/* =========================================
   RESET BÁSICO
========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

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

/* =========================================
   CABEÇALHO
========================================= */
header {
    background-color: #333;
    color: #fff;
    padding: 20px 0;
}

header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

header .logo img {
    height: 150px;
}

header nav ul {
    list-style: none;
    display: flex;
    gap: 15px;
}

header nav ul li a {
    color: #fff;
    text-decoration: none;
}

header .search-bar input {
    padding: 5px;
    border: none;
    border-radius: 3px;
}

/* =========================================
   LAYOUT PRINCIPAL
========================================= */
main {
    display: flex;
    margin-top: 20px;
    gap: 20px;
}

.sidebar {
    flex: 0 0 18%;
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.sidebar h2 {
    margin-bottom: 10px;
}

.sidebar ul {
    list-style: none;
}

.sidebar ul li {
    margin-bottom: 10px;
}

.sidebar ul li a {
    color: #333;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.sidebar ul li img {
    width: 60px;
    height: 60px;
    margin-right: 10px;
}

/* =========================================
   POSTS E ARTIGOS
========================================= */
.posts {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.post, .artigo {
    background-color: #fff;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.1);
}

.post h2, .artigo h2 {
    margin-bottom: 10px;
}

.post .meta, .artigo .meta {
    font-size: 0.9em;
    color: #666;
    margin-bottom: 10px;
}

.post a, .link-artigo {
    color: #007bff;
    text-decoration: none;
}

.link-artigo {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 12px;
    background-color: #007bff;
    color: #fff;
    border-radius: 5px;
}

.link-artigo:hover {
    background-color: #0056b3;
}

/* =========================================
   LISTA DE ARTIGOS PEQUENOS (PÁGINA INICIAL) - 2 POR LINHA
========================================= */
.section-post-articles {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
    justify-content: flex-start;
}

.section-post-articles .article-box {
    flex: 0 0 calc(50% - 12px); /* 2 por linha no desktop */
    max-width: calc(50% - 12px);
    height: 160px;
    background-color: #fff;
    border: 1px solid #ccc;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 10px;
    overflow: hidden;
}

.section-post-articles .article-box img {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border-radius: 5px;
}

.section-post-articles .article-box h3 {
    font-size: 13px;
    color: #333;
    margin-top: 5px;
}

.section-post-articles .article-box p {
    font-size: 11px;
    color: #666;
    display: none;
}

/* =========================================
   CALCULADORA (EXTRA)
========================================= */
.calculator {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 10px;
    margin-bottom: 20px;
}

.calculator input[type="text"],
.calculator input[type="number"] {
    grid-column: span 4;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 24px;
    text-align: right;
}

.calculator .btn {
    padding: 15px;
    border: none;
    border-radius: 5px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.calculator .btn.clear {
    background-color: #ff6347;
    color: #fff;
}

.calculator .btn.equal {
    background-color: black;
    color: #fff;
}

.calculator .btn:hover {
    background-color: #ccc;
}

/* =========================================
   ANÚNCIOS
========================================= */
.ads {
    flex: 0 0 18%;
}

.ads .ad {
    background-color: #fff;
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 5px;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.1);
    text-align: center;
}

/* =========================================
   COMENTÁRIOS E FORMULÁRIOS
========================================= */
form {
    margin-top: 20px;
}

form div {
    margin-bottom: 10px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input[type="text"],
input[type="email"],
textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button[type="submit"] {
    padding: 10px 20px;
    background-color: #5cb85c;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

button[type="submit"]:hover {
    background-color: #4cae4c;
}

.comentario {
    border: 1px solid #ddd;
    padding: 10px;
    margin-bottom: 10px;
    background-color: #f9f9f9;
}

.comentario p {
    margin: 5px 0;
}

.comentario strong {
    font-weight: bold;
}

/* =========================================
   IMAGENS DE ARTIGO
========================================= */
.article-image, .imagem-artigo {
    width: 100%;
    height: auto;
    max-width: 700px;
    display: block;
    margin: 0 auto;
    border-radius: 5px;
}

/* =========================================
   RODAPÉ
========================================= */
footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 20px;
    border-top: 5px solid #0066cc;
}

/* =========================================
   RESPONSIVIDADE
========================================= */
@media (max-width: 992px) {
    main {
        flex-direction: column;
    }
    .sidebar, .ads {
        flex: 1 1 100%;
        margin: 0;
    }
    .section-post-articles {
        justify-content: center;
    }
    .section-post-articles .article-box {
        flex: 0 0 48%; /* 2 por linha em tablets */
        max-width: 48%;
        height: auto;
    }
}

@media (max-width: 600px) {
    .section-post-articles .article-box {
        flex: 0 0 100%; /* 1 por linha no mobile */
        max-width: 100%;
    }
    header .logo img {
        height: 100px;
    }
}