item.active {
  color: var(--vr-text);
  border-color: #353a4a;
  border-left-color: var(--vr-accent);
  background: linear-gradient(90deg, rgba(255, 179, 0, 0.1), rgba(255, 179, 0, 0.02));
}

.nav-item .material-symbols-outlined {
  color: #b6bccb;
  font-size: 19px;
}

.nav-item.active .material-symbols-outlined {
  color: var(--vr-accent);
}

.sidebar-sep {
  margin: 12px 18px;
  background: linear-gradient(90deg, transparent, #2f3340, transparent);
}

.usb-section {
  padding: 0 10px 10px;
}

.usb-panel {
  border-radius: 10px;
  border: 1px solid var(--vr-border);
  background: linear-gradient(180deg, var(--vr-bg-panel) 0%, #10141d 100%);
  box-shadow: inset 0 1px 5px rgba(0, 0, 0, 0.68);
}

.usb-header {
  background: linear-gradient(180deg, #232733 0%, #1e232e 100%);
  border-bottom: 1px solid var(--vr-border);
  padding: 9px 11px;
}

.usb-header-left .material-symbols-outlined {
  color: var(--vr-accent);
}

.usb-header-left span:last-child {
  color: #d5dae7;
}

.usb-status[data-state="connected"] {
  background: rgba(34, 197, 94, 0.11);
  border-color: rgba(34, 197, 94, 0.32);
}

.usb-buttons {
  padding: 10px;
  gap: 7px;
}

.btn-connect {
  background: linear-gradient(180deg, var(--vr-accent) 0%, var(--vr-accent-2) 100%);
  border-color: rgba(255, 179, 0, 0.45);
  color: #111317;
}

.btn-connect:hover:not(:disabled) {
  box-shadow: 0 0 18px rgba(255, 179, 0, 0.36);
}

.btn-disconnect {
  border-color: #454b5e;
  background: linear-gradient(180deg, #333846 0%, #2a2f3d 100%);
  color: #b5bccd;
}

.usb-logs-area {
  background: #0c1314;
}

.usb-logs-area::before {
  background: rgba(22, 163, 74, 0.06);
}

.usb-logs-label {
  color: rgba(34, 197, 94, 0.36);
}

.usb-logs {
  color: rgba(34, 197, 94, 0.78);
}

.sidebar-footer {
  border-top: 1px solid var(--vr-border);
  background: rgba(9, 10, 15, 0.38);
}

.device-label {
  color: #8a91a6;
}

.main-content {
  background:
    radial-gradient(circle at 80% 10%, rgba(255, 179, 0, 0.04), transparent 32%),
    linear-gradient(180deg, #0d1018 0%, #0b0e15 100%);
}

iframe {
  background: transparent;
}

@media (max-width: 860px) {
  aside {
    width: 72px;
  }
}