:root {
    --primary-color: #201534;
    --secondary-color: #4a90e2;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --button-gradient-left: #ff8f00;
    --button-gradient-right: #ee4848;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    font-family: var(--font-family);
    background-color: var(--light-bg);
    color: var(--text-color);
}

/* Encabezado con gradiente */
.app-header {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
}

/* Botón con gradiente */
button[type="submit"] {
    background: linear-gradient(to right, var(--button-gradient-left), var(--button-gradient-right));
    border: none;
    color: #fff;
    font-weight: bold;
    padding: 0.75rem;
    border-radius: 0.5rem;
    transition: background 0.3s ease;
}

button[type="submit"]:hover {
    opacity: 0.9;
}

/* Animación de puntos de carga */
.loading-dots {
    display: inline-block;
}

.loading-dots span {
    animation: blink 1.4s infinite;
    font-size: 1.2rem;
}

.loading-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes blink {
    0% { opacity: 0; }
    50% { opacity: 1; }
    100% { opacity: 0; }
}

/* Área de respuesta */
#responseContainer {
    border-left: 5px solid var(--secondary-color);
    background-color: #ffffff;
}

#responseContent p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

#responseContent ul {
    padding-left: 1.5rem;
}

#responseContent li {
    margin-bottom: 0.5rem;
}