:root {
  color-scheme: light;
  font-family: Roboto, Arial, sans-serif;
  line-height: 1.6;
  --bg: #f6f8fb;
  --panel: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #d9e2ee;
  --accent: #0f766e;
}

* { box-sizing: border-box; }
body { background: var(--bg); color: var(--ink); margin: 0; }
main { margin: 0 auto; max-width: 54rem; padding: clamp(2rem, 6vw, 5rem) 1.25rem; }
header { align-items: center; display: flex; gap: 0.75rem; margin-bottom: 2.5rem; }
header img { display: block; height: auto; width: min(15rem, 72vw); }
article { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 20px 55px rgba(15, 23, 42, 0.08); padding: clamp(1.5rem, 5vw, 3.5rem); }
.eyebrow { color: var(--accent); font-size: 0.75rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
h1 { font-size: clamp(2.1rem, 5vw, 3.5rem); letter-spacing: -0.045em; line-height: 1.05; margin: 0.45rem 0 0.75rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 0.45rem; }
p, li { color: var(--muted); }
ul, ol { padding-left: 1.25rem; }
a { color: var(--accent); font-weight: 700; }
.updated { border-bottom: 1px solid var(--line); font-size: 0.8rem; margin: 0 0 1.8rem; padding-bottom: 1.4rem; }
.callout { background: rgba(15, 118, 110, 0.08); border-left: 3px solid var(--accent); border-radius: 8px; color: var(--ink); padding: 0.9rem 1rem; }
footer { color: var(--muted); font-size: 0.8rem; margin-top: 1.5rem; text-align: center; }