:root{--accent:#d9730d;--accent-dark:#a85408;--bg:#f6f7f9;--card:#fff;--text:#1d2530;--muted:#5a6676;--line:#dfe3ea;--warn:#fff4d6;--warn-line:#e8c766;--ok:#e6f6ec;--radius:12px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--bg)}
.wrap{max-width:1080px;margin:0 auto;padding:0 18px}
a{color:var(--accent-dark)}
a:hover{text-decoration:none}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:#fff;padding:8px;z-index:99}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.header-in{display:flex;align-items:center;justify-content:space-between;min-height:62px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.1rem;color:var(--text);text-decoration:none}
.logo{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--accent);color:#fff;font-size:1.1rem}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{padding:8px 11px;border-radius:8px;text-decoration:none;color:var(--text);font-size:.95rem}
.nav a:hover{background:#eef1f5}.nav a.active{background:var(--accent-dark);color:#fff}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;font-size:1.3rem;padding:4px 10px;cursor:pointer}
@media(max-width:820px){.nav-toggle{display:block}.nav{display:none;position:absolute;top:62px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 18px;flex-direction:column}.nav.open{display:flex}}
main{padding-top:18px;padding-bottom:40px}
h1{font-size:clamp(1.7rem,4vw,2.4rem);line-height:1.2;margin:.4em 0 .3em}
h2{font-size:1.45rem;margin:1.8em 0 .5em;line-height:1.25}
h3{font-size:1.15rem;margin:1.4em 0 .4em}
.lead{font-size:1.15rem;color:var(--muted);max-width:760px}
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:6px}.crumbs a{color:var(--muted)}
.hero{background:linear-gradient(135deg,var(--hero-start,#b45c09),var(--accent-dark));color:#fff;border-radius:16px;padding:34px 26px;margin:6px 0 26px}
.hero h1{margin-top:0}.hero p{max-width:720px;font-size:1.1rem}
.btn{display:inline-block;background:#fff;color:var(--accent-dark);padding:10px 18px;border-radius:9px;font-weight:700;text-decoration:none;margin:6px 8px 0 0;border:0;cursor:pointer;font-size:1rem}
.btn.primary{background:var(--accent-dark);color:#fff}.btn.ghost{background:transparent;color:#fff;border:2px solid #fff}
.btn.small{padding:6px 12px;font-size:.9rem}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.card h3{margin-top:0}.card h2{font-size:1.15rem;margin:0 0 .4em}.tool-step{font-size:1.15rem;margin:1.4em 0 .4em}
.card a.more{font-weight:700}
.callout{background:var(--warn);border:1px solid var(--warn-line);border-radius:var(--radius);padding:12px 16px;margin:16px 0}
.callout.ok{background:var(--ok);border-color:#a5d6b7}
.callout.info{background:#eaf2fd;border-color:#b6d1f4}
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
table{border-collapse:collapse;width:100%;font-size:.93rem}
th,td{padding:9px 11px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#f0f3f7;position:sticky;top:0;white-space:nowrap}
tr:last-child td{border-bottom:0}
td.num,th.num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.badge{display:inline-block;font-size:.72rem;font-weight:700;padding:2px 7px;border-radius:99px;background:#e3e8ef;color:#394456;white-space:nowrap}
.badge.est{background:#ffe7b3;color:#6b4800}.badge.ok{background:#d4efdc;color:#14532d}
.ad-slot{margin:22px auto;min-height:100px;border:2px dashed #c3cbd6;border-radius:10px;display:grid;place-items:center;color:#8793a3;font-size:.8rem;background:#fbfcfd;max-width:760px}
.tool{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin:14px 0}
.tool label{display:block;font-weight:600;margin:10px 0 3px;font-size:.93rem}
.tool input[type=number],.tool input[type=text],.tool select{width:100%;max-width:340px;padding:8px 10px;border:1px solid #b9c2cf;border-radius:8px;font-size:1rem;background:#fff}
.tool input.q{width:80px}
.row{display:flex;gap:18px;flex-wrap:wrap}.row>div{flex:1;min-width:230px}
.result{background:#f0f7ff;border:1px solid #b6d1f4;border-radius:var(--radius);padding:14px 16px;margin-top:14px}
.result .big{font-size:2rem;font-weight:800;color:var(--accent-dark);line-height:1.1}
.result.bad{background:#fdecec;border-color:#f0a8a8}
.small{font-size:.86rem}.muted{color:var(--muted)}
.hint{font-size:.83rem;color:var(--muted);margin:3px 0 0}
.picker{max-height:420px;overflow:auto;border:1px solid var(--line);border-radius:10px;margin-top:8px}
.picker table{font-size:.88rem}
.src a{font-size:.8rem}
.site-footer{background:#1b2432;color:#cfd7e3;padding:30px 0 22px;margin-top:30px}
.site-footer a{color:#fff}.site-footer .muted,.site-footer .meta{color:#b8c2d0}.foot-grid{display:grid;grid-template-columns:2fr 1fr;gap:20px}
@media(max-width:620px){.foot-grid{grid-template-columns:1fr}}
.plain{list-style:none;padding:0;margin:6px 0}.plain li{margin:3px 0}
.disclaimer{border-top:1px solid #34425a;padding-top:10px}
article h2{border-top:1px solid var(--line);padding-top:16px}
article ul,article ol{padding-left:1.3em}
.toc{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 18px;display:inline-block;margin:10px 0}
.meta{color:var(--muted);font-size:.88rem}
.checklist{list-style:none;padding-left:0}.checklist li{padding:4px 0 4px 30px;position:relative}.checklist li:before{content:"\2610";position:absolute;left:2px;font-size:1.15rem}
.fill{border-bottom:1px solid #777;display:inline-block;min-width:200px;height:1.2em}
@media print{.site-header,.site-footer,.ad-slot,.noprint{display:none!important}body{background:#fff}.card,.tool{border:1px solid #999}}
.linkbtn{background:none;border:0;color:#fff;text-decoration:underline;cursor:pointer;font:inherit;padding:0}
#consent-banner{position:fixed;left:12px;right:12px;bottom:12px;max-width:640px;margin:0 auto;background:#1b2432;color:#fff;border-radius:12px;padding:14px 16px;z-index:50;box-shadow:0 6px 24px rgba(0,0,0,.3);display:flex;gap:14px;align-items:center;flex-wrap:wrap}
#privacy-panel{position:fixed;left:12px;right:12px;bottom:12px;max-width:520px;margin:0 auto;background:#1b2432;color:#fff;border-radius:12px;padding:16px;z-index:51;box-shadow:0 6px 24px rgba(0,0,0,.35)}
#privacy-panel h2{margin:0 0 8px;font-size:1.05rem;color:#fff}#privacy-panel p{margin:6px 0;font-size:.9rem}#privacy-panel a{color:#fff}#privacy-panel button[disabled]{opacity:.5;cursor:not-allowed}
#consent-banner p{margin:0;flex:1;min-width:220px;font-size:.9rem}#consent-banner a{color:#fff}
.ad-slot.live{border:0;background:none;min-height:280px;display:block}
.pin{margin:18px 0;text-align:center}.pin img{max-width:min(100%,380px);height:auto;border:1px solid var(--line);border-radius:10px}
.details-table{margin-top:10px}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:28px 0 8px;padding-top:14px;border-top:1px solid var(--line)}
.share-label{font-size:.9rem;color:var(--muted);margin-right:4px}
.share-btn{display:inline-block;font:inherit;font-size:.9rem;line-height:1.2;padding:8px 14px;min-height:40px;border:1px solid var(--line);border-radius:8px;background:#fff;color:inherit;text-decoration:none;cursor:pointer}
.share-btn:hover{border-color:#999}.share-btn:focus-visible{outline:3px solid #1b2432;outline-offset:2px}
.share-btn[hidden]{display:none}
/* markdown articles */
article pre{overflow-x:auto;background:#f0f3f7;border:1px solid var(--line);border-radius:8px;padding:12px 14px;font-size:.85rem;line-height:1.45;max-width:100%}
article pre code{background:none;padding:0;white-space:pre}
article blockquote{margin:16px 0;padding:10px 16px;background:var(--warn);border-left:4px solid var(--warn-line);border-radius:0 8px 8px 0}
article blockquote p{margin:.4em 0}
article img{max-width:100%;height:auto}
p code,li code{overflow-wrap:anywhere}
.table-wrap:focus-visible,article pre:focus-visible,pre:focus-visible{outline:3px solid #1b2432;outline-offset:2px}