/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ tokens */
:root {
  --bg: #0a0e14;
  --bg-alt: #0d1420;
  --surface: #111826;
  --surface-border: #1f2937;
  --text: #e6e9ef;
  --text-muted: #9aa4b2;
  --accent: #2dd4bf;
  --accent-soft: rgba(45, 212, 191, 0.12);
  --accent-border: rgba(45, 212, 191, 0.35);
  --radius: 14px;
  --max-width: 1040px;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.045) 1px, transparent 0);
  background-size: 28px 28px;
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

section {
  scroll-margin-top: 90px;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin: 0 0 10px;
}

h1, h2, h3 {
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
}

h2 {
  font-size: clamp(24px, 3.2vw, 32px);
  margin-bottom: 28px;
}

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

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ banner (link para o site de 2023) */

.legacy-banner {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--surface-border);
  text-align: center;
  padding: 10px 16px;
  font-size: 14px;
}

.legacy-banner a {
  font-weight: 600;
}

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ header / nav */

header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--surface-border);
}

nav.wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text);
  font-size: 16px;
}

.brand span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a,
.nav-links button {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
}

.nav-links a:hover,
.nav-links button:hover {
  color: var(--text);
  background: var(--surface);
  text-decoration: none;
}

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

.lang-toggle-btn,
.nav-toggle {
  background: none;
  border: 1px solid var(--surface-border);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}

.legacy-link {
  border: 1px solid var(--surface-border);
  font-family: var(--font-mono);
  font-size: 13px !important;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ hero */

.hero {
  padding: 96px 0 72px;
}

.hero h1 {
  font-size: clamp(34px, 6vw, 56px);
}

.hero .subtitle {
  font-size: clamp(17px, 2.2vw, 20px);
  color: var(--text-muted);
  max-width: 620px;
  margin: 18px 0 8px;
}

.hero .meta {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
  margin: 0 0 32px;
}

.hero .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #06201c;
}

.btn-primary:hover {
  background: #26c4af;
}

.btn-ghost {
  border-color: var(--surface-border);
  color: var(--text);
}

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

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sections gerais */

.section {
  padding: 64px 0;
  border-top: 1px solid var(--surface-border);
}

.section-intro {
  color: var(--text-muted);
  max-width: 640px;
  margin: -14px 0 32px;
}

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ tags / pills */

.tag-group {
  margin-bottom: 26px;
}

.tag-group h3 {
  font-size: 14px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 12px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.tags li {
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 100px;
}

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cards de projeto */

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
  border-color: var(--accent-border);
  transform: translateY(-2px);
}

.card.featured {
  border-color: var(--accent-border);
  background: linear-gradient(180deg, var(--accent-soft), var(--surface) 60%);
}

.card.wide {
  grid-column: 1 / -1;
}

.card .card-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 8px;
}

.card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.card p {
  font-size: 14px;
  flex-grow: 1;
  margin: 0 0 14px;
}

.card .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.card .chips span {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  border: 1px solid var(--surface-border);
  border-radius: 6px;
  padding: 2px 7px;
}

.card .card-link {
  font-weight: 600;
  font-size: 14px;
}

.card .card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ experiência / timeline */

.timeline {
  border-left: 2px solid var(--surface-border);
  padding-left: 24px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.timeline-item {
  position: relative;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -30px;
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.timeline-item .role {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 2px;
}

.timeline-item .org {
  color: var(--text);
}

.timeline-item .period {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  margin: 4px 0 10px;
}

.timeline-item ul {
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
  font-size: 14px;
}

.timeline-item li {
  margin-bottom: 4px;
}

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ formação */

.edu-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.edu-item {
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 18px 20px;
  background: var(--surface);
}

.edu-item .degree {
  font-weight: 700;
  font-size: 15px;
}

.edu-item .org {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 2px;
}

.edu-item .status {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  margin-top: 6px;
  display: inline-block;
}

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ contato */

.contact-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.contact-card {
  flex: 1 1 220px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.contact-card .label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  display: block;
  margin-bottom: 6px;
}

.contact-card a {
  font-weight: 600;
  font-size: 15px;
}

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ footer */

footer {
  border-top: 1px solid var(--surface-border);
  padding: 32px 0 48px;
  text-align: center;
}

footer p {
  font-size: 13px;
  margin: 6px 0;
}

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ idioma (EN/PT) */

.lang-pt {
  display: none;
}

html[data-lang="pt"] .lang-en {
  display: none;
}

html[data-lang="pt"] .lang-pt {
  display: revert;
}

/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ responsivo */

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--surface-border);
    flex-direction: column;
    align-items: stretch;
    padding: 8px;
    gap: 2px;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a,
  .nav-links button {
    width: 100%;
    text-align: left;
  }

  .hero {
    padding: 56px 0 48px;
  }

  .timeline {
    padding-left: 18px;
  }

  .timeline-item::before {
    left: -24px;
  }
}