/* =========================================================
   Design tokens — troque estes valores para "marcas" novas
   ========================================================= */
:root {
  --color-primary: #155e63;
  --color-primary-strong: #0d3d40;
  --color-accent: #e07a3f;

  /* Paleta neutra no espírito shadcn/ui (zinc) — trocada da base creme anterior */
  --bg: #ffffff;
  --bg-alt: #fafafa;
  --surface: #ffffff;
  --surface-border: #e4e4e7;
  --text: #09090b;
  --text-muted: #71717a;
  --text-on-primary: #f8fafc;
  --ring: var(--color-primary);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);

  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --container-w: 1080px;
}

:root[data-theme="dark"] {
  --bg: #09090b;
  --bg-alt: #111113;
  --surface: #18181b;
  --surface-border: #27272a;
  --text: #fafafa;
  --text-muted: #a1a1aa;
  --text-on-primary: #f8fafc;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.45), 0 2px 4px -2px rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #09090b;
    --bg-alt: #111113;
    --surface: #18181b;
    --surface-border: #27272a;
    --text: #fafafa;
    --text-muted: #a1a1aa;
    --text-on-primary: #f8fafc;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.45), 0 2px 4px -2px rgba(0, 0, 0, 0.4);
  }
}

/* =========================================================
   Reset
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, p { margin: 0; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: var(--text-on-primary);
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 200;
}
.skip-link:focus { left: 0; }

.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* =========================================================
   Header / Nav
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--surface-border);
}
.nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-block: 0.85rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-weight: 700;
  color: var(--text);
  margin-right: auto;
}
.brand-mark {
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--color-primary);
  color: var(--text-on-primary);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}
.brand-mark img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--surface);
  padding: 3px;
}
.theme-toggle {
  position: relative;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--surface-border);
  background: var(--surface);
  cursor: pointer;
  color: var(--text);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.theme-toggle:hover { border-color: var(--color-primary); }
.theme-toggle .icon {
  position: absolute;
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  transition: opacity 0.25s ease, transform 0.35s ease;
}
.theme-toggle .icon-moon { opacity: 0; transform: rotate(-90deg) scale(0.5); }
.theme-toggle .icon-sun { opacity: 1; transform: rotate(0deg) scale(1); }
:root[data-theme="dark"] .theme-toggle .icon-sun { opacity: 0; transform: rotate(90deg) scale(0.5); }
:root[data-theme="dark"] .theme-toggle .icon-moon { opacity: 1; transform: rotate(0deg) scale(1); }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  padding-block: clamp(3rem, 7vw, 6rem);
  background: var(--bg);
  border-bottom: 1px solid var(--surface-border);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  align-items: center;
  gap: 2rem;
}
.eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height: 1.1;
  margin-block: 0.5rem 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.hero-tagline {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 44ch;
}
.hero-location {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.hero-actions {
  display: flex;
  gap: 0.9rem;
  margin-top: 1.75rem;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  height: 2.5rem;
  padding-inline: 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.875rem;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--text-on-primary);
  border: 1px solid transparent;
}
.btn-primary:hover { background: var(--color-primary-strong); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--surface-border);
}
.btn-ghost:hover { background: var(--bg-alt); border-color: var(--color-primary); transform: translateY(-2px); }

.hero-avatar {
  position: relative;
  overflow: hidden;
  justify-self: center;
  width: clamp(140px, 20vw, 220px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: linear-gradient(160deg, var(--color-primary), var(--color-primary-strong));
  display: grid;
  place-items: center;
  border: 1px solid var(--surface-border);
  box-shadow: var(--shadow-sm);
}
.hero-avatar img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-avatar span {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  color: var(--text-on-primary);
}

/* =========================================================
   Sections
   ========================================================= */
.section { padding-block: clamp(3rem, 6vw, 5rem); scroll-margin-top: 76px; }
.hero { scroll-margin-top: 76px; }
.section-alt { background: var(--bg-alt); }

/* Aparece suavemente ao entrar na tela; sem sobressalto para quem prefere menos movimento */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* Feedback tátil de clique nos elementos interativos */
.btn:active,
.theme-toggle:active,
.timeline-expand:active,
.contact-icon-link:active,
.github-toggle:active,
.skill-group-header:active {
  transform: scale(0.96);
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 4px var(--bg-alt), 0 0 0 4px color-mix(in srgb, var(--color-primary) 45%, transparent); }
  70% { box-shadow: 0 0 0 4px var(--bg-alt), 0 0 0 11px color-mix(in srgb, var(--color-primary) 0%, transparent); }
  100% { box-shadow: 0 0 0 4px var(--bg-alt), 0 0 0 4px color-mix(in srgb, var(--color-primary) 0%, transparent); }
}
/* Destaca o marcador do item mais recente (o primeiro, já que a timeline
   está em ordem do mais novo pro mais antigo) com um pulso sutil. */
.timeline-item:first-child::before { animation: pulse-ring 2.2s ease-out 1.2s infinite; }

@keyframes avatar-in {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}
.hero-avatar { animation: avatar-in 0.6s cubic-bezier(0.16, 1, 0.3, 1) both; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .timeline-item:first-child::before { animation: none; }
  .hero-avatar { animation: none; }
}

/* Foco visível e consistente para navegação por teclado (halo, estilo shadcn/ui) */
a:focus-visible,
button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--ring);
  border-radius: var(--radius-sm);
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}
.section-intro {
  color: var(--text-muted);
  max-width: 70ch;
  margin-bottom: 2rem;
}
.about-text p {
  color: var(--text-muted);
  max-width: 75ch;
  margin-bottom: 1rem;
  font-size: 1.02rem;
}

/* =========================================================
   Cards grid (roles / mentored projects)
   ========================================================= */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover {
  border-color: color-mix(in srgb, var(--color-primary) 40%, var(--surface-border));
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.card-period {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-top: 0.4rem;
}
.card-org {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-top: 0.15rem;
}
.card-desc {
  margin-top: 0.75rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}
.empty-state {
  color: var(--text-muted);
  font-style: italic;
  border: 1px dashed var(--surface-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}
.card-with-logo {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.card-title-link {
  text-decoration: none;
  color: inherit;
}
.card-title-link:hover { color: var(--color-primary); }

/* Moldura branca fixa atrás do logo (não segue o tema): garante que todo
   logo em "Onde estou trabalhando" e projetos mentorados fique num quadro
   branco bem definido, mesmo os que precisam de um fundo escuro por dentro
   (ex.: brasão branco da Marista, via .logo-img--dark). */
.card-with-logo .logo-badge {
  background: #ffffff;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 8px;
  box-sizing: border-box;
  box-shadow: var(--shadow-sm);
}
.card-with-logo .logo-img {
  border-radius: var(--radius-sm);
  box-shadow: none;
  padding: 0;
}

/* =========================================================
   Logo badges — usados em qualquer lugar que hoje mostra
   só texto (escolas, competições, GitHub, tecnologias).
   Sem logo real ainda -> mostra um círculo com iniciais.
   ========================================================= */
.logo-badge {
  --logo-size: 40px;
  flex-shrink: 0;
  width: var(--logo-size);
  height: var(--logo-size);
  display: grid;
  place-items: center;
}
.logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
  transition: transform 0.2s ease;
  /* Fundo branco fixo (não segue o tema): muitos logos oficiais são
     PNG/SVG com fundo transparente e traço claro ou preto, então sem
     essa base eles ficam invisíveis no tema escuro (ou no claro, no
     caso de logos brancos como o da Rede Marista). */
  background: #ffffff;
  padding: 3px;
  box-sizing: border-box;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.06);
}
/* Para logos claros/brancos (ex.: brasão da Marista) que somem num fundo branco */
.logo-img--dark {
  background: var(--color-primary-strong);
  box-shadow: none;
}
.logo-circle {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(160deg, var(--color-primary), var(--color-primary-strong));
  color: var(--text-on-primary);
  font-weight: 700;
  font-size: calc(var(--logo-size) * 0.36);
}
.chip-with-logo {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
}

/* =========================================================
   Stats grid (ex.: "17+ Turmas", "410+ Alunos"...)
   ========================================================= */
.stats-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.85rem;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.stat-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.4rem;
}
.stat-count {
  font-size: clamp(2.4rem, 5vw, 3.1rem);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* =========================================================
   Tecnologias — portal visual de logos
   ========================================================= */
.tech-group { margin-bottom: 2rem; }
.tech-group:last-child { margin-bottom: 0; }
.tech-group-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin: 0 0 1rem;
}
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 1.5rem;
}
.tech-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  padding: 1.25rem 0.75rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.tech-tile:hover {
  border-color: color-mix(in srgb, var(--color-primary) 40%, var(--surface-border));
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.tech-tile:hover .logo-img,
.chip-featured:hover .logo-img { transform: scale(1.08); }
.tech-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
}

/* =========================================================
   Skills
   ========================================================= */
.skills-groups {
  max-width: 46rem;
}
/* Accordion, no espírito do componente Accordion do shadcn/ui: sem caixa,
   só uma linha divisória fina entre os itens — nada de "cards com borda". */
.skill-group { border-bottom: 1px solid var(--surface-border); }
.skill-group:first-child { border-top: 1px solid var(--surface-border); }
.skill-group-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding-block: 1.1rem;
  background: none;
  border: none;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.skill-group-icon-wrap {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: 999px;
  background: linear-gradient(160deg, var(--color-primary), var(--color-primary-strong));
  transition: transform 0.2s ease;
}
.skill-group-header:hover .skill-group-icon-wrap { transform: scale(1.08); }
.skill-group-icon {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: var(--text-on-primary);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.skill-group-title {
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--text);
  flex: 1;
  transition: color 0.15s ease;
}
.skill-group-header:hover .skill-group-title { color: var(--color-primary); }
.skill-group-count {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-alt);
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
}
.skill-group-chevron {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  fill: none;
  stroke: var(--text-muted);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.25s ease;
}
.skill-group-header[aria-expanded="true"] .skill-group-chevron { transform: rotate(180deg); }
.skill-group-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-bottom: 1.25rem;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--bg-alt);
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  padding: 0.35rem 0.85rem 0.35rem 0.6rem;
  font-size: 0.85rem;
  color: var(--text);
  transition: border-color 0.15s ease, background-color 0.15s ease;
}
.tag:hover { border-color: var(--color-primary); background: var(--bg-alt); }
.tag-icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* =========================================================
   Timeline
   ========================================================= */
.timeline {
  position: relative;
  margin-left: 0.6rem;
  padding-left: 1.75rem;
  border-left: 2px solid var(--surface-border);
  overflow: hidden;
  transition: max-height 0.4s ease;
}
/* Degradê que "ofusca" o final da lista quando ela está fechada, sinalizando
   que tem mais conteúdo abaixo do botão. */
.timeline-collapsed::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 90px;
  background: linear-gradient(to bottom, transparent, var(--bg-alt));
  pointer-events: none;
}
.timeline-expand {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 1.75rem auto 0;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  color: var(--color-primary);
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease, transform 0.15s ease;
}
.timeline-expand:hover {
  background: var(--bg-alt);
  border-color: var(--color-primary);
  transform: translateY(2px);
}
.timeline-expand .chevron {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.25s ease;
}
.timeline-expand[aria-expanded="true"] .chevron { transform: rotate(180deg); }
.timeline-item {
  position: relative;
  padding-bottom: 2rem;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.98rem;
  top: 0.35rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 4px var(--bg-alt);
}
.timeline-era {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.timeline-card {
  margin-top: 0.4rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.timeline-card:hover {
  border-color: color-mix(in srgb, var(--color-primary) 40%, var(--surface-border));
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.timeline-card:hover .logo-img { transform: scale(1.08); }
.timeline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.timeline-header-main {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.timeline-title { font-weight: 700; font-size: 1.05rem; }
.timeline-org { color: var(--text-muted); font-size: 0.88rem; margin-top: 0.2rem; }
.timeline-type {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
}
.timeline-desc {
  margin-top: 0.6rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}
.timeline-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.85rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
}
.timeline-link:hover { text-decoration: underline; }
.timeline-link svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* =========================================================
   Código aberto — logo do GitHub como gatilho de um collapse
   ========================================================= */
.github-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-inline: auto;
  background: none;
  border: none;
  font: inherit;
  cursor: pointer;
  padding: 0;
}
.github-toggle-logo {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  background: #ffffff;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 12px;
  box-sizing: border-box;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.github-toggle:hover .github-toggle-logo {
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--shadow-md);
}
.github-toggle-chevron {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  fill: none;
  stroke: var(--text-muted);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.25s ease;
}
.github-toggle[aria-expanded="true"] .github-toggle-chevron { transform: rotate(180deg); }
.github-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.github-panel .chip-grid { padding-top: 1.5rem; }

/* =========================================================
   Competitions chips
   ========================================================= */
.chip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}
.chip-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.3rem;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.chip-card:hover {
  border-color: color-mix(in srgb, var(--color-primary) 40%, var(--surface-border));
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.chip-acronym {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--color-primary);
  text-decoration: none;
  display: inline-block;
}
a.chip-acronym:hover { text-decoration: underline; }
.chip-desc {
  margin-top: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
/* Competições: logo em destaque, centralizado e maior */
.chip-featured {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.6rem;
  padding: 1.5rem 1.25rem;
}
.chip-featured .logo-badge { --logo-size: 64px; }
.chip-featured .chip-desc { margin-top: 0; }
.footnote {
  margin-top: 1.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
}

/* =========================================================
   Contact
   ========================================================= */
.contact-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.25rem;
}
.contact-icons {
  display: flex;
  gap: 0.85rem;
}
.contact-icon-link {
  display: block;
  border-radius: 999px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.contact-icon-link:hover { transform: translateY(-2px); }
.contact-icon-link .logo-badge { --logo-size: 52px; }
/* Sem bolinha/fundo atrás do ícone — só a imagem da marca */
.contact-icon-link .logo-img {
  background: transparent;
  padding: 0;
  box-shadow: none;
  border-radius: 0;
}
.contact-icon-link .logo-circle { border-radius: 999px; }
.contact-location {
  color: var(--text-muted);
  font-size: 0.9rem;
}
.social-list {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}
.social-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  padding: 0.4rem 1rem 0.4rem 0.5rem;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--text);
}
.social-list a:hover { border-color: var(--color-primary); color: var(--color-primary); }
.social-list .logo-badge { --logo-size: 20px; }
.social-list .logo-img { padding: 2px; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer {
  border-top: 1px solid var(--surface-border);
  padding-block: 1.75rem;
  background: var(--bg-alt);
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-grid code {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 820px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-tagline { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .hero-avatar { order: -1; }
}