:root{--ink:#10222e;--ink2:#3d5566;--mut:#5c7282;--bg:#ffffff;--soft:#f2f7f7;--soft2:#e9f2f1;
--teal:#0e7c7b;--teal-d:#0a5f5e;--pin:#e4572e;--line:#d9e4e6;--dark:#0d1f2a;--rad:14px;
--font:'Poppins',system-ui,-apple-system,'Segoe UI',sans-serif}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--teal-d);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:3px solid var(--pin);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:0;background:var(--dark);color:#fff;padding:10px 16px;z-index:99}
.skip:focus{left:8px;top:8px}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
h1{font-size:2.35rem;line-height:1.18;font-weight:700;letter-spacing:-.01em}
h2{font-size:1.72rem;line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-bottom:12px}
h3{font-size:1.08rem;line-height:1.35;font-weight:600;margin-bottom:6px}
p{margin-bottom:12px;color:var(--ink2)}
.lead{font-size:1.06rem}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--teal-d);background:var(--soft2);padding:5px 12px;border-radius:99px;margin-bottom:14px}
.btn{display:inline-flex;align-items:center;gap:9px;background:var(--teal);color:#fff;font-weight:600;padding:13px 26px;border-radius:10px;border:1px solid var(--teal);transition:background .2s,transform .2s}
.btn:hover{background:var(--teal-d);text-decoration:none;transform:translateY(-1px)}
.btn.ghost{background:#fff;color:var(--teal-d)}
.btn.ghost:hover{background:var(--soft)}
.btn.pin{background:var(--pin);border-color:var(--pin)}
.btn.pin:hover{background:#c74722}
.btn.sm{padding:9px 18px;font-size:.92rem}
/* header */
.topbar{background:var(--dark);color:#cfe0e4;font-size:.82rem}
.topbar .wrap{display:flex;justify-content:space-between;gap:16px;padding-top:7px;padding-bottom:7px;flex-wrap:wrap}
.topbar a{color:#fff}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);transition:box-shadow .2s}
header.site.scrolled{box-shadow:0 6px 24px rgba(16,34,46,.10)}
.hrow{display:flex;align-items:center;gap:28px;padding:13px 0}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:1.28rem;white-space:nowrap}
.logo:hover{text-decoration:none}
.logo svg{width:36px;height:36px;flex:none}
.logo em{font-style:normal;color:var(--teal)}
nav.main{display:flex;gap:4px;margin:0 auto;flex-wrap:wrap}
nav.main a{color:var(--ink2);font-weight:500;padding:8px 13px;border-radius:8px;font-size:.95rem}
nav.main a:hover{background:var(--soft);text-decoration:none;color:var(--ink)}
nav.main a[aria-current]{color:var(--teal-d);box-shadow:inset 0 -3px 0 var(--teal)}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:9px;padding:9px 12px;font:inherit;cursor:pointer;margin-left:auto}
/* sections — compact rhythm, no giant empty bands */
section{padding:52px 0}
section.soft{background:var(--soft)}
section.dark{background:var(--dark);color:#dcebee}
section.dark p{color:#b9cfd6}
section.dark h2,section.dark h3{color:#fff}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.split.top{align-items:start}
.kicker{font-size:.8rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--pin);margin-bottom:8px}
/* hero */
.hero{padding:56px 0 48px;background:linear-gradient(180deg,#f4f9f9 0%,#fff 88%)}
.hero p{max-width:56ch}
.meta-row{display:flex;gap:8px 22px;flex-wrap:wrap;margin:16px 0 22px;font-size:.9rem;color:var(--mut)}
.meta-row b{color:var(--ink);font-weight:600}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.device{background:var(--dark);border-radius:22px;padding:18px;color:#dcebee;box-shadow:0 24px 50px rgba(13,31,42,.22)}
.device .bar{display:flex;justify-content:space-between;align-items:center;font-size:.8rem;color:#9db8c2;margin-bottom:12px}
.pin-badge{background:var(--pin);color:#fff;border-radius:99px;padding:3px 11px;font-weight:600}
.coord{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.coord div{background:#16303f;border:1px solid #24485c;border-radius:10px;padding:9px 12px;font-size:.85rem}
.coord b{display:block;color:#fff;font-size:.98rem}
.figcap{font-size:.85rem;color:var(--mut);margin-top:9px;text-align:center}
/* facts strip */
.facts{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.facts .wrap{display:grid;grid-template-columns:repeat(6,1fr);gap:0}
.fact{padding:18px 16px;border-left:1px solid var(--line)}
.fact:first-child{border-left:none}
.fact b{display:block;font-size:.98rem}
.fact span{font-size:.83rem;color:var(--mut)}
/* tables / info */
table.spec{width:100%;border-collapse:collapse;font-size:.95rem}
table.spec th,table.spec td{text-align:left;padding:10px 13px;border-bottom:1px solid var(--line);vertical-align:top}
table.spec th{width:38%;font-weight:600;color:var(--ink);background:var(--soft)}
table.spec tr:last-child th,table.spec tr:last-child td{border-bottom:none}
.panel{border:1px solid var(--line);border-radius:var(--rad);padding:22px;background:#fff}
.panel.fill{background:var(--soft);border-color:var(--soft2)}
.panel h3{margin-bottom:8px}
ul.tick{list-style:none}
ul.tick li{padding:7px 0 7px 28px;position:relative;color:var(--ink2);border-bottom:1px dashed var(--line)}
ul.tick li:last-child{border-bottom:none}
ul.tick li::before{content:"";position:absolute;left:2px;top:13px;width:14px;height:8px;border-left:3px solid var(--teal);border-bottom:3px solid var(--teal);transform:rotate(-45deg)}
ol.steps{list-style:none;counter-reset:st}
ol.steps li{padding:8px 0 8px 40px;position:relative;color:var(--ink2);border-bottom:1px dashed var(--line)}
ol.steps li:last-child{border-bottom:none}
ol.steps li::before{counter-increment:st;content:counter(st);position:absolute;left:0;top:7px;width:27px;height:27px;border-radius:50%;background:var(--teal);color:#fff;font-weight:600;font-size:.85rem;display:flex;align-items:center;justify-content:center}
/* editorial lists */
.edlist{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.editem{padding:18px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:44px 1fr;gap:14px}
.editem svg{width:40px;height:40px}
.editem p{margin-bottom:0}
/* compare table */
table.cmp{width:100%;border-collapse:collapse;font-size:.95rem;background:#fff}
table.cmp th,table.cmp td{padding:11px 14px;border:1px solid var(--line);text-align:left;vertical-align:top}
table.cmp thead th{background:var(--dark);color:#fff}
table.cmp tbody th{font-weight:600;background:var(--soft);width:22%}
/* timeline */
.journey{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative}
.jstep{border-top:3px solid var(--teal);padding-top:14px}
.jstep .n{display:inline-flex;width:30px;height:30px;border-radius:50%;background:var(--teal);color:#fff;font-weight:600;align-items:center;justify-content:center;margin-bottom:9px;font-size:.88rem}
.jstep p{margin-bottom:0;font-size:.94rem}
/* download */
.dl-box{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}
.dl-box .head{background:var(--dark);color:#fff;padding:18px 22px;display:flex;justify-content:space-between;gap:12px;align-items:center;flex-wrap:wrap}
.dl-box .body{padding:20px 22px}
.dl-box .cta{padding:0 22px 22px}
/* columns pair */
.pair{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.usecols{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:var(--rad);overflow:hidden}
.usecol{padding:24px;border-left:1px solid var(--line);background:#fff}
.usecol:first-child{border-left:none}
.usecol p{margin-bottom:0}
/* guides */
.gfeat{display:grid;grid-template-columns:1.15fr .85fr;gap:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
.gfeat .txt{padding:28px}
.gfeat img,.gfeat svg{width:100%;height:100%;object-fit:cover}
.glist{margin-top:8px}
.grow{display:grid;grid-template-columns:120px 1fr auto;gap:20px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
.grow img,.grow svg{border-radius:10px;width:120px;height:84px;object-fit:cover}
.grow p{margin-bottom:0}
.gcard-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.gcard{border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;background:#fff;display:flex;flex-direction:column}
.gcard .txt{padding:20px 22px}
.gcard svg{width:100%;height:auto}
/* faq — two balanced columns, full width */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:0 44px;align-items:start}
.faq details{border-bottom:1px solid var(--line);padding:13px 2px}
.faq summary{cursor:pointer;font-weight:600;font-size:1rem;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--teal);font-size:1.25rem;font-weight:600;line-height:1}
.faq details[open ] summary::after{content:"–"}
.faq details p{margin:9px 0 2px}
/* article */
.crumb{font-size:.86rem;color:var(--mut);margin-bottom:14px}
.art{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start}
.art aside{position:sticky;top:108px;border:1px solid var(--line);border-radius:var(--rad);padding:20px;background:var(--soft)}
.art aside h3{font-size:.95rem}
.art aside ol{margin-left:18px;color:var(--ink2);font-size:.93rem}
.art aside li{margin:6px 0}
.art figure{margin:6px 0 20px}
.note{border-left:4px solid var(--teal);background:var(--soft);padding:14px 18px;border-radius:0 10px 10px 0;margin:16px 0}
.note p{margin-bottom:0}
.note.warn{border-color:var(--pin)}
.art ul,.art ol.body{margin:0 0 14px 20px;color:var(--ink2)}
.art li{margin:5px 0}
.rel{display:grid;grid-template-columns:1fr 1fr;gap:26px}
/* forms */
form .fld{margin-bottom:15px}
label{display:block;font-weight:600;font-size:.92rem;margin-bottom:5px}
input,select,textarea{width:100%;font:inherit;padding:11px 13px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink)}
textarea{min-height:130px}
.err{color:#b3371a;font-size:.86rem;min-height:1.1em}
.formnote{font-size:.9rem;color:var(--mut)}
/* footer */
footer.site{background:var(--dark);color:#c3d5dc;margin-top:0}
footer .top{padding:44px 0 8px;display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:36px}
footer h3{color:#fff;font-size:1rem;margin-bottom:12px}
footer ul{list-style:none}
footer li{margin:7px 0}
footer a{color:#c3d5dc}
footer a:hover{color:#fff}
footer .brand p{color:#9db8c2;max-width:38ch}
footer .bottom{border-top:1px solid #24485c;margin-top:26px;padding:18px 0 24px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.86rem;color:#9db8c2}
.ctaband{background:var(--teal-d);color:#fff}
.ctaband .wrap{display:flex;justify-content:space-between;align-items:center;gap:26px;padding-top:34px;padding-bottom:34px;flex-wrap:wrap}
.ctaband p{color:#d7efee;margin-bottom:0;max-width:58ch}
.ctaband h2{color:#fff;margin-bottom:6px}
.pagehead{padding:44px 0 6px}
@media(max-width:1020px){
.facts .wrap{grid-template-columns:repeat(3,1fr)}
.fact{border-top:1px solid var(--line)}
.journey{grid-template-columns:repeat(2,1fr)}
.art{grid-template-columns:1fr}
.art aside{position:static;order:-1}
}
@media(max-width:820px){
nav.main{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px;flex-direction:column}
nav.main.open{display:flex}
.burger{display:block}
.hrow .btn{display:none}
.split,.pair,.edlist,.faq,.gfeat,.gcard-grid,.rel,.usecols{grid-template-columns:1fr}
.usecol{border-left:none;border-top:1px solid var(--line)}
.usecol:first-child{border-top:none}
footer .top{grid-template-columns:1fr 1fr}
h1{font-size:1.85rem}h2{font-size:1.45rem}
section{padding:40px 0}
.grow{grid-template-columns:84px 1fr}
.grow .btn{display:none}
.grow svg{width:84px;height:60px}
}
@media(max-width:480px){
.facts .wrap{grid-template-columns:1fr 1fr}
.journey{grid-template-columns:1fr}
footer .top{grid-template-columns:1fr}
.coord{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}