:root{
  --em:#0B3D2E; --em2:#0E4A38; --lime:#C6F135; --lime2:#a9d81f;
  --sand:#F3EEE3; --paper:#FBF9F3; --ink:#122019; --muted:#5f7367; --line:#dfe6d8;
  --card:#ffffff;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:Inter,system-ui,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}
h1,h2,h3,h4,.disp{font-family:'Space Grotesk',sans-serif;letter-spacing:-.02em}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:5px 11px;border-radius:999px;background:#eef3e6;color:#43664e;border:1px solid var(--line)}
.chip-ai{background:rgba(11,61,46,.08);color:var(--em);border-color:rgba(11,61,46,.18)}
.chip-audio{background:rgba(169,216,31,.22);color:#3f5910;border-color:#cfe38a}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14px;padding:13px 22px;border-radius:12px;background:var(--em);color:#fff;border:none;cursor:pointer}
.btn-lime{background:var(--lime);color:#1c2a06}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--em)}

header{position:sticky;top:0;z-index:50;background:rgba(251,249,243,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:26px;height:66px}
.logo{font-family:'Space Grotesk';font-weight:700;font-size:20px;letter-spacing:-.03em;color:var(--em)}
.logo b{color:var(--lime2)}
.nav nav{display:flex;gap:20px;margin-left:6px}
.nav nav a{font-size:14px;font-weight:500;color:#33473b}
.nav nav a:hover{color:var(--em)}
.nav .right{margin-left:auto;display:flex;align-items:center;gap:12px}

/* HERO (home) */
.hero{background:var(--em);color:#eef5ea;position:relative;overflow:hidden;border-bottom:6px solid var(--lime)}
.hero:before{content:"";position:absolute;inset:0;background:
  radial-gradient(50% 60% at 90% 0%,rgba(198,241,53,.16),transparent 60%),
  radial-gradient(40% 50% at 0% 100%,rgba(198,241,53,.08),transparent 60%)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:44px;padding:58px 22px 64px;align-items:center}
.kicker{color:var(--lime);font-weight:700;font-size:13px;letter-spacing:.14em;text-transform:uppercase}
.hero h1{font-size:52px;line-height:1.04;font-weight:700;margin:14px 0 14px;color:#fff}
.hero h1 span{color:var(--lime)}
.hero p.lead{font-size:18px;color:#cfe0d5;max-width:520px}
.searchbig{margin-top:26px;background:#fff;border-radius:16px;padding:8px 8px 8px 18px;display:flex;align-items:center;gap:10px;box-shadow:0 24px 50px -24px rgba(0,0,0,.5)}
.searchbig input{flex:1;border:none;outline:none;font-size:16px;color:var(--ink);background:transparent}
.qchips{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.qchips a{font-size:13px;padding:7px 13px;border-radius:999px;border:1px solid rgba(255,255,255,.22);color:#dcecdf}
.qchips a:hover{background:rgba(255,255,255,.1)}

.answer{background:#fff;color:var(--ink);border-radius:20px;overflow:hidden;box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}
.answer .top{background:var(--sand);padding:16px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.answer .q{font-family:'Space Grotesk';font-weight:700;font-size:16px;width:100%;margin-bottom:6px}
.answer .bd{padding:18px}
.answer .bd h4{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.answer .bd p{font-size:14px;color:#33473b}
.player{display:flex;align-items:center;gap:12px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-top:14px}
.play{width:34px;height:34px;border-radius:50%;background:var(--em);color:#fff;display:flex;align-items:center;justify-content:center;flex:0 0 auto;cursor:pointer;border:none;font-size:14px}
.bar{height:5px;background:#e3ead9;border-radius:4px;flex:1;position:relative;overflow:hidden}
.bar i{position:absolute;left:0;top:0;bottom:0;width:0%;background:var(--lime2);border-radius:4px;transition:width .2s}
.player small{font-size:12px;color:var(--muted)}

.trust{background:var(--em2);color:#cfe0d5}
.trust .wrap{display:flex;align-items:center;gap:14px;padding:13px 22px;font-size:13px;flex-wrap:wrap}
.trust .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(198,241,53,.18)}

section{padding:62px 0}
.shead{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:26px;gap:20px}
.shead h2{font-size:32px;font-weight:700}
.shead p{color:var(--muted);font-size:14px;margin-top:6px}
.link-all{color:var(--em);font-weight:700;font-size:14px;white-space:nowrap}

.clusters{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cluster{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;transition:transform .15s,box-shadow .15s}
.cluster:hover{transform:translateY(-3px);box-shadow:0 20px 40px -26px rgba(11,61,46,.4)}
.cluster .ic{width:44px;height:44px;border-radius:12px;background:#eef3e6;display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:12px}
.cluster h3{font-size:18px;margin-bottom:8px}
.cluster a.q{display:block;font-size:13.5px;color:#3a5145;padding:5px 0;border-bottom:1px dashed var(--line)}
.cluster a.q:hover{color:var(--em)}
.cluster .more{display:inline-block;margin-top:10px;font-size:13px;font-weight:700;color:var(--lime2)}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:transform .15s,box-shadow .15s;display:block}
.card:hover{transform:translateY(-4px);box-shadow:0 22px 44px -28px rgba(11,61,46,.45)}
.card .cover{height:148px;position:relative;display:block;background-size:cover;background-position:center}
.card .tag{position:absolute;top:12px;left:12px;font-size:11px;font-weight:700;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.92);color:var(--em)}
.card .body{padding:18px}
.card h3{font-size:17px;line-height:1.28;min-height:44px}
.card .foot{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap;align-items:center}
.card .foot .rt{font-size:12px;color:var(--muted);margin-left:auto}

.band{background:var(--em);color:#eef5ea;border-top:6px solid var(--lime)}
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.fcard{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:22px}
.fcard .ic{width:44px;height:44px;border-radius:12px;background:rgba(198,241,53,.16);display:flex;align-items:center;justify-content:center;margin-bottom:14px;font-size:20px}
.fcard h3{font-size:17px;margin-bottom:6px;color:#fff}
.fcard p{font-size:14px;color:#cfe0d5}

.cta-band{border-radius:24px;background:var(--card);border:1px solid var(--line);padding:44px;text-align:center;margin:40px 0;box-shadow:0 30px 60px -40px rgba(11,61,46,.5)}
.cta-band h2{font-size:30px;margin-bottom:10px}
.cta-band p{color:var(--muted);max-width:520px;margin:0 auto 20px}
.cta-band form{display:flex;gap:10px;max-width:440px;margin:0 auto}
.cta-band input{flex:1;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:13px 15px;font-size:14px}

footer{background:var(--em);color:#bcd0c2;padding:44px 0 30px;font-size:13px;border-top:6px solid var(--lime)}
.fcols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px;margin-bottom:26px}
.fcols h4{color:#fff;font-family:'Space Grotesk';font-size:14px;margin-bottom:12px}
.fcols a{display:block;padding:4px 0;color:#bcd0c2}
.fcols a:hover{color:var(--lime)}
.fine{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;line-height:1.7}

/* ===== ARTICLE PAGE ===== */
.arthead{background:var(--em);color:#eef5ea;border-bottom:6px solid var(--lime);position:relative;overflow:hidden}
.arthead:before{content:"";position:absolute;inset:0;background:radial-gradient(50% 70% at 92% 0%,rgba(198,241,53,.14),transparent 60%)}
.arthead .wrap{position:relative;padding:26px 22px 34px}
.crumbs{font-size:12.5px;color:#bcd0c2;margin-bottom:16px}
.crumbs a{color:#dcecdf}
.crumbs a:hover{color:var(--lime)}
.crumbs span{color:#8fae9c}
.arthead h1{font-size:40px;line-height:1.08;font-weight:700;color:#fff;max-width:900px;margin-bottom:16px}
.metarow{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.metarow .pill{background:rgba(255,255,255,.08);color:#dcecdf;border-color:rgba(255,255,255,.16)}
.metarow .chip-ai{background:rgba(198,241,53,.18);color:#eaf7c6;border-color:rgba(198,241,53,.3)}
.metarow .chip-audio{background:rgba(198,241,53,.14);color:#eaf7c6;border-color:rgba(198,241,53,.28)}

.artlayout{display:grid;grid-template-columns:250px 1fr;gap:40px;padding:40px 0 20px;align-items:start}
.toc{position:sticky;top:86px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px 18px 14px}
.toc .t{font-family:'Space Grotesk';font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--em);margin-bottom:10px}
.toc a{display:block;font-size:13px;color:#3a5145;padding:5px 0;border-left:2px solid transparent;padding-left:10px;margin-left:-2px}
.toc a:hover,.toc a.active{color:var(--em);border-left-color:var(--lime2);font-weight:600}
.toc-toggle{display:none}

.article-body{max-width:760px;font-size:17px;color:#243b31}
.article-body .hero-img{width:100%;border-radius:18px;border:1px solid var(--line);margin-bottom:8px}
.article-body .credit{font-size:12px;color:var(--muted);margin-bottom:24px}
.article-body .credit a{color:var(--em);text-decoration:underline}
.article-body h2{font-size:27px;font-weight:700;color:var(--ink);margin:34px 0 12px;scroll-margin-top:86px}
.article-body h3{font-size:20px;font-weight:600;color:var(--ink);margin:24px 0 10px}
.article-body p{margin-bottom:16px}
.article-body ul,.article-body ol{margin:0 0 18px 22px}
.article-body li{margin-bottom:8px}
.article-body a{color:var(--em);text-decoration:underline;text-underline-offset:2px}
.article-body a:hover{color:var(--lime2)}
.article-body strong{color:var(--ink)}
.article-body figure{margin:20px 0}
.article-body figure img{border-radius:14px;border:1px solid var(--line)}
.article-body figcaption{font-size:12.5px;color:var(--muted);margin-top:6px}

.tldr{background:#fff;border:1px solid var(--line);border-left:5px solid var(--lime);border-radius:14px;padding:20px 22px;margin-bottom:8px;box-shadow:0 18px 40px -30px rgba(11,61,46,.5)}
.tldr .t{font-family:'Space Grotesk';font-weight:700;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--em);margin-bottom:8px;display:flex;align-items:center;gap:7px}
.tldr p{font-size:16px;color:#243b31;margin:0}

.listen{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin:16px 0 26px}
.listen small{font-size:12px;color:var(--muted);white-space:nowrap}
.listen select{border:1px solid var(--line);border-radius:8px;padding:5px 7px;font-size:12px;background:var(--paper);color:var(--ink)}

table{border-collapse:collapse;width:100%;margin:18px 0;font-size:14.5px}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
th{background:#eef3e6;font-family:'Space Grotesk';font-weight:600;color:var(--em)}
tbody tr:nth-child(even){background:#faf8f2}

.callout{background:#eef3e6;border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:20px 0}
.callout .t{font-family:'Space Grotesk';font-weight:700;font-size:14px;color:var(--em);margin-bottom:6px}
.callout p{margin:0;font-size:15px}

.statgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:20px 0}
.statgrid .sc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px}
.statgrid .n{font-family:'Space Grotesk';font-weight:700;font-size:24px;color:var(--em)}
.statgrid .l{font-size:12px;color:var(--muted);margin-top:3px}

.faq{margin-top:14px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:2px 18px;margin-bottom:10px}
.faq summary{font-family:'Space Grotesk';font-weight:600;font-size:16px;color:var(--ink);padding:14px 0;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--lime2);font-size:20px;font-weight:700}
.faq details[open] summary:after{content:"\2212"}
.faq details p{padding:0 0 16px;margin:0;font-size:15px;color:#33473b}

.sources{background:var(--sand);border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin:28px 0}
.sources .t{font-family:'Space Grotesk';font-weight:700;font-size:14px;color:var(--em);margin-bottom:10px}
.sources ul{margin:0 0 10px 18px}
.sources li{font-size:14px;margin-bottom:6px}
.sources .verified{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:10px;margin-top:4px}

.related{margin:30px 0}
.related .t{font-family:'Space Grotesk';font-weight:700;font-size:20px;color:var(--ink);margin-bottom:14px}
.relgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.relgrid a{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;font-size:14.5px;font-weight:600;color:var(--em);transition:transform .15s,box-shadow .15s}
.relgrid a:hover{transform:translateY(-3px);box-shadow:0 16px 32px -24px rgba(11,61,46,.5)}
.relgrid a span{display:block;font-size:12px;color:var(--muted);font-weight:500;margin-top:6px}

.softcta{background:var(--em);color:#eef5ea;border-radius:18px;padding:30px 28px;margin:30px 0;text-align:center;border-top:5px solid var(--lime)}
.softcta h3{color:#fff;font-size:22px;margin-bottom:8px}
.softcta p{color:#cfe0d5;font-size:15px;max-width:520px;margin:0 auto 16px}
.softcta form{display:flex;gap:10px;max-width:420px;margin:0 auto}
.softcta input{flex:1;border:none;border-radius:10px;padding:12px 14px;font-size:14px}

.pagewrap{max-width:820px;margin:0 auto;padding:40px 22px 30px}
.pagewrap h1{font-size:36px;margin-bottom:8px;color:var(--ink)}
.pagewrap h2{font-size:24px;margin:26px 0 10px;color:var(--ink)}
.pagewrap p{margin-bottom:14px;font-size:16px;color:#243b31}
.pagewrap ul{margin:0 0 16px 22px}.pagewrap li{margin-bottom:7px}
.pagewrap a{color:var(--em);text-decoration:underline}

@media(max-width:960px){
 .hero .wrap{grid-template-columns:1fr;gap:28px}.hero h1{font-size:40px}
 .clusters,.grid,.feat{grid-template-columns:1fr 1fr}.fcols{grid-template-columns:1fr 1fr}
 .nav nav{display:none}
 .artlayout{grid-template-columns:1fr;gap:20px}
 .toc{position:static;top:auto}
 .toc-list{display:none}.toc-list.open{display:block}
 .toc-toggle{display:flex;justify-content:space-between;width:100%;background:none;border:none;font-family:'Space Grotesk';font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--em);cursor:pointer}
 .relgrid{grid-template-columns:1fr}
 .statgrid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){.clusters,.grid,.feat,.fcols{grid-template-columns:1fr}.hero h1{font-size:32px}.arthead h1{font-size:29px}.article-body{font-size:16px}}