/* Reset e Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS Variables for Themes */
:root {
    /* Light Theme (Default) */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #e2e8f0;
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-tertiary: #6b7280;
    --accent-primary: #2563eb;
    --accent-secondary: #3b82f6;
    --accent-tertiary: #e0e7ff;
    --accent-text: #3730a3;
    --border-color: #e5e7eb;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-heavy: rgba(37, 99, 235, 0.3);
    --header-bg: rgba(255, 255, 255, 0.95);
    --card-bg: #ffffff;
    --skill-bg: #f8fafc;
}

/* Dark Theme */
.dark-theme {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --accent-primary: #3b82f6;
    --accent-secondary: #60a5fa;
    --accent-tertiary: #1e40af;
    --accent-text: #93c5fd;
    --border-color: #475569;
    --shadow-light: rgba(0, 0, 0, 0.3);
    --shadow-medium: rgba(0, 0, 0, 0.4);
    --shadow-heavy: rgba(59, 130, 246, 0.3);
    --header-bg: rgba(15, 23, 42, 0.95);
    --card-bg: #1e293b;
    --skill-bg: #334155;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 20px var(--shadow-light);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.theme-toggle {
    background: none;
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.theme-toggle:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
    transform: scale(1.1);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    padding-top: 70px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: center;
}

.hero-image {
    display: flex;
    justify-content: center;
}



.hero-name {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.hero-role {
    display: block;
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-tertiary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.tag {
    background: var(--accent-tertiary);
    color: var(--accent-text);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    box-shadow: 0 4px 15px var(--shadow-heavy);
}

.btn-primary:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-heavy);
}

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

.btn-secondary:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

/* Section Styles */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--accent-primary);
    border-radius: 2px;
}

/* Sobre Section */
.sobre {
    padding: 100px 0;
    background: var(--bg-primary);
}

.sobre-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.sobre-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    text-align: justify;
}

.sobre-skills h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.skills-grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.skill-item {
    background: var(--skill-bg);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease;
    border: 1px solid var(--border-color);
}

.skill-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-light);
}

.skill-item i {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.skill-item h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.skill-item p {
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

.languages h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.language-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.language {
    background: var(--accent-tertiary);
    color: var(--accent-text);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 500;
}

/* Experiência Section */
.experiencia {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: var(--border-color);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 2rem;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 2rem;
}

.timeline-marker {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--accent-primary);
    border-radius: 50%;
    top: 0;
    z-index: 2;
}

.timeline-item:nth-child(odd) .timeline-marker {
    right: -10px;
}

.timeline-item:nth-child(even) .timeline-marker {
    left: -10px;
}

.timeline-content {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--shadow-light);
    transition: transform 0.3s ease;
    border: 1px solid var(--border-color);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-medium);
}

.timeline-header h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.company {
    display: block;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 0.25rem;
}

.period {
    display: block;
    color: var(--text-tertiary);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.location {
    display: block;
    color: var(--text-tertiary);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.timeline-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.timeline-activities h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.timeline-activities ul {
    color: var(--text-secondary);
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.timeline-activities li {
    margin-bottom: 0.25rem;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech {
    background: var(--accent-tertiary);
    color: var(--accent-text);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Formação Section */
.formacao {
    padding: 100px 0;
    background: var(--bg-primary);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.education-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease;
    border: 2px solid transparent;
    box-shadow: 0 2px 10px var(--shadow-light);
}

.education-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 10px 25px var(--shadow-heavy);
}

.education-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.education-icon i {
    font-size: 1.5rem;
    color: white;
}

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

.institution {
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.period {
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

.certifications {
    max-width: 800px;
    margin: 0 auto;
}

.certifications h3 {
    text-align: center;
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.cert-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.cert-item {
    background: var(--accent-tertiary);
    padding: 1rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.3s ease;
}

.cert-item:hover {
    transform: translateX(5px);
}

.cert-item i {
    color: var(--accent-primary);
    font-size: 1.2rem;
}

.cert-item span {
    color: var(--accent-text);
    font-weight: 500;
}

/* Contato Section */
.contato {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.contato-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.contato-info h3 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.contato-info > p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 2px 10px var(--shadow-light);
    border: 1px solid var(--border-color);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon i {
    color: white;
    font-size: 1.2rem;
}

.contact-details h4 {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.contact-details a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
}

.contact-details a:hover {
    text-decoration: underline;
}

.contact-details p {
    color: var(--text-tertiary);
}

.cta-card {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    padding: 3rem;
    border-radius: 16px;
    text-align: center;
    color: white;
}

.cta-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.cta-card p {
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

.cta-card .btn:hover {
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-info h3 {
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.footer-info p {
    color: var(--text-tertiary);
}

.footer-links a {
    color: var(--text-tertiary);
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-tertiary);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .sobre-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contato-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 3rem !important;
        padding-right: 0 !important;
    }
    
    .timeline-marker {
        left: 10px !important;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--card-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px var(--shadow-light);
        padding: 2rem 0;
        border-top: 1px solid var(--border-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-controls {
        gap: 0.5rem;
    }

    .theme-toggle {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-name {
        font-size: 2rem;
    }
    
    .hero-role {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .profile-placeholder {
        width: 200px;
        height: 200px;
    }
    
    .profile-placeholder i {
        font-size: 4rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
    
    .education-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-list {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .timeline-item {
        padding-left: 2rem !important;
    }
    
    .timeline-content {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .hero-name {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .profile-placeholder {
        width: 150px;
        height: 150px;
    }
    
    .profile-placeholder i {
        font-size: 3rem;
    }
    
    .cta-card {
        padding: 2rem;
    }
    
    .timeline-content {
        padding: 1rem;
    }

    .theme-toggle {
        width: 30px;
        height: 30px;
        font-size: 0.8rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Scroll animations will be handled by JavaScript */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}



.profile-image {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 20px 40px var(--shadow-heavy);
    transition: transform 0.3s ease;
}

.profile-image:hover {
    transform: scale(1.05);
}

@media (max-width: 768px) {
    .profile-image {
        width: 200px;
        height: 200px;
    }
}