:root {
  --bg-sand: #F4F1EA;
  --surface-warm: #EAE5DA;
  --card-bg: #FAF8F4;
  --ink-dark: #18181B;
  --ink-muted: #57534E;
  --border-subtle: #D6CFC2;
  --accent-terracotta: #B85032;
  --accent-soft: rgba(184, 80, 50, 0.08);
  --tag-green-bg: #E3ECE5;
  --tag-green-ink: #275338;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-sand);
  color: var(--ink-dark);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
}

.mb-20 {
  margin-bottom: 20px;
}

/* ================= HEADER & NAV ================= */
header {
  padding-top: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  gap: 12px;
}

.logo {
  font-weight: 700;
  color: var(--ink-dark);
  text-decoration: none;
  white-space: nowrap;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-controls a {
  text-decoration: none;
  color: var(--ink-muted);
  position: relative;
  padding-bottom: 3px;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.nav-controls a:hover,
.nav-controls a.active-link {
  color: var(--ink-dark);
  font-weight: 700;
}

.nav-controls a.active-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-terracotta);
}

/* ================= DROPDOWN DE IDIOMAS ================= */
.lang-dropdown {
  position: relative;
}

.lang-current {
  background-color: var(--surface-warm);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--ink-dark);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.lang-current:hover {
  border-color: var(--ink-dark);
  background-color: var(--card-bg);
}

.lang-current .chevron {
  font-size: 0.7rem;
  color: var(--ink-muted);
}

.lang-menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  background-color: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  list-style: none;
  min-width: 155px;
  padding: 4px;
  box-shadow: 0 10px 25px rgba(24, 24, 27, 0.08);
  z-index: 100;
}

.lang-menu.open {
  display: block;
  animation: pageFadeIn 0.18s ease forwards;
}

.lang-menu li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 8px 10px;
  border-radius: 5px;
  cursor: pointer;
  color: var(--ink-dark);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background-color 0.15s ease;
}

.lang-menu li:hover {
  background-color: var(--surface-warm);
}

.lang-menu li.active {
  background-color: var(--accent-soft);
  color: var(--accent-terracotta);
  font-weight: 700;
}

/* ================= TRANSIÇÃO DE PÁGINAS ================= */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.page {
  display: none;
  opacity: 0;
  transform: translateY(10px);
  padding: 44px 0;
}

.page.active {
  display: block;
  animation: pageFadeIn 0.35s ease forwards;
}

@keyframes pageFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-terracotta);
  margin-bottom: 12px;
}

.section-sub {
  font-size: 0.88rem;
  color: var(--ink-muted);
}

/* ================= PÁGINA 1: HERO ================= */
.hero-grid {
  width: 100%;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 44px;
  align-items: center;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-text {
  display: flex;
  flex-direction: column;
}

.greeting {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--ink-muted);
  margin-bottom: 6px;
}

.hero-name {
  font-size: 2.9rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.08;
  color: var(--ink-dark);
  margin-bottom: 12px;
}

.hero-role {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.96rem;
  color: var(--accent-terracotta);
  margin-bottom: 18px;
}

.hero-bio {
  font-size: 0.96rem;
  color: var(--ink-muted);
  margin-bottom: 22px;
  max-width: 500px;
}

.terminal-line {
  font-family: var(--font-mono);
  border-left: 2px solid var(--accent-terracotta);
  padding-left: 14px;
  font-size: 0.82rem;
  color: var(--ink-dark);
  margin-bottom: 24px;
}

.terminal-line .prompt {
  font-weight: 700;
  color: var(--accent-terracotta);
  margin-right: 6px;
}

.actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.btn-primary, .btn-secondary {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  font-weight: 500;
  padding: 11px 18px;
  border-radius: 6px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-primary {
  background-color: var(--ink-dark);
  color: var(--bg-sand);
  border: 1px solid var(--ink-dark);
}

.btn-primary:hover {
  background-color: var(--accent-terracotta);
  border-color: var(--accent-terracotta);
  color: #FFFFFF;
}

.btn-secondary {
  background-color: transparent;
  color: var(--ink-dark);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  border-color: var(--ink-dark);
  background-color: var(--surface-warm);
}

.hero-socials {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-socials a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.hero-socials a svg {
  width: 14px;
  height: 14px;
}

.hero-socials a:hover {
  color: var(--accent-terracotta);
}

.hero-photo-column {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.hero-photo {
  width: 100%;
  max-width: 270px;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-muted);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #2E7D32;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ================= SEÇÕES EXTRAS DA PÁGINA INICIAL ================= */
.home-section {
  padding: 36px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.home-section.no-border {
  border-bottom: none;
  padding-bottom: 0;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.pillar-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 18px;
}

.pillar-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-terracotta);
  margin-bottom: 6px;
}

.pillar-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.pillar-card p {
  font-size: 0.85rem;
  color: var(--ink-muted);
  line-height: 1.5;
}

.home-section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 16px;
  gap: 12px;
}

.home-section-head .section-label {
  margin-bottom: 0;
}

.inline-more {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--ink-dark);
  transition: color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

.inline-more:hover {
  color: var(--accent-terracotta);
  border-color: var(--accent-terracotta);
}

.featured-mini-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.mini-proj-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 18px;
  text-decoration: none;
  color: var(--ink-dark);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.mini-proj-card:hover {
  border-color: var(--ink-dark);
  transform: translateY(-2px);
}

.mini-top {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-terracotta);
  font-weight: 700;
}

.mini-proj-card h4 {
  font-size: 1rem;
  font-weight: 700;
}

.mini-proj-card p {
  font-size: 0.84rem;
  color: var(--ink-muted);
  line-height: 1.5;
}

/* ================= PÁGINA 2: PROJETOS (CARDS INTERATIVOS) ================= */
.page-header {
  margin-bottom: 28px;
}

.page-header h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}

.page-sub {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-muted);
}

.projects-cards-stack {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.rich-project-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 24px;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.rich-project-card:hover {
  border-color: var(--ink-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(24, 24, 27, 0.05);
}

.card-top-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  gap: 12px;
}

.card-identity {
  display: flex;
  align-items: center;
  gap: 14px;
}

.card-icon-box {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background-color: var(--accent-soft);
  border: 1px solid rgba(184, 80, 50, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-terracotta);
  flex-shrink: 0;
}

.card-icon-box svg {
  width: 20px;
  height: 20px;
}

.card-identity h3 {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink-dark);
}

.card-subtitle {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  margin-top: 2px;
}

.card-ext-arrow {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-terracotta);
  transition: background-color 0.2s ease;
  flex-shrink: 0;
}

.card-ext-arrow:hover {
  background-color: var(--accent-soft);
}

.project-preview-window {
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 18px;
  background-color: var(--bg-sand);
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background-color: var(--surface-warm);
  border-bottom: 1px solid var(--border-subtle);
}

.b-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--border-subtle);
}

.b-url {
  margin-left: 6px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-muted);
}

.project-screenshot {
  width: 100%;
  max-height: 340px;
  object-fit: cover;
  object-position: top;
  display: block;
}

.card-body-text {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--ink-dark);
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 18px;
}

.card-meta-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--ink-muted);
  background-color: var(--bg-sand);
  border: 1px solid var(--border-subtle);
  padding: 4px 12px;
  border-radius: 999px;
  text-decoration: none;
}

.link-pill {
  color: var(--ink-dark);
  font-weight: 500;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.link-pill:hover {
  border-color: var(--ink-dark);
  background-color: var(--surface-warm);
}

.dot-live {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #2E7D32;
}

.card-callout {
  background-color: var(--accent-soft);
  border: 1px solid rgba(184, 80, 50, 0.18);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-dark);
  margin-bottom: 16px;
}

.card-expandable {
  display: none;
  border-top: 1px dashed var(--border-subtle);
  padding-top: 16px;
  margin-bottom: 16px;
}

.rich-project-card[data-expanded="true"] .card-expandable {
  display: block;
  animation: pageFadeIn 0.25s ease forwards;
}

.expand-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.expand-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-terracotta);
  margin-bottom: 4px;
}

.expand-grid p {
  font-size: 0.84rem;
  color: var(--ink-muted);
}

.card-footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 999px;
}

.tag-green {
  background-color: var(--tag-green-bg);
  color: var(--tag-green-ink);
}

.tag-accent {
  background-color: var(--accent-soft);
  color: var(--accent-terracotta);
}

.expand-toggle-hint {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--ink-muted);
}

/* ================= PÁGINA 3: SOBRE ================= */
.editorial-section {
  padding-bottom: 40px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-subtle);
}

.editorial-section.no-border {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.about-headline {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.about-narrative {
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 0.96rem;
  color: var(--ink-muted);
}

.about-narrative strong {
  color: var(--ink-dark);
}

.quick-facts {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px dashed var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-muted);
}

.quick-facts strong {
  color: var(--ink-dark);
}

.social-links-row {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.social-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background-color: var(--surface-warm);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  text-decoration: none;
  color: var(--ink-dark);
  transition: all 0.2s ease;
}

.social-pill svg {
  width: 16px;
  height: 16px;
  color: var(--accent-terracotta);
  flex-shrink: 0;
  transition: color 0.2s ease;
}

.social-pill:hover {
  background-color: var(--ink-dark);
  border-color: var(--ink-dark);
  color: var(--bg-sand);
  transform: translateY(-2px);
}

.social-pill:hover svg {
  color: var(--bg-sand);
}

/* ================= GITHUB CONTRIBUTION HEATMAP CARD (MOBILE-FRIENDLY) ================= */
.github-activity-card {
  margin-top: 24px;
  background-color: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 18px 20px;
  width: 100%;
}

.gh-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  gap: 8px;
  flex-wrap: wrap;
}

.gh-title-group {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink-dark);
}

.gh-profile-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-terracotta);
  text-decoration: none;
  font-weight: 500;
}

.gh-profile-link:hover {
  text-decoration: underline;
}

.gh-heatmap-scroll {
  width: 100%;
  overflow: hidden;
}

.gh-heatmap-grid {
  display: grid;
  grid-template-rows: repeat(6, 1fr);
  grid-template-columns: repeat(18, 1fr);
  grid-auto-flow: column;
  gap: 4px;
  width: 100%;
}

.gh-cell {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 3px;
  background-color: var(--surface-warm);
  transition: transform 0.15s ease;
}

.gh-cell:hover {
  transform: scale(1.18);
}

.gh-cell.lv-0 {
  background-color: var(--surface-warm);
}

.gh-cell.lv-1 {
  background-color: #9BE9A8;
}

.gh-cell.lv-2 {
  background-color: #40C463;
}

.gh-cell.lv-3 {
  background-color: #216E39;
}

.gh-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  gap: 10px;
  flex-wrap: wrap;
}

.gh-status-text {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
}

.gh-legend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--ink-muted);
}

.gh-legend .gh-cell {
  width: 10px;
  height: 10px;
}

/* Linha do Tempo */
.timeline {
  position: relative;
  padding-left: 28px;
  margin-left: 6px;
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background-color: var(--border-subtle);
}

.timeline-progress {
  position: absolute;
  left: 0;
  top: 6px;
  width: 2px;
  height: 0;
  background-color: var(--accent-terracotta);
  transition: height 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

.timeline.animate .timeline-progress {
  height: calc(100% - 12px);
}

.timeline-item {
  position: relative;
  opacity: 0;
  transform: translateX(-12px);
  transition: opacity 0.55s ease, transform 0.55s ease;
  transition-delay: var(--delay, 0s);
}

.timeline.animate .timeline-item {
  opacity: 1;
  transform: translateX(0);
}

.timeline-dot {
  position: absolute;
  left: -33px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--bg-sand);
  border: 2px solid var(--accent-terracotta);
}

.timeline-dot.active-pulse {
  background-color: var(--accent-terracotta);
  box-shadow: 0 0 0 4px rgba(184, 80, 50, 0.2);
}

.timeline-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--accent-terracotta);
  margin-bottom: 4px;
}

.timeline-item h3 {
  font-size: 1.06rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.timeline-item p {
  font-size: 0.92rem;
  color: var(--ink-muted);
}

/* ================= CERTIFICADOS ================= */
.section-head-split {
  margin-bottom: 20px;
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.cert-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 20px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.cert-card:hover {
  border-color: var(--ink-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(24, 24, 27, 0.05);
}

.cert-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cert-icon {
  font-size: 1.35rem;
}

.cert-badge-type {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  background-color: var(--surface-warm);
  color: var(--ink-muted);
}

.cert-issuer {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-terracotta);
  margin-bottom: 4px;
}

.cert-info h4 {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 8px;
  color: var(--ink-dark);
}

.cert-mini-desc {
  font-size: 0.83rem;
  color: var(--ink-muted);
  line-height: 1.5;
  margin-bottom: 12px;
}

.cert-view-cta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--ink-dark);
  border-bottom: 1px dashed var(--ink-dark);
}

.cert-card:hover .cert-view-cta {
  color: var(--accent-terracotta);
  border-bottom-color: var(--accent-terracotta);
}

/* Modal Popup de Certificado (Sem Download) */
.cert-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(24, 24, 27, 0.78);
  backdrop-filter: blur(4px);
  z-index: 999;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.cert-modal-overlay.open {
  display: flex;
  animation: pageFadeIn 0.2s ease forwards;
}

.cert-modal-box {
  background-color: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  width: 100%;
  max-width: 780px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
}

.cert-modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.cert-modal-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  background-color: var(--accent-soft);
  color: var(--accent-terracotta);
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 6px;
}

.cert-modal-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.25;
}

.cert-modal-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-muted);
  margin-top: 2px;
}

.cert-modal-close {
  background: var(--surface-warm);
  border: 1px solid var(--border-subtle);
  width: 34px;
  height: 34px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 700;
  color: var(--ink-dark);
  flex-shrink: 0;
}

.cert-modal-close:hover {
  background-color: var(--ink-dark);
  color: var(--bg-sand);
}

.cert-modal-body {
  padding: 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  background-color: var(--bg-sand);
}

.cert-protected-frame {
  position: relative;
  width: 100%;
  display: flex;
  justify-content: center;
  background-color: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 10px;
}

.cert-protected-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
}

.cert-protected-frame img {
  max-width: 100%;
  max-height: 54vh;
  border-radius: 4px;
  pointer-events: none;
  display: block;
}

.cert-detail-card {
  width: 100%;
  background-color: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 18px;
}

.cert-detail-card p {
  font-size: 0.9rem;
  color: var(--ink-dark);
  margin-bottom: 12px;
  line-height: 1.6;
}

.cert-topics-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.cert-topics-list li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background-color: var(--surface-warm);
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: 999px;
  color: var(--ink-dark);
}

.cert-verify-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  background-color: var(--ink-dark);
  color: var(--bg-sand);
  padding: 10px 16px;
  border-radius: 6px;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.cert-verify-btn:hover {
  background-color: var(--accent-terracotta);
  color: #FFFFFF;
}

/* Setup Visual */
.setup-showcase {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 32px;
  align-items: center;
  background-color: var(--surface-warm);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 24px;
}

.macbook-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.mac-screen {
  width: 210px;
  height: 132px;
  background-color: #18181B;
  border: 2px solid #27272A;
  border-radius: 8px 8px 2px 2px;
  padding: 12px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.mac-notch {
  width: 34px;
  height: 5px;
  background-color: #09090B;
  border-radius: 0 0 4px 4px;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.mac-code-lines {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: #E4E4E7;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.code-accent {
  color: #E07A5F;
  font-weight: 700;
}

.code-muted {
  color: #71717A;
}

.mac-base {
  width: 236px;
  height: 9px;
  background: linear-gradient(to bottom, #D4D4D8, #A1A1AA);
  border-radius: 0 0 8px 8px;
}

.setup-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.setup-title-row h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.chip-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  background-color: var(--ink-dark);
  color: var(--bg-sand);
  padding: 3px 8px;
  border-radius: 4px;
}

.setup-sub {
  font-size: 0.88rem;
  color: var(--ink-muted);
  margin-bottom: 16px;
}

.specs-pills {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.spec-pill {
  background-color: var(--bg-sand);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
}

.spec-k {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-terracotta);
  font-weight: 700;
}

.spec-v {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-dark);
}

/* ================= TECH STACK ================= */
.stack-groups-container {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.stack-category-box {
  background-color: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 20px;
}

.stack-cat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px dashed var(--border-subtle);
}

.stack-cat-header h4 {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--ink-dark);
}

.stack-cat-header span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-terracotta);
}

.stack-pills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.stack-row-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  background-color: var(--bg-sand);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.stack-row-item:hover {
  border-color: var(--ink-dark);
  transform: translateY(-1px);
}

.stack-logo-wrap {
  width: 34px;
  height: 34px;
  border-radius: 7px;
  background-color: var(--card-bg);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stack-logo-wrap svg {
  width: 20px;
  height: 20px;
}

.stack-row-text strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.83rem;
  color: var(--ink-dark);
  line-height: 1.2;
}

.stack-row-text small {
  display: block;
  font-size: 0.76rem;
  color: var(--ink-muted);
  margin-top: 2px;
  line-height: 1.35;
}

/* Footer */
footer {
  padding: 28px 0;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-muted);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

/* ================= RESPONSIVO TABLET (<= 900px) ================= */
@media (max-width: 900px) {
  .container {
    padding: 0 20px;
  }
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 28px;
  }
  .hero-name {
    font-size: 2.45rem;
  }
  .pillars-grid,
  .featured-mini-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .setup-showcase {
    grid-template-columns: 210px 1fr;
    gap: 22px;
    padding: 20px;
  }
}

/* ================= RESPONSIVO MOBILE (<= 640px) ================= */
@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
  header {
    padding-top: 20px;
    padding-bottom: 16px;
  }
  nav {
    font-size: 0.82rem;
  }
  .nav-controls {
    gap: 14px;
  }
  .page {
    padding: 28px 0;
  }

  /* Ordem Mobile: 1. Texto -> 2. Foto -> 3. Botões */
  .hero-grid {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 22px;
    padding-bottom: 32px;
  }
  .hero-text {
    display: contents;
  }
  .hero-copy-block {
    order: 1;
    width: 100%;
  }
  .hero-photo-column {
    order: 2;
    width: 100%;
  }
  .hero-cta-block {
    order: 3;
    width: 100%;
  }
  .hero-photo {
    max-width: 210px;
  }
  .terminal-line {
    margin-bottom: 0;
  }
  .hero-name {
    font-size: 2.05rem;
  }
  .hero-role {
    font-size: 0.88rem;
  }
  .actions {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary,
  .btn-secondary {
    width: 100%;
  }
  .pillars-grid,
  .featured-mini-grid,
  .certs-grid,
  .setup-showcase,
  .expand-grid,
  .stack-pills-grid,
  .specs-pills {
    grid-template-columns: 1fr;
  }
  .rich-project-card,
  .stack-category-box {
    padding: 18px;
  }

  /* Heatmap GitHub 100% responsivo no mobile */
  .github-activity-card {
    padding: 14px;
  }
  .gh-heatmap-grid {
    gap: 3px;
  }
  .gh-cell {
    border-radius: 2px;
  }
  .gh-card-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .project-screenshot {
    max-height: 210px;
  }
  .page-header h2 {
    font-size: 1.65rem;
  }
  .about-headline {
    font-size: 1.45rem;
  }
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}