/* Reset Básico e Estilos Globais */
    :root {
        /* Paleta de Cores Principal */
        --cor-primaria: #2c3e50; 
        --cor-secundaria: #3498db; 
        
        /* Cores de Texto */
        --cor-texto: #333; 
        --cor-texto-claro: #ecf0f1; 
        
        /* Cores de Fundo */
        --cor-fundo: #f4f6f8; 
        --cor-fundo-secao: #ffffff; 
        
        /* Outras Variáveis de Estilo */
        --sombra-caixa: 0 4px 12px rgba(0, 0, 0, 0.1); /* Sombra um pouco mais suave */
        --borda-radius: 8px; 
        --borda-radius-botao-hero: 25px; 
        
        --cor-fundo-especialidade-item: #f9f9f9; /* Fundo mais suave para tags de especialidade */
        
        --cor-tag-projeto: #e9ecef; 
        --cor-texto-tag-projeto: #495057; 
    }

    /* Reset de Estilos Padrão do Navegador */
    * {
        margin: 0; 
        padding: 0; 
        box-sizing: border-box; 
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
        /* scroll-behavior: smooth; REMOVIDO - JavaScript irá controlar */
    }

    /* Estilos Globais para o Body */
    body {
        line-height: 1.7; /* Aumentado para melhor legibilidade */
        color: var(--cor-texto); 
        background-color: var(--cor-fundo); 
        font-size: 16px; 
    }

    /* Estilos do Cabeçalho (Header) */
    header {
        background: var(--cor-fundo-secao); 
        color: var(--cor-primaria); 
        padding: 1rem 0; 
        position: sticky; 
        top: 0; 
        width: 100%; 
        z-index: 1000; 
        box-shadow: 0 2px 4px rgba(0,0,0,0.05); /* Sombra mais sutil no header */
    }

    header .container {
        max-width: 1100px; 
        margin: auto; 
        display: flex; 
        justify-content: space-between; 
        align-items: center; 
        padding: 0 20px; 
    }

    header .logo {
        font-size: 1.6rem; /* Ligeiramente maior */
        font-weight: 700; /* Mais destaque */
        text-decoration: none; 
        color: var(--cor-primaria); 
    }

    header nav ul {
        list-style: none; 
        display: flex; 
    }

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

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

    header nav ul li a::after {
        content: ''; 
        position: absolute; 
        width: 0; 
        height: 2px; 
        bottom: -2px; /* Ligeiramente abaixo para não tocar no texto */
        left: 0; 
        background-color: var(--cor-secundaria); 
        transition: width 0.3s ease; 
    }

    header nav ul li a:hover,
    header nav ul li a.active { 
        color: var(--cor-secundaria); 
    }

    header nav ul li a:hover::after,
    header nav ul li a.active::after {
        width: 100%; 
    }

    .menu-toggle {
        display: none; 
        flex-direction: column; 
        justify-content: space-around; 
        width: 30px; 
        height: 25px; 
        background: transparent; 
        border: none; 
        cursor: pointer; 
        padding: 0; 
        z-index: 10; 
    }

    .menu-toggle .bar {
        width: 100%; 
        height: 3px; 
        background-color: var(--cor-primaria); 
        border-radius: 10px; 
        transition: all 0.3s ease-in-out; 
    }

    .container {
        max-width: 1100px; 
        margin: auto; 
        padding: 0 20px 20px 20px; 
        overflow: hidden; 
    }

    .section {
        padding: 60px 20px; 
        background-color: var(--cor-fundo-secao); 
        border-radius: var(--borda-radius); 
        box-shadow: var(--sombra-caixa); 
    }
    .section:not(:last-child) {
        /* margin-bottom: 1px; */
    }

    .section-title {
        font-size: 2.5rem; 
        margin-bottom: 40px; 
        text-align: center; 
        color: var(--cor-primaria); 
        position: relative; 
        padding-bottom: 15px; 
        font-weight: 700; 
    }

    .section-title::after { 
        content: '';
        position: absolute;
        width: 80px;
        height: 4px;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%); 
        background-color: var(--cor-secundaria);
        border-radius: 2px;
    }

    #inicio {
        min-height: 90vh; 
        display: flex;
        flex-direction: column; 
        justify-content: center; 
        align-items: center; 
        text-align: center; 
        background-color: var(--cor-fundo-secao); 
        color: var(--cor-primaria); 
        padding: 40px 20px; 
        position: relative; 
        border-radius: 0; 
        box-shadow: none; 
    }

    #inicio .hero-content {
        max-width: 800px; 
    }

    #inicio h1 { 
        font-size: 3.5rem; 
        font-weight: 700; 
        margin-bottom: 20px;
        line-height: 1.2; 
    }

    #inicio .subtitle { 
        font-size: 1.25rem; 
        margin-bottom: 40px;
        font-weight: 400; 
        color: #555; 
        max-width: 600px; 
        margin-left: auto; 
        margin-right: auto;
    }

    .hero-buttons {
        display: flex;
        justify-content: center; 
        gap: 20px; 
        flex-wrap: wrap; 
    }

    .hero-buttons .btn {
        padding: 12px 30px; 
        text-decoration: none; 
        border-radius: var(--borda-radius-botao-hero); 
        font-weight: bold;
        font-size: 1rem;
        transition: transform 0.3s ease, background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease; 
        box-shadow: 0 2px 4px rgba(0,0,0,0.1); 
        border: 2px solid transparent; 
    }

    .hero-buttons .btn-primary {
        background: var(--cor-primaria);
        color: var(--cor-texto-claro);
        border-color: var(--cor-primaria);
    }

    .hero-buttons .btn-primary:hover {
        background: var(--cor-secundaria);
        border-color: var(--cor-secundaria);
        transform: translateY(-3px); 
    }

    .hero-buttons .btn-secondary {
        background: var(--cor-fundo-secao);
        color: var(--cor-primaria);
        border: 2px solid var(--cor-primaria);
    }

    .hero-buttons .btn-secondary:hover {
        background: var(--cor-secundaria); 
        border-color: var(--cor-secundaria); 
        color: var(--cor-texto-claro); 
        transform: translateY(-3px);
    }
            
    .scroll-down-arrow {
        position: absolute; 
        bottom: 30px; 
        left: 50%; 
        transform: translateX(-50%); 
        width: 24px;
        height: 24px;
        cursor: pointer; 
    }

    .scroll-down-arrow svg {
        width: 100%;
        height: 100%;
        fill: var(--cor-primaria); 
        animation: bounce 2s infinite; 
    }

    @keyframes bounce {
        0%, 20%, 50%, 80%, 100% {
            transform: translateY(0);
        }
        40% {
            transform: translateY(-10px);
        }
        60% {
            transform: translateY(-5px);
        }
    }

    /* Estilos da Secção Sobre Mim */
    .about-content-grid {
        display: grid;
        grid-template-columns: 1.75fr 1fr; 
        gap: 40px; 
        align-items: start; 
    }

    .about-column-title { 
        font-size: 2.4rem; 
        font-weight: 700;  
        color: var(--cor-primaria);
        text-align: left;
        padding-bottom: 0; 
        margin-bottom: 24px; 
    }
    
    .about-text-content p { 
        font-size: 1rem; 
        line-height: 1.7;
        margin-bottom: 15px;
        color: #555; 
    }
    .about-text-content p:first-child {
      margin-top: 0; 
    }
    
    .specialties-list {
        list-style: none; 
        padding: 0; 
        display: grid;
        grid-template-columns: repeat(2, 1fr); 
        gap: 15px; 
    }

    .specialties-list li {
        background-color: var(--cor-fundo-especialidade-item); 
        padding: 12px 15px;
        border-radius: 6px; 
        text-align: center; 
        font-size: 0.95rem;
        color: var(--cor-texto);
        box-shadow: 0 1px 3px rgba(0,0,0,0.08); 
        transition: transform 0.2s ease, box-shadow 0.2s ease; 
    }
    .specialties-list li:hover {
        transform: translateY(-2px); 
        box-shadow: 0 3px 6px rgba(0,0,0,0.1); 
    }

    /* Estilos da Secção de Projetos */
    #projetos .section-title { 
        margin-bottom: 50px; 
    }

    .project-category {
        margin-bottom: 40px; 
    }
    .project-category:last-child { 
        margin-bottom: 0; 
    }

    .project-category-title {
        font-size: 1.8rem;
        color: var(--cor-secundaria); 
        text-align: center;
        margin-bottom: 30px;
        font-weight: 600;
    }

    .projects-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); 
        gap: 25px; 
        align-items: stretch; 
    }

    .project-card {
        background: var(--cor-fundo-secao); 
        border-radius: var(--borda-radius);
        box-shadow: var(--sombra-caixa);
        overflow: hidden; 
        display: flex;
        flex-direction: column; 
        transition: transform 0.3s ease, box-shadow 0.3s ease; 
    }
    .project-card-link-wrapper {
        text-decoration: none; 
        color: inherit; 
        display: flex; 
        flex-direction: column;
        height: 100%; 
    }


    .project-card:hover {
        transform: translateY(-5px); 
        box-shadow: 0 8px 15px rgba(0,0,0,0.15); 
    }

    .project-cover-image {
        width: 100%;
        height: 200px; 
        background-color: #ddd; 
        overflow: hidden; 
    }
    .project-cover-image img {
        width: 100%;
        height: 100%;
        object-fit: cover; 
        transition: transform 0.4s ease; 
    }
    .project-card:hover .project-cover-image img {
        transform: scale(1.05); 
    }

    .project-info {
        padding: 15px; 
        flex-grow: 1; 
        display: flex;
        flex-direction: column; 
    }
            
    .project-type-tag {
        display: inline-block; 
        font-size: 0.75rem;
        font-weight: 600;
        color: var(--cor-secundaria); 
        margin-bottom: 8px;
        text-transform: uppercase; 
        letter-spacing: 0.5px; 
    }

    .project-info h3 { 
        font-size: 1.2rem; 
        color: var(--cor-primaria);
        margin-bottom: 8px; 
        line-height: 1.3;
    }

    .project-info p { 
        font-size: 0.85rem; 
        color: #555;
        margin-bottom: 12px; 
        flex-grow: 1; 
        line-height: 1.5;
    }

    .project-tags {
        display: flex;
        flex-wrap: wrap; 
        gap: 6px; 
        margin-top: auto; 
    }

    .project-tags span {
        background-color: var(--cor-tag-projeto);
        color: var(--cor-texto-tag-projeto);
        padding: 4px 8px; 
        border-radius: 15px; 
        font-size: 0.7rem; 
        font-weight: 500;
    }
            

    /* Estilos da Secção de Habilidades */
    .skills-list {
        list-style: none;
        display: flex;
        flex-wrap: wrap; 
        justify-content: center; 
        gap: 15px; 
    }

    .skills-list li {
        background: var(--cor-secundaria); 
        color: var(--cor-texto-claro); 
        padding: 10px 20px;
        border-radius: 20px; 
        font-size: 1rem;
        font-weight: 500;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1); 
    }

    /* Estilos da Secção de Contato */
    #contato-form { 
        max-width: 700px; 
        margin: 0 auto; 
        display: grid; 
        gap: 20px; 
    }

    .form-group {
        display: flex;
        flex-direction: column; 
    }

    .form-group label {
        margin-bottom: 5px; 
        font-weight: bold;
        color: var(--cor-primaria);
    }

    .form-group input,
    .form-group textarea {
        padding: 12px;
        border: 1px solid #ccc; 
        border-radius: var(--borda-radius);
        font-size: 1rem;
        transition: border-color 0.3s ease; 
    }

    .form-group input:focus,
    .form-group textarea:focus {
        outline: none; 
        border-color: var(--cor-secundaria); 
        box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2); 
    }

    #contato-form button {
        padding: 12px 20px;
        background: var(--cor-primaria);
        color: var(--cor-texto-claro);
        border: none;
        border-radius: var(--borda-radius);
        cursor: pointer;
        font-size: 1.1rem;
        font-weight: bold;
        transition: background-color 0.3s ease;
        justify-self: center; 
        width: fit-content; 
    }

    #contato-form button:hover {
        background: var(--cor-secundaria); 
    }

    .social-links {
        text-align: center; 
        margin-top: 40px; 
    }
    .social-links p { 
        margin-bottom: 15px;
        font-size: 1.1rem;
    }

    .social-links a { 
        margin: 0 15px; 
        text-decoration: none;
        color: var(--cor-primaria);
        font-size: 1.8rem; 
        transition: color 0.3s ease;
    }
    .social-links a:hover {
        color: var(--cor-secundaria); 
    }


    /* Estilos do Rodapé */
    footer {
        text-align: center;
        padding: 20px;
        background: var(--cor-primaria); 
        color: var(--cor-texto-claro); 
    }

    /* Animações Sutis de Fade In ao Rolar */
    .fade-in {
        opacity: 0; 
        transform: translateY(20px); 
        transition: opacity 0.6s ease-out, transform 0.6s ease-out; 
    }

    .fade-in.visible { 
        opacity: 1; 
        transform: translateY(0); 
    }

    /* --- ESTILOS ESPECÍFICOS PARA PÁGINA DE DETALHE DO PROJETO --- */
    .project-detail-header {
        background-color: var(--cor-fundo-secao);
        padding: 60px 20px 30px; 
        text-align: center;
        border-bottom: 1px solid #eee; 
    }

    .project-detail-header h1 {
        font-size: 2.6rem; 
        color: var(--cor-primaria);
        margin-bottom: 15px; 
    }

    .project-detail-header .project-subtitle {
        font-size: 1.15rem; 
        color: #555;
        max-width: 700px;
        margin: 0 auto 25px; 
    }
    
    .project-detail-header .project-type-tag-detail {
        display: inline-block;
        background-color: var(--cor-texto-tag-projeto);

        color: var(--cor-texto-claro);
        padding: 6px 18px; 
        border-radius: var(--borda-radius-botao-hero);
        font-size: 0.85rem; 
        font-weight: 500;
        margin-bottom: 30px;
    }

    .project-content-container { 
        padding-top: 40px; 
        padding-bottom: 40px; 
    }

    .project-main-image img {
        width: 60%;
        max-width: 850px; 
        height: auto;
        border-radius: var(--borda-radius);
        box-shadow: var(--sombra-caixa);
        margin: 0 auto 50px; 
        display: block;
    }

    .project-section { 
        margin-bottom: 50px; 
    }
    .project-section:last-of-type { 
        margin-bottom: 30px;
    }


    .project-section h2 { 
        font-size: 1.9rem; 
        color: var(--cor-primaria);
        margin-bottom: 20px; 
        border-bottom: 2px solid var(--cor-secundaria);
        padding-bottom: 8px; 
        display: inline-block; 
    }

    .project-section p,
    .project-section ul {
        font-size: 1.05rem; 
        line-height: 1.8; 
        color: #444;
    }
    
    .project-section ul.tech-list { 
        list-style: none;
        padding-left: 0;
    }
    .project-section ul.tech-list li {
        margin-bottom: 10px;
        background-color: var(--cor-fundo);
        padding: 8px 12px;
        border-radius: var(--borda-radius);
        font-size: 0.95rem;
    }
    .tech-icon {
        margin-right: 8px;
        color: var(--cor-secundaria);
    }


    /* Estilos do Slideshow */
    .slideshow-container {
        max-width: 800px; 
        position: relative;
        margin: 30px auto; 
        box-shadow: var(--sombra-caixa);
        border-radius: var(--borda-radius);
        overflow: hidden; 
    }

    .slide {
        display: none; 
    }

    .slide img {
        width: 100%;
        height: auto;
        vertical-align: middle; 
        border-radius: var(--borda-radius); 
        cursor: pointer; 
    }

    .prev, .next {
        cursor: pointer;
        position: absolute;
        top: 50%;
        width: auto;
        padding: 16px;
        margin-top: -22px; 
        color: white;
        font-weight: bold;
        font-size: 20px;
        transition: 0.6s ease;
        border-radius: 0 3px 3px 0;
        user-select: none; 
        background-color: rgba(0, 0, 0, 0.4); 
        z-index: 5; 
    }

    .next {
        right: 0;
        border-radius: 3px 0 0 3px;
    }

    .prev:hover, .next:hover {
        background-color: rgba(0, 0, 0, 0.8); 
    }

    .fade {
        animation-name: fade;
        animation-duration: 1.0s; 
    }

    @keyframes fade {
        from {opacity: .6} 
        to {opacity: 1}
    }

    .dots-container {
        text-align: center;
        padding: 10px 0 20px; 
    }

    .dot {
        cursor: pointer;
        height: 12px; 
        width: 12px;
        margin: 0 5px; 
        background-color: #ccc; 
        border-radius: 50%;
        display: inline-block;
        transition: background-color 0.6s ease;
    }

    .active-dot, .dot:hover {
        background-color: var(--cor-secundaria);
    }

    /* Estilos para a Secção de Vídeo - MARGEM INFERIOR AJUSTADA */
    .project-video-section {
        /* Herda estilos de .project-section */
    }
    .video-responsive-container {
        width: 100%;
        max-width: 800px; 
        margin: 30px auto 50px; /* Margem inferior aumentada para 50px */
        box-shadow: var(--sombra-caixa);
        border-radius: var(--borda-radius);
        overflow: hidden; 
    }
    .video-responsive-container video { 
        display: block; 
        width: 100%;   
        height: auto;  
        border-radius: var(--borda-radius); 
    }


    .project-links-detail {
        margin-top: 40px; 
        text-align: center;
    }

    .project-links-detail .btn {
        margin: 5px 10px; 
        padding: 12px 28px; 
    }
     
    .back-to-portfolio {
        display: block; 
        margin: 50px auto 30px; 
        text-align: center; 
    }
    .back-to-portfolio a {
        color: var(--cor-secundaria);
        text-decoration: none;
        font-weight: bold;
        padding: 12px 22px; 
        border: 1px solid var(--cor-secundaria);
        border-radius: var(--borda-radius);
        transition: background-color 0.3s ease, color 0.3s ease;
    }
    .back-to-portfolio a:hover {
        background-color: var(--cor-secundaria);
        color: var(--cor-texto-claro);
    }

    /* Estilos do Modal para Imagens */
    .modal {
        display: none; 
        position: fixed; 
        z-index: 9999; 
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        overflow: auto; 
        background-color: rgba(0,0,0,0.9);
        padding: 20px; 
    }

    .modal.modal-visible {
        display: flex !important; 
        align-items: center; 
        justify-content: center; 
    }

    .modal-inner-container { 
        display: flex;
        flex-direction: column;
        align-items: center; 
        justify-content: center; 
        width: auto; 
        max-width: 90%; 
        max-height: 90vh; 
        text-align: center; 
        transform: translateX(5%); 
    }

    .modal-content { 
        display: block; 
        max-width: 100%; 
        max-height: calc(100% - 60px); 
        object-fit: contain; 
        border-radius: var(--borda-radius);
        margin-bottom: 15px; 
        z-index: 10000; 
    }

    #modalCaption {
        width: auto; 
        max-width: 100%; 
        color: #ccc;
        padding: 0 10px; 
        font-size: 0.9rem;
        z-index: 10000; 
    }

    .modal-content, #modalCaption {
        animation-name: zoom;
        animation-duration: 0.5s;
    }

    @keyframes zoom {
        from {transform:scale(0.8)} 
        to {transform:scale(1)}
    }

    .modal-close {
        position: absolute;
        top: 15px;
        right: 35px;
        color: #f1f1f1;
        font-size: 40px;
        font-weight: bold;
        transition: 0.3s;
        z-index: 10001; 
        cursor: pointer; 
    }

    .modal-close:hover,
    .modal-close:focus {
        color: #bbb;
        text-decoration: none;
    }


    /* Media Queries para Responsividade */

    @media (max-width: 992px) { 
        #inicio h1 {
            font-size: 3rem;
        }
        #inicio .subtitle {
            font-size: 1.15rem;
        }
        .about-content-grid { 
            gap: 30px; 
            grid-template-columns: 1fr; 
        }
        .about-column-title { 
            text-align: center;
        }
        
        .projects-grid {
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); 
        }
        .project-detail-header h1 { 
            font-size: 2.4rem;
        }
        .slideshow-container,
        .video-responsive-container { 
            max-width: 90%; 
        }
        .modal-inner-container {
            transform: translateX(0); 
        }
    }

    @media (max-width: 768px) {
        header .container {
            flex-direction: row; 
            justify-content: space-between; 
        }

        header nav { 
            position: absolute;
            top: 100%; 
            left: 0;
            right: 0;
            background-color: var(--cor-fundo-secao);
            width: 100%;
            max-height: 0; 
            overflow: hidden; 
            transition: max-height 0.3s ease-in-out, box-shadow 0.3s ease-in-out; 
            box-shadow: none; 
        }
        
        header nav.active { 
             max-height: 350px; 
             box-shadow: var(--sombra-caixa); 
        }

        header nav ul { 
            flex-direction: column; 
            width: 100%;
            padding: 10px 0; 
        }

        header nav ul li {
            margin: 0; 
            width: 100%;
        }
        header nav ul li a {
            display: block; 
            padding: 15px 20px; 
            text-align: center;
            border-bottom: 1px solid var(--cor-fundo); 
        }
        header nav ul li a::after { 
            display: none; 
        }
         header nav ul li:last-child a { 
            border-bottom: none;
        }

        .menu-toggle {
            display: flex; 
        }
        
        .menu-toggle.active .bar:nth-child(1) {
            transform: translateY(8px) rotate(45deg); 
        }
        .menu-toggle.active .bar:nth-child(2) {
            opacity: 0; 
        }
        .menu-toggle.active .bar:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg); 
        }

        #inicio h1 {
            font-size: 2.5rem;
        }
        #inicio .subtitle {
            font-size: 1.1rem;
        }

        .section-title { 
            font-size: 2rem;
        }
         .about-column-title { 
            font-size: 1.8rem; 
        }

        .projects-grid {
            grid-template-columns: 1fr; 
        }
        .project-category-title {
            font-size: 1.5rem;
        }
        .specialties-list { 
            grid-template-columns: 1fr; 
        }
        .project-detail-header h1 { 
            font-size: 2rem;
        }
        .project-detail-header .project-subtitle {
            font-size: 1rem;
        }
        .project-section h2 { 
            font-size: 1.5rem;
        }
        .slideshow-container,
        .video-responsive-container { 
            max-width: 100%; 
        }
         .prev, .next { 
            padding: 12px;
            font-size: 16px;
            margin-top: -18px;
        }
        .modal-content { 
            max-width: 95%; 
            max-height: 85vh; 
        }
        .modal {
            padding: 10px; 
        }
         #modalCaption {
            width: 90%;
        }
    }

    @media (max-width: 480px) { 
        #inicio h1 {
            font-size: 2rem;
        }
        #inicio .subtitle {
            font-size: 1rem;
        }
        .hero-buttons .btn { 
            width: 100%; 
            margin-bottom: 10px;
        }
        .hero-buttons {
            gap: 10px; 
        }
         .hero-buttons .btn:last-child {
            margin-bottom: 0;
        }

        .project-cover-image {
            height: 180px; 
        }
        .project-info h3 {
            font-size: 1.15rem;
        }
        .project-info p {
            font-size: 0.85rem;
        }
        
        .about-column-title { 
            text-align: center; 
            font-size: 1.8rem; 
        }
        .about-content-grid > .about-column:last-child { 
             margin-top: 20px;
        }
         .modal-inner-container {
            transform: translateX(0); 
        }
    }