:root{
  --bg:#f6f8fc;
  --card:#ffffff;
  --text:#0b1220;
  --muted:#4b5563;
  --brand:#0a3d62;
  --brand2:#1d4ed8;
  --shadow: 0 10px 28px rgba(0,0,0,.08);
  --radius: 14px;
}

*{ box-sizing:border-box; }
body{ margin:0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial; background:var(--bg); color:var(--text); }
.wrap{ width:min(1100px, calc(100% - 28px)); margin:0 auto; }

/* HERO (sem logo, para ser uma aba dentro do site principal) */
.hero{ position:relative; height:260px; overflow:hidden; }
.hero__bg{
  position:absolute; inset:0;
  background-size:cover;
  background-position:center;
  filter:saturate(1.05);
  transform: scale(1.03);
}
.hero__overlay{
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(11,18,32,.85), rgba(11,18,32,.55));
  display:flex; align-items:flex-end;
  padding: 22px 0;
}
.hero h1{ margin:0; color:#22c55e; font-size: 34px; letter-spacing:-.4px; }
.hero p{ margin:6px 0 0; color: #e5fbe9; font-weight: 600; }

.section{ padding: 22px 0 6px; }
.section__head{ display:flex; justify-content:space-between; align-items:baseline; gap:12px; }
.section__head h2{ margin:0; font-size: 22px; }
.section__hint{ color: var(--muted); font-size: 13px; }

.grid{
  margin-top: 12px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.card{
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
  padding: 10px;
  display:flex;
  flex-direction:column;
  gap: 8px;
}
.card img{
  width:100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 10px;
}
.card h3{ margin: 2px 0 0; font-size: 16px; line-height:1.15; }
.card p{ margin: 0; color: var(--muted); font-size: 13px; line-height:1.35; min-height: 36px; }

.btn{
  margin-top:auto;
  width:100%;
  border:none;
  cursor:pointer;
  padding: 11px 12px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  color:#fff;
  font-weight: 800;
}
.btn:active{ transform: scale(.99); }

.foot{ padding: 22px 0 34px; color: var(--muted); text-align:center; }

@media (max-width: 920px){
  .grid{ grid-template-columns: repeat(2, 1fr); }
  .hero{ height: 220px; }
}
@media (max-width: 560px){
  .grid{ grid-template-columns: 1fr; }
  .hero h1{ font-size: 28px; }
}


/* Mixed + Search */
.hero__content{display:flex; align-items:flex-end; justify-content:space-between; gap:14px; flex-wrap:wrap;}
.search{display:flex; gap:10px; align-items:center; width:min(520px, 100%);}
.search input{
  flex:1;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.12);
  color:#fff;
  outline:none;
}
.search input::placeholder{ color: rgba(255,255,255,.75); }
.search__btn{
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.10);
  color:#fff;
  font-weight: 700;
  cursor:pointer;
}
.search__btn:active{ transform: scale(.99); }

.section--tight{ padding-top: 18px; }

.tag{
  position:absolute;
  top: 14px;
  left: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  color:#0b1220;
  letter-spacing:.3px;
}
.tag--curso{ background: #fbbf24; }
.tag--audio{ background: #fb7185; }
.tag--ebook{ background: #34d399; }

.card{ position:relative; }
.empty{
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(11,18,32,.06);
  color: var(--muted);
  text-align:center;
  border: 1px dashed rgba(11,18,32,.18);
}