/* Demo page — extends light style.css */

.demo-page .demo-header {
  padding: 1.5rem 0 0;
  border: none;
  margin-bottom: 0;
}

.demo-page h1 {
  font-size: 1.75rem;
}

/* Run log (terminal-style + explanations) */
.run-log-panel {
  margin-top: 1.25rem;
}

.run-log-panel h3 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
  border: none;
  padding: 0;
}

.run-log-panel .hint {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.85rem;
}

.run-log {
  background: #1a2332;
  color: #e7ecf3;
  border-radius: 10px;
  padding: 1rem 1.1rem;
  min-height: 10rem;
  max-height: 28rem;
  overflow-y: auto;
  font-size: 0.88rem;
}

.log-placeholder {
  color: #8b9cb3;
  margin: 0;
}

.log-entry {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #2d3a4f;
}

.log-entry:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.log-line {
  color: #93c5fd;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.log-meaning {
  color: #cbd5e1;
  font-size: 0.82rem;
  line-height: 1.45;
}

.log-meaning strong {
  color: #f1f5f9;
}

.log-extra {
  margin-top: 0.35rem;
  font-size: 0.75rem;
  color: #94a3b8;
}

.details-heading {
  margin: 2rem 0 0.75rem;
  font-size: 1rem;
  color: var(--muted);
  font-weight: 600;
}

.details-heading.hidden {
  display: none;
}

/* Demo page — didactic layout */

.demo-page .demo-header {
  border-bottom: none;
  margin-bottom: 0;
}

.demo-page .section-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin: 0 0 0.5rem;
}

.demo-page .lead {
  color: var(--muted);
  max-width: 42rem;
  margin: 0 0 1.25rem;
}

.demo-section {
  margin-bottom: 2.5rem;
}

.demo-section h2 {
  border-left: none;
  padding-left: 0;
  font-size: 1.25rem;
}

/* Pipeline diagram */
.pipeline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.25rem;
  padding: 1.25rem;
  background: var(--surface, #f0f4fa);
  border: 1px solid var(--border, #d8e2ef);
  border-radius: 12px;
  margin-top: 1rem;
}

.pipe-step {
  flex: 1 1 5.5rem;
  min-width: 5rem;
  padding: 0.65rem 0.5rem;
  border-radius: 8px;
  text-align: center;
  border: 1px solid transparent;
}

.pipe-title {
  display: block;
  font-weight: 700;
  font-size: 0.85rem;
}

.pipe-sub {
  display: block;
  font-size: 0.7rem;
  color: var(--muted);
  margin-top: 0.2rem;
}

.pipe-arrow {
  color: var(--muted);
  font-size: 1.1rem;
  flex: 0 0 auto;
}

.pipe-input { background: #e8f4fc; border-color: #b8daf0; }
.pipe-secret { background: #fff3e6; border-color: #f5d4a8; }
.pipe-proof { background: #f3ecfc; border-color: #d4c4f0; }
.pipe-verify { background: #e8f8ee; border-color: #b8e6c8; }
.pipe-output { background: var(--accent, #3b82f6); color: #fff; }
.pipe-output .pipe-sub { color: rgba(255,255,255,0.85); }

/* Glossary */
.glossary {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.glossary-card {
  background: var(--surface, #fff);
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 10px;
  padding: 1rem 1.1rem;
}

.glossary-card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  color: var(--text);
}

.glossary-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.5;
}

.glossary-warn {
  border-color: #f5d4a8;
  background: #fffbf5;
}

.glossary-warn h3 { color: #b45309; }

/* Run section */
.field-label {
  display: block;
  margin: 1rem 0 0.35rem;
}

.field-name {
  display: block;
  font-weight: 600;
  color: var(--text);
}

.field-hint {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

.demo-run input[type="text"] {
  width: 100%;
  max-width: 28rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 0.95rem;
  background: var(--surface, #fff);
  color: var(--text);
}

button.run {
  margin-top: 1rem;
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

button.run:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Step list */
.steps {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  max-width: 22rem;
}

.step {
  padding: 0.45rem 0.65rem;
  margin-bottom: 0.35rem;
  border-radius: 6px;
  font-size: 0.9rem;
  color: var(--muted);
  border-left: 3px solid var(--border);
}

.step.active {
  color: var(--text);
  background: rgba(59, 130, 246, 0.1);
  border-left-color: var(--accent);
  font-weight: 600;
}

.step.done {
  color: var(--ok, #16a34a);
  border-left-color: var(--ok, #16a34a);
}

.step.done::after {
  content: ' ✓';
}

/* Results */
.results {
  margin-top: 1.5rem;
  display: grid;
  gap: 1rem;
}

.results.hidden { display: none; }

.result-block {
  background: var(--surface, #fff);
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 10px;
  padding: 1rem 1.15rem;
}

.result-block-highlight {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.15);
}

.result-block h4 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.result-desc {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.result-dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 1rem;
  margin: 0;
  font-size: 0.88rem;
}

.result-dl dt {
  color: var(--muted);
  font-weight: 500;
}

.result-dl dd {
  margin: 0;
}

.mono {
  font-family: var(--mono);
  font-size: 0.8rem;
  word-break: break-all;
}

.truncate {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.error-card {
  margin-top: 1rem;
  color: #b91c1c;
  border-color: #fecaca;
  background: #fef2f2;
}

.error-card.hidden { display: none; }

@media (max-width: 640px) {
  .pipe-arrow { display: none; }
  .pipeline { flex-direction: column; }
  .pipe-step { width: 100%; }
}