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

[hidden] { display: none !important; }

:root {
  --bg-primary:     #0F172A;
  --bg-surface:     #1E293B;
  --bg-subtle:      #334155;
  --text-primary:   #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted:     #64748B;
  --accent:         #06B6D4;
  --accent-hover:   #0891B2;
  --highlight:      #8B5CF6;
  --success:        #10B981;
  --font-display:   'Sora', sans-serif;
  --font-body:      'IBM Plex Sans', sans-serif;
  --font-mono:      'JetBrains Mono', monospace;
  --radius:         12px;
  --transition:     300ms cubic-bezier(0.16, 1, 0.3, 1);
  --navbar-h:       68px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: clamp(1rem, 2vw, 1.125rem);
  overflow-x: hidden;
}

.skip-to-content {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  background: var(--accent);
  color: var(--bg-primary);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: top var(--transition);
}

.skip-to-content:focus {
  top: 1rem;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background-color: rgba(30, 41, 59, 0.4);
}

.section-header {
  margin-bottom: 3rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent);
  margin-bottom: 0;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 600;
  line-height: 1.2;
}

h3 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 500;
  line-height: 1.3;
}

p {
  color: var(--text-secondary);
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
  min-height: 44px;
}

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

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

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--bg-subtle);
}

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

.btn-full {
  width: 100%;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent);
  border-radius: 9999px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid rgba(6, 182, 212, 0.15);
}

.badge-success {
  display: inline-flex;
  align-items: center;
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border-radius: 9999px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid rgba(16, 185, 129, 0.15);
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background-color var(--transition), backdrop-filter var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background-color: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: rgba(51, 65, 85, 0.4);
}

.navbar-inner {
  display: flex;
  align-items: center;
  height: var(--navbar-h);
  gap: 1.5rem;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.nav-links {
  display: none;
  gap: 2rem;
  margin-left: auto;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
  transform: scaleX(0);
  transition: transform var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.nav-cta {
  display: none;
  margin-left: auto;
}

.hamburger {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  border-radius: 8px;
  transition: background-color var(--transition);
}

.hamburger:hover {
  background-color: var(--bg-surface);
}

.icon-close {
  display: none;
}

.navbar.menu-open .icon-hamburger {
  display: none;
}

.navbar.menu-open .icon-close {
  display: block;
}

.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  z-index: 99;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--navbar-h);
  background-image:
    linear-gradient(rgba(6, 182, 212, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6, 182, 212, 0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(139, 92, 246, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  padding-top: 2rem;
  padding-bottom: 4rem;
}

.hero-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.hero-description {
  margin-top: 1.25rem;
  max-width: 52ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  animation: bounce 2.4s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.4; }
  50% { transform: translateX(-50%) translateY(7px); opacity: 0.9; }
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.code-block {
  background: var(--bg-surface);
  border: 1px solid rgba(51, 65, 85, 0.6);
  border-radius: var(--radius);
  overflow: hidden;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(6, 182, 212, 0.05);
}

.code-block-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.25rem;
  background: rgba(15, 23, 42, 0.6);
  border-bottom: 1px solid rgba(51, 65, 85, 0.4);
}

.code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red    { background: #FF5F57; }
.dot-yellow { background: #FEBC2E; }
.dot-green  { background: #28C840; }

.code-filename {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-left: 0.5rem;
}

.code-content {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.8;
  overflow-x: auto;
  background: transparent;
  white-space: pre;
}

.code-kw  { color: #06B6D4; }
.code-var { color: #F1F5F9; }
.code-key { color: #94A3B8; }
.code-str { color: #8B5CF6; }

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 400ms cubic-bezier(0.16, 1, 0.3, 1), transform 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

.sobre-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-top: 2.5rem;
}

.sobre-text {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.quick-facts {
  background: var(--bg-surface);
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: var(--radius);
  padding: 2rem;
}

.quick-facts h3 {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.quick-facts ul {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.quick-facts li {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.quick-facts svg {
  color: var(--accent);
  flex-shrink: 0;
}

.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline-item {
  display: flex;
  gap: 1.5rem;
  padding-bottom: 2.5rem;
  position: relative;
}

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

.timeline-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--accent);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.4);
  flex-shrink: 0;
  margin-top: 0.5rem;
  position: relative;
  z-index: 1;
}

.timeline-item:not(:last-child) .timeline-dot::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 100%;
  width: 1.5px;
  height: calc(100% + 2.5rem - 14px);
  background: linear-gradient(180deg, rgba(6, 182, 212, 0.4) 0%, rgba(6, 182, 212, 0.05) 100%);
}

.timeline-card {
  flex: 1;
  background: var(--bg-surface);
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

.timeline-card:hover {
  box-shadow: 0 0 24px rgba(6, 182, 212, 0.07);
  border-color: rgba(6, 182, 212, 0.2);
  transform: scale(1.01);
}

.company-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.15);
  border-radius: 9999px;
  padding: 0.2rem 0.7rem;
  margin-bottom: 0.875rem;
}

.timeline-header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 0.875rem;
}

.timeline-header h3 {
  font-size: 1.125rem;
}

.timeline-header time {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.timeline-card > p {
  font-size: 0.9375rem;
  margin-bottom: 1rem;
}


.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.skill-category {
  background: var(--bg-surface);
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.skill-category:hover {
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.06);
  border-color: rgba(6, 182, 212, 0.15);
}

.skill-category-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  color: var(--accent);
}

.skill-category-header h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.complementar {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.skill-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(51, 65, 85, 0.3);
}

.skill-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.skill-name {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.skill-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
}

.skill-badge.core {
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent);
  border: 1px solid rgba(6, 182, 212, 0.15);
}

.skill-badge.proficient {
  background: rgba(139, 92, 246, 0.1);
  color: var(--highlight);
  border: 1px solid rgba(139, 92, 246, 0.15);
}

.cases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.case-card {
  background: var(--bg-surface);
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

.case-card:hover {
  box-shadow: 0 0 24px rgba(6, 182, 212, 0.08);
  border-color: rgba(6, 182, 212, 0.2);
  transform: scale(1.02);
}

.case-card h3 {
  font-size: 1.125rem;
}

.case-card p {
  font-size: 0.9375rem;
  flex: 1;
}

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


.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.service-card {
  background: var(--bg-surface);
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

.service-card:hover {
  box-shadow: 0 0 24px rgba(6, 182, 212, 0.08);
  border-color: rgba(6, 182, 212, 0.2);
  transform: scale(1.02);
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(6, 182, 212, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.service-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 0.625rem;
}

.service-card p {
  font-size: 0.9375rem;
}

.education-timeline {
  margin-top: 2.5rem;
  padding-left: 1.75rem;
  border-left: 1.5px solid rgba(6, 182, 212, 0.2);
}

.education-item {
  position: relative;
  display: flex;
  gap: 1.25rem;
  padding-bottom: 2.25rem;
}

.education-item:last-child {
  padding-bottom: 0;
}

.education-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--accent);
  flex-shrink: 0;
  margin-top: 0.3rem;
  position: absolute;
  left: -2.375rem;
}

.education-content {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.education-content h3 {
  font-size: 1rem;
  font-weight: 500;
}

.education-institution {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent);
}

.education-content time {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.contato-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2.5rem;
  max-width: 560px;
}

.contato-link {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--bg-surface);
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.contato-link:hover {
  border-color: rgba(6, 182, 212, 0.35);
  box-shadow: 0 0 28px rgba(6, 182, 212, 0.07);
  transform: translateX(4px);
}

.contato-link-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(6, 182, 212, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.contato-link-text {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  flex: 1;
}

.contato-link-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.contato-link-value {
  font-size: 0.9375rem;
  color: var(--text-primary);
}

.contato-link-arrow {
  color: var(--text-muted);
  flex-shrink: 0;
  transition: color var(--transition), transform var(--transition);
}

.contato-link:hover .contato-link-arrow {
  color: var(--accent);
  transform: translate(2px, -2px);
}


.footer {
  padding: 2.5rem 0;
  border-top: 1px solid rgba(51, 65, 85, 0.3);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.footer-logo {
  font-size: 1.25rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.9375rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--text-secondary);
}

.footer-socials {
  display: flex;
  gap: 1rem;
}

.footer-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  color: var(--text-muted);
  transition: color var(--transition), background-color var(--transition);
}

.footer-socials a:hover {
  color: var(--accent);
  background-color: rgba(6, 182, 212, 0.1);
}

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

@media (min-width: 768px) {
  .section {
    padding: 5rem 0;
  }

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

  .hero-label {
    font-size: 0.9375rem;
  }

  .sobre-grid {
    grid-template-columns: 3fr 2fr;
    align-items: start;
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cases-grid .case-card:last-child {
    grid-column: span 1;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

@media (min-width: 1024px) {
  .section {
    padding: 6rem 0;
  }

  .nav-links {
    display: flex;
  }

  .nav-cta {
    display: inline-flex;
  }

  .hamburger {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 3fr 2fr;
    gap: 5rem;
    padding-top: 3rem;
    padding-bottom: 5rem;
  }

  .sobre-grid {
    grid-template-columns: 3fr 2fr;
    gap: 5rem;
  }

  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .cases-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .cases-grid .case-card:last-child {
    grid-column: span 1;
  }

  .timeline-header {
    flex-direction: row;
    justify-content: space-between;
    align-items: baseline;
  }

  .education-timeline {
    display: flex;
    flex-direction: row;
    padding-left: 0;
    border-left: none;
    border-top: 1.5px solid rgba(6, 182, 212, 0.2);
    gap: 0;
    padding-top: 2rem;
  }

  .education-item {
    flex: 1;
    flex-direction: column;
    padding-bottom: 0;
    padding-right: 2rem;
    gap: 1rem;
  }

  .education-item:last-child {
    padding-right: 0;
  }

  .education-dot {
    position: absolute;
    left: 0;
    top: -2.375rem;
  }

}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}