:root{
  --ink:#060d1a;--ink2:#0a1628;--ink3:#0d1e38;
  --teal:#00e5c0;--teal2:#00b89a;--blue:#1a6fff;--gold:#f5c842;
  --purple:#c4a4f8;--white:#eef4ff;--muted:#6b87ad;
  --ff-disp:'Anton',sans-serif;--ff-body:'Plus Jakarta Sans',sans-serif;--ff-mono:'Space Mono',monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--ink);color:var(--white);font-family:var(--ff-body);line-height:1.7}
a{color:var(--purple);text-decoration:none}
a:hover{text-decoration:underline}

nav{position:fixed;top:0;left:0;right:0;z-index:200;display:flex;align-items:center;justify-content:space-between;padding:0 48px;height:66px;background:rgba(6,13,26,.93);backdrop-filter:blur(16px);border-bottom:1px solid rgba(0,229,192,.1)}
.logo-text{font-family:var(--ff-disp);font-size:17px;letter-spacing:3px;color:var(--white)}
.logo-sub{font-size:9px;letter-spacing:3px;text-transform:uppercase;color:var(--teal)}
.nav-back{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:6px;transition:color .2s}
.nav-back:hover{color:var(--white);text-decoration:none}

.article-hero{padding:110px 0 56px;text-align:center;background:linear-gradient(180deg,rgba(196,164,248,.04) 0%,transparent 100%);border-bottom:1px solid rgba(255,255,255,.06)}
.tag-chip{display:inline-block;padding:4px 13px;border-radius:20px;font-size:11px;font-weight:600;letter-spacing:1px;background:rgba(196,164,248,.12);color:var(--purple);border:1px solid rgba(196,164,248,.3);margin-bottom:20px}
.article-hero h1{font-family:var(--ff-disp);font-size:clamp(32px,5vw,58px);letter-spacing:2px;line-height:1.05;max-width:820px;margin:0 auto 18px}
.article-hero .deck{font-size:17px;color:rgba(238,244,255,.65);max-width:600px;margin:0 auto 28px;line-height:1.65}
.meta{display:flex;align-items:center;justify-content:center;gap:20px;font-size:12px;color:var(--muted);letter-spacing:.5px}

.article-wrap{max-width:720px;margin:0 auto;padding:60px 24px 100px}

h2{font-family:var(--ff-disp);font-size:26px;letter-spacing:1.5px;color:var(--purple);margin:52px 0 16px;padding-bottom:10px;border-bottom:1px solid rgba(196,164,248,.15)}
h3{font-size:16px;font-weight:700;color:var(--white);margin:28px 0 10px;letter-spacing:.3px}
p{margin-bottom:18px;color:rgba(238,244,255,.88);font-size:15.5px}
ul,ol{margin:0 0 18px 22px;color:rgba(238,244,255,.88);font-size:15.5px}
li{margin-bottom:8px}
strong{color:var(--white);font-weight:600}

.callout{border-left:3px solid var(--purple);background:rgba(196,164,248,.05);border-radius:0 10px 10px 0;padding:18px 20px;margin:28px 0;font-size:14.5px;color:rgba(238,244,255,.85)}
.callout.gold{border-color:var(--gold);background:rgba(245,200,66,.05)}
.callout.teal{border-color:var(--teal);background:rgba(0,229,192,.05)}
.callout.warn{border-color:#f87171;background:rgba(248,113,113,.05)}
.callout strong{color:var(--purple)}
.callout.gold strong{color:var(--gold)}
.callout.teal strong{color:var(--teal)}
.callout.warn strong{color:#f87171}

/* DECISION TREE */
.decision-tree{background:rgba(255,255,255,.02);border:1px solid rgba(196,164,248,.15);border-radius:16px;padding:28px;margin:32px 0}
.decision-tree h3{margin-top:0;color:var(--purple);font-family:var(--ff-mono);font-size:13px;letter-spacing:2px;text-transform:uppercase}
.dt-row{display:flex;gap:0;margin-top:16px}
.dt-q{flex:1;background:rgba(196,164,248,.07);border:1px solid rgba(196,164,248,.2);border-radius:10px;padding:14px;font-size:14px;line-height:1.5}
.dt-q strong{display:block;color:var(--purple);margin-bottom:4px;font-size:12px;letter-spacing:1px;text-transform:uppercase}
.dt-arrow{display:flex;align-items:center;padding:0 12px;color:var(--muted);font-size:20px}
.dt-a{flex:1;background:rgba(0,229,192,.05);border:1px solid rgba(0,229,192,.2);border-radius:10px;padding:14px;font-size:14px;line-height:1.5}
.dt-a strong{display:block;color:var(--teal);margin-bottom:4px;font-size:12px;letter-spacing:1px;text-transform:uppercase}

/* COMPARISON TABLE */
table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
th{background:rgba(196,164,248,.08);color:var(--purple);font-weight:600;padding:10px 14px;text-align:left;letter-spacing:.5px;border-bottom:1px solid rgba(196,164,248,.2)}
td{padding:10px 14px;border-bottom:1px solid rgba(255,255,255,.05);color:rgba(238,244,255,.85)}
tr:hover td{background:rgba(255,255,255,.02)}
td:first-child{color:var(--muted);font-size:13px}
.yes{color:#4ade80}
.no{color:#f87171}

/* PRODUCT MAPPING */
.product-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:24px 0}
.product-card{border-radius:12px;padding:18px}
.product-card.past{background:rgba(0,229,192,.05);border:1px solid rgba(0,229,192,.2)}
.product-card.cold{background:rgba(196,164,248,.05);border:1px solid rgba(196,164,248,.2)}
.pc-label{font-size:10px;letter-spacing:2px;text-transform:uppercase;margin-bottom:10px;font-weight:600}
.product-card.past .pc-label{color:var(--teal)}
.product-card.cold .pc-label{color:var(--purple)}
.product-card ul{margin:0;list-style:none;padding:0}
.product-card li{font-size:13px;color:rgba(238,244,255,.8);padding:4px 0;border-bottom:1px solid rgba(255,255,255,.05)}
.product-card li:last-child{border:none}

.cta-block{background:linear-gradient(135deg,rgba(196,164,248,.08),rgba(0,229,192,.05));border:1px solid rgba(196,164,248,.2);border-radius:16px;padding:40px;text-align:center;margin-top:60px}
.cta-block h2{border:none;margin:0 0 12px;font-size:28px;color:var(--teal)}
.cta-block p{max-width:460px;margin:0 auto 24px}
.cta-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;background:var(--teal);color:var(--ink);border-radius:8px;font-weight:700;font-size:14px;letter-spacing:.4px;transition:all .25s}
.cta-btn:hover{background:var(--teal2);transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,229,192,.25);text-decoration:none}

footer{border-top:1px solid rgba(255,255,255,.06);padding:32px 48px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}

@media(max-width:640px){
  nav{padding:0 20px}
  .article-hero{padding:90px 20px 40px}
  .article-wrap{padding:40px 20px 80px}
  /* wide data tables scroll inside themselves instead of widening the page */
  table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .product-grid{grid-template-columns:1fr}
  .dt-row{flex-direction:column}
  .dt-arrow{transform:rotate(90deg);justify-content:center;padding:8px 0}
  footer{flex-direction:column;gap:8px;text-align:center;padding:24px 20px}
}