/* Layout basics */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #f3f4ff 0, #f9fafb 45%, #edf2f7 100%);
  color: #111827;
}

.page {
  max-width: 1100px;
  margin: 32px auto 48px;
  padding: 0 16px;
}

/* Hero */
.hero-card {
  background: #111827;
  color: #f9fafb;
  border-radius: 18px;
  padding: 24px 24px 20px;
  margin-bottom: 24px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.35);
}

.hero-title {
  margin: 0 0 8px;
  font-size: 1.8rem;
  font-weight: 700;
}

.hero-subtitle {
  margin: 0;
  font-size: 0.95rem;
  opacity: 0.9;
}

.highlight {
  color: #60a5fa;
}

.code-chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  margin-left: 6px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.6);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.8rem;
}

/* Cards */
.card {
  background: #ffffff;
  border-radius: 14px;
  padding: 18px 18px 16px;
  margin-bottom: 18px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  border: 1px solid #e5e7eb;
}

.card-title {
  margin: 0 0 12px;
  font-size: 1.1rem;
  font-weight: 600;
  color: #111827;
}

/* Grids */
.grid {
  display: grid;
  gap: 18px;
  margin-bottom: 18px;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* Key-value rows */
.kv-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.9rem;
  padding: 3px 0;
  border-bottom: 1px dashed #e5e7eb;
}

.kv-row:last-child {
  border-bottom: none;
}

.kv-key {
  font-weight: 500;
  color: #4b5563;
}

.kv-value {
  margin-left: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  color: #111827;
}

/* Subsections inside cards */
.subsection {
  margin-top: 12px;
}

.subsection-title {
  margin: 0 0 4px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #111827;
}

.subsection-note {
  margin: 0 0 6px;
  font-size: 0.8rem;
  color: #9ca3af;
}

/* Lists */
.nice-list {
  margin: 0;
  padding-left: 18px;
  font-size: 0.9rem;
}

.nice-list li {
  padding: 2px 0;
}

/* Storage */
.storage-pre {
  background: #0b1220;
  color: #e5e7eb;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 0.8rem;
  overflow: auto;
  max-height: 260px;
}

.storage-chain {
  font-size: 0.9rem;
}

/* Navigation links */
.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-top: 4px;
}

.nav-link {
  display: block;
  padding: 10px 11px;
  border-radius: 10px;
  text-decoration: none;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  font-size: 0.9rem;
  color: #111827;
  transition: transform 0.08s ease, box-shadow 0.08s ease, border-color 0.08s ease;
}

.nav-link:hover {
  transform: translateY(-1px);
  border-color: #60a5fa;
  box-shadow: 0 12px 25px rgba(37, 99, 235, 0.15);
}

.nav-link-path {
  display: block;
  margin-top: 2px;
  font-size: 0.78rem;
  color: #6b7280;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

/* Footer */
.footer-note {
  margin-top: 10px;
  font-size: 0.8rem;
  text-align: center;
  color: #9ca3af;
}

/* Small-screen tweaks */
@media (max-width: 640px) {
  .hero-card {
    padding: 18px 14px 14px;
  }
  .hero-title {
    font-size: 1.4rem;
  }
}