/* Industrial textured sections */
.section-industrial {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(245, 247, 249, 0.92) 0%, rgba(238, 245, 251, 0.95) 100%),
    url("../images/pattern-coil-tile.png");
  background-size: auto, 320px 180px;
  background-repeat: repeat;
  border-top: 1px solid rgba(0, 108, 240, 0.2);
  border-bottom: 1px solid rgba(0, 108, 240, 0.2);
}
.section-industrial::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 108, 240, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 108, 240, 0.05) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
}
.section-industrial::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 10% 20%, rgba(0, 108, 240, 0.1), transparent 55%),
    radial-gradient(ellipse 50% 45% at 90% 80%, rgba(0, 86, 214, 0.1), transparent 55%);
  pointer-events: none;
  z-index: 0;
}
.section-industrial > .container {
  position: relative;
  z-index: 1;
}

/* Corner bolts */
.bolt-corners {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}
.bolt {
  position: absolute;
  width: 22px;
  height: 22px;
  color: var(--blue-bright);
  opacity: 0.65;
}
.bolt--tl { top: 1.1rem; left: 1.1rem; }
.bolt--tr { top: 1.1rem; right: 1.1rem; }
.bolt--bl { bottom: 1.1rem; left: 1.1rem; }
.bolt--br { bottom: 1.1rem; right: 1.1rem; }
.bolt svg {
  width: 100%;
  height: 100%;
  display: block;
  filter: drop-shadow(0 1px 2px rgba(6, 26, 46, 0.2));
}

/* Industrial panel variant for nested cards/lists */
.section-industrial .why-list li {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(0, 108, 240, 0.18);
  border-bottom: 1px solid rgba(0, 108, 240, 0.18);
  padding-left: 2.25rem;
  padding-right: 1rem;
  margin-bottom: 0.45rem;
  backdrop-filter: blur(2px);
}
.section-industrial .why-list li:last-child {
  margin-bottom: 0;
}
.section-industrial .feature-list li {
  background: rgba(255, 255, 255, 0.7);
  border-bottom-color: rgba(0, 108, 240, 0.18);
  padding-right: 0.75rem;
}
.section-industrial .img-placeholder {
  background:
    linear-gradient(160deg, rgba(255,255,255,0.85), rgba(0, 108, 240, 0.12)),
    url("../images/pattern-coil-tile.png");
  background-size: auto, 240px 135px;
  box-shadow: var(--shadow-blue);
}
.section-industrial .use-case {
  background:
    linear-gradient(135deg, rgba(0, 108, 240, 0.16) 0%, rgba(255,255,255,0.9) 45%),
    rgba(255, 255, 255, 0.82);
  border-color: rgba(0, 108, 240, 0.4);
  backdrop-filter: blur(2px);
}
.section-industrial .use-case:hover {
  border-color: rgba(0, 139, 255, 0.65);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.9) inset,
    0 0 0 1px rgba(0, 139, 255, 0.28),
    0 12px 28px rgba(0, 108, 240, 0.24);
}

@media (max-width: 768px) {
  .bolt { width: 16px; height: 16px; opacity: 0.4; }
  .bolt--tl, .bolt--tr { top: 0.75rem; }
  .bolt--bl, .bolt--br { bottom: 0.75rem; }
  .bolt--tl, .bolt--bl { left: 0.75rem; }
  .bolt--tr, .bolt--br { right: 0.75rem; }
}