/* Reset e estilos gerais */
:root {
  /* Cores principais */
  --bg-primary: #ffffff;
  --bg-secondary: #f5f7fa;
  --bg-tertiary: #f8f9fa;
  --bg-gradient-start: #f5f7fa;
  --bg-gradient-end: #e4e7eb;
  
  /* Cores de texto */
  --text-primary: #333333;
  --text-secondary: #2c3e50;
  --text-light: #ffffff;
  --text-accent: #3498db;
  
  /* Cores de elementos */
  --primary-color: #0d1d2a;
  --secondary-color: #2d3e50;
  --border-color: #e9ecef;
  --shadow-color: rgba(0,0,0,0.1);
  --shadow-hover: rgba(0,0,0,0.2);
  
  /* Cores de estado */
  --hover-light: rgba(255,255,255,0.1);
  --hover-gray: #e9ecef;
  --hover-dark: #0056b3;
  
  /* Cores específicas de componentes */
  --header-bg: #2d3e50;
  --card-bg: #ffffff;
  --modal-bg: rgba(0,0,0,0.9);
  --back-to-top-bg: #3498db;
  --button-active-bg: #f8f9fa;
  --button-active-text: #2c3e50;
  --code-button-bg: #b9b9b9;
  --code-button-text: #2c3e50;
  --code-button-hover: #e4e4e4;
}

:root[data-theme="dark"] {
  /* Cores principais */
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --bg-tertiary: #3d3d3d;
  --bg-gradient-start: #2d2d2d;
  --bg-gradient-end: #1a1a1a;
  
  /* Cores de texto */
  --text-primary: #ffffff;
  --text-secondary: #e9ecef;
  --text-light: #ffffff;
  --text-accent: #4dabf7;
  
  /* Cores de elementos */
  --primary-color: #0d1d2a;
  --secondary-color: #34495e;
  --border-color: #495057;
  --shadow-color: rgba(0,0,0,0.3);
  --shadow-hover: rgba(0,0,0,0.5);
  
  /* Cores de estado */
  --hover-light: rgba(255,255,255,0.2);
  --hover-gray: #495057;
  --hover-dark: #4dabf7;
  
  /* Cores específicas de componentes */
  --header-bg: #1e2a3a;
  --card-bg: #2d2d2d;
  --modal-bg: rgba(0,0,0,0.95);
  --back-to-top-bg: #4dabf7;
  --button-active-bg: #495057;
  --button-active-text: #ffffff;
  --code-button-bg: #495057;
  --code-button-text: #ffffff;
  --code-button-hover: #5a6268;
}

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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Header e Navegação */
header {
    background: var(--header-bg);
    color: var(--text-light);
    padding: 1rem 0;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px var(--shadow-color);
    transition: background-color 0.3s ease;
}


nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 1rem 0;
}

nav a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

nav a:hover,
nav a.active {
    background: var(--hover-light);
}

/* Seletor de Idioma */
.language-switch {
    text-align: center;
    margin: 1rem 0;
}

.language-switch button {
    background: var(--code-button-bg);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    margin: 0 0.25rem;
    border: none;
}

.language-switch button:hover {
    background: var(--code-button-hover);
}

.language-switch button.active {
    background: var(--button-active-bg);
    color: var(--button-active-text);
    border: 2px solid var(--border-color);
    box-shadow: 0 2px 4px var(--shadow-color);
}

/* Conteúdo Principal */
main {
    background: var(--bg-primary);
    border-radius: 8px;
    box-shadow: 0 2px 4px var(--shadow-color);
    padding: 2rem;
    margin: 0 auto;
    max-width: 1200px;
    transition: background-color 0.3s ease;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
    color: var(--text-light);
}

h2 {
    font-size: 1.8rem;
    color: var(--text-secondary);
    margin: 2rem 0 1rem;
}

/* Seção de Formação */
.education {
    padding: 1rem 0;
}

.education-item {
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 4px var(--shadow-color);
    transition: transform 0.3s, box-shadow 0.3s, background-color 0.3s ease;
}

.education-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 8px var(--shadow-hover);
}

.education-item h3 {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.education-item .period {
    color: var(--text-accent);
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

/* Galeria de Imagens */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    padding: 1rem 0;
}

.certificate-card, .workshop-card {
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px var(--shadow-color);
    transition: transform 0.3s, box-shadow 0.3s, background-color 0.3s ease;
}

.certificate-card img, .workshop-card img {
    width: 100%;
    height: auto;
    cursor: pointer;
    transition: transform 0.3s;
}

.certificate-card:hover, .workshop-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px var(--shadow-hover);
}

.card-description {
    padding: 1rem;
    background: var(--card-bg);
    font-size: 0.9rem;
    line-height: 1.4;
    border-top: 1px solid var(--border-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--modal-bg);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.modal img {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
    cursor: zoom-out;
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease-out;
}

/* Botão Voltar ao Topo */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--back-to-top-bg);
    color: var(--text-light);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s, background-color 0.3s ease;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.back-to-top:hover {
    opacity: 1;
}

/* Botões de Alternância */
.section-toggle {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
}

.section-toggle button {
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.section-toggle button:hover {
    background: var(--hover-gray);
    transform: translateY(-2px);
    box-shadow: 0 4px 6px var(--shadow-color);
}

.section-toggle button.active {
    background: var(--secondary-color);
    color: var(--text-light);
    border-color: var(--secondary-color);
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
    animation: fadeIn 0.5s ease-out;
}

/* Cards de Projetos */
.project-card {
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 5px var(--shadow-color);
    margin: 1rem;
    padding: 1rem;
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px var(--shadow-hover);
}

.project-link, .view-code {
    display: inline-block;
    background: var(--primary-color);
    color: var(--text-light);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    text-decoration: none;
    margin-top: 1rem;
    transition: background-color 0.3s ease;
}

.view-code {
    background: var(--code-button-bg);
    color: var(--code-button-text);
}

.project-link:hover {
    background: var(--hover-dark);
}

.view-code:hover {
    background: var(--code-button-hover);
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 1rem;
}

/* Responsividade */
@media (max-width: 768px) {
    main {
        padding: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .gallery {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1rem;
    }

    .card-description {
        font-size: 0.85rem;
    }

    .modal img {
        max-width: 95%;
    }
}

/* Animações */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

section {
    animation: fadeIn 0.5s ease-out;
}


.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--primary-color);
    color: var(--text-light);
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.3s ease;
    font-family: 'Segoe UI', Arial, sans-serif;
}
    
.theme-toggle:hover {
    opacity: 0.9;
}