/* RESET BÁSICO */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Roboto', sans-serif; line-height: 1.6; color: #333; background-color: #f4f4f4; }
.container { width: 90%; max-width: 1200px; margin: 0 auto; padding: 20px 0; }

/* CORES PRINCIPAIS */
:root {
    --primary-color: #007bff;
    --secondary-color: #28a745;
    --text-color: #333;
    --light-bg: #e9ecef;
}

h1, h2, h3 { margin-bottom: 15px; font-weight: 700; color: var(--text-color); }
h2 { font-size: 2.2rem; }
p { margin-bottom: 20px; }

/* HEADER/NAVEGAÇÃO COMUM */
header { background: #fff; box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); position: sticky; top: 0; z-index: 1000; }
.header-content { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.8rem; color: var(--primary-color); }
#nav-menu ul { list-style: none; display: flex; }
#nav-menu ul li a { text-decoration: none; color: var(--text-color); padding: 10px 15px; display: block; transition: color 0.3s; }
#nav-menu ul li a:hover { color: var(--primary-color); }
.menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--primary-color); }

/* BOTÕES COMUNS */
.btn { display: inline-block; padding: 12px 25px; text-decoration: none; border-radius: 5px; font-weight: 700; margin-right: 15px; transition: background-color 0.3s; }
.btn-primary { background-color: var(--primary-color); color: #fff; }
.btn-secondary { background-color: transparent; border: 2px solid var(--primary-color); color: var(--primary-color); }
.btn-secondary:hover { background-color: var(--primary-color); color: #fff; }

/* SEÇÕES DE CONTEÚDO GENÉRICAS */
.content-page { padding: 80px 0; text-align: center; min-height: 50vh; }
.light-bg { background-color: var(--light-bg); }

/* FOOTER COMUM */
footer { background-color: #333; color: #fff; text-align: center; padding: 20px 0; font-size: 0.9rem; }
footer a { color: var(--primary-color); text-decoration: none; }

/* RESPONSIVIDADE COMUM (para o menu) */
@media (max-width: 768px) {
    #nav-menu { display: none; width: 100%; text-align: center; position: absolute; top: 65px; left: 0; background: #fff; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); }
    #nav-menu.active { display: block; }
    #nav-menu ul { flex-direction: column; padding: 10px 0; }
    .menu-toggle { display: block; }
    .btn { display: block; margin: 10px 0; }
}