/* Opus 3 Ensino Musical: site institucional
   Layout: faixas alternadas (navy / claro) com conteudo em coluna central de 1120px.
   Tipografia e cores seguem as paginas da Escola da Harmonia. */

:root{
  --navy:#0A1020;
  --navy-2:#131D33;
  --navy-3:#1D2A45;
  --laranja:#FF8A1F;
  --laranja-escuro:#D96B00;
  --verde:#12A85C;
  --verde-claro:#16BD68;
  --tinta:#0A1020;
  --tinta-suave:#55607A;
  --linha:#E2E7F0;
  --fundo:#FFFFFF;
  --fundo-alt:#F4F6FA;
  --branco-suave:#EEF2FA;

  --display:"Bricolage Grotesque",system-ui,-apple-system,Segoe UI,sans-serif;
  --corpo:"Hanken Grotesk",system-ui,-apple-system,Segoe UI,sans-serif;

  --raio:14px;
  --max:1120px;
  color-scheme:light;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;scroll-padding-top:86px;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

body{
  margin:0;
  background:var(--fundo);
  color:var(--tinta);
  font-family:var(--corpo);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto;display:block}
a{color:var(--laranja-escuro);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:3px solid var(--laranja);outline-offset:3px;border-radius:4px}

h1,h2,h3,h4{font-family:var(--display);margin:0;line-height:1.12;text-wrap:balance;letter-spacing:-.02em}
h1{font-size:clamp(2rem,5.2vw,3.35rem);font-weight:800}
h2{font-size:clamp(1.6rem,3.6vw,2.4rem);font-weight:800}
h3{font-size:1.18rem;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1rem}
p:last-child{margin-bottom:0}

/* ---------- estrutura ---------- */
.faixa{padding-block:clamp(56px,7vw,92px)}
.faixa--alt{background:var(--fundo-alt)}
.faixa--escura{background:var(--navy);color:var(--branco-suave)}
.faixa--escura h2,.faixa--escura h3{color:#fff}
/* o :not(.btn) existe para a cor do link nao vencer a do botao, que tem
   especificidade menor e ficaria laranja sobre laranja */
.faixa--escura a:not(.btn){color:var(--laranja)}

.wrap{
  width:100%;max-width:var(--max);margin-inline:auto;
  padding-left:max(20px,env(safe-area-inset-left,0px));
  padding-right:max(20px,env(safe-area-inset-right,0px));
}

.cabecalho-secao{max-width:62ch;margin-bottom:38px}
.cabecalho-secao p{color:var(--tinta-suave);font-size:1.06rem;margin-top:12px}
.faixa--escura .cabecalho-secao p{color:#B9C4DA}

.sobrancelha{
  font-family:var(--corpo);font-size:.78rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--laranja-escuro);
  margin:0 0 12px;display:block;
}
.faixa--escura .sobrancelha{color:var(--laranja)}

/* ---------- topo ---------- */
.topo{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--linha);
}
.topo .wrap{display:flex;align-items:center;gap:20px;min-height:72px}
.topo__logo img{height:40px;width:auto}
.topo nav{margin-left:auto}
.topo nav ul{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
.topo nav a{
  color:var(--tinta);font-weight:600;font-size:.95rem;text-decoration:none;
  padding-block:6px;border-bottom:2px solid transparent;
}
.topo nav a:hover{color:var(--laranja-escuro);border-bottom-color:var(--laranja);text-decoration:none}
.menu-botao{
  display:none;margin-left:auto;background:none;border:1px solid var(--linha);
  border-radius:10px;padding:9px 12px;cursor:pointer;color:var(--tinta);
  font-family:var(--corpo);font-weight:600;font-size:.9rem;align-items:center;gap:8px;
}
.menu-botao svg{display:block}

/* ---------- botoes ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--corpo);font-weight:700;font-size:1rem;line-height:1.2;
  padding:15px 26px;border-radius:999px;border:2px solid transparent;
  text-decoration:none;cursor:pointer;transition:transform .15s ease,background .15s ease,color .15s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
/* Todo botao de acao do site e verde com letra branca.
   O laranja fica para a marca e para os detalhes, nunca para o CTA.
   --primario e --verde sao a mesma coisa; os dois nomes existem so
   para nao quebrar paginas antigas que usem um ou outro. */
.btn--primario,.btn--verde{background:var(--verde);color:#fff;border-color:var(--verde)}
.btn--primario:hover,.btn--verde:hover{background:var(--verde-claro);color:#fff}
.btn--contorno{background:transparent;color:var(--tinta);border-color:var(--linha)}
.btn--contorno:hover{border-color:var(--laranja);color:var(--laranja-escuro)}
.faixa--escura .btn--contorno,.heroi .btn--contorno{color:#fff;border-color:rgba(255,255,255,.34)}
.faixa--escura .btn--contorno:hover,.heroi .btn--contorno:hover{border-color:var(--laranja);color:var(--laranja)}
.btn--pequeno{padding:11px 20px;font-size:.92rem}
.btns{display:flex;flex-wrap:wrap;gap:14px}

.link-seta{font-weight:700;color:var(--laranja-escuro);display:inline-flex;align-items:center;gap:7px}
.link-seta::after{content:"→";transition:transform .15s ease}
.link-seta:hover{text-decoration:none}
.link-seta:hover::after{transform:translateX(3px)}

/* ---------- heroi ---------- */
.heroi{
  background:
    radial-gradient(900px 420px at 88% 12%,rgba(255,138,31,.20),transparent 62%),
    var(--navy);
  color:var(--branco-suave);padding-block:clamp(56px,7vw,86px);
}
.heroi__grade{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(32px,5vw,64px);align-items:center}
.heroi h1{color:#fff}
.heroi__texto p{color:#C3CDE2;font-size:1.12rem;max-width:52ch;margin-top:20px}
.heroi .btns{margin-top:32px}
.heroi__foto{border-radius:var(--raio);overflow:hidden}
.heroi__foto img{width:100%}

.numeros{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
  margin-top:clamp(40px,5vw,60px);padding-top:30px;border-top:1px solid rgba(255,255,255,.14);
}
.numeros div strong{
  display:block;font-family:var(--display);font-size:clamp(1.5rem,3vw,2rem);
  font-weight:800;color:var(--laranja);line-height:1.1;
}
.numeros div span{font-size:.92rem;color:#A9B5CC;display:block;margin-top:4px}

/* ---------- cartoes ---------- */
.grade{display:grid;gap:22px}
.grade--3{grid-template-columns:repeat(3,1fr)}
.grade--2{grid-template-columns:repeat(2,1fr)}
.grade--6{grid-template-columns:repeat(3,1fr)}

.cartao{
  background:var(--fundo);border:1px solid var(--linha);border-radius:var(--raio);
  padding:28px;display:flex;flex-direction:column;gap:12px;
}
.faixa--alt .cartao{background:#fff}
.cartao h3{margin:0}
.cartao p{color:var(--tinta-suave);font-size:1rem}
.cartao .link-seta{margin-top:auto;padding-top:8px}
.cartao__icone{
  width:46px;height:46px;border-radius:12px;background:rgba(255,138,31,.14);
  display:grid;place-items:center;color:var(--laranja-escuro);
}
.cartao__icone svg{width:24px;height:24px}

/* cartoes da secao "Comece por aqui": fundo escuro na cor de cada produto,
   logo em branco no topo e botao verde no rodape do cartao */
.cartao--trilha{border:1px solid rgba(255,255,255,.12);color:var(--branco-suave)}
.cartao--trilha h3{color:#fff}
.cartao--trilha p{color:#C3CDE2}
.cartao--trilha .lista-limpa li{color:#C3CDE2}
.cartao .btn{margin-top:auto;align-self:flex-start}

.cartao--guitarra{background:linear-gradient(155deg,#3A2070 0%,#1B0730 100%)}
.cartao--baixo{background:linear-gradient(155deg,#242424 0%,#050505 100%)}
.cartao--harmonia{background:linear-gradient(155deg,#16305F 0%,#070C18 100%)}

.trilha__marca{display:flex;align-items:center;min-height:112px}
.trilha__logo{width:auto;height:auto;max-width:100%;max-height:84px}
/* a arte do baixo e quadrada: precisa de mais altura para pesar igual */
.cartao--baixo .trilha__logo{max-height:112px}

/* icone dos aplicativos (arte quadrada, vinda da Central de Apps) */
.cartao--app{gap:14px}
/* a arte ja vem com cantos arredondados e margem transparente:
   nada de moldura, e a sombra segue o desenho (drop-shadow, nao box-shadow) */
.app-icone{
  width:72px;height:72px;
  filter:drop-shadow(0 8px 16px rgba(10,16,32,.22));
}

.lista-limpa{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.lista-limpa li{position:relative;padding-left:26px;color:var(--tinta-suave);font-size:.98rem}
.lista-limpa li::before{
  content:"";position:absolute;left:0;top:.52em;width:11px;height:11px;border-radius:50%;
  background:rgba(255,138,31,.25);box-shadow:inset 0 0 0 3px var(--laranja);
}

/* ---------- escola / professores ---------- */
.duas-colunas{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,60px);align-items:center}
.duas-colunas p{color:var(--tinta-suave);font-size:1.06rem}
.faixa--escura .duas-colunas p{color:#B9C4DA}
.moldura{border-radius:var(--raio);overflow:hidden;border:1px solid var(--linha)}
.faixa--escura .moldura{border-color:rgba(255,255,255,.14)}

.selos{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:40px}
.selo{background:#fff;border:1px solid var(--linha);border-radius:var(--raio);overflow:hidden}
.selo img{width:100%}
.selo p{padding:16px 20px;margin:0;font-size:.95rem;color:var(--tinta-suave)}

.professores{display:grid;gap:18px;margin-top:28px}
.professor{background:var(--navy-2);border:1px solid var(--navy-3);border-radius:var(--raio);padding:24px}
.professor__nome{font-family:var(--display);font-weight:800;font-size:1.15rem;color:#fff;margin:0 0 6px}
.professor p{margin:0;font-size:1rem;color:#B9C4DA}

/* ---------- livros ---------- */
.livros{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;align-items:start}
.livro{text-align:center}
.livro img{
  height:clamp(150px,17vw,205px);width:auto;max-width:100%;margin-inline:auto;
  object-fit:contain;transition:transform .18s ease;
}
.livro:hover img{transform:translateY(-4px)}
.livro span{display:block;margin-top:14px;font-size:.88rem;font-weight:600;color:var(--tinta-suave);line-height:1.35}

/* ---------- depoimentos ---------- */
.depoimentos{columns:3;column-gap:20px}
.depoimentos img{
  width:100%;margin-bottom:20px;border-radius:12px;border:1px solid var(--linha);
  break-inside:avoid;background:#fff;
}

/* ---------- blog ---------- */
.blog-destaque{
  background:var(--navy-2);border:1px solid var(--navy-3);border-radius:var(--raio);
  padding:clamp(24px,3vw,32px);margin-bottom:22px;
  display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;
}
.blog-destaque h3{font-size:1.4rem;margin-bottom:10px}
.blog-destaque p{color:#B9C4DA;max-width:62ch;margin:0}
.blog-destaque .lista-limpa--linha{
  grid-auto-flow:column;grid-auto-columns:max-content;justify-content:start;
  gap:28px;margin-top:16px;
}
.faixa--escura .lista-limpa li{color:#B9C4DA}

/* ---------- redes ---------- */
.rede{
  background:var(--navy-2);border:1px solid var(--navy-3);border-radius:var(--raio);
  padding:26px;display:flex;flex-direction:column;gap:14px;
}
.rede h3{font-size:1.1rem}
.rede p{color:#B9C4DA;font-size:.98rem;margin:0}
.rede__links{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;padding-top:6px}
.rede__links a{
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);color:#fff;font-weight:600;font-size:.92rem;text-decoration:none;
}
.rede__links a:hover{border-color:var(--laranja);color:var(--laranja);text-decoration:none}
.rede__links svg{width:17px;height:17px;flex:none}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px;max-width:820px}
.faq details{background:#fff;border:1px solid var(--linha);border-radius:12px;padding:4px 22px}
.faq summary{
  cursor:pointer;list-style:none;font-family:var(--display);font-weight:700;font-size:1.04rem;
  padding:18px 32px 18px 0;position:relative;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:1.5rem;font-weight:400;color:var(--laranja-escuro);line-height:1;
}
.faq details[open] summary::after{content:"\2212"}   /* sinal de menos, par do "+" */
.faq details > p{padding:0 0 18px;color:var(--tinta-suave);font-size:1rem}

/* ---------- contato ---------- */
.contato{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:32px}
.contato a{
  display:flex;align-items:center;gap:14px;padding:22px 24px;border-radius:var(--raio);
  background:var(--navy-2);border:1px solid var(--navy-3);color:#fff;text-decoration:none;
}
.contato a:hover{border-color:var(--laranja);text-decoration:none}
.contato a > span{min-width:0}
.contato svg{width:24px;height:24px;flex:none;color:var(--laranja)}
.contato strong{display:block;font-family:var(--display);font-size:1.05rem;overflow-wrap:anywhere}
.contato span{display:block;font-size:.93rem;color:#B9C4DA}

/* ---------- rodape ---------- */
.rodape{background:#060A14;color:#97A3BC;padding-block:54px 34px;font-size:.94rem}
.rodape__grade{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:38px}
.rodape img{height:62px;width:auto}
.rodape h4{font-family:var(--display);color:#fff;font-size:1rem;margin:0 0 14px}
.rodape ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.rodape a{color:#97A3BC;text-decoration:none;overflow-wrap:anywhere}
.rodape a:hover{color:var(--laranja);text-decoration:none}
.rodape__base{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:.88rem;
}

/* ---------- faixa de cookies ---------- */
.cookies{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  background:var(--navy-2);color:var(--branco-suave);
  border-top:2px solid var(--laranja);
  box-shadow:0 -12px 34px rgba(6,10,20,.3);
  padding-block:18px;
  padding-left:max(20px,env(safe-area-inset-left,0px));
  padding-right:max(20px,env(safe-area-inset-right,0px));
  padding-bottom:calc(18px + env(safe-area-inset-bottom,0px));
}
.cookies__inner{
  width:100%;max-width:var(--max);margin-inline:auto;
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
}
.cookies p{margin:0;font-size:.95rem;color:#C3CDE2;flex:1 1 300px;min-width:0}
.cookies a{color:var(--laranja)}
.cookies__btns{display:flex;gap:10px;flex:none}
.cookies .btn{padding:11px 22px;font-size:.93rem}
.cookies .btn--contorno{color:#fff;border-color:rgba(255,255,255,.34)}
.cookies .btn--contorno:hover{border-color:var(--laranja);color:var(--laranja)}

#rever-cookies{
  font-family:var(--corpo);font-weight:700;font-size:.95rem;cursor:pointer;
  background:var(--verde);border:2px solid var(--verde);border-radius:999px;
  padding:11px 22px;color:#fff;
}
#rever-cookies:hover{background:var(--verde-claro);border-color:var(--verde-claro)}
#rever-cookies:disabled{
  cursor:default;background:transparent;color:var(--tinta-suave);border-color:var(--linha);
}

/* ---------- pagina de texto (politica / termos) ---------- */
.texto{max-width:760px;padding-block:clamp(48px,6vw,76px)}
.texto h1{font-size:clamp(1.8rem,4vw,2.6rem);margin-bottom:10px}
.texto h2{font-size:1.3rem;margin:38px 0 12px}
.texto p,.texto li{color:#2B3348;font-size:1.03rem}
.texto ul{padding-left:22px;display:grid;gap:8px;margin:0 0 1rem}
.texto .data{color:var(--tinta-suave);font-size:.93rem;margin-bottom:28px}
.texto .voltar{display:inline-block;margin-top:40px}

/* ---------- responsivo ---------- */
@media (max-width:1000px){
  .livros{grid-template-columns:repeat(3,1fr)}
  .grade--6{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  html{scroll-padding-top:76px}
  .topo nav{
    display:none;position:absolute;left:0;right:0;top:100%;background:#fff;
    border-bottom:1px solid var(--linha);box-shadow:0 18px 30px rgba(10,16,32,.1);
  }
  .topo nav.aberto{display:block}
  .topo nav ul{flex-direction:column;align-items:stretch;gap:0;padding:8px 0}
  .topo nav a{display:block;padding:14px 22px;border-bottom:0}
  .topo nav a:hover{background:var(--fundo-alt);border-bottom:0}
  .menu-botao{display:inline-flex}
  .heroi__grade,.duas-colunas{grid-template-columns:1fr}
  .heroi__foto{order:-1}
  .grade--3,.grade--2,.grade--6,.selos,.contato{grid-template-columns:1fr}
  .blog-destaque{grid-template-columns:1fr;gap:22px}
  .blog-destaque .lista-limpa--linha{grid-auto-flow:row;gap:9px}
  .numeros{grid-template-columns:repeat(2,1fr);gap:18px}
  .depoimentos{columns:2}
  .rodape__grade{grid-template-columns:1fr;gap:30px}
}
@media (max-width:520px){
  body{font-size:16px}
  .cookies__btns{width:100%}
  .cookies .btn{flex:1;width:auto}
  .livros{grid-template-columns:repeat(2,1fr)}
  .depoimentos{columns:1}
  .cartao{padding:22px}
  .btn{width:100%}
}