:root {
  /* Tech Innovation Theme Colors */
  --color-bg-main: #1e1e1e;
  --color-bg-alt: #2a2a2a;
  --color-text-main: #ffffff;
  --color-text-muted: #b0b0b0;
  --color-primary: #0066ff;
  --color-accent: #00ffff;

  --font-heading: 'Roboto', sans-serif;
  --font-body: 'Space Mono', monospace;

  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;

  --border-radius: 8px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-main);
  color: var(--color-text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

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

a:hover {
  color: var(--color-accent);
}

ul {
  list-style: none;
}

.text-primary {
  color: var(--color-primary);
}

.highlight {
  color: var(--color-accent);
}

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

.section {
  padding: var(--spacing-xl) 0;
  position: relative;
  overflow: hidden;
  background-color: var(--color-bg-main);
  z-index: 1;
}

/* Subtle border glow between sections */
.section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 102, 255, 0.3), transparent);
  box-shadow: 0 0 15px rgba(0, 102, 255, 0.5);
}

.bg-alt {
  background-color: var(--color-bg-alt);
  position: relative;
}

/* Animated background gradient for bg-alt sections to differentiate them more */
.bg-alt::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(0, 255, 255, 0.03) 0%, transparent 50%);
  z-index: -1;
  animation: pulseBg 15s infinite linear;
}

@keyframes pulseBg {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s ease-out;
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s ease-out;
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

.delay-100 {
  transition-delay: 100ms;
}

.delay-200 {
  transition-delay: 200ms;
}

.delay-300 {
  transition-delay: 300ms;
}

.section-header {
  margin-bottom: var(--spacing-lg);
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  display: inline-block;
  position: relative;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

.title-line {
  height: 4px;
  width: 60px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
  transition: width 0.5s ease;
}

.section:hover .title-line {
  width: 100px;
  box-shadow: 0 0 10px var(--color-primary);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(30, 30, 30, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid #333;
}

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

.menu-toggle {
  display: none;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 2px;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  color: var(--color-text-main);
  font-weight: 500;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

.lang-toggle {
  display: flex;
  gap: 0.5rem;
}

.lang-btn {
  background: transparent;
  border: 1px solid #444;
  color: var(--color-text-muted);
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 500;
  transition: var(--transition);
}

.lang-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-text-main);
}

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

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 var(--spacing-lg);
  position: relative;
  background: radial-gradient(circle at 50% 50%, #2a2a35 0%, var(--color-bg-main) 100%);
}

.hero-title {
  font-size: clamp(3rem, 5vw, 5rem);
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  font-weight: 400;
  font-family: var(--font-body);
  display: inline-block;
  min-height: 2.4rem;
  /* Prevent layout shift during typing */
}

/* Typing Cursor Effect */
.cursor {
  display: inline-block;
  width: 10px;
  height: 1.2rem;
  background-color: var(--color-accent);
  margin-left: 4px;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-heading);
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  box-shadow: 0 4px 14px rgba(0, 102, 255, 0.4);
}

.btn-primary:hover {
  background-color: #0052cc;
  transform: translateY(-2px);
  color: white;
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-bg-main);
  box-shadow: 0 4px 14px rgba(0, 255, 255, 0.4);
}

.btn-accent:hover {
  background-color: #00cccc;
  color: var(--color-bg-main);
  transform: translateY(-2px);
}

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

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--color-text-muted);
  font-size: 1.5rem;
  opacity: 0.7;
  transition: var(--transition);
  animation: bounce 2s infinite;
}

.scroll-indicator i {
  line-height: 0.5;
}

.scroll-indicator i.delay-2 {
  opacity: 0.5;
  animation: fadeIt 2s infinite reverse;
}

.scroll-indicator:hover {
  color: var(--color-accent);
  opacity: 1;
}

@keyframes bounce {

  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0) translateX(-50%);
  }

  40% {
    transform: translateY(-15px) translateX(-50%);
  }

  60% {
    transform: translateY(-7px) translateX(-50%);
  }
}

@keyframes fadeIt {

  0%,
  100% {
    opacity: 0.3;
  }

  50% {
    opacity: 1;
  }
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.timeline-content {
  background: rgba(255, 255, 255, 0.05);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border-left: 3px solid var(--color-primary);
}

.timeline-header {
  display: block;
  /* Removed flex space-between */
  cursor: pointer;
}

.timeline-company {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-sm);
  font-style: italic;
}

.timeline-toggle-icon {
  display: inline-block;
  transition: transform 0.4s ease-out;
  font-size: 0.9rem;
  color: var(--color-accent);
}

.timeline-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s ease-out, margin-top 0.4s ease-out;
  margin-top: 0;
}

.timeline-body-inner {
  overflow: hidden;
}

.timeline-item.open .timeline-body {
  grid-template-rows: 1fr;
  margin-top: var(--spacing-sm);
}

.timeline-item.open .timeline-toggle-icon {
  transform: rotate(180deg);
}

.timeline-date {
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-heading);
}

.about-image {
  background: var(--color-bg-alt);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  border: 1px solid #333;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.about-image img {
  width: 100%;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-md);
  filter: grayscale(20%);
  transition: var(--transition);
}

.about-image:hover img {
  filter: grayscale(0%);
}

.about-info ul li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #333;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.about-info ul li strong {
  color: var(--color-text-main);
  margin-right: 0.5rem;
}

.about-text p {
  margin-bottom: var(--spacing-md);
  font-size: 1.05rem;
  color: #ddd;
  text-align: justify;
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 900px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #333;
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: var(--spacing-xl);
}

.timeline-dot {
  position: absolute;
  left: 14px;
  top: 5px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg-main);
  box-shadow: 0 0 0 3px #333;
  transition: var(--transition);
}

.timeline-item:hover .timeline-dot {
  background: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent);
}

.timeline-date {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(0, 102, 255, 0.1);
  color: var(--color-accent);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.timeline-role {
  font-size: 1.4rem;
  color: var(--color-text-main);
  margin-bottom: 0.2rem;
}

.timeline-company {
  display: block;
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  font-weight: 500;
}

.timeline-details {
  list-style: none;
}

.timeline-details li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: #ddd;
}

.timeline-details li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

.timeline-desc {
  color: #ddd;
}

/* Skills/Certs Grid */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  padding: 0 var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.tag {
  background: rgba(0, 102, 255, 0.1);
  border: 1px solid rgba(0, 102, 255, 0.3);
  color: var(--color-accent);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.tag:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.list-container ul li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #333;
  color: #ddd;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

/* Footer */
footer {
  text-align: center;
  padding: var(--spacing-lg) 0;
  background: #151515;
  color: var(--color-text-muted);
  border-top: 1px solid #333;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #2a2a2a;
  color: var(--color-text-main);
  font-size: 1.2rem;
}

.social-links a:hover {
  background: var(--color-primary);
  transform: translateY(-3px);
}

/* Responsive constraints */
@media (max-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-image {
    max-width: 400px;
    margin: 0 auto;
  }

  .skills-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-xl: 3rem;
    --spacing-lg: 1.5rem;
  }

  .nav-container {
    flex-direction: row;
    justify-content: space-between;
    padding: 1rem var(--spacing-lg);
  }

  .nav-links {
    position: fixed;
    top: 60px;
    /* height of navbar */
    left: -100%;
    width: 100%;
    height: calc(100vh - 60px);
    background-color: rgba(30, 30, 30, 0.98);
    backdrop-filter: blur(15px);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: var(--spacing-xl);
    gap: 2rem;
    transition: left 0.4s ease;
    z-index: 999;
  }

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

  .nav-link {
    font-size: 1.2rem;
  }

  /* Hamburger Menu */
  .menu-toggle {
    display: block;
    font-size: 1.5rem;
    color: var(--color-text-main);
    cursor: pointer;
  }

  .lang-toggle.mobile-lang-toggle {
    position: relative;
    top: 0;
    right: 0;
    margin-top: 1rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
    gap: 1rem;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .timeline::before {
    left: 10px;
  }

  .timeline-item {
    padding-left: 35px;
  }

  .timeline-dot {
    left: 3px;
    width: 14px;
    height: 14px;
  }

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

.print-only {
  display: none;
}

/* Print Styles for CV */
/* Configurações específicas para Impressão */
@media print {

  /* 1. Reset de cores e background para economizar tinta e garantir contraste */
  *,
  *::before,
  *::after {
    background: transparent !important;
    color: black !important;
    text-shadow: none !important;
    box-shadow: none !important;
  }

  body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 11pt;
    line-height: 1.4;
    margin: 0;
    padding: 0;
  }

  /* 2. Ocultar elementos desnecessários no papel */
  .navbar,
  .hero-buttons,
  .scroll-indicator,
  .menu-toggle,
  .lang-toggle,
  .timeline-toggle-icon,
  .title-line,
  .about-image img,
  footer {
    display: none !important;
  }

  /* 3. Ajuste do Header (Hero) */
  .hero {
    padding: 0 0 20px 0 !important;
    min-height: auto !important;
    text-align: left !important;
    border-bottom: 2px solid #333 !important;
    margin-bottom: 20px;
  }

  .hero-title {
    font-size: 24pt !important;
    margin: 0;
  }

  .hero-subtitle {
    font-size: 14pt !important;
    margin-top: 5px;
  }

  .cursor {
    display: none !important;
  }

  /* 4. Layout e Seções */
  .container {
    width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .section {
    padding: 10px 0 !important;
    page-break-inside: avoid;
    border: none !important;
  }

  .section-title {
    font-size: 16pt !important;
    text-transform: uppercase;
    border-bottom: 1px solid #ccc !important;
    margin-bottom: 10px;
    padding-bottom: 5px;
  }

  /* 5. Ajuste da Grade de "About" */
  .about-grid {
    display: block !important;
  }

  /* Esconde a foto e os detalhes pessoais da grade about */
  .about-image {
    display: none !important;
  }

  /* Exibe a nova lista de infos no topo em modo duas colunas */
  #print-info-list {
    display: block !important;
    margin-top: 15px;
    margin-bottom: 5px;
  }

  #print-info-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: flex-start;
  }

  #print-info-list li {
    font-size: 11pt;
    border: none !important;
    padding: 0 !important;
  }

  /* 6. Timeline (Experiência e Educação) */
  .timeline::before {
    display: none !important;
  }

  .timeline-content {
    border: none !important;
    padding: 0 !important;
  }

  .timeline-item {
    margin-bottom: 30px !important;
    padding-left: 0 !important;
    page-break-inside: avoid;
  }

  .timeline-dot {
    display: none !important;
  }

  .timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    cursor: default !important;
  }

  .timeline-role {
    font-size: 12pt !important;
    font-weight: bold;
    margin: 0;
  }

  .timeline-date {
    font-weight: bold;
    position: static !important;
    margin-bottom: 2px;
  }

  .timeline-company {
    font-style: italic;
  }

  /* Corrige altura zero/oculta do container expansível */
  .timeline-body {
    display: block !important;
    visibility: visible !important;
    grid-template-rows: 1fr !important;
    max-height: none !important;
    opacity: 1 !important;
    margin-top: 5px !important;
  }

  .timeline-body-inner {
    overflow: visible !important;
    display: block !important;
  }

  .timeline-details {
    margin-top: 5px;
    padding-left: 20px;
  }

  .timeline-details li {
    border: none !important;
  }

  /* 7. Skills e Certificações */
  .skills-grid {
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .tag {
    border: 1px solid #ccc !important;
    padding: 2px 6px !important;
    font-size: 9pt !important;
  }

  /* 8. Links */
  a {
    text-decoration: none !important;
  }

  /* Força a exibição de links importantes */
  #about-info-list a::after {
    content: " (" attr(href) ")";
    font-size: 9pt;
  }

  /* Garante que elementos animados via JS (ex: .reveal) apareçam ao imprimir */
  .reveal,
  .reveal-left,
  .reveal-right {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}