:root{--ink:#16231C;--mute:#5E6B63;--line:#E3DCCB;--bg:#F6F3EC;--dark:#1F3A2D;--cream:#FFF4D6;--acc:#B7791F}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:16px/1.55 Barlow,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--dark)}
header{background:#fff;border-bottom:1px solid var(--line);padding:10px 18px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;position:sticky;top:0;z-index:5}
header .logo{font-weight:800;font-size:20px;text-decoration:none;color:var(--dark)}
header nav{display:flex;gap:14px}header nav a{text-decoration:none;font-weight:600;color:#33463b}
header .sp{flex:1}
.lang button{border:1px solid var(--line);background:#fff;border-radius:6px;padding:4px 9px;font:600 13px inherit;cursor:pointer;color:var(--ink)}
.lang button.on{background:var(--dark);color:#fff;border-color:var(--dark)}
.btn{display:inline-block;padding:9px 16px;border-radius:9px;border:1px solid var(--line);background:#fff;color:var(--ink);text-decoration:none;font-weight:700;cursor:pointer;font-family:inherit;font-size:15px}
.btn.p{background:var(--dark);color:#fff;border-color:var(--dark)}.btn.g{background:#F0C46A;border-color:#F0C46A;color:#2a1f05}
main{max-width:980px;margin:0 auto;padding:22px 16px 50px}
h1{font-size:34px;line-height:1.15;margin:8px 0 10px}h2{font-size:24px;margin:34px 0 10px}h3{font-size:18px;margin:0 0 4px}
.lead{font-size:18px;color:#33463b;max-width:720px}
.hero{background:var(--dark);color:#fff;border-radius:18px;padding:34px 26px;margin:6px 0 22px}
.hero h1{color:#fff;font-size:38px;max-width:760px}.hero .lead{color:#dfe9e1}
.hero .row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.badge{display:inline-block;background:rgba(255,255,255,.14);padding:4px 12px;border-radius:99px;font-size:14px;margin-top:14px}
.badge code{background:rgba(255,255,255,.18);padding:1px 8px;border-radius:6px;font-weight:800}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px}
.card p{margin:4px 0 0;color:var(--mute)}.ico{font-size:26px;margin-bottom:4px}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.steps .card::before{counter-increment:s;content:counter(s);display:inline-flex;width:30px;height:30px;border-radius:50%;background:var(--dark);color:#fff;align-items:center;justify-content:center;font-weight:800;margin-bottom:6px}
.note{background:var(--cream);border-radius:10px;padding:10px 14px;margin:14px 0;font-size:15px}
.warn{background:#FBE7E2;color:#8f2a19;border-radius:10px;padding:10px 14px;margin:14px 0;font-size:14px}
.gantt{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px}
.gantt .r{display:flex;align-items:center;gap:8px;margin:6px 0;font-size:13px}.gantt .n{width:130px;color:var(--mute)}
.gantt .t{flex:1;height:14px;background:#efeee9;border-radius:7px;position:relative}.gantt .t i{position:absolute;top:0;bottom:0;border-radius:7px;background:#3b7ddd}.gantt .t i.c{background:#d64545}
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin:8px 0}summary{cursor:pointer;font-weight:700}
footer{max-width:980px;margin:0 auto;padding:0 16px 40px;color:var(--mute);font-size:14px}footer a{color:var(--dark)}
.calc{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
label{display:block;font-size:13px;color:var(--mute);font-weight:600}
input,select{width:100%;height:42px;padding:6px 10px;margin-top:3px;font:inherit;border:1px solid #cfc8b6;border-radius:8px;background:#fff;color:var(--ink)}
.res{background:#fff;border:2px solid var(--dark);border-radius:14px;padding:14px 16px;margin-top:16px}
.res .big{font-size:30px;font-weight:800;color:var(--dark)}.res .kv{display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid #eee;padding:5px 0}
.cta{background:var(--dark);color:#fff;border-radius:14px;padding:18px 20px;margin-top:26px}.cta p{color:#dfe9e1;margin:6px 0 12px}
body[data-l="en"] .es,body[data-l="en"] .ru,body[data-l="es"] .en,body[data-l="es"] .ru,body[data-l="ru"] .en,body[data-l="ru"] .es{display:none}

.tools{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.tools .btn{flex:1 1 150px;text-align:center}
.onlyprint{display:none}
#toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:#1F3A2D;color:#fff;padding:9px 16px;border-radius:99px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:20}#toast.on{opacity:1}
@media print{header,footer,.cta,.tools,.lang,#toast{display:none!important}body{background:#fff}main{padding:0}.onlyprint{display:block;border:1px solid #999;padding:10px 12px;margin:10px 0;font-size:14px}.res{border-color:#000}}
@media(max-width:560px){h1{font-size:28px}.hero h1{font-size:30px}.hero{padding:24px 18px}}