:root{
  --bg:#0a0e1a;--bg2:#11172a;--accent:#6ee7ff;--accent2:#a78bfa;--accent3:#f472b6;
  --text:#e6edf7;--muted:#94a3b8;--card:#151c33;--border:#24304d;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;overflow-x:hidden}

.ai-strip{
  font-family:'Courier New',monospace;font-size:.75rem;letter-spacing:3px;
  color:var(--border);white-space:nowrap;overflow:hidden;padding:10px 0;user-select:none;text-align:center;
}
.ai-strip span{color:var(--accent);opacity:.5}

/* NAV */
nav.topnav{
  position:sticky;top:0;z-index:100;
  background:rgba(10,14,26,.9);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  padding:14px 20px;
  display:flex;gap:6px;align-items:center;flex-wrap:wrap;
}
nav.topnav .brand{
  color:var(--text);font-weight:800;font-size:.95rem;text-decoration:none;
  margin-right:16px;white-space:nowrap;
}
nav.topnav .brand span{color:var(--accent)}
nav.topnav a.navlink{
  color:var(--muted);text-decoration:none;
  padding:7px 13px;border-radius:20px;
  font-size:.82rem;white-space:nowrap;
  transition:all .2s;border:1px solid transparent;
}
nav.topnav a.navlink:hover{color:var(--accent);border-color:var(--border)}
nav.topnav a.navlink.current{color:var(--accent);border-color:var(--accent)}

/* MÓDULO TRILHA — sequência pedagógica real, por isso numerada */
.trail{
  max-width:900px;margin:30px auto 10px;padding:0 20px;
  display:flex;gap:8px;flex-wrap:wrap;justify-content:center;
}
.trail a{
  width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:.75rem;font-weight:700;text-decoration:none;
  background:var(--card);border:1px solid var(--border);color:var(--muted);
}
.trail a.current{background:linear-gradient(90deg,var(--accent),var(--accent2));color:#0a0e1a;border:none}
.trail a:hover{border-color:var(--accent)}


/* PAGE PAGINATION (prev/next module) */
.pager{display:flex;justify-content:space-between;margin-top:50px;gap:16px;flex-wrap:wrap}
.pager a{
  flex:1;min-width:220px;padding:16px 20px;border-radius:12px;
  background:var(--card);border:1px solid var(--border);text-decoration:none;
  color:var(--text);transition:border-color .2s;
}
.pager a:hover{border-color:var(--accent)}
.pager a .dir{color:var(--muted);font-size:.75rem;text-transform:uppercase;letter-spacing:1px;display:block;margin-bottom:4px}
.pager a.next{text-align:right}

/* AUTHOR BOX */
.author-box{
  max-width:700px;margin:50px auto 0;text-align:center;
}
.author-box .card{margin:0}

footer{
  text-align:center;padding:40px 20px;
  border-top:1px solid var(--border);
  color:var(--muted);font-size:.9rem;
  background:var(--bg2);margin-top:40px;
}
footer p.small{font-size:.78rem;max-width:600px;margin:14px auto 0}
.footer-legal{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:12px}
.footer-legal a{color:var(--accent);text-decoration:none;font-size:.88rem;font-weight:600}
.footer-legal a:hover{text-decoration:underline}

.legal-page ul.legal-list{margin:12px 0 0 20px;color:var(--muted)}
.legal-page ul.legal-list li{margin-bottom:8px}

.neural-viz-wrap{
  margin:24px 0 32px;padding:20px;border-radius:16px;
  background:var(--card);border:1px solid var(--border);
}
.neural-viz-wrap canvas{
  display:block;width:100%;height:auto;border-radius:12px;
  background:var(--bg2);
}
.neural-viz-caption{
  margin-top:14px;color:var(--muted);font-size:.88rem;line-height:1.55;
}
.neural-viz-caption strong{color:var(--accent2)}


/* AUTHOR BOX */
.author-box{
  max-width:700px;margin:50px auto 0;text-align:center;
}
.author-box .card{margin:0}

footer{
  text-align:center;padding:40px 20px;
  border-top:1px solid var(--border);
  color:var(--muted);font-size:.9rem;
  background:var(--bg2);margin-top:40px;
}
footer p.small{font-size:.78rem;max-width:600px;margin:14px auto 0}
.footer-legal{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:12px}
.footer-legal a{color:var(--accent);text-decoration:none;font-size:.88rem;font-weight:600}
.footer-legal a:hover{text-decoration:underline}

.legal-page ul.legal-list{margin:12px 0 0 20px;color:var(--muted)}
.legal-page ul.legal-list li{margin-bottom:8px}

.neural-viz-wrap{
  margin:24px 0 32px;padding:20px;border-radius:16px;
  background:var(--card);border:1px solid var(--border);
}
.neural-viz-wrap canvas{
  display:block;width:100%;height:auto;border-radius:12px;
  background:var(--bg2);
}
.neural-viz-caption{
  margin-top:14px;color:var(--muted);font-size:.88rem;line-height:1.55;
}
.neural-viz-caption strong{color:var(--accent2)}



.hero{
  min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;
  text-align:center;padding:2rem;
  background:radial-gradient(circle at 20% 30%, rgba(110,231,255,.15), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(167,139,250,.15), transparent 50%),
    linear-gradient(180deg,#0a0e1a 0%,#0f1528 100%);
}
.hero.hero-compact{min-height:38vh;padding:2.2rem 2rem 1.4rem}
.hero .eyebrow{color:var(--accent);font-size:.8rem;letter-spacing:3px;text-transform:uppercase;margin-bottom:14px;font-weight:600}
.hero h1{
  font-size:clamp(2.2rem,6vw,4.5rem);
  background:linear-gradient(90deg,var(--accent),var(--accent2),var(--accent3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:1rem;font-weight:800;letter-spacing:-1px;
}
.hero.hero-compact h1{font-size:clamp(1.6rem,4vw,2.6rem)}
.hero p{max-width:780px;font-size:1.15rem;color:var(--muted);margin-bottom:2rem}
.hero.hero-compact p{margin-bottom:0;font-size:1.05rem}
.hero .cta{
  padding:14px 32px;border-radius:50px;background:linear-gradient(90deg,var(--accent),var(--accent2));
  color:#0a0e1a;font-weight:700;text-decoration:none;box-shadow:0 10px 30px rgba(110,231,255,.3);transition:transform .2s;
}
.hero .cta:hover{transform:translateY(-3px)}
.hero .cta-group{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.hero .cta-secondary{
  padding:14px 32px;border-radius:50px;background:transparent;color:var(--accent);
  font-weight:700;text-decoration:none;border:2px solid var(--accent);transition:transform .2s,background .2s;
}
.hero .cta-secondary:hover{transform:translateY(-3px);background:rgba(110,231,255,.1)}

main{max-width:1100px;margin:0 auto;padding:20px 24px 60px}
main.page-narrow{max-width:900px}
main h2{
  font-size:2rem;margin:10px 0 16px;
  background:linear-gradient(90deg,var(--accent),var(--accent3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
main .block-section{margin-bottom:40px}
main .intro{color:var(--muted);margin-bottom:20px}
p.muted,.muted{color:var(--muted)}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:16px;
  padding:24px;transition:transform .3s,box-shadow .3s,border-color .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 15px 40px rgba(110,231,255,.1);border-color:var(--accent)}
.card h4{color:var(--accent);margin-bottom:10px;font-size:1.05rem}
.card p{color:var(--muted);font-size:.92rem}
.card.done{border-color:var(--accent2)}
.card .module-status{font-size:.75rem;color:var(--accent2);margin-top:8px;font-weight:600}

pre.code, .code-block{
  background:var(--bg2);border:1px solid var(--border);border-radius:12px;
  padding:16px 20px;margin:16px 0;overflow-x:auto;
  font-family:'Courier New',Consolas,monospace;font-size:.88rem;line-height:1.5;color:var(--accent);
}
pre.code .comment{color:var(--muted)}
.ia-tip{
  background:rgba(167,139,250,.08);border:1px solid rgba(167,139,250,.3);
  border-radius:12px;padding:16px 20px;margin-top:24px;
}
.ia-tip h4{color:var(--accent2);font-size:.9rem;margin-bottom:8px}
.ia-tip p{color:var(--muted);font-size:.9rem;margin:0}

.resource-table{width:100%;border-collapse:collapse;margin-top:16px;font-size:.9rem}
.resource-table th,.resource-table td{
  padding:12px 14px;text-align:left;border-bottom:1px solid var(--border);
}
.resource-table th{color:var(--accent);font-size:.8rem;text-transform:uppercase;letter-spacing:.5px}
.resource-table td{color:var(--muted)}
.resource-table a{color:var(--text);text-decoration:none;font-weight:600}
.resource-table a:hover{color:var(--accent)}
.resource-table tr:hover td{background:rgba(110,231,255,.04)}

nav.topnav a.navlink-back{color:var(--accent3);border-color:rgba(244,114,182,.3)}
nav.topnav a.navlink-back:hover{border-color:var(--accent3)}


  :root{
    --bg:#0a0e1a;
    --bg2:#11172a;
    --accent:#6ee7ff;
    --accent2:#a78bfa;
    --accent3:#f472b6;
    --text:#e6edf7;
    --muted:#94a3b8;
    --card:#151c33;
    --border:#24304d;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:'Segoe UI',system-ui,-apple-system,sans-serif;
    background:var(--bg);
    color:var(--text);
    line-height:1.65;
    overflow-x:hidden;
  }

  .hero{
    min-height:100vh;
    display:flex;flex-direction:column;justify-content:center;align-items:center;
    text-align:center;padding:2rem;
    background:
      radial-gradient(circle at 20% 30%, rgba(110,231,255,.15), transparent 50%),
      radial-gradient(circle at 80% 70%, rgba(167,139,250,.15), transparent 50%),
      linear-gradient(180deg,#0a0e1a 0%,#0f1528 100%);
    position:relative;
  }
  .hero h1{
    font-size:clamp(2.2rem,6vw,4.5rem);
    background:linear-gradient(90deg,var(--accent),var(--accent2),var(--accent3));
    -webkit-background-clip:text;background-clip:text;color:transparent;
    margin-bottom:1rem;font-weight:800;letter-spacing:-1px;
  }
  .hero p{max-width:780px;font-size:1.15rem;color:var(--muted);margin-bottom:2rem}
  .hero .cta{
    padding:14px 32px;border-radius:50px;
    background:linear-gradient(90deg,var(--accent),var(--accent2));
    color:#0a0e1a;font-weight:700;text-decoration:none;
    box-shadow:0 10px 30px rgba(110,231,255,.3);
    transition:transform .2s;
  }
  .hero .cta:hover{transform:translateY(-3px)}
  .hero .cta-group{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
  .hero .cta-secondary{
    padding:14px 32px;border-radius:50px;
    background:transparent;color:var(--accent);
    font-weight:700;text-decoration:none;
    border:2px solid var(--accent);
    transition:transform .2s,background .2s;
  }
  .hero .cta-secondary:hover{transform:translateY(-3px);background:rgba(110,231,255,.1)}
  .scroll-ind{
    position:absolute;bottom:30px;
    color:var(--muted);font-size:.85rem;
    animation:bounce 2s infinite;
  }
  @keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}


  nav.old{
    position:sticky;top:0;z-index:100;
    background:rgba(10,14,26,.85);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--border);
    padding:12px 20px;
    display:flex;gap:8px;overflow-x:auto;
    scrollbar-width:thin;
  }
  nav a{
    color:var(--muted);text-decoration:none;
    padding:8px 16px;border-radius:20px;
    font-size:.85rem;white-space:nowrap;
    transition:all .2s;border:1px solid transparent;
  }
  nav a:hover{color:var(--accent);border-color:var(--border)}

  /* TIMELINE */
  .timeline{
    position:relative;
    max-width:1200px;margin:0 auto;padding:60px 20px;
  }
  .timeline::before{
    content:'';position:absolute;left:50%;top:0;bottom:0;
    width:3px;
    background:linear-gradient(180deg,var(--accent),var(--accent2),var(--accent3));
    transform:translateX(-50%);
    border-radius:3px;
  }
  .era{
    position:relative;width:50%;padding:30px 50px;
  }
  .era:nth-child(odd){left:0;text-align:right}
  .era:nth-child(even){left:50%}
  .era::before{
    content:'';position:absolute;top:40px;
    width:20px;height:20px;border-radius:50%;
    background:var(--accent);
    box-shadow:0 0 0 6px rgba(110,231,255,.2),0 0 20px var(--accent);
  }
  .era:nth-child(odd)::before{right:-10px}
  .era:nth-child(even)::before{left:-10px}
  .era-card{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:16px;padding:24px;
    text-align:left;
    transition:transform .3s,box-shadow .3s;
  }
  .era-card:hover{
    transform:translateY(-4px);
    box-shadow:0 15px 40px rgba(110,231,255,.1);
    border-color:var(--accent);
  }
  .era-year{
    display:inline-block;
    padding:4px 12px;border-radius:20px;
    background:linear-gradient(90deg,var(--accent),var(--accent2));
    color:#0a0e1a;font-weight:700;font-size:.8rem;
    margin-bottom:12px;
  }
  .era-card h3{
    font-size:1.5rem;margin-bottom:10px;
    background:linear-gradient(90deg,var(--accent),var(--accent2));
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .era-card p{color:var(--muted);font-size:.95rem;margin-bottom:10px}
  .era-card ul{list-style:none;padding:0}
  .era-card li{
    padding:8px 0;border-bottom:1px dashed var(--border);
    font-size:.9rem;
  }
  .era-card li:last-child{border:none}
  .era-card li strong{color:var(--accent)}
  .era-card .math{
    background:rgba(110,231,255,.08);
    border-left:3px solid var(--accent);
    padding:10px 14px;border-radius:6px;
    font-family:'Courier New',monospace;font-size:.9rem;
    margin:10px 0;color:var(--accent);
  }

  /* BENCHMARK TABLE */
  .bench-wrap{overflow-x:auto;margin-top:20px}
  table{
    width:100%;border-collapse:collapse;
    background:var(--card);border-radius:12px;overflow:hidden;
    border:1px solid var(--border);
  }
  th,td{padding:14px 16px;text-align:left;font-size:.9rem}
  th{
    background:linear-gradient(90deg,rgba(110,231,255,.15),rgba(167,139,250,.15));
    color:var(--accent);font-weight:700;
    border-bottom:2px solid var(--border);
  }
  td{border-bottom:1px solid var(--border);color:var(--text)}
  tr:last-child td{border:none}
  tr:hover td{background:rgba(110,231,255,.04)}
  .score{
    display:inline-block;padding:3px 10px;border-radius:12px;
    background:rgba(110,231,255,.15);color:var(--accent);font-weight:600;
  }
  .score.na{
    background:rgba(148,163,184,.12);color:var(--muted);font-weight:500;
  }

  /* QUANTIZATION */
  .quant-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-top:20px}
  .quant{
    background:var(--card);border:1px solid var(--border);
    border-radius:12px;padding:18px;text-align:center;
  }
  .quant .num{
    font-size:2rem;font-weight:800;
    background:linear-gradient(90deg,var(--accent),var(--accent2));
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .quant .name{color:var(--accent);font-weight:600;margin:6px 0}
  .quant .desc{color:var(--muted);font-size:.85rem}

  /* HARDWARE */
  .hw-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-top:20px}
  .hw{
    background:var(--card);border:1px solid var(--border);
    border-radius:14px;padding:24px;text-align:center;
    position:relative;overflow:hidden;
  }
  .hw::before{
    content:'';position:absolute;top:-50%;right:-50%;
    width:200px;height:200px;border-radius:50%;
    background:radial-gradient(circle,rgba(110,231,255,.2),transparent 70%);
  }
  .hw .icon{font-size:3rem;margin-bottom:10px;position:relative}
  .hw h4{color:var(--accent);margin-bottom:10px;position:relative}
  .hw p{color:var(--muted);font-size:.9rem;position:relative}

  /* COMPARADOR */
  .comp-buttons{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}
  .comp-btn{
    padding:14px 24px;border-radius:12px;
    background:var(--card);border:1px solid var(--border);
    color:var(--text);font-size:.95rem;font-weight:600;
    cursor:pointer;transition:all .2s;
  }
  .comp-btn:hover{border-color:var(--accent);color:var(--accent)}
  .comp-btn.active{
    background:linear-gradient(90deg,var(--accent),var(--accent2));
    color:#0a0e1a;border-color:transparent;
  }
  .comp-result{
    background:var(--card);border:1px solid var(--border);
    border-left:3px solid var(--accent);
    border-radius:12px;padding:24px;margin-top:16px;
    display:none;
  }
  .comp-result.show{display:block}
  .comp-result h4{color:var(--accent);margin-bottom:10px;font-size:1.2rem}
  .comp-result p{color:var(--muted);font-size:.92rem}

  /* QUIZ */
  .quiz-box{
    background:var(--card);border:1px solid var(--border);
    border-radius:16px;padding:30px;margin-top:20px;
  }
  .quiz-question{display:none}
  .quiz-question.active{display:block}
  .quiz-question h4{color:var(--text);font-size:1.15rem;margin-bottom:16px}
  .quiz-options{display:flex;flex-direction:column;gap:10px}
  .quiz-opt{
    text-align:left;padding:12px 18px;border-radius:10px;
    background:var(--bg2);border:1px solid var(--border);
    color:var(--text);cursor:pointer;font-size:.9rem;
    transition:all .2s;
  }
  .quiz-opt:hover{border-color:var(--accent2)}
  .quiz-opt.selected{border-color:var(--accent);background:rgba(110,231,255,.1)}
  .quiz-progress{
    display:flex;gap:6px;margin-bottom:24px;
  }
  .quiz-dot{width:100%;height:4px;border-radius:2px;background:var(--border)}
  .quiz-dot.done{background:var(--accent)}
  .quiz-nav{display:flex;justify-content:space-between;margin-top:24px}
  .quiz-nav button{
    padding:10px 22px;border-radius:20px;border:1px solid var(--border);
    background:transparent;color:var(--muted);cursor:pointer;font-size:.85rem;
  }
  .quiz-nav button.primary{
    background:linear-gradient(90deg,var(--accent),var(--accent2));
    color:#0a0e1a;border:none;font-weight:600;
  }
  .quiz-nav button:disabled{opacity:.4;cursor:not-allowed}
  .quiz-result{display:none;text-align:center}
  .quiz-result.show{display:block}
  .quiz-result .level{
    font-size:1.8rem;font-weight:800;margin:14px 0 6px;
    background:linear-gradient(90deg,var(--accent),var(--accent2));
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .quiz-phase-label{
    display:inline-block;padding:4px 12px;border-radius:20px;
    background:rgba(167,139,250,.15);color:var(--accent2);
    font-size:.75rem;font-weight:600;margin-bottom:16px;
  }
  .trilha-result{text-align:left;max-width:640px;margin:0 auto}
  .trilha-badge{
    display:inline-block;padding:8px 20px;border-radius:30px;
    background:linear-gradient(90deg,var(--accent),var(--accent2));
    color:#0a0e1a;font-weight:700;font-size:1.1rem;margin-bottom:16px;
  }
  .trilha-desc{color:var(--muted);font-size:.95rem;margin-bottom:20px;line-height:1.6}
  .trilha-section{margin-bottom:20px}
  .trilha-section h5{color:var(--accent);font-size:.9rem;margin-bottom:10px;text-transform:uppercase;letter-spacing:.5px}
  .trilha-links{display:flex;flex-direction:column;gap:8px}
  .trilha-links a{
    display:block;padding:12px 16px;border-radius:10px;
    background:var(--bg2);border:1px solid var(--border);
    color:var(--text);text-decoration:none;font-size:.9rem;
    transition:border-color .2s,background .2s;
  }
  .trilha-links a:hover{border-color:var(--accent);background:rgba(110,231,255,.06)}
  .trilha-links a.external::after{content:' ↗';color:var(--muted);font-size:.8rem}
  .trilha-score{
    background:var(--bg2);border-radius:10px;padding:14px 18px;
    margin-bottom:20px;border:1px solid var(--border);
  }
  .trilha-score-bar{
    height:6px;border-radius:3px;background:var(--border);
    margin-top:8px;overflow:hidden;
  }
  .trilha-score-fill{
    height:100%;border-radius:3px;
    background:linear-gradient(90deg,var(--accent),var(--accent2));
    transition:width .6s ease;
  }
  .trilha-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:24px}
  .trilha-interest{
    font-size:.85rem;color:var(--accent3);margin-top:12px;font-style:italic;
  }
  .ad-slot{
    max-width:1100px;margin:30px auto;padding:20px;
    min-height:90px;border:1px dashed var(--border);
    border-radius:12px;text-align:center;
    color:var(--muted);font-size:.75rem;
    display:flex;align-items:center;justify-content:center;
    background:rgba(21,28,51,.3);
  }
  .card-link{
    display:inline-block;margin-top:10px;color:var(--accent2);
    font-size:.85rem;text-decoration:none;font-weight:600;
  }
  .card-link:hover{color:var(--accent)}

  footer{
    text-align:center;padding:40px 20px;
    border-top:1px solid var(--border);
    color:var(--muted);font-size:.9rem;
    background:var(--bg2);
  }

  /* RESPONSIVE */
  @media(max-width:768px){
    .timeline::before{left:20px}
    .era{width:100%;left:0!important;padding:20px 20px 20px 50px;text-align:left!important}
    .era::before{left:10px!important;right:auto!important}
    .hero h1{font-size:2.2rem}
  }


@media(max-width:768px){nav.topnav{overflow-x:auto}}