/* Estilos principais para o blog Espectro Azul */

:root {
    --primary-color: #4A90E2;
    --secondary-color: #50E3C2;
    --text-color: #333333;
    --light-bg: #F5F5F5;
    --white: #FFFFFF;
    --dark-gray: #444444;
    --light-gray: #CCCCCC;
    --font-main: 'Arial', sans-serif;
    --font-headings: 'Montserrat', sans-serif;
}

/* Reset e estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    margin-bottom: 1rem;
    color: var(--primary-color);
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1.5rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

ul, ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Layout e containers */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col {
    padding: 0 15px;
    flex: 1;
}

/* Header */
header {
    background-color: var(--white);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.logo span {
    color: var(--secondary-color);
}

/* Navegação */
nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

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

nav ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
    padding: 5px 0;
    position: relative;
}

nav ul li a:hover {
    color: var(--primary-color);
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s;
}

nav ul li a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--primary-color);
    cursor: pointer;
}

/* Hero section */
.hero {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--white);
}

.hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px;
}

.btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 12px 24px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #3bc6a7;
}

/* Seções */
.section {
    padding: 80px 0;
}

.section:nth-child(even) {
    background-color: var(--light-bg);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.2rem;
    color: var(--primary-color);
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background-color: var(--secondary-color);
    margin: 15px auto 0;
}

/* Cards */
.card {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.card-img {
    height: 200px;
    background-color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.card-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.card-text {
    margin-bottom: 20px;
    flex-grow: 1;
}

.card-link {
    align-self: flex-start;
    font-weight: bold;
}

/* Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

/* Features */
.feature {
    text-align: center;
    padding: 30px;
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-title {
    margin-bottom: 15px;
}

/* CTA Section */
.cta {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.cta h2 {
    color: var(--white);
    margin-bottom: 20px;
}

.cta p {
    max-width: 700px;
    margin: 0 auto 30px;
}

/* Artigos */
.article {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
}

.article h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.article h2 {
    font-size: 1.8rem;
    margin: 40px 0 20px;
}

.article h3 {
    font-size: 1.4rem;
    margin: 30px 0 15px;
}

.article p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.article ul, .article ol {
    margin-bottom: 20px;
    padding-left: 30px;
}

.article li {
    margin-bottom: 10px;
}

.article img {
    margin: 30px auto;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.article-meta {
    color: var(--dark-gray);
    font-size: 0.9rem;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
}

.article-meta span {
    margin-right: 20px;
}

.article-meta i {
    margin-right: 5px;
}

/* Sidebar */
.sidebar {
    padding: 30px;
    background-color: var(--light-bg);
    border-radius: 8px;
    margin-bottom: 30px;
}

.sidebar h3 {
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--light-gray);
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar ul li {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--light-gray);
}

.sidebar ul li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

/* Formulários */
.form-group {
    margin-bottom: 20px;
}

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

input, textarea, select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--light-gray);
    border-radius: 4px;
    font-family: var(--font-main);
    font-size: 1rem;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 5px rgba(74, 144, 226, 0.3);
}

textarea {
    min-height: 150px;
    resize: vertical;
}

/* Footer */
footer {
    background-color: #333;
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-col h4 {
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.footer-col ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col ul li a:hover {
    color: var(--white);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #444;
    font-size: 0.9rem;
}

/* Utilitários */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

/* Media Queries */
@media (max-width: 992px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.3rem; }
    .hero { padding: 60px 0; }
    .hero h1 { font-size: 2.5rem; }
    .section { padding: 60px 0; }
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        text-align: center;
    }
    
    nav ul {
        margin-top: 15px;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0 10px;
    }
    
    .hero { padding: 50px 0; }
    .hero h1 { font-size: 2rem; }
    .hero p { font-size: 1rem; }
    
    .section { padding: 50px 0; }
    .section-title { font-size: 1.8rem; }
    
    .grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 576px) {
    body { font-size: 14px; }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        height: 100vh;
        background-color: var(--white);
        box-shadow: 2px 0 10px rgba(0,0,0,0.1);
        transition: left 0.3s ease;
        z-index: 1000;
    }
    
    nav.active {
        left: 0;
    }
    
    nav ul {
        flex-direction: column;
        margin-top: 80px;
    }
    
    nav ul li {
        margin: 10px 0;
        width: 100%;
        text-align: center;
    }
    
    nav ul li a {
        display: block;
        padding: 10px;
    }
    
    .close-menu {
        position: absolute;
        top: 20px;
        right: 20px;
        font-size: 24px;
        background: none;
        border: none;
        color: var(--primary-color);
        cursor: pointer;
    }
    
    .overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0,0,0,0.5);
        display: none;
        z-index: 999;
    }
    
    .overlay.active {
        display: block;
    }
    
    .hero h1 { font-size: 1.8rem; }
    .section-title { font-size: 1.6rem; }
    
    .grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
}