:root {
  --ink: #1f2a2e;
  --muted: #4d5b60;
  --paper: #fbf8f2;
  --accent: #1d5c4d;
  --accent-soft: #e3efe9;
  --line: #ddd5c6;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.6 Georgia, "Times New Roman", serif; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.demo-banner { background: #7a3b00; color: #fff; text-align: center; padding: 8px 16px; font: 600 14px/1.4 system-ui, sans-serif; }
.top { border-bottom: 1px solid var(--line); background: #fff; }
.top .wrap { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; padding-top: 14px; padding-bottom: 14px; }
.brand { font-size: 1.35rem; font-weight: 700; color: var(--accent); }
nav a { margin-left: 18px; color: var(--ink); text-decoration: none; font-family: system-ui, sans-serif; font-size: .95rem; }
nav a:hover, nav a:focus-visible { text-decoration: underline; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.hero { background: var(--accent-soft); padding: 56px 0; margin-bottom: 32px; }
.hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 0 0 12px; }
.hero p { max-width: 640px; color: var(--muted); }
.cta-hint { font-family: system-ui, sans-serif; font-weight: 600; color: var(--accent) !important; }
h2 { margin-top: 40px; }
.grid { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.grid li { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; }
.grid h3 { margin: 0 0 4px; font-size: 1.05rem; }
.grid p { margin: 0; color: var(--muted); font-family: system-ui, sans-serif; font-size: .95rem; }
table { border-collapse: collapse; width: 100%; max-width: 520px; background: #fff; font-family: system-ui, sans-serif; }
caption { text-align: left; color: var(--muted); padding-bottom: 6px; }
th, td { border-bottom: 1px solid var(--line); padding: 8px 12px; text-align: left; }
footer { margin: 56px auto 96px; color: var(--muted); font-size: .9rem; }
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }