/* ============================================================
   NEXO Academy — Artigo da Semana · Design System v2 (premium)
   Paleta oficial: navy #1A2535 · cyan #00D4E8 · red #E22030
   ============================================================ */
:root{
  --navy:#1A2535;
  --navy-deep:#10161F;
  --navy-2:#232F42;
  --cyan:#00D4E8;
  --cyan-dim:#0A7F8E;
  --red:#E22030;
  --off:#FAFAF8;
  --paper:#FFFFFF;
  --ink:#2B333D;
  --ink-soft:#5A6472;
  --gray:#9AA3AE;
  --line:#E9E9E5;
  --tint-cyan:#EDF8FA;
  --tint-red:#FDF2F2;
  --shadow-lg:0 24px 60px -18px rgba(16,22,31,.22);
  --shadow-sm:0 2px 10px rgba(16,22,31,.06);
  --ease:cubic-bezier(.22,1,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
::selection{background:rgba(0,212,232,.25)}
body{
  font-family:'Montserrat',-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--off);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit}
img{max-width:100%}

.wrap{max-width:1120px;margin:0 auto;padding:0 28px}

/* ---------- kickers / labels ---------- */
.kicker{
  font-size:.68rem;font-weight:800;letter-spacing:.32em;text-transform:uppercase;
  color:var(--cyan-dim);display:flex;align-items:center;gap:16px;
}
.kicker::before{content:"";width:34px;height:2px;background:var(--cyan);flex:none}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(16,22,31,.82);
  backdrop-filter:blur(14px) saturate(1.4);
  -webkit-backdrop-filter:blur(14px) saturate(1.4);
  border-bottom:1px solid rgba(0,212,232,.18);
}
.header-inner{
  max-width:1120px;margin:0 auto;padding:16px 28px;
  display:flex;align-items:center;gap:16px;
}
.brand{display:flex;align-items:center;gap:13px;text-decoration:none}
.brand img{height:34px;width:auto;display:block;filter:drop-shadow(0 0 10px rgba(0,212,232,.45))}
.brand-name{color:#fff;font-weight:800;font-size:.98rem;letter-spacing:.18em}
.brand-name span{color:var(--cyan)}
.brand-tag{
  display:none;color:#7d8798;font-size:.66rem;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;border-left:1px solid rgba(255,255,255,.14);
  padding-left:14px;margin-left:2px;
}
@media(min-width:760px){.brand-tag{display:block}}
.nav{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
.nav a{
  color:#c9d1dc;text-decoration:none;font-size:.74rem;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;
  padding:8px 14px;border-radius:8px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav a:hover{color:var(--cyan);background:rgba(0,212,232,.08)}
.nav a.nav-cta{
  color:var(--navy-deep);background:var(--cyan);
  box-shadow:0 0 18px rgba(0,212,232,.35);
}
.nav a.nav-cta:hover{background:#3FE0F0;color:var(--navy-deep)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(1100px 520px at 78% -10%, rgba(0,212,232,.16), transparent 60%),
    radial-gradient(800px 480px at 8% 110%, rgba(0,212,232,.08), transparent 55%),
    linear-gradient(165deg,var(--navy-deep) 0%,var(--navy) 58%,#141D2A 100%);
  padding:110px 28px 130px;
}
.hero::before{ /* grade sutil de papel de ECG */
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:
    linear-gradient(rgba(0,212,232,.9) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,232,.9) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(900px 600px at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image:radial-gradient(900px 600px at 50% 30%, #000 30%, transparent 75%);
}
.hero-inner{max-width:880px;margin:0 auto;text-align:center;position:relative;z-index:2}
.hero .badge{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.68rem;font-weight:800;letter-spacing:.3em;text-transform:uppercase;color:var(--cyan);
  border:1px solid rgba(0,212,232,.35);background:rgba(0,212,232,.06);
  border-radius:999px;padding:9px 22px;margin-bottom:34px;
  box-shadow:inset 0 0 24px rgba(0,212,232,.06);
}
.hero .badge::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 10px var(--cyan);animation:pulse 2.2s infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
.hero h1{
  font-size:clamp(2.1rem,5.2vw,3.7rem);font-weight:800;line-height:1.12;
  letter-spacing:-.022em;text-wrap:balance;
}
.hero h1 em{
  font-style:normal;color:var(--cyan);
  text-shadow:0 0 34px rgba(0,212,232,.45);
}
.hero p.sub{
  margin:28px auto 0;max-width:620px;color:#AEB8C6;
  font-size:1.05rem;font-weight:500;line-height:1.8;text-wrap:pretty;
}
.hero-cta{margin-top:40px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{
  display:inline-block;text-decoration:none;font-weight:800;font-size:.78rem;
  letter-spacing:.14em;text-transform:uppercase;border-radius:10px;
  padding:15px 30px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s;
}
.btn-cyan{
  color:var(--navy-deep);background:var(--cyan);
  box-shadow:0 10px 34px -8px rgba(0,212,232,.55);
}
.btn-cyan:hover{transform:translateY(-2px);box-shadow:0 16px 44px -8px rgba(0,212,232,.65)}
.btn-ghost{color:#DCE3EC;border:1px solid rgba(255,255,255,.22)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
/* ---------- sections ---------- */
.section{padding:96px 0}
.section-head{margin-bottom:48px}
.section-head h2{
  margin-top:18px;color:var(--navy);font-size:clamp(1.5rem,3vw,2.1rem);
  font-weight:800;letter-spacing:-.015em;line-height:1.25;max-width:640px;text-wrap:balance;
}
.section-head p{margin-top:14px;color:var(--ink-soft);max-width:560px;font-size:.98rem}

/* ---------- article card ---------- */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:30px}
.article-card{
  position:relative;background:var(--paper);border:1px solid var(--line);
  border-radius:20px;overflow:hidden;text-decoration:none;
  display:flex;flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s;
}
.article-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-lg);border-color:rgba(0,212,232,.45)}
.card-band{
  position:relative;color:#fff;padding:30px 30px 26px;
  background:
    radial-gradient(420px 200px at 90% -30%, rgba(0,212,232,.22), transparent 60%),
    linear-gradient(150deg,var(--navy-2),var(--navy-deep));
}
.card-band::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--cyan),rgba(0,212,232,.05));
}
.card-band .journal{
  font-size:.64rem;font-weight:800;letter-spacing:.24em;text-transform:uppercase;color:var(--cyan);
}
.card-band h3{font-size:1.22rem;font-weight:800;line-height:1.38;margin-top:12px;letter-spacing:-.01em;text-wrap:balance}
.card-body{padding:26px 30px 28px;display:flex;flex-direction:column;gap:18px;flex:1}
.card-body p{font-size:.92rem;color:var(--ink-soft);line-height:1.75}
.card-meta{display:flex;gap:8px;flex-wrap:wrap}
.tag{
  font-size:.62rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  padding:6px 13px;border-radius:999px;border:1px solid transparent;
}
.tag-cyan{background:var(--tint-cyan);color:var(--cyan-dim);border-color:rgba(0,180,200,.25)}
.tag-navy{background:var(--navy);color:#fff}
.tag-red{background:var(--tint-red);color:var(--red);border-color:rgba(226,32,48,.2)}
.read-more{
  margin-top:auto;display:flex;align-items:center;gap:10px;
  font-size:.74rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--navy);
}
.read-more .arrow{
  color:var(--cyan);font-size:1rem;transition:transform .3s var(--ease);
}
.article-card:hover .arrow{transform:translateX(6px)}

.roadmap-note{
  margin-top:44px;display:flex;gap:16px;align-items:center;
  border:1px dashed rgba(0,180,200,.4);border-radius:14px;
  background:linear-gradient(90deg,rgba(0,212,232,.05),transparent);
  padding:20px 26px;font-size:.88rem;color:var(--ink-soft);
}
.roadmap-note strong{color:var(--navy)}

/* ---------- methodology ---------- */
.method{
  position:relative;color:#fff;
  background:
    radial-gradient(900px 400px at 15% 0%, rgba(0,212,232,.1), transparent 55%),
    linear-gradient(160deg,var(--navy) 0%,var(--navy-deep) 100%);
}
.method .section-head h2{color:#fff}
.method .section-head p{color:#A9B3C1}
.method .kicker{color:var(--cyan)}
.method-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px;counter-reset:mstep}
.method-item{
  position:relative;counter-increment:mstep;
  background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.08);
  border-radius:16px;padding:30px 28px 26px;
  transition:border-color .3s,background .3s,transform .3s var(--ease);
}
.method-item:hover{border-color:rgba(0,212,232,.4);background:rgba(0,212,232,.05);transform:translateY(-4px)}
.method-item::before{
  content:"0" counter(mstep);
  font-size:.72rem;font-weight:800;letter-spacing:.2em;color:var(--cyan);
  display:block;margin-bottom:16px;
}
.method-item.red::before{color:var(--red)}
.method-item h4{color:#fff;font-size:1rem;font-weight:800;margin-bottom:12px;letter-spacing:-.01em}
.method-item p{font-size:.86rem;color:#A9B3C1;line-height:1.75}

/* ---------- about strip ---------- */
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:center}
@media(max-width:860px){.about-grid{grid-template-columns:1fr}}
.about-grid p{color:var(--ink-soft);font-size:1rem;line-height:1.85;margin-top:18px}
.about-grid p strong{color:var(--navy)}
.motto{
  border-left:3px solid var(--cyan);padding:8px 0 8px 26px;
  font-size:1.3rem;font-weight:800;color:var(--navy);line-height:1.5;letter-spacing:-.01em;
}
.motto span{color:var(--cyan)}

/* ============================================================
   ARTICLE PAGE
   ============================================================ */
.progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:200;
  background:linear-gradient(90deg,var(--cyan),#3FE0F0);
  box-shadow:0 0 12px rgba(0,212,232,.7);
}
.article-hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(900px 420px at 85% -20%, rgba(0,212,232,.15), transparent 60%),
    linear-gradient(160deg,var(--navy-deep),var(--navy) 70%);
  padding:78px 28px 66px;
}
.article-hero::before{
  content:"";position:absolute;inset:0;opacity:.045;pointer-events:none;
  background-image:
    linear-gradient(rgba(0,212,232,.9) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,232,.9) 1px, transparent 1px);
  background-size:44px 44px;
}
.article-hero .inner{max-width:820px;margin:0 auto;position:relative;z-index:2}
.crumb{
  display:flex;gap:10px;align-items:center;flex-wrap:wrap;
  font-size:.66rem;font-weight:800;letter-spacing:.24em;text-transform:uppercase;color:var(--cyan);
  margin-bottom:30px;
}
.crumb a{color:#8fa0b5;text-decoration:none;transition:color .2s}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{color:#4a5668}
.article-hero h1{
  font-size:clamp(1.7rem,4vw,2.75rem);font-weight:800;line-height:1.18;
  letter-spacing:-.02em;text-wrap:balance;
}
.article-hero .meta{
  display:flex;gap:0;flex-wrap:wrap;align-items:center;
  margin-top:30px;font-size:.76rem;font-weight:600;color:#96A2B2;
}
.article-hero .meta span{display:flex;align-items:center}
.article-hero .meta span+span::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--cyan);margin:0 14px;opacity:.7}

/* prosa editorial — serifa premium */
article.post{max-width:760px;margin:0 auto;padding:64px 28px 30px}
article.post p, article.post li, article.post dd{
  font-family:'Source Serif 4',Georgia,'Times New Roman',serif;
  font-size:1.12rem;line-height:1.9;color:var(--ink);
}
article.post p{margin-bottom:24px;text-wrap:pretty}
article.post strong{font-weight:600;color:var(--navy)}
article.post ul{margin:0 0 24px 4px;list-style:none}
article.post li{margin-bottom:14px;padding-left:30px;position:relative}
article.post li::before{
  content:"";position:absolute;left:2px;top:.72em;width:9px;height:9px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 0 3px var(--tint-cyan);
}
.lead{
  font-size:1.24rem !important;line-height:1.85 !important;color:var(--ink-soft) !important;
}
.lead::first-letter{
  font-size:3.4em;font-weight:600;color:var(--navy);float:left;
  line-height:.82;padding:6px 12px 0 0;
}
article.post h2{
  font-family:'Montserrat',sans-serif;
  color:var(--navy);font-size:1.06rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;
  margin:66px 0 26px;padding-top:30px;border-top:1px solid var(--line);
  display:flex;align-items:baseline;gap:16px;
}
article.post h2 .num{
  font-size:.72rem;color:var(--cyan-dim);letter-spacing:.1em;font-weight:800;
}
article.post h2.h-red .num{color:var(--red)}

/* stat strip */
.stat-strip{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));
  gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;margin:36px 0;
  box-shadow:var(--shadow-sm);
}
.stat{background:var(--paper);padding:26px 22px;text-align:center}
.stat .v{
  font-family:'Montserrat',sans-serif;font-size:1.7rem;font-weight:800;color:var(--navy);
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;
}
.stat .v em{font-style:normal;color:var(--cyan-dim)}
.stat .l{
  margin-top:8px;font-family:'Montserrat',sans-serif;
  font-size:.64rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gray);
}

/* boxes */
.box{border-radius:18px;padding:34px 38px;margin:38px 0}
.box .box-label{
  font-family:'Montserrat',sans-serif;
  font-size:.64rem;font-weight:800;letter-spacing:.3em;text-transform:uppercase;
  margin-bottom:16px;display:flex;align-items:center;gap:14px;
}
.box .box-label::before{content:"";width:26px;height:2px;background:currentColor;opacity:.6}
.box p{margin-bottom:0 !important}
.box-bottomline{
  position:relative;color:#fff;overflow:hidden;
  background:
    radial-gradient(480px 240px at 92% -30%, rgba(0,212,232,.22), transparent 60%),
    linear-gradient(150deg,var(--navy-2),var(--navy-deep));
  box-shadow:var(--shadow-lg);
}
.box-bottomline::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--cyan),rgba(0,212,232,.15));
}
.box-bottomline .box-label{color:var(--cyan)}
.box-bottomline p,
article.post .box-bottomline p{color:#E2E8F0}
.box-bottomline strong,
article.post .box-bottomline strong{color:var(--cyan);font-weight:600}
.box-insight{
  background:linear-gradient(150deg,#F2FBFC,var(--tint-cyan));
  border:1px solid rgba(0,180,200,.3);
}
.box-insight .box-label{color:var(--cyan-dim)}
.box-alert{background:var(--tint-red);border:1px solid rgba(226,32,48,.22)}
.box-alert .box-label{color:var(--red)}

/* ficha do estudo */
.study-id{
  background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--cyan);
  border-radius:16px;padding:34px 38px;margin:34px 0;box-shadow:var(--shadow-sm);
}
.study-id dt{
  font-family:'Montserrat',sans-serif;
  font-weight:800;color:var(--cyan-dim);font-size:.64rem;letter-spacing:.24em;
  text-transform:uppercase;margin-top:22px;
}
.study-id dt:first-child{margin-top:0}
.study-id dd{margin:8px 0 0;font-size:1.02rem;line-height:1.8}

/* tabela */
.tbl-wrap{overflow-x:auto;margin:34px 0;border-radius:16px;box-shadow:var(--shadow-sm);border:1px solid var(--line)}
table.results{width:100%;border-collapse:collapse;background:var(--paper);font-size:.94rem;min-width:640px}
table.results th{
  background:linear-gradient(150deg,var(--navy-2),var(--navy-deep));color:#fff;text-align:left;
  padding:16px 20px;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;font-weight:800;
}
table.results th:first-child{border-left:3px solid var(--cyan)}
table.results td{
  padding:18px 20px;border-top:1px solid var(--line);
  font-family:'Source Serif 4',Georgia,serif;font-size:1rem;line-height:1.6;vertical-align:top;
}
table.results td.num{
  font-family:'Montserrat',sans-serif;font-weight:800;color:var(--navy);
  white-space:nowrap;font-variant-numeric:tabular-nums;
}
table.results tr.hl td{background:var(--tint-cyan)}

/* veredito */
.verdict{
  position:relative;display:flex;gap:26px;align-items:flex-start;
  background:var(--paper);border:1px solid var(--line);
  border-radius:18px;padding:34px 38px;margin:40px 0;
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.verdict::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:5px;
  background:linear-gradient(180deg,#F2C230,rgba(242,194,48,.25));
}
.verdict .light{
  flex:none;width:58px;height:58px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:1.5rem;
  background:var(--off);border:1px solid var(--line);box-shadow:inset 0 2px 6px rgba(16,22,31,.06);
}
.verdict h3{
  font-family:'Montserrat',sans-serif;color:var(--navy);font-size:.7rem;font-weight:800;
  letter-spacing:.26em;text-transform:uppercase;margin-bottom:10px;
}
.verdict p{margin:0 !important}

/* referências */
.refs{background:var(--paper);border-top:1px solid var(--line);padding:64px 28px 40px;margin-top:70px}
.refs .inner{max-width:760px;margin:0 auto}
.refs h2{
  color:var(--navy);font-size:.72rem;font-weight:800;letter-spacing:.3em;text-transform:uppercase;
  margin-bottom:28px;display:flex;align-items:center;gap:16px;
}
.refs h2::after{content:"";flex:1;height:1px;background:var(--line)}
.refs ol{margin-left:22px;font-size:.86rem;color:var(--ink-soft);line-height:1.75}
.refs li{margin-bottom:16px;padding-left:8px}
.refs li::marker{font-weight:800;color:var(--cyan-dim)}
.refs .rtag{
  font-family:'Montserrat',sans-serif;font-weight:800;color:var(--cyan-dim);
  font-size:.62rem;letter-spacing:.1em;background:var(--tint-cyan);
  padding:2px 8px;border-radius:5px;
}
.refs a{color:var(--cyan-dim);text-decoration:none;word-break:break-all;border-bottom:1px solid rgba(0,180,200,.3)}
.refs a:hover{border-bottom-color:var(--cyan-dim)}
.refs .refs-note{font-size:.78rem;color:var(--gray);margin-top:26px;line-height:1.7}

.legal{max-width:760px;margin:0 auto;padding:34px 28px 14px;font-size:.74rem;color:var(--gray);line-height:1.8}
.legal strong{color:var(--ink-soft)}

/* ---------- footer ---------- */
.site-footer{
  position:relative;color:#AEB8C6;margin-top:80px;overflow:hidden;
  background:linear-gradient(165deg,var(--navy) 0%,var(--navy-deep) 100%);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);
}
.footer-inner{
  max-width:1120px;margin:0 auto;padding:64px 28px 48px;
  display:flex;flex-wrap:wrap;gap:40px;align-items:center;
}
.footer-inner img{height:40px;filter:drop-shadow(0 0 12px rgba(0,212,232,.4))}
.footer-inner .ftxt{font-size:.84rem;max-width:460px;line-height:1.8}
.footer-inner .ftxt strong{color:#fff;letter-spacing:.16em;font-size:.9rem}
.footer-links{margin-left:auto;display:flex;gap:12px;flex-wrap:wrap}
.footer-links a{
  color:var(--cyan);text-decoration:none;font-weight:700;font-size:.72rem;
  letter-spacing:.12em;text-transform:uppercase;
  border:1px solid rgba(0,212,232,.3);border-radius:9px;padding:11px 20px;
  transition:background .25s,box-shadow .25s;
}
.footer-links a:hover{background:rgba(0,212,232,.1);box-shadow:0 0 20px rgba(0,212,232,.2)}
.copy{
  border-top:1px solid rgba(255,255,255,.07);text-align:center;
  font-size:.68rem;padding:22px 28px;color:#66707F;letter-spacing:.04em;line-height:1.8;
}

@media (max-width:640px){
  .hero{padding:78px 22px 110px}
  .section{padding:70px 0}
  .box,.study-id,.verdict{padding:26px 24px}
  .footer-links{margin-left:0}
  article.post p, article.post li, article.post dd{font-size:1.05rem}
}