@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* --- DESIGN SYSTEM & VARIÁVEIS --- */
:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(30, 41, 59, 0.4);
  --bg-card-hover: rgba(30, 41, 59, 0.6);
  
  --accent-cyan: #38bdf8;
  --accent-indigo: #818cf8;
  --accent-teal: #2dd4bf;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(56, 189, 248, 0.3);
  
  --gradient-primary: linear-gradient(135deg, var(--accent-cyan), var(--accent-indigo));
  --gradient-teal: linear-gradient(135deg, var(--accent-teal), var(--accent-indigo));
  --glow-shadow: 0 0 20px rgba(56, 189, 248, 0.15);
  
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- RESET & ESTRUTURA --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* --- EFEITO GLOW DE FUNDO (DECORATIVO) --- */
body::before, body::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  filter: blur(150px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.15;
}

body::before {
  top: 10%;
  left: -100px;
  background: var(--accent-cyan);
}

body::after {
  top: 60%;
  right: -100px;
  background: var(--accent-indigo);
}

/* --- ELEMENTOS GERAIS --- */
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

li {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 6rem 0;
  border-bottom: 1px solid var(--border-color);
}

/* --- TÍTULOS --- */
.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 3.5rem;
  position: relative;
  letter-spacing: -0.025em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 50px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* --- HEADER / NAVEGAÇÃO --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(11, 15, 25, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-normal);
}

.header.scrolled {
  background: rgba(11, 15, 25, 0.9);
  padding: 0.5rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4.5rem;
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--text-primary);
  -webkit-text-fill-color: var(--text-primary);
  font-weight: 300;
}

.nav-menu {
  display: flex;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-normal);
}

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

.menu-toggle {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
}

/* --- HERO SECTION --- */
.hero {
  padding-top: 10rem;
  padding-bottom: 8rem;
  min-height: 85vh;
  display: flex;
  align-items: center;
}

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

.badge-location {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2rem;
}

.badge-location i {
  font-size: 0.875rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.hero h1 span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero h2 {
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  max-width: 680px;
}

.hero-actions {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-normal);
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--bg-primary);
  border: none;
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.5);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--border-color-hover);
  background: rgba(30, 41, 59, 0.3);
  transform: translateY(-2px);
}

/* --- CARDS & GLASSMORPHISM --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.25rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: var(--transition-normal);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-color-hover);
  box-shadow: var(--glow-shadow);
  transform: translateY(-4px);
}

/* --- COMPETÊNCIAS / SKILLS --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.skill-category h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.skill-category h3 i {
  color: var(--accent-cyan);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.tag {
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.tag:hover {
  background: rgba(56, 189, 248, 0.08);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* --- EXPERIÊNCIA --- */
.experience-timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  padding-left: 2.5rem;
}

.experience-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 7px;
  width: 2px;
  height: 100%;
  background: linear-gradient(to bottom, var(--accent-cyan) 0%, var(--accent-indigo) 50%, var(--bg-primary) 100%);
}

.timeline-item {
  position: relative;
  margin-bottom: 3.5rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -2.5rem;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent-cyan);
  z-index: 2;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.5);
  transition: var(--transition-fast);
}

.timeline-item:hover .timeline-dot {
  background: var(--accent-indigo);
  border-color: var(--accent-indigo);
  box-shadow: 0 0 12px rgba(129, 140, 248, 0.7);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.timeline-title h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.timeline-company {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

.timeline-date {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
}

.timeline-body {
  color: var(--text-secondary);
}

.timeline-body ul {
  padding-left: 1.25rem;
}

.timeline-body li {
  list-style: disc;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

/* --- PROJETOS --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-icon {
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.project-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.project-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.project-tags span {
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  color: var(--text-secondary);
}

/* --- ARTIGOS / BLOG --- */
.articles-section {
  position: relative;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.article-card {
  cursor: pointer;
}

.article-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.article-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.35;
  transition: var(--transition-fast);
}

.article-card:hover h3 {
  color: var(--accent-cyan);
}

.article-excerpt {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.article-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.read-more {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.article-card:hover .read-more i {
  transform: translateX(4px);
}

.read-more i {
  transition: var(--transition-fast);
}

/* --- RENDERIZAÇÃO DO ARTIGO COMPLETO (SPA VIEW) --- */
.article-detail-view {
  display: none;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-cyan);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 3rem;
  cursor: pointer;
  background: none;
  border: none;
  transition: var(--transition-fast);
}

.btn-back:hover {
  transform: translateX(-4px);
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3.5rem;
  align-items: start;
}

.article-main-content {
  min-width: 0;
}

.article-sidebar {
  position: sticky;
  top: 6.5rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.75rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.sidebar-widget h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.sidebar-widget h3 i {
  color: var(--accent-cyan);
}

.search-box {
  display: flex;
  background: rgba(11, 15, 25, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  transition: var(--transition-fast);
}

.search-box:focus-within {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.15);
}

.search-box input {
  flex-grow: 1;
  background: none;
  border: none;
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box button {
  background: none;
  border: none;
  padding: 0 1rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-fast);
}

.search-box:focus-within button {
  color: var(--accent-cyan);
}

.sidebar-article-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 0;
  margin: 0;
}

.sidebar-article-list li {
  list-style: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  padding-bottom: 1rem;
}

.sidebar-article-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.sidebar-article-list a {
  display: block;
}

.sidebar-article-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
  transition: var(--transition-fast);
}

.sidebar-article-list li:hover .sidebar-article-title {
  color: var(--accent-cyan);
}

.sidebar-article-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.search-results {
  margin-top: 1rem;
  max-height: 250px;
  overflow-y: auto;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

.search-results-empty {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
  padding: 1rem 0;
}

.article-header {
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 2rem;
}

.article-header-meta {
  display: flex;
  gap: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.article-header-meta span {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.article-header h1 {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.article-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Estilo do conteúdo Markdown renderizado */
.markdown-body {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.markdown-body p {
  margin-bottom: 1.5rem;
}

.markdown-body h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 2.5rem;
  margin-bottom: 1.25rem;
  letter-spacing: -0.015em;
}

.markdown-body h3 {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.markdown-body ul, .markdown-body ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.markdown-body li {
  list-style: initial;
  margin-bottom: 0.5rem;
}

.markdown-body blockquote {
  border-left: 4px solid var(--accent-cyan);
  background: rgba(56, 189, 248, 0.05);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 8px 8px 0;
  font-style: italic;
}

.markdown-body code {
  font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
  font-size: 0.9em;
  background: rgba(255, 255, 255, 0.07);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  color: var(--accent-teal);
}

.markdown-body pre {
  background: #080c14;
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.markdown-body pre code {
  background: none;
  padding: 0;
  color: var(--text-primary);
  font-size: 0.875rem;
}

.markdown-body hr {
  border: 0;
  height: 1px;
  background: var(--border-color);
  margin: 2.5rem 0;
}

/* --- CONTATO --- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem;
}

.contact-icon {
  font-size: 2rem;
  color: var(--accent-cyan);
  margin-bottom: 1.25rem;
  width: 60px;
  height: 60px;
  background: rgba(56, 189, 248, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
}

.contact-card:hover .contact-icon {
  background: var(--gradient-primary);
  color: var(--bg-primary);
  box-shadow: var(--glow-shadow);
  transform: scale(1.05);
}

.contact-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.contact-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.contact-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.contact-card:hover .contact-link {
  color: var(--text-primary);
}

/* --- FOOTER --- */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border-color);
  background: #080c14;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.copyright {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: 1.5rem;
}

.footer-social-link {
  color: var(--text-muted);
  font-size: 1.25rem;
}

.footer-social-link:hover {
  color: var(--accent-cyan);
}

/* --- RESPONSIVIDADE --- */
@media (max-width: 768px) {
  body::before, body::after {
    display: none;
  }
  
  .section-title {
    font-size: 1.85rem;
    margin-bottom: 2.5rem;
  }
  
  section {
    padding: 4.5rem 0;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 4.5rem;
    left: -100%;
    width: 100%;
    height: calc(100vh - 4.5rem);
    background: var(--bg-primary);
    flex-direction: column;
    align-items: center;
    padding-top: 3rem;
    gap: 2rem;
    transition: var(--transition-normal);
    border-top: 1px solid var(--border-color);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .hero {
    padding-top: 8rem;
    padding-bottom: 5rem;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero h2 {
    font-size: 1.35rem;
  }
  
  .experience-timeline {
    padding-left: 1.5rem;
  }
  
  .experience-timeline::before {
    left: 4px;
  }
  
  .timeline-dot {
    left: -1.5rem;
    top: 5px;
    width: 12px;
    height: 12px;
    border-width: 2px;
  }
  
  .timeline-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .timeline-date {
    margin-top: 0.25rem;
  }
  
  .article-header h1 {
    font-size: 2rem;
  }
  
  .footer-container {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 992px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .article-sidebar {
    position: static;
  }
}