:root{
  --green-900:#04160f;--green-800:#062419;--green-700:#0a3324;
  --green-600:#0f5137;--green-500:#0f8a5f;--green-400:#12b981;
  --neon:#00e08a;--neon-2:#4ef0b0;--lime:#a3f542;
  --bg:#f4faf6;--bg-2:#ffffff;--ink:#0c1a14;--muted:#4a6155;
  --border:#dcebe2;--shadow:0 10px 30px -12px rgba(6,60,40,.22);
  --grad:linear-gradient(120deg,#00e08a 0%,#12b981 45%,#0f8a5f 100%);
  --grad-dark:linear-gradient(150deg,#04160f 0%,#062f20 55%,#0a4a32 100%);
  --radius:18px;--maxw:1120px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"Apple Color Emoji",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.7;font-size:18px;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:#0b7a53;text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:10px;z-index:99;border-radius:8px}

/* Header */
.site-head{position:sticky;top:0;z-index:50;background:rgba(4,22,15,.86);
  backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid rgba(0,224,138,.18)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#eafff5;font-size:1.15rem;letter-spacing:-.02em}
.brand .logo{width:34px;height:34px;border-radius:10px;background:var(--grad);
  display:grid;place-items:center;box-shadow:0 0 18px rgba(0,224,138,.55)}
.brand .logo svg{width:20px;height:20px}
.brand b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.menu{display:flex;gap:6px;align-items:center;list-style:none;margin:0;padding:0}
.menu a{color:#cdeadd;padding:9px 13px;border-radius:10px;font-size:.95rem;font-weight:600}
.menu a:hover{color:#fff;background:rgba(0,224,138,.14);text-decoration:none}
.menu a.cta{background:var(--grad);color:#04160f;font-weight:800;box-shadow:0 0 18px rgba(0,224,138,.4)}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:24px;height:2px;background:#eafff5;margin:5px 0;border-radius:2px;transition:.25s}

/* Hero */
.hero{background:var(--grad-dark);color:#eafff5;position:relative;overflow:hidden;
  padding:76px 0 92px;border-bottom:1px solid rgba(0,224,138,.15)}
.hero::before{content:"";position:absolute;inset:0;
  background:radial-gradient(60% 60% at 80% 10%,rgba(0,224,138,.28),transparent 60%),
  radial-gradient(50% 50% at 10% 90%,rgba(78,240,176,.16),transparent 60%);pointer-events:none}
.hero .wrap{position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.14em;color:var(--neon-2);
  border:1px solid rgba(0,224,138,.35);padding:6px 14px;border-radius:100px;background:rgba(0,224,138,.08)}
.hero h1{font-size:clamp(2.1rem,5vw,3.5rem);line-height:1.08;margin:20px 0 14px;letter-spacing:-.03em;font-weight:850}
.hero h1 b{background:linear-gradient(120deg,#00e08a,#a3f542);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:1.2rem;color:#bfe6d5;max-width:640px;margin:0 0 26px}
.btn{display:inline-flex;align-items:center;gap:9px;padding:15px 26px;border-radius:100px;
  font-weight:800;font-size:1.02rem;cursor:pointer;border:0;transition:transform .15s,box-shadow .2s}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{background:var(--grad);color:#04160f;box-shadow:0 10px 30px -6px rgba(0,224,138,.55)}
.btn-ghost{background:rgba(255,255,255,.06);color:#eafff5;border:1px solid rgba(0,224,138,.3)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

/* Featured advertorial card */
.featured{margin-top:-52px;position:relative;z-index:5}
.featured .card{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:34px;display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:center;
  position:relative;overflow:hidden}
.featured .card::after{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:var(--grad)}
.featured .tag{display:inline-block;background:rgba(0,224,138,.12);color:#0b7a53;font-weight:800;
  font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;padding:6px 12px;border-radius:100px}
.featured h2{font-size:1.7rem;margin:14px 0 10px;letter-spacing:-.02em;line-height:1.15}
.featured p{color:var(--muted);margin:0 0 18px}
.stars{color:#f5b301;font-size:1.1rem;letter-spacing:2px}
.rating-box{text-align:center;background:var(--grad-dark);color:#eafff5;border-radius:14px;padding:26px}
.rating-box .score{font-size:3rem;font-weight:850;background:linear-gradient(120deg,#00e08a,#a3f542);
  -webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.rating-box small{color:#9fd2bf}

/* Sections */
section.block{padding:60px 0}
.sec-head{text-align:center;max-width:680px;margin:0 auto 40px}
.sec-head h2{font-size:clamp(1.7rem,3.5vw,2.4rem);letter-spacing:-.02em;margin:0 0 10px}
.sec-head p{color:var(--muted);margin:0}
.cat-pill{display:inline-flex;align-items:center;gap:8px;color:#0b7a53;font-weight:800;font-size:.82rem;
  text-transform:uppercase;letter-spacing:.1em;margin-bottom:8px}
.cat-pill svg{width:18px;height:18px;stroke:#0f8a5f;fill:none;stroke-width:1.8}

/* Grid of cards */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid.two{grid-template-columns:repeat(2,1fr)}
.post{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:0 6px 18px -12px rgba(6,60,40,.2);transition:transform .18s,box-shadow .2s;display:flex;flex-direction:column}
.post:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.post .thumb{height:118px;background:var(--grad);position:relative;overflow:hidden}
.post .thumb.v2{background:linear-gradient(120deg,#0f8a5f,#04160f)}
.post .thumb.v3{background:linear-gradient(120deg,#12b981,#0a4a32)}
.post .thumb.v4{background:linear-gradient(120deg,#0a4a32,#00e08a)}
.post .thumb svg{position:absolute;right:-10px;bottom:-10px;width:110px;height:110px;opacity:.22;stroke:#fff;fill:none;stroke-width:1.2}
.post .body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.post .kicker{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:#0b7a53}
.post h3{font-size:1.16rem;line-height:1.3;margin:8px 0 8px;letter-spacing:-.01em}
.post h3 a{color:var(--ink)}
.post p{color:var(--muted);font-size:.96rem;margin:0 0 16px;flex:1}
.post .meta{font-size:.82rem;color:#7a9488;display:flex;gap:12px;align-items:center}
.post .arrow{margin-top:14px;font-weight:800;color:#0b7a53;font-size:.9rem}

/* Article */
.article-head{background:var(--grad-dark);color:#eafff5;padding:56px 0 40px}
.breadcrumb{font-size:.85rem;color:#9fd2bf;margin-bottom:16px}
.breadcrumb a{color:#bfe6d5}
.breadcrumb span{opacity:.6;margin:0 6px}
.article-head h1{font-size:clamp(1.9rem,4.2vw,2.9rem);line-height:1.12;letter-spacing:-.025em;margin:6px 0 16px;max-width:900px}
.article-meta{display:flex;flex-wrap:wrap;gap:16px;color:#bfe6d5;font-size:.9rem;align-items:center}
.article-meta .dot{width:4px;height:4px;background:var(--neon);border-radius:50%}
.layout{display:grid;grid-template-columns:1fr 300px;gap:44px;padding:44px 0 60px;align-items:start}
.prose{font-size:1.06rem;min-width:0}
.prose h2{font-size:1.62rem;letter-spacing:-.02em;margin:2.2em 0 .6em;padding-top:.4em;scroll-margin-top:88px}
.prose h3{font-size:1.24rem;margin:1.6em 0 .5em;scroll-margin-top:88px}
.prose p{margin:0 0 1.1em}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.3em}
.prose li{margin:.4em 0}
.prose strong{color:#083b28}
.prose a{color:#0b7a53;font-weight:600;text-decoration:underline;text-underline-offset:2px}
.lead-p{font-size:1.2rem;color:#324a3f;font-weight:500}
.prose blockquote{margin:1.6em 0;padding:18px 24px;background:linear-gradient(120deg,rgba(0,224,138,.08),rgba(18,185,129,.04));
  border-left:4px solid var(--neon);border-radius:0 14px 14px 0;color:#0c3123;font-style:italic}

/* TOC */
.toc{background:var(--bg-2);border:1px solid var(--border);border-radius:16px;padding:22px 22px 24px;box-shadow:0 6px 18px -14px rgba(6,60,40,.25);margin:0 0 26px}
.toc-in-body{margin:0 0 34px}
.toc h2,.toc .toc-title{font-size:.82rem !important;text-transform:uppercase;letter-spacing:.12em;
  color:#0b7a53;margin:0 0 12px !important;font-weight:800;padding:0 !important}
.toc ol{margin:0;padding:0;counter-reset:toc;list-style:none}
.toc li{margin:0;counter-increment:toc}
.toc a{display:flex;gap:10px;padding:7px 0;color:#2b4438;font-size:.95rem;border-bottom:1px solid #eef5f0;font-weight:500}
.toc a::before{content:counter(toc,decimal-leading-zero);color:#0f8a5f;font-weight:800;font-variant-numeric:tabular-nums}
.toc a:hover{color:#0b7a53;text-decoration:none}
.toc li:last-child a{border-bottom:0}

/* Sidebar */
.side{position:sticky;top:86px}
.side-toc{background:var(--bg-2);border:1px solid var(--border);border-radius:16px;padding:20px;box-shadow:0 6px 18px -14px rgba(6,60,40,.25)}
.side-toc .toc-title{font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;color:#0b7a53;font-weight:800;margin-bottom:12px}
.side-toc ol{list-style:none;margin:0;padding:0;counter-reset:s}
.side-toc li{counter-increment:s;margin:0}
.side-toc a{display:block;padding:6px 0;color:#486054;font-size:.9rem;border-left:2px solid transparent;padding-left:12px;margin-left:-2px}
.side-toc a:hover{color:#0b7a53;border-color:var(--neon);text-decoration:none}

/* CTA callout */
.callout{background:var(--grad-dark);color:#eafff5;border-radius:var(--radius);padding:30px;margin:2em 0;
  position:relative;overflow:hidden}
.callout::before{content:"";position:absolute;inset:0;background:radial-gradient(50% 80% at 90% 10%,rgba(0,224,138,.22),transparent 60%)}
.callout .in{position:relative}
.callout .tag{color:var(--neon-2);font-weight:800;font-size:.74rem;letter-spacing:.12em;text-transform:uppercase}
.callout h3{color:#fff;font-size:1.35rem;margin:8px 0 8px}
.callout p{color:#bfe6d5;margin:0 0 18px}
.callout .btn-primary{font-size:.95rem;padding:13px 22px}

/* YouTube facade */
.yt{position:relative;aspect-ratio:16/9;border-radius:16px;overflow:hidden;cursor:pointer;
  background:#04160f center/cover no-repeat;margin:1.6em 0;box-shadow:var(--shadow);border:1px solid rgba(0,224,138,.2)}
.yt img{width:100%;height:100%;object-fit:cover;opacity:.72}
.yt .play{position:absolute;inset:0;display:grid;place-items:center}
.yt .play span{width:74px;height:74px;border-radius:50%;background:var(--grad);display:grid;place-items:center;box-shadow:0 0 30px rgba(0,224,138,.6)}
.yt .play svg{width:30px;height:30px;fill:#04160f;margin-left:4px}
.yt .lbl{position:absolute;left:16px;bottom:14px;color:#eafff5;font-weight:700;font-size:.95rem;text-shadow:0 1px 8px rgba(0,0,0,.6)}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* FAQ */
.faq details{background:var(--bg-2);border:1px solid var(--border);border-radius:14px;margin:0 0 12px;overflow:hidden}
.faq summary{padding:18px 22px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:14px;color:#0c1a14}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:#0f8a5f;font-weight:800;font-size:1.4rem;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 22px 20px;color:var(--muted)}

/* Table */
.tbl-wrap{overflow-x:auto;margin:1.6em 0;border-radius:14px;border:1px solid var(--border)}
table.data{width:100%;border-collapse:collapse;font-size:.96rem;min-width:460px;background:var(--bg-2)}
table.data th{background:var(--grad-dark);color:#eafff5;text-align:left;padding:13px 16px;font-weight:700}
table.data td{padding:12px 16px;border-top:1px solid var(--border)}
table.data tr:nth-child(even) td{background:#f7fbf9}

/* related */
.related{border-top:1px solid var(--border);padding-top:34px;margin-top:8px}

/* Footer */
.site-foot{background:var(--grad-dark);color:#bfe6d5;margin-top:40px;padding:56px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}
.site-foot h4{color:#eafff5;font-size:.85rem;text-transform:uppercase;letter-spacing:.1em;margin:0 0 14px}
.site-foot ul{list-style:none;margin:0;padding:0}
.site-foot li{margin:0 0 9px}
.site-foot a{color:#a9d3c3;font-size:.94rem}
.site-foot a:hover{color:#fff}
.foot-brand p{font-size:.95rem;max-width:320px;color:#9fd2bf}
.foot-bottom{border-top:1px solid rgba(0,224,138,.15);margin-top:34px;padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.85rem;color:#7fb39f}

@media(max-width:920px){
  .featured .card{grid-template-columns:1fr}
  .layout{grid-template-columns:1fr}
  .side{position:static}
  .side-toc{display:none}
  .grid,.grid.two{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  body{font-size:17px}
  .menu{position:fixed;inset:66px 0 auto 0;background:#04160f;flex-direction:column;
    align-items:stretch;padding:14px;gap:4px;border-bottom:1px solid rgba(0,224,138,.2);
    transform:translateY(-140%);transition:transform .3s;box-shadow:var(--shadow)}
  .menu.open{transform:translateY(0)}
  .menu a{padding:13px}
  .burger{display:block}
  .grid,.grid.two,.foot-grid{grid-template-columns:1fr}
  .hero{padding:54px 0 74px}
  section.block{padding:44px 0}
  .featured .card{padding:24px}
}