:root{--fg:#1d2329;--muted:#55606b;--bg:#fff;--alt:#f4f6f8;--accent:#0b6e4f;--b:#d5dbe1}
*{box-sizing:border-box}body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--fg);background:var(--bg)}
a{color:var(--accent)}.wrap{max-width:860px;margin:0 auto;padding:0 1rem}
header{border-bottom:1px solid var(--b)}header .wrap{display:flex;flex-wrap:wrap;gap:.5rem 1rem;align-items:center;justify-content:space-between;padding:.75rem 1rem}
.logo{font-weight:800;font-size:1.25rem;text-decoration:none;color:var(--fg)}nav a{margin-right:.8rem;text-decoration:none}
.skip{position:absolute;left:-999px}.skip:focus{left:1rem;top:1rem;background:#fff;padding:.5rem;z-index:9}
h1{font-size:1.75rem;line-height:1.25}main{padding:1rem 0 2rem}
.cards{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));padding:0;list-style:none}
.cards a{display:block;padding:1rem;border:1px solid var(--b);border-radius:10px;text-decoration:none;color:var(--fg);background:var(--alt)}.cards a:hover,.cards a:focus{border-color:var(--accent)}
.calc{background:var(--alt);border:1px solid var(--b);border-radius:10px;padding:1rem;margin:1rem 0}
.grid{display:grid;gap:.75rem;grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
label{display:block;font-weight:600;font-size:.9rem}input,select{width:100%;padding:.55rem;font-size:1rem;border:1px solid #9aa5b1;border-radius:6px;margin-top:.2rem}
input:focus,select:focus,button:focus{outline:3px solid #f2b705;outline-offset:1px}
.units{margin-bottom:.75rem}.units label{display:inline;font-weight:400;margin-right:1rem}.units input{width:auto}
.result{margin-top:1rem;padding:1rem;background:#fff;border-left:4px solid var(--accent);border-radius:6px}.result strong{font-size:1.2rem}
.ad-slot[hidden],.ad-slot:empty{display:none}.ad-slot{margin:1.25rem 0}
footer{border-top:1px solid var(--b);color:var(--muted);font-size:.9rem;padding:1rem 0}.small{color:var(--muted);font-size:.9rem}
details{border-bottom:1px solid var(--b);padding:.5rem 0}summary{cursor:pointer;font-weight:600}
.ws-card img{width:100%;height:auto;border:1px solid var(--b);border-radius:6px;background:#fff;display:block;margin-bottom:.5rem}
.ws-card .meta,.meta{color:var(--muted);font-size:.85rem}
.ws-layout{display:grid;gap:1.25rem;grid-template-columns:minmax(0,320px) 1fr;align-items:start}@media(max-width:700px){.ws-layout{grid-template-columns:1fr}}
.preview{margin:0;border:1px solid var(--b);border-radius:8px;padding:.5rem;background:#fff}.preview img{width:100%;height:auto;display:block}.preview figcaption{font-size:.8rem;color:var(--muted);text-align:center}
.btn{display:inline-block;padding:.7rem 1.1rem;border-radius:8px;background:var(--accent);color:#fff;text-decoration:none;font-weight:700;margin:.25rem .5rem .25rem 0}.btn.secondary{background:#fff;color:var(--accent);border:2px solid var(--accent)}
.tags span{display:inline-block;background:var(--alt);border:1px solid var(--b);border-radius:99px;padding:.1rem .6rem;font-size:.8rem;margin:0 .3rem .3rem 0}
.crumbs{font-size:.85rem;color:var(--muted)}
@media print{header,footer,.ad-slot,nav,.btn{display:none!important}}