/* Shared manual styles — Nanosoft Technology */
:root {
  --brand: #0b5fad;
  --brand-dark: #06325c;
  --accent: #00b4d8;
  --bg: #f4f7fb;
  --surface: #ffffff;
  --ink: #0d1b2a;
  --muted: #5a6b7d;
  --border: rgba(6, 50, 92, 0.1);
}

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

body {
  font-family: 'Outfit', system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
}

h1, h2, h3 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  line-height: 1.2;
}

a { color: var(--brand); }

.manual-header {
  background: linear-gradient(135deg, var(--brand-dark), var(--brand));
  color: #fff;
  padding: 1.5rem 2rem 2rem;
}

.back-link {
  display: inline-block;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 0.88rem;
  margin-bottom: 1.25rem;
}

.back-link:hover { color: #fff; }

.manual-header-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.manual-header .logo {
  height: 48px;
  filter: brightness(0) invert(1);
}

.manual-header h1 { font-size: 1.85rem; }
.subtitle { opacity: 0.9; font-size: 0.95rem; margin-top: 0.25rem; }

.manual-layout {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 2.5rem;
}

.toc {
  position: sticky;
  top: 1.5rem;
  align-self: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  font-size: 0.88rem;
}

.toc strong {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--brand-dark);
}

.toc a {
  display: block;
  padding: 0.35rem 0;
  text-decoration: none;
  color: var(--muted);
}

.toc a:hover { color: var(--brand); }

.manual-content section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem 2rem;
  margin-bottom: 1.25rem;
}

.manual-content h2 {
  font-size: 1.35rem;
  color: var(--brand-dark);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent);
}

.manual-content h3 {
  font-size: 1.05rem;
  margin: 1.25rem 0 0.5rem;
  color: var(--brand);
}

.manual-content p { margin-bottom: 0.85rem; color: var(--muted); }
.manual-content ol, .manual-content ul {
  margin: 0 0 1rem 1.25rem;
  color: var(--muted);
}

.manual-content li { margin-bottom: 0.4rem; }

.callout {
  background: rgba(0, 180, 216, 0.1);
  border-left: 4px solid var(--accent);
  padding: 1rem 1.15rem;
  border-radius: 0 8px 8px 0;
  margin: 1rem 0;
  font-size: 0.92rem;
  color: var(--ink);
}

.callout.warn {
  background: rgba(233, 163, 25, 0.12);
  border-left-color: #e9a319;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1rem 0;
}

th, td {
  border: 1px solid var(--border);
  padding: 0.6rem 0.85rem;
  text-align: left;
}

th {
  background: var(--bg);
  color: var(--brand-dark);
  font-weight: 600;
}

.manual-footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  margin-top: 1rem;
}

@media (max-width: 768px) {
  .manual-layout { grid-template-columns: 1fr; }
  .toc { position: static; }
}