.itl-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.6rem;
}

.itl-chapters {
  padding-top: 0.6rem;
}

.itl-chapter {
  padding: 3.2rem 0;
}

.itl-chapter--alt {
  background: rgba(255, 255, 255, 0.02);
}

.itl-chapter + .itl-chapter {
  position: relative;
  padding-top: 4.8rem;
}

.itl-chapter + .itl-chapter::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 1px;
  height: 3.6rem;
  background: linear-gradient(to bottom, rgba(34, 197, 94, 0.55), rgba(34, 197, 94, 0.06));
}

.itl-chapter-grid {
  display: grid;
  grid-template-columns: minmax(220px, 300px) 1fr;
  gap: 2.6rem;
  align-items: center;
}

.itl-chapter--alt .itl-chapter-grid {
  grid-template-columns: 1fr minmax(220px, 300px);
}

.itl-chapter--alt .itl-figure {
  order: 2;
}

.itl-figure {
  position: relative;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-green);
  border: 1px solid var(--c-border-green, rgba(34, 197, 94, 0.3));
  background-image:
    linear-gradient(rgba(34, 197, 94, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 197, 94, 0.05) 1px, transparent 1px),
    linear-gradient(160deg, rgba(34, 197, 94, 0.09), rgba(10, 14, 39, 0.5) 70%);
  background-size: 30px 30px, 30px 30px, cover;
}

.itl-figure::before,
.itl-figure::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 0 solid var(--c-green);
}

.itl-figure::before {
  top: -1px;
  left: -1px;
  border-top-width: 2px;
  border-left-width: 2px;
}

.itl-figure::after {
  bottom: -1px;
  right: -1px;
  border-bottom-width: 2px;
  border-right-width: 2px;
}

.itl-figure svg {
  width: 76px;
  height: 76px;
  stroke-width: 1.3;
}

.itl-panel {
  position: relative;
  padding: 2.3rem 2.5rem;
  background: var(--c-surface-2, rgba(10, 14, 39, 0.55));
  border: 1px solid var(--c-border-soft, rgba(148, 163, 184, 0.22));
}

.itl-index {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--c-green-light);
}

.itl-index span {
  color: var(--c-text-dim);
}

.itl-panel h3 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: #fff;
}

.itl-lead {
  margin: 0 0 0.6rem;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-text-strong, #f8fafc);
}

.itl-body {
  margin: 0 0 1.3rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text-muted);
}

.itl-list {
  list-style: none;
  margin: 0 0 1.7rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.itl-list li {
  padding: 0.42rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--c-green-pale, #bbf7d0);
  background: rgba(34, 197, 94, 0.07);
  border: 1px solid rgba(34, 197, 94, 0.28);
}

.itl-limit {
  max-width: 860px;
  margin: 0 auto;
  padding: 1.9rem 2.1rem;
  background: var(--c-surface-1, rgba(255, 255, 255, 0.03));
  border: 1px solid var(--c-border-soft, rgba(148, 163, 184, 0.22));
  border-left: 3px solid var(--c-green);
}

.itl-limit-kicker {
  margin: 0 0 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--c-green-light);
}

.itl-limit-title {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
}

.itl-limit-text {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text-muted);
}

.itl-jump {
  margin-top: 4.2rem;
  margin-bottom: 1.4rem;
  display: flex;
  justify-content: center;
}

.itl-jump .sp-btn {
  padding: 1.05rem 2.2rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  border-width: 1px;
  border-color: rgba(134, 239, 172, 0.55);
  background-color: rgba(34, 197, 94, 0.06);
}

.itl-jump .sp-btn:hover {
  border-color: var(--c-green);
  background-color: rgba(34, 197, 94, 0.14);
}

.itl-limit {
  margin-top: 1rem;
}

@media (max-width: 860px) {
  .itl-chapter {
    padding: 2.4rem 0;
  }
  .itl-chapter + .itl-chapter {
    padding-top: 4rem;
  }
  .itl-chapter-grid,
  .itl-chapter--alt .itl-chapter-grid {
    grid-template-columns: 1fr;
    gap: 1.6rem;
  }
  .itl-chapter--alt .itl-figure {
    order: 0;
  }
  .itl-figure {
    width: 100%;
    max-width: 220px;
    margin: 0 auto;
  }
  .itl-figure svg {
    width: 62px;
    height: 62px;
  }
  .itl-panel {
    padding: 1.7rem 1.4rem;
  }
  .itl-limit {
    padding: 1.5rem 1.3rem;
  }
  .itl-jump .sp-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (forced-colors: active) {
  .itl-panel,
  .itl-figure,
  .itl-limit,
  .itl-list li {
    border-color: CanvasText;
  }
}

.itl-figure--netzwerk,
.itl-figure--security,
.itl-figure--monitoring,
.itl-figure--backup,
.itl-figure--support,
.itl-figure--arbeitsplatz {
  background-size: cover, cover;
  background-position: center, center;
  border-color: rgba(255, 255, 255, 0.12);
}

.itl-figure--netzwerk svg,
.itl-figure--security svg,
.itl-figure--monitoring svg,
.itl-figure--backup svg,
.itl-figure--support svg,
.itl-figure--arbeitsplatz svg {
  display: none;
}

.itl-figure--netzwerk {
  background-image:
    var(--paper-grain),
    linear-gradient(180deg, rgba(9, 14, 38, 0.6), rgba(9, 14, 38, 0.86)),
    url("../../img/unsplash/netzwerk.c35024531c8a.webp");
  background-size: var(--paper-grain-size), auto, cover;
  background-repeat: repeat, no-repeat, no-repeat;
  background-position: 0 0, center, center;
}

.itl-figure--security {
  background-image:
    var(--paper-grain),
    linear-gradient(180deg, rgba(9, 14, 38, 0.46), rgba(9, 14, 38, 0.72)),
    url("../../img/unsplash/security.c6b9c6e6fb03.webp");
  background-size: var(--paper-grain-size), auto, cover;
  background-repeat: repeat, no-repeat, no-repeat;
  background-position: 0 0, center, center;
}

.itl-figure--monitoring {
  background-image:
    var(--paper-grain),
    linear-gradient(180deg, rgba(9, 14, 38, 0.6), rgba(9, 14, 38, 0.88)),
    url("../../img/unsplash/monitoring.6c0e7b4cdf5e.webp");
  background-size: var(--paper-grain-size), auto, cover;
  background-repeat: repeat, no-repeat, no-repeat;
  background-position: 0 0, center, center;
}

.itl-figure--backup {
  background-image:
    var(--paper-grain),
    linear-gradient(180deg, rgba(9, 14, 38, 0.5), rgba(9, 14, 38, 0.8)),
    url("../../img/unsplash/racks.58ac3109ca9a.webp");
  background-size: var(--paper-grain-size), auto, cover;
  background-repeat: repeat, no-repeat, no-repeat;
  background-position: 0 0, center, center;
}

.itl-figure--support {
  background-image:
    var(--paper-grain),
    linear-gradient(180deg, rgba(9, 14, 38, 0.76), rgba(9, 14, 38, 0.92)),
    url("../../img/unsplash/team.520ea49789db.webp");
  background-size: var(--paper-grain-size), auto, cover;
  background-repeat: repeat, no-repeat, no-repeat;
  background-position: 0 0, center, center;
}

.itl-figure--arbeitsplatz {
  background-image:
    var(--paper-grain),
    linear-gradient(180deg, rgba(9, 14, 38, 0.54), rgba(9, 14, 38, 0.82)),
    url("../../img/unsplash/workspace.0c93bba505a3.webp");
  background-size: var(--paper-grain-size), auto, cover;
  background-repeat: repeat, no-repeat, no-repeat;
  background-position: 0 0, center, center;
}

.itl-special-photo {
  background-image:
    var(--paper-grain),
    linear-gradient(105deg, rgba(10, 15, 40, 0.96) 42%, rgba(10, 15, 40, 0.78)),
    url("../../img/unsplash/regulated.3d38eba0929e.webp");
  background-size: var(--paper-grain-size), auto, cover;
  background-repeat: repeat, no-repeat, no-repeat;
  background-position: 0 0, center, center right;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 2px solid var(--c-green);
}

.itl-special-photo .sp-special-glow,
.itl-special-photo .sp-special-grid {
  display: none;
}

.itl-os {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 0;
  margin-top: 1.6rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.itl-os-photo {
  background-image:
    var(--paper-grain),
    linear-gradient(180deg, rgba(9, 14, 38, 0.42), rgba(9, 14, 38, 0.74)),
    url("../../img/unsplash/opensource.fa67ef1f3519.webp");
  background-size: var(--paper-grain-size), auto, cover;
  background-repeat: repeat, no-repeat, no-repeat;
  background-position: 0 0, center, center;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  min-height: 180px;
}

.itl-os-body {
  padding: 1.7rem 1.9rem 1.8rem;
  background: #0a0f28;
}

.itl-os-kicker {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--c-green-light);
}

.itl-os-body p + p {
  margin-top: 0.9rem;
}

.itl-os-body p:not(.itl-os-kicker) {
  margin-bottom: 0;
  font-size: 0.99rem;
  line-height: 1.7;
  color: rgba(226, 232, 240, 0.88);
  max-width: 62ch;
}

@media (max-width: 860px) {
  .itl-os { grid-template-columns: 1fr; }
  .itl-os-photo { min-height: 130px; border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
  .itl-os-body { padding: 1.4rem 1.3rem 1.5rem; }
}

@media (forced-colors: active) {
  .itl-os { border-color: CanvasText; }
  .itl-os-photo { display: none; }
}