:root {
  --phone-border: #2d3436;
  --phone-bg: #ffffff;
  --brand-color: #8c1d40; /* Color Jocotitlán */
  --brand-light: #f3f4f6;
  --fb-blue: #1877f2;
}

/* El cuerpo del teléfono */
.smartphone-mockup {
  position: relative;
  width: 100%;
  max-width: 400px; /* Ancho realista de celular */
  aspect-ratio: 9 / 19; /* Proporción moderna de pantalla */
  margin: 2rem auto;
  border: 14px solid var(--phone-border);
  border-radius: 45px;
  background-color: var(--phone-bg);
  box-shadow: 
    0 0 0 2px #4a4a4a, /* Borde exterior fino */
    0 20px 50px rgba(0,0,0,0.2); /* Sombra 3D */
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}

/* Notch superior estético */
.phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50%;
  height: 25px;
  background-color: var(--phone-border);
  border-bottom-left-radius: 18px;
  border-bottom-right-radius: 18px;
  z-index: 10;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.camera {
  width: 8px;
  height: 8px;
  background: #111;
  border-radius: 50%;
}

.speaker {
  width: 40px;
  height: 4px;
  background: #333;
  border-radius: 4px;
}

/* Pantalla interna */
.phone-screen {
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: #f0f2f5; /* Gris suave estilo FB */
  padding-top: 25px; /* Espacio para el notch */
}

/* Header Personalizado (Branding) */
.app-header {
  background-color: #fff;
  padding: 10px 15px;
  border-bottom: 1px solid #ddd;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
  z-index: 5;
}

.status-bar {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: #555;
  margin-bottom: 10px;
  padding: 0 5px;
  font-weight: 600;
}

.app-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.profile-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.profile-pic {
  width: 38px;
  height: 38px;
  background-color: var(--brand-color);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
  font-size: 1.1rem;
}

.profile-text h4 {
  margin: 0;
  font-size: 0.9rem;
  color: #050505;
  font-weight: 700;
  line-height: 1.2;
}

.profile-text small {
  font-size: 0.75rem;
  color: #65676b;
}

.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: #31a24c;
  border-radius: 50%;
  margin-right: 2px;
}

.fb-btn {
  background-color: var(--fb-blue);
  color: white;
  padding: 6px 14px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  transition: opacity 0.2s;
}

.fb-btn:hover {
  opacity: 0.9;
  color: white;
}

/* Wrapper del Iframe */
.fb-content-wrapper {
  flex: 1;
  overflow: hidden; /* Importante para que no se salga */
  position: relative;
  background: white;
}

/* Truco CSS para forzar al iframe a llenar el contenedor */
.fb-content-wrapper iframe, 
.fb-page, 
.fb-page span {
  width: 100% !important;
  height: 100% !important;
}

/* Navegación inferior falsa para realismo */
.app-bottom-nav {
  height: 50px;
  background: white;
  border-top: 1px solid #ddd;
  display: flex;
  justify-content: space-around;
  align-items: center;
  color: #65676b;
  font-size: 1.2rem;
}

.nav-item.active {
  color: var(--fb-blue);
}