:root{
  --green:#34A853;
  --blue:#1E88E5;
  --white:#FFFFFF;
  --text:#333333;
  --muted:#5f6368;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --border:#E6EAF0;
  --shadow:0 10px 30px rgba(30,136,229,0.08);
  /* altura dinâmica do header (atualizada via JS) */
  --header-h: 64px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,'Noto Sans',sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#FFFFFF 0%, #F9FBFF 100%);
  line-height:1.6;
}
/* trava o scroll do fundo quando o menu está aberto */
html.nav-open{overflow:hidden}
img{max-width:100%;display:block}
.container{width:min(1120px, 92%);margin-inline:auto}
.muted{color:var(--muted)}
.tiny{font-size:.875rem}

.skip-link{
  position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden;
}
.skip-link:focus{left:16px;top:16px;width:auto;height:auto;background:#000;color:#fff;padding:8px 12px;border-radius:8px;z-index:10001}

/* Header */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.8);backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(230,234,240,.7);
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(0,0,0,.06)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand{display:flex;align-items:center;gap:2px;color:inherit;text-decoration:none;font-weight:700}
.brand .logo-dot{width:14px;height:14px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--green))}
.brand .brand-text{display:flex;flex-direction:column;line-height:1}
.brand small{font-weight:600;color:var(--muted)}
.brand .logo{
  height:4em;     /* aumenta a altura do logo no menu */
  width:auto;
  display:block;
}

.site-nav{display:flex;align-items:center;gap:20px}
.site-nav ul{display:flex;list-style:none;padding:0;margin:0;gap:6px}
.site-nav .nav-link{
  display:inline-block;padding:10px 12px;border-radius:10px;color:#1f2937;text-decoration:none;font-weight:600;
  transition:all .2s ease;
}
.site-nav .nav-link:hover{color:var(--blue);background:#EAF3FF}
.site-nav .nav-link.active{color:#0b66c3;background:#E6F2FF}
.nav-cta .btn{margin-left:4px}

/* Mobile nav */
.nav-toggle{display:none;background:none;border:0;padding:8px;border-radius:8px;position:relative;color:#222}
/* aumenta área de toque no mobile */
@media (max-width: 920px){
  .nav-toggle{display:inline-flex;min-width:44px;min-height:44px;align-items:center;justify-content:center}
}
/* barras do hamburguer */
.nav-toggle .bar{
  position:relative;
  display:block;
  width:22px;
  height:2px;
  background:currentColor;
  border-radius:2px;
  transition:transform .2s ease, background .2s ease;
}
/* desenha as três linhas usando pseudo-elementos no primeiro .bar */
.nav-toggle .bar::before,
.nav-toggle .bar::after{
  content:"";
  position:absolute;
  left:0;
  width:100%;
  height:2px;
  background:currentColor;
  border-radius:2px;
  transform-origin:center;
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle .bar::before{transform:translateY(-6px)}
.nav-toggle .bar::after{transform:translateY(6px)}
/* se houver múltiplos spans .bar, mantém apenas o primeiro visível */
.nav-toggle .bar:not(:first-child){display:none}
/* animação para ícone de fechar (X) quando aberto */
.nav-toggle[aria-expanded="true"] .bar{background:transparent}
.nav-toggle[aria-expanded="true"] .bar::before{transform:translateY(0) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .bar::after{transform:translateY(0) rotate(-45deg)}
@media (max-width: 920px){
  .nav-toggle{display:inline-flex}
  /* menu como overlay fixo abaixo do header dinâmico */
  .site-nav{
    position:fixed;
    top:calc(var(--header-h,64px) + env(safe-area-inset-top));
    left:0;right:0;
    background:rgba(255,255,255,.98);
    border-bottom:1px solid var(--border);
    z-index:999; /* abaixo do header, acima do conteúdo */
    display:none;flex-direction:column;align-items:stretch;
    padding:12px 16px;gap:8px
  }
  .site-nav.open{display:flex}
  .site-nav ul{flex-direction:column;width:100%}
  .site-nav .nav-link{width:100%}
}

/* Sections */
.section{padding:80px 0}
.section.alt{background:var(--bg)}
.section-header{max-width:760px;margin:0 auto 32px auto;text-align:center}
.section-header h2{font-size:2rem;margin:0 0 8px}
.section-header p{margin:0;color:var(--muted)}

/* Hero */
.hero{
  /* respeita a altura do header em todas as telas */
  padding-top: calc(var(--header-h, 64px) + 0px);
}
.hero-grid{display:grid;gap:32px;grid-template-columns: 1.1fr .9fr;align-items:center}
/* hero responsivo: colunas empilhadas no mobile */
@media (max-width: 920px){
  .hero-grid{grid-template-columns:1fr}
  .hero-media{order:-1;display:none}
  .brand .logo{height:3rem}
}
/* garante centralização do subtítulo no mobile */
@media (max-width: 920px){
  .brand .brand-text{
    align-items:center; /* centraliza os filhos no eixo horizontal */
    text-align:center;  /* centraliza o texto dentro dos itens */
  }
  .brand .brand-subtitle{
    display:block;
    width:100%;        /* ocupa a largura do container para permitir centragem perfeita */
    text-align:center;
  }
}
.hero-text h1{font-size:clamp(2rem, 1.6rem + 2vw, 3rem);line-height:1.15;margin:0 0 12px}
.lead{font-size:1.125rem;color:#3c4043;margin:0 0 18px}
.gradient-text{background:linear-gradient(135deg,var(--blue),var(--green));-webkit-background-clip:text;background-clip:text;color:transparent}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0 14px}
.pill-list{display:flex;gap:10px;flex-wrap:wrap;padding:0;margin:10px 0 0 0;list-style:none}
.pill-list li{padding:8px 12px;border-radius:999px;background:#F1F5F9;border:1px solid var(--border);font-weight:600;color:#374151}
.hero-media .media-card{border-radius:16px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border)}
.hero-media img{aspect-ratio:4/3;object-fit:cover}

/* Grid and cards */
.grid{display:grid;gap:18px}
.cards-people{grid-template-columns: repeat(4, 1fr)}
@media (max-width: 1060px){.cards-people{grid-template-columns: repeat(2, 1fr)}}
@media (max-width: 560px){.cards-people{grid-template-columns: 1fr}}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);
  transition:transform .2s ease, box-shadow .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(0,0,0,.08)}
.card .card-body{padding:16px}
.person .avatar{aspect-ratio:1/1;overflow:hidden}
.person img{width:100%;height:100%;object-fit:cover}
.person h3{margin:8px 0 6px}
.person .role{font-weight:700;color:var(--blue);margin:0 0 8px}
.person .bio{margin:0;color:#48515b}

.cards-projects{grid-template-columns: repeat(3, 1fr)}
@media (max-width: 1060px){.cards-projects{grid-template-columns: repeat(2, 1fr)}}
@media (max-width: 720px){.cards-projects{grid-template-columns: 1fr}}
.project img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}
.badge{
  position:absolute;margin:12px;background:var(--green);color:#fff;font-weight:800;font-size:.75rem;letter-spacing:.4px;
  padding:6px 10px;border-radius:999px;box-shadow:0 6px 18px rgba(52,168,83,.3)
}
.badge-blue{background:var(--blue)}

/* Timeline (Notícias) */
.timeline{position:relative;margin-left:8px;padding-left:18px}
.timeline:before{content:"";position:absolute;left:6px;top:0;bottom:0;width:2px;background:#dbe4f0}
.timeline-item{position:relative;margin:16px 0}
.timeline-dot{position:absolute;left:-2px;top:8px;width:14px;height:14px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--green));box-shadow:0 0 0 4px #EAF3FF}
.timeline-card{
  background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px 16px;box-shadow:var(--shadow)
}
.timeline-card h3{margin:0 0 6px}

/* Publicações */
.pub-grid{display:grid;gap:18px;grid-template-columns: repeat(3, 1fr)}
@media (max-width: 900px){.pub-grid{grid-template-columns: 1fr 1fr}}
@media (max-width: 560px){.pub-grid{grid-template-columns: 1fr}}
.pub-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px;box-shadow:var(--shadow)}
.pub-card h3{margin:4px 0 10px}
.list{margin:0;padding-left:18px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:800;border-radius:12px;padding:12px 16px;text-decoration:none}
.btn-primary{background:var(--blue);color:#fff;border:2px solid var(--blue);box-shadow:0 10px 24px rgba(30,136,229,.25)}
.btn-primary:hover{background:#156fb9;border-color:#156fb9}
.btn-outline{background:transparent;color:#0b66c3;border:2px solid #A9D2FF}
.btn-outline:hover{background:#EAF3FF;border-color:#68B7FF}
.btn-link{font-weight:800;color:#0b66c3;text-decoration:none}
.btn-link:hover{text-decoration:underline}

/* Footer */
.site-footer{padding:36px 0 22px;border-top:1px solid var(--border);background:#fff}
.footer-grid{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.social{display:flex;gap:12px;align-items:center}
.social-link{display:inline-flex;align-items:center;gap:8px;color:#1f2937;text-decoration:none;font-weight:700;padding:8px 12px;border-radius:10px;border:1px solid var(--border)}
.social-link:hover{background:#F7FBFF;color:#0b66c3;border-color:#A9D2FF}
.social-link svg{width:18px;height:18px}

/* To Top */
.to-top{
  position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom));
  border:0;border-radius:999px;background:var(--green);color:#fff;
  width:42px;height:42px;display:none;align-items:center;justify-content:center;box-shadow:0 10px 24px rgba(52,168,83,.25);
  cursor:pointer;font-weight:900
}
.to-top.show{display:flex}

/* Reveal on scroll */
.will-reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease}
.revealed{opacity:1;transform:none}