.soe-shell {
  width: min(calc(100% - 32px), 1280px);
  margin: 20px auto 56px;
}

.soe-hero {
  padding: 26px 28px 24px;
}

.soe-topbar {
  margin-bottom: 18px;
}

.soe-nav {
  margin-left: auto;
}

.soe-hero h1 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 100;
  letter-spacing: -0.03em;
  line-height: 0.98;
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  max-width: 780px;
}

.soe-hero p {
  margin: 0 0 8px;
  color: var(--gray-600);
  font-size: 17px;
  line-height: 1.65;
  max-width: 720px;
}

.soe-controls {
  margin-top: 14px;
  display: inline-grid;
  gap: 6px;
}

.soe-controls label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--gray-500);
}

.soe-controls select {
  min-width: 300px;
  border: 1px solid var(--yma-line);
  border-radius: 12px;
  padding: 10px 12px;
  background: var(--yma-surface-strong);
}

.soe-shell .section {
  width: 100%;
}

.soe-workspace {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr) 320px;
  gap: 14px;
}

.soe-left,
.soe-main,
.soe-right {
  border-radius: var(--card-radius);
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(251, 250, 246, 0.96)),
    radial-gradient(circle at top left, rgba(137, 169, 255, 0.08), transparent 50%);
  border: 1px solid var(--yma-line-soft);
  box-shadow: var(--card-shadow);
}

.soe-left h3,
.soe-main h3,
.soe-right h3 {
  margin: 0 0 12px;
}

.soe-step-item {
  width: 100%;
  border: 1px solid var(--yma-line-soft);
  background: var(--yma-surface);
  border-radius: var(--inner-radius);
  padding: 12px;
  display: grid;
  gap: 8px;
  text-align: left;
  cursor: pointer;
  margin-bottom: 10px;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
}

.soe-step-item:hover {
  transform: translateY(-1px);
  box-shadow: var(--card-shadow);
}

.soe-step-item strong {
  font-size: 14px;
}

.soe-step-item .step-days {
  font-size: 12px;
  color: var(--gray-500);
  font-weight: 600;
}

.soe-step-item.active {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

.soe-step-item.active .chip {
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.3);
}

.soe-step-item.active .step-days {
  color: #d1d5db;
}

.soe-main h4,
.soe-right h4 {
  margin: 16px 0 8px;
  font-size: 12px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--gray-500);
}

.soe-main h5 {
  margin: 0 0 8px;
}

.soe-main ul,
.soe-right ul {
  margin: 0;
  padding-left: 18px;
}

.soe-main li,
.soe-right li {
  margin-bottom: 8px;
  color: var(--gray-700);
  line-height: 1.55;
}

.soe-objective {
  margin: 0;
  color: var(--gray-600);
  line-height: 1.7;
}

.function-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.function-card {
  border: 1px solid var(--yma-line-soft);
  border-radius: 14px;
  padding: 12px;
  background: var(--yma-paper);
}

.soe-right {
  position: sticky;
  top: 14px;
  align-self: start;
}

@media (max-width: 1120px) {
  .soe-workspace {
    grid-template-columns: 1fr;
  }

  .function-grid {
    grid-template-columns: 1fr;
  }

  .soe-right {
    position: static;
  }
}

@media (max-width: 920px) {
  .soe-topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .soe-nav {
    flex-wrap: wrap;
  }

  .soe-controls select {
    min-width: 0;
    width: 100%;
  }
}