/* ===========================================================
   VEXUSbook — complemento ao sistema (styles-avancado.css)
   =========================================================== */

/* ---------- capa do livro (réplica em CSS) ---------- */
.bookwrap{ display:flex; justify-content:center; perspective:1600px; }
.book{
  position:relative; width:min(340px,86vw); aspect-ratio:16/23;
  border-radius:4px 10px 10px 4px; overflow:hidden; flex:none;
  background:#0a2140; color:#fff;
  display:flex; flex-direction:column; padding:26px 24px 22px 30px;
  box-shadow:-2px 0 0 rgba(255,255,255,.07) inset, 26px 34px 70px -22px rgba(0,0,0,.85), 0 0 0 1px rgba(255,255,255,.08);
  transform:rotateY(-11deg) rotateX(2deg); transform-origin:left center;
  transition:transform .7s cubic-bezier(.22,1,.36,1);
}
.book:hover{ transform:rotateY(-4deg) rotateX(1deg) translateY(-6px); }
.book__photo{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:0; }
.book__wash{ position:absolute; inset:0; z-index:1; background:linear-gradient(118deg,rgba(10,33,64,.82) 0%,rgba(14,43,80,.78) 50%,rgba(21,64,111,.68) 100%); }
.book__wash2{ position:absolute; inset:0; z-index:1; background:linear-gradient(to bottom,rgba(10,33,64,.45) 0%,rgba(10,33,64,0) 26%,rgba(10,33,64,0) 60%,rgba(10,33,64,.62) 100%); }
.book__spine{ position:absolute; top:0; bottom:0; left:0; width:15px; z-index:4; background:linear-gradient(90deg,rgba(0,0,0,.7) 0,rgba(0,0,0,.3) 40%,rgba(255,255,255,.1) 72%,rgba(0,0,0,.24) 100%); }
.book__top,.book__mid,.book__bot,.book__foot{ position:relative; z-index:5; }
.book__top{ display:flex; justify-content:space-between; align-items:center; flex:none; }
.book__top img{ width:104px; height:auto; filter:brightness(0) invert(1); }
.book__mid{ margin-top:auto; }
.book__kicker{ font-family:var(--f-mono); font-size:8.5px; font-weight:700; letter-spacing:.3em; text-transform:uppercase; color:#4fb0d6; margin-bottom:13px; }
.book__title{ font-family:var(--f-display); font-weight:700; font-size:clamp(28px,7.6vw,36px); line-height:1; letter-spacing:-.03em; color:#fff; margin:0; }
.book__sub{ font-style:italic; font-weight:500; font-size:15px; color:#eaf2fb; margin-top:15px; }
.book__bot{ margin-top:auto; padding-top:24px; }
.book__lbl{ font-family:var(--f-mono); font-size:8px; font-weight:700; letter-spacing:.26em; text-transform:uppercase; color:#4fb0d6; margin-bottom:9px; }
.book__names{ display:flex; flex-direction:column; gap:5px; font-size:11.5px; color:#e6edf4; font-weight:500; }
.book__rule{ height:1px; background:rgba(255,255,255,.16); margin:16px 0 11px; }
.book__foot{ display:flex; justify-content:space-between; align-items:center; gap:10px; }
.book__foot span:first-child{ font-family:var(--f-mono); font-size:8px; font-weight:700; letter-spacing:.2em; text-transform:uppercase; color:#8ba4c0; }
.book__foot span:last-child{ font-family:var(--f-display); font-size:10px; font-weight:700; color:#fff; letter-spacing:.16em; }

.hero--book .hero__grid{ align-items:center; }
/* menos respiro entre o hero e a primeira seção */
.hero--book{ padding-bottom:clamp(8px,1.2vw,20px); }
.hero--book + .section{ padding-top:clamp(20px,2.4vw,38px); }


/* ---------- flipbook (capa interativa) ---------- */
.flip{
  position:relative; width:min(360px,88vw); aspect-ratio:16/23; flex:none;
  perspective:2200px; perspective-origin:38% 50%;
  transform-style:preserve-3d;
  transform:rotateY(-16deg) rotateX(4deg) rotateZ(-.8deg);
  transition:transform .8s cubic-bezier(.22,1,.36,1);
}
.flip:hover{ transform:rotateY(-8deg) rotateX(2deg) rotateZ(-.3deg) translateY(-6px); }
/* bloco de folhas: dá espessura real ao livro */
.flip__stack{
  position:absolute; top:5px; bottom:5px; left:14px; right:-12px; z-index:0;
  border-radius:2px 7px 7px 2px;
  background:linear-gradient(90deg,#efece4 0,#faf8f4 62%,#e6e2d8 100%);
  box-shadow:inset -1px 0 0 rgba(0,0,0,.14), 0 1px 0 rgba(0,0,0,.2);
}
/* corte lateral com as folhas */
.flip__stack::after{
  content:""; position:absolute; top:0; bottom:0; right:0; width:13px; border-radius:0 7px 7px 0;
  background:repeating-linear-gradient(90deg,rgba(255,255,255,.95) 0 1.4px,rgba(196,191,180,.85) 1.4px 2.6px);
  box-shadow:inset -2px 0 4px rgba(0,0,0,.22);
}
/* corte inferior (pé do livro) */
.flip__edge{
  position:absolute; left:16px; right:-12px; bottom:-7px; height:9px; z-index:1;
  border-radius:0 0 7px 3px;
  background:repeating-linear-gradient(0deg,rgba(255,255,255,.9) 0 1.3px,rgba(190,185,174,.9) 1.3px 2.5px);
  box-shadow:0 2px 5px rgba(0,0,0,.4), inset 0 -2px 4px rgba(0,0,0,.2);
}
/* sombra projetada no chão */
.flip__shadow{
  position:absolute; left:4%; right:-8%; bottom:-30px; height:52px; z-index:0;
  background:radial-gradient(52% 100% at 44% 0%, rgba(0,0,0,.72), rgba(0,0,0,0) 74%);
  filter:blur(11px); pointer-events:none;
}
.flip__page{
  position:absolute; inset:0; transform-origin:left center; backface-visibility:hidden;
  border-radius:3px 9px 9px 3px; overflow:hidden; background:#fff; cursor:pointer;
  box-shadow:22px 30px 64px -24px rgba(0,0,0,.8), 0 0 0 1px rgba(255,255,255,.08);
  opacity:1;
  transition:transform .8s cubic-bezier(.32,.06,.22,1), opacity .01s linear 0s;
}
.flip__page.is-flipped{ transform:rotateY(-180deg); opacity:0; transition:transform .8s cubic-bezier(.32,.06,.22,1), opacity .01s linear .76s; }
.flip__page::after{
  content:""; position:absolute; inset:0; z-index:9; pointer-events:none;
  background:
    linear-gradient(90deg,rgba(0,0,0,.42) 0,rgba(0,0,0,.16) 7px,rgba(0,0,0,.04) 20px,rgba(0,0,0,0) 40px),
    linear-gradient(255deg,rgba(255,255,255,.14),rgba(255,255,255,0) 46%);
}
.flip__page--cover{ box-shadow:24px 32px 70px -22px rgba(0,0,0,.88), 0 0 0 1px rgba(255,255,255,.1); }

/* página interna (papel) */
.pg{ position:absolute; inset:0; display:flex; flex-direction:column; padding:22px 20px 20px 28px; color:#2c343c; background:#fff; }
.pg__top{ display:flex; justify-content:space-between; align-items:baseline; font-family:var(--f-mono); font-size:7px; letter-spacing:.14em; text-transform:uppercase; color:#9aa0a6; border-bottom:1px solid #ececec; padding-bottom:7px; margin-bottom:14px; flex:none; }
.pg__top b{ color:#1e6fa8; font-weight:700; }
.pg__h{ font-family:var(--f-display); font-weight:700; font-size:20px; line-height:1.06; letter-spacing:-.02em; color:#13344E; margin:0 0 6px; display:flex; align-items:flex-start; gap:9px; }
.pg__h span.bar{ width:7px; height:19px; border-radius:2px; background:#1e6fa8; flex:none; margin-top:1px; }
.pg__kicker{ font-family:var(--f-mono); font-size:7.5px; font-weight:700; letter-spacing:.2em; text-transform:uppercase; color:#1e6fa8; margin-bottom:9px; }
.pg__lead{ font-size:9.5px; line-height:1.55; color:#3a444d; margin:0 0 10px; }
.pg__rule{ height:1px; background:#ececec; margin:11px 0 13px; flex:none; }
.pg__img{ flex:1; min-height:0; display:flex; align-items:center; justify-content:center; background:#f6f8fa; border-radius:5px; overflow:hidden; border:1px solid #eef1f4; }
.pg__img img{ width:100%; height:100%; object-fit:contain; display:block; }
.pg__cap{ font-size:7px; line-height:1.4; color:#9aa0a6; margin-top:7px; flex:none; }
.pg__foot{ margin-top:auto; padding-top:9px; display:flex; justify-content:space-between; font-family:var(--f-mono); font-size:6.5px; letter-spacing:.12em; text-transform:uppercase; color:#b6bcc2; border-top:1px solid #f0f2f4; flex:none; }
/* sumário */
.pg__toc{ display:grid; grid-template-columns:1fr 1fr; gap:3px 13px; }
.pg__toc a,.pg__toc div{ display:flex; align-items:center; gap:6px; text-decoration:none; }
.pg__toc i{ width:14px; height:14px; border-radius:4px; background:#eaf3fa; color:#1e6fa8; font-family:var(--f-display); font-style:normal; font-weight:700; font-size:7px; display:grid; place-items:center; flex:none; }
.pg__toc span{ font-size:7.5px; line-height:1.25; color:#13344E; font-weight:600; }
/* bullets da introdução */
.pg__bul{ display:flex; flex-direction:column; gap:9px; }
.pg__bul > div{ display:flex; gap:8px; }
.pg__bul i{ width:12px; height:12px; border-radius:50%; background:#eaf3fa; flex:none; margin-top:1px; position:relative; }
.pg__bul i::after{ content:""; position:absolute; inset:4px; border-radius:50%; background:#1e6fa8; }
.pg__bul b{ display:block; font-size:9px; color:#13344E; font-weight:700; margin-bottom:2px; }
.pg__bul p{ font-size:8px; line-height:1.45; color:#5c666f; margin:0; }
.pg__note{ margin-top:auto; padding:9px 11px; border-radius:6px; background:#f4f8fb; border:1px solid #e6eef5; font-size:7.5px; line-height:1.45; color:#5c666f; flex:none; }

/* páginas de abertura de capítulo (igual ao e-book) */
.pg--cap{ padding:26px 22px 20px 30px; }
.pg--cap .pg__logo{ width:58px; height:auto; align-self:flex-start; margin-bottom:12px; opacity:.85; flex:none; }
.pg--cap .pg__capnum{ font-family:var(--f-mono); font-size:8px; font-weight:700; letter-spacing:.26em; text-transform:uppercase; color:#1e6fa8; margin-bottom:8px; }
.pg--cap h1, .pg--cap .pg__title{ font-family:var(--f-display); font-weight:700; font-size:22px; line-height:1.04; letter-spacing:-.025em; color:#13344E; margin:0 0 11px; }
.pg--cap .pg__abs{ font-size:9px; line-height:1.55; color:#5c666f; margin:0; }
.pg__inhere{ font-family:var(--f-mono); font-size:7px; font-weight:700; letter-spacing:.2em; text-transform:uppercase; color:#9aa0a6; margin-bottom:9px; }
.pg__secs{ display:flex; flex-direction:column; gap:5px; }
.pg__secs > div{ display:flex; align-items:flex-start; gap:8px; }
.pg__secs i{ width:13px; height:13px; border-radius:4px; background:#eaf3fa; color:#1e6fa8; font-family:var(--f-display); font-style:normal; font-weight:700; font-size:6.5px; display:grid; place-items:center; flex:none; margin-top:.5px; }
.pg__secs span{ font-size:7.8px; line-height:1.3; color:#3a444d; }
.pg--cap .pg__mark{ width:44px; height:3px; border-radius:2px; background:#1e6fa8; margin:16px 0 18px; flex:none; }

/* navegação */
.flip__nav{ display:flex; align-items:center; justify-content:center; gap:14px; margin-top:26px; }
.flip__btn{
  width:38px; height:38px; border-radius:99px; border:1px solid var(--line-2); background:var(--bg-2);
  color:var(--ink-dim); display:grid; place-items:center; cursor:pointer;
  transition:background .2s, border-color .2s, color .2s, opacity .2s;
}
.flip__btn:hover:not(:disabled){ background:var(--accent); border-color:var(--accent); color:#03101e; }
.flip__btn:disabled{ opacity:.3; cursor:default; }
.flip__count{ font-family:var(--f-mono); font-size:12px; letter-spacing:.08em; color:var(--ink-faint); min-width:92px; text-align:center; }
@media (max-width:640px){
  .flip{ width:min(300px,82vw); transform:rotateY(-8deg) rotateX(2deg); }
  .flip:hover{ transform:rotateY(-5deg) rotateX(1deg) translateY(-3px); }
  .pg{ padding:18px 15px 16px 22px; }
  .pg__h{ font-size:17px; }
}

/* ---------- sumário ---------- */
.toc{ display:grid; gap:18px; margin-top:44px; }
.toc__block{ border:1px solid var(--line); border-radius:var(--radius); background:linear-gradient(180deg,var(--bg-2),var(--bg)); padding:26px 28px; }
.toc__head{ display:flex; align-items:center; gap:12px; margin-bottom:18px; padding-bottom:16px; border-bottom:1px solid var(--line); }
.toc__bar{ width:9px; height:26px; border-radius:3px; background:var(--accent); flex:none; }
.toc__block--b .toc__bar{ background:var(--cyan); }
.toc__block--c .toc__bar{ background:var(--accent-2); }
.toc__title{ font-family:var(--f-display); font-size:19px; letter-spacing:-.02em; color:var(--ink); font-weight:600; }
.toc__count{ margin-left:auto; font-family:var(--f-mono); font-size:11.5px; letter-spacing:.06em; color:var(--ink-faint); text-transform:uppercase; white-space:nowrap; }
.toc__list{ display:grid; grid-template-columns:repeat(auto-fit,minmax(255px,1fr)); gap:10px 26px; }
.toc__row{ display:flex; align-items:flex-start; gap:12px; padding:5px 0; }
.toc__n{
  width:24px; height:24px; border-radius:7px; flex:none; display:grid; place-items:center;
  font-family:var(--f-display); font-weight:600; font-size:11.5px;
  background:var(--accent-soft); color:var(--accent-2); border:1px solid var(--line-2);
}
.toc__block--b .toc__n{ background:var(--cyan-soft); color:var(--cyan); }
.toc__row span:last-child{ font-size:15px; line-height:1.4; color:var(--ink-dim); }

/* ---------- índice editorial dos capítulos ---------- */
.idx{ margin-top:clamp(36px,4vw,56px); columns:2; column-gap:clamp(34px,4vw,64px); }
.idx__grp{ break-inside:avoid; margin-bottom:17px; }
.idx__lbl{ display:flex; align-items:center; gap:12px; margin-bottom:6px; }
.idx__bar{ width:8px; height:8px; border-radius:2px; background:var(--accent); transform:rotate(45deg); flex:none; }
.idx__grp--b .idx__bar{ background:var(--cyan); }
.idx__name{ font-family:var(--f-mono); font-size:11.5px; font-weight:700; letter-spacing:.2em; text-transform:uppercase; color:var(--accent-2); white-space:nowrap; }
.idx__grp--b .idx__name{ color:var(--cyan); }
.idx__rule{ flex:1; height:1px; background:var(--line); min-width:14px; }
.idx__range{ font-family:var(--f-mono); font-size:11px; letter-spacing:.1em; color:var(--ink-faint); flex:none; }
.idx__row{
  display:flex; align-items:baseline; gap:16px; padding:13px 2px 13px 0;
  border-bottom:1px solid var(--line); position:relative;
  transition:padding-left .3s ease;
}
.idx__row::before{
  content:""; position:absolute; left:0; right:0; bottom:-1px; height:1px;
  background:var(--accent); transform:scaleX(0); transform-origin:left;
  transition:transform .45s cubic-bezier(.22,1,.36,1);
}
.idx__grp--b .idx__row::before{ background:var(--cyan); }
.idx__row:hover{ padding-left:8px; }
.idx__row:hover::before{ transform:scaleX(1); }
.idx__n{
  font-family:var(--f-display); font-size:clamp(28px,3.2vw,38px); font-weight:600;
  letter-spacing:-.04em; line-height:.85; color:transparent; flex:none; width:2.1em;
  -webkit-text-stroke:1px var(--line-2); transition:-webkit-text-stroke-color .3s ease, color .3s ease;
}
.idx__row:hover .idx__n{ -webkit-text-stroke-color:transparent; color:var(--accent-2); }
.idx__grp--b .idx__row:hover .idx__n{ color:var(--cyan); }
.idx__t{ font-size:16px; line-height:1.4; color:var(--ink-dim); text-wrap:pretty; transition:color .3s ease; }
.idx__row:hover .idx__t{ color:var(--ink); }
@media (max-width:900px){
  .idx{ columns:1; }
  .idx__grp{ margin-bottom:13px; }
  .idx__n{ font-size:26px; width:1.9em; }
  .idx__t{ font-size:15px; }
}

/* ---------- 3 pilares ---------- */
.pillars{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-top:44px; }
.pillar{ border:1px solid var(--line); border-radius:var(--radius); background:var(--bg-2); padding:28px 26px; }
.pillar__ic{ width:38px; height:38px; border-radius:11px; display:grid; place-items:center; background:var(--accent-soft); color:var(--accent-2); margin-bottom:18px; }
.pillar h3{ font-size:18px; margin:0 0 9px; letter-spacing:-.01em; }
.pillar p{ font-size:15px; color:var(--ink-dim); margin:0; line-height:1.55; }

/* ---------- app V360 ---------- */
.v360{ display:grid; grid-template-columns:minmax(0,1fr) minmax(0,.9fr); gap:clamp(26px,3.2vw,50px); align-items:center; margin-top:40px; }
.v360__note{ margin-top:22px; padding:18px 22px; border-radius:12px; border:1px solid var(--line-2); background:var(--accent-soft); font-size:15px; color:var(--ink); line-height:1.55; }
.v360__shots{ display:flex; justify-content:center; }
.v360__shot{ position:relative; display:block; width:min(300px,76vw); aspect-ratio:437/914; border-radius:14px; overflow:hidden; cursor:pointer; background:#000; }
.v360__shot img{ display:block; width:100%; height:100%; object-fit:cover; }
.v360__shot iframe{ position:absolute; inset:0; width:100%; height:100%; border:0; z-index:3; }
.v360__shot.is-loaded .v360__play{ display:none; }
.v360__play{ position:absolute; inset:0; display:grid; place-items:center; color:#fff; background:linear-gradient(180deg,rgba(3,12,24,.1) 40%,rgba(3,12,24,.5)); transition:background .25s ease; }
.v360__shot:hover .v360__play{ background:linear-gradient(180deg,rgba(3,12,24,.05) 40%,rgba(3,12,24,.4)); }
.v360__play svg{ width:66px; height:66px; padding:18px; border-radius:50%; background:rgba(4,14,28,.66); border:1px solid var(--line-2); backdrop-filter:blur(5px); transition:transform .25s ease; }
.v360__shot:hover .v360__play svg{ transform:scale(1.07); }

@media (max-width:980px){
  .pillars{ grid-template-columns:1fr; }
  .v360{ grid-template-columns:1fr; }
}
@media (max-width:640px){
  .book{ width:min(290px,80vw); padding:20px 18px 18px 24px; transform:none; }
  .book:hover{ transform:translateY(-4px); }
  .book__top img{ width:86px; }
  .toc__block{ padding:22px 20px; }
  .toc__list{ grid-template-columns:1fr; }
}

/* amostra: páginas inteiras do livro (2-up, para a página caber legível) */
.carousel--book .c-card{ flex:0 0 calc((100% - 22px) / 2); }
.carousel--book .carousel__track{ align-items:stretch; gap:22px; }
.c-card--pg{ position:relative; aspect-ratio:16/23; background:#fff; overflow:hidden; border-radius:3px 9px 9px 3px; }
.c-card--pg .pg{ padding:22px 18px 16px 24px; }
.c-card--pg .pg__top,.c-card--pg .pg__h,.c-card--pg .pg__lead,.c-card--pg .pg__cap,.c-card--pg .pg__foot{ min-height:0; flex:none; }
.c-card--pg .pg__h{ font-size:18px; }
.c-card--pg .pg__lead{ font-size:10px; line-height:1.5; margin-bottom:9px; display:-webkit-box; -webkit-line-clamp:5; -webkit-box-orient:vertical; overflow:hidden; }
.c-card--pg .pg__img{ background:#fff; border-color:#f0f2f4; flex:1 1 auto; min-height:0; padding:6px; }
.c-card--pg .pg__img img{ object-fit:contain; }
.c-card--pg::after{ content:""; position:absolute; top:0; bottom:0; left:0; width:10px; background:linear-gradient(90deg,rgba(0,0,0,.14),rgba(0,0,0,0)); pointer-events:none; z-index:2; }
@media (max-width:760px){
  .carousel--book .c-card{ flex:0 0 100%; }
  .carousel--book .carousel__track{ gap:18px; }
  .c-card--pg{ max-width:340px; margin-inline:auto; }
  .c-card--pg .pg{ padding:18px 14px 14px 20px; }
  .c-card--pg .pg__h{ font-size:17px; }
  .c-card--pg .pg__lead{ font-size:9.4px; -webkit-line-clamp:4; }
}

/* dois caminhos de pagamento */
.pay{ display:flex; flex-direction:column; gap:10px; margin-top:4px; }
.pay__btn{ flex-direction:column; gap:2px; line-height:1.25; padding-block:14px; height:auto; text-align:center; }
.pay__btn b{ font-weight:600; letter-spacing:.01em; text-transform:none; font-size:16px; }
.pay__btn small{ font-family:var(--f-mono); font-size:11.5px; letter-spacing:.03em; opacity:.85; text-transform:none; }
.pay__btn--pix b{ color:var(--ink); }
.pay__btn--pix small{ color:var(--accent); opacity:1; }

/* CTA principal do hero, mais chamativo */
.btn--pop{
  position:relative; overflow:hidden; flex-direction:column; gap:3px; height:auto;
  padding:16px 34px; align-items:center; line-height:1.15;
  box-shadow:0 0 0 1px color-mix(in oklab, var(--accent) 60%, transparent),
             0 14px 34px -10px color-mix(in oklab, var(--accent) 62%, transparent),
             0 0 46px -14px color-mix(in oklab, var(--accent) 80%, transparent);
  animation:popGlow 3.6s ease-in-out infinite;
}
.btn--pop > span{ font-size:17px; letter-spacing:.02em; }
.btn--pop .btn__sub{
  font-family:var(--f-mono); font-style:normal; font-size:11.5px; letter-spacing:.06em;
  text-transform:none; color:color-mix(in oklab, #03101e 74%, transparent);
}
.btn--pop::after{
  content:""; position:absolute; top:0; bottom:0; left:-60%; width:38%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg); animation:popShine 3.6s ease-in-out infinite;
}
@keyframes popGlow{
  0%,100%{ box-shadow:0 0 0 1px color-mix(in oklab, var(--accent) 60%, transparent), 0 14px 34px -10px color-mix(in oklab, var(--accent) 62%, transparent), 0 0 46px -14px color-mix(in oklab, var(--accent) 80%, transparent); }
  50%{ box-shadow:0 0 0 1px color-mix(in oklab, var(--accent) 85%, transparent), 0 16px 40px -8px color-mix(in oklab, var(--accent) 78%, transparent), 0 0 62px -10px color-mix(in oklab, var(--accent) 95%, transparent); }
}
@keyframes popShine{ 0%{ left:-60%; } 55%,100%{ left:130%; } }
.btn--pop:hover{ transform:translateY(-2px); }
@media (prefers-reduced-motion:reduce){ .btn--pop,.btn--pop::after{ animation:none; } .btn--pop::after{ display:none; } }

/* mobile: controles do folheador com alvo de toque adequado */
@media (max-width:760px){
  .flip__btn{ width:46px; height:46px; }
  .flip__nav{ gap:18px; margin-top:22px; }
  .flip__count{ font-size:13px; min-width:104px; }
  .pay__btn{ padding-block:15px; }
  .pay__btn small{ font-size:12px; }
}

/* ---------- faixas alternadas no azul da capa ---------- */
.band-navy{ position:relative; background:#0a2140; }
/* emenda em degradê: o azul nasce e morre dentro da própria faixa */
.band-navy::before{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:
    linear-gradient(180deg, var(--bg) 0, color-mix(in oklab, var(--bg) 55%, transparent) clamp(60px,9vw,120px), transparent clamp(150px,20vw,260px)),
    linear-gradient(0deg, var(--bg) 0, color-mix(in oklab, var(--bg) 55%, transparent) clamp(60px,9vw,120px), transparent clamp(150px,20vw,260px)),
    radial-gradient(120% 60% at 50% 50%, rgba(255,255,255,.05), rgba(255,255,255,0) 68%);
}
.band-navy > *{ position:relative; z-index:1; }
.band-navy .grid-bg{ opacity:.5; }
.band-navy .card,.band-navy .price-card,.band-navy .v360__txt{ background:color-mix(in oklab, #0a2140 76%, #000); }
/* painel do FAQ: fundo único com as bordas em degradê */
.band-navy .faq{ position:relative; isolation:isolate; }
.band-navy .faq::before{
  content:""; position:absolute; inset:-6px -34px; z-index:-1; pointer-events:none;
  background:color-mix(in oklab, #0a2140 76%, #000);
  --fadeY:linear-gradient(180deg, transparent 0, #000 84px, #000 calc(100% - 84px), transparent 100%);
  --fadeX:linear-gradient(90deg, transparent 0, #000 96px, #000 calc(100% - 96px), transparent 100%);
  -webkit-mask-image:var(--fadeY), var(--fadeX);
  -webkit-mask-composite:source-in;
  mask-image:var(--fadeY), var(--fadeX);
  mask-composite:intersect;
}
.band-navy .faq__item{ background:transparent; }
.band-navy .faq__item:last-child{ border-bottom-color:transparent; }
.band-navy .idx__row{ border-color:rgba(255,255,255,.12); }
.band-navy .faq__item{ border-color:rgba(255,255,255,.1); }
.band-navy .idx__rule{ background:rgba(255,255,255,.12); }
.band-navy .idx__n{ -webkit-text-stroke-color:rgba(255,255,255,.2); }

/* enquadramento das fotos dos autores (só nesta página) */
.profs .prof__mono--yan{ object-position:center 6%; }
.profs .prof__mono--pedro{ object-position:center 8%; }

/* ---------- ajustes finos de mobile ---------- */
@media (max-width:640px){
  .btn--pop{ width:100%; padding:15px 20px; }
  .btn--pop > span{ font-size:16px; }
  .pay__btn{ min-height:56px; }
  .pay__btn b{ font-size:15px; }
  .flip__ctrl{ min-width:44px; min-height:44px; }
  .idx__row{ padding-block:11px; }
}

/* ---------- price card do VEXUSbook (classes próprias) ---------- */
.price-card__eyebrow{ display:block; font-family:var(--f-mono); font-size:11px; letter-spacing:.2em; text-transform:uppercase; color:var(--accent-2); margin:0 0 10px; }
.price-card__price{ font-family:var(--f-display); font-weight:600; font-size:clamp(40px,5vw,58px); letter-spacing:-0.03em; line-height:1; color:var(--ink); }
.price-card__price span{ font-size:24px; color:var(--ink-dim); font-weight:500; }
.price-card__terms{ color:var(--ink-dim); font-size:14.5px; margin:10px 0 18px; }
.price-card__micro{ text-align:center; font-size:12.5px; line-height:1.5; color:var(--ink-faint); margin:14px 0 0; text-wrap:pretty; }

/* ---------- EM BREVE — pré-lançamento ---------- */
.soon-tag{display:inline-flex;align-items:center;gap:8px;width:max-content;font-family:var(--f-mono);font-size:11.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;line-height:1;white-space:nowrap;padding:8px 14px 8px 12px;border-radius:99px;background:var(--accent-deep);color:#fff;box-shadow:0 10px 26px -12px var(--glow),inset 0 1px 0 rgba(255,255,255,.22)}
.soon-tag::before{content:"";flex:none;width:7px;height:7px;border-radius:50%;background:#fff;animation:soonPulse 1.8s ease-out infinite}
@keyframes soonPulse{0%{box-shadow:0 0 0 0 rgba(255,255,255,.7)}70%,100%{box-shadow:0 0 0 7px rgba(255,255,255,0)}}
@media (prefers-reduced-motion:reduce){.soon-tag::before{animation:none}}
.soon-tag--hero{display:flex;margin-bottom:16px;font-size:13px;padding:10px 18px 10px 14px}
.nav a:has(.soon-tag){position:relative}
.nav .soon-tag{position:absolute;top:-13px;right:-16px;font-size:9px;letter-spacing:.1em;padding:3px 7px;box-shadow:none}
.nav .soon-tag::before{display:none}
.nav.open .soon-tag{position:static;display:inline-flex;margin-left:10px;vertical-align:middle}
.btn.is-soon{background:color-mix(in oklab, var(--accent) 6%, transparent);color:var(--ink-dim);border:1px dashed color-mix(in oklab, var(--accent-2) 45%, transparent);box-shadow:none;cursor:default;pointer-events:none;transform:none}
.btn.is-soon::before,.btn.is-soon::after{display:none}
.btn.is-soon b{color:var(--ink)}
.btn.is-soon small{color:var(--ink-dim);opacity:1}