:root{--bg: #ffffff;--ink: #182230;--fg: var(--ink);--muted: #5b6678;--line: #e4e8ef;--amber: #f0980f;--amber-deep: #a96502;--amber-wash: #fdf4e3;--link: #1d5c8e;--shadow: 0 1px 2px rgba(20, 30, 50, .06), 0 4px 16px rgba(20, 30, 50, .05);--radius: 12px;--maxw: 760px;--display: "Barlow", ui-sans-serif, system-ui, sans-serif;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--fg);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}a{color:var(--link);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}.blueprint{background-color:var(--ink);background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:26px 26px}.site-header{border-bottom:3px solid var(--amber)}.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:62px}.logo{display:flex;align-items:center;gap:9px;font-family:var(--display);font-weight:700;font-size:19px;color:#fff;letter-spacing:.01em}.logo:hover{text-decoration:none}.logo svg{display:block}.logo span{color:var(--amber)}.site-header nav a{color:#c4ccd8;margin-left:18px;font-size:15px}.site-header nav a:hover{color:#fff;text-decoration:none;border-bottom:2px solid var(--amber);padding-bottom:2px}.site-footer{margin-top:56px;padding:30px 0 34px;color:#aeb7c4;font-size:14px}.site-footer .wrap{display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:space-between}.site-footer strong{color:#fff;font-family:var(--display)}.site-footer a{color:#c4ccd8}.site-footer a:hover{color:var(--amber);text-decoration:none}.site-footer .note{color:#8893a3}.crumbs{font-size:13px;color:var(--muted);margin:18px 0 6px}.crumbs a{color:var(--muted)}h1,h2,h3{font-family:var(--display)}h1{font-size:31px;line-height:1.18;letter-spacing:-.01em;margin:10px 0 6px;font-weight:700}h2{font-size:22px;margin:34px 0 10px;letter-spacing:-.005em;font-weight:600}h3{font-size:17px;margin:20px 0 6px;font-weight:600}.lead{font-size:18px;color:var(--muted);margin:0 0 8px}p{margin:12px 0}ul.tips{padding-left:20px}ul.tips li{margin:7px 0}.calc{border:1px solid var(--line);border-top:3px solid var(--amber);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin:22px 0;background:#fff}.calc h2{margin-top:0;font-size:18px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}.fields .full{grid-column:1 / -1}.field label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:5px}.field .with-unit{position:relative;display:flex;align-items:center}.field input,.field select{width:100%;padding:11px 12px;font-size:16px;border:1px solid #cfd6e0;border-radius:9px;background:#fff;color:var(--fg)}.field input:focus,.field select:focus{outline:2px solid var(--amber);border-color:var(--amber)}.field .unit{position:absolute;right:12px;color:var(--muted);font-size:14px;pointer-events:none}.field .with-unit input{padding-right:56px}.results{margin-top:18px;border-top:1px dashed var(--line);padding-top:16px}.result-row{display:flex;justify-content:space-between;align-items:baseline;padding:7px 0;border-bottom:1px solid #f1f3f7}.result-row:last-child{border-bottom:0}.result-row .k{color:var(--muted);font-size:15px}.result-row .v{font-weight:700;font-size:18px;font-variant-numeric:tabular-nums}.result-row.cost .v{color:var(--amber-deep)}.result-row.cost{background:var(--amber-wash);margin:6px -10px 0;padding:12px 10px;border-radius:9px;border-bottom:0}.note{font-size:13px;color:var(--muted);margin-top:12px}details{border:1px solid var(--line);border-radius:10px;padding:2px 14px;margin:8px 0}details summary{cursor:pointer;font-weight:600;padding:11px 0;list-style:none}details summary::-webkit-details-marker{display:none}details summary:after{content:"+";float:right;color:var(--amber-deep);font-weight:700}details[open]{border-color:#ead9bb;background:#fffdf8}details[open] summary:after{content:"–"}details p{margin:0 0 12px;color:var(--fg)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;margin:14px 0}.grid a{display:block;padding:12px 14px;border:1px solid var(--line);border-radius:10px;color:var(--fg);font-size:15px;background:#fff;transition:border-color .12s,box-shadow .12s,transform .12s}.grid a:hover{border-color:var(--amber);box-shadow:var(--shadow);text-decoration:none;transform:translateY(-1px)}.cat-title{font-size:14px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:26px 0 4px}main h2:before{content:"";display:inline-block;width:9px;height:9px;background:var(--amber);margin-right:9px;border-radius:2px}.calc h2:before,.e404 h2:before{display:none}.related{margin-top:30px}.related .grid a{font-size:14px;padding:10px 12px}@media(max-width:560px){body{font-size:16px}h1{font-size:25px}.fields{grid-template-columns:1fr}.site-header nav a{margin-left:12px}}