/* ==================== VARIÁVEIS CSS ==================== */
:root {
    /* Cores Dark Theme */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-card: #1f2937;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent-primary: #3b82f6;
    --accent-hover: #2563eb;
    --border-color: #30363d;
    --shadow: rgba(0, 0, 0, 0.2);
    
    /* Tipografia */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Espaçamento */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* Transições */
    --transition: 0.2s ease;
}

/* ==================== RESET E BASE ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    line-height: 1.7;
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

/* ==================== TIPOGRAFIA ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==================== UTILITÁRIOS ==================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-alt {
    background-color: var(--bg-secondary);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: 1rem;
    color: var(--text-primary);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--accent-primary);
    border-radius: 2px;
}

/* ==================== NAVBAR ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem var(--spacing-md);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.nav-logo {
    display: none;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-logo span {
    color: var(--accent-primary);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    justify-content: center;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-primary);
}

.btn-nav {
    padding: 0.5rem 1.5rem;
    background-color: var(--accent-primary);
    color: white;
    border-radius: 6px;
    transition: background-color var(--transition);
}

.btn-nav:hover {
    background-color: var(--accent-hover);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
    border-radius: 2px;
}

/* ==================== HERO SECTION ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    padding-top: 80px;
}

.hero-content {
    max-width: 900px;
    text-align: center;
    padding: var(--spacing-md);
}

.hero-greeting {
    font-size: 1.1rem;
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    min-height: 2rem;
}

.cursor {
    animation: blink 1s infinite;
    color: var(--accent-primary);
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.hero-social {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.hero-social a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-card);
    color: var(--text-secondary);
    border-radius: 50%;
    border: 1px solid var(--border-color);
    transition: all var(--transition);
}

.hero-social a:hover {
    background-color: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.hero-social svg {
    width: 20px;
    height: 20px;
}

/* ==================== BOTÕES ==================== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    transition: all var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-secondary {
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    background-color: transparent;
}

.btn-secondary:hover {
    background-color: var(--accent-primary);
    color: white;
}

.btn-outline {
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    background-color: transparent;
}

.btn-outline:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* ==================== SOBRE ==================== */
.about-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 280px;
    border-radius: 12px;
    object-fit: cover;
    border: 3px solid var(--border-color);
}

.about-content h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-primary);
}

.about-content p {
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.about-info {
    display: grid;
    gap: 1rem;
    margin: var(--spacing-md) 0;
}

.info-item {
    padding: 1rem;
    background-color: var(--bg-card);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-size: 0.95rem;
}

.info-item strong {
    color: var(--accent-primary);
    margin-right: 0.5rem;
}

.about-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

/* ==================== FORMAÇÃO ==================== */
.education-card {
    background-color: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    max-width: 800px;
    margin: 0 auto;
    transition: border-color var(--transition);
}

.education-card:hover {
    border-color: var(--accent-primary);
}

.education-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.education-content h4 {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.education-date {
    display: inline-block;
    padding: 0.35rem 0.875rem;
    background-color: var(--bg-secondary);
    color: var(--accent-primary);
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.education-content p:last-child {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* ==================== CURSOS ==================== */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.course-card {
    background-color: var(--bg-card);
    padding: var(--spacing-md);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: border-color var(--transition);
    display: none;
}

.course-card.active {
    display: block;
}

.course-card:hover {
    border-color: var(--accent-primary);
}

.course-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.course-card h4 {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
}

.course-date {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-secondary);
    color: var(--accent-primary);
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.course-card p:last-child {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* ==================== TIMELINE ==================== */
.timeline {
    position: relative;
    padding: var(--spacing-md) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background-color: var(--accent-primary);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    padding-left: 50px;
    margin-bottom: var(--spacing-lg);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -7px;
    top: 0;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--accent-primary);
    border: 3px solid var(--bg-secondary);
    z-index: 1;
}

.timeline-content {
    background-color: var(--bg-card);
    padding: var(--spacing-md);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.timeline-content:hover {
    border-color: var(--accent-primary);
}

.timeline-badge {
    display: inline-block;
    padding: 0.35rem 0.875rem;
    background-color: var(--accent-primary);
    color: white;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.timeline-date {
    display: inline-block;
    padding: 0.35rem 0.875rem;
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.timeline-content h3 {
    margin-bottom: 0.25rem;
    font-size: 1.3rem;
}

.timeline-content h4 {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.timeline-content ul {
    margin-top: var(--spacing-sm);
}

.timeline-content li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.timeline-content li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-size: 1.2rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--spacing-sm);
}

.tags span {
    padding: 0.35rem 0.875rem;
    background-color: rgba(74, 158, 255, 0.1);
    color: var(--accent-primary);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(74, 158, 255, 0.2);
}

/* ==================== PROJETOS ==================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background-color: var(--bg-card);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition);
    display: block;
    opacity: 1;
}

.project-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow);
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    opacity: 1 !important;
    transition: transform var(--transition);
}

.project-card:hover img {
    transform: scale(1.05);
}

.project-info {
    padding: var(--spacing-md);
}

.project-info h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
    color: var(--text-primary);
}

.project-info p {
    font-size: 0.95rem;
    color: var(--accent-primary);
    margin: 0;
    font-weight: 500;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: var(--spacing-lg);
}

.pagination-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-card);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition);
}

.pagination-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.pagination-btn.active {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

/* ==================== NEWSLETTER ==================== */
#newsletter .project-card {
    display: block !important;
    opacity: 1 !important;
}

/* ==================== CONTATO ==================== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.contact-card {
    background-color: var(--bg-card);
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: border-color var(--transition);
}

.contact-card:hover {
    border-color: var(--accent-primary);
}

.contact-card svg {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-sm);
    color: var(--accent-primary);
}

.contact-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.contact-card p {
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

/* ==================== FOOTER ==================== */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    text-align: center;
}

.footer p {
    color: var(--text-secondary);
    margin: 0;
}

/* ==================== SCROLL TO TOP ==================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--accent-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition);
    z-index: 999;
    font-size: 1.5rem;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background-color: var(--accent-hover);
}

/* ==================== CORREÇÕES CRÍTICAS ==================== */
/* FORÇA todas as imagens a serem visíveis */
img {
    opacity: 1 !important;
    visibility: visible !important;
}

/* Remove qualquer estilo inline problemático */
.project-card[style*="opacity"] {
    opacity: 1 !important;
}

.project-card img[style*="opacity"] {
    opacity: 1 !important;
}

/* ==================== RESPONSIVIDADE ==================== */
@media (max-width: 768px) {
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.75rem; }
    .section-title { font-size: 2rem; }
    
    /* NAVBAR MOBILE - CORREÇÕES */
    .nav-container {
        justify-content: space-between;
        padding: 1rem;
    }
    
    .nav-logo {
        display: block;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    
    .nav-toggle {
        display: flex;
        position: relative;
        left: 0;
        transform: none;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--bg-secondary);
        flex-direction: column;
        gap: 0;
        padding: 2rem 1.5rem;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-link {
        padding: 1.25rem 0;
        border-bottom: 1px solid var(--border-color);
        text-align: left;
        font-size: 1.15rem;
        display: block;
    }
    
    .nav-link:first-child {
        border-top: 1px solid var(--border-color);
    }
    
    .btn-nav {
        background-color: transparent;
        border: 1px solid var(--accent-primary);
        color: var(--accent-primary);
        padding: 1.25rem 0;
        border-radius: 0;
        border-left: none;
        border-right: none;
        text-align: left;
    }
    
    .btn-nav:hover {
        background-color: rgba(59, 130, 246, 0.1);
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-image img {
        margin: 0 auto;
    }
    
    .about-buttons {
        flex-direction: column;
    }
    
    .timeline::before {
        left: 8px;
    }
    
    .timeline-item {
        padding-left: 40px;
    }
    
    .timeline-item::before {
        left: 0;
    }
    
    .courses-grid,
    .projects-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    .section-title { font-size: 1.75rem; }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .nav-container {
        padding: 0.75rem;
    }
}