/* Карго-справочник — четвёртый дизайн: левая колонка-указатель, песочный фон,
   бирюзовый акцент. Намеренно не похож на три предыдущих сайта. */
:root{--ink:#1B2A2F;--muted:#5F7078;--line:#DCD6C8;--bg:#FAF7F0;--card:#FFFDF8;--mark:#0F766E}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.72 "Iowan Old Style",Georgia,"Times New Roman",serif}
a{color:var(--mark);text-decoration:none}
a:hover{text-decoration:underline}
.shell{display:grid;grid-template-columns:270px minmax(0,1fr);gap:0;min-height:100vh;
  max-width:1160px;margin:0 auto}
@media(max-width:860px){.shell{grid-template-columns:1fr}}
.side{background:var(--ink);color:#E7EFEE;padding:28px 24px;display:flex;flex-direction:column;gap:18px}
@media(min-width:861px){.side{position:sticky;top:0;height:100vh;overflow:auto}}
.brand{color:#fff;font-size:22px;font-weight:700;letter-spacing:.01em}
.brand:hover{color:var(--mark);text-decoration:none}
.brand-sub{margin:-10px 0 0;color:#9DB2B4;font-size:14px;line-height:1.5;
  font-family:-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
.side-nav,.side-extra{display:flex;flex-direction:column;gap:2px;
  font-family:-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:15px}
.side-nav a,.side-extra a{color:#CBD9D8;padding:7px 10px;border-left:3px solid transparent}
.side-nav a:hover,.side-extra a:hover{background:#25383E;color:#fff;text-decoration:none}
.side-nav a.is-cur{border-left-color:var(--mark);background:#25383E;color:#fff}
.side-extra{margin-top:auto;border-top:1px solid #2C4249;padding-top:14px;font-size:14px}
.col{display:flex;flex-direction:column}
main{flex:1;padding:44px 48px 28px;max-width:820px}
@media(max-width:860px){main{padding:28px 20px}}
.intro h1{margin:0 0 10px;font-size:clamp(28px,4.2vw,38px);line-height:1.18}
.intro p{margin:0;color:var(--muted);max-width:60ch;font-size:18px}
.cards{display:grid;gap:14px;margin-top:32px}
.card{background:var(--card);border:1px solid var(--line);padding:18px 20px}
.card h2{margin:0 0 6px;font-size:20px;line-height:1.3}
.card p{margin:0 0 8px;color:#3A4A50;max-width:62ch}
.card-meta{color:var(--muted);font-size:13px;
  font-family:-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
.doc h1{margin:0 0 10px;font-size:clamp(26px,3.6vw,34px);line-height:1.2;max-width:26ch}
.doc-lead{margin:0 0 26px;color:var(--muted);font-size:18px;max-width:62ch;
  padding-bottom:16px;border-bottom:2px solid var(--line)}
.doc h2{margin:32px 0 10px;font-size:21px}
.doc h3{margin:24px 0 8px;font-size:17px}
.doc p,.doc li{max-width:66ch}
.doc ul,.doc ol{padding-left:20px}
.doc li{margin-bottom:6px}
.doc table{border-collapse:collapse;width:100%;margin:22px 0;font-size:15px;background:var(--card)}
.doc th,.doc td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.doc th{background:#F2ECE0}
.doc blockquote{margin:22px 0;padding:12px 18px;background:var(--card);border-left:4px solid var(--mark);
  color:#3A4A50}
.foot{padding:20px 48px 30px;border-top:1px solid var(--line);color:var(--muted);font-size:13px;
  font-family:-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
@media(max-width:860px){.foot{padding:18px 20px}}
.foot p{margin:3px 0;max-width:70ch}

.hero{margin:-44px -48px 28px;overflow:hidden}
.hero img{display:block;width:100%;height:clamp(180px,26vw,280px);object-fit:cover}
@media(max-width:860px){.hero{margin:-28px -20px 20px}}