.ooa-guide-nav-shell {
  --ooa-guide-nav-width: 220px;
  --ooa-guide-nav-bg: #05121b;
  --ooa-guide-nav-line: rgba(90, 120, 140, 0.18);
  --ooa-guide-nav-muted: #9aa5b0;
  --ooa-guide-nav-text: #c8cdd3;
  --ooa-guide-nav-gold: #d6c8a6;
  --ooa-guide-nav-cyan: #6eb4d4;
}

body.ooa-guide-nav-ready {
  padding-left: var(--ooa-guide-nav-width, 220px);
}

.ooa-guide-sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 1000;
  width: var(--ooa-guide-nav-width, 220px);
  height: 100vh;
  height: 100dvh;
  overflow-y: auto;
  padding: 14px 10px 18px;
  color: var(--ooa-guide-nav-text);
  background:
    linear-gradient(180deg, rgba(6, 21, 31, 0.98), rgba(4, 15, 23, 0.99)),
    var(--ooa-guide-nav-bg);
  border-right: 1px solid var(--ooa-guide-nav-line);
  box-shadow: 8px 0 28px rgba(0, 0, 0, 0.2);
  font-family: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
}

.ooa-guide-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 2px 6px 14px;
  margin-bottom: 8px;
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(90, 120, 140, 0.14);
}

.ooa-guide-brand:hover { color: inherit; }

.ooa-guide-brand img {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  padding: 5px;
  object-fit: contain;
  image-rendering: pixelated;
  background: linear-gradient(145deg, #143040, #0a1a24);
  border: 1px solid rgba(185, 156, 90, 0.42);
  border-radius: 9px;
}

.ooa-guide-brand__text { min-width: 0; }
.ooa-guide-brand__name {
  overflow: hidden;
  color: var(--ooa-guide-nav-gold);
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.07em;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ooa-guide-brand__sub {
  margin-top: 3px;
  color: var(--ooa-guide-nav-cyan);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.ooa-guide-nav { display: flex; flex-direction: column; gap: 2px; }
.ooa-guide-nav__group { padding: 5px 0 7px; }
.ooa-guide-nav__group + .ooa-guide-nav__group { border-top: 1px solid rgba(90, 120, 140, 0.12); }
.ooa-guide-nav__label {
  padding: 4px 10px 5px;
  color: #a7b5c0;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.ooa-guide-nav__link {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  padding: 8px 10px;
  color: var(--ooa-guide-nav-muted);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.25;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 7px;
}
.ooa-guide-nav__link:hover {
  color: var(--ooa-guide-nav-text);
  background: rgba(89, 160, 195, 0.08);
}
.ooa-guide-nav__link.is-active {
  color: var(--ooa-guide-nav-text);
  background: linear-gradient(90deg, rgba(15, 44, 72, 0.96), rgba(15, 44, 72, 0.3));
  border-color: rgba(61, 126, 196, 0.25);
  box-shadow: inset 2.5px 0 0 #3d7ec4;
}
.ooa-guide-nav__icon {
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
  opacity: 0.8;
}
.ooa-guide-nav__link.is-active .ooa-guide-nav__icon { color: var(--ooa-guide-nav-cyan); opacity: 1; }

.ooa-guide-nav__foot {
  margin-top: 12px;
  padding: 12px 10px 0;
  color: var(--ooa-guide-nav-muted);
  font-size: 11px;
  line-height: 1.5;
  border-top: 1px solid rgba(90, 120, 140, 0.12);
}
.ooa-guide-nav__foot a { color: var(--ooa-guide-nav-cyan); }

.ooa-guide-menu-button {
  display: none;
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1002;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 9px 13px;
  color: #d6c8a6;
  background: rgba(5, 18, 27, 0.96);
  border: 1px solid rgba(185, 156, 90, 0.32);
  border-radius: 9px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  font: 600 12px/1 "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
}
.ooa-guide-menu-button svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.ooa-guide-nav-backdrop { display: none; position: fixed; inset: 0; z-index: 999; background: rgba(0, 0, 0, 0.58); }

@media (max-width: 860px) {
  body.ooa-guide-nav-ready { padding-left: 0; }
  body.ooa-guide-nav-ready > .wrap { padding-top: 70px; }
  .ooa-guide-sidebar {
    width: min(280px, 86vw);
    transform: translateX(-105%);
    transition: transform 0.2s ease;
  }
  .ooa-guide-sidebar.is-open { transform: translateX(0); }
  .ooa-guide-menu-button { display: inline-flex; }
  .ooa-guide-nav-backdrop.is-open { display: block; }
  body.ooa-guide-nav-open { overflow: hidden; }
}

@media print {
  body.ooa-guide-nav-ready { padding-left: 0; }
  .ooa-guide-sidebar, .ooa-guide-menu-button, .ooa-guide-nav-backdrop { display: none !important; }
}