.usage-hero {
  padding: 6rem 0 4rem;
  background:
    radial-gradient(circle at 86% 15%, rgba(47, 125, 89, 0.12), transparent 28%),
    radial-gradient(circle at 70% 10%, rgba(40, 116, 166, 0.13), transparent 35%),
    linear-gradient(180deg, #fbfdfe 0%, #f4f8fb 100%);
}

.usage-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: 4rem;
  align-items: center;
}

.usage-hero h1 {
  margin: 0;
  color: var(--sisat-blue-900);
  font-size: clamp(3.1rem, 6.7vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.99;
}

.usage-hero h1 span {
  color: var(--sisat-blue-700);
}

.usage-hero-grid > div:first-child > p {
  max-width: 760px;
  margin: 1.5rem 0 0;
  color: #4d6172;
  font-size: 1.18rem;
}

.usage-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.usage-hero-actions .btn-light {
  color: var(--sisat-blue-900);
  background: #fff;
  border-color: var(--sisat-line);
}

.usage-principle {
  padding: 2rem;
  color: #eaf4fa;
  background: var(--sisat-blue-900);
  border-radius: var(--sisat-radius-lg);
  box-shadow: var(--sisat-shadow);
}

.usage-principle-label {
  color: #9fd0eb;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.usage-principle > p {
  margin: 1rem 0 1.5rem;
  color: #fff;
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.4;
}

.principle-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.principle-flow span {
  padding: 0.45rem 0.7rem;
  color: #d7e7f0;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}

.usage-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 4.5rem;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--sisat-line);
  border-radius: var(--sisat-radius);
  box-shadow: var(--sisat-shadow-soft);
}

.usage-summary div {
  padding: 1.3rem 1.4rem;
}

.usage-summary div + div {
  border-left: 1px solid var(--sisat-line);
}

.usage-summary strong,
.usage-summary span {
  display: block;
}

.usage-summary strong {
  color: var(--sisat-blue-900);
  font-size: 1.1rem;
}

.usage-summary span {
  color: var(--sisat-muted);
  font-size: 0.82rem;
}

.workflow-navigation {
  padding: 5.5rem 0;
}

.workflow-jump-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.workflow-jump-grid a {
  min-height: 190px;
  padding: 1.35rem;
  color: var(--sisat-ink);
  background: #fff;
  border: 1px solid var(--sisat-line);
  border-radius: var(--sisat-radius);
  box-shadow: 0 10px 28px rgba(31, 41, 55, 0.045);
  text-decoration: none;
  transition: transform 170ms ease, border-color 170ms ease, box-shadow 170ms ease;
}

.workflow-jump-grid a:hover,
.workflow-jump-grid a:focus {
  transform: translateY(-4px);
  border-color: #a9c6d8;
  box-shadow: var(--sisat-shadow-soft);
}

.workflow-jump-grid span,
.workflow-jump-grid strong,
.workflow-jump-grid small {
  display: block;
}

.workflow-jump-grid span {
  color: #8aa0b1;
  font-size: 0.75rem;
  font-weight: 800;
}

.workflow-jump-grid strong {
  margin-top: 1.6rem;
  color: var(--sisat-blue-900);
  font-size: 1.08rem;
  line-height: 1.35;
}

.workflow-jump-grid small {
  margin-top: 0.8rem;
  color: var(--sisat-green);
  font-weight: 800;
}

.workflow-section {
  scroll-margin-top: 88px;
  padding: 6rem 0;
}

.workflow-section-soft {
  background: var(--sisat-soft);
}

.workflow-heading {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
  max-width: 980px;
}

.workflow-number {
  display: grid;
  width: 64px;
  height: 64px;
  place-items: center;
  color: var(--sisat-blue-700);
  background: var(--sisat-blue-100);
  border-radius: 18px;
  font-weight: 850;
}

.workflow-heading h2 {
  margin: 0;
  color: var(--sisat-blue-900);
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.workflow-heading p {
  max-width: 820px;
  margin: 1rem 0 0;
  color: var(--sisat-muted);
  font-size: 1.08rem;
}

.scenario-card {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1.5rem;
  max-width: 980px;
  margin: 2.3rem 0 2.5rem 104px;
  padding: 1.25rem 1.4rem;
  background: #e9f3f8;
  border: 1px solid #c8dce8;
  border-radius: 16px;
}

.scenario-card span {
  color: var(--sisat-blue-700);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scenario-card p {
  margin: 0;
  color: #40586a;
  font-weight: 650;
}

.workflow-content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(290px, 0.55fr);
  gap: 3rem;
  align-items: start;
  margin-left: 104px;
}

.workflow-steps {
  position: relative;
}

.workflow-steps::before {
  position: absolute;
  top: 22px;
  bottom: 22px;
  left: 21px;
  width: 2px;
  content: "";
  background: #cadbe5;
}

.workflow-step {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 1.2rem;
  padding-bottom: 1.7rem;
}

.workflow-step:last-child {
  padding-bottom: 0;
}

.workflow-step-number {
  position: relative;
  z-index: 1;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  color: #fff;
  background: var(--sisat-blue-700);
  border: 5px solid #fff;
  border-radius: 50%;
  font-size: 0.78rem;
  font-weight: 850;
}

.workflow-section-soft .workflow-step-number {
  border-color: var(--sisat-soft);
}

.workflow-step h3 {
  margin: 0.35rem 0 0;
  color: var(--sisat-blue-900);
  font-size: 1.13rem;
  font-weight: 800;
}

.workflow-step p {
  margin: 0.45rem 0 0;
  color: var(--sisat-muted);
}

.workflow-modules {
  position: sticky;
  top: 110px;
  padding: 1.6rem;
  background: #fff;
  border: 1px solid var(--sisat-line);
  border-radius: var(--sisat-radius);
  box-shadow: var(--sisat-shadow-soft);
}

.workflow-modules-heading {
  color: var(--sisat-blue-900);
  font-size: 0.85rem;
  font-weight: 850;
}

.workflow-modules ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1rem 0 1.2rem;
  padding: 0;
  list-style: none;
}

.workflow-modules li {
  padding: 0.48rem 0.7rem;
  color: #40586a;
  background: var(--sisat-soft);
  border: 1px solid var(--sisat-line);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}

.workflow-modules-link {
  font-size: 0.88rem;
  font-weight: 800;
  text-decoration: none;
}

.connected-platform-section {
  padding: 6rem 0;
  color: #eaf4fa;
  background: var(--sisat-blue-900);
}

.connected-platform-card {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 4rem;
  align-items: center;
}

.connected-platform-card h2 {
  margin: 0;
  color: #fff;
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.045em;
}

.connected-platform-card p {
  max-width: 760px;
  margin: 1rem 0 0;
  color: #cadde8;
  font-size: 1.05rem;
}

.connected-platform-points {
  display: grid;
  gap: 0.8rem;
}

.connected-platform-points div {
  padding: 1.1rem;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
}

.connected-platform-points strong,
.connected-platform-points span {
  display: block;
}

.connected-platform-points strong {
  color: #fff;
}

.connected-platform-points span {
  margin-top: 0.2rem;
  color: #bdd1dd;
  font-size: 0.88rem;
}

@media (max-width: 1199.98px) {
  .workflow-jump-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 991.98px) {
  .usage-hero-grid,
  .connected-platform-card {
    grid-template-columns: 1fr;
  }

  .usage-summary {
    grid-template-columns: repeat(2, 1fr);
  }

  .usage-summary div:nth-child(3) {
    border-left: 0;
  }

  .usage-summary div:nth-child(n+3) {
    border-top: 1px solid var(--sisat-line);
  }

  .scenario-card,
  .workflow-content-grid {
    margin-left: 0;
  }

  .workflow-content-grid {
    grid-template-columns: 1fr;
  }

  .workflow-modules {
    position: static;
  }
}

@media (max-width: 767.98px) {
  .usage-hero {
    padding: 4rem 0 3rem;
  }

  .usage-hero h1 {
    font-size: clamp(2.7rem, 13vw, 4.2rem);
  }

  .usage-hero-actions,
  .usage-hero-actions .btn {
    width: 100%;
  }

  .usage-summary,
  .workflow-jump-grid {
    grid-template-columns: 1fr;
  }

  .usage-summary div + div {
    border-top: 1px solid var(--sisat-line);
    border-left: 0;
  }

  .workflow-navigation,
  .workflow-section,
  .connected-platform-section {
    padding: 4.5rem 0;
  }

  .workflow-heading {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .workflow-number {
    width: 54px;
    height: 54px;
  }

  .scenario-card {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}