/* Centrado absoluto y fondo azul aero */
body {
    margin: 0;
    padding: 0;
    width: 100vw;
    height: 100vh;
    background-color: #7CB9E8; /* Azul Aero */
    
    display: flex;
    justify-content: center;
    align-items: center;
    
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Caja contenedora */
.window {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    width: 320px;
    overflow: hidden;
}

/* Barra superior minimalista */
.titlebar {
    background-color: #f1f5f9;
    padding: 10px 16px;
    border-bottom: 1px solid #e2e8f0;
    font-size: 14px;
    font-weight: 600;
    color: #64748b;
    text-align: left;
}

/* Espaciado del contenido */
.content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Inputs y botones estilizados */
.content input {
    padding: 10px 14px;
    border: 2px solid #cbd5e1;
    border-radius: 6px;
    font-size: 16px;
    outline: none;
}

.content input:focus {
    border-color: #7CB9E8;
}

.content button {
    background-color: #7CB9E8;
    color: white;
    border: none;
    padding: 10px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
}

.content button:hover {
    background-color: #5ba3db;
}

#resultado {
    font-size: 14px;
    color: #334155;
    text-align: center;
    min-height: 20px;
}