/* ============================================================
   CTA — Seção de call-to-action + botão magnético
   ============================================================ */

.cta {
  position: relative; min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center; padding: 4rem 1.5rem; overflow: hidden;
}

/* Círculo decorativo com borda girando */
.cta__circle {
  position: absolute; top: 50%; left: 50%;
  width: min(78vw, 620px); aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border: 1px solid var(--border); border-radius: 50%;
  pointer-events: none;
}
.cta__circle::after {
  content: ""; position: absolute; inset: -1px;
  border-radius: 50%;
  border: 1px solid transparent;
  border-top-color: var(--accent-dim);
  animation: spin 14s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Conteúdo centralizado */
.cta__inner { position: relative; z-index: 2; max-width: 640px; }
.cta .tag   { margin-bottom: 2rem; }
.cta h2 {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(2.8rem, 8vw, 6rem); line-height: 1;
  letter-spacing: -0.02em; margin-bottom: 1.6rem;
}
.cta p {
  font-family: var(--serif); font-size: clamp(1.1rem, 2.2vw, 1.45rem);
  color: #b8b8b8; max-width: 40ch; margin: 0 auto 3.2rem;
}

/* Wrapper do botão magnético (movimentado via GSAP no hover) */
.magnetic-wrap { display: inline-block; will-change: transform; }

/* Botão com fill de baixo para cima ao hover */
.btn {
  font-family: var(--mono); font-size: 0.82rem;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--text); background: transparent;
  border: 1px solid var(--accent);
  padding: 1.25rem 2.6rem; cursor: pointer;
  position: relative; overflow: hidden; display: inline-block;
  transition: color 0.4s var(--ease);
}
.btn span   { position: relative; z-index: 2; }
.btn::before {
  content: ""; position: absolute; inset: 0;
  background: var(--accent);
  transform: translateY(101%);
  transition: transform 0.45s var(--ease); z-index: 1;
}
.btn:hover          { color: #021b13; }
.btn:hover::before  { transform: translateY(0); }