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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Cabeçalho */
header {
    background: #1a73e8;
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover {
    text-decoration: underline;
}

/* Seção Hero */
.hero {
    background: url('https://via.placeholder.com/1200x400') no-repeat center/cover;
    padding: 4rem 2rem;
    text-align: center;
    color: white;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero .btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: #1a73e8;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 1rem;
}

.hero .btn:hover {
    background: #1557b0;
}

/* Seção de Posts */
.posts {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.posts h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.post-card {
    background: #f9f9f9;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

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

.post-card h3 {
    padding: 1rem;
    font-size: 1.5rem;
}

.post-card p {
    padding: 0 1rem 1rem;
}

.post-card .btn {
    display: block;
    margin: 1rem;
    padding: 0.5rem 1rem;
    background: #1a73e8;
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 5px;
}

.post-card .btn:hover {
    background: #1557b0;
}

.toggle-articles {
    display: block;
    margin: 1rem auto;
    padding: 0.8rem 1.5rem;
    background: #1a73e8;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.toggle-articles:hover {
    background: #1557b0;
}

/* Sobre */
#sobre {
    background: #f4f4f4;
    padding: 2rem;
    text-align: center;
}

/* Rodapé */
footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
}

.social-links a {
    color: white;
    margin: 0 1rem;
    text-decoration: none;
}

.social-links a:hover {
    text-decoration: underline;
}

/* Responsividade */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
    }

    nav ul {
        flex-direction: column;
        text-align: center;
    }

    .hero h1 {
        font-size: 1.8rem;
    }
    /* Estilização do botão */
.signup-button-container {
    text-align: center;
    margin: 20px auto;
    max-width: 400px;
}

.signup-button {
    display: inline-block;
    background-color: #007bff;
    color: #ffffff;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 4px;
    font-family: Arial, sans-serif;
    font-size: 16px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.signup-button:hover {
    background-color: #0056b3;
}

/* Responsividade */
@media (max-width: 600px) {
    .signup-button-container {
        max-width: 90%;
    }

    .signup-button {
        padding: 10px 20px;
        font-size: 14px;
    }
}
}