.documentation-page {
  padding: 4rem 0;
  background:
    radial-gradient(circle at top, rgba(43, 108, 176, 0.10), transparent 40%),
    linear-gradient(180deg, #f8fbff 0%, #eef4fb 100%);
}

.documentation-container {
  display: flex;
  justify-content: center;
}

.documentation-shell {
  width: 100%;
  max-width: 1180px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.documentation-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.documentation-kicker {
  margin: 0;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  background: rgba(43, 108, 176, 0.12);
  color: #2457a6;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.documentation-header h1 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.1;
  color: #10233d;
}

.documentation-subtitle {
  margin: 0;
  max-width: 820px;
  color: #51617a;
  font-size: 1.05rem;
  line-height: 1.65;
}

.documentation-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.documentation-sidebar {
  position: sticky;
  top: 1.5rem;
}

.documentation-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(16, 35, 61, 0.08);
  border-radius: 22px;
  box-shadow: 0 16px 40px rgba(16, 35, 61, 0.08);
  backdrop-filter: blur(6px);
  padding: 1.5rem 1.4rem;
}

.documentation-card h2 {
  margin: 0 0 1rem;
  color: #10233d;
  font-size: 1.25rem;
}

.documentation-nav {
  display: grid;
  gap: 0.65rem;
}

.documentation-nav a {
  display: block;
  padding: 0.8rem 0.95rem;
  border-radius: 14px;
  color: #2457a6;
  text-decoration: none;
  font-weight: 700;
  background: #f6f9fd;
  border: 1px solid rgba(16, 35, 61, 0.06);
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.documentation-nav a:hover {
  transform: translateY(-1px);
  background: #eaf2ff;
  color: #183d79;
}

.documentation-content {
  display: grid;
  gap: 1.25rem;
}

.documentation-content .documentation-card p {
  margin: 0;
  color: #62738a;
  line-height: 1.7;
}

.documentation-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.documentation-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  background: #f6f9fd;
  border: 1px solid rgba(16, 35, 61, 0.06);
}

.documentation-list strong {
  color: #62738a;
  font-weight: 700;
}

.documentation-list span {
  color: #10233d;
  font-weight: 700;
  text-align: right;
}

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

  .documentation-sidebar {
    position: static;
  }
}

@media (max-width: 560px) {
  .documentation-page {
    padding: 2.5rem 0;
  }

  .documentation-card {
    padding: 1.25rem 1rem;
    border-radius: 18px;
  }

  .documentation-list li {
    flex-direction: column;
    align-items: flex-start;
  }

  .documentation-list span {
    text-align: left;
  }
}