@import url("https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:wght@400;700&family=Bricolage+Grotesque:opsz,wght@12..96,500;12..96,700;12..96,800&display=swap");

:root {
  --tinta: #1c2230;
  --suave: #5d6678;
  --papel: #f6f7fb;
  --branco: #ffffff;
  --linha: #dde2ec;
  --karaoke: #ffd84d;
  --ok: #15803d;
  --erro: #b42318;
  --a1: #15803d; --a2: #1d4ed8; --b1: #6d28d9; --b2: #c2410c; --c1: #9f1239; --c2: #1f2937;
  --nivel: var(--tinta);
  --raio: 14px;
  --display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --texto: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--papel); color: var(--tinta); font: 17px/1.55 var(--texto); }
a { color: inherit; }
img { max-width: 100%; display: block; }
:focus-visible { outline: 3px solid var(--karaoke); outline-offset: 2px; border-radius: 6px; }
.envelope { max-width: 960px; margin: 0 auto; padding: 0 18px 64px; }

/* topo */
.topo { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 0; }
.marca { font: 800 21px/1 var(--display); letter-spacing: -.02em; text-decoration: none; }
.marca span { background: var(--karaoke); padding: 0 .18em; border-radius: 4px; }
.botao-texto { background: none; border: 0; font: inherit; color: var(--suave); cursor: pointer; padding: 6px 4px; }
.botao-texto:hover { color: var(--tinta); }

h1, h2, h3 { font-family: var(--display); letter-spacing: -.02em; line-height: 1.1; margin: 0; }
h1 { font-size: clamp(32px, 6vw, 52px); font-weight: 800; }
h2 { font-size: 26px; font-weight: 700; }
h3 { font-size: 19px; font-weight: 700; }
.apoio { color: var(--suave); margin: 6px 0 0; }

/* botões */
.botao { display: inline-flex; align-items: center; gap: 8px; border: 0; border-radius: 999px; padding: 12px 20px;
  font: 700 16px/1 var(--texto); cursor: pointer; text-decoration: none; background: var(--tinta); color: #fff; }
.botao.claro { background: var(--branco); color: var(--tinta); box-shadow: inset 0 0 0 1.5px var(--linha); }
.botao:disabled { opacity: .5; cursor: default; }

/* continuar */
.continuar { margin: 10px 0 34px; padding: 22px; border-radius: 22px; background: var(--nivel); color: #fff;
  display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: center; }
.continuar .rotulo { opacity: .8; font-size: 15px; }
.continuar h2 { color: #fff; margin-top: 4px; }
.continuar .botao { background: var(--karaoke); color: var(--tinta); }
@media (max-width: 560px) { .continuar { grid-template-columns: 1fr; } }

/* estante de níveis = álbuns */
.estante { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px; margin-top: 16px; }
.album { position: relative; aspect-ratio: 1; border-radius: var(--raio); background: var(--nivel); color: #fff;
  padding: 16px; text-decoration: none; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; }
.album .codigo { font: 800 64px/0.9 var(--display); letter-spacing: -.04em; }
.album .nome { font-weight: 700; }
.album .barra { height: 6px; background: rgba(255,255,255,.25); border-radius: 99px; overflow: hidden; margin-top: 8px; }
.album .barra i { display: block; height: 100%; background: var(--karaoke); }
.album .conta { font-size: 14px; opacity: .85; margin-top: 4px; }
.album::after { content: ""; position: absolute; right: -40px; top: -40px; width: 140px; height: 140px; border-radius: 50%;
  border: 18px solid rgba(255,255,255,.12); }
.album[data-n="c2"] { box-shadow: inset 0 0 0 2px #d4af37; }
.album[data-n="c2"] .codigo { color: #e9c766; }

/* capa do nível + faixas */
.capa-nivel { display: flex; gap: 18px; align-items: flex-end; margin: 6px 0 22px; }
.capa-nivel .quadro { width: 112px; height: 112px; flex: none; border-radius: var(--raio); background: var(--nivel); color: #fff;
  display: grid; place-items: center; font: 800 46px/1 var(--display); }
.faixas { list-style: none; padding: 0; margin: 0; background: var(--branco); border-radius: var(--raio); box-shadow: inset 0 0 0 1px var(--linha); }
.faixas li + li { border-top: 1px solid var(--linha); }
.faixas a { display: grid; grid-template-columns: 38px 1fr auto; gap: 12px; align-items: center; padding: 14px 16px; text-decoration: none; }
.faixas a:hover { background: #fafbfd; }
.faixas .num { font: 700 17px/1 var(--display); color: var(--suave); }
.faixas .tit { font-weight: 700; }
.faixas .ass { color: var(--suave); font-size: 15px; }
.feito { width: 24px; height: 24px; border-radius: 50%; box-shadow: inset 0 0 0 2px var(--linha); display: grid; place-items: center; font-size: 14px; }
.feito.sim { background: var(--ok); box-shadow: none; color: #fff; }

/* página da música */
.cabeca-musica { display: grid; gap: 4px; margin: 4px 0 14px; }
.trilha { color: var(--suave); font-size: 15px; text-decoration: none; }
.player { width: 100%; margin: 8px 0 4px; }
.abas { display: flex; gap: 6px; overflow-x: auto; padding: 4px 0 10px; margin: 8px 0 14px; border-bottom: 1px solid var(--linha); }
.abas button { flex: none; border: 0; background: none; font: 700 16px/1 var(--texto); color: var(--suave); padding: 10px 12px; border-radius: 999px; cursor: pointer; }
.abas button[aria-selected="true"] { background: var(--tinta); color: #fff; }
.painel { background: var(--branco); border-radius: var(--raio); box-shadow: inset 0 0 0 1px var(--linha); padding: 20px; }
video { width: 100%; border-radius: 10px; background: #000; }

.letra .secao { font: 700 14px/1 var(--display); color: var(--nivel); margin: 18px 0 6px; }
.letra .secao:first-child { margin-top: 0; }
.letra p { margin: 0 0 10px; max-width: 62ch; }
.letra .en { font-size: 19px; font-weight: 700; }
.letra .pt { display: block; color: var(--suave); font-style: italic; }
.letra.sem-traducao .pt { visibility: hidden; }
.letra p:hover .en { background: linear-gradient(transparent 60%, var(--karaoke) 60%); }

.mapa img { border-radius: 10px; margin: 0 auto; max-height: 92vh; }

.exercicio + .exercicio { margin-top: 26px; }
.exercicio h3 { margin-bottom: 8px; }
.lacuna { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin: 10px 0; }
.lacuna input, .assoc select, textarea { font: inherit; border: 1.5px solid var(--linha); border-radius: 10px; padding: 6px 10px; background: #fff; }
.lacuna input { width: 9em; }
.certo { border-color: var(--ok) !important; background: #ecfdf3 !important; }
.errado { border-color: var(--erro) !important; background: #fef3f2 !important; }
.assoc { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px; align-items: center; }
textarea { width: 100%; min-height: 80px; }
.exemplo { margin-top: 8px; color: var(--suave); }

.frase { display: flex; gap: 12px; align-items: center; padding: 12px 0; }
.frase + .frase { border-top: 1px solid var(--linha); }
.tocar { flex: none; width: 44px; height: 44px; border-radius: 50%; border: 0; background: var(--nivel); color: #fff; cursor: pointer; font-size: 16px; }
.frase .en { font-weight: 700; }
.frase .pt { color: var(--suave); font-size: 15px; }

.rodape-musica { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-top: 18px; }

/* bônus */
.grupo { margin-top: 22px; }
.downloads { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }

/* entrar */
.cartao-entrar { max-width: 440px; margin: 8vh auto 0; background: var(--branco); border-radius: 22px; padding: 28px; box-shadow: inset 0 0 0 1px var(--linha); }
.cartao-entrar input { width: 100%; font: inherit; padding: 12px 14px; border: 1.5px solid var(--linha); border-radius: 12px; margin: 14px 0 12px; }
.aviso { margin-top: 14px; padding: 12px; border-radius: 12px; background: #f1f5ff; }
.aviso.ruim { background: #fef3f2; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }