/* صور الدليل التقني */
.tech-hero-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
  margin-bottom: 8px;
}
.tech-hero-copy { min-width: 0; }
.tech-hero-media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow);
}
.tech-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.tech-hero-media figcaption {
  padding: 10px 14px;
  font-size: 0.82rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  background: #f8fafc;
}
.tech-sec-media {
  margin: 18px 0 8px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow);
}
.tech-sec-media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
}
.tech-sec-media--contain img {
  object-fit: contain;
  max-height: 360px;
  background: #0f172a;
  padding: 18px;
}
.tech-sec-media figcaption {
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}
.tech-media-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 18px 0;
}
.tech-media-duo .tech-sec-media { margin: 0; }
@media (max-width: 880px) {
  .tech-hero-layout { grid-template-columns: 1fr; }
  .tech-hero-media { max-width: 480px; margin-inline: auto; }
  .tech-media-duo { grid-template-columns: 1fr; }
}

/* فهرس الأقسام — أعمدة مع ترقيم رأسي (يتدفق للأسفل ثم العمود التالي) */
.tech-panels-guide .tp-toc,
.tech-controller-guide .tc-toc,
.tech-inverter-guide .ti-toc {
  position: relative !important;
  top: auto !important;
  z-index: 5;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  margin: 20px 0 28px;
  padding: 18px 16px;
  box-shadow: var(--shadow);
  overflow: visible;
}
.tech-panels-guide .tp-toc .in,
.tech-controller-guide .tc-toc .rail,
.tech-inverter-guide .ti-toc .rail {
  display: block !important;
  columns: 3;
  column-gap: 12px;
  padding: 0 !important;
  max-width: none !important;
  margin: 0 !important;
  overflow: visible !important;
  white-space: normal;
}
.tech-panels-guide .tp-toc a,
.tech-controller-guide .tc-toc a,
.tech-inverter-guide .ti-toc a {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: unset !important;
  width: 100%;
  box-sizing: border-box;
  color: var(--text) !important;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 800;
  line-height: 1.45;
  padding: 12px 14px !important;
  border-radius: 12px !important;
  border: 1px solid var(--border) !important;
  background: #f8fafc !important;
  white-space: normal !important;
  margin: 0 0 8px;
  break-inside: avoid;
  -webkit-column-break-inside: avoid;
  page-break-inside: avoid;
  transition: border-color .15s, background .15s, transform .15s;
}
.tech-panels-guide .tp-toc a:hover,
.tech-panels-guide .tp-toc a:focus-visible,
.tech-controller-guide .tc-toc a:hover,
.tech-controller-guide .tc-toc a:focus-visible,
.tech-inverter-guide .ti-toc a:hover,
.tech-inverter-guide .ti-toc a:focus-visible {
  color: var(--text) !important;
  border-color: var(--accent) !important;
  background: rgba(180, 134, 0, 0.1) !important;
  outline: none;
  transform: translateY(-1px);
}
.tech-panels-guide .tp-toc a .sb-icon,
.tech-controller-guide .tc-toc a .n,
.tech-inverter-guide .ti-toc a .n,
.tech-panels-guide .tp-toc a .n {
  flex: 0 0 auto;
  color: var(--gold) !important;
  font-weight: 700;
  min-width: 1.8em;
}
@media (max-width: 820px) {
  .tech-panels-guide .tp-toc .in,
  .tech-controller-guide .tc-toc .rail,
  .tech-inverter-guide .ti-toc .rail {
    columns: 2;
  }
}
@media (max-width: 520px) {
  .tech-panels-guide .tp-toc .in,
  .tech-controller-guide .tc-toc .rail,
  .tech-inverter-guide .ti-toc .rail {
    columns: 1;
  }
  .tech-panels-guide .tp-toc a,
  .tech-controller-guide .tc-toc a,
  .tech-inverter-guide .ti-toc a {
    font-size: 1rem;
    padding: 14px 16px !important;
  }
}