/* Estilos Globais e Temas */
:root {
    --font-family: 'Arial', sans-serif;
    --transition-speed: 0.3s;
}

body {
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
}

header {
    background-color: var(--header-bg);
    color: var(--header-text);
    padding: 1em 0;
    border-bottom: 1px solid var(--border-color);
}

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

header h1 {
    margin: 0;
    font-size: 2em;
}

nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
}

nav ul li {
    margin-left: 25px;
}

nav ul li a {
    color: var(--nav-link-color);
    text-decoration: none;
    font-weight: bold;
    transition: color var(--transition-speed) ease;
}

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

.theme-selector {
    display: flex;
    align-items: center;
}

.theme-selector label {
    margin-right: 10px;
}

#theme-select {
    padding: 8px;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    color: var(--text-color);
}

main section {
    padding: 40px 0;
    border-bottom: 1px solid var(--section-border-color);
}

main section:last-child {
    border-bottom: none;
}

h2 {
    color: var(--heading-color);
    margin-bottom: 20px;
    font-size: 1.8em;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.project-card h3 {
    margin-top: 0;
    color: var(--card-heading-color);
}

.project-card p {
    font-size: 0.95em;
    margin-bottom: 15px;
}

.project-card a {
    color: var(--link-color);
    text-decoration: none;
    font-weight: bold;
    margin-right: 10px;
}

.project-card a:hover {
    text-decoration: underline;
}

.project-card a.github-link {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 12px;
    background-color: var(--button-bg);
    color: var(--button-text);
    border-radius: 5px;
    transition: background-color var(--transition-speed) ease;
}

.project-card a.github-link:hover {
    background-color: var(--button-hover-bg);
    text-decoration: none;
}

#editor textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    box-sizing: border-box;
    margin-bottom: 15px;
    background-color: var(--input-bg);
    color: var(--text-color);
    min-height: 150px;
}

.markdown-preview {
    border: 1px solid var(--border-color);
    padding: 15px;
    border-radius: 5px;
    background-color: var(--preview-bg);
    min-height: 100px;
}

.markdown-preview h1, .markdown-preview h2, .markdown-preview h3 {
    color: var(--heading-color);
}
.markdown-preview ul, .markdown-preview ol {
    margin-left: 20px;
}
.markdown-preview code {
    background-color: var(--code-bg);
    padding: 2px 5px;
    border-radius: 3px;
    font-family: 'Courier New', Courier, monospace;
}
.markdown-preview pre {
    background-color: var(--code-bg);
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
}
.markdown-preview blockquote {
    border-left: 3px solid var(--accent-color);
    padding-left: 10px;
    margin-left: 0;
    font-style: italic;
    color: var(--blockquote-color);
}


footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
}

/* Tema Claro (Padrão) */
body[data-theme="light"] {
    --bg-color: #ffffff;
    --text-color: #333333;
    --heading-color: #1a1a1a;
    --link-color: #007bff;
    --border-color: #dddddd;
    --section-border-color: #eeeeee;
    --header-bg: #f8f9fa;
    --header-text: #333333;
    --nav-link-color: #555555;
    --nav-link-hover-color: #007bff;
    --footer-bg: #f8f9fa;
    --footer-text: #333333;
    --card-bg: #ffffff;
    --card-heading-color: #007bff;
    --input-bg: #ffffff;
    --preview-bg: #f9f9f9;
    --button-bg: #007bff;
    --button-text: #ffffff;
    --button-hover-bg: #0056b3;
    --code-bg: #e9ecef;
    --blockquote-color: #555;
    --accent-color: #007bff;
}

/* Tema Escuro */
body[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #e0e0e0;
    --heading-color: #ffffff;
    --link-color: #61dafb;
    --border-color: #444444;
    --section-border-color: #333333;
    --header-bg: #0d0d0d;
    --header-text: #e0e0e0;
    --nav-link-color: #bbbbbb;
    --nav-link-hover-color: #61dafb;
    --footer-bg: #0d0d0d;
    --footer-text: #e0e0e0;
    --card-bg: #2c2c2c;
    --card-heading-color: #61dafb;
    --input-bg: #2c2c2c;
    --preview-bg: #222222;
    --button-bg: #61dafb;
    --button-text: #1a1a1a;
    --button-hover-bg: #3e9cb8;
    --code-bg: #383838;
    --blockquote-color: #aaa;
    --accent-color: #61dafb;
}

/* Tema Retrô */
body[data-theme="retro"] {
    --bg-color: #f5e6cc; /* Creme */
    --text-color: #5a3e2b; /* Marrom escuro */
    --heading-color: #8c5e3c; /* Marrom médio */
    --link-color: #c7824f; /* Laranja queimado */
    --border-color: #c4a287; /* Marrom claro */
    --section-border-color: #d3b89c;
    --header-bg: #8c5e3c; /* Marrom médio */
    --header-text: #f5e6cc; /* Creme */
    --nav-link-color: #f5e6cc;
    --nav-link-hover-color: #ffe0b2; /* Laranja claro */
    --footer-bg: #8c5e3c;
    --footer-text: #f5e6cc;
    --card-bg: #fff8e1; /* Creme mais claro */
    --card-heading-color: #c7824f;
    --input-bg: #fff8e1;
    --preview-bg: #fdf5e6;
    --button-bg: #c7824f;
    --button-text: #f5e6cc;
    --button-hover-bg: #a5673f;
    --code-bg: #e0d4c0;
    --blockquote-color: #7a5033;
    --accent-color: #c7824f;
    font-family: 'Georgia', serif;
}

/* Tema Futurista */
body[data-theme="futuristic"] {
    --bg-color: #0a0f1e; /* Azul noite profundo */
    --text-color: #c0c5ce; /* Cinza azulado claro */
    --heading-color: #7df9ff; /* Ciano neon */
    --link-color: #f07cff; /* Magenta neon */
    --border-color: #303952; /* Azul aço */
    --section-border-color: #222a3f;
    --header-bg: #121829; /* Azul noite mais escuro */
    --header-text: #7df9ff;
    --nav-link-color: #c0c5ce;
    --nav-link-hover-color: #f07cff;
    --footer-bg: #121829;
    --footer-text: #c0c5ce;
    --card-bg: #1a2035; /* Azul noite médio */
    --card-heading-color: #7df9ff;
    --input-bg: #1a2035;
    --preview-bg: #151a2e;
    --button-bg: #f07cff;
    --button-text: #0a0f1e;
    --button-hover-bg: #d953e8;
    --code-bg: #252c40;
    --blockquote-color: #a0a5ae;
    --accent-color: #7df9ff;
    font-family: 'Orbitron', sans-serif; /* Fonte futurista, pode precisar de importação */
}

/* Aplicar cores de fundo e texto globais */
body {
    background-color: var(--bg-color);
    color: var(--text-color);
}

/* Responsividade */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        text-align: center;
    }
    nav ul {
        flex-direction: column;
        margin-top: 15px;
    }
    nav ul li {
        margin: 10px 0;
    }
    .theme-selector {
        margin-top: 15px;
    }
}