.theme-empty-state,
.empty-state {
  display: grid;
  justify-items: center;
  gap: 0.85rem;
  text-align: center;
  padding: 4rem 2rem;
  color: var(--muted);
  border: 1px dashed rgba(15, 118, 110, 0.2);
  border-radius: var(--panel-radius);
  background:
    radial-gradient(circle at top center, rgba(45, 212, 191, 0.1), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(245, 250, 248, 0.98));
}

.theme-empty-state svg,
.empty-state svg {
  opacity: 0.38;
  margin-bottom: 0.35rem;
}

.theme-empty-state h2,
.empty-state h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
}

.theme-empty-state p,
.empty-state p {
  max-width: 42rem;
  line-height: 1.7;
}

.theme-empty-state--compact,
.empty-state-compact {
  padding: 2rem;
}

.manual-page {
  display: grid;
  gap: 1.5rem;
  padding-block: clamp(1.15rem, 2vw, 1.8rem) clamp(3rem, 5vw, 4.5rem);
}

.manual-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(280px, 0.82fr);
  gap: 1.25rem;
  align-items: start;
  padding: clamp(1.25rem, 2.5vw, 1.9rem);
  background:
    radial-gradient(circle at top right, rgba(45, 212, 191, 0.12), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(245, 250, 248, 0.96) 100%);
}

.manual-hero__copy,
.manual-hero__aside,
.manual-summary-card,
.manual-sidebar-card,
.manual-section,
.manual-card {
  display: grid;
  gap: 0.85rem;
  min-width: 0;
}

.manual-hero__title {
  max-width: 11ch;
  font-size: clamp(2.6rem, 4vw, 4rem);
  line-height: 0.96;
}

.manual-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.manual-hero__aside {
  padding: 1.1rem 1.15rem;
  border-radius: calc(var(--panel-radius) - 4px);
  background: rgba(15, 118, 110, 0.05);
  border: 1px solid rgba(15, 118, 110, 0.1);
}

.manual-hero__aside-title {
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-dark);
}

.manual-hero__list {
  display: grid;
  gap: 0.85rem;
  padding-left: 1.1rem;
  color: var(--muted);
  line-height: 1.65;
}

.manual-hero__list strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--text);
}

.manual-summary-grid {
  align-items: stretch;
}

.manual-summary-card {
  padding: 1.15rem;
  border-radius: calc(var(--panel-radius) - 6px);
  border: 1px solid rgba(16, 33, 31, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(244, 250, 247, 0.98) 100%);
  box-shadow: var(--shadow-sm);
}

.manual-summary-card__label {
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-dim);
}

.manual-summary-card h2 {
  font-size: 1.08rem;
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--text);
}

.manual-summary-card p,
.manual-sidebar-note,
.manual-section .theme-section-header p,
.manual-card p,
.manual-step-list,
.manual-bullet-list {
  color: var(--muted);
  line-height: 1.7;
}

.manual-layout {
  align-items: start;
}

.manual-sidebar,
.manual-content {
  min-width: 0;
}

.manual-sidebar {
  position: static;
  align-self: start;
}

.manual-sidebar-card {
  gap: 1rem;
}

.manual-sidebar-card--sticky {
  position: sticky;
  top: 96px;
  z-index: 2;
  align-self: start;
  max-height: min(34vh, 24rem);
  overflow: auto;
  overscroll-behavior: contain;
}

.manual-sidebar-card--info {
  position: relative;
}

.manual-sidebar-card .help-nav {
  gap: 0.2rem;
}

.manual-section {
  scroll-margin-top: 96px;
}

.manual-section h2 {
  max-width: 16ch;
  font-size: clamp(1.85rem, 3vw, 2.75rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
  color: var(--text);
}

.manual-step-list,
.manual-bullet-list {
  display: grid;
  gap: 0.85rem;
  padding-left: 1.2rem;
}

.manual-step-list li,
.manual-bullet-list li {
  min-width: 0;
}

.manual-step-list strong,
.manual-bullet-list strong,
.manual-card h3 {
  color: var(--text);
}

.manual-card-grid {
  align-items: stretch;
}

.manual-card {
  padding: 1.2rem;
  border-radius: 20px;
  border: 1px solid rgba(16, 33, 31, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(244, 250, 247, 0.96) 100%);
  box-shadow: var(--shadow-sm);
}

.manual-card h3 {
  font-size: 1.05rem;
  line-height: 1.24;
  letter-spacing: -0.02em;
}

@media (max-width: 1080px) {
  .manual-hero {
    grid-template-columns: 1fr;
  }

  .manual-hero__title,
  .manual-section h2 {
    max-width: none;
  }
}

@media (max-width: 980px) {
  .manual-layout {
    grid-template-columns: 1fr;
  }

  .manual-sidebar-card--sticky {
    top: 88px;
    max-height: min(38vh, 20rem);
  }
}

@media (max-width: 760px) {
  .manual-page {
    gap: 1.15rem;
    padding-block: 0.9rem 2.5rem;
  }

  .manual-summary-card,
  .manual-card {
    padding: 1rem;
  }

  .manual-section h2 {
    font-size: clamp(1.75rem, 7vw, 2.35rem);
  }

  .manual-sidebar-card--sticky {
    top: 76px;
    max-height: min(40vh, 18rem);
  }
}