/* SPDE page styles */

.content-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

/* Boxes */
.box {
  background: #ffffff;
  border: 1px solid rgba(2,6,23,0.10);
  border-radius: 1rem;
  padding: 1.5rem 1.8rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 6px 16px rgba(2,6,23,0.06);
}

.box h2 {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: 1.4rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.box h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.75rem;
  color: #334155;
}

.box h4 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0.5rem 0;
  color: #475569;
}

.box p {
  color: #475569;
  line-height: 1.65;
  margin-bottom: 0.75rem;
}

.box ul {
  color: #475569;
  margin: 0.5rem 0 1rem 1.2rem;
  line-height: 1.7;
}

.box ul li {
  margin-bottom: 0.3rem;
}

/* Math blocks */
.math-block {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  padding: 1rem 1.5rem;
  margin: 1rem 0;
  overflow-x: auto;
  text-align: center;
}

/* Highlight box */
.highlight-box {
  background: linear-gradient(135deg, rgba(14,165,168,0.12), rgba(59,130,246,0.08));
  border-left: 4px solid #0ea5a8;
  border-radius: 0 0.5rem 0.5rem 0;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  line-height: 1.7;
}

/* Tip box */
.tip-box {
  background: #f0fdf4;
  border-left: 4px solid #22c55e;
  border-radius: 0 0.5rem 0.5rem 0;
  padding: 0.75rem 1rem;
  margin: 1rem 0;
  color: #166534;
}

/* Warning box */
.warning-box {
  background: #fef3c7;
  border-left: 4px solid #f59e0b;
  border-radius: 0 0.5rem 0.5rem 0;
  padding: 0.75rem 1rem;
  margin: 1rem 0;
  color: #92400e;
}

/* Code blocks */
.code-block {
  background: #1e293b;
  color: #e2e8f0;
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  overflow-x: auto;
  margin: 0.75rem 0;
  white-space: pre;
}

.code-block .comment {
  color: #94a3b8;
}

/* Parameter table */
.param-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}

.param-table th {
  background: #f1f5f9;
  text-align: left;
  padding: 0.75rem;
  font-weight: 600;
  border-bottom: 2px solid #e2e8f0;
}

.param-table td {
  padding: 0.75rem;
  border-bottom: 1px solid #e2e8f0;
  color: #475569;
}

.param-table code {
  background: #f1f5f9;
  padding: 0.15rem 0.4rem;
  border-radius: 0.25rem;
  font-size: 0.85em;
}

/* Workflow steps */
.workflow-steps {
  margin: 1.5rem 0;
}

.workflow-step {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, #0ea5a8, #3b82f6);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.step-content {
  flex: 1;
  padding-top: 0.25rem;
}

.step-content h4 {
  margin: 0 0 0.5rem;
  color: #1e293b;
}

.step-content p {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
}

.step-content .code-block {
  margin: 0.5rem 0 0;
  font-size: 0.8rem;
}

/* References list */
.ref-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ref-list li {
  margin-bottom: 0.75rem;
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.9rem;
  color: #64748b;
}

.ref-list li::before {
  content: '\2022';
  position: absolute;
  left: 0;
  color: #0ea5a8;
  font-weight: bold;
}

.ref-list em {
  font-style: italic;
}

/* Responsive */
@media (max-width: 680px) {
  .box {
    padding: 1.2rem 1rem;
  }

  .workflow-step {
    flex-direction: column;
    gap: 0.5rem;
  }

  .step-number {
    width: 2rem;
    height: 2rem;
    font-size: 0.95rem;
  }

  .math-block {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
  }
}