/* ============ VOX IDIOMAS - Folha de estilo ============ */
:root {
  --azul: #1a3a6b;
  --azul-claro: #2d5aa0;
  --amarelo: #f5b921;
  --cinza-claro: #f4f6f9;
  --texto: #333;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  color: var(--texto);
  line-height: 1.6;
}

/* ---------- Cabeçalho ---------- */
header {
  background: var(--azul);
  padding: 15px 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
}

.logo {
  color: #fff;
  font-size: 1.6rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 1px;
}
.logo span { color: var(--amarelo); }

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: .95rem;
  transition: color .2s;
}
nav a:hover { color: var(--amarelo); }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--azul) 0%, var(--azul-claro) 100%);
  color: #fff;
  text-align: center;
  padding: 90px 5% 70px;
}
.hero h1 { font-size: 2.4rem; margin-bottom: 15px; }
.hero p  { font-size: 1.15rem; max-width: 640px; margin: 0 auto 30px; }
.btn {
  display: inline-block;
  background: var(--amarelo);
  color: var(--azul);
  padding: 14px 34px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 700;
  transition: transform .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,.25); }

/* ---------- Seções ---------- */
section { padding: 60px 5%; }
section h2 {
  text-align: center;
  color: var(--azul);
  font-size: 1.9rem;
  margin-bottom: 35px;
}
.cinza { background: var(--cinza-claro); }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
  max-width: 1000px;
  margin: 0 auto;
}
.card {
  background: #fff;
  border-radius: 12px;
  padding: 30px 25px;
  box-shadow: 0 3px 12px rgba(0,0,0,.08);
  text-align: center;
}
.card h3 { color: var(--azul); margin-bottom: 12px; font-size: 1.25rem; }

/* ---------- Conteúdo interno ---------- */
.conteudo { max-width: 800px; margin: 0 auto; }
.conteudo h2 { text-align: left; margin-bottom: 20px; }
.conteudo p { margin-bottom: 16px; text-align: justify; }

/* ---------- Rodapé ---------- */
footer {
  background: var(--azul);
  color: #cfd8ea;
  text-align: center;
  padding: 35px 5%;
  font-size: .9rem;
  line-height: 1.9;
}
footer strong { color: #fff; }
footer a { color: var(--amarelo); text-decoration: none; }

/* ---------- Botão WhatsApp flutuante ---------- */
.whatsapp-flutuante {
  position: fixed;
  bottom: 22px;
  right: 22px;
  background: #25d366;
  color: #fff;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 1.7rem;
  box-shadow: 0 4px 12px rgba(0,0,0,.3);
  z-index: 200;
}
.whatsapp-flutuante:hover { background: #1eb856; }

@media (max-width: 600px) {
  .hero h1 { font-size: 1.7rem; }
  nav ul { gap: 12px; }
}

/* ---------- Lista de aulas ---------- */
.lista-aulas { list-style: none; max-width: 640px; margin: 0 auto; }
.lista-aulas li { border-bottom: 1px solid #e0e0e0; }
.lista-aulas a {
  display: block;
  padding: 12px 10px;
  color: var(--azul);
  text-decoration: none;
  font-weight: 600;
}
.lista-aulas a:hover { background: var(--cinza-claro); color: var(--azul-claro); }

/* ---------- Botão secundário ---------- */
.btn-outline {
  background: transparent;
  border: 2px solid var(--amarelo);
  color: var(--amarelo);
}
.btn-outline:hover { background: var(--amarelo); color: var(--azul); }

/* ---------- Elementos reais do site ---------- */
.banner { width: 100%; display: block; }

.duas-colunas {
  display: flex;
  gap: 30px;
  align-items: flex-start;
  margin-top: 25px;
}
.duas-colunas > div { flex: 1; }
.foto-lateral { width: 33%; max-width: 300px; border-radius: 8px; }

.imagem-central { width: 100%; max-width: 720px; border-radius: 8px; }

.botoes-midia {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 25px;
}

.secao-facebook {
  background: linear-gradient(rgba(26,58,107,.75), rgba(26,58,107,.75)), url('../img/fundo.jpg') center/cover;
  color: #fff;
  text-align: center;
}
.secao-facebook h2 { color: #fff; }

@media (max-width: 700px) {
  .duas-colunas { flex-direction: column; }
  .foto-lateral { width: 100%; max-width: 100%; }
}