/* ══════════════════════════════
   BUTTONS
   ══════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .9rem 1.9rem;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .01em;
  border: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  transition:
    transform      .2s cubic-bezier(.34,1.56,.64,1),
    background     var(--transition),
    color          var(--transition),
    border-color   var(--transition),
    box-shadow     var(--transition);
}

/* Ripple pseudo-element */
.btn::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 999px;
  opacity: 0;
  transition: opacity .3s ease;
}

.btn:hover  { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(.98); }

/* ── Primary (amber) ── */
.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 18px rgba(232,160,32,.35);
  animation: pulse-glow 3s 1.5s ease-in-out infinite;
}
.btn--primary:hover {
  background: var(--color-accent-dark);
  box-shadow: 0 8px 28px rgba(232,160,32,.5);
  color: #fff;
  animation: none;
}
.btn--primary:active { box-shadow: 0 2px 8px rgba(232,160,32,.3); }

/* ── Secondary (outline navy) ── */
.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}
.btn--secondary::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s cubic-bezier(.22,1,.36,1);
  z-index: -1;
}
.btn--secondary:hover {
  border-color: var(--color-primary);
  color: #fff;
}
.btn--secondary:hover::before { transform: scaleX(1); }

/* ── Ghost (white, for dark backgrounds) ── */
.btn--ghost {
  background: rgba(255,255,255,.1);
  color: #fff;
  border-color: rgba(255,255,255,.25);
  backdrop-filter: blur(4px);
}
.btn--ghost:hover {
  background: rgba(255,255,255,.2);
  border-color: rgba(255,255,255,.45);
  color: #fff;
}