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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

main {
    text-align: center;
    font-weight: bold;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Cabeçalho */
header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.cabecalho {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
}

.logo-img {
    height: 40px;
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    padding: 5px 10px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

nav ul li a:hover,
nav ul li a.active {
  background-color: #219653;
  color: white;
  text-decoration: none;
}

/* Destaque */
.destaque {
    height: 400px;
    position: relative;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.destaque h1 {
    font-size: 2.8rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.destaque-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
}

.sobreposicao {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.conteudo-destaque {
    position: relative;
    z-index: 2;
    padding: 20px;
}

/* Introdução */
.intro-texto {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    font-size: 1.1rem;
    line-height: 1.7;
    color: #444;
}

/* Tipos de Resíduos */
.tipos-residuos {
    padding: 60px 0;
}

.tipos-residuos h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.tipos-residuos h2 i {
    margin-right: 10px;
}

/* Grade de Benefícios */
.grade-beneficios {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.cartao-beneficio {
    background-color: #ffffff;
    padding: 30px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.cartao-beneficio:hover {
    transform: translateY(-5px);
}

.icon {
    font-size: 2rem;
    color: #800080;
    margin-bottom: 15px;
}

.cartao-beneficio h3 {
    margin-bottom: 15px;
    color: #333;
}

/* Listas */
.lista-processo {
    counter-reset: passo;
    list-style-type: none;
}

.lista-processo li {
    position: relative;
    margin-bottom: 8px;
}

.lista-processo li:before {
    content: counter(passo);
    counter-increment: passo;
    color: #800080;
    font-weight: bold;
    margin-right: 10px;
    position: relative;
}

.lista-itens {
    text-align: left;
    padding-left: 0;
}

.lista-itens li {
    margin-bottom: 8px;
    padding-left: 25px;
    position: relative;
}

.lista-itens li:before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 15px;
    height: 2px;
    background-color: #800080;
    /* Roxo no lugar do verde */
}

/* Seção de Dicas */
.dicas-section {
    margin: 60px 0;
}

.dicas-section h2 {
    margin-bottom: 30px;
}

.dicas-section h2 i {
    margin-right: 10px;
}

.dicas-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.dica-item {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.dica-item:hover {
    transform: translateY(-5px);
}

.dica-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.dica-item h3 {
    color: #800080;
    /* Roxo no lugar do verde */
    margin: 15px 20px 10px;
}

.dica-item p {
    padding: 0 20px 20px;
    color: #555;
    line-height: 1.5;
}

/* Curiosidades (MANTIDA ESTRUTURA, COR ALTERADA) */
.card-curiosidade {
    background-color: #800080;
    /* Roxo no lugar do verde */
    color: white;
    padding: 40px;
    border-radius: 8px;
    text-align: center;
    margin: 60px 0;
}

.card-curiosidade h2 {
    margin-bottom: 25px;
    font-size: 1.8rem;
}

.card-curiosidade h2 i {
    margin-right: 10px;
}

.lista-impacto {
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    max-width: 600px;
    margin: 20px auto 30px;
    padding: 0;
}

.lista-impacto li {
    background: rgba(255, 255, 255, 0.15);
    padding: 10px 20px;
    border-radius: 30px;
    list-style: none;
}

/* Botão Roxo (SUBSTITUI O VERDE) */
.btn {
    display: inline-block;
    padding: 8px 12px;
    background-color: #800080;
    /* Roxo no lugar do verde */
    color: white;
    border-radius: 4px;
    text-align: center;
    font-weight: bold;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.btn-roxo {
    background-color: #993399 !important;
    padding: 12px 30px !important;
    font-size: 1rem !important;
    margin-top: 20px;
}

.btn-roxo:hover {
    background-color: #660066 !important;
    color: white !important;
}

.btn-roxo i {
    margin-right: 8px;
}

/* Alerta Especial para Radioativos (NOVO) */
.alerta-importante {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 15px;
    border-radius: 5px;
    margin: 20px 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.alerta-importante i {
    font-size: 1.5rem;
    margin-right: 10px;
}

.alerta-importante p {
    margin: 0;
}

/* Rodapé */
footer {
    background-color: #2C3E50;
    color: white;
    padding: 40px 0;
    margin-top: 60px;
}

.conteudo-rodape {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.logo-rodape,
.contato-info {
    margin-bottom: 20px;
}

.contato-info {
    margin-top: 0;
}

.rodape-logo-img {
    height: 50px;
    margin-bottom: 15px;
}

.redes-sociais-icon {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.redes-sociais-icon a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
}

.redes-sociais-icon a i {
    color: white;
}

.redes-sociais-icon a:hover:nth-child(1) {
    background-color: #E1306C;
    text-decoration: none;
}

.redes-sociais-icon a:hover:nth-child(2) {
    background-color: #1877F2;
    text-decoration: none;
}

.redes-sociais-icon a:hover:nth-child(3) {
    background-color: #0A66C2;
    text-decoration: none;
}

.redes-sociais-icon a:hover:nth-child(4) {
    background-color: #1DA1F2;
    text-decoration: none;
}

/* Responsividade */
@media (max-width: 768px) {
    .cabecalho {
        flex-direction: column;
    }

    nav ul {
        margin-top: 15px;
    }

    nav ul li {
        margin: 0 10px;
    }

    .destaque {
        height: 300px;
    }

    .destaque h1 {
        font-size: 2.2rem;
    }

    .destaque p {
        font-size: 1.2rem;
    }

    .conteudo-rodape {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .contato-info {
        margin-top: 30px;
    }
}

@media (max-width: 480px) {
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }

    nav ul li {
        margin: 5px;
    }

    nav ul li a {
        text-decoration: none;
    }

    .grade-beneficios,
    .dicas-container {
        grid-template-columns: 1fr;
    }

    .lista-impacto {
        flex-direction: column;
        gap: 10px;
    }
}