/* ===== RESPONSIVE — Alfa Dash v2.0 ===== */

@media (max-width: 1100px) {
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 1024px) {
  .grid-4  { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .steps-grid::before { display: none; }
  .hero-grid { grid-template-columns: 1fr; padding: 90px 0 60px; }
  .hero-panel { display: none; }
  .hero h1 { font-size: 2.2rem; }
  .hero-subtitle { max-width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 780px) {
  .grid-3, .grid-2, .two-col { grid-template-columns: 1fr; }
  .grid-4  { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }

  .hero { min-height: auto; }
  .hero-grid { padding: 100px 0 56px; }
  .hero h1  { font-size: 1.9rem; }

  /* ── Mobile nav ──────────────────────────────────────────────
     IMPORTANTE: position:absolute (não fixed) porque o
     backdrop-filter do header cria stacking context no Chrome/Safari
     e quebraria o posicionamento de position:fixed nos filhos.
     O header é sticky → cria containing block para absolute.
  ──────────────────────────────────────────────────────────── */
  .menu-toggle { display: flex !important; }

  .main-nav {
    display: none;
    position: absolute;        /* relativo ao header sticky */
    top: 100%;                 /* cola logo abaixo do header */
    left: 0;
    right: 0;
    flex-direction: column;
    background: #060c1a;       /* sólido: sem backdrop-filter para mobile */
    border-top: 1px solid rgba(58,124,193,.25);
    border-bottom: 1px solid rgba(58,124,193,.15);
    padding: 10px 16px 20px;
    z-index: 150;
    gap: 2px;
    max-height: 82vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    box-shadow: 0 24px 60px rgba(0,0,0,.75);
  }

  .main-nav.open {
    display: flex;
    animation: mobileNavIn .22s ease;
  }

  /* Links de navegação */
  .main-nav > a:not(.btn) {
    display: flex;
    align-items: center;
    padding: 15px 18px;
    border-radius: 10px;
    font-size: 1.02rem;
    font-weight: 500;
    color: #a8bfd4;
    min-height: 52px;          /* área mínima toque confortável */
    transition: background .15s, color .15s;
    width: 100%;
    border: 1px solid transparent;
  }
  .main-nav > a:not(.btn):hover,
  .main-nav > a:not(.btn):active {
    background: rgba(58,124,193,.14);
    color: #ffffff;
    border-color: rgba(58,124,193,.22);
  }

  /* Separador visual antes do botão CTA */
  .main-nav .btn {
    width: 100%;
    justify-content: center;
    margin-top: 12px;
    padding: 14px 20px;
    font-size: .97rem;
  }
  .main-nav > .btn:first-of-type {
    border-top: 1px solid rgba(58,124,193,.2);
    padding-top: 14px;
  }

  /* Logo menor no mobile */
  .logo strong { font-size: 1.5rem; }
  .logo img    { width: 38px; height: 38px; }

  .section { padding: 52px 0; }
  .page-hero { padding: 54px 0 38px; }
  .section-header { margin-bottom: 36px; }

  .cta-block { padding: 36px 22px; }
  .hero-cta  { flex-direction: column; }
  .hero-cta .btn { justify-content: center; width: 100%; max-width: 340px; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }

  .contact-form, .contact-info-card { width: 100%; }
}

/* Animação entrada menu mobile */
@keyframes mobileNavIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .grid-4.stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 1.7rem; }
  .btn-large { padding: 12px 22px; font-size: .95rem; }
  .cta-block { padding: 28px 18px; }
}