/* south v0.7: главная, калькуляторы, единая навигация (светлая тема) */
:root{--bg:#f5f8fd;--ink:#0f172a;--mut:#475569;--line:#c7d7f0;--soft:#eaf2ff;--acc:#dbeafe;--blue:#1d4ed8;--green:#16a34a;--green2:#15803d}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}
a{color:inherit;text-decoration:none}
.wrap{max-width:720px;margin:0 auto;padding:0 14px 28px}
.south-nav{display:flex;gap:8px;align-items:center;padding:8px 12px;background:#fff;border-bottom:1px solid #e2e8f0;font:600 14px/1.2 -apple-system,Segoe UI,Roboto,sans-serif}
.south-nav a{color:#1d4ed8;text-decoration:none;padding:7px 12px;border-radius:999px;background:#eff6ff}
.back{display:inline-block;margin:10px 0 0;padding:7px 12px;border-radius:999px;background:#eff6ff;color:#1d4ed8;font:600 14px/1.2 -apple-system,Segoe UI,Roboto,sans-serif}
.back[hidden]{display:none}
.hero{position:relative;margin:10px 0 0;border-radius:28px;overflow:hidden;background:#0b1e3d;min-height:220px}
.hero video{display:block;width:100%;height:240px;object-fit:cover}
.hero .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,30,61,.05) 20%,rgba(11,30,61,.78) 100%)}
.hero .cap{position:absolute;left:18px;right:18px;bottom:16px;color:#fff}
.hero h1{margin:0 0 4px;font-size:26px;line-height:1.15}
.hero p{margin:0;font-size:14px;opacity:.95}
.lead{margin:16px 2px 8px;font-size:15px;color:var(--mut)}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 4px}
.tag{padding:7px 14px;border-radius:999px;background:var(--acc);border:1px solid var(--line);font-size:13.5px;color:var(--ink)}
.cta{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 6px}
.btn{flex:1 1 220px;text-align:center;padding:14px 20px;border-radius:999px;font-weight:600;font-size:16px;border:1px solid var(--green2);background:var(--green);color:#fff}
.btn.alt{background:#fff;color:var(--ink);border-color:var(--line)}
h2{margin:24px 2px 10px;font-size:19px}
.pills{display:grid;grid-template-columns:1fr;gap:10px}
@media(min-width:560px){.pills{grid-template-columns:1fr 1fr}}
.pill{display:flex;align-items:center;gap:12px;padding:12px 18px 12px 12px;border-radius:44px;background:#fff;border:1px solid var(--line);box-shadow:0 1px 2px rgba(15,23,42,.05);min-height:64px}
.pill i{flex:0 0 42px;height:42px;border-radius:50%;background:var(--acc);display:flex;align-items:center;justify-content:center;font-style:normal;font-size:20px}
.pill b{display:block;font-size:16px;color:var(--ink)}
.pill em{display:block;font-style:normal;font-size:13px;color:var(--mut)}
.pill:active{background:var(--soft)}
.gallery[hidden]{display:none}
.rail{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px}
.rail figure{flex:0 0 82%;margin:0;scroll-snap-align:start}
.rail img{display:block;width:100%;height:190px;object-fit:cover;border-radius:22px;background:var(--soft)}
.rail figcaption{margin:6px 6px 0;font-size:13px;color:var(--mut)}
.note{margin:22px 2px 0;font-size:12.5px;color:var(--mut)}
.info{margin:12px 0 0;padding:14px 18px;border-radius:24px;background:var(--soft);border:1px solid var(--line);font-size:14px;color:var(--ink)}
footer{margin:22px 2px 0;font-size:12.5px;color:var(--mut)}