:root{
  --bg: #2d3133;
  --panel: #3f4447;
  --accent: #53ff1e;
  --text: #ffffff;
  --muted: #b8c0c2;
  --radius: 18px;
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }

body{
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(circle at top, #3a4043, var(--bg));
  color: var(--text);
}

/* Acessibilidade */
.skip-link{
  position: absolute;
  left: -999px;
  top: 12px;
  padding: 10px 12px;
  background: #111;
  color: #fff;
  border-radius: 10px;
  text-decoration: none;
  z-index: 999;
}
.skip-link:focus{ left: 12px; }

a{ color: var(--accent); }
a:focus-visible{
  outline: 3px solid color-mix(in srgb, var(--accent) 70%, white);
  outline-offset: 3px;
  border-radius: 10px;
}

/* Topbar */
.topbar{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 75%, transparent);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.topbar__inner{
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.brand{
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: .3px;
}
.brand__mark{
  width: 14px; height: 14px;
  display: inline-block;
  background: var(--accent);
  border-radius: 4px;
  box-shadow: 0 0 0 3px rgba(83,255,30,.15);
}
.nav{
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav__link{
  color: var(--muted);
  text-decoration: none;
  font-weight: 650;
  font-size: 14px;
}
.nav__link:hover{ color: var(--text); }
.nav__cta{
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 900;
  color: #0f1a0f;
  background: linear-gradient(135deg, var(--accent), #a6ff7a);
  box-shadow: 0 10px 26px rgba(83,255,30,.18);
}

/* Layout principal */
.landing{
  min-height: 100%;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 64px;
  padding: 54px 28px 64px;
  max-width: 1200px;
  margin: 0 auto;
}

.hero{
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding-top: 10px;
}

.kicker{
  margin: 0 0 14px;
  color: color-mix(in srgb, var(--muted) 85%, white);
  font-weight: 700;
  letter-spacing: .25px;
  font-size: 14px;
}

.hero h1{
  font-size: clamp(34px, 6vw, 58px);
  margin: 0 0 14px;
  letter-spacing: .4px;
}

.subtitle{
  font-size: 18px;
  color: var(--muted);
  line-height: 1.65;
  margin: 0 auto 28px;
  max-width: 820px;
}

.hero__actions{
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

/* CTA (mantido) */
.cta{
  display: inline-block;
  padding: 16px 28px;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: .35px;
  text-decoration: none;
  color: #0f1a0f;
  background: linear-gradient(135deg, var(--accent), #a6ff7a);
  border-radius: 999px;
  box-shadow:
    0 10px 30px rgba(83,255,30,.25),
    inset 0 -2px 0 rgba(0,0,0,.2);
  transition: transform .15s ease, box-shadow .15s ease;
}
.cta:hover{
  transform: translateY(-2px);
  box-shadow:
    0 16px 40px rgba(83,255,30,.35),
    inset 0 -2px 0 rgba(0,0,0,.25);
}

.secondary{
  display: inline-block;
  padding: 14px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  color: var(--text);
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.10);
}
.secondary:hover{ background: rgba(255,255,255,.09); }

.hero__proof{
  margin-top: 16px;
  display: flex;
  justify-content: center;
}
.hero__proof ul{
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  color: color-mix(in srgb, var(--muted) 90%, white);
  font-weight: 650;
  font-size: 14px;
}

/* Seções */
section h2{
  margin: 0 0 10px;
  font-size: clamp(22px, 3.2vw, 30px);
  letter-spacing: .2px;
}
.section-subtitle{
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 840px;
}

/* Features */
.features .grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.feature{
  position: relative;
  background: var(--panel);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: inset 0 2px 0 rgba(255,255,255,.05);
  transition: transform .35s ease;
  overflow: hidden;
}

.feature::before,
.feature::after{
  content: "";
  position: absolute;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    color-mix(in srgb, var(--accent) 60%, transparent) 0%,
    transparent 65%
  );
  filter: blur(24px);
  opacity: 0;
  transition: opacity .35s ease, transform .6s ease;
  pointer-events: none;
}

.feature::before{ top: -40%; left: -30%; }
.feature::after{ bottom: -40%; right: -30%; }

.feature:hover{ transform: translateY(-4px); }
.feature:hover::before{ opacity: .8; transform: translate(40px, 40px); }
.feature:hover::after{ opacity: .7; transform: translate(-40px, -40px); }

.feature h3{ margin: 0 0 10px; font-size: 18px; }
.feature p{ margin: 0; font-size: 14px; line-height: 1.55; color: var(--muted); }

/* Como funciona */
.steps{
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 16px;
}
.steps h3{ margin: 0 0 6px; font-size: 16px; }
.steps p{ margin: 0; color: var(--muted); line-height: 1.6; }

.how__cta{
  margin-top: 22px;
  display: grid;
  justify-items: start;
  gap: 10px;
}
.microcopy{
  margin: 0;
  color: color-mix(in srgb, var(--muted) 90%, white);
  font-size: 13px;
}

/* FAQ */
.faq{
  max-width: 920px;
}
.qa{
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 12px;
}
.qa summary{
  cursor: pointer;
  font-weight: 900;
}
.qa p{
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

/* Footer */
.footer{
  text-align: center;
  font-size: 13px;
  color: #8fa38c;
  opacity: .95;
}
.footer a{ color: var(--accent); text-decoration: none; font-weight: 800; }
.sep{ margin: 0 8px; }

/* Responsivo */
@media (max-width: 760px){
  .nav__link{ display: none; }
  .landing{ padding: 46px 20px 64px; gap: 52px; }
  .how__cta{ justify-items: stretch; }
}