.protocol-doc-page {
  background: #eef2f7;
  color: #101827;
}

.protocol-doc-hero {
  background: #151a27;
  color: #fff;
  padding: 72px 24px 54px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.protocol-doc-hero-inner,
.protocol-doc-shell {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.protocol-doc-kicker,
.protocol-doc-source-label,
.protocol-doc-toc-title {
  font-family: "DM Mono", "SFMono-Regular", Consolas, monospace;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 11px;
  font-weight: 700;
}

.protocol-doc-kicker {
  color: #ccff66;
}

.protocol-doc-title {
  max-width: 880px;
  margin: 14px 0 16px;
  font-size: clamp(38px, 6vw, 76px);
  line-height: 0.94;
  letter-spacing: 0;
}

.protocol-doc-subtitle {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
  line-height: 1.6;
}

.protocol-doc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.protocol-doc-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
  text-decoration: none;
  font-weight: 800;
}

.protocol-doc-actions a:first-child {
  background: #ccff66;
  border-color: #ccff66;
  color: #101827;
}

.protocol-doc-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 28px;
  padding: 34px 0 76px;
}

.protocol-doc-card,
.protocol-doc-sidebar {
  background: #fff;
  border: 1px solid #d8e0ec;
  border-top: 4px solid #3b82f6;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
}

.protocol-doc-card {
  padding: clamp(24px, 4vw, 46px);
}

.protocol-doc-sidebar {
  align-self: start;
  position: sticky;
  top: 18px;
  padding: 18px;
}

.protocol-doc-source-label,
.protocol-doc-toc-title {
  color: #2458b8;
}

.protocol-doc-source {
  padding-top: 14px;
  margin-top: 18px;
  border-top: 1px solid #e3e8f1;
}

.protocol-doc-source a,
.protocol-doc-toc a {
  color: #174ea6;
  font-weight: 800;
  text-decoration: none;
}

.protocol-doc-source p {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.5;
  color: #4b5565;
}

.protocol-doc-toc ul {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: grid;
  gap: 9px;
}

.protocol-doc-toc a {
  display: block;
  font-size: 13px;
  line-height: 1.35;
}

.protocol-doc-content {
  font-size: 16px;
  line-height: 1.72;
}

.protocol-doc-content h1 {
  margin: 0 0 24px;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.04;
  letter-spacing: 0;
}

.protocol-doc-content h2 {
  margin: 42px 0 14px;
  padding-top: 8px;
  border-top: 1px solid #e3e8f1;
  font-size: 26px;
  line-height: 1.15;
  letter-spacing: 0;
}

.protocol-doc-content h3 {
  margin: 28px 0 10px;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: 0;
}

.protocol-doc-content p {
  margin: 0 0 16px;
}

.protocol-doc-content ul,
.protocol-doc-content ol {
  margin: 0 0 18px;
  padding-left: 24px;
}

.protocol-doc-content li {
  margin: 7px 0;
}

.protocol-doc-content code {
  padding: 2px 6px;
  border-radius: 6px;
  background: #eef4ff;
  color: #123f88;
  font-family: "DM Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.92em;
}

.protocol-doc-content pre {
  overflow-x: auto;
  padding: 18px;
  border-radius: 8px;
  background: #101827;
  color: #e5eefc;
}

.protocol-doc-content blockquote {
  margin: 22px 0;
  padding: 16px 18px;
  border-left: 4px solid #ccff66;
  background: #f6f9fe;
}

.protocol-doc-content a {
  color: #174ea6;
  font-weight: 800;
}

.protocol-doc-footer {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid #e3e8f1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.protocol-doc-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 8px;
  border: 1px solid #cdd8ea;
  color: #174ea6;
  text-decoration: none;
  font-weight: 800;
}

@media (max-width: 900px) {
  .protocol-doc-hero-inner,
  .protocol-doc-shell {
    width: min(100% - 28px, 680px);
  }

  .protocol-doc-shell {
    grid-template-columns: 1fr;
  }

  .protocol-doc-sidebar {
    position: static;
    order: -1;
  }
}