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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
}

.container-principal {
    max-width: 100vw;
    margin: 0 auto;
    background: white;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.cabecalho {
    background: #2c3e50;
    color: white;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.cabecalho h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.subtitulo {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
}

.selecao-assuntos {
    padding: 3rem 2rem;
    background: #f8f9fa;
    flex: 1;
}

.grid-assuntos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.card-assunto {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    text-align: center;
}

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

.icone-assunto {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.card-assunto h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
    font-weight: 600;
}

.card-assunto p {
    color: #6c757d;
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.opcoes-assunto {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.botao-opcao {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.botao-opcao.atual {
    background: #e74c3c;
    color: white;
}

.botao-opcao.atual:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

.botao-opcao.moderno {
    background: #27ae60;
    color: white;
}

.botao-opcao.moderno:hover {
    background: #219a52;
    transform: translateY(-2px);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    visibility: hidden;
    opacity: 0;
    transition: all 0.3s ease;
}

.modal-overlay.ativo {
    visibility: visible;
    opacity: 1;
}

.modal-conteudo {
    background: white;
    max-width: 90vw;
    max-height: 90vh;
    width: 1200px;
    height: 800px;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.ativo .modal-conteudo {
    transform: scale(1);
}

.modal-cabecalho {
    background: #2c3e50;
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-cabecalho h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.botao-fechar {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.botao-fechar:hover {
    background: rgba(255,255,255,0.1);
}

.modal-corpo {
    flex: 1;
    overflow-y: auto;
    background: #f8f9fa;
}

.wikipedia-atual {
    background: white;
    height: 100%;
    font-family: 'Times New Roman', serif;
}

.barra-superior-atual {
    background: #f6f6f6;
    border-bottom: 1px solid #a2a9b1;
    padding: 0.5rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-atual {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: bold;
    color: #000;
}

.logo-atual img {
    width: 24px;
    height: 24px;
}

.navegacao-atual {
    display: flex;
    gap: 1rem;
}

.link-atual {
    color: #0645ad;
    text-decoration: none;
    font-size: 0.9rem;
}

.link-atual:hover {
    text-decoration: underline;
}

.corpo-atual {
    display: flex;
    min-height: 700px;
}

.sidebar-atual {
    width: 200px;
    background: #f6f6f6;
    border-right: 1px solid #a2a9b1;
    padding: 1rem;
}

.caixa-busca-atual {
    display: flex;
    margin-bottom: 1rem;
}

.input-busca-atual {
    flex: 1;
    padding: 0.3rem;
    border: 1px solid #a2a9b1;
    font-size: 0.9rem;
}

.botao-busca-atual {
    background: #f8f9fa;
    border: 1px solid #a2a9b1;
    border-left: none;
    padding: 0.3rem 0.8rem;
    cursor: pointer;
    font-size: 0.9rem;
}

.menu-lateral-atual h3 {
    font-size: 0.9rem;
    margin: 1rem 0 0.5rem 0;
    color: #222;
}

.menu-lateral-atual ul {
    list-style: none;
    margin-bottom: 1rem;
}

.menu-lateral-atual li {
    margin-bottom: 0.2rem;
}

.menu-lateral-atual a {
    color: #0645ad;
    text-decoration: none;
    font-size: 0.85rem;
}

.menu-lateral-atual a:hover {
    text-decoration: underline;
}

.conteudo-atual {
    flex: 1;
    padding: 1rem;
}

.titulo-artigo-atual h1 {
    font-size: 2rem;
    font-weight: normal;
    margin-bottom: 0.5rem;
    color: #000;
    border-bottom: 3px solid #a2a9b1;
    padding-bottom: 0.2rem;
}

.tabs-atual {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tab-ativa, .tab-inativa {
    padding: 0.5rem 1rem;
    text-decoration: none;
    border: 1px solid #a2a9b1;
    background: #f8f9fa;
}

.tab-ativa {
    background: white;
    color: #000;
    border-bottom: 1px solid white;
}

.tab-inativa {
    color: #0645ad;
}

.artigo-atual {
    background: white;
    padding: 1rem;
    position: relative;
}

.infobox-atual {
    float: right;
    width: 300px;
    background: #f8f9fa;
    border: 1px solid #a2a9b1;
    margin: 0 0 1rem 1rem;
    padding: 1rem;
}

.titulo-infobox {
    font-weight: bold;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    text-align: center;
}

.conteudo-infobox p {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.artigo-atual p {
    margin-bottom: 1rem;
    text-align: justify;
    line-height: 1.6;
}

.artigo-atual h2 {
    font-size: 1.3rem;
    margin: 1.5rem 0 0.5rem 0;
    border-bottom: 1px solid #a2a9b1;
    padding-bottom: 0.2rem;
}

.artigo-atual ul {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.artigo-atual li {
    margin-bottom: 0.3rem;
}

.wikipedia-moderno {
    background: white;
    height: 100%;
    font-family: 'Inter', sans-serif;
}

.barra-superior-moderno {
    background: white;
    border-bottom: 1px solid #e1e5e9;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.logo-moderno {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 600;
    color: #1a1a1a;
    font-size: 1.2rem;
}

.icone-logo-moderno {
    width: 40px;
    height: 40px;
    background: #495057;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.busca-moderno {
    flex: 1;
    max-width: 600px;
    margin: 0 2rem;
}

.input-container-moderno {
    position: relative;
    width: 100%;
}

.input-container-moderno i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #8e9aaf;
    font-size: 1rem;
}

.input-busca-moderno {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 3rem;
    border: 2px solid #e1e5e9;
    border-radius: 25px;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

.input-busca-moderno:focus {
    border-color: #495057;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.acoes-moderno {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.botao-moderno {
    background: #495057;
    color: white;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.botao-moderno:hover {
    background: #495057;
    transform: translateY(-1px);
}

.botao-moderno.secundario {
    background: transparent;
    color: #495057;
    border: 2px solid #495057;
}

.botao-moderno.secundario:hover {
    background: #495057;
    color: white;
}

.navegacao-moderno {
    background: #f8f9fa;
    padding: 0 2rem;
    border-bottom: 1px solid #e1e5e9;
}

.nav-links-moderno {
    display: flex;
    gap: 2rem;
}

.nav-link, .nav-link-ativo {
    padding: 1rem 0;
    text-decoration: none;
    color: #6c757d;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.nav-link-ativo {
    color: #495057;
    border-bottom-color: #495057;
}

.nav-link:hover {
    color: #495057;
}

.corpo-moderno {
    padding: 2rem;
    background: #f8f9fa;
}

.container-conteudo-moderno {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.07);
    overflow: hidden;
}

.breadcrumb-moderno {
    background: #f8f9fa;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: #6c757d;
    border-bottom: 1px solid #e1e5e9;
}

.breadcrumb-moderno i {
    font-size: 0.7rem;
}

.artigo-moderno {
    padding: 2rem;
}

.cabecalho-artigo-moderno {
    margin-bottom: 2rem;
}

.cabecalho-artigo-moderno h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.meta-artigo-moderno {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.tag-categoria {
    background: #e3f2fd;
    color: #1976d2;
    padding: 0.3rem 0.8rem;
    border-radius: 16px;
    font-size: 0.8rem;
    font-weight: 500;
}

.status-artigo {
    background: #e8f5e8;
    color: #2e7d32;
    padding: 0.3rem 0.8rem;
    border-radius: 16px;
    font-size: 0.8rem;
    font-weight: 500;
}

.conteudo-artigo-moderno {
    margin-top: 2rem;
}

.resumo-moderno {
    margin-bottom: 2rem;
}

.card-resumo {
    background: #495057;
    color: white;
    padding: 2rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.icone-resumo {
    font-size: 2.5rem;
    opacity: 0.9;
}

.texto-resumo h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.texto-resumo p {
    opacity: 0.9;
    line-height: 1.5;
}

.secao-moderno h2 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 1rem;
}

.secao-moderno p {
    color: #495057;
    line-height: 1.7;
    margin-bottom: 1rem;
}

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

.card-conteudo {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid #495057;
}

.card-conteudo h3 {
    color: #1a1a1a;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.card-conteudo p {
    color: #6c757d;
    line-height: 1.6;
}

.rodape {
    background: #2c3e50;
    color: white;
    padding: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .grid-assuntos {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .card-assunto {
        padding: 1.5rem;
    }
    
    .opcoes-assunto {
        flex-direction: column;
    }
    
    .cabecalho h1 {
        font-size: 2rem;
    }
    
    .modal-conteudo {
        max-width: 95vw;
        max-height: 95vh;
    }
    
    .corpo-atual {
        flex-direction: column;
    }
    
    .sidebar-atual {
        width: 100%;
        order: -1;
    }
    
    .infobox-atual {
        float: none;
        width: 100%;
        margin: 0 0 1rem 0;
    }
    
    .barra-superior-moderno {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .busca-moderno {
        margin: 0;
        max-width: 100%;
    }
    
    .nav-links-moderno {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .corpo-moderno {
        padding: 1rem;
    }
    
    .artigo-moderno {
        padding: 1rem;
    }
    
    .cabecalho-artigo-moderno h1 {
        font-size: 2rem;
    }
    
    .meta-artigo-moderno {
        flex-direction: column;
        align-items: flex-start;
    }
}