/*
    ESTILOS CSS GLOBAIS - TEMA IA PRETO E AZUL ELÉTRICO
    Define variáveis, tipografia e layout base para todas as páginas.
*/

/* Variáveis de Cor */
:root {
    --color-bg-primary: #0a0a0a; /* Fundo Principal (Preto) */
    --color-primary-blue: #007BFF; /* Azul Principal (Destaque: Azul Elétrico) */
    --color-secondary-section: #0A0A0A; /* Azul Seção 1 (Slightly darker) */
    --color-tertiary-section: #0A0A0A; /* Azul Seção 2 (Medium dark blue) */
    --color-dark-section: #0A0A0A; /* Azul Seção 3/Rodapé (Very dark blue) */
    --color-text-light: #ffffff;
    --color-menu-bg: #111010; /* Menu pode ser branco (requisito) */
    --color-menu-text: #007BFF;
}

/* 1. Reset e Configuração de Tipografia Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--color-text-light);
    background-color: var(--color-bg-primary);
    line-height: 1.6;
    scroll-behavior: smooth;
}

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    color: var(--color-primary-blue); /* Destaque dos Títulos */
    margin-bottom: 1rem;
    /* Destaque adicional para legibilidade */
    text-shadow: 0 0 5px rgb(12, 11, 85); 
}

p {
    margin-bottom: 1rem;
    font-family: 'Open Sans', sans-serif;
}

/* 2. Menu de Navegação (<header> e <nav>) */
header {
    background-color: var(--color-menu-bg);
    padding: 1rem 5%;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 10px rgb(9, 48, 119);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo a {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary-blue);
    text-decoration: none;
}

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

nav ul li a {
    text-decoration: none;
    color: var(--color-menu-text);
    padding: 0.5rem 0.8rem;
    border-radius: 6px;
    transition: background-color 0.3s, color 0.3s;
    font-weight: 600;
}

/* Estilo Hover usando cores da marca (Azul Primário) */
nav ul li a:hover {
    background-color: var(--color-primary-blue);
    color: var(--color-text-light);
}

/* 3. Conteúdo Principal e Layout */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 5%;
}

section {
    padding: 3rem 0;
    border-radius: 12px;
    margin-bottom: 2rem;
    box-shadow: 0 0 20px rgb(9, 48, 119);
}

/* Requisito: Cada seção com background diferente */
#hero { /* Index Banner */
    background-color: var(--color-bg-primary); /* Mantém o fundo preto/primário */
    text-align: center;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    /* Removida a URL do placehold.co, o fundo será a cor primária (preto) */
    background-image: none; 
    background-size: cover;
    background-position: center;
    margin-top: -2rem; /* Compensar padding do main */
    padding-top: 5rem;
}

.section-a { background-color: var(--color-secondary-section); }
.section-b { background-color: var(--color-tertiary-section); }
.section-c { background-color: var(--color-dark-section); }

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

.content-grid.reverse {
    grid-template-areas: "media text";
}
.content-grid.reverse .text-content {
    grid-area: text;
}
.content-grid.reverse .media-content {
    grid-area: media;
}

.media-content img,
.media-content video,
.media-content audio {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    border: 3px solid var(--color-primary-blue);
}

.image-caption {
    font-family: 'Roboto Mono', monospace;
    font-size: 0.9rem;
    color: #CCCCCC;
    text-align: center;
    display: block;
    margin-top: 0.5rem;
}

/* 4. Estilos de Listas */
.list-group {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.list-group ol, .list-group ul {
    margin-top: 0.5rem;
}

/* 1. Lista com Marcadores Azuis */
.styled-list-1 li {
    list-style: none;
}
.styled-list-1 li::before {
    content: "🔷";
    margin-right: 0.5rem;
    color: var(--color-primary-blue);
}

/* 2. Lista Numerada com Fundo */
.styled-list-2 li {
    background-color: rgba(0, 123, 255, 0.1);
    padding: 0.3rem 0.5rem;
    margin-bottom: 0.2rem;
    border-left: 4px solid var(--color-primary-blue);
    font-family: 'Roboto Mono', monospace;
}

/* 3. Lista de Tópicos com Ícone de Destaque */
.styled-list-3 li {
    list-style: none;
    font-weight: 600;
}
.styled-list-3 li::before {
    content: ">>>";
    margin-right: 0.5rem;
    color: var(--color-text-light);
}

/* 4. Lista em Itálico */
.styled-list-4 li {
    font-style: italic;
    color: #CCCCCC;
}

/* 5. Lista de Tarefas (Checkboxes visuais) */
.styled-list-5 li {
    list-style: none;
    padding-left: 1.5rem;
    position: relative;
}
.styled-list-5 li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #32CD32; /* Verde para 'ok' */
    font-weight: bold;
}

/* 6. Lista de Definições Simples */
.styled-list-6 {
    list-style-type: upper-roman;
    color: var(--color-primary-blue);
}
.styled-list-6 li {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

/* 5. Galeria (Página Inovações) */
.gallery-container {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
}

.gallery-item {
    background-color: var(--color-bg-primary);
    padding: 1.5rem;
    border-radius: 10px;
    max-width: 350px;
    text-align: center;
    box-shadow: 0 0 15px rgba(9, 48, 119);
    transition: transform 0.3s;
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(9, 48, 119);
}

.gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 6px;
    border: 2px solid var(--color-primary-blue);
    margin-bottom: 1rem;
}

.gallery-item h3 {
    color: var(--color-primary-blue);
    font-size: 1.4rem;
    font-family: 'Montserrat', sans-serif;
}

.gallery-item p {
    font-size: 0.95rem;
    color: #CCCCCC;
    font-family: 'Inter', sans-serif;
}

/* 6. Formulário (Página Ajuda) */
form {
    background-color: var(--color-dark-section);
    padding: 2rem;
    border-radius: 10px;
}

fieldset {
    border: 2px solid var(--color-primary-blue);
    padding: 1.5rem;
    margin-bottom: 2rem;
    border-radius: 8px;
}

legend {
    color: var(--color-text-light);
    background-color: var(--color-primary-blue);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

.form-group {
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
}

label {
    margin-bottom: 0.4rem;
    font-weight: 600;
    color: var(--color-text-light);
    font-family: 'Roboto Mono', monospace;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
    padding: 0.8rem;
    border: 1px solid var(--color-primary-blue);
    border-radius: 4px;
    background-color: #1a1a1a;
    color: var(--color-text-light);
    font-family: 'Inter', sans-serif;
    transition: border-color 0.3s;
    width: 100%;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-text-light);
}

.checkbox-group, .radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 0.5rem;
}

.checkbox-group label, .radio-group label {
    display: flex;
    align-items: center;
    font-weight: 400;
    margin-bottom: 0;
}

.checkbox-group input, .radio-group input {
    margin-right: 0.5rem;
    width: auto;
}

.submit-btn {
    display: block;
    width: 100%;
    padding: 1rem;
    background-color: var(--color-primary-blue);
    color: var(--color-text-light);
    border: none;
    border-radius: 8px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    box-shadow: 0 4px 10px rgba(9, 48, 119);
    margin-top: 1rem;
}

.submit-btn:hover {
    background-color: #0099FF; /* Um azul um pouco mais claro no hover */
    transform: translateY(-2px);
}

/* 7. Rodapé (<footer>) */
footer {
    background-color: var(--color-bg-primary);
    color: #CCCCCC;
    padding: 2rem 5%;
    border-top: 5px solid var(--color-primary-blue);
    font-family: 'Open Sans', sans-serif;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto 1.5rem;
    gap: 2rem;
}

.footer-info, .footer-links {
    flex: 1 1 45%; /* 2 divisões de informações */
    min-width: 300px;
}

.footer-info h4, .footer-links h4 {
    color: var(--color-primary-blue);
    margin-bottom: 1rem;
    font-family: 'Montserrat', sans-serif;
}

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

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

.footer-links ul li a:hover {
    color: var(--color-primary-blue);
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1rem;
}

.social-icons a {
    color: var(--color-text-light);
    font-size: 1.8rem;
    transition: color 0.3s, transform 0.2s;
    text-decoration: none;
}

.social-icons a:hover {
    color: var(--color-primary-blue); /* Hover com cor da marca */
    transform: scale(1.1);
}

.footer-bottom {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid var(--color-tertiary-section);
    font-size: 0.9rem;
}

/* 8. Estilos Responsivos */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
    }

    nav ul {
        flex-direction: column;
        gap: 0.5rem;
        margin-top: 1rem;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }

    .content-grid.reverse {
        grid-template-areas: none; /* Reset order for mobile */
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-info, .footer-links {
        min-width: 100%;
    }

    .social-icons {
        justify-content: space-around;
        gap: 0;
    }
}