:root{
  --bg:#f8fcff;--card:#ffffff;--ink:#13202b;--muted:#526474;--line:#dceaf2;--brand:#147a8a;--brand-2:#0e5f74;--soft:#e8f8fb;--warn:#fff5da;--bad:#ffe9e9;--good:#e7f8ee;--shadow:0 18px 50px rgba(19,32,43,.08);--radius:22px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg,#f2fbff 0,#fff 48%,#f7fbfc 100%);color:var(--ink);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.6}a{color:var(--brand-2);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.site-header{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;padding:14px clamp(18px,4vw,54px);background:rgba(248,252,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--ink);font-size:1.15rem}.brand:hover{text-decoration:none}.main-nav{display:flex;gap:18px;align-items:center;font-weight:700}.main-nav a{color:var(--ink);font-size:.96rem}.menu-toggle{display:none;border:0;background:var(--brand);color:#fff;border-radius:12px;padding:8px 11px;font-size:1.2rem}.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;padding:72px clamp(20px,5vw,72px) 46px}.hero h1,.page-hero h1{font-size:clamp(2.35rem,6vw,5.1rem);line-height:.96;margin:0 0 18px;letter-spacing:-.055em}.hero p,.page-hero p{font-size:clamp(1.05rem,2vw,1.28rem);color:var(--muted);max-width:780px}.hero-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.hero-card img{border-radius:18px;background:var(--soft)}.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 18px;font-weight:900;border:2px solid var(--brand);background:var(--brand);color:white}.btn:hover{text-decoration:none;background:var(--brand-2);border-color:var(--brand-2)}.btn.secondary{background:transparent;color:var(--brand-2)}.btn.secondary:hover{background:var(--soft)}.trust-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:0 clamp(20px,5vw,72px) 44px}.trust-strip div,.spec-card,.tool-card,.article-card,.question-card,.sources-box,.callout,.toc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.trust-strip div{padding:18px}.trust-strip strong{display:block;font-size:1.1rem}.section{padding:44px clamp(20px,5vw,72px)}.section h2{font-size:clamp(1.75rem,3vw,2.7rem);line-height:1.1;margin:0 0 18px;letter-spacing:-.035em}.grid{display:grid;gap:18px}.grid.cols-2{grid-template-columns:repeat(2,1fr)}.grid.cols-3{grid-template-columns:repeat(3,1fr)}.grid.cols-4{grid-template-columns:repeat(4,1fr)}.article-card,.question-card,.tool-card,.spec-card{padding:22px}.article-card h3,.question-card h3,.tool-card h3{margin:0 0 8px;line-height:1.2}.kicker{display:inline-block;color:var(--brand-2);background:var(--soft);font-weight:900;border-radius:999px;padding:5px 10px;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}.page-hero{padding:52px clamp(20px,5vw,72px) 22px}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:28px;align-items:start;padding:22px clamp(20px,5vw,72px) 52px}.article{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:clamp(24px,4vw,42px)}.article h2{font-size:clamp(1.55rem,2.5vw,2.3rem);line-height:1.15;margin-top:34px}.article h2:first-child{margin-top:0}.article h3{margin-top:28px}.article p{font-size:1.04rem}.article ul{padding-left:1.2rem}.toc{padding:20px;position:sticky;top:92px}.toc h2{font-size:1rem;margin:0 0 10px}.toc a{display:block;padding:8px 0;border-top:1px solid var(--line);font-weight:800}.breadcrumbs{display:flex;gap:8px;list-style:none;padding:0;margin:0 0 18px;color:var(--muted);font-size:.92rem}.breadcrumbs li:not(:last-child)::after{content:'›';margin-left:8px;color:var(--muted)}.sources-box{margin-top:28px;padding:22px;background:#fbfeff}.sources-box h2{font-size:1.2rem}.callout{padding:20px;background:var(--soft);border-color:#bfe9f0}.callout.warning{background:var(--warn);border-color:#f3dda3}.callout.bad{background:var(--bad);border-color:#f3b3b3}.callout.good{background:var(--good);border-color:#b6e5c7}.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.spec-card strong{display:block;font-size:1.1rem}.faq-list details{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;margin:12px 0}.faq-list summary{font-weight:900;cursor:pointer}.search-box{display:flex;gap:10px;margin:18px 0}.search-box input, .tool-form input, .tool-form select, .tool-form textarea{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:14px;font:inherit;background:#fff}.tool-form{display:grid;gap:14px}.result-box{margin-top:16px;padding:18px;border-radius:18px;border:1px solid var(--line);background:#fff}.pill-row{display:flex;gap:8px;flex-wrap:wrap}.pill{border-radius:999px;background:var(--soft);padding:6px 10px;font-weight:800;color:var(--brand-2);font-size:.86rem}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;background:#fff;border-radius:16px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left}th{background:var(--soft)}.site-footer{display:grid;grid-template-columns:1fr auto;gap:24px;padding:36px clamp(20px,5vw,72px);border-top:1px solid var(--line);background:#eff8fb}.site-footer p{max-width:650px;color:var(--muted)}.footer-links{display:flex;gap:14px;flex-wrap:wrap;align-items:start}.image-note{font-size:.92rem;color:var(--muted)}.not-found{text-align:center;min-height:55vh;display:grid;place-items:center;padding:40px}.category-nav{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 26px}.category-nav a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-weight:800}.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0 0}.hero-badges span{background:rgba(20,122,138,.12);color:var(--brand-2);border-radius:999px;padding:6px 10px;font-weight:900;font-size:.86rem}
@media(max-width:900px){.hero,.content-layout{grid-template-columns:1fr}.trust-strip,.grid.cols-3,.grid.cols-4,.spec-grid{grid-template-columns:1fr 1fr}.toc{position:static}.site-footer{grid-template-columns:1fr}.main-nav{display:none;position:absolute;left:16px;right:16px;top:70px;flex-direction:column;align-items:stretch;background:#fff;padding:16px;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav a{padding:10px}.menu-toggle{display:block}}
@media(max-width:620px){.trust-strip,.grid.cols-2,.grid.cols-3,.grid.cols-4,.spec-grid{grid-template-columns:1fr}.hero{padding-top:42px}.hero h1,.page-hero h1{font-size:2.4rem}.article{padding:22px}.search-box{flex-direction:column}}

.article > img, .lead-image{width:100%;display:block;border-radius:20px;border:1px solid var(--line);box-shadow:0 14px 34px rgba(19,32,43,.08);margin:0 0 28px;aspect-ratio:16/10;object-fit:cover;background:var(--soft)}
.hero-card img{aspect-ratio:16/11;object-fit:cover;width:100%;display:block}


.answer-card{background:linear-gradient(180deg,#ffffff,#f1fbfd);border:1px solid #bfe9f0;border-radius:22px;box-shadow:var(--shadow);padding:22px;margin:0 0 24px}.answer-card p{font-size:1.12rem;margin:.4rem 0}.jump-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:22px 0}.jump-grid a{display:flex;justify-content:space-between;gap:10px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 14px;font-weight:900}.jump-grid span{color:var(--muted)}.faq-cluster{margin:34px 0}.answer-block{border-top:1px solid var(--line);margin-top:12px;padding-top:12px}.entity-table td:first-child{font-weight:800}.updated-badge{display:inline-block;background:var(--good);border:1px solid #b6e5c7;border-radius:999px;padding:6px 10px;font-weight:900;color:#245b38}.cluster-strip{display:flex;gap:10px;flex-wrap:wrap}.cluster-strip a{background:var(--soft);border-radius:999px;padding:8px 12px;font-weight:900}
@media(max-width:900px){.jump-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.jump-grid{grid-template-columns:1fr}}


/* Production monetization and tracking helpers */
.ad-slot{display:none;margin:28px 0;padding:14px;border:1px dashed var(--line);border-radius:18px;background:#fbfeff;color:var(--muted);text-align:center;min-height:92px}
body.ads-enabled .ad-slot{display:block}
.ad-slot::before{content:attr(data-ad-label);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;font-weight:900;color:var(--muted)}
.ad-slot .adsbygoogle{display:block;min-height:90px}
.owner-note{background:#fffdf2;border:1px solid #eadca4;border-radius:18px;padding:18px;margin:18px 0}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.metric-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow)}.metric-card strong{display:block;font-size:1.5rem}
@media(max-width:900px){.metrics-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.metrics-grid{grid-template-columns:1fr}}