:root{--bg:#EAF4FF;--card:#FFFFFF;--ink:#173A6B;--soft:#4F6E99;--accent:#1F63D8;--line:#CFE6FF;color-scheme:light}
@media (prefers-color-scheme:dark){:root{--bg:#0F1A2B;--card:#16243A;--ink:#E6EEF9;--soft:#A9BCD6;--accent:#7FB0FF;--line:#2A3D5A;color-scheme:dark}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 "Nunito",system-ui,sans-serif;padding:24px 16px 64px}
main{max-width:760px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:clamp(18px,4vw,40px)}
h1{font-size:2rem;line-height:1.15;margin:0 0 4px;color:var(--accent)}h2{font-size:1.2rem;margin:28px 0 8px}
p,li{max-width:68ch}.meta{color:var(--soft);margin:0 0 20px}a{color:var(--accent)}table{border-collapse:collapse;width:100%;font-size:.95rem}
td,th{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left;vertical-align:top}th{color:var(--soft);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}
.back{display:inline-block;margin-bottom:16px;font-weight:700}