:root{
  --bg:#0f1115;
  --bg2:#141822;
  --card:#171c27;
  --text:#e8ecf3;
  --muted:#b7c0d6;
  --line:rgba(255,255,255,.10);
  --gold:#d8b46a;
  --shadow: 0 14px 40px rgba(0,0,0,.35);
  --radius: 18px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: linear-gradient(180deg, #0b0d12 0%, #0f1115 35%, #0b0d12 100%);
  color:var(--text);
}

img{max-width:100%; display:block}
a{color:inherit; text-decoration:none}
.container{width:min(1120px, 92%); margin:0 auto}

#topo{
  position: absolute;
  top: 0;
  left: 0;
}

/* Header */
.header{
  position:sticky; top:0; z-index:30;
  backdrop-filter: blur(10px);
  background: rgba(15,17,21,.65);
  border-bottom: 1px solid var(--line);
}
.header__inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 0;
}
.brand{display:flex; flex-direction:column; gap:2px}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
}

.brand__logo{
  height:34px;   /* ajuste aqui */
  width:auto;
  display:block;
}

.brand__text{
  display:flex;
  flex-direction:column;
  gap:2px;
}
.brand__mark{font-weight:800; letter-spacing:.18em}
.brand__sub{font-size:12px; color:var(--muted); letter-spacing:.12em}

.nav{display:flex; gap:18px; align-items:center}
.nav__link{
  font-size:14px;
  color:var(--muted);
  padding:10px 10px;
  border-radius:12px;
  transition: .2s ease;
}
.nav__link:hover{color:var(--text); background:rgba(255,255,255,.06)}

.navbtn{
  display:none;
  width:44px; height:44px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  border-radius:14px;
  cursor:pointer;
}
.navbtn span{
  display:block; height:2px; width:18px; margin:4px auto;
  background:var(--text);
  opacity:.9;
}

/* Hero */
.hero{
  position:relative;
  min-height: 72vh;
  display:grid;
  align-items:center;
  overflow:hidden;
}
.hero__bg{
  position:absolute; inset:0;
  background:
    radial-gradient(1200px 600px at 20% 15%, rgba(216,180,106,.18), transparent 55%),
    radial-gradient(900px 500px at 80% 30%, rgba(110,160,255,.12), transparent 60%),
    linear-gradient(180deg, rgba(0,0,0,.35), rgba(0,0,0,.75)),
    url("https://picsum.photos/seed/fantasybg/2400/1400");
  background-size: cover;
  background-position:center;
  filter:saturate(1.05);
  transform: scale(1.03);
}
.hero__inner{
  position:relative;
  padding: 78px 0 70px;
  text-align:center;
}
.kicker{
  margin:0 0 12px;
  color:var(--gold);
  letter-spacing:.14em;
  text-transform:uppercase;
  font-size:12px;
}
.hero__title{
  margin:0;
  font-size: clamp(34px, 4.4vw, 56px);
  line-height:1.05;
  text-shadow: 0 12px 40px rgba(0,0,0,.45);
}
.hero__by{
  margin: 10px 0 0;
  color: var(--muted);
}
.hero__cta{margin-top:22px; display:flex; gap:12px; justify-content:center; flex-wrap:wrap}

/* Sections */
.section{padding: 64px 0}
.section--alt{background: rgba(255,255,255,.02); border-top:1px solid var(--line); border-bottom:1px solid var(--line)}
.section--dark{background: linear-gradient(180deg, #0b0d12 0%, #0f1115 100%); border-top:1px solid var(--line); border-bottom:1px solid var(--line)}
.section--welcome{padding-top:44px}

.section__head{margin-bottom:24px}
.h2{margin:0 0 10px; font-size: 28px}
.h3{margin:0 0 10px; font-size: 18px}
.lead{margin:0; color:var(--muted); font-size: 16px; line-height:1.7}
.muted{color:var(--muted); line-height:1.7}
.quote{color:var(--text); opacity:.95; line-height:1.7}

/* Cards / grids */
.grid3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.card{
  background: rgba(255,255,255,.03);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.card--soft{background: rgba(23,28,39,.55)}

.stats{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.stat{
  background: rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  text-align:center;
}
.stat__num{
  font-weight:800;
  font-size: 34px;
  letter-spacing:.02em;
}
.stat__label{color:var(--muted); margin-top:6px; font-size:13px}

.cards{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.book{
  border-radius: var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  box-shadow: var(--shadow);
}
.book__cover img{aspect-ratio: 3/4; object-fit:cover}
.book__body{padding: 14px}
.book__actions{display:flex; gap:10px; margin-top:10px; flex-wrap:wrap}

/* Authors */
.authors{display:grid; grid-template-columns: 1fr; gap: 12px; margin-bottom: 22px}
.author{
  display:flex; gap: 14px; align-items:center;
  width:100%;
  background: rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  text-align:left;
}
.author:hover{background: rgba(255,255,255,.05)}
.author img{
  width: 86px; height:86px; border-radius: 18px;
  object-fit: cover; border:1px solid var(--line);
}
.author__name{font-weight:800; color:var(--gold)}
.author__role{color:var(--gold); font-size:13px; margin-top:2px}
.author__bio{color:var(--muted); font-size:13px; margin-top:6px; line-height:1.6}

.testimonials{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.testimonial{
  background: rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}
.testimonial__quote{line-height:1.7}
.testimonial__by{color:var(--muted); font-size:13px; margin-top:8px}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid rgba(216,180,106,.45);
  background: rgba(216,180,106,.12);
  color: var(--text);
  transition: .2s ease;
  cursor:pointer;
  font-weight:650;
}
.btn:hover{transform: translateY(-1px); background: rgba(216,180,106,.18)}
.btn--ghost{
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
}
.btn--ghost:hover{background: rgba(255,255,255,.06)}
.btn--small{padding: 10px 12px; border-radius: 12px; font-size: 13px}

/* Contact */
.contact{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
.contact__item{
  background: rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
}
.contact__label{color:var(--muted); font-size:12px; letter-spacing:.08em; text-transform:uppercase}
.contact__value{margin-top:6px; display:block; line-height:1.6}

.form{
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  background: rgba(255,255,255,.03);
}
.form__row{display:grid; grid-template-columns: 1fr 1fr; gap: 12px}
.field span{display:block; font-size:12px; color:var(--muted); margin-bottom:6px}
.field input, .field textarea{
  width:100%;
  padding: 12px 12px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(15,17,21,.65);
  color: var(--text);
  outline:none;
}
.field input:focus, .field textarea:focus{border-color: rgba(216,180,106,.55)}
.form__actions{display:flex; align-items:center; gap: 12px; margin-top: 12px; flex-wrap:wrap}
.form__hint{margin:0; color:var(--muted); font-size:13px}

/* Footer */
.footer{
  border-top:1px solid var(--line);
  padding: 22px 0;
  background: rgba(0,0,0,.25);
}
.footer__inner{display:flex; gap: 14px; justify-content:space-between; align-items:center; flex-wrap:wrap}
.to-top{color:var(--muted)}
.to-top:hover{color:var(--text)}

.footer__inner--logo{
  display:grid;
  grid-template-columns: auto 1fr auto;
  align-items:center;
  gap:16px;
}

.footer__logo{
  height:32px;   /* ajuste aqui */
  width:auto;
  opacity:.85;
}

.footer__copy{
  margin:0;
  color:var(--muted);
  font-size:14px;
}

/* Mobile */
@media (max-width: 720px){
  .footer__inner--logo{
    grid-template-columns: 1fr;
    text-align:center;
  }

  .footer__logo{
    margin: 0 auto;
  }

  .to-top{
    justify-self:center;
  }
}

/* Responsive */
@media (max-width: 920px){
  .grid3{grid-template-columns: 1fr}
  .stats{grid-template-columns: repeat(2, 1fr)}
  .cards{grid-template-columns: 1fr}
  .testimonials{grid-template-columns: 1fr}
  .contact{grid-template-columns: 1fr}
  .form__row{grid-template-columns: 1fr}
  .navbtn{display:inline-block}
  .nav{
    position:absolute; right:4%; top:64px;
    width: min(320px, 92%);
    background: rgba(15,17,21,.95);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 10px;
    display:none;
    flex-direction:column;
    gap: 6px;
  }
  .nav.nav--open{display:flex}
}

/* ===== Volume page ===== */
.backlink{
  display:inline-block;
  color: var(--muted);
  margin-bottom: 14px;
}
.backlink:hover{color: var(--text)}

.volume__head{margin-bottom: 18px}
.volume__title{
  margin:0;
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1.12;
}

.volume{
  display:grid;
  grid-template-columns: 380px 1fr;
  gap: 18px;
  align-items:start;
}

.volume__cover{
  border-radius: var(--radius);
  overflow:hidden;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  box-shadow: var(--shadow);
}
.volume__cover img{width:100%; height:auto}

.volume__body{
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  box-shadow: var(--shadow);
  padding: 18px;
}

.volume__actions{display:flex; gap:10px; flex-wrap:wrap; margin-bottom: 10px}

.specs{
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.7;
}
.dot{margin: 0 8px; opacity:.65}

.volume__excerpt{
  padding: 14px;
  border-radius: var(--radius);
  border:1px dashed rgba(255,255,255,.18);
  background: rgba(0,0,0,.15);
  margin-bottom: 16px;
}

.block{margin-top: 18px}
.volume__foot{margin-top: 18px}

/* Responsive */
@media (max-width: 920px){
  .volume{grid-template-columns: 1fr}
}