/* ==========================================================================
   Estados de botones — feedback visual + accesibilidad
   Se aplica automáticamente a cualquier link o botón cuya clase contenga
   "btn" (eg-btn-dark, eg-btn-primary, eg-btn-outline, eg-btn-yellow, etc.)
   No requiere tocar el HTML existente.
   ========================================================================== */

:root {
  --btn-motion: 180ms cubic-bezier(.4, 0, .2, 1);
}

[class*="btn" i] {
  transition: transform var(--btn-motion), box-shadow var(--btn-motion),
    filter var(--btn-motion), opacity var(--btn-motion);
}

/* Foco visible al navegar con teclado (Tab). No aparece con el mouse. */
[class*="btn" i]:focus-visible {
  outline: 2.5px solid currentColor;
  outline-offset: 3px;
  border-radius: 9999px;
}

/* Feedback táctil al presionar (mouse, touch o Enter/Espacio) */
[class*="btn" i]:active {
  transform: scale(0.95);
  filter: brightness(0.94);
  transition-duration: 90ms;
}

/* Botón deshabilitado */
[class*="btn" i][disabled],
[class*="btn" i].is-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
  transform: none !important;
}

/* Estado de carga — lo activa/desactiva button-states.js cuando el botón
   dispara algo que tarda (por ejemplo, abrir el widget de Cal.com). */
[class*="btn" i].is-loading {
  position: relative;
  pointer-events: none;
  cursor: default;
  opacity: 0.85;
  padding-right: 2.6em;
}
[class*="btn" i].is-loading::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 1em;
  width: 16px;
  height: 16px;
  margin-top: -8px;
  border-radius: 50%;
  border: 2.5px solid currentColor;
  border-top-color: transparent;
  animation: btn-spin 0.7s linear infinite;
}

@keyframes btn-spin {
  to { transform: rotate(360deg); }
}

/* Respeta a quien prefiere menos animación en el sistema operativo */
@media (prefers-reduced-motion: reduce) {
  [class*="btn" i] { transition: none; }
  [class*="btn" i]:active { transform: none; filter: brightness(0.9); }
  [class*="btn" i].is-loading::after { animation-duration: 1.4s; }
}