/* ============================================================
   Os Segredos do Conhecimento — site oficial
   Paleta inspirada na capa: verde-petróleo, dourado, bioluminescência
   ============================================================ */

:root{
  --bg:            #0a1416;
  --bg-2:          #0d1c1f;
  --bg-3:          #102529;
  --panel:         #12262b;
  --panel-2:       #16303610;
  --line:          #23413f;
  --line-soft:     #1b332f;

  --gold:          #d9bd7e;
  --gold-bright:   #ecd7a0;
  --gold-deep:     #b8945180;
  --cream:         #f4ecd8;

  --aqua:          #64d6c4;
  --aqua-soft:     #3fae9f;
  --violet:        #a98cd9;

  --ink:           #f4ecd8;
  --text:          #c3d0cc;
  --muted:         #859995;
  --muted-2:       #5f7370;

  --font-display: 'Cinzel', 'Playfair Display', Georgia, serif;
  --font-serif:   'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans:    'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --radius:   16px;
  --radius-sm:10px;
  --maxw:     1140px;
  --shadow:   0 24px 60px -20px rgba(0,0,0,.65);
  --glow-gold: 0 0 40px -8px rgba(217,189,126,.35);
}

*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }

body{
  font-family:var(--font-sans);
  color:var(--text);
  background:var(--bg);
  line-height:1.65;
  font-size:clamp(16px, 1vw + 14px, 18px);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
em{ font-style:italic; color:var(--cream); }
strong{ color:var(--ink); font-weight:600; }
::selection{ background:var(--gold); color:#14100a; }

.wrap{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:clamp(20px,5vw,40px); }
.wrap--narrow{ max-width:820px; }

/* ---------- Tipografia utilitária ---------- */
.eyebrow{
  display:inline-block;
  font-family:var(--font-sans);
  font-size:.74rem; font-weight:600; letter-spacing:.22em; text-transform:uppercase;
  color:var(--gold); margin-bottom:1rem;
}
.eyebrow--center{ display:block; text-align:center; }

.h2{
  font-family:var(--font-serif);
  font-weight:600;
  font-size:clamp(1.9rem, 3.6vw, 2.9rem);
  line-height:1.12; color:var(--ink); letter-spacing:-.01em;
}
.h2--sm{ font-size:clamp(1.6rem,3vw,2.2rem); }
.grad{
  background:linear-gradient(120deg,var(--gold-bright),var(--aqua));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.lead{ font-size:clamp(1.05rem,1.4vw,1.22rem); color:var(--text); margin-top:1.1rem; }
.lead--center{ text-align:center; }

/* ---------- Botões ---------- */
.btn{
  --btn-fg:#14100a;
  display:inline-flex; align-items:center; justify-content:center; gap:.55em;
  font-family:var(--font-sans); font-weight:600; font-size:.98rem;
  padding:.85em 1.5em; border-radius:100px; border:1px solid transparent;
  cursor:pointer; transition:transform .18s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
  white-space:nowrap; line-height:1;
}
.btn--sm{ padding:.6em 1.15em; font-size:.88rem; }
.btn--lg{ padding:1.05em 1.9em; font-size:1.05rem; }
.btn--block{ display:flex; width:100%; }
.btn--primary{
  background:linear-gradient(135deg,var(--gold-bright),var(--gold));
  color:var(--btn-fg); box-shadow:var(--glow-gold);
}
.btn--primary:hover{ transform:translateY(-2px); box-shadow:0 0 50px -6px rgba(217,189,126,.55); }
.btn--ghost{
  background:transparent; color:var(--cream); border-color:var(--line);
}
.btn--ghost:hover{ border-color:var(--gold); color:var(--gold-bright); transform:translateY(-2px); }
.btn__price{
  font-size:.82em; background:rgba(20,16,10,.16); padding:.3em .7em; border-radius:100px; margin-left:.2em;
}
.btn:focus-visible{ outline:2px solid var(--aqua); outline-offset:3px; }

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:50;
  transition:background .3s ease, border-color .3s ease, backdrop-filter .3s;
  border-bottom:1px solid transparent;
}
.nav.is-scrolled{
  background:rgba(9,18,20,.82);
  backdrop-filter:saturate(140%) blur(14px);
  border-bottom-color:var(--line-soft);
}
.nav__inner{
  max-width:var(--maxw); margin-inline:auto; padding:.85rem clamp(20px,5vw,40px);
  display:flex; align-items:center; gap:1.5rem;
}
.nav__brand{ display:flex; align-items:center; gap:.6rem; margin-right:auto; }
.nav__brand-mark{ color:var(--gold); font-size:1.1rem; }
.nav__brand-text{
  font-family:var(--font-display); font-weight:600; font-size:.82rem; line-height:1.15;
  letter-spacing:.06em; color:var(--cream); text-transform:uppercase;
}
.nav__links{ display:flex; gap:1.6rem; }
.nav__links a{ font-size:.92rem; color:var(--text); transition:color .2s; }
.nav__links a:hover{ color:var(--gold-bright); }
.nav__toggle{ display:none; flex-direction:column; gap:5px; background:none; border:0; cursor:pointer; padding:6px; }
.nav__toggle span{ width:24px; height:2px; background:var(--cream); border-radius:2px; transition:.25s; }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative; overflow:hidden;
  padding:clamp(120px,16vh,180px) 0 clamp(60px,8vh,90px);
  background:
    radial-gradient(120% 80% at 78% 12%, rgba(100,214,196,.10), transparent 55%),
    radial-gradient(90% 70% at 12% 90%, rgba(169,140,217,.12), transparent 55%),
    linear-gradient(180deg,#08110f 0%, var(--bg) 60%, var(--bg-2) 100%);
}
.hero__stars{
  position:absolute; inset:0; opacity:.5; pointer-events:none;
  background-image:
    radial-gradient(1px 1px at 20% 30%, #fff, transparent),
    radial-gradient(1px 1px at 60% 20%, #cfe8e2, transparent),
    radial-gradient(1px 1px at 80% 60%, #fff, transparent),
    radial-gradient(1.5px 1.5px at 35% 75%, #e8dcc0, transparent),
    radial-gradient(1px 1px at 90% 35%, #fff, transparent),
    radial-gradient(1px 1px at 10% 55%, #bfe6dd, transparent),
    radial-gradient(1.5px 1.5px at 50% 45%, #fff, transparent);
  background-repeat:no-repeat;
}
.hero__glow{
  position:absolute; width:60vw; height:60vw; max-width:640px; max-height:640px;
  right:-8%; top:2%; border-radius:50%;
  background:radial-gradient(circle, rgba(100,214,196,.16), transparent 62%);
  filter:blur(30px); pointer-events:none;
}
.hero__inner{
  position:relative; z-index:2; max-width:var(--maxw); margin-inline:auto;
  padding-inline:clamp(20px,5vw,40px);
  display:grid; grid-template-columns:1.15fr .85fr; gap:clamp(30px,5vw,64px); align-items:center;
}
.hero__title{
  font-family:var(--font-display); font-weight:700;
  font-size:clamp(2.5rem,6.2vw,4.6rem); line-height:1.02; letter-spacing:.01em;
  color:var(--cream); margin:.35rem 0 0;
  text-shadow:0 2px 30px rgba(0,0,0,.5);
}
.hero__sub{
  font-family:var(--font-serif); font-style:italic;
  font-size:clamp(1.1rem,1.8vw,1.45rem); color:var(--gold-bright);
  margin-top:1.1rem; line-height:1.4;
}
.hero__lede{ margin-top:1.4rem; max-width:44ch; color:var(--text); }
.hero__cta{ display:flex; flex-wrap:wrap; gap:.9rem; margin-top:2rem; }
.hero__meta{
  list-style:none; display:flex; flex-wrap:wrap; gap:.4rem 1.6rem;
  margin-top:1.9rem; font-size:.9rem; color:var(--muted);
}
.hero__meta li{ letter-spacing:.01em; }
.hero__meta ::marker{ content:''; }

/* Livro / capa */
.hero__art{ display:flex; justify-content:center; perspective:1400px; }
.book{
  position:relative; width:min(78vw,360px);
  border-radius:8px; overflow:hidden;
  box-shadow:
    0 2px 0 rgba(255,255,255,.06) inset,
    -18px 26px 60px -18px rgba(0,0,0,.8),
    0 0 60px -12px rgba(100,214,196,.25);
  transform:rotateY(-11deg) rotateX(3deg); transform-style:preserve-3d;
  transition:transform .5s cubic-bezier(.2,.7,.2,1);
  border:1px solid rgba(217,189,126,.22);
}
.book:hover{ transform:rotateY(-4deg) rotateX(1deg) translateY(-6px); }
.book__img{ width:100%; height:auto; display:block; }
.book__shine{
  position:absolute; inset:0;
  background:linear-gradient(105deg, transparent 30%, rgba(255,255,255,.14) 46%, transparent 60%);
  mix-blend-mode:screen; pointer-events:none;
}
.hero__scroll{
  position:absolute; left:50%; bottom:24px; transform:translateX(-50%);
  z-index:3; color:var(--muted); font-size:1.4rem; animation:bob 2.4s ease-in-out infinite;
}
@keyframes bob{ 0%,100%{ transform:translate(-50%,0);} 50%{ transform:translate(-50%,7px);} }

/* ============================================================
   STATS
   ============================================================ */
.stats{
  border-block:1px solid var(--line-soft);
  background:linear-gradient(180deg,var(--bg-2),var(--bg));
}
.stats__inner{
  max-width:var(--maxw); margin-inline:auto; padding:clamp(28px,5vw,46px) clamp(20px,5vw,40px);
  display:grid; grid-template-columns:repeat(4,1fr); gap:1.5rem; text-align:center;
}
.stat{ display:flex; flex-direction:column; gap:.35rem; position:relative; }
.stat:not(:last-child)::after{
  content:''; position:absolute; right:calc(-.75rem - 1px); top:15%; bottom:15%; width:1px;
  background:var(--line-soft);
}
.stat__num{
  font-family:var(--font-serif); font-weight:600;
  font-size:clamp(2rem,4vw,3rem); color:var(--gold-bright); line-height:1;
}
.stat__pct{ font-size:.6em; color:var(--gold); }
.stat__label{ font-size:.86rem; color:var(--muted); letter-spacing:.02em; }

/* ============================================================
   SECTIONS base
   ============================================================ */
.section{ padding:clamp(64px,10vw,120px) 0; position:relative; }
[id]{ scroll-margin-top:84px; }
.section__head{ text-align:center; max-width:720px; margin:0 auto clamp(38px,6vw,60px); }
.section__sub{ color:var(--muted); margin-top:.9rem; font-size:1.05rem; }

.section--intro{ background:var(--bg); }
.lede-block{ max-width:760px; margin:0 auto; text-align:center; }

.hooks{
  margin-top:clamp(40px,6vw,64px);
  display:grid; grid-template-columns:repeat(3,1fr); gap:1.25rem;
}
.hook{
  background:linear-gradient(180deg,var(--panel),var(--bg-3));
  border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:1.6rem 1.5rem; position:relative;
}
.hook__icon{ font-size:1.7rem; display:block; margin-bottom:.7rem; }
.hook p{ font-size:.98rem; color:var(--text); }

/* ---------- Amostra / cards ---------- */
.section--sample{ background:linear-gradient(180deg,var(--bg),var(--bg-2)); }
.cards{ display:grid; grid-template-columns:repeat(4,1fr); gap:1.15rem; }
.card{
  background:linear-gradient(180deg,var(--panel),var(--bg-3));
  border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:1.5rem 1.4rem; transition:transform .25s ease, border-color .25s ease, box-shadow .25s;
}
.card:hover{ transform:translateY(-4px); border-color:var(--gold-deep); box-shadow:var(--shadow); }
.card__tag{
  font-size:.68rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase;
  color:var(--aqua); display:inline-block; margin-bottom:.7rem;
}
.card h3{ font-family:var(--font-serif); font-weight:600; font-size:1.14rem; color:var(--ink); line-height:1.25; margin-bottom:.55rem; }
.card p{ font-size:.92rem; color:var(--muted); }
.card p strong{ color:var(--cream); }

/* ---------- Verdade / diferencial ---------- */
.section--truth{ background:var(--bg-2); }
.truth{ text-align:center; }
.myths{ display:flex; flex-wrap:wrap; justify-content:center; gap:.8rem; margin-top:2.2rem; }
.myth{
  display:inline-flex; align-items:center; gap:.6rem;
  background:rgba(169,140,217,.06); border:1px solid var(--line-soft);
  border-radius:100px; padding:.6rem 1.1rem; font-size:.9rem; color:var(--text);
}
.myth__x{ color:#e98c8c; font-weight:700; }
.myth em{ color:var(--gold-bright); font-style:normal; font-weight:600; }

/* ---------- Capítulos ---------- */
.section--chapters{ background:linear-gradient(180deg,var(--bg-2),var(--bg)); }
.chapters{ list-style:none; display:grid; grid-template-columns:repeat(2,1fr); gap:.7rem; counter-reset:none; }
.chapter{
  display:flex; align-items:center; gap:1rem;
  background:linear-gradient(180deg,var(--panel),var(--bg-3));
  border:1px solid var(--line-soft); border-radius:var(--radius-sm);
  padding:1rem 1.2rem; transition:border-color .2s, transform .2s, background .2s;
}
.chapter:hover{ border-color:var(--gold-deep); transform:translateX(4px); }
.chapter__ic{ font-size:1.4rem; width:2.4rem; height:2.4rem; flex:0 0 auto;
  display:grid; place-items:center; border-radius:50%;
  background:rgba(217,189,126,.08); border:1px solid var(--line); }
.chapter__n{ font-family:var(--font-serif); font-weight:600; color:var(--gold); font-size:1rem; min-width:1.6rem; }
.chapter__t{ font-size:1rem; color:var(--cream); }

/* ---------- O que você recebe ---------- */
.section--get{ background:var(--bg); }
.features{ display:grid; grid-template-columns:repeat(4,1fr); gap:1.15rem; }
.feature{
  background:linear-gradient(180deg,var(--panel),var(--bg-3));
  border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:1.8rem 1.5rem; text-align:center;
}
.feature__ic{ font-size:2rem; display:block; margin-bottom:.9rem; }
.feature h3{ font-family:var(--font-serif); font-weight:600; font-size:1.15rem; color:var(--ink); margin-bottom:.5rem; }
.feature p{ font-size:.92rem; color:var(--muted); }

/* ---------- Autor ---------- */
.section--author{ background:linear-gradient(180deg,var(--bg),var(--bg-2)); }
.author{ display:flex; gap:2rem; align-items:flex-start;
  background:linear-gradient(135deg,var(--panel),var(--bg-3));
  border:1px solid var(--line-soft); border-radius:var(--radius); padding:clamp(1.8rem,4vw,2.6rem); box-shadow:var(--shadow); }
.author__mark{
  flex:0 0 auto; width:84px; height:84px; border-radius:50%;
  display:grid; place-items:center; font-family:var(--font-display); font-weight:700; font-size:1.5rem;
  color:var(--gold-bright); background:radial-gradient(circle at 30% 30%, rgba(217,189,126,.18), rgba(100,214,196,.06));
  border:1px solid var(--gold-deep);
}
.author__body p{ margin-top:.9rem; color:var(--text); }

/* ---------- Oferta ---------- */
.section--offer{ background:var(--bg-2); position:relative; overflow:hidden; }
.offer__glow{
  position:absolute; inset:auto; width:70vw; height:70vw; max-width:700px; max-height:700px;
  left:50%; top:20%; transform:translateX(-50%);
  background:radial-gradient(circle, rgba(217,189,126,.10), transparent 60%);
  filter:blur(20px); pointer-events:none;
}
.pricecard{
  position:relative; z-index:2; max-width:620px; margin:0 auto;
  background:linear-gradient(180deg,#153036,#0f2428);
  border:1px solid var(--gold-deep); border-radius:20px; padding:clamp(1.6rem,4vw,2.4rem);
  box-shadow:var(--shadow), var(--glow-gold);
}
.pricecard__top{ display:flex; gap:1.4rem; align-items:center; }
.pricecard__cover{ width:120px; height:auto; border-radius:6px; box-shadow:0 12px 30px -10px rgba(0,0,0,.7); border:1px solid var(--gold-deep); flex:0 0 auto; }
.pricecard__head h3{ font-family:var(--font-serif); font-weight:600; font-size:1.3rem; color:var(--ink); line-height:1.2; }
.pricecard__vol{ font-size:.85rem; color:var(--muted); display:block; margin-top:.3rem; }
.price{ margin-top:1rem; }
.price__now{ font-family:var(--font-serif); font-weight:600; font-size:2.5rem; color:var(--gold-bright); line-height:1; }
.price__note{ display:block; font-size:.82rem; color:var(--muted); margin-top:.3rem; }
.pricecard__list{ list-style:none; margin:1.6rem 0; display:grid; gap:.7rem; border-top:1px solid var(--line-soft); padding-top:1.4rem; }
.pricecard__list li{ position:relative; padding-left:1.8rem; font-size:.96rem; color:var(--text); }
.pricecard__list li::before{ content:'✓'; position:absolute; left:0; top:0; color:var(--aqua); font-weight:700; }
.pricecard__pay{ text-align:center; font-size:.82rem; color:var(--muted); margin-top:.9rem; letter-spacing:.03em; }
.guarantee{
  max-width:620px; margin:1.6rem auto 0; display:flex; gap:1rem; align-items:center;
  background:rgba(100,214,196,.05); border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:1.2rem 1.4rem;
}
.guarantee__ic{ font-size:1.8rem; flex:0 0 auto; }
.guarantee p{ font-size:.92rem; color:var(--text); }

/* ---------- FAQ ---------- */
.section--faq{ background:linear-gradient(180deg,var(--bg-2),var(--bg)); }
.faq{ display:grid; gap:.7rem; }
.faq__item{
  background:linear-gradient(180deg,var(--panel),var(--bg-3));
  border:1px solid var(--line-soft); border-radius:var(--radius-sm); overflow:hidden;
}
.faq__item summary{
  cursor:pointer; list-style:none; padding:1.15rem 1.4rem; font-weight:600; color:var(--cream);
  font-size:1.02rem; display:flex; align-items:center; justify-content:space-between; gap:1rem;
}
.faq__item summary::-webkit-details-marker{ display:none; }
.faq__item summary::after{ content:'+'; color:var(--gold); font-size:1.4rem; font-weight:400; transition:transform .25s; line-height:1; }
.faq__item[open] summary::after{ transform:rotate(45deg); }
.faq__a{ padding:0 1.4rem 1.25rem; }
.faq__a p{ color:var(--muted); font-size:.96rem; }

/* ---------- CTA final ---------- */
.section--final{ background:
  radial-gradient(80% 120% at 50% 0%, rgba(100,214,196,.10), transparent 60%),
  var(--bg); text-align:center; }
.final__title{
  font-family:var(--font-serif); font-style:italic; font-weight:400;
  font-size:clamp(1.7rem,4vw,2.8rem); color:var(--cream); line-height:1.25; margin-bottom:2rem;
}
.final__note{ margin-top:1.3rem; font-size:.9rem; color:var(--muted); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer{ background:#070f0e; border-top:1px solid var(--line-soft); padding:clamp(40px,6vw,60px) 0; }
.footer__inner{ display:flex; flex-wrap:wrap; gap:1.6rem 2.5rem; align-items:center; justify-content:space-between; }
.footer__brand{ display:flex; align-items:center; gap:.8rem; }
.footer__brand strong{ display:block; font-family:var(--font-display); font-size:.88rem; letter-spacing:.05em; color:var(--cream); }
.footer__brand span{ font-size:.82rem; color:var(--muted); }
.footer__links{ display:flex; flex-wrap:wrap; gap:1.3rem; }
.footer__links a{ font-size:.9rem; color:var(--muted); transition:color .2s; }
.footer__links a:hover{ color:var(--gold-bright); }
.footer__legal{ font-size:.8rem; color:var(--muted-2); line-height:1.6; width:100%; border-top:1px solid var(--line-soft); padding-top:1.4rem; margin-top:.4rem; }

/* ============================================================
   TOAST
   ============================================================ */
.toast{
  position:fixed; left:50%; bottom:28px; transform:translate(-50%,140%);
  background:linear-gradient(135deg,#173a3a,#0f2a2a); color:var(--cream);
  border:1px solid var(--gold-deep); border-radius:12px; padding:.9rem 1.3rem;
  font-size:.92rem; max-width:min(90vw,420px); box-shadow:var(--shadow); z-index:100;
  transition:transform .4s cubic-bezier(.2,.8,.2,1); text-align:center;
}
.toast.is-visible{ transform:translate(-50%,0); }
.toast strong{ color:var(--gold-bright); }

/* ============================================================
   CHECKOUT (modal Pix)
   ============================================================ */
.checkout[hidden]{ display:none; }
.checkout{
  position:fixed; inset:0; z-index:200; display:grid; place-items:center; padding:20px;
}
.checkout__backdrop{ position:absolute; inset:0; background:rgba(4,10,10,.78); backdrop-filter:blur(4px); }
.checkout__panel{
  position:relative; width:100%; max-width:440px; max-height:92vh; overflow-y:auto;
  background:linear-gradient(180deg,#153036,#0e2226);
  border:1px solid var(--gold-deep); border-radius:20px; padding:clamp(1.5rem,4vw,2.1rem);
  box-shadow:var(--shadow), var(--glow-gold);
  animation:coIn .3s cubic-bezier(.2,.8,.2,1);
}
@keyframes coIn{ from{ opacity:0; transform:translateY(16px) scale(.98);} to{ opacity:1; transform:none;} }
@media (prefers-reduced-motion: reduce){ .checkout__panel{ animation:none; } }
.checkout__x{
  position:absolute; top:.9rem; right:1rem; background:none; border:0; color:var(--muted);
  font-size:1.3rem; cursor:pointer; line-height:1; padding:.2rem; transition:color .2s;
}
.checkout__x:hover{ color:var(--gold-bright); }

.co-head{ display:flex; gap:1rem; align-items:center; margin-bottom:1.4rem; }
.co-cover{ width:72px; height:auto; border-radius:5px; border:1px solid var(--gold-deep); box-shadow:0 8px 20px -8px rgba(0,0,0,.7); }
.co-head h3{ font-family:var(--font-serif); font-weight:600; font-size:1.15rem; color:var(--ink); line-height:1.2; }
.co-sub{ font-size:.82rem; color:var(--muted); display:block; margin-top:.2rem; }
.co-price{ font-family:var(--font-serif); font-weight:600; font-size:1.5rem; color:var(--gold-bright); margin-top:.4rem; }

.co-field{ display:block; margin-bottom:.9rem; }
.co-field > span{ display:block; font-size:.82rem; color:var(--text); margin-bottom:.35rem; }
.co-field em{ color:var(--gold); font-style:normal; }
.co-field small{ color:var(--muted-2); }
.co-field input{
  width:100%; background:#0c1e21; border:1px solid var(--line); border-radius:10px;
  padding:.75rem .9rem; color:var(--cream); font-family:var(--font-sans); font-size:.98rem;
  transition:border-color .2s;
}
.co-field input:focus{ outline:none; border-color:var(--gold); }
.co-field input::placeholder{ color:var(--muted-2); }
.co-row{ display:grid; grid-template-columns:1fr 1fr; gap:.8rem; }
.co-note{ font-size:.8rem; color:var(--muted); margin-top:1rem; line-height:1.5; text-align:center; }
.co-err{ background:rgba(233,140,140,.1); border:1px solid rgba(233,140,140,.35); color:#f0b4b4;
  font-size:.86rem; padding:.6rem .8rem; border-radius:8px; margin-bottom:.9rem; }
#coGerar[disabled]{ opacity:.6; cursor:progress; }

.co-h{ font-family:var(--font-serif); font-weight:600; font-size:1.3rem; color:var(--ink); text-align:center; margin-bottom:1.2rem; }
.co-qrwrap{ background:#fff; border-radius:14px; padding:12px; width:232px; margin:0 auto 1.1rem; box-shadow:0 10px 30px -12px rgba(0,0,0,.6); }
.co-qr{ width:208px; height:208px; display:block; image-rendering:pixelated; }
#coCopy{ margin-bottom:1.1rem; }
#coCopy.is-copied{ border-color:var(--aqua); color:var(--aqua); }
.co-wait{ display:flex; align-items:center; justify-content:center; gap:.6rem; color:var(--gold-bright); font-size:.95rem; font-weight:500; }
.co-spin{
  width:16px; height:16px; border:2px solid var(--line); border-top-color:var(--gold-bright);
  border-radius:50%; animation:spin .8s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg); } }

.co-check, .co-x{
  width:64px; height:64px; border-radius:50%; display:grid; place-items:center;
  font-size:2rem; font-weight:700; margin:0 auto 1rem;
}
.co-check{ background:rgba(100,214,196,.14); border:2px solid var(--aqua); color:var(--aqua); animation:pop .4s cubic-bezier(.2,1.4,.4,1); }
.co-x{ background:rgba(233,140,140,.12); border:2px solid #e98c8c; color:#e98c8c; }
@keyframes pop{ 0%{ transform:scale(.4); opacity:0;} 100%{ transform:scale(1); opacity:1;} }
.co-okmsg, .co-errmsg{ text-align:center; color:var(--text); font-size:.96rem; margin-bottom:1.3rem; }
.co-downloads{ display:grid; gap:.6rem; }
.co-downloads .btn{ margin:0; }

/* ============================================================
   REVEAL animations
   ============================================================ */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.is-in{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  .hero__scroll{ animation:none; }
}

/* ============================================================
   RESPONSIVO
   ============================================================ */
@media (max-width:960px){
  .cards, .features{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:820px){
  .nav__links{
    position:absolute; top:100%; left:0; right:0; flex-direction:column; gap:0;
    background:rgba(8,16,17,.98); backdrop-filter:blur(14px); padding:.4rem 0;
    border-bottom:1px solid var(--line-soft);
    transform:translateY(-8px); opacity:0; visibility:hidden;
    transition:transform .28s ease, opacity .28s ease, visibility .28s;
    box-shadow:var(--shadow);
  }
  .nav.is-open .nav__links{ transform:translateY(0); opacity:1; visibility:visible; }
  .nav__links a{ padding:.9rem clamp(20px,5vw,40px); width:100%; }
  .nav__toggle{ display:flex; }
  .nav.is-open .nav__toggle span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
  .nav.is-open .nav__toggle span:nth-child(2){ opacity:0; }
  .nav.is-open .nav__toggle span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

  .hero__inner{ grid-template-columns:1fr; text-align:center; }
  .hero__art{ order:-1; margin-bottom:1rem; }
  .hero__lede{ margin-inline:auto; }
  .hero__cta, .hero__meta{ justify-content:center; }
  .hooks{ grid-template-columns:1fr; }
  .chapters{ grid-template-columns:1fr; }
}
@media (max-width:640px){
  .stats__inner{ grid-template-columns:repeat(2,1fr); gap:2rem 1rem; }
  .stat:nth-child(2)::after{ display:none; }
  .cards, .features{ grid-template-columns:1fr; }
  .pricecard__top{ flex-direction:column; text-align:center; }
  .author{ flex-direction:column; align-items:center; text-align:center; }
  .stat::after{ display:none; }
  .hero__meta{ flex-direction:column; gap:.3rem; }
}