/* deliverability-check.study — Pattern F (Report/Dashboard-First). Prefix: dx- */
:root{
  --dx-bg:#0b1020; --dx-bg2:#111835; --dx-card:#171f3d;
  --dx-line:rgba(255,255,255,.08);
  --dx-indigo:#1e1b4b; --dx-indigo2:#312e81; --dx-indigo3:#4338ca;
  --dx-cta:#f97316; --dx-cta2:#ea580c;
  --dx-green:#22c55e; --dx-red:#ef4444; --dx-yellow:#f59e0b;
  --dx-muted:#9aa5cf; --dx-fg:#e9ecff; --dx-fg2:#cbd2f0;
  --dx-radius:14px; --dx-mw:1120px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--dx-bg);color:var(--dx-fg);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:#a5b4fc;text-decoration:none}
a:hover{color:#fff}
img{max-width:100%;height:auto;display:block}
code{background:rgba(249,115,22,.12);color:#fdba74;padding:1px 7px;border-radius:5px;font-size:.92em;border:1px solid rgba(249,115,22,.3)}
.dx-container{max-width:var(--dx-mw);margin:0 auto;padding:0 22px}

.dx-nav{position:sticky;top:0;z-index:50;background:rgba(11,16,32,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--dx-line)}
.dx-nav-row{display:flex;align-items:center;justify-content:space-between;height:68px}
.dx-logo{font-weight:800;font-size:19px;letter-spacing:-.01em;color:#fff}
.dx-logo span{color:var(--dx-cta);font-weight:700}
.dx-nav-links{display:flex;align-items:center;gap:6px}
.dx-nav-links a{padding:8px 14px;border-radius:999px;color:var(--dx-fg2);font-size:14.5px;font-weight:500;transition:.15s}
.dx-nav-links a:hover{background:rgba(255,255,255,.06);color:#fff}
.dx-burger{display:none;background:none;border:0;color:#fff;font-size:22px;cursor:pointer}

.dx-cta-btn{display:inline-block;padding:11px 20px;border-radius:10px;background:linear-gradient(135deg,var(--dx-cta),var(--dx-cta2));color:#fff!important;font-weight:700;font-size:14.5px;letter-spacing:.01em;box-shadow:0 4px 14px rgba(249,115,22,.35),inset 0 1px 0 rgba(255,255,255,.2);transition:transform .15s,box-shadow .15s;border:0;cursor:pointer}
.dx-cta-btn:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(249,115,22,.5),inset 0 1px 0 rgba(255,255,255,.25)}
.dx-cta-btn.dx-lg{padding:15px 28px;font-size:16px;border-radius:12px}
.dx-ghost-btn{display:inline-block;padding:13px 22px;border-radius:12px;border:1px solid rgba(255,255,255,.18);color:#fff;font-weight:600}
.dx-ghost-btn:hover{background:rgba(255,255,255,.06)}

.dx-report-hero{background:radial-gradient(1200px 600px at 80% -100px,rgba(67,56,202,.55),transparent 60%),radial-gradient(900px 500px at 10% 0,rgba(30,27,75,.85),transparent 60%),linear-gradient(180deg,#0b1020 0%,#111835 100%);padding:64px 0 80px;border-bottom:1px solid var(--dx-line)}
.dx-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.dx-eyebrow{display:inline-block;padding:5px 12px;border-radius:999px;background:rgba(249,115,22,.14);color:#fdba74;font-size:12.5px;font-weight:600;letter-spacing:.03em;text-transform:uppercase;border:1px solid rgba(249,115,22,.25)}
.dx-hero-copy h1{font-size:clamp(34px,4.4vw,52px);line-height:1.08;margin:18px 0 14px;letter-spacing:-.02em;color:#fff;font-weight:800}
.dx-lead{color:var(--dx-fg2);font-size:18px;max-width:560px}
.dx-hero-actions{display:flex;gap:14px;margin:26px 0 14px;flex-wrap:wrap}
.dx-hero-note{color:var(--dx-muted);font-size:13.5px;margin-top:8px}

.dx-report-card{background:linear-gradient(180deg,#1a2247,#10173a);border:1px solid rgba(165,180,252,.18);border-radius:18px;padding:24px;box-shadow:0 30px 60px -20px rgba(0,0,0,.7)}
.dx-rc-head{display:flex;justify-content:space-between;align-items:center;color:var(--dx-fg2);font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;margin-bottom:18px}
.dx-rc-tag{background:rgba(34,197,94,.15);color:#86efac;padding:3px 8px;border-radius:6px;font-size:11px;border:1px solid rgba(34,197,94,.3);text-transform:none;letter-spacing:0}
.dx-gauge{position:relative;width:100%;aspect-ratio:2/1;background:conic-gradient(from 180deg at 50% 100%,var(--dx-red) 0%,var(--dx-yellow) 30%,var(--dx-green) 60% 100%);border-radius:200px 200px 0 0;margin:6px auto 18px;overflow:hidden;mask:radial-gradient(circle at 50% 100%,transparent 56%,#000 57%)}
.dx-gauge-num{position:absolute;left:0;right:0;bottom:10px;text-align:center;color:#fff;font-size:34px;font-weight:800}
.dx-gauge-num small{display:block;font-size:13px;color:var(--dx-fg2);font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-top:2px}

.dx-provider-tile{display:grid;grid-template-columns:130px 1fr 90px;gap:12px;align-items:center;padding:8px 0;border-top:1px dashed var(--dx-line)}
.dx-pt-name{color:#fff;font-weight:600;font-size:14px}
.dx-pt-bar{height:10px;background:rgba(255,255,255,.05);border-radius:999px;overflow:hidden}
.dx-pt-bar span{display:block;height:100%;border-radius:999px}
.dx-pt-bar .g{background:linear-gradient(90deg,#22c55e,#10b981)}
.dx-pt-bar .y{background:linear-gradient(90deg,#f59e0b,#f97316)}
.dx-pt-bar .r{background:linear-gradient(90deg,#ef4444,#dc2626)}
.dx-pt-score{color:var(--dx-fg2);font-size:13px;text-align:right;font-variant-numeric:tabular-nums}
.dx-rc-foot{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:14px;padding-top:14px;border-top:1px dashed var(--dx-line);color:var(--dx-fg2);font-size:13px}
.dx-rc-foot b{color:#fff;margin-right:8px}
.dx-chip{padding:3px 9px;border-radius:6px;font-size:11.5px;font-weight:700;letter-spacing:.04em}
.dx-chip.g{background:rgba(34,197,94,.15);color:#86efac;border:1px solid rgba(34,197,94,.3)}

.dx-steps{padding:64px 0 8px}
.dx-steps h2{font-size:30px;text-align:center;margin:0 0 32px;letter-spacing:-.01em}
.dx-step-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.dx-step{background:var(--dx-card);border:1px solid var(--dx-line);border-radius:var(--dx-radius);padding:24px;position:relative;margin-top:12px}
.dx-step-n{position:absolute;top:-18px;left:24px;width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--dx-cta),var(--dx-cta2));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;box-shadow:0 6px 18px rgba(249,115,22,.4)}
.dx-step h3{margin:8px 0 8px;color:#fff;font-size:18px}
.dx-step p{margin:0;color:var(--dx-fg2);font-size:14.5px}

.dx-section{padding:56px 0}
.dx-section h2{font-size:30px;margin:0 0 14px;letter-spacing:-.01em}
.dx-section-lead{color:var(--dx-fg2);max-width:740px;margin-bottom:28px}
.dx-band{background:linear-gradient(180deg,#0f1530,#0b1020)}

.dx-provider-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;background:var(--dx-card);border:1px solid var(--dx-line);border-radius:var(--dx-radius);padding:20px 24px}
.dx-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.dx-feature{background:var(--dx-card);border:1px solid var(--dx-line);border-radius:var(--dx-radius);padding:22px;border-top:3px solid var(--dx-indigo3)}
.dx-feature h3{margin:0 0 10px;font-size:17px;color:#fff}
.dx-feature p{margin:0;color:var(--dx-fg2);font-size:14.5px}

.dx-compare-snap{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.dx-cs-img img{border-radius:18px;box-shadow:0 30px 60px -20px rgba(0,0,0,.7)}
.dx-fineprint{color:var(--dx-muted);font-size:12.5px;margin-top:8px}

.dx-table{width:100%;border-collapse:collapse;background:var(--dx-card);border:1px solid var(--dx-line);border-radius:var(--dx-radius);overflow:hidden;font-size:14.5px;margin:14px 0}
.dx-table th,.dx-table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--dx-line)}
.dx-table th{background:rgba(67,56,202,.18);color:#fff;font-weight:700;font-size:13.5px;letter-spacing:.02em;text-transform:uppercase}
.dx-table tr:last-child td{border-bottom:0}
.dx-table .g{color:#86efac;font-weight:700}
.dx-table .r{color:#fca5a5;font-weight:700}
.dx-table .y{color:#fcd34d;font-weight:700}
.dx-pricing td:first-child{font-weight:700}

.dx-cta-band{background:radial-gradient(800px 400px at 50% 100%,rgba(249,115,22,.18),transparent 60%),linear-gradient(135deg,var(--dx-indigo),var(--dx-indigo3));padding:60px 0;text-align:center;border-top:1px solid var(--dx-line);border-bottom:1px solid var(--dx-line);margin-top:40px}
.dx-cta-band h2{font-size:32px;margin:0 0 12px;color:#fff;letter-spacing:-.01em}
.dx-cta-band p{color:#dde1f8;max-width:620px;margin:0 auto 24px}

.dx-page-head{padding:38px 0 18px;background:linear-gradient(180deg,#0e1530,#0b1020);border-bottom:1px solid var(--dx-line)}
.dx-page-head h1{font-size:clamp(28px,3.6vw,40px);margin:8px 0 10px;letter-spacing:-.01em;color:#fff}
.dx-crumb{font-size:13.5px;color:var(--dx-muted)}
.dx-crumb a{color:var(--dx-fg2)}
.dx-crumb i{font-style:normal;color:var(--dx-muted);margin:0 4px}

.dx-article{padding:32px 0 12px}
.dx-article h2{font-size:24px;margin:32px 0 12px;color:#fff;letter-spacing:-.005em}
.dx-article h3{font-size:18px;margin:22px 0 10px;color:#fff}
.dx-article p,.dx-article li{color:var(--dx-fg2);font-size:15.5px}
.dx-article ul{padding-left:22px}
.dx-article a{color:#a5b4fc;border-bottom:1px dashed rgba(165,180,252,.45)}
.dx-article a:hover{color:#fff;border-bottom-color:#fff}

.dx-metric-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin:8px 0 28px}
.dx-metric-tile{background:var(--dx-card);border:1px solid var(--dx-line);border-radius:12px;padding:16px;border-left:3px solid var(--dx-cta)}
.dx-mt-num{font-size:24px;font-weight:800;color:#fff;letter-spacing:-.01em}
.dx-mt-lab{font-size:12.5px;color:var(--dx-muted);text-transform:uppercase;letter-spacing:.04em;margin-top:2px}

.dx-inline-cta{background:linear-gradient(135deg,rgba(67,56,202,.35),rgba(30,27,75,.55));border:1px solid rgba(165,180,252,.2);border-radius:var(--dx-radius);padding:18px 22px;margin:24px 0;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.dx-inline-cta p{margin:0;color:#fff;font-size:15px;flex:1 1 280px}

.dx-evidence{background:rgba(249,115,22,.08);border:1px solid rgba(249,115,22,.25);border-radius:12px;padding:14px 18px;font-size:13.5px;color:#fde6d3;margin:24px 0}
.dx-evidence b{color:#fdba74}

.dx-faq h2{font-size:24px;margin-bottom:14px}
.dx-faq-item{background:var(--dx-card);border:1px solid var(--dx-line);border-radius:12px;margin-bottom:10px;padding:0 18px}
.dx-faq-item summary{cursor:pointer;padding:14px 0;font-weight:600;color:#fff;list-style:none;display:flex;justify-content:space-between;align-items:center;font-size:15px;gap:14px}
.dx-faq-item summary::-webkit-details-marker{display:none}
.dx-faq-item summary::after{content:"+";color:var(--dx-cta);font-size:22px;font-weight:300}
.dx-faq-item[open] summary::after{content:"−"}
.dx-faq-a{padding:4px 0 16px;color:var(--dx-fg2);font-size:14.5px}

.dx-related{margin:28px 0;background:var(--dx-card);border:1px solid var(--dx-line);border-radius:var(--dx-radius);padding:18px 22px}
.dx-related h2{font-size:18px;margin:0 0 10px;color:#fff}
.dx-related ul{margin:0;padding-left:18px}
.dx-related li{color:var(--dx-fg2);margin:5px 0}

.dx-footer{background:linear-gradient(180deg,#080c1b,#05080f);border-top:1px solid var(--dx-line);padding:50px 0 28px}
.dx-foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
.dx-foot-col h4{margin:0 0 10px;font-size:13px;color:#fff;letter-spacing:.06em;text-transform:uppercase}
.dx-foot-col a{display:block;color:var(--dx-muted);font-size:14px;margin:5px 0}
.dx-foot-col a:hover{color:#fff}
.dx-foot-brand p{color:var(--dx-muted);font-size:13.5px;max-width:380px}
.dx-foot-legal{margin-top:30px;padding-top:18px;border-top:1px solid var(--dx-line);color:var(--dx-muted);font-size:12.5px;line-height:1.6}

@media (max-width:900px){
  .dx-nav-links{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;gap:0;background:#0b1020;border-bottom:1px solid var(--dx-line);padding:8px 16px 16px}
  .dx-nav-links.open{display:flex}
  .dx-nav-links a{width:100%;padding:11px 8px;border-radius:8px}
  .dx-burger{display:block}
  .dx-hero-grid{grid-template-columns:1fr;gap:32px}
  .dx-step-row,.dx-feature-grid{grid-template-columns:1fr}
  .dx-provider-grid{grid-template-columns:1fr}
  .dx-compare-snap{grid-template-columns:1fr;gap:22px}
  .dx-foot-grid{grid-template-columns:1fr 1fr;gap:24px}
}
@media (max-width:600px){
  .dx-foot-grid{grid-template-columns:1fr}
  .dx-section,.dx-steps,.dx-report-hero{padding-top:42px;padding-bottom:42px}
  .dx-cta-band h2{font-size:24px}
  .dx-table th,.dx-table td{padding:10px 12px;font-size:13.5px}
}
@media print{
  .dx-nav,.dx-footer,.dx-cta-band,.dx-cta-btn,.dx-ghost-btn,.dx-inline-cta{display:none!important}
  body{background:#fff;color:#000}
  .dx-article p,.dx-article li,.dx-lead{color:#222}
}