/* ===== Reset e tokens ===== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html:focus-within { scroll-behavior: smooth; }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
               Arial, "Noto Sans", "Liberation Sans", sans-serif;
  line-height: 1.6;
  color: #0f172a;
  background: radial-gradient(1200px 600px at 80% -10%, #dbeafe 0, transparent 40%),
              radial-gradient(900px 500px at -10% 20%, #f1f5f9 0, transparent 45%),
              #ffffff;
  min-height: 100svh;
}
@media (prefers-color-scheme: dark) {
  body {
    color: #e2e8f0;
    background: radial-gradient(1200px 600px at 80% -10%, #0b1220 0, transparent 40%),
                radial-gradient(900px 500px at -10% 20%, #0a101b 0, transparent 45%),
                #0b1020;
  }
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
:root {
  --cont: 1200px;
  --radius: 14px;
  --muted: #f8fafc;
  --card: #ffffff;
  --border: rgba(15, 23, 42, 0.08);
  --brand: #2563eb;
  --brand-2: #7c3aed;
}
@media (prefers-color-scheme: dark) {
  :root {
    --muted: #0f172a;
    --card: rgba(255,255,255,0.06);
    --border: rgba(148,163,184,0.16);
  }
}

.skip-link {
  position: absolute; left: -999px; top: auto; width: 1px; height: 1px; overflow: hidden;
}
.skip-link:focus {
  position: fixed; z-index: 50; left: 1rem; top: 1rem; width: auto; height: auto;
  padding: .5rem .75rem; background: #111827; color: #fff; border-radius: 8px;
}

/* ===== Container ===== */
.container { width: min(100% - 2rem, var(--cont)); margin-inline: auto; }

/* ===== Header / Navbar ===== */
.site-header {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: saturate(1.2) blur(6px);
  background: color-mix(in srgb, var(--muted) 70%, transparent);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 1rem;
  padding-block: .75rem;
}
.brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; letter-spacing: .2px; }
.brand .brand-mark {
  width: 1.25rem; height: 1.25rem; display: inline-grid; place-items: center;
  border-radius: 4px; color: #fff; font-weight: 800;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
}
.brand .brand-text span { color: color-mix(in srgb, var(--brand) 80%, #000 20%); }
@media (prefers-color-scheme: dark) {
  .brand .brand-text span { color: color-mix(in srgb, var(--brand) 80%, #fff 20%); }
}

.nav-toggle {
  display: none; width: 42px; height: 42px; border-radius: 10px;
  background: var(--card); border: 1px solid var(--border);
}
.nav-toggle .hamburger,
.nav-toggle .hamburger::before,
.nav-toggle .hamburger::after {
  content: ""; display: block; width: 22px; height: 2px; background: currentColor; margin: auto;
  position: relative; transition: transform .3s ease, opacity .2s ease;
}
.nav-toggle .hamburger::before { position: absolute; transform: translateY(-7px); }
.nav-toggle .hamburger::after { position: absolute; transform: translateY(7px); }

.nav ul { display: flex; gap: .75rem; }
.nav a {
  display: inline-block; padding: .6rem .9rem; border-radius: 10px; font-weight: 600;
  border: 1px solid transparent;
}
.nav a:hover {
  background: color-mix(in srgb, var(--brand) 12%, transparent);
  border-color: color-mix(in srgb, var(--brand) 20%, var(--border));
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav { position: fixed; inset: 64px 0 auto 0; background: var(--muted); border-bottom: 1px solid var(--border);
         transform: translateY(-120%); transition: transform .3s ease; }
  .nav ul { flex-direction: column; padding: .75rem; }
  .nav.open { transform: translateY(0); }
  body.nav-open { overflow: hidden; }
  .site-header .container { grid-template-columns: 1fr auto; }
}

/* ===== Seções reutilizáveis ===== */
.section { padding: clamp(2.5rem, 6vw, 4rem) 0; }
.section-head { text-align: center; margin-bottom: clamp(1.25rem, 3vw, 2rem); }
.section-head h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); line-height: 1.2; }
.section-head p { color: #475569; }
@media (prefers-color-scheme: dark) { .section-head p { color: #cbd5e1; } }

/* ===== Botões, badges ===== */
.actions { display: flex; gap: .6rem; margin-top: 1.2rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  height: 44px; padding: 0 1rem; border-radius: 12px; font-weight: 700; letter-spacing: .2px;
  border: 1px solid var(--border); transition: transform .04s ease, box-shadow .2s ease, background .2s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  color: #fff; border-color: transparent;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 6px 18px color-mix(in srgb, var(--brand) 35%, transparent);
}
.btn-primary:hover { box-shadow: 0 10px 26px color-mix(in srgb, var(--brand) 45%, transparent); }
.btn-ghost { background: var(--card); }
.btn-ghost:hover { background: color-mix(in srgb, var(--brand) 10%, var(--card)); }

.badges { display: flex; gap: .5rem; margin-top: 1.1rem; flex-wrap: wrap; }
.badge {
  font-size: .85rem; font-weight: 700; letter-spacing: .2px;
  border: 1px solid var(--border); padding: .35rem .6rem; border-radius: 999px;
  background: var(--card);
}

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem 0;
  background: color-mix(in srgb, var(--muted) 70%, transparent);
}
.site-footer .container {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}
.site-footer nav { display: flex; gap: .75rem; flex-wrap: wrap; }
.site-footer nav a { padding: .35rem .6rem; border-radius: 8px; border: 1px solid transparent; }
.site-footer nav a:hover { border-color: var(--border); }

::selection { background: color-mix(in srgb, var(--brand) 20%, #000); color: #fff; }

/* ===== Reveal utilities (fade + move) =====
   Importante: a invisibilidade só é aplicada quando o JS adiciona .js-reveal no <body>.
   Assim, se o JS falhar, nada some. */
body.js-reveal .reveal {
  opacity: 0;
  transform: translateY(10px);
  will-change: opacity, transform;
}
body.js-reveal .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity .7s ease,
    transform .7s cubic-bezier(.2,.65,.2,1);
  transition-delay: var(--reveal-delay, 0ms);
}
/* Direções (escopadas ao gate também) */
body.js-reveal [data-reveal="up"]    { transform: translateY(14px); }
body.js-reveal [data-reveal="down"]  { transform: translateY(-14px); }
body.js-reveal [data-reveal="left"]  { transform: translateX(16px); }
body.js-reveal [data-reveal="right"] { transform: translateX(-16px); }

/* Hover com destaque (botões e cards clicáveis) */
.btn:hover {
  transform: translateY(0) scale(1.03);
  box-shadow: 0 12px 28px color-mix(in srgb, var(--brand) 50%, transparent);
}
.btn:active {
  transform: translateY(1px) scale(0.995);
}
/* Se houver transform já aplicado em cards, o scale compõe bem */
.card:hover {
  transform: translateY(-3px) scale(1.02);
}

/* Respeita usuários que reduzem animação */
@media (prefers-reduced-motion: reduce) {
  body.js-reveal .reveal { opacity: 1 !important; transform: none !important; }
  body.js-reveal .reveal.is-visible { transition: none !important; }
  .btn:hover, .btn:active, .card:hover { transform: none !important; box-shadow: none !important; }
}