/* buttons.css — pill-shaped por padrão (border-radius: var(--radius-pill)) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.375rem;
  font-size: 1em;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  border: 1.5px solid transparent;
  border-radius: var(--radius-pill);
  transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s, transform 0.1s;
  cursor: pointer;
  text-decoration: none;
  letter-spacing: 0.01em;
}
.btn:active { transform: scale(0.98); }

.btn-lg { padding: 0.875rem 2rem; font-size: 1em; }
.btn-sm { padding: 0.375rem 1rem; font-size: 0.75em; }

.btn-primary {
  background: var(--primary);
  color: var(--primary-foreground);
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-glow);
  border-color: var(--primary-glow);
  box-shadow: 0 4px 16px rgba(16,29,64,0.35);
}

.btn-secondary {
  background: var(--surface-2);
  color: var(--foreground);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--muted); }

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover { background: var(--primary); color: var(--primary-foreground); }

.btn-ghost {
  background: transparent;
  color: var(--muted-foreground);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--surface); color: var(--foreground); }

.btn-white {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.btn-white:hover { background: rgba(255,255,255,0.9); }

@media (max-width: 768px) {
  .btn { font-size: 4vw; }
  .btn-lg { font-size: 4vw; }
}