/* Utility Class para Ocultar Elementos */
.hidden {
  display: none !important;
}
/* --- Estilos Globales del Escenario --- */
body,
html {
  margin: 0;
  padding: 0;
  overflow: hidden;
  font-family: "Poppins", sans-serif;
  height: 100%;
  width: 100%;
}

/* --- Fondos (Temas) --- */
.stage-body {
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
}
.theme-1 {
  background: linear-gradient(-45deg, #f093fb, #f5576c, #4facfe, #00f2fe);
}
.theme-2 {
  background: linear-gradient(-45deg, #84fab0, #8fd3f4, #a0ced9, #c0e0e8);
}
.theme-3 {
  background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
}

@keyframes gradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* --- Vistas de Previsualización (Pre-1 y Pre-2) --- */
.preview-view {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px;
  box-sizing: border-box;
  text-align: center;
  color: white;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.6);
  transition: opacity 0.5s ease;
  z-index: 10;
}
.preview-view.hidden {
  opacity: 0;
  pointer-events: none;
}

/* --- Contenido Pre-1 (Intro) --- */
.intro-title {
  font-size: clamp(2.5em, 10vw, 5em);
  margin-bottom: 20px;
}
.sender-receiver-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  padding: 25px 40px;
  color: #333;
  text-shadow: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  margin-bottom: 30px;
  font-size: clamp(1em, 3vw, 1.3em);
}
.sender-receiver-card p {
  margin: 5px 0;
}
.secondary-message {
  font-size: clamp(1em, 4vw, 1.8em);
  max-width: 800px;
  line-height: 1.5;
}

/* --- Contenido Pre-2 (Cuerpo) --- */
.body-title {
  font-size: clamp(2em, 8vw, 4em);
  margin-bottom: 40px;
}

/* --- Carrusel de Imágenes --- */
.image-carousel-container {
  position: relative;
  width: clamp(250px, 80%, 600px);
  height: clamp(180px, 50vw, 400px);
  margin-bottom: 30px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  border-radius: 15px;
  overflow: hidden;
  transition: opacity 0.5s ease;
}
.image-carousel {
  display: flex;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.image-carousel img {
  flex-shrink: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  color: white;
  border: none;
  padding: 10px 15px;
  cursor: pointer;
  font-size: 1.5em;
  z-index: 20;
  border-radius: 5px;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}
.carousel-btn:hover {
  opacity: 1;
}
.prev-btn {
  left: 10px;
}
.next-btn {
  right: 10px;
}

/* --- YouTube Player --- */
#youtube-player-container {
  position: absolute;
  bottom: -9999px;
  left: -9999px;
}
.loading-animation,
.error-message {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1001;
  color: white;
  background: rgba(0, 0, 0, 0.7);
  padding: 10px 15px;
  border-radius: 8px;
}
.error-message {
  background: #e74c3c;
}

/* --- Controles de Música --- */
.music-controls {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  padding: 8px 15px;
  display: flex;
  gap: 15px;
  align-items: center;
  z-index: 40;
  transition: opacity 0.5s ease;
}
.music-btn {
  background: none;
  border: none;
  color: white;
  font-size: 1.5em;
  cursor: pointer;
  line-height: 1;
}

/* --- Animación de Flores --- */
#falling-elements-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
}
.flower {
  position: absolute;
  top: -50px;
  font-size: clamp(1.5rem, 5vw, 3rem);
  animation: fall linear infinite;
}
@keyframes fall {
  to {
    transform: translateY(105vh) rotate(360deg);
  }
}

/* --- Botón de Mensajes --- */
.messages-btn {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background-color: #f1c40f;
  color: #333;
  padding: 15px 25px;
  font-size: 1.1em;
  border-radius: 50px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 30;
  border: none;
  cursor: pointer;
}
.messages-btn .icon {
  font-size: 1.5em;
  line-height: 1;
}
.messages-btn:hover {
  background-color: #f39c12;
}

/* --- Modal de Mensajes --- */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  opacity: 1;
  transition: opacity 0.3s ease;
}
.modal.hidden {
  opacity: 0;
  pointer-events: none;
}
.modal-content {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(15px);
  border-radius: 20px;
  padding: 30px;
  width: clamp(280px, 90%, 600px);
  position: relative;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  color: #333;
  text-align: center;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.close-button {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 2em;
  cursor: pointer;
  color: #888;
}
.close-button:hover {
  color: #333;
}
.modal-messages-carousel {
  display: flex;
  overflow: hidden;
  scroll-behavior: smooth;
  width: 100%;
}
.modal-message-card {
  /* Estas dos líneas son las que solucionan el problema */
  flex-shrink: 0;
  width: 100%;

  /* El resto de tus estilos aquí */
  padding: 20px;
  font-size: 1.2em;
  line-height: 1.6;
}
.modal-carousel-btn {
  background: rgba(0, 0, 0, 0.1);
  color: #333;
  border: none;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 1.2em;
  border-radius: 5px;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}
.modal-carousel-btn.prev-btn {
  left: 10px;
}
.modal-carousel-btn.next-btn {
  right: 10px;
}
.modal-carousel-btn:hover {
  background: rgba(0, 0, 0, 0.2);
}

/* --- RESPONSIVIDAD DEL ESCENARIO --- */
@media (max-width: 600px) {
  .sender-receiver-card {
    padding: 15px 20px;
  }
  .carousel-btn {
    padding: 5px 8px;
    font-size: 1.2em;
  }
  .messages-btn {
    padding: 10px 15px;
    font-size: 0.9em;
    gap: 5px;
    bottom: 10px;
    right: 10px;
  }
  .messages-btn .icon {
    font-size: 1.2em;
  }
  .modal-content {
    padding: 20px;
    width: 95%;
  }
  .modal-message-card {
    font-size: 1em;
    padding: 10px;
  }
}
/* --- Mejoras Visuales para Controles de Música --- */
.music-btn:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.music-btn:active {
  transform: scale(0.9);
}

/* --- Estilos para Notificaciones Toast --- */
#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
.toast {
  padding: 15px 20px;
  border-radius: 8px;
  color: white;
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  animation: slideIn 0.5s forwards, fadeOut 0.5s forwards 3s;
}
.toast.loading {
  background-color: #3498db;
  animation: slideIn 0.5s forwards; /* El de carga no desaparece solo */
}
.toast.success {
  background-color: #2ecc71;
}
.toast.error {
  background-color: #e74c3c;
  animation-duration: 0.5s, 0.5s, 5s; /* El de error dura más */
}

@keyframes slideIn {
  from {
    transform: translateX(120%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}
@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
    transform: translateX(120%);
  }
}

/* --- Estilos para Elementos Animados (GIFs y Emojis) --- */
.falling-emoji {
  position: absolute;
  top: -50px;
  font-size: clamp(1.5rem, 5vw, 3rem);
  animation: fall linear infinite;
  user-select: none;
}

.falling-gif {
  position: absolute;
  top: -50px;
  width: clamp(30px, 8vw, 60px);
  height: auto;
  animation: fall linear infinite;
  user-select: none;
}

/* Renombramos la animación para evitar conflictos (aunque no es estrictamente necesario) */
@keyframes fall {
  to {
    transform: translateY(105vh) rotate(360deg);
  }
}
/* ================================== */
/* ESTILOS PARA LA PANTALLA DE REGALO */
/* ================================== */
.gift-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(-45deg, #f093fb, #f5576c); /* Un fondo bonito */
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 1s ease, visibility 1s ease;
  opacity: 1;
  visibility: visible;
}

.gift-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.gift-box {
  text-align: center;
  animation: pulse 2s infinite;
}

.gift-icon {
  font-size: clamp(100px, 30vw, 200px);
}

.open-gift-btn {
  margin-top: 20px;
  padding: 15px 40px;
  font-size: 1.5em;
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  background-color: #ffffff;
  color: #e73c7e;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.open-gift-btn:hover {
  transform: scale(1.05);
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}