/* =====================================================================
   Tela do aluno
   ===================================================================== */

/* --- Cabeçalho -------------------------------------------------------- */
.topo {
  position: sticky; top: 0; z-index: 30;
  background: rgba(10, 10, 15, .88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--linha-forte);
}
.topo-interno {
  max-width: 1360px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
}
.marca { display: flex; align-items: center; gap: 12px; }
.marca-icone {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(140deg, var(--acento), #b07cff);
  display: grid; place-items: center;
  box-shadow: 0 6px 18px rgba(124, 92, 255, .35);
}
.marca-nome { font-size: 15px; font-weight: 700; letter-spacing: -.01em; line-height: 1.1; }
.marca-sub {
  font-size: 10px; font-weight: 700; color: var(--texto-3);
  text-transform: uppercase; letter-spacing: .2em; margin-top: 3px;
}
.topo-acoes { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.topo-busca { position: relative; width: 280px; max-width: 42vw; }
.topo-busca input { padding-left: 38px; border-radius: 999px; background: var(--card); }
.topo-busca svg { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); color: var(--texto-3); }
.topo-usuario { font-size: 13px; color: var(--texto-2); }

/* --- Abertura --------------------------------------------------------- */
.abertura { max-width: 1360px; margin: 0 auto; padding: 34px 24px 0; }
.abertura h1 { margin: 0; font-size: 26px; letter-spacing: -.02em; }
.abertura p { margin: 8px 0 0; color: var(--texto-2); max-width: 620px; line-height: 1.55; }

/* --- Alternador Imagens / Vídeos -------------------------------------- */
.modos {
  display: inline-flex; gap: 4px; margin: 22px 0 0;
  padding: 4px; border-radius: 999px;
  background: var(--card); border: 1px solid var(--linha-forte);
}
.modo {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 20px; border-radius: 999px;
  font-size: 13px; font-weight: 600; color: var(--texto-2); transition: .15s;
}
.modo.ativo { background: var(--acento); color: #fff; box-shadow: 0 4px 14px rgba(124, 92, 255, .35); }
.modo:not(.ativo):hover { color: var(--texto); }

/* --- Categorias ------------------------------------------------------- */
.categorias {
  max-width: 1360px; margin: 0 auto; padding: 18px 24px 4px;
  display: flex; gap: 8px; flex-wrap: wrap;
}
.categoria {
  padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--linha-forte); background: transparent;
  font-size: 13px; font-weight: 600; color: var(--texto-2); transition: .15s;
}
.categoria:hover { color: var(--texto); border-color: #3a3a4c; }
.categoria.ativa { background: var(--acento-fraco); border-color: var(--acento); color: #cfc2ff; }
.categoria .conta { color: var(--texto-3); font-weight: 500; margin-left: 6px; }

/* --- Grade ------------------------------------------------------------ */
.grade {
  max-width: 1360px; margin: 0 auto; padding: 18px 24px 60px;
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}
.card {
  background: var(--card); border: 1px solid var(--linha-forte);
  border-radius: var(--raio); overflow: hidden;
  display: flex; flex-direction: column; transition: .18s;
}
.card:hover { border-color: #3d3d55; transform: translateY(-2px); }

.card-arte {
  position: relative; aspect-ratio: 9 / 16; background: var(--bg-2);
  overflow: hidden; cursor: pointer;
}
.card-arte img, .card-arte video { width: 100%; height: 100%; object-fit: cover; }
.card-arte .vazio {
  width: 100%; height: 100%; display: grid; place-items: center;
  color: var(--texto-3); font-size: 12px;
}

.selo {
  position: absolute; top: 10px; left: 10px; z-index: 2;
  display: flex; align-items: center; gap: 6px;
  padding: 5px 10px; border-radius: 999px;
  background: rgba(10, 10, 15, .72); backdrop-filter: blur(6px);
  font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
}
.selo.video { color: #cfc2ff; }
.selo.imagem { color: #ffd2a6; }

/* O aviso de hover some assim que o vídeo começa a tocar. */
.dica-hover {
  position: absolute; inset: auto 0 0 0; z-index: 2;
  padding: 26px 12px 12px; display: flex; align-items: center; gap: 7px;
  background: linear-gradient(transparent, rgba(10, 10, 15, .85));
  font-size: 11px; color: #d8d8e6; transition: opacity .2s;
}
.card-arte.tocando .dica-hover { opacity: 0; }

.card-corpo { padding: 12px 13px 13px; display: flex; flex-direction: column; gap: 9px; flex: 1; }
.card-titulo { font-size: 13.5px; font-weight: 600; line-height: 1.35; }
.card-modelo { font-size: 11px; color: var(--texto-3); display: flex; align-items: center; gap: 6px; }
.card-modelo b { color: var(--texto-2); font-weight: 600; }
.card-acoes { margin-top: auto; display: flex; gap: 7px; }
.card-acoes .btn { flex: 1; padding: 8px 10px; font-size: 12px; }

/* --- Vazio ------------------------------------------------------------ */
.vazio-tela {
  max-width: 520px; margin: 60px auto; padding: 0 24px; text-align: center;
  color: var(--texto-2);
}
.vazio-tela .emoji { font-size: 34px; margin-bottom: 12px; }
.vazio-tela h2 { margin: 0 0 8px; font-size: 17px; color: var(--texto); }
.vazio-tela p { margin: 0; line-height: 1.6; font-size: 13.5px; }

/* --- Modal do prompt -------------------------------------------------- */
.modal-fundo {
  position: fixed; inset: 0; z-index: 60;
  background: rgba(5, 5, 9, .78); backdrop-filter: blur(4px);
  display: grid; place-items: center; padding: 24px;
}
.modal {
  width: min(860px, 100%); max-height: 88vh; overflow: auto;
  background: var(--card); border: 1px solid var(--linha-forte);
  border-radius: 18px; padding: 0;
  display: grid; grid-template-columns: 300px 1fr;
}
.modal-arte { background: var(--bg-2); }
.modal-arte img, .modal-arte video { width: 100%; height: 100%; object-fit: cover; max-height: 88vh; }
.modal-lado { padding: 22px 24px 24px; display: flex; flex-direction: column; gap: 14px; }
.modal-lado h2 { margin: 0; font-size: 18px; letter-spacing: -.01em; }
.modal-prompt {
  background: var(--bg-2); border: 1px solid var(--linha-forte); border-radius: 12px;
  padding: 14px; font-size: 13px; line-height: 1.65; color: #d9d9e6;
  white-space: pre-wrap; word-break: break-word; max-height: 40vh; overflow: auto;
}
.modal-acoes { display: flex; gap: 9px; flex-wrap: wrap; }

@media (max-width: 720px) {
  .modal { grid-template-columns: 1fr; }
  .modal-arte { max-height: 40vh; }
  .topo-busca { order: 3; width: 100%; max-width: none; }
  .abertura h1 { font-size: 21px; }
  .grade { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
}

/* --- Aviso de cópia --------------------------------------------------- */
.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%);
  z-index: 80; padding: 11px 18px; border-radius: 999px;
  background: var(--acento); color: #fff; font-size: 13px; font-weight: 600;
  box-shadow: 0 10px 30px rgba(124, 92, 255, .4);
  animation: sobe .25s ease;
}
@keyframes sobe { from { opacity: 0; transform: translate(-50%, 10px); } }