/* W8R article, blog, and area pages */
:root{
  --brand:#3254e8;--brand-d:#1e3ab8;--brand-l:#eef2ff;
  --ink:#0c1f31;--t1:#0c1f31;--t2:#334a5e;--t3:#7a8fa6;
  --bg:#f8fafc;--surface:#fff;--sunken:#f1f5f9;
  --border:#e2eaf3;--ok:#15803d;--ok-m:#dcfce7;
  --max:1120px;--nav-h:64px;
  --sh:0 8px 24px rgba(12,31,49,.06);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,sans-serif;font-size:17px;line-height:1.65;color:var(--t1);background:var(--bg)}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.skip{position:absolute;left:12px;top:-40px;background:#fff;padding:8px 12px;z-index:20}
.skip:focus{top:12px}

.top{position:sticky;top:0;z-index:10;height:var(--nav-h);background:rgba(248,250,252,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.top-inner,.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.top-inner{height:100%;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;color:var(--t1);font-weight:800;letter-spacing:-.03em;text-decoration:none}
.brand:hover{text-decoration:none}
.mark{width:34px;height:34px;border-radius:8px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:.82rem}
.brand b{color:var(--brand);font-weight:800}
.top nav{margin-left:auto;display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.top nav a{color:var(--t2);font-size:.9rem;font-weight:600;padding:8px 10px;text-decoration:none}
.top nav a:hover{color:var(--t1)}
.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff!important;border-radius:8px;padding:10px 16px;font-weight:700;text-decoration:none!important}
.btn:hover{background:var(--brand-d)}
.btn.light{background:#fff;color:var(--ink)!important;border:1px solid var(--border)}

.crumbs{padding:22px 0 0;font-size:.86rem;color:var(--t3)}
.crumbs a{color:var(--t2);font-weight:600}
.crumbs span{margin:0 6px}

article,.panel{background:var(--surface);border:1px solid var(--border);border-radius:20px;box-shadow:var(--sh)}
article{padding:36px 40px 28px;margin:18px 0 28px}
.kicker{font-size:.74rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--brand);margin:0 0 10px}
h1{font-size:clamp(1.8rem,3vw,2.5rem);line-height:1.15;letter-spacing:-.03em;margin:0 0 14px}
.lead{font-size:1.12rem;color:var(--t2);margin:0 0 8px}
.updated{color:var(--t3);font-size:.85rem;margin:0 0 22px}
h2{font-size:1.35rem;letter-spacing:-.02em;margin:32px 0 10px;line-height:1.25}
h3{font-size:1.05rem;margin:22px 0 8px}
p{margin:0 0 14px}
ul,ol{margin:0 0 16px;padding-left:1.2rem}
li{margin:0 0 8px}
li::marker{color:var(--brand)}
.note{background:var(--sunken);border-radius:12px;padding:14px 16px;color:var(--t2);margin:8px 0 18px}
.cta{background:var(--ink);color:#fff;border-radius:16px;padding:22px 22px 18px;margin:28px 0 8px}
.cta h2{color:#fff;margin-top:0}
.cta p{color:rgba(255,255,255,.78)}
.cta .actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.cta .btn.light{border-color:transparent}

.layout{display:grid;grid-template-columns:1fr 280px;gap:22px;align-items:start;padding-bottom:48px}
.side{position:sticky;top:84px;display:flex;flex-direction:column;gap:14px}
.side .panel{padding:16px 16px 8px}
.side h2{font-size:.95rem;margin:0 0 10px}
.side a{display:block;padding:8px 0;border-top:1px solid var(--border);color:var(--t1);font-weight:600;font-size:.92rem}
.side a:hover{color:var(--brand)}

.zone{margin:0 0 26px}
.zone h2{margin-top:8px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px 14px 12px;color:var(--t1);text-decoration:none;box-shadow:var(--sh)}
.card:hover{border-color:#c4d0ff;text-decoration:none}
.card strong{display:block;letter-spacing:-.02em;margin-bottom:4px}
.card span{display:block;color:var(--t2);font-size:.88rem;font-weight:500;line-height:1.45}

.sample{margin:8px 0 22px;background:#0f2035;color:#fff;border-radius:16px;padding:16px 16px 12px;overflow-x:auto}
.sample figcaption{display:flex;justify-content:space-between;gap:12px;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.55);margin-bottom:10px}
.sample table{width:100%;border-collapse:collapse;font-size:.92rem}
.sample th,.sample td{text-align:left;padding:8px 6px;border-bottom:1px solid rgba(255,255,255,.08);font-weight:600}
.sample th{color:rgba(255,255,255,.45);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase}
.sample .foot,.sample .cap{margin:8px 0 0;font-size:.82rem;color:rgba(255,255,255,.62)}
.uses{display:grid;gap:10px;margin:0 0 8px}
.use{border:1px solid var(--border);border-radius:12px;padding:12px 14px;background:var(--bg)}
.use strong{display:block;margin-bottom:4px}
.use p{margin:0;color:var(--t2)}
.faqs{display:flex;flex-direction:column;gap:8px;margin:0 0 8px}
.faqs details{border:1px solid var(--border);border-radius:12px;padding:12px 14px;background:var(--bg)}
.faqs summary{font-weight:700;cursor:pointer}
.faqs p{margin:8px 0 0;color:var(--t2)}

.footer{background:#060f1d;color:rgba(255,255,255,.55);padding:28px 0}
.footer .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.86rem}
.footer a{color:rgba(255,255,255,.72);font-weight:600}

@media(max-width:900px){
  article{padding:26px 18px 18px}
  .layout{grid-template-columns:1fr}
  .side{position:static}
  .cards{grid-template-columns:1fr}
  .top nav a:not(.btn){display:none}
  .top nav a.btn{padding:8px 12px}
}
@media(max-width:600px){
  .cards{grid-template-columns:1fr}
}