/* =======================================================================
   SCAE Academy — Design System
   Aprender é um Verbo · trilogia + Professor na Encruzilhada Tecnológica
   ======================================================================= */

/* ---------- 1. Tokens ---------- */
:root{
  /* Paper / ink */
  --paper:       #f3ecdf;
  --paper-2:     #ebe2d2;
  --paper-3:     #e2d7c2;
  --ink:         #1a1714;
  --ink-soft:    #4a4239;
  --ink-faint:   #8a7e6f;
  --rule:        #c9bda6;
  --rule-soft:   #d8cdb5;

  /* Acentos por livro */
  --exp:         #b8482e;   /* Vol.01 Experimentar — terracota */
  --exp-deep:    #8a3220;
  --prj:         #1f3a5f;   /* Vol.02 Projetar — azul-noite */
  --prj-deep:    #142944;
  --trf:         #4a6147;   /* Vol.03 Transformar — verde-musgo */
  --trf-deep:    #324530;
  --prf:         #a8581c;   /* Professor — âmbar */
  --prf-deep:    #7e3f12;
  --prf-glow:    #c98744;

  /* Tipografia */
  --serif-display: "Fraunces", "Times New Roman", Times, serif;
  --serif-text:    "Spectral", Georgia, "Times New Roman", serif;
  --mono:          "JetBrains Mono", ui-monospace, SFMono-Regular, Consolas, monospace;

  /* Layout */
  --container:   1100px;
  --container-wide: 1300px;
  --gutter:      40px;

  /* Easing / motion */
  --ease:        cubic-bezier(.2,.7,.2,1);
}

/* ---------- 2. Reset (subtle) ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html,body{margin:0;padding:0}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--serif-text);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;display:block}
button{font:inherit;cursor:pointer}
a{color:inherit}
:focus-visible{outline:2px solid var(--exp);outline-offset:3px;border-radius:2px}

/* ---------- 3. Utilities ---------- */
.container{max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.container-wide{max-width:var(--container-wide);margin:0 auto;padding:0 var(--gutter)}
.section{padding:100px var(--gutter)}
.section-tight{padding:60px var(--gutter)}
.center{text-align:center}
.pre{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--exp);
  margin:0 0 18px;
}
.eyebrow{
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.25em;
  text-transform:uppercase;
  color:var(--ink-faint);
}
.rule{border:0;border-top:1px solid var(--rule);margin:48px auto;max-width:120px}

/* ---------- 4. Topbar ---------- */
.topbar{
  position:sticky;top:0;z-index:100;
  background:rgba(243,236,223,.94);
  backdrop-filter:blur(20px) saturate(140%);
  -webkit-backdrop-filter:blur(20px) saturate(140%);
  border-bottom:1px solid var(--rule);
  padding:16px var(--gutter);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.topbar .brand{
  font-family:var(--serif-display);font-style:italic;font-weight:400;
  font-size:19px;color:var(--ink);text-decoration:none;
}
.topbar .brand small{
  display:block;font-family:var(--mono);font-style:normal;
  font-size:9.5px;letter-spacing:.22em;color:var(--ink-faint);
  text-transform:uppercase;margin-top:3px;font-weight:400;
}
.topbar nav{display:flex;gap:28px}
.topbar nav a{
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--ink-soft);
  text-decoration:none;transition:color .18s var(--ease);
}
.topbar nav a:hover,.topbar nav a:focus-visible{color:var(--exp)}
.topbar .cta{
  background:var(--ink);color:var(--paper);text-decoration:none;
  padding:10px 18px;font-family:var(--mono);font-size:10px;
  letter-spacing:.18em;text-transform:uppercase;border-radius:3px;
  transition:background .18s var(--ease);
}
.topbar .cta:hover{background:var(--exp)}

/* ---------- 5. Hero ---------- */
.hero{
  padding:120px var(--gutter) 80px;
  max-width:var(--container-wide);
  margin:0 auto;
  text-align:center;
  position:relative;
}
.hero h1{
  font-family:var(--serif-display);
  font-weight:300;font-style:italic;
  font-size:clamp(40px,7vw,88px);
  line-height:.96;margin:0 0 28px;
  letter-spacing:-.03em;color:var(--ink);
}
.hero h1 em{font-style:italic;color:var(--exp)}
.hero .lede{
  font-family:var(--serif-text);font-style:italic;
  font-size:clamp(17px,2vw,22px);line-height:1.5;
  color:var(--ink-soft);max-width:760px;margin:0 auto 40px;
}
.hero-ctas{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- 6. Buttons ---------- */
.btn{
  display:inline-block;text-decoration:none;
  padding:16px 32px;
  font-family:var(--mono);font-size:12px;
  letter-spacing:.22em;text-transform:uppercase;
  border-radius:3px;border:1px solid transparent;
  font-weight:500;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-primary{background:var(--exp);color:var(--paper)}
.btn-primary:hover{background:var(--exp-deep)}
.btn-secondary{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-secondary:hover{background:var(--ink);color:var(--paper)}
.btn-amber{background:var(--prf);color:#fff8eb}
.btn-amber:hover{background:var(--prf-deep)}
.btn-amber-outline{background:transparent;color:var(--prf);border:1px solid var(--prf)}
.btn-amber-outline:hover{background:var(--prf);color:#fff8eb}
.btn-small{padding:10px 18px;font-size:10px}
.btn-block{display:block;width:100%;text-align:center}

/* ---------- 7. Book covers (sales page trio) ---------- */
.trio-section{padding:60px var(--gutter) 100px;max-width:var(--container-wide);margin:0 auto}
.trio-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.book-card{display:flex;flex-direction:column;align-items:center}
.book-cover{
  width:100%;max-width:340px;aspect-ratio:16/23;
  position:relative;overflow:hidden;background:var(--paper-2);
  box-shadow:0 30px 60px -20px rgba(0,0,0,.45),0 18px 30px -15px rgba(0,0,0,.3);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.book-cover:hover{
  transform:translateY(-6px);
  box-shadow:0 40px 80px -20px rgba(0,0,0,.55),0 24px 40px -15px rgba(0,0,0,.35);
}
.book-cover img{width:100%;height:100%;object-fit:cover;display:block}

/* CSS-only placeholder cover (Livro 3 sem JPG real)
   Design limpo: gradiente suave + SVG motif por cima, sem retângulos
   ou blend-modes que possam criar áreas claras estranhas. */
.cv-placeholder{
  position:absolute;inset:0;padding:34px 30px;
  display:flex;flex-direction:column;color:var(--paper);
  overflow:hidden;
}
/* Gradientes diagonais suaves para cada volume */
.cv-placeholder.cv-1{background:linear-gradient(155deg,#cb5e3f 0%,#a23e26 55%,#893421 100%)}
.cv-placeholder.cv-2{background:linear-gradient(155deg,#345279 0%,#1e3756 55%,#142847 100%)}
.cv-placeholder.cv-3{background:linear-gradient(155deg,#6a8362 0%,#4a6147 55%,#384b38 100%)}
.cv-placeholder.cv-prf{background:linear-gradient(155deg,#c4742f 0%,#945219 55%,#6e3a0e 100%)}
/* Garante que conteúdo fica sempre por cima do motif */
.cv-placeholder > *{position:relative;z-index:1}
.cv-placeholder .top{
  display:flex;justify-content:space-between;
  font-family:var(--mono);font-size:10px;letter-spacing:.22em;
  text-transform:uppercase;opacity:.85;
}
.cv-placeholder .verb{
  font-family:var(--serif-display);font-weight:300;font-style:italic;
  font-size:62px;line-height:.9;letter-spacing:-.03em;
  margin-top:auto;color:var(--paper);
}
.cv-placeholder .sub{
  font-family:var(--serif-text);font-style:italic;
  font-size:12px;line-height:1.35;margin-top:18px;opacity:.92;
}
.cv-placeholder .signature{
  display:flex;justify-content:space-between;margin-top:14px;
  padding-top:10px;border-top:1px solid rgba(255,236,210,.3);
  align-items:flex-end;
}
.cv-placeholder .authors{
  font-family:var(--mono);font-size:8px;letter-spacing:.2em;
  text-transform:uppercase;opacity:.8;line-height:1.5;
}
.cv-placeholder .num{
  font-family:var(--serif-display);font-style:italic;font-size:14px;opacity:.9;
}
.cv-placeholder .motif{position:absolute;inset:0;pointer-events:none;opacity:.35}

.book-info{margin-top:28px;text-align:center}
.book-info .vol{
  font-family:var(--mono);font-size:10px;letter-spacing:.25em;
  text-transform:uppercase;color:var(--ink-faint);margin-bottom:8px;
}
.book-info h3{
  font-family:var(--serif-display);font-style:italic;font-weight:400;
  font-size:32px;margin:0 0 8px;letter-spacing:-.01em;
}
.book-info[data-c="1"] h3{color:var(--exp)}
.book-info[data-c="2"] h3{color:var(--prj)}
.book-info[data-c="3"] h3{color:var(--trf)}
.book-info[data-c="prf"] h3{color:var(--prf)}
.book-info p.synopsis{
  font-family:var(--serif-text);font-style:italic;
  font-size:14.5px;line-height:1.55;color:var(--ink-soft);
  margin:0 0 14px;max-width:300px;margin-left:auto;margin-right:auto;
}
.book-info .for-whom-mini{
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink-faint);
  margin:0 0 18px;line-height:1.55;
}
.book-info .for-whom-mini b{color:var(--ink-soft);font-weight:500}
.book-info .book-ctas{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.book-info .book-ctas a{
  font-family:var(--mono);font-size:10px;letter-spacing:.18em;
  text-transform:uppercase;text-decoration:none;
  padding:8px 14px;border-radius:3px;transition:all .18s var(--ease);
}
.book-info .book-ctas a.primary{background:var(--ink);color:var(--paper)}
.book-info[data-c="1"] .book-ctas a.primary:hover{background:var(--exp)}
.book-info[data-c="2"] .book-ctas a.primary:hover{background:var(--prj)}
.book-info[data-c="3"] .book-ctas a.primary:hover{background:var(--trf)}
.book-info[data-c="prf"] .book-ctas a.primary:hover{background:var(--prf)}
.book-info .book-ctas a.ghost{
  background:transparent;color:var(--ink);border:1px solid var(--rule);
}
.book-info .book-ctas a.ghost:hover{border-color:var(--ink)}

/* ---------- 8. "What is the trilogy" + featured Professor ---------- */
.what{
  background:var(--paper-2);
  padding:100px var(--gutter);
  border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
}
.what-wrap{max-width:900px;margin:0 auto;text-align:center}
.what h2{
  font-family:var(--serif-display);font-weight:300;font-style:italic;
  font-size:clamp(34px,5vw,56px);line-height:1.05;margin:0 0 32px;
  letter-spacing:-.02em;
}
.what p{
  font-family:var(--serif-text);font-size:18px;line-height:1.7;
  color:var(--ink-soft);margin:0 0 18px;text-align:justify;hyphens:auto;
}
.what blockquote{
  margin:32px 0;padding:24px 32px;border-left:3px solid var(--exp);
  font-family:var(--serif-display);font-style:italic;font-weight:300;
  font-size:24px;line-height:1.3;color:var(--ink);
  background:rgba(184,72,46,.06);text-align:left;
}

/* Professor feature section */
.professor-feature{
  background:#fff5e6;
  padding:120px var(--gutter);
  border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
  position:relative;overflow:hidden;
}
.professor-feature::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(168,88,28,.04) 0%, transparent 80%);
  pointer-events:none;
}
.professor-grid{
  display:grid;grid-template-columns:1fr 1.4fr;gap:80px;
  max-width:var(--container);margin:0 auto;align-items:center;position:relative;
}
.professor-cover{
  aspect-ratio:16/23;max-width:380px;width:100%;
  box-shadow:0 40px 80px -20px rgba(0,0,0,.5),0 20px 30px -15px rgba(0,0,0,.3);
}
.professor-cover img{width:100%;height:100%;object-fit:cover}
.professor-body .pre{color:var(--prf)}
.professor-body h2{
  font-family:var(--serif-display);font-weight:300;font-style:italic;
  font-size:clamp(34px,4.5vw,52px);line-height:1.05;
  letter-spacing:-.02em;margin:0 0 28px;color:var(--ink);
}
.professor-body h2 em{color:var(--prf)}
.professor-body p{
  font-family:var(--serif-text);font-size:17px;line-height:1.7;
  color:var(--ink-soft);margin:0 0 18px;
}
.professor-ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}

/* ---------- 9. Method (4 levels) ---------- */
.method{padding:100px var(--gutter);max-width:var(--container);margin:0 auto}
.method .pre{text-align:center}
.method h2{
  font-family:var(--serif-display);font-weight:300;font-style:italic;
  font-size:clamp(32px,4.5vw,48px);line-height:1.05;
  text-align:center;margin:0 0 60px;letter-spacing:-.02em;
}
.method-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  max-width:900px;margin:0 auto;
}
.lvl-card{
  padding:28px 20px;border:1px solid var(--rule);background:var(--paper);
  text-align:center;transition:border-color .18s var(--ease),transform .18s var(--ease);
  position:relative;
}
.lvl-card:hover{border-color:var(--exp);transform:translateY(-3px)}
.lvl-card .lnum{
  font-family:var(--mono);font-size:10px;letter-spacing:.22em;
  color:var(--exp);font-weight:500;
}
.lvl-card h4{
  font-family:var(--serif-display);font-style:italic;font-weight:400;
  font-size:24px;margin:10px 0 12px;color:var(--ink);letter-spacing:-.01em;
}
.lvl-card p{
  font-family:var(--serif-text);font-size:13px;line-height:1.55;
  color:var(--ink-soft);margin:0;
}
.method-tail{
  text-align:center;font-family:var(--serif-text);font-style:italic;
  font-size:17px;color:var(--ink-soft);max-width:680px;
  margin:50px auto 0;line-height:1.6;
}

/* ---------- 10. Personas (for whom) ---------- */
.for-whom{
  background:var(--ink);color:var(--paper);
  padding:100px var(--gutter);
}
.for-wrap{max-width:var(--container);margin:0 auto}
.for-wrap .pre{
  color:rgba(255,236,210,.6);text-align:center;
}
.for-wrap h2{
  font-family:var(--serif-display);font-weight:300;font-style:italic;
  font-size:clamp(32px,4.5vw,48px);text-align:center;
  margin:0 0 60px;letter-spacing:-.02em;color:var(--paper);line-height:1.1;
}
.for-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:36px;
}
.for-item .icon-num{
  font-family:var(--mono);font-size:10px;letter-spacing:.22em;
  color:var(--prf-glow);margin-bottom:10px;text-transform:uppercase;
}
.for-item h4{
  font-family:var(--serif-display);font-style:italic;font-weight:400;
  font-size:22px;margin:0 0 12px;color:var(--paper);letter-spacing:-.01em;
}
.for-item p{
  font-family:var(--serif-text);font-size:14.5px;line-height:1.6;
  color:rgba(255,236,210,.78);margin:0;
}

/* ---------- 11. Authors ---------- */
.authors{
  background:var(--paper-2);
  padding:100px var(--gutter);
  border-top:1px solid var(--rule);
}
.auth-wrap{max-width:var(--container);margin:0 auto}
.auth-wrap .pre{text-align:center}
.auth-wrap h2{
  font-family:var(--serif-display);font-weight:300;font-style:italic;
  font-size:clamp(32px,4.5vw,48px);text-align:center;
  margin:0 0 60px;letter-spacing:-.02em;
}
.auth-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.auth-card .role{
  font-family:var(--mono);font-size:10px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--exp);margin-bottom:8px;
}
.auth-card h3{
  font-family:var(--serif-display);font-weight:500;font-size:30px;
  margin:0 0 14px;color:var(--ink);letter-spacing:-.01em;
}
.auth-card p{
  font-family:var(--serif-text);font-size:15.5px;line-height:1.7;
  color:var(--ink-soft);margin:0;
}

/* ---------- 12. Where to buy (logos grid) ---------- */
.where{padding:80px var(--gutter);max-width:var(--container);margin:0 auto;text-align:center}
.where .pre{color:var(--ink-faint)}
.where h2{
  font-family:var(--serif-display);font-style:italic;font-weight:300;
  font-size:36px;margin:0 0 40px;letter-spacing:-.02em;
}
.where-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  max-width:760px;margin:0 auto;
}
.where-card{
  padding:24px 18px;border:1px solid var(--rule);background:var(--paper);
  text-decoration:none;color:var(--ink-soft);font-family:var(--mono);
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  transition:all .18s var(--ease);
}
.where-card:hover{border-color:var(--exp);color:var(--exp)}
.where-card b{
  display:block;font-family:var(--serif-display);font-style:italic;
  font-size:18px;font-weight:400;letter-spacing:0;text-transform:none;
  color:var(--ink);margin-bottom:4px;
}

/* ---------- 13. Final CTA ---------- */
.final-cta{
  padding:120px var(--gutter);text-align:center;
  background:var(--exp);color:var(--paper);
}
.final-cta blockquote{
  margin:0 auto 40px;font-family:var(--serif-display);
  font-style:italic;font-weight:300;
  font-size:clamp(28px,4vw,42px);line-height:1.18;
  letter-spacing:-.02em;max-width:780px;
}
.final-cta blockquote em{color:#fff;font-style:italic}
.final-cta .btn{background:var(--paper);color:var(--exp);font-weight:600;border-color:var(--paper)}
.final-cta .btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* ---------- 14. Footer ---------- */
footer.site-footer{
  background:var(--ink);color:rgba(255,236,210,.65);
  padding:60px var(--gutter);text-align:center;
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;line-height:1.8;
}
footer.site-footer em{
  font-family:var(--serif-display);font-style:italic;text-transform:none;
  letter-spacing:0;color:var(--paper);font-size:22px;display:block;margin-bottom:14px;
}
footer.site-footer .isbn{
  font-family:var(--mono);font-size:10px;letter-spacing:.15em;
  color:rgba(255,236,210,.45);margin:20px 0;line-height:2;
}
footer.site-footer .links{
  display:flex;justify-content:center;flex-wrap:wrap;gap:0;
  margin:18px 0 20px;
}
footer.site-footer .links a{
  color:rgba(255,236,210,.85);text-decoration:none;margin:0 14px;
}
footer.site-footer .links a:hover{color:var(--prf-glow)}
footer.site-footer .links span{opacity:.3;margin:0 2px}

/* ---------- 15. Form (landing kit pages) ---------- */
.form-section{
  background:var(--paper-2);
  padding:80px var(--gutter);
  border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
}
.form-section.amber{background:#fff5e6}
.form-wrap{max-width:680px;margin:0 auto}
.form-wrap .pre{text-align:center}
.form-section.amber .form-wrap .pre{color:var(--prf)}
.form-wrap h2{
  font-family:var(--serif-display);font-weight:300;font-style:italic;
  font-size:clamp(28px,4vw,42px);line-height:1.05;
  letter-spacing:-.02em;text-align:center;margin:0 0 16px;color:var(--ink);
}
.form-wrap > .form-lead{
  font-family:var(--serif-text);font-size:16px;line-height:1.6;
  color:var(--ink-soft);text-align:center;margin:0 auto 36px;max-width:560px;
}

.scae-form{
  background:var(--paper);
  padding:36px;
  border:1px solid var(--rule);
  border-radius:4px;
}
.field{margin-bottom:20px;position:relative}
.field label{
  display:block;font-family:var(--mono);font-size:10px;
  letter-spacing:.22em;text-transform:uppercase;
  color:var(--ink-soft);margin-bottom:8px;
}
.field label .req{color:var(--exp)}
.form-section.amber .field label .req{color:var(--prf)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;
  border:1px solid var(--rule);border-radius:3px;
  background:var(--paper);
  font-family:var(--serif-text);font-size:15px;color:var(--ink);
  transition:border-color .15s var(--ease),box-shadow .15s var(--ease);
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--exp);
  box-shadow:0 0 0 3px rgba(184,72,46,.12);
}
.form-section.amber .field input:focus,
.form-section.amber .field select:focus{
  border-color:var(--prf);box-shadow:0 0 0 3px rgba(168,88,28,.14);
}
.field input[aria-invalid="true"],
.field select[aria-invalid="true"],
.field.has-error input,
.field.has-error select{
  border-color:#a02e1a;background:rgba(160,46,26,.04);
}
.field-msg{
  font-family:var(--serif-text);font-style:italic;font-size:12.5px;
  color:#a02e1a;margin-top:6px;min-height:0;line-height:1.4;
}
.field-msg:empty{display:none}
.field.has-error .field-msg{display:block}

/* Microcopy de instrução acima do form (ex.: "tem mais de um livro?") */
.form-note{
  font-family:var(--serif-text);font-size:14px;line-height:1.55;
  color:var(--ink-soft);background:rgba(184,72,46,.05);
  border-left:3px solid var(--exp);
  padding:14px 18px;margin:0 0 24px;border-radius:2px;
}
.form-note strong{color:var(--ink);font-weight:600}
.form-section.amber .form-note{
  background:rgba(168,88,28,.07);border-left-color:var(--prf);
}

/* Consent LGPD — checkbox obrigatório com link (alinhamento corrigido) */
.field-consent{
  display:flex;align-items:flex-start;gap:12px;
  font-family:var(--serif-text);font-size:13.5px;line-height:1.5;
  color:var(--ink-soft);margin:14px 0 0;text-align:left;
  padding:10px 0;
}
.field-consent input[type=checkbox]{
  appearance:none;-webkit-appearance:none;
  width:18px;height:18px;flex-shrink:0;margin:1px 0 0;
  border:1.5px solid var(--rule);border-radius:3px;
  background:var(--paper);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .15s var(--ease);
}
.field-consent input[type=checkbox]:checked{
  background:var(--exp);border-color:var(--exp);
}
.field-consent input[type=checkbox]:checked::after{
  content:"";width:5px;height:9px;
  border:solid var(--paper);border-width:0 2px 2px 0;
  transform:translateY(-1px) rotate(45deg);
}
.field-consent input[type=checkbox]:focus-visible{
  outline:2px solid var(--exp);outline-offset:2px;
}
.field-consent span{flex:1;text-align:left}
.form-section.amber .field-consent input[type=checkbox]:checked{
  background:var(--prf);border-color:var(--prf);
}
.form-section.amber .field-consent input[type=checkbox]:focus-visible{
  outline-color:var(--prf);
}
.field-consent a{color:var(--exp);text-decoration:underline}
.field-consent a:hover{color:var(--ink)}
.form-section.amber .field-consent a{color:var(--prf)}

/* Banner pré-preenchido (multi-livro UX) */
.prefill-banner{
  font-family:var(--serif-text);font-size:13.5px;line-height:1.55;
  color:var(--ink);background:rgba(74,97,71,.10);
  border-left:3px solid var(--trf);
  padding:12px 16px;margin:0 0 20px;border-radius:2px;
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
.prefill-banner strong{font-weight:600}
.prefill-banner .prefill-clear{
  font-family:var(--mono);font-size:10px;letter-spacing:.15em;
  text-transform:uppercase;background:transparent;color:var(--ink-soft);
  border:1px solid var(--rule);padding:5px 10px;border-radius:2px;
  cursor:pointer;margin-left:auto;
}
.prefill-banner .prefill-clear:hover{
  background:var(--ink);color:var(--paper);border-color:var(--ink);
}

/* Botão/badge "Em breve" — link de compra desativado */
.btn.disabled, .cta.disabled, .primary.disabled, .ghost.disabled{
  pointer-events:none;cursor:not-allowed;opacity:.55;
  filter:saturate(.6);
  position:relative;
}
.book-ctas .primary.disabled,
.book-ctas .ghost.disabled{
  display:inline-block;padding:12px 22px;
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;font-weight:600;
  border-radius:3px;text-decoration:none;
  background:var(--ink-faint);color:var(--paper);
  border:1px solid transparent;
}
.topbar .cta.disabled{
  background:var(--ink-faint);color:var(--paper);
}

.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

.checkbox-group{
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin-top:6px;
}
.checkbox-group label{
  display:flex;align-items:center;gap:8px;
  font-family:var(--serif-text);font-size:13px;color:var(--ink-soft);
  letter-spacing:0;text-transform:none;cursor:pointer;
  padding:10px;border:1px solid var(--rule);border-radius:3px;
  transition:all .15s var(--ease);
}
.checkbox-group label:hover{border-color:var(--exp);color:var(--exp)}
.checkbox-group input[type=checkbox]{accent-color:var(--exp)}
.checkbox-group label:has(input:checked){
  background:var(--exp);color:var(--paper);border-color:var(--exp);
}
.form-section.amber .checkbox-group label:hover{border-color:var(--prf);color:var(--prf)}
.form-section.amber .checkbox-group label:has(input:checked){
  background:var(--prf);color:#fff8eb;border-color:var(--prf);
}

.code-field input{
  font-family:var(--mono);letter-spacing:.18em;text-transform:uppercase;
  font-weight:500;text-align:center;font-size:18px;
}
.code-hint{
  font-family:var(--serif-text);font-style:italic;
  font-size:12px;color:var(--ink-faint);
  margin-top:6px;text-align:center;
}

.consent-row label{
  font-family:var(--serif-text);font-style:italic;font-size:13px;
  color:var(--ink-soft);letter-spacing:0;text-transform:none;
  display:flex;align-items:flex-start;gap:8px;cursor:pointer;
}
.consent-row input{margin-top:3px;accent-color:var(--exp)}
.form-section.amber .consent-row input{accent-color:var(--prf)}

button.submit{
  width:100%;padding:18px;
  background:var(--exp);color:var(--paper);
  border:none;font-family:var(--mono);font-size:13px;
  letter-spacing:.22em;text-transform:uppercase;font-weight:500;
  border-radius:3px;transition:background .18s var(--ease);
  margin-top:8px;display:flex;align-items:center;justify-content:center;gap:12px;
}
button.submit:hover:not(:disabled){background:var(--exp-deep)}
button.submit:disabled{opacity:.65;cursor:wait}
.form-section.amber button.submit{background:var(--prf)}
.form-section.amber button.submit:hover:not(:disabled){background:var(--prf-deep)}

/* Spinner */
.spinner{
  width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(255,255,255,.35);
  border-top-color:#fff;
  animation:spin .8s linear infinite;
  display:none;
}
button.submit.loading .spinner{display:inline-block}
button.submit.loading .label-idle{display:none}
button.submit .label-loading{display:none}
button.submit.loading .label-loading{display:inline}
@keyframes spin{to{transform:rotate(360deg)}}

.privacy{
  font-family:var(--serif-text);font-style:italic;font-size:12px;
  color:var(--ink-faint);text-align:center;
  margin-top:20px;line-height:1.55;
}

.form-error{
  display:none;
  background:rgba(160,46,26,.08);
  border:1px solid rgba(160,46,26,.4);
  border-left:3px solid #a02e1a;
  color:#7a2114;
  padding:14px 18px;border-radius:3px;
  font-family:var(--serif-text);font-size:14px;
  margin-bottom:18px;
}
.form-error.show{display:block}

.honeypot{position:absolute;left:-9999px;width:1px;height:1px;opacity:0;pointer-events:none}

/* Trio mini cards (ferramentas/landing) */
.trio-mini{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  max-width:var(--container);margin:30px auto 60px;padding:0 var(--gutter);
}
.trio-mini-card{
  padding:28px 22px;border:1px solid var(--rule);
  text-align:center;background:var(--paper);
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.trio-mini-card:hover{transform:translateY(-3px)}
.trio-mini-card[data-c="1"]:hover{border-color:var(--exp)}
.trio-mini-card[data-c="2"]:hover{border-color:var(--prj)}
.trio-mini-card[data-c="3"]:hover{border-color:var(--trf)}
.trio-mini-card .mini-cover{
  width:78px;height:112px;margin:0 auto 14px;
  background:var(--paper-2);box-shadow:0 8px 20px -6px rgba(0,0,0,.3);
  position:relative;overflow:hidden;
}
.trio-mini-card .mini-cover img{width:100%;height:100%;object-fit:cover}
.trio-mini-card .mini-cover.cv-3{
  background:linear-gradient(160deg,#67805e 0%,#3e5240 100%);
  display:flex;align-items:flex-end;justify-content:center;
  padding:8px 6px;color:var(--paper);font-family:var(--serif-display);
  font-style:italic;font-size:13px;line-height:1;text-align:center;
  position:relative;overflow:hidden;
}
.trio-mini-card .mini-cover.cv-3::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 30% 40%, rgba(255,240,220,.22) 0 1px, transparent 1.5px),
    radial-gradient(circle at 70% 25%, rgba(255,240,220,.18) 0 1px, transparent 1.5px),
    radial-gradient(circle at 50% 70%, rgba(255,240,220,.22) 0 1px, transparent 1.5px);
}
.trio-mini-card .mini-cover.cv-3 > *{position:relative;z-index:1}
.trio-mini-card .num{
  font-family:var(--mono);font-size:10px;letter-spacing:.25em;
  text-transform:uppercase;color:var(--ink-faint);
}
.trio-mini-card .verb{
  font-family:var(--serif-display);font-style:italic;font-weight:400;
  font-size:32px;margin:8px 0 6px;letter-spacing:-.01em;
}
.trio-mini-card[data-c="1"] .verb{color:var(--exp)}
.trio-mini-card[data-c="2"] .verb{color:var(--prj)}
.trio-mini-card[data-c="3"] .verb{color:var(--trf)}
.trio-mini-card .sub{
  font-family:var(--serif-text);font-style:italic;font-size:13px;
  line-height:1.5;color:var(--ink-soft);
}
.trio-mini-card .sub b{
  font-family:var(--mono);font-style:normal;letter-spacing:.1em;
  font-size:11px;
}

/* "What you receive" grid */
.receive{padding:80px var(--gutter);max-width:var(--container);margin:0 auto}
.receive .pre{text-align:center}
.receive h2{
  font-family:var(--serif-display);font-weight:300;font-style:italic;
  font-size:clamp(28px,4vw,42px);line-height:1.05;
  letter-spacing:-.02em;text-align:center;margin:0 0 50px;color:var(--ink);
}
.receive-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px}
.receive-item h3{
  font-family:var(--serif-display);font-size:22px;font-weight:400;
  margin:0;color:var(--ink);letter-spacing:-.01em;
}
.receive-item .icon-line{
  display:flex;align-items:baseline;gap:14px;margin-bottom:10px;
}
.receive-item .icon-line .num{
  font-family:var(--mono);font-size:11px;letter-spacing:.22em;
  color:var(--exp);font-weight:500;
}
.receive-item p{
  font-family:var(--serif-text);font-size:15px;line-height:1.65;
  color:var(--ink-soft);margin:0;
}

/* Resource cards (Professor kit) */
.res-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.res-card{
  background:var(--paper-2);border:1px solid var(--rule);
  padding:26px 28px;display:flex;flex-direction:column;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
  position:relative;
}
.res-card:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 28px rgba(0,0,0,.08);
  border-color:var(--prf);
}
.res-card .num{
  font-family:var(--mono);font-size:10px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--prf);font-weight:600;margin-bottom:10px;
}
.res-card h3{
  font-family:var(--serif-display);font-size:22px;font-weight:500;
  margin:0 0 8px;line-height:1.2;
}
.res-card p{
  font-size:14.5px;line-height:1.55;color:var(--ink-soft);
  margin:0 0 16px;flex:1;
}
.res-card .actions{display:flex;gap:8px;flex-wrap:wrap}
.res-card .actions .btn{padding:10px 16px;font-size:10px}

/* Locked state for resources before code is entered */
.res-card.locked{position:relative;overflow:hidden}
.res-card.locked::after{
  content:"";position:absolute;inset:0;
  background:rgba(243,236,223,.55);
  backdrop-filter:blur(2px);
  pointer-events:none;
}
.res-card.locked .lock-overlay{
  position:absolute;inset:0;display:flex;
  align-items:center;justify-content:center;flex-direction:column;
  z-index:2;font-family:var(--mono);font-size:10px;
  letter-spacing:.22em;text-transform:uppercase;color:var(--ink);
  text-align:center;padding:20px;
}
.res-card.locked .lock-overlay svg{
  margin-bottom:10px;color:var(--prf);
}

/* ---------- 16. Modal ---------- */
.modal{
  position:fixed;inset:0;
  background:rgba(26,23,20,.85);
  display:none;align-items:center;justify-content:center;
  z-index:1000;padding:20px;
}
.modal.show{display:flex;animation:fadeIn .25s var(--ease)}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal-content{
  background:var(--paper);
  max-width:520px;width:100%;
  padding:50px 40px;border-radius:4px;text-align:center;
  animation:slideUp .3s var(--ease);
}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}
.modal-content .check{
  width:60px;height:60px;border-radius:50%;
  background:var(--exp);color:var(--paper);
  display:flex;align-items:center;justify-content:center;
  font-size:28px;margin:0 auto 24px;
}
.modal.amber .modal-content .check{background:var(--prf)}
.modal-content h3{
  font-family:var(--serif-display);font-style:italic;font-weight:300;
  font-size:32px;margin:0 0 16px;color:var(--ink);letter-spacing:-.02em;
}
.modal-content p{
  font-family:var(--serif-text);font-size:16px;line-height:1.6;
  color:var(--ink-soft);margin:0 0 24px;
}
.modal-content button{
  padding:12px 28px;background:var(--exp);color:var(--paper);
  border:none;font-family:var(--mono);font-size:11px;
  letter-spacing:.22em;text-transform:uppercase;cursor:pointer;
  border-radius:3px;transition:background .18s var(--ease);
}
.modal-content button:hover{background:var(--exp-deep)}
.modal.amber .modal-content button{background:var(--prf)}
.modal.amber .modal-content button:hover{background:var(--prf-deep)}

/* ---------- 17. Responsive ---------- */
@media (max-width: 900px){
  .topbar nav{display:none}
  .trio-grid{grid-template-columns:1fr;gap:50px}
  .method-grid{grid-template-columns:1fr 1fr}
  .for-grid{grid-template-columns:1fr 1fr}
  .professor-grid{grid-template-columns:1fr;gap:50px;text-align:center}
  .professor-cover{margin:0 auto}
  .professor-ctas{justify-content:center}
  .auth-grid{grid-template-columns:1fr;gap:40px}
  .where-grid{grid-template-columns:1fr 1fr}
}
@media (max-width: 768px){
  :root{--gutter:24px}
  .hero{padding:80px var(--gutter) 60px}
  .section{padding:70px var(--gutter)}
  .trio-mini{grid-template-columns:1fr}
  .field-row,.checkbox-group{grid-template-columns:1fr}
  .receive-grid,.res-grid{grid-template-columns:1fr}
  .for-grid{grid-template-columns:1fr;gap:28px}
  .scae-form{padding:24px}
  .what blockquote{padding:18px 20px;font-size:20px}
  .what p{text-align:left;hyphens:none}
}
@media (max-width: 480px){
  .topbar{padding:12px 16px}
  .topbar .brand{font-size:16px}
  .topbar .cta{padding:8px 12px;font-size:9px}
  .hero h1{font-size:42px}
  .final-cta blockquote{font-size:24px}
}

/* ---------- 18. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    transition-duration:.01ms !important;
  }
  html{scroll-behavior:auto}
}

/* ---------- 19. Print ---------- */
@media print{
  .topbar,.final-cta,footer.site-footer,.form-section{display:none}
  body{background:#fff;color:#000}
}