:root {
  --bg: #ffffff;
  --ink: #1d1d1f;
  --muted: #4a4a4a;
  --accent: #0b57d0;
  --stroke: #e5e5e5;
  --card: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

.page {
  max-width: 840px;
  margin: 0 auto;
  padding: 48px 20px 64px;
}

.hero__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.brand-name {
  color: var(--accent);
}

h1 {
  font-family: "Source Serif 4", "Times New Roman", serif;
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin: 16px 0 12px;
  line-height: 1.2;
}

.hero__lede {
  font-size: 1.05rem;
  max-width: 760px;
  color: var(--muted);
}

.meta-line {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 16px;
}

.section {
  padding: 24px 0;
}

.section h2 {
  font-family: "Source Serif 4", "Times New Roman", serif;
  font-size: 1.8rem;
  margin-top: 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--stroke);
}

.section h3 {
  margin-top: 20px;
}

.section p {
  color: var(--muted);
  line-height: 1.7;
}

.tool-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.98rem;
}

.tool-table th,
.tool-table td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--stroke);
  vertical-align: top;
}

.tool-table th {
  color: var(--ink);
  font-weight: 600;
}

.media {
  margin: 16px 0 24px;
}

.media img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--stroke);
}

.media figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

pre {
  margin: 12px 0;
  background: #ffffff;
  padding: 12px;
  border-radius: 6px;
  border: 1px solid var(--stroke);
  overflow-x: auto;
}

code,
.code {
  font-family: "SFMono-Regular", "Menlo", "Monaco", "Courier New", monospace;
  font-size: 0.95em;
}

.footer {
  margin-top: 16px;
  padding-top: 16px;
  color: var(--muted);
  text-align: left;
  border-top: 1px solid var(--stroke);
}

@media (max-width: 720px) {
  h1 {
    font-size: 2rem;
  }
}