/* =====================================================================
   SITE PÚBLICO DELTA (início, Delta Advanced): mesmo visual da Delta Educacional e do Portal.
   Fundo azul-céu, cartões de vidro, fonte Outfit, botões grandes para o dedo.
   ===================================================================== */
@font-face { font-family: "Outfit"; font-style: normal; font-weight: 100 900; font-display: swap;
  src: url("/deltaeducacional/assets/fonts/outfit-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212; }
@font-face { font-family: "Outfit"; font-style: normal; font-weight: 100 900; font-display: swap;
  src: url("/deltaeducacional/assets/fonts/outfit-latin-ext-wght-normal.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1EFF, U+20A0-20C0, U+2C60-2C7F, U+A720-A7FF; }

:root {
  --azul: #05A8E8; --azul-forte: #0877B3; --ciano: #05C3F5; --azul-claro: #6ECFF3; --azul-ceu: #A3DCF8;
  --noite: #06101F; --azul-fundo: #0A3A66; --fundo: #E4F3FC;
  --vidro: rgba(255, 255, 255, .62); --vidro-forte: rgba(255, 255, 255, .88); --borda: rgba(255, 255, 255, .95);
  --linha: rgba(6, 16, 31, .09);
  --texto: #06101F; --texto-2: #43546B; --texto-3: #6E7F95;
  --ok: #0B7A55; --ok-bg: #DCF5EA; --aviso: #8A5A00; --aviso-bg: #FFF1CF; --erro: #B42318; --erro-bg: #FDE4E1;
  --sombra: 0 24px 50px -28px rgba(10, 58, 102, .35), 0 2px 6px rgba(10, 58, 102, .04);
  --sombra-forte: 0 40px 70px -30px rgba(10, 58, 102, .45);
  --raio: 28px; --raio-p: 18px;
  --fonte: "Outfit", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; } /* senão .btn/.aviso (display flex) ignorariam o atributo hidden */
html { scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--fonte); color: var(--texto); line-height: 1.55; background: var(--fundo);
  background-image:
    radial-gradient(800px 520px at 88% -8%, rgba(110, 207, 243, .55), transparent 62%),
    radial-gradient(700px 520px at -12% 30%, rgba(163, 220, 248, .7), transparent 60%),
    radial-gradient(900px 600px at 60% 110%, rgba(5, 195, 245, .18), transparent 60%);
  background-attachment: fixed; overflow-x: hidden;
}
h1, h2, h3, h4 { margin: 0; font-weight: 500; letter-spacing: -.03em; line-height: 1.08; }
p { margin: 0; }
a { color: inherit; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--azul); outline-offset: 2px; }

.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 16px; }
.vidro { background: var(--vidro); border: 1px solid var(--borda); box-shadow: var(--sombra);
  backdrop-filter: blur(18px) saturate(1.2); -webkit-backdrop-filter: blur(18px) saturate(1.2); border-radius: var(--raio); }
.cartao { background: var(--vidro-forte); border: 1px solid var(--borda); box-shadow: var(--sombra); border-radius: var(--raio); padding: 22px; }

/* Barra do topo, fixa e translúcida */
.topo { position: sticky; top: 0; z-index: 50; padding: calc(env(safe-area-inset-top, 0px) + 10px) 0 10px; }
.topo-barra { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 10px 8px 16px; border-radius: 999px; }
.topo-marca { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; letter-spacing: -.02em; }
.topo-marca img { height: 62px; width: auto; margin: -12px -6px; } /* a imagem é quadrada com bastante margem */
.topo-links { display: none; gap: 4px; }
.topo-links a { text-decoration: none; padding: 9px 14px; border-radius: 999px; color: var(--texto-2); font-size: .95rem; }
.topo-links a:hover, .topo-links a[aria-current] { background: rgba(255, 255, 255, .8); color: var(--texto); }
@media (min-width: 900px) { .topo-links { display: flex; } .topo-marca img { height: 78px; margin: -20px -8px; } }

/* Botões */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 50px; padding: 0 22px;
  border-radius: 999px; border: 1px solid transparent; font-weight: 600; font-size: 1rem; text-decoration: none; cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .15s; }
.btn:active { transform: scale(.98); }
.btn i { font-size: 1.25rem; }
.btn-escuro { background: var(--noite); color: #fff; box-shadow: 0 14px 28px -14px rgba(6, 16, 31, .7); }
.btn-escuro:hover { box-shadow: 0 18px 34px -14px rgba(6, 16, 31, .8); }
.btn-azul { background: linear-gradient(135deg, var(--azul), var(--azul-forte)); color: #fff; box-shadow: 0 14px 28px -14px rgba(8, 119, 179, .8); }
.btn-claro { background: rgba(255, 255, 255, .85); border-color: var(--borda); color: var(--texto); box-shadow: var(--sombra); }
.btn-zap { background: #DCF5EA; color: var(--ok); }
.btn-peq { min-height: 40px; padding: 0 16px; font-size: .9rem; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }
.btn-bloco { width: 100%; }

/* Etiquetas e chips */
.selo { display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border-radius: 999px; background: rgba(255, 255, 255, .75);
  border: 1px solid var(--borda); font-size: .85rem; color: var(--azul-fundo); font-weight: 500; }
.selo .ponto { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px rgba(11, 122, 85, .15); }
.chip { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 16px; border-radius: 999px; cursor: pointer;
  background: rgba(255, 255, 255, .75); border: 1px solid var(--borda); color: var(--texto-2); font-weight: 500; }
.chip i { font-size: 1.2rem; }
.chip[aria-pressed="true"], .chip.ativo { background: var(--noite); color: #fff; border-color: var(--noite); }

/* Títulos de seção */
.secao { padding-top: 56px; padding-bottom: 56px; } /* só vertical: a margem lateral vem do .wrap */
.secao-cab { max-width: 680px; margin: 0 auto 28px; text-align: center; display: grid; gap: 10px; }
.secao-cab small { color: var(--azul-forte); font-weight: 600; text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; }
.secao-cab h2 { font-size: clamp(1.9rem, 6vw, 2.8rem); }
.secao-cab p { color: var(--texto-2); font-size: 1.05rem; }

/* Grade de cartões */
.grade { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.icone { width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; font-size: 1.5rem; color: var(--azul-fundo);
  background: radial-gradient(circle at 32% 28%, #fff 0 8%, #E6F6FE 30%, var(--azul-ceu) 75%, var(--azul-claro) 100%); }
.cartao h3 { font-size: 1.25rem; margin: 14px 0 6px; }
.cartao p { color: var(--texto-2); }

/* Perguntas frequentes */
.faq { display: grid; gap: 10px; max-width: 780px; margin: 0 auto; }
.faq details { background: var(--vidro-forte); border: 1px solid var(--borda); border-radius: var(--raio-p); padding: 4px 18px; box-shadow: var(--sombra); }
.faq summary { cursor: pointer; list-style: none; padding: 14px 0; font-weight: 500; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--azul-forte); }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 0 16px; color: var(--texto-2); }

/* Rodapé */
.rodape { padding: 36px 0 calc(env(safe-area-inset-bottom, 0px) + 110px); color: var(--texto-2); font-size: .92rem; }
.rodape-grade { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); padding: 26px; }
.rodape h4 { font-size: 1rem; margin-bottom: 10px; color: var(--texto); }
.rodape ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.rodape a { text-decoration: none; }
.rodape a:hover { color: var(--azul-forte); }
.rodape-copia { text-align: center; margin-top: 16px; font-size: .82rem; color: var(--texto-3); }
@media (min-width: 900px) { .rodape { padding-bottom: 40px; } }

/* Barra de navegação do app no celular */
.app-nav { position: fixed; z-index: 60; left: 50%; transform: translateX(-50%); bottom: calc(env(safe-area-inset-bottom, 0px) + 12px);
  display: flex; gap: 4px; padding: 6px; border-radius: 999px; max-width: calc(100vw - 20px);
  background: rgba(255, 255, 255, .82); border: 1px solid var(--borda); box-shadow: var(--sombra-forte);
  backdrop-filter: blur(18px) saturate(1.3); -webkit-backdrop-filter: blur(18px) saturate(1.3); }
.app-nav a { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; min-width: 62px; height: 54px; padding: 0 8px;
  border-radius: 999px; text-decoration: none; color: var(--texto-2); font-size: .66rem; font-weight: 500; }
.app-nav a i { font-size: 1.35rem; }
.app-nav a[aria-current] { background: var(--noite); color: #fff; }
@media (min-width: 900px) { .app-nav { display: none; } }

/* Aparecer ao rolar */
.surge { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.surge.visivel { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .surge { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}