/*
 * Arquivo: style.css
 * Descrição: Folha de estilos UNIFICADA e DEFINITIVA para a área pública da Plataforma de Cursos.
 * Esta versão foi completamente revisada para garantir consistência visual e responsividade.
*/

/* --- 1. Configuração Base e Variáveis Globais --- */
:root {
    --cor-primaria: #003366; /* Azul escuro do logo */
    --cor-primaria-hover: #002244;
    --cor-secundaria: #ff9900; /* Laranja vibrante */
    --cor-sucesso: #198754;
    --cor-info: #0dcaf0;
    --cor-fundo: #f4f7f9;
    --cor-superficie: #ffffff;
    --cor-texto-principal: #212529;
    --cor-texto-secundario: #6c757d;
    --cor-borda: #dee2e6;
    --fonte-principal: 'Roboto', sans-serif;
    --raio-borda: 8px;
    --sombra-card: 0 4px 12px rgba(0,0,0,0.08);
    --sombra-card-hover: 0 8px 24px rgba(0,0,0,0.12);
}

body {
    font-family: var(--fonte-principal);
    background-color: var(--cor-fundo);
    color: var(--cor-texto-principal);
    margin: 0;
    line-height: 1.6;
}

/* --- 2. Componentes Reutilizáveis --- */
.btn { display: inline-block; font-weight: 500; text-align: center; cursor: pointer; border: 1px solid transparent; padding: 10px 20px; font-size: 1rem; border-radius: var(--raio-borda); text-decoration: none; transition: all 0.2s; }
.btn-primary { color: #fff; background-color: var(--cor-primaria); border-color: var(--cor-primaria); }
.btn-primary:hover { background-color: var(--cor-primaria-hover); border-color: var(--cor-primaria-hover); }
.btn-secondary { color: var(--cor-secundaria); background-color: transparent; border-color: var(--cor-secundaria); }
.btn-secondary:hover { color: #fff; background-color: var(--cor-secundaria); border-color: var(--cor-secundaria); }
.btn-success { color: #fff; background-color: var(--cor-sucesso); border-color: var(--cor-sucesso); }
.btn-info { color: #fff; background-color: var(--cor-info); border-color: var(--cor-info); }
.btn-link { font-weight: 500; color: var(--cor-primaria); text-decoration: underline; background: none; border: none; padding: 0; }
.message { padding: 1rem; border-radius: var(--raio-borda); margin-bottom: 1rem; font-weight: 500; text-align: center; }
.message.error { background-color: #f8d7da; color: #842029; }
.message.success { background-color: #d1e7dd; color: #0f5132; }

/* --- 3. Layout Principal --- */
.header { background-color: var(--cor-superficie); padding: 16px 32px; box-shadow: 0 2px 4px rgba(0,0,0,0.05); display: flex; justify-content: space-between; align-items: center; }
.header .logo { font-size: 1.5rem; font-weight: 700; color: var(--cor-primaria); text-decoration: none; display: flex; align-items: center; }
.header .logo-img { max-height: 40px; width: auto; }
.header-nav { position: relative; }
.user-menu { cursor: pointer; }
.user-info { display: flex; align-items: center; gap: 12px; padding: 5px; }
.user-avatar { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.user-menu:hover .dropdown-content { display: block; }
.dropdown-content { display: none; position: absolute; right: 0; background-color: var(--cor-superficie); min-width: 180px; box-shadow: 0 8px 16px rgba(0,0,0,0.1); z-index: 100; border-radius: var(--raio-borda); overflow: hidden; }
.dropdown-content a { color: var(--cor-texto-principal); padding: 12px 16px; text-decoration: none; display: block; }
.dropdown-content a:hover { background-color: #f1f1f1; }
.main-container { max-width: 1200px; margin: 40px auto; padding: 0 20px; }
.page-title { font-size: 2.25rem; font-weight: 700; text-align: center; color: var(--cor-texto-principal); margin-bottom: 40px; }

/* --- 4. Estilos Específicos por Página --- */
.auth-container { display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 20px; box-sizing: border-box; }
.auth-card { background-color: var(--cor-superficie); padding: 40px; border-radius: 16px; box-shadow: 0 4px 24px rgba(0,0,0,0.1); width: 100%; max-width: 400px; text-align: center; }
.auth-card h1 { margin-top: 0; margin-bottom: 24px; color: var(--cor-primaria); }
.auth-card .form-group { margin-bottom: 1rem; text-align: left; }
.auth-card .form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; }
.auth-card .form-group input { width: 100%; padding: 12px; border: 1px solid var(--cor-borda); border-radius: var(--raio-borda); box-sizing: border-box; }
.auth-card .btn-primary { width: 100%; padding: 12px; margin-top: 0.5rem; }
.auth-card .link { margin-top: 1.5rem; font-size: 0.9rem; }

.cursos-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 30px; }
.curso-card { background-color: var(--cor-superficie); border-radius: 12px; box-shadow: var(--sombra-card); overflow: hidden; display: flex; flex-direction: column; height: 100%; text-decoration: none; color: inherit; transition: all 0.3s; }
.curso-card:hover { transform: translateY(-5px); box-shadow: var(--sombra-card-hover); }
.curso-card .banner { width: 100%; height: 180px; object-fit: cover; }
.curso-card .card-content { padding: 24px; flex-grow: 1; display: flex; flex-direction: column; }
.curso-card h3 { margin: 0 0 8px 0; font-size: 1.25rem; color: var(--cor-primaria); }
.curso-card p { font-size: 0.9rem; margin: 0 0 1rem 0; flex-grow: 1; color: var(--cor-texto-secundario); }
.curso-card .card-actions { margin-top: auto; padding-top: 1rem; display: flex; justify-content: flex-end; align-items: center; }

.curso-header .banner { width: 100%; height: 350px; object-fit: cover; border-radius: 12px; }
.curso-header h1 { margin-top: 20px; }
.curso-content-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; margin-top: 30px; }
.curso-main-content { background-color: var(--cor-superficie); padding: 30px; border-radius: 12px; }
.curso-sidebar { align-self: start; }
.sidebar-widget { background-color: var(--cor-superficie); padding: 30px; border-radius: 12px; margin-bottom: 20px; }
.sidebar-widget h2 { font-size: 1.25rem; margin-top: 0; padding-bottom: 10px; border-bottom: 1px solid var(--cor-borda); color: var(--cor-primaria); }
.sidebar-widget ul { list-style: none; padding: 0; }
.sidebar-widget ul li { margin-bottom: 10px; }
.sidebar-widget .btn { width: 100%; margin-bottom: 10px; }
.sidebar-widget .palestrante-item { display: flex; align-items: center; gap: 15px; margin-bottom: 15px; }
.sidebar-widget .palestrante-foto { width: 50px; height: 50px; border-radius: 50%; object-fit: cover; }
.sidebar-widget .palestrante-nome { font-weight: 500; }
.sidebar-widget .modulo-item { margin-bottom: 1rem; }
.sidebar-widget .modulo-titulo { font-weight: 700; margin: 0 0 0.5rem 0; color: var(--cor-texto-principal); }
.sidebar-widget .aulas-list-nested { list-style-type: disc; padding-left: 20px; margin: 0; }
.sidebar-widget .aulas-list-nested li { font-size: 0.9rem; color: var(--cor-texto-secundario); margin-bottom: 5px; }

.aula-container { display: flex; height: calc(100vh - 75px); }
.aula-sidebar { width: 320px; background-color: var(--cor-superficie); height: 100%; overflow-y: auto; box-shadow: 2px 0 5px rgba(0,0,0,0.05); flex-shrink: 0; }
.aula-sidebar-header { padding: 20px; background-color: #f8f9fa; border-bottom: 1px solid var(--cor-borda); }
.aulas-list-container { padding: 10px 0; }
.modulo-group { margin-bottom: 15px; }
.modulo-title-sidebar { padding: 10px 20px; font-weight: 700; font-size: 1rem; color: var(--cor-texto-principal); background-color: #e9ecef; margin: 0; }
.aulas-list { list-style: none; padding: 0; margin: 0; }
.aulas-list li a { display: block; padding: 12px 20px 12px 35px; color: var(--cor-texto-secundario); text-decoration: none; border-bottom: 1px solid #eee; }
.aulas-list li a:hover { background-color: #f0f2f5; }
.aulas-list li.active a { background-color: var(--cor-primaria); color: #fff; }
.aulas-list li.completed a::after { content: ' ✔'; color: var(--cor-sucesso); font-weight: bold; }
.aula-main-content { flex-grow: 1; padding: 40px; height: 100%; overflow-y: auto; box-sizing: border-box; }
.video-player { width: 100%; max-width: 900px; margin: 0 auto 30px auto; background-color: #000; border-radius: 12px; overflow: hidden; }
.video-player video { width: 100%; display: block; }
.aula-details { max-width: 900px; margin: 0 auto; }
.aula-details h1 { margin-top: 0; }
.materiais-section { margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--cor-borda); max-width: 900px; margin: 30px auto 0 auto;}
.materiais-section h3 { margin-top: 0; }
.aula-nav { display: flex; justify-content: space-between; margin-top: 30px; max-width: 900px; margin: 30px auto 0 auto; }

.progress-section { margin-bottom: 1rem; }
.progress-bar-container { width: 100%; background-color: #e9ecef; border-radius: 5px; }
.progress-bar { height: 10px; background-color: var(--cor-sucesso); border-radius: 5px; }
.progress-text { font-size: 0.75rem; color: var(--cor-texto-secundario); margin-top: 4px; display: block; }

.certificado-body { display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 20px; box-sizing: border-box; }
.certificado-container { width: 800px; height: 565px; background-color: var(--cor-superficie); border: 10px solid var(--cor-primaria); padding: 50px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); position: relative; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; }
.certificado-container .titulo { font-size: 3rem; color: var(--cor-primaria); margin: 0; }
.certificado-container .subtitulo { font-size: 1.5rem; margin-top: 2rem; }
.certificado-container .nome-participante { font-size: 2.5rem; margin: 2.5rem 0; border-bottom: 2px solid var(--cor-borda); padding-bottom: 10px; }
.certificado-container .texto-conclusao { font-size: 1.1rem; max-width: 90%; }
.certificado-container .data { margin-top: 2.5rem; font-size: 1rem; }
.print-button { position: absolute; top: 20px; right: 20px; }

@media (max-width: 992px) { .curso-content-grid { grid-template-columns: 1fr; } }
@media (max-width: 768px) { .aula-container { flex-direction: column; } .aula-sidebar { width: 100%; height: auto; max-height: 40vh; } .aula-main-content { height: auto; } }
@media print { body { background-color: #fff; padding: 0; } .print-button, .header { display: none; } .certificado-container { box-shadow: none; border: 10px solid #000; margin: 0 auto; } }

/* NOVAS CLASSES ADICIONADAS */
.sidebar-widget .modulo-descricao {
    font-size: 0.85rem;
    color: var(--cor-texto-secundario);
    margin: -0.5rem 0 1rem 0;
    padding-left: 5px;
}

.modulo-description-sidebar {
    font-size: 0.85rem;
    color: var(--cor-texto-secundario);
    padding: 10px 20px;
    margin: 0;
    background-color: #f8f9fa;
    border-bottom: 1px solid var(--cor-borda);
}

/* =================================================================== */
/* === NOVOS ESTILOS PARA A PÁGINA DE CURSO (ADICIONAR AO FINAL) === */
/* =================================================================== */

/* --- Novo Cabeçalho do Curso --- */
.curso-header-novo {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
    background-color: var(--cor-superficie);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--sombra-card);
}

.curso-header-content h1 {
    font-size: 2.5rem;
    color: var(--cor-primaria);
    margin-top: 0;
    margin-bottom: 1rem;
}

.curso-header-content p {
    font-size: 1.1rem;
    color: var(--cor-texto-secundario);
    margin-bottom: 2rem;
}

.curso-header-content .btn-acessar {
    padding: 15px 30px;
    font-size: 1.1rem;
}

.curso-header-banner img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

/* --- Seção de Título --- */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    color: var(--cor-texto-principal);
    margin-top: 60px;
    margin-bottom: 30px;
}

/* --- Seção de Palestrantes --- */
.palestrantes-section {
    margin-bottom: 40px;
}

.palestrantes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.palestrante-card {
    background-color: var(--cor-superficie);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    box-shadow: var(--sombra-card);
    transition: all 0.3s;
}
.palestrante-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--sombra-card-hover);
}

.palestrante-card .palestrante-foto {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.palestrante-card .palestrante-info h3 {
    margin: 0 0 8px 0;
    color: var(--cor-primaria);
}

.palestrante-card .palestrante-info p {
    font-size: 0.9rem;
    color: var(--cor-texto-secundario);
    margin: 0 0 16px 0;
}

/* --- Seção de Conteúdo (Abas) --- */
.tabs-container {
    background-color: var(--cor-superficie);
    border-radius: 12px;
    box-shadow: var(--sombra-card);
    padding: 30px;
}

.tabs-nav {
    display: flex;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--cor-borda);
    margin-bottom: 24px;
}

.tab-button {
    padding: 12px 20px;
    cursor: pointer;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    font-size: 1rem;
    font-weight: 500;
    color: var(--cor-texto-secundario);
    margin-bottom: -1px; /* Alinha com a borda inferior */
    transition: all 0.2s;
}

.tab-button:hover {
    color: var(--cor-primaria);
}

.tab-button.active {
    color: var(--cor-primaria);
    border-bottom-color: var(--cor-primaria);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.tab-pane .modulo-descricao {
    font-size: 1rem;
    color: var(--cor-texto-secundario);
    margin-bottom: 24px;
}

.aulas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.aula-card {
    background-color: var(--cor-fundo);
    border-radius: 8px;
    padding: 16px;
    border: 1px solid var(--cor-borda);
}

.aula-card-palestrante {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.aula-card-palestrante img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.aula-card-palestrante span {
    font-size: 0.85rem;
    color: var(--cor-texto-secundario);
    font-weight: 500;
}

.aula-card-titulo {
    font-size: 1.1rem;
    margin: 0;
    color: var(--cor-texto-principal);
}

/* --- Responsividade para o novo layout --- */
@media (max-width: 992px) {
    .curso-header-novo {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .curso-header-banner {
        order: -1; /* Joga a imagem para cima em telas menores */
    }
}

@media (max-width: 480px) {
    .palestrante-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .tabs-nav {
        flex-direction: column;
        align-items: stretch;
    }
    .tab-button {
        border-bottom: 1px solid var(--cor-borda);
        text-align: left;
    }
    .tab-button.active {
        border-bottom-color: var(--cor-borda);
    }
}

/* =================================================================== */
/* === NOVOS ESTILOS PARA A PÁGINA DE AULA (ADICIONAR AO FINAL) ==== */
/* =================================================================== */

.main-container-aula {
    max-width: 1000px;
    margin: 30px auto;
    padding: 0 20px;
}

.aula-breadcrumb {
    font-size: 0.9rem;
    color: var(--cor-texto-secundario);
    margin-bottom: 1rem;
}

.aula-breadcrumb a {
    color: var(--cor-texto-secundario);
    text-decoration: none;
}
.aula-breadcrumb a:hover {
    text-decoration: underline;
}

.aula-title {
    font-size: 2.25rem;
    color: var(--cor-texto-principal);
    margin-bottom: 1.5rem;
}

.video-player-container {
    width: 100%;
    background-color: #000;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    margin-bottom: 2rem;
}
.video-player-container video {
    width: 100%;
    display: block;
}

.aula-meta-section {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    padding: 20px;
    background-color: var(--cor-superficie);
    border-radius: 12px;
    margin-bottom: 2rem;
}

.aula-palestrante-card {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    flex-grow: 1;
}
.aula-palestrante-card img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}
.aula-palestrante-card .info strong {
    font-size: 1.2rem;
    color: var(--cor-primaria);
    display: block;
    margin-bottom: 4px;
}
.aula-palestrante-card .info p {
    font-size: 0.9rem;
    color: var(--cor-texto-secundario);
    margin: 0;
    line-height: 1.5;
}

.aula-nav-buttons {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
    align-self: center;
}

.aula-conteudo-tabs {
    background-color: var(--cor-superficie);
    border-radius: 12px;
    box-shadow: var(--sombra-card);
    padding: 30px;
}

.lista-materiais {
    list-style: none;
    padding: 0;
}
.lista-materiais li a {
    display: block;
    padding: 12px;
    background-color: var(--cor-fundo);
    border: 1px solid var(--cor-borda);
    border-radius: 8px;
    text-decoration: none;
    color: var(--cor-primaria);
    font-weight: 500;
    margin-bottom: 10px;
    transition: all 0.2s;
}
.lista-materiais li a:hover {
    background-color: #e9ecef;
    border-color: #adb5bd;
}

/* --- Responsividade para a nova página de aula --- */
@media (max-width: 768px) {
    .aula-meta-section {
        flex-direction: column;
        align-items: stretch;
    }
    .aula-nav-buttons {
        margin-top: 20px;
        justify-content: space-between;
    }
}

/* =================================================================== */
/* === NOVOS ESTILOS PARA O PAINEL DE PROGRESSO (ADICIONAR AO FINAL) === */
/* =================================================================== */

.aula-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.progresso-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}
.progresso-overlay.open {
    opacity: 1;
    visibility: visible;
}

.curso-progresso-sidebar {
    position: fixed;
    top: 0;
    right: -400px; /* Começa fora da tela */
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background-color: var(--cor-superficie);
    z-index: 2000;
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    transition: right 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex;
    flex-direction: column;
}
.curso-progresso-sidebar.open {
    right: 0;
}

.curso-progresso-sidebar .sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    border-bottom: 1px solid var(--cor-borda);
    flex-shrink: 0;
}
.curso-progresso-sidebar .sidebar-header h3 {
    margin: 0;
    color: var(--cor-primaria);
}
.curso-progresso-sidebar .close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--cor-texto-secundario);
}

.curso-progresso-sidebar .sidebar-content {
    padding: 16px;
    overflow-y: auto;
    flex-grow: 1;
}

.modulo-progresso-toggle {
    width: 100%;
    padding: 12px;
    background-color: #f8f9fa;
    border: 1px solid var(--cor-borda);
    border-radius: 8px;
    text-align: left;
    font-weight: 700;
    cursor: pointer;
    margin-bottom: 8px;
    position: relative;
}
.modulo-progresso-toggle::after {
    content: '+';
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
}
.modulo-progresso-toggle.active::after {
    content: '−';
}

.aulas-progresso-lista ul {
    list-style: none;
    padding: 0 0 0 15px;
    margin: 0 0 10px 0;
    border-left: 2px solid #e9ecef;
}
.aulas-progresso-lista li a {
    display: block;
    padding: 10px;
    text-decoration: none;
    color: var(--cor-texto-secundario);
    border-radius: 6px;
    position: relative;
    padding-left: 25px;
}
.aulas-progresso-lista li a:hover {
    background-color: #f0f2f5;
}

.aulas-progresso-lista li a::before {
    content: '';
    position: absolute;
    left: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border: 2px solid #adb5bd;
    border-radius: 50%;
}
.aulas-progresso-lista li.aula-concluida a {
    color: #495057;
}
.aulas-progresso-lista li.aula-concluida a::before {
    background-color: var(--cor-sucesso);
    border-color: var(--cor-sucesso);
    content: '✔';
    color: white;
    font-size: 0.6rem;
    text-align: center;
    line-height: 10px;
    width: 12px;
    height: 12px;
}
.aulas-progresso-lista li.aula-atual a {
    color: var(--cor-primaria);
    font-weight: 700;
}
.aulas-progresso-lista li.aula-atual a::before {
    background-color: var(--cor-primaria);
    border-color: var(--cor-primaria);
}