:root {
  --cor: #7c5cff;
  --fundo: #0a0a0f;
  --painel: #13131b;
  --painel2: #1a1a24;
  --borda: #26263a;
  --texto: #ededf4;
  --suave: #9b9bb3;
  --fraco: #6b6b82;
  --ok: #2fd27a;
  --erro: #ff5d6e;
  --raio: 14px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--fundo);
  color: var(--texto);
  font: 15px/1.55 "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
h1, h2, h3 { line-height: 1.2; margin: 0; letter-spacing: -0.01em; }
button, input, textarea, select { font: inherit; color: inherit; }
[hidden] { display: none !important; }

/* ---------- botões e campos ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--borda); background: var(--painel2); color: var(--texto);
  padding: 10px 16px; border-radius: 10px; font-weight: 600; cursor: pointer;
  text-decoration: none; transition: filter .15s, background .15s, border-color .15s; white-space: nowrap;
}
.btn:hover { filter: brightness(1.15); }
.btn:disabled { opacity: .55; cursor: default; filter: none; }
.btn.primario { background: var(--cor); border-color: var(--cor); color: #fff; }
.btn.fantasma { background: transparent; }
.btn.perigo { color: var(--erro); }
.btn.mini { padding: 6px 10px; font-size: 13px; border-radius: 8px; }
.btn svg { width: 18px; height: 18px; flex: none; }

label { display: grid; gap: 6px; font-size: 13px; font-weight: 600; color: var(--suave); }
input, textarea, select {
  width: 100%; background: var(--fundo); border: 1px solid var(--borda); border-radius: 10px;
  padding: 11px 13px; font-size: 15px; font-weight: 400; color: var(--texto); outline: none;
  transition: border-color .15s, box-shadow .15s;
}
textarea { resize: vertical; min-height: 90px; }
input:focus, textarea:focus, select:focus { border-color: var(--cor); box-shadow: 0 0 0 3px color-mix(in srgb, var(--cor) 25%, transparent); }
input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--cor); padding: 0; }
input[type="color"] { padding: 4px; height: 44px; width: 70px; }
label.check { display: flex; align-items: center; gap: 10px; color: var(--texto); font-weight: 500; cursor: pointer; }
small, .dica { color: var(--fraco); font-size: 13px; font-weight: 400; }

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); opacity: 0;
  background: var(--painel2); border: 1px solid var(--borda); padding: 12px 18px; border-radius: 12px;
  box-shadow: 0 10px 30px #0008; transition: .25s; z-index: 99; pointer-events: none; max-width: calc(100% - 32px);
}
.toast.mostrar { opacity: 1; transform: translate(-50%, 0); }
.toast.ok { border-color: color-mix(in srgb, var(--ok) 50%, var(--borda)); }
.toast.erro { border-color: var(--erro); }

/* ---------- login ---------- */
.pagina-login {
  display: grid; place-items: center; padding: 24px 16px;
  background:
    radial-gradient(900px 500px at 15% -10%, color-mix(in srgb, var(--cor) 28%, transparent), transparent 60%),
    radial-gradient(700px 400px at 110% 110%, color-mix(in srgb, var(--cor) 16%, transparent), transparent 60%),
    var(--fundo);
}
.login { width: 100%; max-width: 410px; }
.login-marca { display: flex; justify-content: center; margin-bottom: 26px; font-size: 24px; font-weight: 800; }
.login-marca img { max-height: 64px; width: auto; }
.cartao { background: var(--painel); border: 1px solid var(--borda); border-radius: 18px; padding: 26px; box-shadow: 0 20px 60px #0007; }
.cartao form { display: grid; gap: 16px; }
.cartao .btn.primario { width: 100%; padding: 13px; margin-top: 4px; }
.abas { display: grid; grid-template-columns: 1fr 1fr; background: var(--fundo); border-radius: 12px; padding: 4px; margin-bottom: 22px; }
.aba { border: 0; background: none; padding: 9px; border-radius: 9px; color: var(--suave); font-weight: 600; cursor: pointer; }
.aba.ativa { background: var(--painel2); color: var(--texto); }
.msg { color: var(--erro); font-size: 14px; margin: 14px 0 0; min-height: 1em; text-align: center; }
.msg:empty { display: none; }
.suporte { text-align: center; color: var(--suave); font-size: 14px; margin-top: 18px; }
.suporte a { color: var(--texto); }

/* ---------- topo ---------- */
.topo { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--fundo) 85%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--borda); }
.topo-in { max-width: 1280px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.marca { display: flex; align-items: center; font-weight: 800; font-size: 18px; text-decoration: none; min-width: 0; }
.marca img { max-height: 36px; width: auto; }
.marca span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.voltar { display: inline-flex; align-items: center; gap: 6px; text-decoration: none; color: var(--suave); font-weight: 600; white-space: nowrap; }
.voltar svg { width: 18px; height: 18px; flex: none; }
.voltar:hover { color: var(--texto); }
.topo-dir { display: flex; align-items: center; gap: 10px; }
.avatar { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: color-mix(in srgb, var(--cor) 30%, var(--painel2)); font-weight: 700; font-size: 13px; }

/* ---------- vitrine ---------- */
.conteudo { max-width: 1280px; margin: 0 auto; padding: 28px 20px 60px; }
.ola { padding: 26px 0 30px; }
.ola h1 { font-size: clamp(24px, 4vw, 34px); font-weight: 800; }
.ola p { color: var(--suave); margin: 8px 0 0; max-width: 640px; }
.secao-titulo { font-size: 18px; font-weight: 700; margin: 26px 0 14px; }
.grade { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 18px; }
.card {
  display: flex; flex-direction: column; background: var(--painel); border: 1px solid var(--borda);
  border-radius: var(--raio); overflow: hidden; text-decoration: none; transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--cor) 60%, var(--borda)); }
.capa { position: relative; aspect-ratio: 16 / 9; background: var(--painel2); overflow: hidden; }
.capa img { width: 100%; height: 100%; object-fit: cover; }
.capa-vazia {
  width: 100%; height: 100%; display: grid; place-items: center; font-size: 46px; font-weight: 800;
  background: linear-gradient(135deg, color-mix(in srgb, var(--cor) 55%, #000), color-mix(in srgb, var(--cor) 15%, #000));
}
.card-corpo { padding: 14px 16px 16px; display: grid; gap: 10px; flex: 1; align-content: space-between; }
.card h3 { font-size: 16px; font-weight: 700; }
.card-prog { display: grid; gap: 6px; }
.card-prog small { color: var(--suave); }
.barra { height: 6px; background: var(--painel2); border-radius: 99px; overflow: hidden; }
.barra span { display: block; height: 100%; background: var(--cor); border-radius: 99px; transition: width .3s; }
.card.bloqueado .capa img, .card.bloqueado .capa-vazia { filter: grayscale(.8) brightness(.5); }
.cadeado { position: absolute; inset: 0; display: grid; place-items: center; }
.cadeado svg { width: 38px; height: 38px; }
.etiqueta { display: inline-block; font-size: 13px; font-weight: 700; color: var(--cor); }
.vazio { text-align: center; color: var(--suave); background: var(--painel); border: 1px dashed var(--borda); border-radius: var(--raio); padding: 40px 20px; }
.carregando { color: var(--suave); padding: 40px 0; text-align: center; }

/* ---------- curso ---------- */
.curso-layout { max-width: 1440px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 24px; padding: 20px; }
.player { aspect-ratio: 16 / 9; background: #000; border-radius: var(--raio); overflow: hidden; border: 1px solid var(--borda); }
.player iframe, .player video { width: 100%; height: 100%; border: 0; display: block; }
.sem-video { height: 100%; display: grid; place-items: center; color: var(--suave); text-align: center; padding: 20px; }
.aula-info { padding: 20px 2px; }
.aula-cab { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; }
.aula-cab small { display: block; margin-bottom: 4px; color: var(--suave); }
.aula-cab h1 { font-size: clamp(20px, 2.6vw, 26px); font-weight: 800; }
.acoes { display: flex; gap: 8px; flex-wrap: wrap; }
.btn.feita { background: color-mix(in srgb, var(--ok) 18%, var(--painel2)); border-color: color-mix(in srgb, var(--ok) 50%, var(--borda)); color: var(--ok); }
.descricao { margin-top: 20px; color: #d3d3e0; line-height: 1.7; overflow-wrap: anywhere; }
.descricao a { color: var(--cor); }
.materiais { margin-top: 24px; display: grid; gap: 8px; }
.materiais h3 { font-size: 15px; margin-bottom: 4px; }
.material { display: flex; align-items: center; gap: 10px; padding: 12px 14px; background: var(--painel); border: 1px solid var(--borda); border-radius: 10px; text-decoration: none; }
.material:hover { border-color: var(--cor); }
.material svg { width: 18px; height: 18px; color: var(--cor); flex: none; }
.nav-aulas { display: flex; justify-content: space-between; gap: 10px; margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--borda); }

.lista { background: var(--painel); border: 1px solid var(--borda); border-radius: var(--raio); align-self: start; position: sticky; top: 76px; max-height: calc(100vh - 96px); display: flex; flex-direction: column; overflow: hidden; }
.lista-topo { padding: 18px; border-bottom: 1px solid var(--borda); display: grid; gap: 10px; }
.lista-topo strong { font-size: 16px; }
.lista-topo small { color: var(--suave); }
.lista-corpo { overflow-y: auto; padding: 6px 0; }
.modulo summary { list-style: none; cursor: pointer; padding: 12px 18px; display: flex; justify-content: space-between; gap: 10px; font-weight: 700; font-size: 14px; }
.modulo summary::-webkit-details-marker { display: none; }
.modulo summary small { color: var(--fraco); font-weight: 600; white-space: nowrap; }
.modulo summary:hover { background: var(--painel2); }
.item-aula { display: flex; align-items: center; gap: 12px; padding: 10px 18px 10px 20px; text-decoration: none; color: var(--suave); font-size: 14px; border-left: 3px solid transparent; }
.item-aula:hover { background: var(--painel2); color: var(--texto); }
.item-aula.ativa { background: color-mix(in srgb, var(--cor) 14%, transparent); border-left-color: var(--cor); color: var(--texto); font-weight: 600; }
.bolinha { width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--fraco); flex: none; display: grid; place-items: center; }
.bolinha svg { width: 12px; height: 12px; opacity: 0; }
.item-aula.feita .bolinha { background: var(--ok); border-color: var(--ok); color: #04130b; }
.item-aula.feita .bolinha svg { opacity: 1; }

@media (max-width: 960px) {
  .curso-layout { grid-template-columns: 1fr; padding: 0 0 40px; gap: 0; }
  .player { border-radius: 0; border-left: 0; border-right: 0; }
  .aula-info { padding: 18px 16px; }
  .lista { position: static; max-height: none; margin: 0 16px; }
}
@media (max-width: 560px) {
  .topo-in { padding: 10px 16px; }
  .conteudo { padding: 16px 16px 50px; }
  .grade { grid-template-columns: 1fr; }
  .acoes, .acoes .btn { width: 100%; }
  .nav-aulas .btn { flex: 1; }
  .esconde-mobile { display: none; }
}