:root{
  --bg:#f7f5ef; --surface:#ffffff; --ink:#1d2321; --muted:#5f6763; --line:#e3e0d6;
  --accent:#e2552d; --accent-ink:#b23d1b; --green:#2f7d5b; --soft:#fbe6dc;
  --display:'Cabinet Grotesk',system-ui,sans-serif; --body:'Satoshi',system-ui,sans-serif;
  --max:1080px;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.6 var(--body);-webkit-font-smoothing:antialiased}
a{color:var(--accent-ink)}
.topbar{position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;gap:1rem;
  padding:.8rem clamp(1rem,4vw,2.5rem);background:rgba(247,245,239,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.brand{font:800 1.35rem var(--display);color:var(--ink);text-decoration:none;letter-spacing:-.02em}
.brand span{color:var(--accent)} .brand small{font:500 .8rem var(--body);color:var(--muted);margin-left:.3rem}
nav{display:flex;align-items:center;gap:1rem}
.link-old{font-size:.9rem;text-decoration:none;color:var(--muted)} .link-old:hover{color:var(--accent-ink)}
.lang{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.lang button{border:0;background:none;padding:.3rem .7rem;font:700 .8rem var(--body);color:var(--muted);cursor:pointer}
.lang button[aria-pressed=true]{background:var(--ink);color:#fff}
main{max-width:var(--max);margin:0 auto;padding:0 clamp(1rem,4vw,2.5rem)}
section{padding:clamp(3rem,8vw,6rem) 0;border-bottom:1px solid var(--line)}
h1,h2,h3{font-family:var(--display);letter-spacing:-.025em;line-height:1.05;margin:0 0 1rem}
h1{font-size:clamp(2.8rem,8vw,6rem);font-weight:800}
h1 em{font-style:normal;color:var(--accent)}
h2{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:700}
h3{font-size:1.25rem}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:700;color:var(--green)}
.lede{max-width:62ch;font-size:1.15rem;color:var(--muted)}
.meter{margin-top:2.5rem;max-width:620px}
.meter-bar{height:14px;border-radius:999px;background:var(--line);overflow:hidden}
.meter-bar span{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--accent));border-radius:inherit;animation:fill 1.6s ease-out both}
@keyframes fill{from{width:0}}
.meter-legend{display:flex;justify-content:space-between;font-size:.85rem;color:var(--muted);margin-top:.4rem}
.meter-legend b{color:var(--ink)}
.rule-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.rule-grid li{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:1.4rem}
.rule-grid b{display:block;font:800 2.2rem var(--display);color:var(--accent);margin-bottom:.4rem}
.challenge-formula{margin:2rem 0;padding:1.4rem clamp(1rem,3vw,2rem);border-left:4px solid var(--green);background:#edf2e9;border-radius:0 12px 12px 0}
.challenge-formula p{font:700 clamp(1.1rem,3vw,1.65rem)/1.4 var(--display);margin:0 0 .6rem;font-variant-numeric:tabular-nums}
.challenge-formula span,.score-note{font-size:.92rem;color:var(--muted)}
nav{flex-wrap:wrap}
.article-copy>h2{margin-top:2.4rem}
.article-copy>h3{margin-top:2rem}
.article-copy{overflow-wrap:anywhere}
.article-copy table{margin:1.6rem 0}
@media(max-width:600px){.article-copy th,.article-copy td{font-size:.78rem;padding:.5rem .35rem}.topbar nav{gap:.2rem}}
.publish{display:grid;gap:2rem}
.tags{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.5rem}
.tags li{background:var(--soft);color:var(--accent-ink);padding:.35rem .8rem;border-radius:999px;font-size:.9rem;font-weight:500}
.levels{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem}
.levels article{border-left:3px solid var(--green);padding:.2rem 0 .2rem 1rem}
.levels p,.muted{color:var(--muted);margin:0}
.origin{text-align:center}
.origin p{max-width:50ch;margin:0 auto 1.5rem;font-size:1.15rem}
.btn{display:inline-block;background:var(--ink);color:#fff;text-decoration:none;padding:.85rem 1.5rem;border-radius:999px;font-weight:700}
.btn:hover{background:var(--accent-ink)}
.disclaimer{font-size:.88rem;color:var(--muted);background:var(--surface);border:1px dashed var(--line);border-radius:12px;padding:.9rem 1rem}
.comments{border-bottom:0}
.foot{max-width:var(--max);margin:0 auto;padding:2rem clamp(1rem,4vw,2.5rem);display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.85rem;color:var(--muted)}
.foot a{color:var(--muted)}
@media (max-width:600px){.link-old{display:none}}

/* Multi-page extras */
.site-link{font-size:.95rem;text-decoration:none;color:var(--muted);padding:.3rem .5rem;border-radius:8px}
.site-link:hover{color:var(--ink);background:var(--soft)}
.site-link.active{color:var(--ink);background:var(--soft)}
.page-head{padding-top:2rem}
.page-head h1{font-size:clamp(2.2rem,6vw,4rem)}
.install-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem;margin:1.5rem 0}
.install-steps>div{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:1.4rem}
.install-steps ol{margin:.5rem 0 0;padding-left:1.2rem;color:var(--muted)}
.tip-grid,.review-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem;margin:1.5rem 0}
.tip-card{text-align:left;font:inherit;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:1.4rem;cursor:pointer;display:flex;flex-direction:column;gap:.5rem;transition:transform .15s ease,border-color .15s ease}
.tip-card:hover{transform:translateY(-2px);border-color:var(--accent)}
.tip-card.active{border-color:var(--accent);box-shadow:0 0 0 3px var(--soft)}
.tip-title{font:700 1.15rem var(--display)}
.tip-desc{color:var(--muted);font-size:.92rem}
.badge{align-self:flex-start;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;padding:.25rem .6rem;border-radius:999px}
.badge.green{background:rgba(47,125,91,.12);color:#256b4c}
.badge.orange{background:rgba(226,85,45,.12);color:var(--accent-ink)}
.badge.cyan{background:rgba(13,148,136,.12);color:#0e7490}
.rating{color:#d99a1b;font-size:1.1rem;letter-spacing:.1em}
.tip-frame{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:clamp(1.2rem,4vw,2.5rem);margin-top:1rem;overflow-x:auto}
.tip-frame.dark{background:#131b2e;border-color:#1f2c4a;color:#e2e8f0}
.tip-frame.dark h1,.tip-frame.dark h2,.tip-frame.dark h3{color:#fff}
.tip-frame img{max-width:100%;border-radius:12px}
.tip-frame .article-body{max-width:72ch}
.table-wrap{overflow-x:auto;margin-top:1rem}
table{width:100%;border-collapse:collapse;background:var(--surface);border-radius:12px;overflow:hidden;font-size:.92rem}
th,td{padding:.7rem .9rem;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--soft);color:var(--accent-ink);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}
tr:last-child td{border-bottom:0}
.subscribe{max-width:640px}
.sub-form{display:flex;gap:.6rem;flex-wrap:wrap;margin:1.2rem 0 .4rem}
.sub-form input{flex:1;min-width:220px;border:1px solid var(--line);border-radius:999px;padding:.75rem 1.1rem;font:inherit;background:var(--surface)}
.sub-form input:focus{outline:2px solid var(--accent);outline-offset:2px}
.social{display:flex;gap:.8rem;margin-top:1rem;flex-wrap:wrap}
.social a{text-decoration:none;color:var(--muted);font-size:.9rem;border:1px solid var(--line);border-radius:999px;padding:.35rem .8rem}
.social a:hover{color:var(--accent-ink);border-color:var(--accent)}
@media (max-width:600px){.site-link{padding:.3rem .4rem;font-size:.9rem}}

/* QA fixes */
.tip-frame{scroll-margin-top:84px}
.table-wrap{max-width:100%;-webkit-overflow-scrolling:touch}
@media (max-width:700px){
  .table-wrap table{font-size:.8rem;min-width:560px}
  .table-wrap{margin-left:-1rem;margin-right:-1rem;padding:0 .4rem}
  .table-wrap table th,.table-wrap table td{padding:.5rem .55rem;white-space:nowrap}
  .table-wrap table td:last-child,.table-wrap table th:last-child{white-space:normal}
}

/* Horizontal scroll affordance for tables */
.table-wrap{position:relative}
.table-wrap::after{content:"";position:absolute;top:0;right:0;bottom:0;width:28px;
  background:linear-gradient(90deg,transparent,var(--bg));pointer-events:none}

[hidden]{display:none!important}
.page-share{margin:0 0 1.6rem}
.share-actions{display:flex;flex-wrap:wrap;gap:.6rem}
.share-actions button{font:700 .85rem var(--body);cursor:pointer;border-radius:999px;padding:.6rem 1rem}
.share-button{background:var(--green);color:#fff;border:1px solid var(--green)}
.copy-button{background:transparent;color:var(--ink);border:1px solid var(--line)}
.share-actions button:hover{filter:brightness(.94)}
.share-actions button:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.share-status:empty{display:none}
.share-status{font-size:.85rem;margin:.5rem 0 0}
.share-fallback{margin-top:.8rem;max-width:640px}
.share-fallback label{font-size:.85rem;display:block}
.share-fallback input{width:100%;font:inherit;font-size:.88rem;padding:.7rem;background:#fff;border:1px solid var(--line);border-radius:8px}
a.tip-card{text-decoration:none;color:inherit}
.article-copy{max-width:72ch}
.article-copy h1{font-size:clamp(2rem,5vw,3.5rem)}
.article-copy h2,.article-copy h3{margin-top:1.8rem}
.article-copy img{max-width:100%;height:auto;border-radius:12px}
.breadcrumb{font-size:.9rem;margin:0 0 1.5rem}
.activity-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:.8rem;padding:0}
.activity-facts div{padding:1rem;background:#fff;border:1px solid var(--line);border-radius:12px}
.activity-facts dt{font-size:.8rem;color:var(--muted)}
.activity-facts dd{margin:.2rem 0 0;overflow-wrap:anywhere;font-weight:700}
.photo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.photo-grid img{width:100%;height:auto}
.article-links{list-style:none;padding:0}
.article-links li{margin-bottom:1rem}
@media(max-width:600px){.topbar{flex-wrap:wrap}.topbar nav{flex-wrap:wrap;gap:.4rem}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important}}