/* ============================================================
   buttons.css — Botões Táticos Militares (Preto & Dourado Metálico)
   ============================================================ */

.btn {
  display:         inline-flex;
  align-items:     center;
  justify-content: center;
  gap:             var(--space-2);
  position:        relative;
  overflow:        hidden;
  border:          none;
  cursor:          pointer;
  text-decoration: none;
  font-family:     var(--font-primary);
  font-weight:     var(--weight-extrabold);
  letter-spacing:  0.06em;
  text-transform:  uppercase;
  line-height:     1.1;
  border-radius:   var(--radius-pill);
  transition:
    transform      var(--transition-base),
    box-shadow     var(--transition-base),
    border-color   var(--transition-base);
  user-select:     none;
  -webkit-tap-highlight-color: transparent;
}

.btn:active {
  transform: scale(0.97);
}

/* ── Botão Primário Dourado Tático ────────────────────────────── */
.btn-gold {
  background:  var(--grad-gold-primary);
  color:       #0A0600;  /* Texto escuro de alto contraste sobre latão dourado */
  font-size:   var(--text-base);
  padding:     var(--space-5) var(--space-10);
  min-height:  56px;
  box-shadow:
    var(--shadow-gold-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    inset 0 -2px 0 rgba(0, 0, 0, 0.3);
  border: 1px solid var(--color-gold-300);
}

.btn-gold:hover {
  transform:  translateY(-2px) scale(1.02);
  box-shadow:
    0 0 50px rgba(212, 175, 55, 0.55),
    0 10px 30px rgba(0, 0, 0, 0.6),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
  border-color: var(--color-gold-100);
}

/* Tamanho Grande (Hero & CTAs Principais) */
.btn-gold--lg {
  font-size:   clamp(var(--text-base), 1.8vw, var(--text-lg));
  padding:     var(--space-6) var(--space-12);
  min-height:  64px;
  width:       100%;
  max-width:   540px;
}

.btn-gold--full {
  width:     100%;
  max-width: 100%;
}

/* ── Botão Secundário (Outline Dourado Tático) ────────────────── */
.btn-outline-gold {
  background:     rgba(10, 14, 23, 0.8);
  color:          var(--color-gold-300);
  border:         1.5px solid var(--color-gold-500);
  font-size:      var(--text-sm);
  padding:        var(--space-4) var(--space-8);
  min-height:     48px;
  box-shadow:
    0 0 16px rgba(212, 175, 55, 0.15),
    inset 0 0 20px rgba(212, 175, 55, 0.05);
}

.btn-outline-gold:hover {
  background:   rgba(212, 175, 55, 0.12);
  border-color: var(--color-gold-300);
  color:        var(--color-gold-100);
  box-shadow:   0 0 30px rgba(212, 175, 55, 0.3);
  transform:    translateY(-1px);
}

/* ── Microcopy abaixo do CTA ──────────────────────────────────── */
.btn-microcopy {
  display:         flex;
  align-items:     center;
  justify-content: center;
  gap:             var(--space-4);
  font-size:       var(--text-xs);
  color:           var(--color-text-muted);
  margin-top:      var(--space-3);
  flex-wrap:       wrap;
}

.btn-microcopy span {
  display:     inline-flex;
  align-items: center;
  gap:         4px;
}

/* ── Sticky CTA Bar (Mobile) ─────────────────────────────────── */
.sticky-cta-bar {
  position:   fixed;
  bottom:     0;
  left:       0;
  right:      0;
  z-index:    var(--z-sticky);
  padding:    var(--space-3) var(--space-4);
  background: rgba(5, 7, 11, 0.96);
  border-top: 1px solid var(--color-border-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display:    flex;
  align-items: center;
  gap:        var(--space-3);
  transform:  translateY(100%);
  transition: transform var(--transition-slow);
}

.sticky-cta-bar.is-visible {
  transform: translateY(0);
}

.sticky-cta-bar .btn-gold {
  flex: 1;
  font-size: var(--text-xs);
  padding: var(--space-3) var(--space-4);
  min-height: 48px;
  animation: none;
}

@media (min-width: 1024px) {
  .sticky-cta-bar {
    display: none;
  }
}